DE102018102810A1 - STRAP DEVICE - Google Patents

Abstract

An ironing device in which a cavity is provided between an at least partially air-permeable ironing surface and a bottom. In the area of the ironing surface, a condensation grid is provided, which is arranged between an ironing cover and a perforated plate of the ironing surface. For conveying the air through the ironing surface, the condensation grid and a bottom opening of the floor, a ventilation device is provided with a fan and an air intake chamber which is connected via the bottom opening with the cavity of the ironing board and via an air duct with an air vent.

Description

In the prior art ironing devices, in particular ironing devices for steam ironing an ironing material are known. There are also ironing devices are known in which a stirrup steam is sucked through an ironing surface of an ironing board.

The publication WO 2006057026 A1 describes an ironing device comprising a frame and an ironing board. The ironing device further comprises a suction means for sucking the air into the ironing device and a condenser for condensing the humidity contained in the de sucked air.

The object of the present invention is to provide an improved ironing apparatus.

To solve this problem, an ironing device is provided according to a first aspect. According to a first embodiment, the ironing device has an ironing board with an at least partially air-permeable ironing surface and with a bottom. At least one cavity is provided between the ironing surface and the bottom, by means of which on the one hand air can be removed from the ironing surface and, on the other hand, air can be blown out through the ironing surface.

In the area of the ironing surface, a condensation element is provided, which has a condensation grid, which is arranged between an ironing cover and a perforated plate of the ironing surface. Thus, the ironing surface on a perforated plate, a condensation grating above it and located above the condensation grille ironing on. For easier removal of condensation liquid, the soil may have a slope to a bottom opening of the soil.

In the present description, "ironing surface" may also refer only to the surface facing the ironing material, or to a layer which faces the ironing material, it being apparent from the context, what is meant in each case.

Furthermore, the ironing device comprises a ventilation device for supplying and discharging air from and to the ironing surface. The ventilation device comprises an air intake chamber, which is connected via the bottom opening with the at least one cavity of the ironing board, and which is connected via an air duct with an air vent.

In addition, the ventilation device comprises a fan, such as a fan or a radial impeller, for conveying the air through the ironing surface, through the condensation grille and through the bottom opening. In this case, the fan may have a motor, such as an electric motor, or it may be connectable to a drive.

According to a further embodiment, the ironing cover has an upper cover made of an air-permeable fabric and a foam pad, such as a silicone foam pad, which is arranged between the upper cover and the perforated plate. The silicone foam padding provides a flat surface for the overlying top cover and avoids direct contact of the top cover with corners and edges of underlying layers.

According to a further embodiment, the condensation grid of the ironing surface has a honeycomb-shaped structure with, for example, round, triangular, quadrangular, pentagonal or hexagonal honeycombs, the hexagons in particular being able to be approximately regular hexagons. In this case, a height extent of the condensation grating may in particular be at least as great as a height extent of the layers of the ironing surface located above it. According to another embodiment, the height extent of the condensation grid is at least 1 cm. Furthermore, the passage openings of the condensation grid in cross-section can make up at least 90% or at least 95% of the area of the condensation grid in order to ensure good transport of the ironing air.

The honeycomb structure acting as an air rectifier can significantly increase the suction power, for example, it can be increased by 10% to 15%. Furthermore, the honeycomb structure may help to keep the temple dry by reducing the surface area of interest.

According to a specific embodiment, the condensation grid comprises aluminum or consists of aluminum. Alternatively, the condensation grid may be, for example, copper, brass, another copper alloy, or stainless steel such as copper. Niro or Nirosta exhibit. Also conceivable are plastics such as PET, PP, PE, PA, PF or similar plastics, which represent a honeycomb structure. By a "similar plastic" is meant in this context that the plastic is suitable to represent a honeycomb structure and has other required properties such as sufficient temperature and material resistance.

The condensation grating can in particular also completely or predominantly from one of consist of the above materials. Furthermore, the condensation grid can also comprise a combination of PET, PP, PE, PA, PF or similar plastics or consist predominantly or completely of such a combination. In addition, the condensation grid can also comprise or consist predominantly or completely of a combination of one or more of the abovementioned plastics and a metal such as aluminum, copper, brass, a copper alloy or stainless steel.

For easier removal of the condensation liquid, the perforated plate can have beads or channels for discharging the condensation liquid. The beads may be inclined and the perforated plate may be inclined to the beads out.

According to a further aspect, the present description discloses an ironing device comprising an ironing board with an at least partially air permeable ironing surface and with a bottom, wherein between the ironing surface and the bottom at least one cavity with a condensation element is provided, and wherein the bottom is an incline to a Has bottom opening.

The slope of the floor is due to an inclination of the floor with respect to the ironing surface, which is set up during operation, especially in an ironing room substantially horizontally.

The ironing device further comprises a ventilation device, which has an air intake chamber, which is connected via the bottom opening with the at least one cavity of the ironing board and via an air duct with an air vent. The ventilation device also includes a fan, such as a fan, for conveying the air through the bottom opening, the fan being disposed at an orifice of the air channel in the air induction chamber. The fan may in particular be drivable with a motor mounted on a frame of the ironing device.

The air intake chamber has an air inlet opening with an inlet switchover flap and a channel wall opening with a channel switchover flap, wherein the inlet switchover flap and the channel switchover flap can each occupy a first position and a second position and are designed such that by simultaneously switching the inlet switchover flap and the channel switchover flap of the each first position in the respective second position, the flow direction of the air in the bottom opening in a reverse direction is reversible.

By switching the flow direction of the air in the bottom opening, the ironing device can be operated both in the suction mode and in the blowing mode.

In the suction mode, the air located outside the ironing device is sucked through the ironing surface into the cavities of the ironing board.

Depending on the operating situation, the sucked-in air or suction air can at least partly contain ambient air in particular above the ironing surface as well as ironing air.

As an ironing air or steam air is called an air with ironing steam, which is used during a pressing operation in particular for conditioning an ironing material.

The ironing air may have been generated for example in a steam generator of a steam iron used for ironing.

One distinguishes between the ironing above the ironing surface and the sucked ironing air below the ironing surface, which is also referred to as extracted ironing air.

In the blowing mode, the air located in the cavities of the ironing board is blown out through the ironing surface to the outside or into the ironing room.

When flowing through the ambient air in the suction or blowing mode through the cavities of the ironing board, the condensation element is cooled in the at least one cavity of the ironing board by the ambient air. In particular, the condensation element can be cooled by the ambient air to room temperature.

The ironing air, in particular the extracted ironing air, can contact at least one cavity of the ironing board with the cooled condensation element and thereby cool, which can lead to the condensation of the moisture contained in the ironing air.

The condensate formed in the condensation of the ironing air can be reflected on the condensation element or at the bottom of the ironing board. With a sufficient accumulation of condensate on the inner surface of the soil and due to slope or by the slope of the soil, the condensate can flow over the inner surface of the soil towards the bottom opening. Thus, the extracted ironing air can be dehumidified or steam extracted from the ironing air, which can be discharged in the form of condensate through the bottom opening down.

The condensation element may be formed by the bottom in particular by an inner surface of the bottom. The condensation element can also be formed by a separate heat sink located in the least one cavity of the ironing board.

The possibility of switching between the suction mode and the blowing mode enables the advantages of these two operating modes to be used flexibly as required. In particular, the ironing device can be operated for a rapid dehumidification or cooling of the ironing air in the suction mode with a high ventilation rate. For example, while the blow mode may be used to smooth an ironing fabric at a lower ventilation rate to prevent or reduce the repulsion of the condensate accumulated on the condensation element or on the floor in the ironing material or in the ironing board cover.

Together with the condensate also from the ironing steam deposited on the ground and flushed from the condensate toxins, especially residues of chemical processing or cleaning agents can be derived down so that a dehumidified and detoxified air can be dissipated in the air outlet. In particular, the inner surface of the bottom provided with the condensed water can function as an air scrubber, which can also trap pollutants in the form of particles from the ironing air.

Through the bottom opening can thus be carried out in a simple manner, both the removal of the condensate formed in the cavity and the withdrawal of the cooled and dehumidified air.

The condensation element and / or the bottom of the ironing board may be formed in the form of a flat heat exchanger.

In particular, the condensation element and / or the bottom of the ironing board may have cooling ribs which project into the at least one cavity.

By the cooling fins, the heat exchange between the soil and the air in the at least one cavity can be improved, whereby the extracted ironing air can be better cooled or better dehumidified.

The ironing board can in particular be elongated and the cooling fins of the floor can be arranged along the ironing board or parallel to the longitudinal direction of the ironing board.

The arrangement of the cooling fins parallel to the longitudinal direction, the condensate can flow unhindered along the cooling fins to the bottom opening.

The cooling fins can also increase the total condensation area, so that the overall efficiency of the air cooling or dehumidification and air purification can be increased.

In the bottom opening, an adjustable rotary flap can be provided. With the adjustable rotary flap, the passage capacity or the passage cross-section of the bottom opening can be adjusted, so that the ventilation rate can be adjusted or regulated by the bottom opening or by the ironing surface.

In particular, with the adjustable rotary flap in the bottom opening, the ventilation rate in the blowing mode can be throttled so that the condensate accumulated in the cavities, in particular on the inner surface of the floor, is not blown into the ironing surface.

The ironing surface can be formed by the surface of an air-permeable ironing cover spanned by a ironing grid, the ironing grid having a plurality of grid openings. The grid openings can in particular be distributed uniformly over the surface of the bracket grid.

The at least one cavity may include cavities separated by partitions.

The partitions increase the mechanical stability of the ironing board.

The partitions may have passage openings.

Through the passage openings in the partitions, the ironing air can flow through unhindered through the cavities.

The ironing board can be elongated and the partitions can be arranged substantially along the longitudinal direction of the ironing board.

The orientation of the partitions along the longitudinal direction of the ironing board lessens the guttering of the condensate beyond the bottom towards the bottom opening by the dividing walls.

The bottom of the ironing board may have a slope of 5 ° to 20 ° with respect to a horizontal plane toward the bottom opening.

The slope of the soil in this angular range is suitable for reliably dissipating the condensate that arises in the direction of the bottom opening.

Below the bottom opening may be provided a collecting container or a collecting basin, in particular with a funnel and with a drain pipe.

The collecting container can thus be accommodated to save space in the ironing device.

The collecting container may be connected to a steam recycling plant.

By connecting the sump to the steam recycling plant, the condensate collected in the sump can be routed to the steam recycling plant where the condensate can be recycled for repeated use.

The air outlet can be designed so that the air drawn off through the air outlet at least partially to the outside of the building in which the ironing room is located, can be removed.

By discharging the extracted air to the outside of the ironing room - especially on the outside of the building to the outside of the building, the air in the interior of the building can be relieved of ironing vapors.

The ironing board may have at least one cooling channel for a fluid coolant, wherein the at least one cooling channel is connected to a cooling circuit for cooling the air present in the at least one cavity.

By connecting the cooling duct to the cooling circuit, the air present in the at least one cavity of the ironing board, in particular the extracted ironing air, can be cooled better, which can lead to condensation of the steam present in the ironing air and improved dehumidification of the ironing air in the cavity.

The at least one cooling channel may be at least partially disposed on and / or in the ground.

The arrangement of the at least one cooling channel on and / or in the bottom of the bottom of the ironing board can be cooled so that the soil can also serve as a condensation surface, whereby the efficiency of the dehumidification can be increased.

The ironing board may have a particular separate heat sink, wherein the at least one cooling channel extends at least partially through the heat sink.

Through the heat sink, the cooling efficiency of the ironing air can be further increased. In addition, the separate heat sink can be installed in an existing ironing board, so that an existing ironing device can be retrofitted.

The ironing device may further comprise a heat exchanger, which allows heat exchange between the exhaust air discharged from the ironing device through the air outlet and the outside air, in particular the air flowing into the building from outside the building.

At low outdoor temperatures, the exhaust air is further cooled as it passes through the heat exchanger, so that it can be further dehumidified. By cooling the exhaust air in the heat exchanger, the cooling circuit can be relieved. In particular, the compressor in the cooling circuit can be switched on only when needed.

The heat exchanger can be designed so that the condensate generated during cooling of the exhaust air in the heat exchanger can be discharged to the outside.

By discharging the condensate to the outside of the sump or the drain pipe can be relieved. In particular, this may be unnecessary for the use of the collection container.

The air outlet can have an air outlet through which the withdrawn air can be at least partially added to the ironing room.

The dehumidified and detoxified air can thus be recycled for the ironing room.

The ironing grid can also have cooling ribs, which are formed in conformity with the cooling ribs of the bottom, such that the cooling ribs of the bottom and the cooling ribs of the ironing mesh mesh in a comb-shaped cross section in a vertical cross section to the longitudinal direction of the ironing board.

The fact that the cooling fins of the floor and the cooling fins of the ironing mesh mesh comb-shaped, the efficiency of the cooling of the ironing air can be increased. In addition, the comb-shaped intermeshing fins, when fogged by the condensate, can function as an efficient air scrubber.

The refrigeration cycle may include a compressor, particularly a refrigerant compressor having an input and an output, an expansion valve having an input and an output, and a condenser, the input of the compressor having one end of the refrigeration channel and the output of the expansion valve having the other end the cooling channel is connected.

Thus, before entering the cooling channel, the coolant must pass through the expansion valve. This relaxes the coolant, which cools the coolant. By changing the speed of the compressor, the cooling capacity of the cooling circuit can be controlled easily.

The cooling circuit can be designed in the form of a split system, in which the capacitor is arranged outside the ironing room or outside the building with the ironing room. Due to the design of the cooling circuit as a split system, the heat in the ironing room can be reduced, which can facilitate a temperature control of the ironing room.

Due to the large number of grid openings, the intake air can easily reach the cavity present in the ironing board. Due to the uniform distribution of the grid openings, the air can be sucked through the entire ironing surface equally.

Laterally on the air intake chamber, a lateral air inlet opening may be provided.

Through the lateral air inlet opening of the air intake chamber, the room air is drawn during the air extraction by the air extraction device, so that the room air can be mixed with the attracted from the at least one cavity of the ironing board strap air. As a result, a substantially independent of a cover of the ironing surface basic utilization of the ventilation device can be ensured, which can lead to a uniform pump utilization of the ventilation device. At the same time, the vapor concentration and the temperature are further reduced, thereby sparing components of the ventilation devices. In particular, this avoids that the components of the ventilation device are exposed to the highly concentrated vapors.

The air intake chamber may be connected to the air exhaust via an air passage, wherein at the mouth of the air passage in the air intake chamber, a radial fan wheel for driving the air from the air intake chamber is provided in the air passage. In particular, the radial fan may be connected axially via a drive shaft with an electric drive motor.

By changing the speed of the fan, the air extraction capacity can be easily controlled.

By restricting the air temperature in this area, the ironing air can be cooled particularly efficiently. In particular, in the exemplary embodiment with the cooling circuit, a collapse of the cooling efficiency and ice formation at low temperatures can be reduced.

The ironing device may comprise a sensor system for detecting at least one air parameter in the at least one cavity of the ironing board and a control unit, wherein the control unit is configured such that it can control the operation of the ironing device in dependence on the at least one air parameter detected by the sensor system.

The control of the ventilation device can be done in particular via the setting of the rotary flap and the changeover. In addition, the control unit can be configured to adjust the rate of rotation of the motor.

The sensor system may include a temperature sensor and a humidity sensor.

In particular, the ironing apparatus may comprise a user interface for detecting user control inputs, and the control unit may be further configured to control the ironing apparatus in response to the user control inputs.

In particular, the control unit may comprise a processor, an input interface for passing on the data acquired by the sensor system or the user control inputs to the processor, a memory unit for storing the data and an output interface for outputting control signals for controlling the ironing device.

By controlling the ironing device in dependence on the at least one air parameter, the cooling or the dehumidification of the ironing air can be carried out in a controlled manner.

The cooling temperature of the air can be in a range between about 15 ° C and about 40 ° C, in particular between about 16 ° C and about 25 ° C.

• - Lüften der Bügelvorrichtung mit einer einstellbaren Lüftungsrate in einem Saugmodus,
• - Lüften der Bügelvorrichtung mit einer einstellbaren Lüftungsrate in einem Blasmodus,
• - Umschalten der Bügelvorrichtung zwischen dem Blasmodus und Saugmodus;

According to a second aspect, there is provided an air dehumidifying method for an ironing apparatus, the method comprising the steps of:

• - Ventilating the ironing device with an adjustable ventilation rate in a suction mode,
• Ventilating the ironing device with an adjustable ventilation rate in a blowing mode,
• - Switching the ironing device between the blowing mode and suction mode;

In this case, the ventilation of the ironing device can take place in a suction or blowing mode, in particular after a previous ironing operation.

Both in the suction mode and in the blowing mode, the air flows through the cavities of the ironing board, where it cools down. The condensate generated when cooling the air settles on the floor, so that the air is dehumidified accordingly.

Switching between the suction mode and the blowing mode allows the ironing apparatus to be operated in suction or blowing mode as needed. In particular, after an ironing process, first the ironing air humidity in the suction mode can be reduced, in order then to drive the ironing device in the blowing mode, in particular for smoothing the ironing material with reduced ironing humidity.

The method may comprise detecting at least one current air parameter, wherein the switching between the blowing mode and the suction mode is effected in dependence on the detected at least one current air parameter.

The at least one air parameter may include the air temperature and / or the humidity.

In particular, the switching from the suction mode to the blowing mode can take place when the air temperature or humidity has cooled down to a predetermined value.

The method may include adjusting the ventilation rate, in particular by adjusting the rotary damper, in response to the detected at least one current air parameter.

The method may also include actively cooling the strap air and adjusting the cooling rate in response to the detected at least one current air parameter.

By adjusting the ventilation rate or the cooling rate, the cooling or dehumidification of the ironing air can be carried out in a controlled manner.

The ventilation rate or the cooling rate can in particular be adjusted such that the at least one air parameter remains within a predetermined value range during operation of the ironing device.

By limiting the at least one air parameter, a reliable operation of the ironing device can be ensured. In particular, by limiting the air temperature from below, a collapse of the cooling efficiency and ice formation at low temperatures can be avoided.

• 1 zeigt schematisch eine Bügelvorrichtung gemäß einem Ausführungsbeispiel;
• 2 zeigt schematisch eine Bügelvorrichtung gemäß einem weiteren Ausführungsbeispiel
• 3 zeigt eine Detailansicht der Bügelvorrichtung gemäß 1 in einem ersten Betriebsmodus.
• 4 zeigt eine Detailansicht der Bügelvorrichtung gemäß 1 in einem zweiten Betriebsmodus.
• 5 zeigt einen vertikalen Querschnitt durch das Bügelbrett gemäß einem Ausführungsbeispiel;
• 6 zeigt einen vertikalen Querschnitt durch das Bügelbrett gemäß einem anderen Ausführungsbeispiel;
• 7 zeigt einen vertikalen Querschnitt durch das Bügelbrett gemäß einem weiteren Ausführungsbeispiel;
• 8 zeigt einen vertikalen Querschnitt durch das Bügelbrett gemäß einem weiteren Ausführungsbeispiel;
• 9 zeigt einen vertikalen Querschnitt durch das Bügelbrett gemäß einem anderen Ausführungsbeispiel;
• 10 zeigt einen vertikalen Querschnitt durch das Bügelbrett gemäß einem weiteren anderen Ausführungsbeispiel;
• 11 zeigt ein Blockdiagramm eines elektrischen Steuersystems gemäß einem Ausführungsbeispiel;
• 12 zeigt einen Querschnitt durch einen mehrlagigen Aufbau eines Bügelbretts gemäß einem weiteren Ausführungsbeispiel; und
• 13 zeigt einen Aufriss des mehrlagigen Aufbaus von 12.

Embodiments will be explained in more detail with reference to the drawing.

• 1 schematically shows an ironing apparatus according to an embodiment;
• 2 schematically shows an ironing device according to another embodiment
• 3 shows a detailed view of the ironing device according to 1 in a first mode of operation.
• 4 shows a detailed view of the ironing device according to 1 in a second mode of operation.
• 5 shows a vertical cross section through the ironing board according to an embodiment;
• 6 shows a vertical cross section through the ironing board according to another embodiment;
• 7 shows a vertical cross section through the ironing board according to another embodiment;
• 8th shows a vertical cross section through the ironing board according to another embodiment;
• 9 shows a vertical cross section through the ironing board according to another embodiment;
• 10 shows a vertical cross section through the ironing board according to a further other embodiment;
• 11 shows a block diagram of an electrical control system according to an embodiment;
• 12 shows a cross section through a multilayer structure of an ironing board according to another embodiment; and
• 13 shows an elevation of the multilayer structure of 12 ,

1 schematically shows an ironing apparatus according to an embodiment. The ironing device 1 includes a frame 5 with a frame body 6 and with frame feet 7 on which an ironing board 10 and a ventilation device 15 is mounted.

The ironing board 10 has an air permeable ironing surface 20 and a floor 25 on, being between the ironing surface 20 and the floor 25 through partitions 30 , 30 'separate cavities 35 , 35 ', 35 "are provided 30 , 30 'have through holes (not shown) that contain the cavities 35 , 35 ', 35 "in the ironing board.

The ventilation device 15 includes an air extraction chamber 40 , an air outlet 45 and an air pumping device 50 with a motor 55 and with a fan 60 , The air intake chamber 40 is over an air duct 65 with the air outlet 45 connected. Laterally at the air intake chamber 40 is an air inlet opening 41 intended. The ventilation device 15 is with one of the cavities 35 " of the ironing board 10 over a bottom opening 66 in the floor 25 of the ironing board 10 connected. The floor 25 has a slope with respect to a horizontal plane to the bottom opening 66 towards. The fan wheel 60 is a radial fan wheel which is axially connected to the engine via a fan shaft (not shown).

The ironing device 1 also has a filing board 67 on, the on the rack body 6 of the frame 5 is mounted and located below the ironing board 10 About halfway up to the ironing board 10 located. At the frame feet 7 of the frame are frame wheels 68 . 68 ' arranged.

The directional arrows 150 illustrate a possible flow direction of the air during the operation of the ironing device 1 , In the 1 illustrated flow direction corresponds to the so-called suction mode.

Powered by the engine 55 becomes the fan wheel 60 offset in an axial rotational movement. At the same time the air gets from blades 69 of the fan wheel 60 over the air duct 65 in the air outlet 45 promoted. At the same time, the air through the suction port 66 from the cavities 35 . 35 . 35 " of the ironing board 10 in the suction chamber 40 sucked. The ironing board 10 is designed so that the room air through the ironing surface 20 in the cavities 35 . 35 ' . 35 " of the ironing board 10 can get. The Raumlauft is by ironing surface 20 over the cavities 35 , 35 ', 35 "and through the bottom opening 66 through to the air extraction chamber 40 and then over the air duct 65 led into the air vent 45.

Thus, the ironing steam is combined with the ironing surface 20 sucked air from the plant or from the immediate vicinity of the ironing device of the ironing surface 20 sucked in and over the air outlet 45 dissipated.

2 schematically shows an ironing device according to another embodiment. The ironing device of 2 essentially corresponds to the ironing device of Fig. 1, the same or equivalent parts are assigned the same reference numerals.

In contrast to the embodiment of the 1 has the ironing device of 2 a cooling circuit 100 on which a pump 105 , an expansion valve 110 , a capacitor 115 as well as cooling pipes 120 . 120 ' and 105 'comprising the cooling circuit 100 with the ironing board 10 connect. In particular, the cooling lines 120 . 120 ' with cooling channels (not shown) in the bottom 25 the ironing board 10 connected. The capacitor 115 has a fan 125 and a cooling circuit with several turns 130 for cooling the coolant.

The compressor 105 it's going on in the cooling circuit 100 located coolant through the cooling circuit 100 in the direction shown by the small arrows. The coolant driven by the compressor 105 is in the turns 130 Cooling distance of the condenser from the fan 125 cooled. From the condenser 115 the coolant passes through the expansion valve 110 through to the ground 25 of the ironing board 10 , Passing the expansion valve 110 the coolant relaxes and cools down so that the cooled coolant passes through the cooling channels of the bottom 25 of the ironing board 10 is passed. Due to the heat transfer, the coolant located in the cooling channels heats up, causing the bottom 25 of the ironing board 10 cools. By contact with the ground 25 The air also cools in the cavities 35 . 35 ' , 35 "of the ironing board, thus functioning the floor 25 as a heat sink to cool the through the ironing surface 20 of the ironing board 10 flowing air.

When cooling the through the ironing surface 20 retracted air, the existing in the retracted air steam condenses in the form of condensate on the inner surface of the soil 25 low. With a sufficient accumulation of condensate on the inner surface of the soil 25 and due to the inclination of the soil 25 The condensate begins over the inner surface of the bottom 25 to the lowest lying cavity 35 " to run. About the bottom opening 66 the condensate can be discharged to a collector or to a reservoir.

3 shows a detailed view of the ironing device according to 1 in a first mode of operation.

In the detail view of the 3 are further details of the ironing device 1 in the area of the air intake chamber 40 recognizable. At the bottom opening 66 is one around a rotating shaft 70 rotatably mounted rotary flap 71 intended. With the rotary flap 71 can the passage capacity or the passage cross-section of the bottom opening 66 be set.

The air intake chamber 40 has a front opening 72 and a rear opening 73 on. The front opening 72 the air intake chamber 40 is in the area between the filing board 67 and the soil 25 of the ironing board 10 intended. The front opening 72 connects the air intake chamber 40 with the ambient air of the ironing room. At the front opening 72 is one around a rotating shaft 75 rotatably mounted rotary flap 76 arranged. With the rotary flap 76 can the passage capacity or the passage cross-section of the front opening 72 be set.

The rear opening 73 is between the air intake chamber 40 and the withdrawal channel 65 intended. At the rear opening 73 is one around a rotating shaft 79 rotatably mounted rotary flap 80 arranged. With the rotary flap 80 can transmissivity or passage cross section of the rear opening 73 be set.

In the in 3 The constellation shown are the front and the rear openings 72 and 73 with the flaps 76 and 80 closed.

In the in 3 shown operating mode, that transported by the engine 55 driven fan wheel (not shown), the air from the air intake chamber 40 over the air duct 65 in the air outlet 45 ,

At the same time, the air is released from the cavity 35 " of the ironing board 10 in the air intake chamber 40 sucked.

The broad black arrows illustrate the flow direction of the air. This operating mode corresponds to the so-called suction mode, in which the ambient air through the ironing surface into the cavities 35 . 35 ' . 35 " of the ironing board 10 is sucked.

The rotary flap 71 in the bottom opening 66 is maximally open, allowing the air through the bottom opening 66 can flow largely unhindered. At this position of the rotary valves 71 . 76 and 80 the maximum or 100% suction power is achieved. The suction power can with the position of the rotary valve 71 be set. For example, the transmittance or the effective opening cross section of the bottom opening 66 by adjusting the angle of rotation of the rotary flap 66 be set.

4 shows a detailed view of the ironing device according to 3 in a second other operating mode.

In the in 4 shown operating mode are the rotary valves 76 and 80 open, allowing the air through the front opening 72 and the rear opening 73 can flow. The flow direction of the air is represented by wide black arrows. The ambient air is through the front opening 72 sucked into the air intake chamber. It is characterized by the flat closing body of the rotary valve 76 in the air duct or exhaust duct 65 diverted. The flat closing body of the rotary flap 80 locks the air vent, allowing the air back into the air intake chamber 40 and over the bottom opening 66 in the cavity 35 " of the ironing board 10 is forwarded. Out of the cavity 35 " the air is blown outwards via the ironing surface (not shown).

The in 4 shown operating mode corresponds to the so-called blowing mode, in which the air from the cavities 35 . 35 ' , 35 "of the ironing board 10 is blown out through the ironing surface to the outside.

The blowing power can also be adjusted by adjusting the rotary flap 71 be set. The rotary flap 71 in the bottom opening 66 is maximally open, allowing the air through the bottom opening 66 can flow largely unhindered. In the case of the rotary flap position shown, the maximum or 100% blowing power of the ironing device can be achieved.

The blowing power can be between 0 and 100% by a corresponding adjustment of the rotary flap 71 be set.

Thus, by an adjustment of the rotary valves 71 . 76 and 80 between the suction and blowing operation of the ironing apparatus 1 be easily switched.

The switching between these operating modes of the ironing device 1 Can be used for cooling the heat exchanger in the ironing board 10 be used.

The blowing power can be particularly with the setting of the rotary valve 71 be set so that in the cavities 35 . 35 ' . 35 " accumulated condensate is not blown into the ironing cover and makes it wet.

5 shows a vertical cross section through the ironing board according to an embodiment.

As in 1 indicated, lies in 2 illustrated vertical cross section perpendicular to the longitudinal direction of the ironing board 10 , The ironing surface 20 is formed by an ironing cover 200, which is a strap grid 205 of the ironing board 10 spans. The cavity 35 ' is located between the ironing grid 205 and the soil 25 of the ironing board 10 , The ironing cover 200 has an air-permeable textile material. In the ironing grid 205 are grid openings 210 intended. The bottom 25 of the ironing board 10 has a good heat conducting material. In this example, the bottom is 25 made of an aluminum alloy or steel, copper, or plastic. In another embodiment, the bottom is formed of steel. The wide arrows 150 respectively. 150 ' show the air flow direction in the suction or blowing operation of the ironing device.

During operation of the ironing device 1 in the suction mode, the room air passes through the air-permeable textile material of the ironing cover 200 and through the grid openings 210 of the ironing lattice 205 through into the cavity 35 ' of the ironing board 10. From the cavity 35 ' gets the air over the cavity 35 " (see. 1 ) through the bottom opening 66 in the air extraction chamber 40 or suction chamber and over the air duct 65 in the air outlet 45 forwarded.

During operation of the ironing device 1 in blowing mode, on the other hand, the air gets out of the cavity 35 ' through the air-permeable material of the ironing cover 200 blown out through it.

6 shows a vertical cross section through the ironing board according to another embodiment.

The ironing board 10 ' of the 6 is similar to the ironing board 5 built up. In contrast to the embodiment of 3 points the ground 25 ' cooling fins 225 on that in the cavity 35 ' protrude. The cooling fins 225 increase the contact surface and thus improve the heat exchange between the ground 25 ' and the air inside the cavity 35 ' , The cooling fins 225 are arranged along the longitudinal direction of the ironing board 10 'to the air flow or the guttering of the condensate to the ground 25 ' along to the bottom opening 66 not prevent.

7 , shows a vertical cross section through the ironing board according to another embodiment.

In this embodiment, on the inside of the bottom 25 "is a cooling channel 220 arranged, whose two cross sections in 7 you can see. The cooling channel 220 has a good heat conducting material. In this example, the cooling duct comprises an aluminum alloy. The cooling duct is with a solder 221 soldered to the floor 25 "and with the in 2 connected cooling circuit connected. In operation, the coolant from the compressor 105 driven through the cooling circuit. The cooled after passing through the expansion valve coolant is through the cooling line 120 ' By cooling the bottom 25 ", the cooling of the air present in the cavity can be accelerated, which can accelerate the condensation of the vapor present in the air. In particular, the air is through contact with the ground 25 of the ironing board 10 "after entering the cavity 35 ' cooled, with the vapor condensing on the cold inner surface of the bottom 25 "The condensate formed from the air collects on the cold inner surface of the bottom 25". With a sufficient accumulation of condensate on the inner surface of the soil 25 and due to the inclination of the soil 25 the condensate runs or runs over the inner surface of the floor 25 to the lowest lying cavity 35 " out.

8th shows a vertical cross section through an ironing board according to another embodiment.

The vertical section of the 8th is also perpendicular to the longitudinal direction of the ironing board 10 "' , The embodiment of the 3 corresponds substantially to the embodiment of the 7 , where the cooling channel 220 in contrast to the embodiment of 7 in the ground 25 ' is embedded. The cross section of the cooling channel 220 is in 3 as two circles in the ground 25 '' to see. By embedding the cooling channel 220 in the bottom, the heat exchange between the through the cooling duct 220 flowing coolant and the floor 25 '' improved, whereby the efficiency of the cooling can be increased.

9 shows a vertical cross section through an ironing board according to another embodiment. This embodiment substantially corresponds to the embodiment of FIG 8th where the bottom is cooling fins 225 similar to the embodiment of the 6 having.

10 shows a vertical cross section through an ironing board according to another embodiment.

In this embodiment, the ironing board 10 ^v a separate heat sink 300 on, between the ironing grid 205 and the floor 25 ^v is arranged. In the present specification, superscript Roman numerals IV, V, VI, etc., are used as an abbreviation and for better discrimination instead of four or more apostrophes. An area specification like 10 '- 10 ^v refers to the elements 10 ' . 10 '' . 10 ''' . 10 ^IV and 10 ^V in this area.

The heat sink 300 has a cooling channel 220 on, in cross-section as two circles in the body 300 you can see. The heat sink 300 further includes a plurality of cooling fins 225 ' on. The heat sink 300 is spaced from the ground 25 ^v and from the ironing grid 205 arranged so that the air both below and above the heat sink 300 can flow. The cooling fins 225 ' are on both the bottom and top surfaces of the heat sink 300 intended. The cooling fins 225 ' are along the longitudinal direction of the ironing board 10 '' arranged.

During operation of the ironing device flows through the ironing surface 20 sucked air along the cooling fins 225 ' on both sides of the heat sink 300 , During this process, the air cools and as the vapor in the air cools, the condensate forms on the heat sink 300 or on the inner surface of the soil 25 ^v of the ironing board 10 ^v reflected. With a sufficient accumulation of condensate on the inner surface of the soil 25 ^v and due to the inclination of the soil 25 ^V, the condensate flows over the inner surface of the soil 25 ^v to the lowest lying cavity 35 " out. About the bottom opening 66 the condensate can be discharged to the collector.

6 shows a block diagram of an electrical control system of the ironing apparatus according to an embodiment.

The block diagram 400 includes a control unit 401 and a sensor 405 connected to the control unit 401 electrically connected. Furthermore, the control system has a user interface 406 on.

The control unit 401 includes a processor 410 , a storage unit and an input interface 430 which is the control unit 401 with the sensors 405 connect as well as an output interface 431 for outputting control signals for controlling the ironing device.

The control signals may in particular comprise control signals for controlling the adjustable rotary flap, the changeover flaps, the engine and the compressor.

During operation of the ironing device 1 be the data collected by the sensor 405 data via the interface 430 to the processor 410 forward for evaluation. The processor 410 evaluates the sensors 405 captured data and outputs control data to the interface 430 for controlling the engine 55 and the compressor 105 out.

By controlling the engine 55 and the compressor 105 in particular, the suction rate of the ventilation device 15 and the cooling capacity of the cooling circuit 100 be managed.

In one embodiment, the control unit is 401 configured so that the temperature and the humidity of the air within the ironing device are each kept within predetermined limits.

This can be prevented inter alia that due to excessive cooling in the air tract of the ironing device, in particular in the least one cavity or on the cooling fins, ice is formed.

In addition, by limiting the temperature of the air within the ironing device, the air temperature boiling points of toxic fumes can be adjusted so that the toxic vapors can be rinsed off with the condensate.

The 12 and 13 show a multilayer structure of an ironing board 10 ^(VI) according to another embodiment. According to the multilayer structure is an upper wall 205 of the cavity 35 , which faces an ironed, as a perforated plate 205 educated. This upper wall 205 is also called ironing 205 designated.

To the perforated plate 205 joins up a honeycomb 208 made of aluminum. To the honeycomb grid 208 made of aluminum close up a layer of silicone foam 207 and a top cover 206 made of tissue. The layer of silicone foam 207 which also acts as a silicone foam pad 207 is called, and the upper cover 206 made of fabric together form an ironing cover 200 ,

The silicone foam pad 207 and the top cover 206 are vapor and air permeable. For this purpose, they have sufficiently large pores or openings. Between the bracket cover 200 and the perforated plate 205 a grid may be arranged, wherein the grid may be formed in particular of grid fibers or bars arranged at right angles to each other. This grid can serve inter alia, a coating of the perforated plate 205 from scratching through the side edges of the honeycomb lattice 208 to protect.

In the 13 the upper layers of the multilayer structure are only partially shown or broken away, so that the underlying layers are better visible.

The ironing cover 200 in the aforementioned embodiments, as in the embodiment of 12 and 13 , Also be double-layered and he can in particular a layer of silicone foam 207 and a top cover 206 exhibit. The top cover 206 may be made of natural fiber, carbon fiber or a mixture of different materials instead of synthetic fiber, for example. The condensation grid can be made of aluminum, steel, copper or the plastics PET, PP, PE, PA, PF or similar materials.

During operation of the ironing board 10 ^(VI) , either ironing air passes through the top cover 206 , the silicone foam pad 207 , the aluminum honeycomb grid 208 and the perforated plate 205 sucked in from the environment or it gets air through the perforated plate 205 , the aluminum honeycomb grid 208 , the silicone foam pad 207 and the top cover 206 blown into the environment. The ironing air is typically a mixture of oxygen, nitrogen, water and fabric fibers and dust created by the ironing process.

The aluminum honeycomb grid 208 acts as a condensation grid. The condensation grid has a large passage area and has a large surface area and a high thermal conductivity transverse to the flow direction and parallel to the ironing surface. The honeycombs of the condensation screen are bounded by side surfaces having a height dimension along the flow direction, whereby the ironing air sweeps along the side surfaces for a sufficiently long time to be cooled by the side surfaces.

In general, the condensation grid may have passage openings that are separated from one another by intermediate walls, wherein the passage openings are preferably honeycomb-shaped, but may also have, for example, a circular or square cross-section. In this case, the passage openings occupy a large part of the cross-sectional area, preferably 90 or more percent, so that the flow resistance of the condensation grid is as low as possible.

In particular, when just not ironed but only sucked or blown, the ambient air efficiently cools the condensation grid to the ambient temperature. The air that flows through the grid is dried to the humidity of the ambient air. It has been found that a structure of e.g. hexagonal honeycomb allows good cooling and drying. During ironing, the condensation grille is only partially heated in the area of the iron. The resulting heat of ironing can be first distributed over the intermediate walls of the condensation grating on the surrounding surface of the condensation grating and discharged from there efficiently to the air flowing through the condensate sationsgitter.

The ironing board may also have two or more condensation elements in combination, one of which may be provided by the above-mentioned condensation grid. A honeycomb structure can also be used at other points in the ironing board in the course of the flow, for example to rectify the flow or to provide further condensation surfaces. For example, a honeycomb structure may be arranged in the area of a blower unit or in a downwash chimney of the ironing board.

The perforated plate may have beads or grooves, which serve to dissipate condensed ironing fluid. The surface of the perforated plate and / or the beads may be inclined relative to a horizontal in order to allow easier drainage of the liquid. Likewise, the bottom, which is opposite to the perforated plate, have corresponding beads or grooves.

LIST OF REFERENCE NUMBERS

1

Ironing device

5

frame

6

rack body

7

frame foot

10, 10 ', 10'',10''', 10 ^IV , 10 ^V , 10 ^VI

Ironing board

15

breather

20

ironing surface

25, 25 ', 25'',25''', 25 ^IV , 25 ^V

ground

26

Inside of the floor

30

partition wall

35, 35 ', 35 "

cavity

40

air suction chamber

41

Air inlet opening

45

air exhaust

50

Air pump device

55

engine

60

fan

65

Discharge duct / air duct

66

bottom opening

67

shelf board

68, 68 '

frame wheels

69

shovel

70

rotary shaft

71

butterfly valve

72

Air inlet opening

73

Channel wall opening

75

rotary shaft

76

Einlassumschaltklappe

79

rotary shaft

80

Kanalumschaltklappe

100

cooling circuit

105

compressor

106

Input of the compressor

107

Output of the compressor

110

expansion valve

111

Entrance of the expansion valve

112

Exit of the expansion valve

115

capacitor

120, 120 '

cooling lines

125

fan

130

convolution

150, 150 ', 150' '

directional arrows

200

ironing board cover

205

Ironing grid

206

upper reference

207

Silicone foam pad

208

Aluminum honeycomb lattice

210

grid opening

220

cooling channel

221

solder

225, 225 '

cooling fin

300

heatsink

400

electrical circuit

401

control unit

405

sensors

406

user interface

410

processor

420

storage unit

430

Input interface

431

Output interface

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2006057026 A1 [0002]

Claims (21)

An ironing apparatus comprising: - an ironing board (10-10 ^VI ) having an at least partially air permeable ironing surface (20) and a bottom (25-25 ^V ), between the ironing surface (20) and the bottom (25-25 ^V ) at least a cavity (35, 35 ', 35'') is provided, wherein in the region of the ironing surface (20) a condensation element (26, 208, 300) is provided, wherein the condensation element (26, 208, 300) a condensation grating (208) comprising, between an ironing cover (200) and a perforated plate (205) of the ironing surface (20) is arranged; - A ventilation device (15) comprising an air intake chamber (40) via a bottom opening (66) with the at least one cavity (35, 35 ', 35'') of the ironing board (10 - 10 ^VI ) and via an air duct (65 ) is connected to an air vent (45), and a fan for conveying air through the ironing surface (20), the condensation grille (208) and the bottom opening (66). Ironing device according to Claim 1 wherein the ironing cover (200) comprises an upper cover (206) made of an air-permeable fabric and a foam pad (207), which is arranged between the upper cover (206) and the perforated plate (205). Ironing device according to Claim 1 or Claim 2 wherein the condensation screen (208) has a honeycomb structure. Ironing device according to one of Claims 1 to 3 wherein the condensation screen (208) comprises steel, aluminum, copper or a plastic such as PET, PP, PA, PF or a similar plastic material. Ironing device according to one of Claims 1 to 4 wherein the perforated plate (205) has beads for discharging the condensation liquid. An ironing apparatus according to any one of the preceding claims, wherein the air intake chamber has an air inlet port (72) with an inlet switching flap (76) and a channel wall opening (73) with a channel switching flap (80), and wherein the inlet switching flap (76) and the channel switching flap (80) are each one first position and in each case a second position and are formed such that by simultaneously switching the inlet switching flap (76) and the Kanalumschaltklappe (80) from the respective first position to the second position, the flow direction of the air in the bottom opening (66) is reversible in the opposite direction. Ironing device comprising: - an ironing board (10 - 10 ^VI ) with an at least partially air-permeable ironing surface (20) and a bottom (25-25 ^V ), between the ironing surface and the bottom (25-25 ^V ) at least one cavity ( 35, 35 ', 35 ") is provided with a condensation element (26, 300), and wherein the bottom (25, 25', 25 '') has a slope to a bottom opening (66); - A ventilation device (15) comprising an air intake chamber (40) via the bottom opening with the at least one cavity (35, 35 ', 35'') of the ironing board (10 - 10 ^VI ) and via an air duct (65) with a Air vent (45), and a fan for conveying the air through the bottom opening (66), the fan being disposed at a mouth of the air duct (65) in the air suction chamber (40), and the air suction chamber having an air inlet opening (72). comprising an inlet switching flap (76) and a channel wall opening (73) having a channel switching flap (80), and wherein the inlet switching flap (76) and the channel switching flap (80) are each capable of assuming a first position and a second position, respectively, and being configured such that by simultaneously switching the inlet switching flap (76) and the channel switching flap (80) from the first position to the second position respectively, the flow direction of the air in the Bodenöf (66) is reversible in the opposite direction. Ironing device according to one of the preceding claims, wherein a honeycomb grid for rectifying the air flow in the air path between the ironing surface (20) and the blower is arranged and leads to an increase in the suction power. Ironing device according to one of the preceding claims, wherein the fan comprises a fan wheel (60), wherein the fan wheel (60) at an opening of the air duct (65) in the air intake chamber (40) is arranged. Ironing device according to one of the preceding claims, wherein the bottom (25 - 25 ^V ) of the ironing board (10 - 10 ^VI ) is formed as a planar heat exchanger. Ironing device according to one of the preceding claims, wherein at the bottom opening (66) an adjustable rotary flap (71) is provided. An ironing apparatus according to any one of the preceding claims, wherein the ironing surface (20) is formed by a surface of an air-permeable ironing cover (200) spanned by a yoke (205), and wherein the ironing grille (205) has a plurality of grid openings (210). Ironing device according to one of the preceding claims, wherein the at least one cavity (35, 35 ', 35'') by partition walls (30, 30') separate cavities (35, 35 ', 35''). Ironing device after Claim 13 wherein the partitions (30, 30) have passage openings. Ironing device after Claim 13 or Claim 14 wherein the ironing board (10 - 10 ^VI ) is formed substantially elongated and wherein the partition walls (30, 30) are arranged substantially along the longitudinal direction of the ironing board. Ironing device according to one of the preceding claims, wherein the bottom (25-25 ^V) of the ironing board (10 to 10 ^VI) has a slope of 5 ° to 20 ° to the bottom opening (66). The ironing apparatus according to any one of the preceding claims, wherein the ironing board (10 - 10 ^VI ) has at least one cooling duct (220) for a fluid coolant, and wherein the at least one cooling duct (220) is provided with a cooling circuit (100) for cooling in the at least one Cavity (35, 35 ', 35'') is connected to existing air. Ironing device after Claim 17 wherein the at least one cooling channel (220) is at least partially disposed on and / or in the bottom (25 ", 25 ^IV , 25 ^V ). Ironing device according to one of the preceding claims, wherein the ironing device comprises a sensor (405) for detecting at least one air parameter in the at least one cavity (35, 35 ', 35'') of the ironing board (10 - 10 ^VI ) and a control unit (401) and wherein the control unit (401) is configured such that it can control an operation of the ironing device (1) in dependence on the at least one air parameter detected by the sensor system. Dehumidification process for an ironing device according to one of Claims 1 to 19 comprising: - ventilating the ironing device with an adjustable ventilation rate in a suction mode, - ventilating the ironing device with an adjustable ventilation rate in a blowing mode, - switching the ironing device between the blowing mode and the suction mode. Dehumidification after Claim 20 wherein the method comprises detecting at least one current air parameter, and wherein the switching between the blowing mode and the suction mode is effected in dependence on the detected at least one actual air parameter.

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