• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A clothes dryer, in particular a drum dryer, comprises a drying chamber for receiving objects to be dried, a heat pump with a heat sink and a heat source and a process air duct for guiding process air through the drying chamber, the heat sink and the heat source in a recirculation mode. Furthermore, the dryer comprises an air access (5a) arranged at the process air duct for supplying process air to be dried into the process air duct from a space in which the dryer is arranged, and / or for discharging dried process air from the process air duct into the room in a room air operation , and an air access door (5b) for closing and opening the air access (5a). The dryer has a blocking device (13) arranged in the process air duct for suppressing a circulating air flow during the room air operation by blocking the process air duct.
    公开号:CH712920A2
    申请号:CH01582/17
    申请日:2017-12-20
    公开日:2018-03-15
    发明作者:Kerschdorfer Markus；Hansmann Christoph
    申请人:V Zug Ag；
    IPC主号:
    专利说明:

    Description Field of the Invention The invention relates to a clothes dryer according to the preamble of claim 1, more particularly to a tumble dryer comprising a drying chamber for receiving articles to be dried, a heat pump having a heat sink and a heat source, a process air channel for conveying process air through the drying chamber , the heat sink and the heat source in a recirculation mode. Furthermore, the dryer comprises an air inlet arranged on the process air duct for supplying process air to be dried into the process air duct from a space in which the dryer is arranged, and / or for discharging dried process air from the process air duct into the room in a room air operation. The air access is closed by means of an air access door and obviously.
    Background Dryers having both a drum drying function and a room air function are basically known. By means of these devices, on the one hand in the drum given laundry and on the other hand in the room suspended laundry can be dried. When drying the laundry in the drum is a recirculation mode, as it is known from a classic drum dryer. In the room air function, humid room air is drawn into the dryer, dried and blown out into the room again. Thus, suspended laundry can be dried in the room in which the dryer is installed. Such a dryer combines a classic drum dryer with a classic room dehumidifier.
    In known dryers various concepts are known to perform the process air in the recirculation mode and indoor air operation differently and toggle between these two operating modes.
    It is an object to provide a dryer of the type mentioned, which is structurally simple.
    This object is achieved by the dryer according to claim 1.
    Accordingly, the dryer comprises the following components: - a drying chamber for receiving objects to be dried, - a heat pump with a heat sink and a heat source, - a process air duct for guiding process air through the drying chamber, the heat sink and the heat source in one Recirculation mode, - an air inlet arranged at the process air duct for supplying process air to be dried into the process air duct from a space in which the dryer is arranged, and / or for discharging dried process air from the process air duct into the room in a room air operation, - an air access door for Close and open the air access.
    Furthermore, the dryer has a arranged in the process air duct blocking device, to prevent a recirculating air flow during the room air operation by blocking the process air duct.
    In particular, the air access door and the locking device are two different and / or separately formed locking mechanisms.
    An air access may in particular be a channel which leads room air from the room into the process air duct. In particular, it is also possible for the process air duct to pass directly on the outside of the drier and for the air access to be merely an opening in this case.
    Such a dryer has the advantage that can be switched by means of the air access door and the locking device between the recirculation mode and the room air operation in a simple manner. In this case, the blocking device prevents a recirculation flow in the room air operation, while the closed air access flap prevents a room air flow in recirculation mode.
    Advantageously, the air access door is connectable to the locking device via a mechanical coupling. Coupling allows only either the air access door or the locking device must be operated to switch between recirculation mode and room air operation. Thus, both the locking device and the air access door are changed by a single operation.
    In particular, the coupling is configured such that when opening the air access door, the locking device locks the process air duct, and when closing the air access door, the locking device unlocks the process air duct. The former conversion means a change from recirculation mode to room air mode and the latter change means a change from room air mode to recirculation mode.
    Advantageously, the coupling can be canceled. This means that the contact between the air access door and the locking device can be canceled reversibly, so that, for example, an opening or closing the air access flap has no effect on the open position of the locking device. A cancellation of the coupling is particularly advantageous for the maintenance of the device.
    In a particular embodiment, the air access door can be brought into a closed position, in a first open position and in a second open position, in particular wherein the air access door can be fixed in the closed position and / or in the first open position, in particular wherein the Air access door and the locking device in the closed position and in the first open position are connected to each other via the coupling and are decoupled from each other in the second open position.
    For example, the closed position for the recirculation mode, the first open position for the room air operation and the second open position for a maintenance of the dryer may be provided.
    Advantageously, the coupling is a magnetic coupling. This has the advantage that the decoupling or the coupling can be performed in a particularly simple manner.
    Advantageously, the coupling has a first coupling arm arranged on the air access flap and a second coupling arm arranged on the blocking device, at least one of the coupling arms having a permanent magnet by means of which the coupling arms can be coupled and decoupled from one another.
    Advantageously, the locking device to a biasing device, such that the locking device and / or the first coupling arm in the decoupled state by the biasing device are pivotable in an initial position. Thus, the biasing device gives the first coupling arm in the decoupled state, a defined position, so that the coupling between the first coupling arm and the second coupling arm takes place properly.
    Such coupling occurs, for example, when pivoting the air access door from the second open position to the closed position or when inserting the locking device in the dryer after the locking device has been removed from the dryer for cleaning.
    In a particular embodiment, the air access door is arranged on an outer side, in particular on a front side, of the dryer. In particular, the air access door by hand, especially from outside the device, open and closed.
    The arrangement of the air access flap on the outside of the dryer allows that it is accessible to the user from the outside and thus open by hand and can be closed. This eliminates the need to provide an actuator for opening and closing the air access door in the dryer. If the air access flap is coupled to the blocking device, then another actuator for opening and closing the blocking device is not necessary. The construction can be kept extremely simple.
    Advantageously, the locking device below a closable by means of a door feed opening and / or immediately behind a front surface, in particular within a front wall, is arranged.
    Such an arrangement of the locking device has the advantage that it is easily removable for cleaning out of the dryer and can be coupled by the proximity to the outside of the dryer in a simple manner with the air inlet flap.
    Advantageously, the locking device is by hand, i. without the use of tools, removed from the dryer.
    Furthermore, the locking device can be removed through the feed opening from the dryer.
    In a particular embodiment, the air access door and / or the locking device with an actuator can be opened and closed. This allows an automated switching between the recirculation mode and the room air operation.
    Advantageously, the locking device is arranged on a channel section and can be removed together with the channel section from the dryer. In particular, the channel section adjoins an opening in a door frame of the dryer and can be removed from the dryer through this opening.
    Advantageously, a filter element is arranged in the process air duct such that the process air flow in the room air operation flows through the filter. This can also be prevented in the room air operation that, for example, the heat exchangers are not polluted.
    BRIEF DESCRIPTION OF THE DRAWINGS Further embodiments, advantages and applications of the invention will become apparent from the dependent claims and from the following description with reference to the figures. Showing:
    1 shows a dryer with front view;
    Fig. 2 is a schematic view of the internal structure of the dryer;
    3 shows a close-up view of the charging opening of the dryer with the door open;
    4 shows a section of the process air duct with a locking device in the open position;
    Figure 5 is a section through the dryer with a side view of the open locking device and the ge closed air access door in the coupled position.
    Figure 6 is a section through the dryer with a side view of the closed locking device and the partially open air access door in the coupled position.
    Figure 7 is a section through the dryer with a side view of the open locking device and the ge opened te air access door, the coupling is canceled. and
    Fig. 8 is a section through the dryer with a side view of the closed air access door, wherein the locking device is removed from the dryer.
    1 shows a dryer with a feed opening 2 arranged on the front side 1, which is covered by the door 3. Through the feed opening 2, the user can introduce laundry to be dried into a drum 4 (in Fig. 2) to dry the laundry in a recirculating air mode. Furthermore, the dryer for room air operation on the front side 1 comprises an air inlet 5a to supply moist room air to the dryer and an air outlet 6a to return dried air in the room. The air inlet 5a may be referred to as a first air access and the air outlet 6a as a second air access. The air inlet 5a can be closed and opened with an air inlet flap 5b. The air outlet 6a can be closed and opened with an air outlet flap 6b. The air inlet door 5b may be referred to as a first air access door and the air outlet door 6b may be referred to as a second air access door.
    On the front panel 1 and controls 7 are arranged to control the dryer by the user.
    In Fig. 2, the inner structure of the dryer is shown schematically, wherein the dashed line 8 represents the dryer housing. On the basis of this figure, the two operating modes, the recirculation mode and the room air mode, are explained in more detail.
    When recirculation mode is an already known mode of operation, as it is used in classic circulating air drying equipment. In this process air flows (solid line with arrows) through the drum 4, where it removes moisture absorbed in the drum 4 laundry. In the process, numerous fluff detach from the laundry, which flow out of the drum 4 with the process air flow. After exiting the drum 4, the process air stream flows through a lint filter 9 and then on through a heat sink 10 which extracts heat from the process air stream. The heat sink 10 is e.g. the evaporator of a heat pump. The removal of heat condenses the moisture in the process air stream. The process air is thereby deprived of water and, after being heated in the condenser 11, it can again be conveyed through the drum 4 for the drying of the laundry. The condensate water, which condenses from the cooled process air flow, settles on the surface of the heat exchanger and is collected by a collecting tray. The process air is conveyed by the blower 12.
    The room air operation is used for drying damp laundry suspended in the room. This is the room in which the dryer is installed. The wet laundry releases moisture to the room air, which is sucked through the air inlet 5a of the dryer. In the dryer, the process air flows (dashed line with arrows) as in recirculation mode through the heat sink 10, which extracts heat from the process air flow. The moisture condenses. After heating the process air in the condenser 11 is dried by the air outlet 6 blown back into the room. Depending on the thickness of the blower 12, the process air can only be returned to the room, or the suspended laundry can be blown with sufficient blower power, so that the drying process is accelerated.
    The same dryer thus has two operating modes, on the one hand the recirculation mode and on the other hand the room air operation.
    During recirculation mode, neither humid air should be sucked out of the room, nor dried air should be blown back into the room. The process air flows only within the dryer in the circulation. In indoor air mode, on the other hand, circulating air circulation should be prevented. Dried air is released into the room and must not be sucked in again immediately, or remain in the internal process air circulation. Because this already dried air would be passed through the heat exchanger again, which reduces the efficiency of the dryer.
    To control the process air, the dryer has, as already mentioned, an air inlet flap 5b and an air outlet flap 6b, which close the air inlet 5a and the air outlet 5b in recirculation mode. Furthermore, the dryer has a blocking device 13, which in the present embodiment in the circulating air circuit downstream of the
    Lint filter 9 and in the flow direction in front of the heat sink 10 is arranged. In recirculation mode, the locking device 13 is opened, i. It can flow process air in the circulating air circulation unhindered.
    In indoor air operation, however, blocks the blocking device 13 the process air duct, so that between the drum 4 and heat sink 10 no process air can flow in the recirculation loop. However, the air inlet door 5b and the air outlet door 6b are open in the room air operation, so that humid air can flow back into the room from the room into the dryer and dried air.
    When changing from one operating mode to the other, the air inlet flap 5b, the air outlet flap 6b and the blocking device 13 must therefore be changed over. To simplify this conversion, it is provided that the air inlet flap 5b is coupled to the blocking device 13 via a coupling 14. Thus, a user on the front side 1 only needs to open or close the air inlet door 5b and the locking device 13 is automatically adjusted.
    For example, when the user opens the air inlet door 5b, the coupling 14 closes the locking device 13 automatically. When the user closes the air inlet flap 5b, the coupling 14 automatically opens the blocking device 13 so that the process air in the recirculating air circuit can again flow automatically.
    The concrete implementation will now be illustrated with reference to the following figures. Fig. 3 shows a close-up view of the outside of the dryer. The door 3 is opened, so that the interior of the drum 4 is visible. The process air flows in recirculation mode from the drum rear side 15 into the drum 4 and flows forward into the door 3 in which the lint filter 9 is arranged. After passing through the lint filter 9, the process air flows with the door closed 3 down through the grid 16 in the process air duct.
    4, a process air duct section 17 adjoining the grid 16 is shown. The process air flows from above through the grille 16 and through the process air duct section 17 down. At the bottom of the process air duct section, the locking device 13 is shown. In this case, it is a flap, which is pivoted in Fig. 4 in a vertical position within the process air duct section, so that the process air can flow almost undisturbed in the process air duct. The locking device 13 can be actuated with a first coupling arm 18. By pivoting the first coupling arm 18, the flap of the locking device 13 can be pivoted into a horizontal position, so that the process air duct is blocked and no process air can flow through it.
    5 to 7 show the locking device 13 in a side sectional view, wherein the air inlet flap 5b is visible. In Fig. 5, the dryer is in recirculation mode. The air inlet door 5b closes the air inlet 5a and the locking device 13 is opened, so that the process air flows down from above through the process air duct section 17 and is deflected to the left by the deflector 19 (in the direction of the arrows).
    In Fig. 6, the dryer is in the room air operation. The air inlet flap 5b is open by about 30 ° and the locking device 13 blocks the process air duct. The room air can enter from the room through the air inlet 5a in the process air duct (in the direction of the arrows).
    The dryer thus has an air inlet flap 5b, which is open in the room air mode with an angle less than 90 °, in particular less than 60 °. This has the advantage that the user does not come up with the idea to put something on the not particularly robust designed air inlet flap 5b something.
    In Fig. 7, the dryer is in a maintenance mode. The air inlet flap 5b is opened by 90 °, so that the process air duct is more accessible and can be easily maintained.
    In Figs. 5 and 6, the first coupling arm 18, with which the locking device 13 can be operated, visible. The air inlet flap 5b has a second coupling arm 20 which is coupled to the first coupling arm 18 in the recirculation mode and in the room air mode. The first coupling arm 18 thus forms in connection with the second coupling arm 20, the coupling 14. There is thus a coupling between the locking device 13 and the air inlet flap 5b.
    Since the air inlet door 5b is disposed on the front side of the dryer, the user has the opportunity to open and close them by hand. If, for example, the air inlet flap 5b is closed as shown in FIG. 5 and the user opens it from the outside, the second coupling arm 20 pulls on the first coupling arm 18 so that the blocking device 13 closes, as shown in FIG. If the user now closes the air inlet flap 5b, the second coupling arm 20 pushes the first coupling arm 18 inwards, so that the blocking device 13 opens again and releases the process air channel for recirculated-air operation.
    In the maintenance mode, as shown in Fig. 7, the first coupling arm 18 and the second coupling arm 20 decouple when the user opens the air inlet door 5b even more to prepare the dryer for maintenance.
    If the connection between the first coupling arm 18 and the second coupling arm 20 is released, then the locking device 13 moves back into the open position due to a spring bias. On the first coupling arm 18, a permanent magnet 21 (FIG. 4) is arranged. If the user closes the air inlet flap 5a completely starting from the maintenance position shown in FIG. 7, the first coupling arm 18 and the second coupling arm 20 come into contact again and are coupled via the permanent magnet 21.
    权利要求:
    Claims (14)
    [1]
    In Fig. 8 is a sectional view is shown, in which the locking device 13 and the process air duct section 17 were removed from the dryer. The locking device 13, the process air duct section 17 and the grid 16 can be removed through the feed opening 2 from the dryer. For this purpose, the user engages with his fingers from above in the grid 16 (Fig. 3) and pulls the components upwards. Thus, the locking device can be cleaned in a simple manner. It should also be mentioned that downstream of the blocking device 13 and downstream of the air inlet 5a, a filter element is arranged. This makes it possible for the process air to be filtered even in the room air mode in order to keep the heat exchanger 10, the condenser 11 and the fan 12 free from soiling as much as possible. In particular - It should be noted that the air inlet flap 5b can also be actuated with an actuator 23 (Figure 2). In this case, the user would no longer need to open the air access door 5b to switch between recirculation mode and room air mode, but only press a control button. - It is also conceivable, because a sensor is present, which detects the opening position of the air access door (5b) and / or the locking device (13). A controller converts the operating mode based on this sensor signal. While preferred embodiments of the invention are described in the present application, it is to be understood that the invention is not limited thereto and may be embodied otherwise within the scope of the following claims. 1. tumble dryer, in particular drum dryer, comprising - a drying chamber (4) for receiving objects to be dried, - a heat pump with a heat sink (10) and a heat source (11), - a process air duct for guiding process air through the drying chamber ( 4), the heat sink (10) and the heat source (11) in a circulating air operation, - an air inlet (5a) arranged on the process air duct for supplying process air to be dried into the process air duct from a space in which the dryer is arranged, and / or for discharging dried process air from the process air duct into the room in a room air operation, - an air access flap (5b) for closing and opening the air access (5a), characterized in that the dryer has a blocking device (13) arranged in the process air duct, for blocking one Recirculating air flow during room air operation by blocking the process air duct.
    [2]
    2. Dryer according to claim 1, wherein the air inlet flap (5b) with the locking device (13) via a coupling (14) is connectable, in particular wherein the coupling (14) is designed such that - when opening the air access door (5b), the locking device (13) blocks the process air duct, and - when closing the air access door (5b), the locking device (13) unlocks the process air duct, in particular wherein the coupling (14) can be canceled.
    [3]
    3. A dryer according to claim 2, wherein the coupling (14) is a magnetic coupling.
    [4]
    4. Dryer according to one of claims 2 to 3, wherein the coupling (14) on the locking device (13) arranged first coupling arm (18) and on the air access flap (5b) arranged second coupling arm (20), in particular wherein at least one the coupling arms (18, 20) has a permanent magnet (21), by means of which the coupling arms (18, 20) are mutually coupled and decoupled.
    [5]
    5. A dryer according to claim 4, wherein the locking device (13) comprises a biasing device, such that the locking device (13) and / or the first coupling arm (18) are pivotable in the decoupled state by the biasing device to an initial position.
    [6]
    6. Dryer according to one of the preceding claims, wherein the air access door (5 b) in a closed position, in a first open position and in a second open position can be brought, in particular wherein the air access door (5 b) in the closed position and / or in the in the first open position, in particular wherein the air access door (5b) and the locking device (13) are interconnected in the closed position and the first open position via the coupling (14) and are decoupled from each other in the second open position.
    [7]
    A dryer according to claim 5 and 6, wherein the first coupling arm (18) is arranged in the home position such that upon pivoting the air access door (5b) from the second open position to the closed position, the first coupling arm (18) and the second one Pair the coupling arm (20).
    [8]
    8. Dryer according to one of the preceding claims, wherein in the recirculation mode, the air access door (5b) closed and the locking device (13) is open, and in the room air operation, the air access door (5b) open and the locking device (13) is closed.
    [9]
    9. Dryer according to one of the preceding claims, wherein the air inlet flap (5b) on an outer side, in particular on a front side (1), of the dryer is arranged.
    [10]
    10. Dryer according to one of the preceding claims, wherein the air access flap (5 b) by hand, in particular from outside the dryer, is open and closed, and / or wherein the air access flap (5 b) and / or, the locking device (13) with a Actuator are open and closed.
    [11]
    11. Dryer according to one of the preceding claims, wherein the locking device (13) below a means of a door (3) closable feed opening (2) and / or immediately behind a front surface, in particular within a front wall, is arranged.
    [12]
    12. Dryer according to one of the preceding claims, wherein the locking device (13) can be removed by hand from the dryer, and / or wherein the locking device (13) through the feed opening (2) through the dryer can be removed.
    [13]
    A dryer according to any one of the preceding claims, wherein the locking device (13) is disposed on a channel section (17) and is removable from the dryer together with the channel section (17), and more particularly wherein the channel section (17) abuts an opening in a door frame followed by the dryer and can be removed through this opening from the dryer.
    [14]
    14. Dryer according to one of the preceding claims, wherein in the process air duct, a filter element (22) is arranged such that the process air flow in the room air operation through the filter element (22) flows.
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    同族专利:
    公开号 | 公开日
    CH712920B1|2021-05-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH01582/17A|CH712920B1|2017-12-20|2017-12-20|Clothes dryer.|CH01582/17A| CH712920B1|2017-12-20|2017-12-20|Clothes dryer.|
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