KR20180100751A - Fabric dryer - Google Patents

Abstract

A clothes dryer according to the present invention includes: a drum rotationally installed to accommodate clothes; a drum supporter having a discharge port for supporting the drum and discharging air inside the drum; a circulating flow path for guiding the air discharged through the discharge port back into the drum; and a filter cartridge supported by the drum supporter and drawably inserted into the circulation flow path through the discharge port to filter foreign substances in the air. The filter cartridge includes: at least one spaced protrusion protruding from an outer surface to maintain a constant gap with the circulation flow path; and a guide rib extending upward and downward along the drawing direction of the filter cartridge about the spaced protrusion.

Description

{FABRIC DRYER}

The present invention relates to a clothes dryer, and more particularly, to a clothes dryer having a filter cartridge for filtering out foreign substances in the air.

The clothes dryer is a device for drying clothes by supplying dry air into the drum into which the clothes are put. Such a clothes dryer may be classified into an exhaust type clothes dryer for discharging the air discharged from the drum to the outside of the clothes dryer and a circulating clothes dryer for circulating the air discharged from the drum and re-supplying the air to the drum.

In the case of a cyclic clothes dryer, a filter cartridge may be installed on the circulating flow path to remove foreign substances such as lint and dust from the air discharged from the drum. The filter cartridge is detachably mounted to the clothes dryer, and the user can remove the filter cartridge to remove collected foreign matter.

In addition, a sealing member may be provided between the filter cartridge and the clothes dryer in order to reliably remove foreign substances in the air. That is, the sealing member can prevent the circulating air from flowing into the gap between the filter cartridge and the clothes dryer, thereby improving the foreign matter removing performance.

However, in the process of attaching and detaching the filter cartridge, interference may occur between the filter cartridge and the sealing member. In this case, the clothes dryer may be operated in a state where the sealing member is detached from the clothes dryer and the sealing member is not mounted. There is also a risk that the separate sealing member will be lost.

An object of the present invention is to provide a clothes dryer capable of preventing a sealing member from being detached from a clothes dryer when a filter cartridge is detached or detached, in a clothes dryer including a filter cartridge and a sealing member.

In order to solve the problems of the present invention, a clothes dryer according to exemplary embodiments of the present invention includes a drum rotatably installed to receive clothes, a discharge port for supporting the drum and discharging air inside the drum A drum supporter, a circulation flow path for guiding the air discharged through the discharge port back into the drum, and a filter supported by the drum supporter and inserted into the circulation flow path through the discharge port to filter foreign matter in the air, Cartridge. At this time, the filter cartridge includes at least one spaced projection protruding from the outer surface to maintain a constant gap with the circulation channel, and a guide rib extending up and down along the drawing direction of the filter cartridge about the spacing projection .

In one embodiment, the guide rib may include a first inclined portion extending upward from the spaced-apart projection, the projected height of which gradually decreases, and a second inclined portion extending downward from the spaced-apart projection, And may include an inclined portion.

In one embodiment, the spacing protrusion may include a first spaced projection located on a front surface of the filter cartridge, and a second spaced projection located on a rear surface of the filter cartridge. The guide rib may include a first guide rib formed on the first spacing projection and a second guide rib formed on the second spacing projection.

In one embodiment, the first spacing protrusions may be provided at the bottom left and bottom right of the front face of the filter cartridge, respectively.

In one embodiment, the filter cartridge includes a front frame and a rear frame each having openings, a bottom frame to which the front frame and the rear frame are releasably connected, and a net installed on the opening to collect foreign matter can do.

In one embodiment, the front stopper protrusion and the rear stopper protrusion are protruded from the lower portion of the front frame and the rear frame, respectively, and the filter cartridge is contacted with the front stopper protrusion and the rear stopper protrusion, And a deployment restricting protrusion for restricting a development range of the front frame and the rear frame may be provided.

In one embodiment, the front frame may further include a third guide rib extending upward from the front stopper protrusion along the drawing direction of the filter cartridge.

In one embodiment, the front frame may further include a front reinforcing frame extending vertically to divide the opening, and the third guide rib may extend upwardly on the front reinforcing frame.

In one embodiment, the third guide rib may extend to cover the entire front reinforcing frame.

In one embodiment, the protruding height of the upper end of the third guide rib may gradually decrease toward the upper side.

In one embodiment, the third guide rib may include a pair of ribs extending upwardly from the front stopper projection.

In one embodiment, the rear frame may further include a fourth guide rib extending upward from the rear stopper projection along the drawing direction of the filter cartridge.

In an exemplary embodiment, the rear frame may further include a rear reinforcement frame extending vertically to divide the opening, and the fourth guide rib may extend upward on the rear reinforcement frame.

In one embodiment, the filter cartridge may further include a side frame that is deployably connected to the rear frame. In the rear frame, a side stopper projection protruding from the side frame may be formed to contact the side frame and restrict the range of expansion of the side frame.

In one embodiment, the rear frame may further include a fifth guide rib extending upward and downward along the drawing direction of the filter cartridge about the side stopper projection.

In one embodiment, the fifth guide rib includes a third inclined portion extending upward from the side stopper projection, the protruded height gradually becoming lower, and a third inclined portion extending downward from the side stopper projection, And a fourth inclined portion gradually lowered.

In one embodiment, the side frame includes an open tab coupled to the front frame and interlocked to prevent the side frame from being opened, and at least one rail projecting at the same height as the open tab and extending vertically or laterally .

In one embodiment, the projecting height of the upper end of the rail is gradually lowered toward the upper side, and the height of the lower end of the rail is gradually decreased toward the lower side.

In one embodiment, the filter cartridge includes: an inner filter cartridge inserted into the circulation passage to filter air discharged from the drum; and an inner filter cartridge supported by the drum supporter, And an outer filter cartridge for filtering the air that has passed through the inner filter cartridge.

The clothes dryer according to the exemplary embodiments of the present invention prevents the sealing member from being caught by the protruding components when the filter cartridge is pulled out by forming the guide ribs in each of the protruding components outside the filter cartridge .

1 is a perspective view illustrating a clothes dryer in accordance with exemplary embodiments of the present invention.
Fig. 2 is a view showing the inside of the clothes dryer shown in Fig. 1;
Fig. 3 is a view showing a drum supporter in a state in which the filter cartridge is mounted, and Fig. 4 is a view showing the drum supporter in a state in which the filter cartridge is detached.
Figures 5 and 6 are perspective views showing the filter cartridge.
7 is a perspective view showing an inner filter cartridge.
8 is a view showing a state in which the inner filter cartridge of Fig. 7 is deployed.
9 is a perspective view showing the outer filter cartridge.
10 is a view showing a state in which the outer filter cartridge of Fig. 9 is deployed.
Figs. 11 and 12 are enlarged views showing portions A and B of Fig. 9, respectively.
Figs. 13 and 14 are enlarged views showing portions C and D of Fig. 10, respectively.
Fig. 15 is a view showing the side frame of Fig. 9. Fig.

Hereinafter, one embodiment of the present invention will be described in detail. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view illustrating a clothes dryer in accordance with exemplary embodiments of the present invention. Fig. 2 is a view showing the inside of the clothes dryer shown in Fig. 1; Fig. 3 is a view showing a drum supporter in a state in which the filter cartridge is mounted, and Fig. 4 is a view showing the drum supporter in a state in which the filter cartridge is detached.

1 to 4, a clothes dryer according to the present invention includes a casing 1 having an opening for charging clothes, a door 2 for selectively opening and closing the opening, A drum supporter 5 for supporting the front end of the drum 4 and a back panel 6 for supporting the rear end of the drum 4. [

The casing 1 includes a base 11 mounted on the ground surface, a cabinet 12 supported by the base 11 and having a front surface and an open top surface, a top plate 13 covering the open upper surface of the cabinet 12, And a front cover 14 covering the open front side of the cabinet 12. [ The front cover 14 is provided with the opening for closing the garment, and the opening can be opened and closed by the door 2.

A control panel 32 for controlling the clothes dryer may be provided on the upper portion of the front cover 14. The control panel 32 may include an input unit for receiving various control commands from the user, and a display unit for informing the user of the operation status of the clothes dryer.

In addition, the clothes dryer may further include a steam supply device (not shown) for supplying steam into the drum 4. [ At this time, water for generating steam may be received in the drawer 31 located at the upper portion of the front cover 14. [ Alternatively, separate water supply for steam generation may be provided separately from the drawer 31.

A driving unit for rotating the drum 4 may be provided in the cabinet 12. [ The driving unit may include a motor 83 for generating a rotational force, and a belt (not shown) for transmitting the rotational force of the motor 83 to the drum 4. The belt is wound around the outer peripheral surface of the drum 4 and can transmit the rotational force of the motor 83 to the drum 4.

The drum supporter 5 is provided inside the cabinet 12 to support the front end of the drum 4. [ The rear end of the drum 4 can be supported by the back panel 6. That is, the drum supporter 5 and the back panel 6 are fixed to the casing 1, and the drum 4 can be rotatably supported by the drum supporter 5 and the back panel 6. At this time, the drum supporter 5 and the back panel 6 are provided with a plurality of rollers 55, which can reduce friction on the outer circumferential surface of the rotating drum 4.

The drum supporter 5 may include a front surface 51 on which a charging port 5h is formed and a charging surface 52 extending from the front surface 51 around the charging port 5h into the drum 4. [ At this time, the charging surface 52 may have a ring shape surrounding the entire charging port 5h, or may have a shape surrounding a part of the charging port 5h. In the present invention, a description will be given by taking as an example the case where the insertion surface 52 has an arc shape surrounding a part of the charging port 5h. In this case, a discharge port 52h for discharging the air inside the drum 4 to the outside of the drum 4 is formed in the opened portion of the loading surface 52 (see FIG. 4). A discharge duct 53 is connected to the discharge port 52h and a filter cartridge 7 can be installed in the discharge duct 53. [

The back panel 6 may have a ring shape surrounding the rear end of the drum 4. Further, the back panel 6 may be provided with an air supply mechanism 6h for supplying air into the drum 4. [ That is, the air supplied into the drum 4 through the air supply mechanism 6h evaporates the moisture contained in the clothes, and the humidified air can be discharged to the outside of the drum 4 through the discharge port 52h.

An air circulation unit for circulating the air inside the drum 4 may be provided under the drum 4. The air circulation unit includes a blowing fan 82 for circulating air, a connecting duct 81 connected to the discharge duct 53 for guiding the air to the blowing fan 82, air blown by the blowing fan 82, A circulation duct (not shown) for guiding the air to the air supply mechanism 6h of the back panel 6, and a heating unit for heating the air inside the circulation duct.

2, the motor 83 for rotating the drum 4 is shown as being used to drive the blowing fan 82, but the present invention is not limited thereto. For example, in addition to the motor 83 for rotating the drum 4, a separate motor for driving the blowing fan 82 may be further provided.

The discharge duct 53 guides the air introduced through the discharge port 52h in the lateral direction 53s and its end 53h is connected to the connection duct 81. [ In the discharge duct 53, a seat surface 54 for mounting the filter cartridge 7 may be formed. The filter cartridge 7 can be seated on the seating surface 54 and received within the exhaust duct 53.

The heating unit may be various means for heating the air. In the present invention, a case of heating air using a heat pump will be described as an example. In addition, various means such as electric heaters, thermoelectric elements and the like can be used.

The heat pump undergoes a series of processes of compressing, expanding, evaporating, and condensing the refrigerant along a closed circulating flow path, and the heat generated during the condensing process of the refrigerant heats the air passing through the circulating duct. Although only the compressor 84 for compressing the refrigerant and the condenser 85 for condensing the refrigerant are shown in FIG. 2, an expansion valve and an evaporator may be further provided.

The filter cartridge 7 can be detachably mounted on the input surface 52 of the drum supporter 5. [ 3 and 4, the filter cartridge 7 is inserted into the discharge port 52h of the input surface 52 and can be seated on the seating surface 54 of the discharge duct 53 have. Thus, the air discharged from the drum 4 to the outside of the drum 4 through the discharge port 52h passes through the filter cartridge 7. [ In this process, a foreign substance such as a lint contained in the exhaust air can be filtered by the filter cartridge 7.

On the other hand, since the filter cartridge 7 is not integrally formed with the drum supporter 5, there may be a certain gap between the filter cartridge 7 and the input surface 52. [ However, since the air introduced through the gap can not be filtered by the filter cartridge 7, problems such as duct clogging may occur. In this case, the drying efficiency of the clothes dryer may also be lowered.

In order to prevent this, a sealing member 9 may be provided on the injection surface 52. The sealing member 9 can clear the gap between the filter cartridge 7 and the input surface 52 so that all air discharged from the drum 4 passes through the filter cartridge 7. [

On the other hand, for convenience of manufacture and installation, the sealing member 9 may be formed of a flexible material such as rubber or silicone. In this case, there is an advantage that the sealing member 9 can be easily mounted on the insertion surface 52, but conversely, the sealing member 9 can be easily separated from the insertion surface 52. Particularly, in the process of withdrawing the filter cartridge 7 from the discharge duct 53, the sealing member 9 may be caught by the filter cartridge 7 and detached.

In order to prevent this, a plurality of guide ribs are formed outside the filter cartridge 7 in the present invention. This will be described in more detail with reference to FIGS. 11 to 15. FIG.

Hereinafter, the structure of the filter cartridge will be described in detail with reference to FIGS. 3 to 10. FIG.

Figures 5 and 6 are perspective views showing the filter cartridge. 7 is a perspective view showing an inner filter cartridge. 8 is a view showing a state in which the inner filter cartridge of Fig. 7 is deployed. 8 (a) shows an inner side view of the inner filter cartridge in an expanded state, and FIG. 8 (b) shows an outer side surface of the inner filter cartridge in a deployed state. 9 is a perspective view showing the outer filter cartridge. 10 is a view showing a state in which the outer filter cartridge of Fig. 9 is deployed. 10 (a) shows an inner side surface in a state in which the outer filter cartridge is expanded, and FIG. 10 (b) shows an outer side surface in a state in which the outer filter cartridge is expanded.

3 to 10, the filter cartridge 7 may include an inner filter cartridge 71 and an outer filter cartridge 74. The inner filter cartridge 71 and the outer filter cartridge 74 can be mounted on the drum supporter 5 with the inner filter cartridge 71 housed in the outer filter cartridge 74 as separate members separated from each other. In this case, the air discharged from the drum 4 can be sucked into the blowing fan 82 through the inner filter cartridge 71 and the outer filter cartridge 74 sequentially.

The upper end of the outer filter cartridge 74 can be seated on the seating surface 54 (see FIG. 4) and fully received within the exhaust duct 53. An opening 74h (see FIG. 9 (a)) for inserting the inner filter cartridge 71 may be formed on the upper surface of the outer filter cartridge 74. The inner filter cartridge 71 can be accommodated in the outer filter cartridge 74 through the opening 74h or can be drawn out from the outer filter cartridge 74. [

The inner filter cartridge 71 and the outer filter cartridge 74 may each include a plurality of mesh networks M for filtering air and frames 710 and 740 for fixing the mesh network M, At this time, the plurality of mesh meshes M may be provided at various positions on the filter cartridges 71 and 74, and the number and shape of the mesh cartridges M may be variously modified. Hereinafter, for the sake of convenience of explanation, the mesh network located on the front surface of the filter cartridges 71 and 74 is defined as a front mesh network, the mesh network positioned on the side is defined as a side mesh network, and the mesh network located on the rear side is defined as a rear mesh network. Let's name it. In this case, the direction in which the door 2 is located is defined as the front surface of the filter cartridge 7 with the filter cartridge 7 mounted on the drum supporter 5, and the direction in which the back panel 6 is located is Is defined as the rear surface of the filter cartridge (7).

The inner filter cartridge 71 may include a plurality of mesh networks M for filtering foreign substances from the air and an inner filter frame 710 for supporting the mesh M.

On the other hand, the inner filter cartridge 71 can be divided into an inner front filter 72 and an inner rear filter 73 for convenience. This can be clearly distinguished from the state in which the inner filter cartridge 71 is deployed as shown in Fig.

The inner front filter 72 may be composed of an inner front frame 720 and a plurality of mesh networks M and the inner rear filter 73 may be composed of an inner rear frame 730 and a plurality of meshes M. That is, the inner filter cartridge 71 is composed of the inner filter frame 710 and the plurality of network M, and the inner filter frame 710 is composed of the inner front frame 720 and the inner rear frame 730 will be. This is shown in FIG.

The inner front frame 720 may be formed with openings P1 and P2 to which the front netting is installed and the inner rear frame 730 may have openings P3 and P4 through which the rear netting is installed. A part of the inner front frame 720 in which the openings P1 and P2 are formed is referred to as an inner front portion 721 and a portion of the inner rear frame 730 in which the openings P3 and P4 are formed is referred to as an inner rear portion 730. [ (731). The portions extending from both sides of the inner front portion 721 toward the inner rear portion 731 become the inner side portions 712 and 713, respectively.

The inner front filter 72 and the inner rear filter 73 can be detachably coupled to each other. Such a coupling can be achieved by using only the elasticity of the material without a separate fastening member. For this purpose, at least one of the inner front frame 720 and the inner rear frame 730 may be provided with hooks 736, and the other one may be formed with an appropriately shaped coupling that engages hooks 736.

The inner front frame 720 and the inner rear frame 730 are spaced apart from each other by a predetermined distance and can be connected to each other by a connecting portion 711. A plurality of connection portions 711 may be spaced apart. The inner front frame 720 or the inner rear frame 730 is rotated around the connecting portion 711 to be opened or folded.

On the other hand, in one of the inner front frame 720 and the inner rear frame 730, a stopper protrusion 728 is formed to prevent the other one from developing beyond a predetermined angle, A deployment restricting protrusion 738 interfering with the protrusion 728 may be formed. Due to such a structure, the inner filter cartridge 71 can be deployed only within a certain angular range, and breakage of the connection portion 711 can be prevented.

A plurality of ribs 725 and 735 may be provided on the upper surface of the inner filter frame 710. The ribs 725 and 735 may divide the air inlet into a plurality of small areas. The ribs 725 and 735 can increase the rigidity of the inner filter frame 710 and prevent an object such as a coin from being introduced into the inner filter cartridge 71. [

A label 727 may be provided on the upper surface of the inner filter frame 710 to indicate the direction in which the inner filter cartridge 71 is mounted. For example, the mark 727 may be in the form of an arrow, and the direction indicated by the arrow may be the front of the drum 4.

When the user separates the filter cartridge 7 from the drum supporter 5, most of the user pulls the upper portion of the inner filter cartridge 71. In this case, only the inner filter cartridge 71 can be drawn out, and the user may not be aware of the existence of the outer filter cartridge 74. [

At least one interference protrusion 715 is formed outside the inner filter cartridge 71 and a restraining protrusion 745 for restraining the interference protrusion 715 is formed in the outer filter cartridge 74 have. Specifically, the interference protrusion 715 protrudes from the outer surface of the inner filter frame 710 toward the outer filter cartridge 74, and the restricting protrusion 745 protrudes from the inner surface of the outer filter frame 740 to the inner filter cartridge 71, As shown in Fig. Thus, when the user pulls the inner filter cartridge 71 upward, the interference protrusions 715 of the inner filter cartridge 71 come into contact with the restricting protrusions 745 of the outer filter cartridge 74, 74 can be moved integrally with the inner filter cartridge 71 and separated from the drum supporter 5.

In one embodiment, the interference protrusion 715 may be formed at a position corresponding to the restraining protrusion 745. [ In this case, when the user pulls the inner filter cartridge 71 upward, the inner filter cartridge 71 can be pulled out integrally with the outer filter cartridge 74.

Alternatively, the interference protrusion 715 may be spaced apart from the restraining protrusion 745 by a certain distance. That is, the interference protrusion 715 and the restricting protrusion 745 may be spaced apart from each other by a predetermined distance along the drawing direction of the inner filter cartridge 71. 6, the interference protrusion 715 comes into contact with the restricting protrusion 745 after the inner filter cartridge 71 is drawn out by a certain distance d, and thereafter, the outer filter cartridge 74 can also be withdrawn together with the inner filter cartridge 71.

After the filter cartridge 7 is withdrawn from the drum supporter 5, the user can deploy the outer filter cartridge 74 to take out the inner filter cartridge housed therein. However, in some cases, the inner filter cartridge 71 may be pulled by applying a force in the state where the user does not deploy the outer filter cartridge 74. In this case, the interference protrusion 715 or the restricting protrusion 745 may be broken.

In order to prevent this, at least one of the interference protrusion 715 and the restricting protrusion 745 is formed with an inclined surface. For example, the first inclined surface 7151 and the second inclined surface 7153 can be formed on both sides of the restricting projection 715. [ The first inclined surface 7151 may be inclined so that the protruding height gradually decreases upward and the second inclined surface 7153 may be inclined downward so that the protruding height gradually decreases.

Therefore, even if the inner filter cartridge 71 is pulled out without deploying the outer filter cartridge 74, the first inclined surface 7151 can overcome the interference with the restricting projection 745 if a sufficient force is applied. Thus, the inner filter cartridge 71 can be separated from the outer filter cartridge 74. [ Conversely, even when the inner filter cartridge 71 is inserted into the outer filter cartridge 74, the second inclined surface 7153 can overcome the interference with the restricting projection 745 if a sufficient force is applied. Accordingly, the inner filter cartridge 71 can be inserted into the outer filter cartridge 74.

The outer filter cartridge 74 may include a plurality of mesh networks M for filtering foreign substances from the air and an outer filter frame 740 for supporting the mesh M.

On the other hand, the outer filter cartridge 74 can be divided into an outer front filter 75, an outer rear filter 76, a bottom filter 77 and a side filter 78 for convenience. This is classified according to the position, and can be clearly distinguished from the developed state as shown in FIG.

The outer front filter 75 is composed of an outer front frame 750 and a plurality of mesh networks M and the outer rear filter 76 is composed of an outer rear frame 760 and a plurality of mesh networks M, The side surface filter 77 may be composed of a bottom frame 770 and a plurality of mesh networks M and the side filter 78 may be composed of a side frame 780 and a plurality of mesh networks M. That is, the outer filter cartridge 74 is composed of an outer filter frame 740 and a plurality of mesh networks M, and the outer filter frame 740 is further composed of an outer front frame 750, an outer rear frame 760, (770) and a side frame (780). This is shown in FIG.

10, openings P 1 'and P 2' are formed in the outer front frame 750 and openings P 3 'and P 4' are formed in the outer rear frame 760. 'May be formed. At this time, the openings P1 'and P2' are divided by the front reinforcing frame 751, and the openings P3 'and P4' may be divided by the rear reinforcing frame 761. [ The bottom frame 770 is formed with openings P5 'and P6' in which a bottom netting is installed and openings P7 'and P8' in which side netting is installed in the side frames 780. At this time, the openings P5 'and P6' are divided by the bottom reinforcing frame, and the openings P7 'and P8' can be divided by the side reinforcing frame. The openings P1 ', P2', P3 'and P4' of the outer filter frame 740 correspond to the openings P1, P2, P3 and P4 of the inner filter frame 710, respectively.

A plurality of spaced apart projections 753 and 763 may be formed on the outer surface of the outer filter frame 740. The spacing protrusions 753 and 763 can ensure that the outer filter frame 740 is spaced apart from the discharge duct 53 by a predetermined distance so that the outer filter cartridge 74 is mounted at the correct position.

For example, a pair of first spacing protrusions 753 is provided below the outer front frame 750, and a pair of second spacing protrusions 763 is provided below the outer rear frame 760 . At this time, the positions and the number of the spacing protrusions 753 and 763 can be appropriately changed according to the shape of the outer filter frame 740. 9, when the thickness of the outer filter frame 740 becomes narrower toward the lower side, it is preferable that the spacing protrusions are positioned below the outer filter frame 740.

The bottom frame 770 is connected to the outer front frame 750 and the outer rear frame 760 in a deployable or collapsible manner respectively and the side frames 780 are connected to the outer front frame 750 or the outer rear frame 760 Can be connected in a deployable or collapsible manner. At this time, each of the frames 750, 760, 770, and 780 may be connected to each other by a connection portion 741. A plurality of connection portions 741 are spaced apart from each other and can be expanded or folded by rotating the frames 750, 760, 770, and 780 around the connection portions 741.

In order to prevent the outer front frame 750 and the outer rear frame 760 from expanding beyond a predetermined angle around the bottom frame 770, the outer front frame 750 and the outer rear frame 760 are provided with front A stopper protrusion 755 and a rear stopper protrusion 765 may be provided on the bottom surface of the bottom frame 770 and a deployment protrusion 771 may be provided on the bottom surface of the bottom frame 770, respectively. The front stopper protrusion 755 and the rear stopper protrusion 765 may be formed at the lower portion of the outer front frame 750 and the lower portion of the outer rear frame 760, respectively. For example, the front stopper protrusion 755 may be provided below the front reinforcing frame 751, and the rear stopper protrusion 765 may be provided below the rear reinforcing frame 761.

The development restricting protrusion 771 contacts the stopper protrusions 755 and 765 while the frames 750, 760 and 770 are deployed so that the frames 750, 760 and 770 are deployed only within a certain angular range Can be limited. Thus, breakage of the connecting portion 741 can be prevented.

The side frames 780 may be foldably connected to any one of the outer front frame 750 and the outer rear frame 760 and may be coupled to the other frame in a folded state. At this time, the other frame coupled to the side frame 780 may be provided with a fixing holder 758 for fixing the side frame 780. For example, as shown in Fig. 10 (a), an open tab 781 is provided in the side frame 780, and a plurality of fixing holders 781 for fixing the open tab 781 to the side surface of the outer front frame 750 (758) may be provided. The opening tab 781 is coupled to the fixed holder 758 so that the opening of the side frame 780 can be interrupted.

Meanwhile, the outer rear frame 760 may be provided with a side stopper protrusion 767 for preventing the side frame 780 from expanding beyond a predetermined angle. The deployment range of the side frame 780 can be limited by the side stopper projection 767 contacting the outer rear frame 760 in a state in which the side frame 780 is deployed.

On the other hand, there are many protruding components outside the outer filter cartridge 74. For example, the spacing protrusions 753, 763, the stopper protrusions 755, 765, 767, and the open tab 781 may protrude outward from the outer filter frame 740. Thus, in the process of withdrawing the outer filter cartridge 74 from the exhaust duct 53, interference may occur between the protruding components and the sealing member 9. Therefore, it is possible to prevent the filter cartridge 7 from interfering with the sealing member 9 by further forming guide ribs in each of the protruding components. Hereinafter, the guide rib will be described in more detail with reference to FIGS. 11 to 15. FIG.

Figs. 11 and 12 are enlarged views showing portions A and B of Fig. 9, respectively. Figs. 13 and 14 are enlarged views showing portions C and D of Fig. 10, respectively. Fig. 15 is a view showing the side frame of Fig. 9. Fig.

Referring to FIG. 11, the first spacing protrusion 753 may be provided with a first guide rib 754 extending upward and downward. That is, the first guide ribs 754 can extend up and down a predetermined distance along the direction of drawing out the outer filter cartridge 74 about the first spacing protrusion 753.

The first spacing protrusions 753 are provided at the left lower end and the lower right end of the outer front frame 740 so that the first guide ribs 754 may be provided on each of the pair of first spacing protrusions 753. [

On the other hand, the height at which the first guide ribs 754 protrude may be substantially the same as the first spacing protrusions 753. The first guide rib 754 has a first inclined portion 7541 which extends upward from the first spaced projection 753 and whose projected height gradually decreases and a second inclined portion 7541 which extends downward from the first spaced projection 753 And a second inclined portion 7543 whose protruding height is gradually lowered. Even if the first guide rib 754 contacts the sealing member 9 in the process of withdrawing the outer filter cartridge 74, the sealing member 9 may not be detached from the insertion surface 52.

9 (b), a second spacing projection 763 is provided at the lower left and lower right ends of the outer rear frame 750, respectively. The second spacing projection 763 is also provided with a first guide rib A second guide rib 764 substantially identical to the first guide rib 754 may be provided.

12 and 13, the front stopper protrusion 755 and the rear stopper protrusion 765 may be provided with third guide ribs 756 and fourth guide ribs 766, respectively, which extend upward and downward.

The third guide rib 756 extends upward from the front stopper protrusion 755 along the front reinforcing frame 751 and the fourth guide rib 766 extends from the rear stopper protrusion 765 to the rear reinforcing frame 761 Can be extended upwardly.

9A shows that the third guide rib 756 extends from the front stopper projection 755 to the opposite side of the outer front frame 750 to cover the entire front reinforcing frame 751, 9 (b), a fourth guide rib 766 is shown extending from the rear stopper projection 765 so as to cover only a part of the rear reinforcement frame 761. However, the present invention is not limited thereto, and the extension length of the guide ribs 756 and 766 can be variously changed as needed.

The fourth guide rib 766 may extend to cover the entire rear reinforcing frame 761 like the third guide rib 756 and the third guide rib 756 may extend to cover the entire rear reinforcing frame 761, As well as to cover only a portion of the front reinforcing frame 751, as shown in FIG. However, when the guide rib covers only a part of the reinforcing frame, it is preferable that the protruding height gradually decreases toward the upper part. This is to prevent the guide rib from interfering with the sealing member 9 in the process of withdrawing the outer filter cartridge 74.

12 and 13 show a pair of third guide ribs 756 and fourth guide ribs 766, respectively, but the present invention is not limited thereto. That is, the provision of the pair of third guide ribs 756 is a result of the shape of the front stopper protrusion 755, and the fourth guide rib 766 is also the same. Therefore, the number of the third and fourth guide ribs 756 and 766 may vary depending on the shape of the stopper protrusions 755 and 765. [

Referring to FIG. 14, the side stopper projection 767 may be provided with a fifth guide rib 768 extending upward and downward. That is, the fifth guide ribs 768 may extend up and down a predetermined distance along the pull-out direction of the outer filter cartridge 74 about the side stopper projections 767.

The fifth guide rib 768 extends upward from the side stopper projection 767 and extends downward from the third inclined portion 7681 and the side stopper projection 767 whose projected height gradually decreases, And a fourth inclined portion 7683 whose height gradually decreases. Even if the fifth guide rib 768 contacts the sealing member 9 in the process of withdrawing the outer filter cartridge 74, the sealing member 9 may not be detached from the insertion surface 52.

Referring to FIG. 15, a plurality of rails 783 may be provided on the side frame 780. For example, the rail 783 includes a pair of vertical rails 7831 and 7832 extending up and down along the drawing direction of the outer filter cartridge 74, and a pair of vertical rails 7831 and 7832, 7833 < / RTI > Alternatively, more or fewer rails may be provided depending on the shape of the side frame 780.

The height at which the rail 783 protrudes from the side frame 780 may be equal to the height at which the open tab 781 is protruded. Therefore, when the sealing member 9 contacts the opening tab 781 at the time of pulling out the outer filter cartridge 74, since the rail 783 also contacts the sealing member 9, So that it can be prevented from being detached.

The vertical rails 7831 and 7832 may be formed such that the protruded heights of both ends are gradually lowered. That is, the protruded height of the upper ends of the vertical rails 7831 and 7832 gradually decreases toward the upper portion, and the protruded height of the lower ends of the vertical rails 7831 and 7832 gradually decreases toward the lower portion. The sealing member 9 may not be detached from the input surface 52 even if the vertical rails 7831 and 7832 come into contact with the sealing member 9 in the process of withdrawing the outer filter cartridge 74. [

The horizontal rail 7833 can have a shape in which the height protruded along the drawing direction of the outer filter cartridge 74 gradually increases and then drops again. For example, the cross-sectional shape of the horizontal rail 7833 may be semicircular, oval, triangular, or the like. This is to prevent the sealing member 9 from being caught by the horizontal rail 7833 and being detached when the outer filter cartridge 74 is pulled out.

As described above, on the outer surface of the outer filter cartridge 74, there are a plurality of protruding structures such as the spacing protrusions 753 and 763, the stopper protrusions 755, 765, and 767, and the open tab 781. The protruding structures may cause interference with the sealing member 9 when the outer filter cartridge 74 is pulled out. In the present invention, guide ribs 754, 764, 756, 766, and 768 are formed in each of the protruding structures, or a rail structure 783 is formed in the side frame 780. Thus, the interference between the protruding structures and the sealing member 9 can be suppressed when the outer filter cartridge 74 is taken out, and the problem of the sealing member 9 being detached can be solved.

1: casing 2: door
4: Drum 5: Drum supporter
6: Back panel 7: Filter cartridge
71: inner filter cartridge 74: outer filter cartridge
750: outer front frame 753, 763: first and second spacing projections
754, 764, 756, 766, 768: First to fifth guide ribs
755, 765, 767: front, rear, side stopper projection
759: Fixing holder 760: Outer rear frame
770: bottom frame 771: bottom expansion restricting projection
780: side frame 781: open tab
783: Rail M: Mesh
9: Sealing member

Claims (19)

A drum rotatably provided to receive clothes;
A drum supporter supporting the drum and having a discharge port for discharging air inside the drum;
A circulation flow path for guiding the air discharged through the discharge port back into the drum; And
And a filter cartridge which is supported by the drum supporter and is drawably inserted into the circulation channel through the discharge port to filter foreign substances in the air,
The filter cartridge includes:
At least one spacing protrusion protruding from the outer surface to maintain a constant gap with the circulation passage; And
And a guide rib extending upward and downward along the drawing direction of the filter cartridge about the spacing protrusion. 2. The apparatus according to claim 1,
A first inclined portion extending upward from the spaced-apart projection and having a protruding height gradually lowered; And
And a second inclined portion extending downward from the spacing protrusion and having a protruding height gradually lowered. The apparatus according to claim 1,
A first spacing projection located on a front surface of the filter cartridge; And
And a second spaced projection located on a rear surface of the filter cartridge,
The guide ribs
A first guide rib formed on the first spacing projection; And
And a second guide rib formed on the second spacing projection. The clothes dryer of claim 3, wherein the first spacing protrusions are provided at the lower left and lower right ends of the front face of the filter cartridge, respectively. The filter cartridge according to claim 1,
A front frame and a rear frame respectively having openings;
A bottom frame connected to the front frame and the rear frame so as to be expandable; And
And a mesh installed in the opening to collect foreign matter. 6. The method of claim 5,
Front stopper protrusions and rear stopper protrusions protrude from a lower portion of the front frame and the rear frame, respectively,
Wherein the bottom frame is provided with a deployment restricting projection for restricting the expansion range of the front frame and the rear frame by contacting the front stopper projection and the rear stopper projection in a state in which the filter cartridge is deployed. [7] The apparatus of claim 6,
Further comprising a third guide rib extending upward from the front stopper projection in a direction of drawing out the filter cartridge. 8. The method of claim 7,
The front frame further includes a front reinforcing frame extending vertically to divide the opening,
And the third guide rib extends upward on the front reinforcing frame. The clothes dryer of claim 8, wherein the third guide rib extends to cover the entire front reinforcing frame. 8. The clothes dryer as set forth in claim 7, wherein an upper end of the third guide rib gradually decreases in height as it goes upward. 8. The clothes dryer of claim 7, wherein the third guide rib includes a pair of ribs extending upward from the front stopper projection. 7. The backlight unit of claim 6,
Further comprising a fourth guide rib extending upward from the rear stopper projection along the drawing direction of the filter cartridge. 13. The method of claim 12,
Wherein the rear frame further includes a rear reinforcement frame extending up and down to divide the opening,
And the fourth guide rib extends upward on the rear reinforcing frame. 6. The method of claim 5,
The filter cartridge further comprising a side frame that is releasably connected to the rear frame,
And a side stopper protrusion protruding from the rear frame for restricting the expansion range of the side frame in contact with the side frame when the side frame is deployed. 15. The backlight assembly of claim 14,
Further comprising a fifth guide rib extending upward and downward along the pull-out direction of the filter cartridge about the side stopper projection. 16. The apparatus of claim 15, wherein the fifth guide rib comprises:
A third inclined portion extending upward from the side stopper projection and having a protruding height gradually lowered; And
And a fourth inclined portion extending downward from the side stopper protrusion and having a protruding height gradually lowered. 15. The method of claim 14,
The side frame includes:
An open tab coupled to the front frame to intermittently open the side frame; And
And at least one rail protruding at the same height as the open tab and extending vertically or horizontally. 18. The method of claim 17,
The projecting height of the upper end of the rail gradually decreases toward the upper side,
Wherein a height of the lower end of the rail is gradually lowered toward the lower side. The filter cartridge according to claim 1,
An inner filter cartridge inserted into the circulation channel to filter air discharged from the drum; And
And an outer filter cartridge supported by the drum supporter, the inner filter cartridge being detachably received therein, and an outer filter cartridge for filtering air passing through the inner filter cartridge.

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