Filter screen, flow channel, clothes dryer and control method

Abstract

The invention provides a filter screen, a flow channel, a clothes dryer and a control method, the filter screen comprises a plurality of filter units arranged in sequence, each filter unit comprises a filter screen support and a filter screen body arranged on the filter screen support, and the filter screen supports of every two adjacent filter units are connected; when the filter screen bracket of each filter unit is in an unfolded state, the whole filter screen forms a single-layer filter structure, and the single-layer filter structure filters flowing fluid once; when the filter screen brackets of the at least two filter units are in a stacked state, the filter screen integrally forms a multi-layer filter structure, and the multi-layer filter structure filters flowing fluid at least twice; the filtering effect, the fluid flow speed, the fluid mass and the fluid flow are both considered, and the problem that a filtering screen cannot give consideration to the filtering effect and the fluid flow speed in the prior art is solved.

Description

Technical Field

[0001] The present invention belongs to the field of filtering technology, and in particular relates to a filter screen, a flow channel, a clothes dryer and a control method. Background Art

[0002] Existing fluid equipment filters fluids by installing filters within the flow channel. To improve filtering effectiveness, existing technologies employ multiple layers of filters to thoroughly filter impurities from the fluid. However, these multiple layers increase the flow resistance of the fluid, reducing its flow rate. Therefore, a filter that balances filtering effectiveness and fluid flow rate is needed. Summary of the Invention

[0003] In view of this, the present invention provides a filter, a flow channel, a clothes dryer and a control method to solve the problem in the prior art that the filter cannot take into account both the filtering effect and the fluid flow rate.

[0004] The present invention provides a filter screen, comprising a plurality of filter units arranged in sequence, each of the filter units comprising a filter screen support and a filter screen body arranged on the filter screen support, and the filter screen supports of two adjacent filter units can be connected together in a manner that they can be unfolded or stacked;

[0005] When the filter screen support of each filter unit is in the unfolded state, the filter screen as a whole forms a single-layer filter structure, and the single-layer filter structure filters the fluid flowing through once;

[0006] When the filter screen supports of at least two filter units are in a stacked state, the filter screens as a whole form a multi-layer filter structure, and the multi-layer filter structure filters the fluid flowing through at least twice.

[0007] Further optionally, the filter supports of two adjacent filter units are unfolded and stacked around a first axis; at least one of the filter supports of the two adjacent filter units is rotatable, and the filter support rotates around a second axis; by controlling the rotation of the filter support, the filter supports of the two filter units can be placed in an unfolded state or a stacked state;

[0008] Wherein, the second axis is parallel to the first axis.

[0009] Further optionally, the filtering surface of the filter body of each filter unit is a plane;

[0010] When the filter surfaces of the filter bodies of the plurality of filter units are parallel or are located in the same plane, the filter bodies of the plurality of filter units as a whole constitute the single-layer filter structure;

[0011] When the filter surfaces of the filter bodies of at least two of the filter units intersect, the filter bodies of the plurality of filter units constitute the multi-layer filter structure as a whole.

[0012] The present invention further provides a flow channel, wherein a first filter screen is provided in the flow channel, wherein the first filter screen is any one of the filter screens described above; a plurality of filter units are sequentially arranged along the extension direction of the flow channel, and the head ends and tail ends of the plurality of filter screen supports are arranged relative to each other along the extension direction of the flow channel in the length direction or the width direction of the cross section of the flow channel;

[0013] The single-layer filter structure covers the cross section of the flow channel once, and the multi-layer filter structure covers the cross section of the flow channel at least twice.

[0014] Further optionally, the flow channel includes two first flow channel walls arranged opposite to each other in a first direction and two second flow channel walls arranged opposite to each other in a second direction;

[0015] The head end and the tail end are movably arranged on the two first flow channel walls respectively, and the rotating filter bracket is rotatably arranged on the two second flow channel walls via a rotating shaft;

[0016] The filter screen is configured such that: when the rotating filter screen holder rotates, the head ends and tail ends of the plurality of filter screen holders respectively move relative to the corresponding first flow channel walls, thereby enabling the first filter screen to switch between the single-layer filter structure and the multi-layer filter structure;

[0017] The first direction is one of the length direction and the width direction of the cross section of the flow channel, the second direction is the other of the length direction and the width direction of the cross section of the flow channel, and the rotating filter holder is a rotatable filter holder.

[0018] Further optionally, the first filter screen is configured as follows: when the first filter screen is in the single-layer filtering structure, both ends of the rotating filter screen bracket in the extension direction of the flow channel are away from the two first flow channel walls; when the first filter screen is in the multi-layer filtering structure, the two ends of the rotating filter screen bracket in the extension direction of the flow channel respectively abut the two first flow channel walls.

[0019] Further optionally, the head end and the tail end are slidably disposed on the corresponding first flow channel wall, and the sliding directions of the head ends and the tail ends of the plurality of filter screen supports are parallel to the extension direction of the flow channel;

[0020] When the rotating filter screen holder is controlled to rotate and the head ends and tail ends of the plurality of filter screen holders as a whole are close to each other, the first filter screen is converted from the single-layer filter structure to the multi-layer filter structure;

[0021] When the rotating filter screen support is controlled to rotate and the head ends and tail ends of the plurality of filter screen supports as a whole are moved away from each other, the first filter screen is converted from the multi-layer filter structure to the single-layer filter structure.

[0022] Further optionally, the filtration grades of at least two of the filter bodies of the plurality of filter units are different, and the filtration grade of the filter body located upstream is lower than the filtration grade of the filter body located downstream.

[0023] Further optionally, a second filter screen is provided at the outlet end of the flow channel.

[0024] Further optionally, the plurality of filter units include a first filter unit, a second filter unit, and a third filter unit arranged in sequence; the filter support of the first filter unit is a first filter support, the filter support of the second filter unit is a second filter support, and the filter support of the third filter unit is a third filter support;

[0025] The first filter support, the second filter support, and the third filter support are hingedly connected in sequence; one end of the first filter support away from the second filter support is slidably connected to one of the first flow channel walls, and one end of the third filter support away from the second filter support is slidably connected to the other of the first flow channel walls; the second filter support is rotatably disposed on the two second flow channel walls via two rotating shafts.

[0026] The first filter screen is configured as follows: when the second filter screen support is controlled to rotate and both ends of the second filter screen support in the extension direction of the flow channel are away from the two first flow channel walls, the first filter screen as a whole forms a single-layer filtering structure; when the second filter screen support is controlled to rotate and both ends of the second filter screen support in the extension direction of the flow channel respectively abut against the two first flow channel walls, the first filter screen as a whole forms a multi-layer filtering structure.

[0027] The present invention further provides a clothes dryer comprising a base, a front support, a drum, a rear back plate and a rear air housing; the base is formed with an air inlet duct, a two-device air duct and an air outlet duct that are sequentially connected, the air inlet duct being any of the flow channels described above; an evaporator and a condenser are provided in the two-device air duct;

[0028] The front support, the drum and the rear back plate are all arranged on the base, and the front support is arranged in front of the drum and forms a front air duct; the rear back plate is arranged behind the drum, and the rear air shell is buckled onto the rear back plate, and the rear air shell and the rear back plate are arranged to form a rear air duct; the rear wall of the drum is formed with an air inlet, and the air inlet is communicated with the interior of the drum;

[0029] The front air duct is connected to the drum mouth and the air inlet duct, and the rear air duct is connected to the air inlet and the air outlet duct, so that the drum, front air duct, air inlet duct, two-device air ducts, air outlet duct and rear air duct are connected in sequence to form a drying circuit; the drying air flow can circulate in the drying circuit.

[0030] The present invention further provides a control method for a clothes dryer, wherein the clothes dryer is the clothes dryer described above; when the clothes dryer runs a drying program, the control method includes:

[0031] Determining the material type of the clothing inside the drum;

[0032] According to the material type of the clothes inside the drum, controlling the first filter net as a whole to form a filtering structure corresponding to the material type of the clothes inside the drum;

[0033] Among them, the filtering structure corresponding to the material type of the clothes under the drum includes a single-layer filtering structure and a multi-layer filtering structure.

[0034] Further optionally, controlling the first filter net as a whole to form a filtering structure corresponding to the material type of the clothes inside the drum according to the material type of the clothes inside the drum includes:

[0035] When the material type of the clothes inside the drum is a material type that is not easy to shed lint, the first filter screen is controlled to form a single-layer filtering structure as a whole;

[0036] When the material type of the clothes inside the drum is a material type that easily sheds lint, the first filter screen is controlled to form a multi-layer filter structure as a whole.

[0037] Further optionally, controlling the first filter net as a whole to form a filtering structure corresponding to the material type of the clothes inside the drum according to the material type of the clothes inside the drum includes:

[0038] When the material type of the drum-type underwear includes at least one of silk and chemical fiber, the filter screen support of each filter unit is controlled to be in an unfolded state, so that the first filter screen as a whole forms a single-layer filter structure;

[0039] When the material type of the drum inner clothes includes at least one of cotton, linen and wool, the filter screen supports of at least two filter units are controlled to be in a stacked state, so that the first filter screen forms a multi-layer filter structure as a whole.

[0040] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0041] According to the needs of filtration, the filter screen holder state of the filter unit can be flexibly adjusted so that the filter screen as a whole forms a corresponding filtration structure, taking into account the filtration effect and fluid flow rate; when the filter screen holder of each filter unit is in the expanded state, the filter screen as a whole forms a single-layer filtration structure, and the single-layer filtration structure filters the fluid flowing through once; when the filter screen holders of at least two filter units are in the stacked state, the filter screen as a whole forms a multi-layer filtration structure, and the multi-layer filtration structure filters the fluid flowing through at least twice. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0043] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0044] Figure 1a and Figure 1b A schematic structural diagram of an embodiment of a filter screen provided by the present invention;

[0045] Figure 2 A schematic structural diagram of an embodiment of a rotatable filter support provided by the present invention;

[0046] Figure 3 This is a schematic structural diagram of an embodiment of the present invention when the first filter screen is in the flow channel;

[0047] Figure 4a A schematic structural diagram of an embodiment of the present invention in which the first filter screen forms a single-layer filter structure in the flow channel;

[0048] Figure 4b A schematic structural diagram of an embodiment of the present invention in which the first filter screen forms a multi-layer filter structure in a flow channel;

[0049] Figure 5 This is a schematic structural diagram of an embodiment of the present invention in which the second filter screen is located at the outlet end of the flow channel;

[0050] Figure 6a This is a schematic diagram of the axial structure of an embodiment of a clothes dryer provided by the present invention;

[0051] Figure 6b A rear structural diagram of an embodiment of a clothes dryer provided by the present invention;

[0052] Figure 6c A schematic cross-sectional view of an embodiment of a clothes dryer provided by the present invention;

[0053] Figure 7 A schematic flow chart of an embodiment of a control method for a clothes dryer provided by the present invention;

[0054] In the picture:

[0055] 1- filter; 11- filter bracket; 12- filter body;

[0056] 21 - first filter; 211 - first filter bracket; 212 - second filter bracket; 213 - third filter bracket; 214 - first slide bar; 215 - second slide bar; 22 - rotating shaft; 23 - driving motor;

[0057] 3-flow channel; 31-first flow channel wall; 311-first chute; 312-second chute; 32-second flow channel wall; 33-first direction; 34-second direction.

[0058] 4- second filter;

[0059] 5-Dryer; 511-Case; 512-Door; 52-Base; 521-Air ducts for both devices; 522-Air inlet; 523-Air outlet; 53-Front support; 531-Front air duct; 532-Clothes loading and unloading port; 54-Drum; 551-Back panel; 552-Rear air casing; 553-Rear air duct; 561-Evaporator; 562-Condenser. DETAILED DESCRIPTION

[0060] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0061] The terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a," "the," and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise. "A plurality" generally includes at least two, but does not exclude the inclusion of at least one.

[0062] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0063] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0064] Existing fluid equipment filters fluids by installing filters within the flow channel. To improve filtering effectiveness, existing technologies employ multiple layers of filters to thoroughly filter impurities from the fluid. However, these multiple layers increase the flow resistance of the fluid, reducing its flow rate. Therefore, a filter that balances filtering effectiveness and fluid flow rate is needed.

[0065] The present invention creatively provides a filter screen, comprising a plurality of filter units arranged in sequence, each filter unit comprising a filter screen support and a filter screen body arranged on the filter screen support, and the filter screen supports of two adjacent filter units are connected; when the filter screen support of each filter unit is in an expanded state, the filter screen as a whole forms a single-layer filter structure, and the single-layer filter structure filters the fluid flowing through once; when the filter screen supports of at least two filter units are in a stacked state, the filter screen as a whole forms a multi-layer filter structure, and the multi-layer filter structure filters the fluid flowing through at least twice; taking into account both the filtering effect and the fluid flow rate, and taking into account both the quality and flow rate of the fluid, the problem that the filter screen in the prior art cannot take into account both the filtering effect and the fluid flow rate is solved.

[0066] <Filter>

[0067] like Figure 1a and Figure 2 As shown, this embodiment provides a filter screen 1, comprising a plurality of filter units arranged in sequence, each filter unit comprising a filter screen support 11 and a filter screen body 12 arranged on the filter screen support 11, and the filter screen supports 11 of two adjacent filter units can be connected together in a manner that they can be unfolded or stacked;

[0068] When the filter screen support 11 of each filter unit is in the unfolded state, the filter screen 1 as a whole forms a single-layer filter structure, and the single-layer filter structure filters the fluid flowing through once;

[0069] When the filter screen supports 11 of at least two filter units are in a stacked state, the filter screen 1 as a whole forms a multi-layer filter structure, and the multi-layer filter structure filters the fluid flowing through at least twice.

[0070] Furthermore, the filter supports 11 of two adjacent filter units are deployed and stacked around a first axis; at least one of the filter supports 11 of the two adjacent filter units is rotatable, and the filter support 11 rotates around a second axis; by controlling the rotation of the filter support 11, the filter supports 11 of the two filter units can be placed in an deployed state or a stacked state; wherein the second axis is parallel to the first axis;

[0071] According to the filtering requirements, the filter screen support 11 that can be rotatably arranged is controlled to rotate, so that the filter screen 1 as a whole can form a single-layer filtering structure or a multi-layer filtering structure, thereby taking into account both the filtering effect and the flow rate of the fluid.

[0072] Specifically, the filtering surface of the filter body 12 of each filter unit is a plane;

[0073] When the filter surfaces of the filter bodies 12 of the multiple filter units are parallel or all on the same plane, the filter bodies 12 of the multiple filter units as a whole form a single-layer filter structure;

[0074] When the filter surfaces of the filter bodies 12 of at least two filter units intersect, the filter bodies 12 of the plurality of filter units form a multi-layer filter structure as a whole.

[0075] Preferably, the multi-layer filtering structure includes a double-layer filtering structure, a three-layer filtering structure, a four-layer filtering structure...an N-layer filtering structure, etc. The double-layer filtering structure is, for example, a V-shaped structure, the three-layer filtering structure is, for example, a Z-shaped structure, the four-layer filtering structure is, for example, a W-shaped structure, and the N-layer filtering structure is a zigzag shape; wherein N is a positive integer, and N≥4.

[0076] <Runner>

[0077] like Figures 3 to 4b As shown, this embodiment provides a flow channel 3, in which a first filter screen 21 is provided. The first filter screen 21 is any of the filter screens 1 described above. A plurality of filter units are sequentially arranged along the extension direction of the flow channel 3, and a plurality of filter screen supports 11 are arranged such that the head end and the tail end of the entirety of the extension direction of the flow channel 3 are relatively arranged in the length direction or the width direction of the cross section of the flow channel 3.

[0078] The single-layer filter structure covers the cross section of the flow channel 3 once, and can filter the fluid flowing through the flow channel 3 once; the multi-layer filter structure covers the cross section of the flow channel 3 at least twice, and can filter the fluid flowing through the flow channel 3 at least twice;

[0079] When the fluid flowing through the flow channel 3 contains relatively few impurities, the first filter screen 21 can be formed into a single-layer filter structure as a whole; when the fluid flowing through the flow channel 3 contains relatively many impurities, the first filter screen 21 can be formed into a multi-layer filter structure as a whole.

[0080] The specific structure of the flow channel 3 is further described below. The flow channel 3 includes two first flow channel walls 31 arranged opposite to each other in a first direction 33 and two second flow channel walls 32 arranged opposite to each other in a second direction 34. The two first flow channel walls 31 and the two second flow channel walls 32 are arranged to form a circle and form the flow channel 3.

[0081] The head end and the tail end are movably arranged on the two first flow channel walls 31 respectively, and the rotating filter bracket is rotatably arranged on the two second flow channel walls 32 through the rotating shaft 22;

[0082] The first filter screen 21 is configured such that when the filter screen holder is rotated, the head ends and tail ends of the plurality of filter screen holders 11 respectively move relative to the corresponding first flow channel walls 31 , thereby enabling the first filter screen 21 to switch between a single-layer filter structure and a multi-layer filter structure;

[0083] The first direction 33 is one of the length direction and the width direction of the cross section of the flow channel 3 , the second direction 34 is the other of the length direction and the width direction of the cross section of the flow channel 3 , and the rotating filter holder is a rotatably arranged filter holder 11 .

[0084] Specifically, an axial hole is formed on each of the two second flow channel walls 32, and the axial hole communicates with the inside and outside of the flow channel 3; the two axial holes of the two second flow channel walls 32 are respectively a first axial hole and a second axial hole, and the rotating shaft 22 includes a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are respectively inserted into the first axial hole and the second axial hole, and one end of the rotating filter bracket is connected to the end of the first rotating shaft located in the flow channel 3, and the other end of the rotating filter bracket is connected to the end of the second rotating shaft located in the flow channel 3;

[0085] One of the ends of the first rotating shaft located outside the flow channel 3 and the second rotating shaft located outside the flow channel 3 is connected to the drive motor 23; when the drive motor 23 is running, the filter bracket rotates, and the first filter 21 can be converted between a single-layer filter structure and a multi-layer filter structure.

[0086] Furthermore, the first filter screen 21 is configured as follows: when the first filter screen 21 is in a single-layer filtering structure, both ends of the rotating filter screen bracket in the extension direction of the flow channel 3 are away from the two first flow channel walls 31; when the first filter screen 21 is in a multi-layer filtering structure, both ends of the rotating filter screen bracket in the extension direction of the flow channel 3 respectively abut the two first flow channel walls 31.

[0087] The following further describes the conversion of the first filter screen 21 between a single-layer filter structure and a multi-layer filter structure. The head end and the tail end are respectively slidably disposed on the corresponding first flow channel wall 31. The sliding directions of the head end and the tail end of the plurality of filter screen supports 11 as a whole are parallel to the extension direction of the flow channel 3.

[0088] When the rotating filter screen holder is controlled to rotate and the head ends and tail ends of the plurality of filter screen holders 11 as a whole are close to each other, the first filter screen 21 is converted from a single-layer filter structure to a multi-layer filter structure;

[0089] When the rotating filter screen holder is controlled to rotate and the head ends and tail ends of the plurality of filter screen holders 11 as a whole move away from each other, the first filter screen 21 is converted from a multi-layer filter structure to a single-layer filter structure.

[0090] Specifically, a first slide bar 214 is provided at the head end and a second slide bar 215 is provided at the tail end; of the two first flow channel walls 31, one first flow channel wall 31 is provided with a first slide groove 311, and the other first flow channel wall 31 is provided with a second slide groove 312; the extension directions of the first slide groove 311 and the second slide groove 312 are both parallel to the extension direction of the flow channel 3; the first slide bar 214 is slidably set in the first slide groove 311, and the second slide bar 215 is slidably set in the second slide groove 312; the lengths of the first slide bar 214 and the second slide bar 215 are both greater than the width of the corresponding filter bracket 11, and the part of the first slide bar 214 that is greater than the width of the corresponding filter bracket 11 and the part of the second slide bar 215 that is greater than the width of the corresponding filter bracket 11 are both cylindrical structures; the cylindrical structure of the first slide bar 214 is embedded in the first slide groove 311, and the cylindrical structure of the second slide bar 215 is embedded in the second slide groove 312.

[0091] The rotating filter screen bracket is controlled to rotate, the first slide bar 214 slides along the first slide groove 311, and the second slide bar 215 slides along the second slide groove 312; when the first slide bar 214 and the second slide bar 215 approach each other, the first filter screen 21 is converted from a single-layer filter structure to a multi-layer filter structure; when the first slide bar 214 and the second slide bar 215 move away from each other, the first filter screen 21 is converted from a multi-layer filter structure to a single-layer filter structure.

[0092] In addition, the filtration levels of at least two of the filter bodies 12 of the multiple filter units are different, and the filtration level of the filter body 12 located upstream is lower than the filtration level of the filter body 12 located downstream; when the fluid flows through the first filter 21, the fluid in the flow channel 3 is gradually filtered by the filter bodies 12 of the multiple filter units, thereby improving the filtration effect and ensuring the quality of the fluid.

[0093] It should be noted that if Figure 5 As shown, in this embodiment, a second filter screen 4 is provided at the outlet end of the flow channel 3 , and the second filter screen 4 can filter the fluid discharged from the flow channel 3 again.

[0094] The following further describes the first filter 21 including three filter units as an example. The multiple filter units include a first filter unit, a second filter unit, and a third filter unit arranged in sequence. The filter support of the first filter unit is the first filter support 211, the filter support of the second filter unit is the second filter support 212, and the filter support of the third filter unit is the third filter support 213.

[0095] The first filter support 211, the second filter support 212, and the third filter support 213 are hingedly connected in sequence; one end of the first filter support 211 away from the second filter support 212 is slidably connected to a first flow channel wall 31, and one end of the third filter support 213 away from the second filter support 212 is slidably connected to the other first flow channel wall 31; the second filter support 212 is rotatably mounted on the two second flow channel walls 32 via two rotating shafts 22;

[0096] The filter screen is configured as follows: when the second filter screen bracket 212 is controlled to rotate and the two ends of the second filter screen bracket 212 in the extension direction of the flow channel 3 are away from the two first flow channel walls 31, the filter screen as a whole constitutes a single-layer filtering structure; when the second filter screen bracket 212 is controlled to rotate and the two ends of the second filter screen bracket 212 in the extension direction of the flow channel 3 respectively abut the two first flow channel walls 31, the filter screen as a whole constitutes a multi-layer filtering structure.

[0097] <Clothes Dryer>

[0098] like Figures 6a to 6c As shown, this embodiment further provides a clothes dryer 5, comprising a base 52, a front support 53, a drum 54, a rear back plate 551 and a rear air housing 552; the base 52 is formed with an air inlet duct 522, a two-device air duct 521 and an air outlet duct 523 that are sequentially connected, the air inlet duct 522 being the flow channel 3 described in any one of the above items; an evaporator 561 and a condenser 562 are provided in the two-device air duct 521;

[0099] The front support 53, the drum 54, and the rear back plate 551 are all arranged on the base 52, with the front support 53 being arranged in front of the drum 54 and forming a front air duct 531; the rear back plate 551 being arranged behind the drum 54, and the rear air shell 552 being fastened to the rear back plate 551, and the rear air shell 552 and the rear back plate 551 forming a rear air duct 553; an air inlet is formed on the rear wall of the drum 54, and the air inlet is connected to the interior of the drum 54; the rear air duct 553 is provided with a rotatable drying fan blade at one end near the air inlet;

[0100] The front air duct 531 connects the drum mouth of the drum 54 and the air inlet duct 522, and the rear air duct 553 connects the air inlet and the air outlet duct 523, so that the drum 54, the front air duct 531, the air inlet duct 522, the two-device air duct 521, the air outlet duct 523 and the rear air duct 553 are connected in sequence to form a drying circuit; when the drying fan blades rotate, the drying air flow can circulate in the drying circuit; when the drying air flow flows through the evaporator 561, the evaporator 561 dehumidifies the drying air flow; when the drying air flow flows through the condenser 562, the condenser 562 heats the drying air flow; when the drying air flow flows through the drum 54, it exchanges heat with the clothes in the drum 54, thereby achieving the purpose of drying the clothes.

[0101] Specifically, the front support 53 forms a clothing access opening 532 that communicates with the drum opening 54. The side wall of the clothing access opening 532 is formed with an air outlet that communicates with the clothing access opening 532. The front support 53 forms an air outlet duct that communicates with the air outlet below the air outlet. A movable door 512 is provided at the clothing access opening 532, and the door 512 can open or close the clothing access opening 532.

[0102] In addition, the clothes dryer 5 further includes a box body 511 , the interior of the box body 511 forms a box cavity, and the base 52 , the front support 53 , the drum 54 and the back plate 551 are all arranged in the box cavity.

[0103] <Control Method>

[0104] like Figure 7 As shown, this embodiment also provides a control method for a clothes dryer, wherein the clothes dryer is the clothes dryer 5 described above; when the clothes dryer 5 runs a drying program, the control method includes:

[0105] S1. Determine the material type of the clothes inside the drum 54;

[0106] S2. According to the material type of the clothes inside the drum 54, the first filter 21 is controlled to form a filtering structure corresponding to the material type of the clothes inside the drum 54;

[0107] The filter structures corresponding to the material type of the clothes in the drum 54 include a single-layer filter structure and a multi-layer filter structure; the single-layer filter structure is the default filter structure of the dryer 5 .

[0108] Furthermore, S2 includes:

[0109] S21. When the material of the clothes in the drum 54 is not easy to shed lint, the first filter 21 is controlled to form a single-layer filter structure as a whole; the flow resistance of the drying air flow is reduced, and the flow speed of the drying air flow is increased;

[0110] S22. When the material type of the clothes in the drum 54 is a material type that easily sheds lint, the first filter 21 is controlled to form a multi-layer filtering structure as a whole; the filtering effect is increased, the filtering accuracy is improved, the lint in the drying air flow is effectively removed, and the user experience is improved.

[0111] Specifically, S21 includes: when the material type of the clothes in the drum 54 includes at least one of silk and chemical fiber, controlling the filter screen support 11 of each filter unit to be in an unfolded state, so that the first filter screen 21 as a whole forms a single-layer filter structure;

[0112] S22 includes: when the material type of the clothes in the drum 54 includes at least one of cotton, linen and wool, controlling the filter screen supports 11 of at least two filter units to be in a stacked state, so that the first filter screen 21 as a whole forms a multi-layer filter structure.

[0113] While the exemplary embodiments of the present disclosure have been specifically illustrated and described above, it should be understood that the present disclosure is not limited to the detailed structures, configurations, or implementations described herein; rather, the present disclosure is intended to encompass various modifications and equivalent configurations within the spirit and scope of the appended claims.

Claims

1. A filter screen, characterized in that: The invention comprises a plurality of filter units arranged in sequence, each of the filter units comprising a filter support (11) and a filter body (12) arranged on the filter support (11), and the filter supports (11) of two adjacent filter units can be connected together in a manner that they can be unfolded or stacked; When the filter screen support (11) of each filter unit is in an unfolded state, the filter screen (1) as a whole forms a single-layer filter structure, and the single-layer filter structure filters the fluid flowing through once; When the filter screen supports (11) of at least two filter units are in a stacked state, the filter screen (1) as a whole forms a multi-layer filter structure, and the multi-layer filter structure filters the fluid flowing through at least twice.

2. The filter screen according to claim 1, characterized in that The filter supports (11) of two adjacent filter units are unfolded and stacked around a first axis; at least one of the filter supports (11) of the two adjacent filter units is rotatably arranged, and the filter support (11) rotates around a second axis; by controlling the rotation of the filter support (11), the filter supports (11) of the two filter units can be placed in an unfolded state or a stacked state; Wherein, the second axis is parallel to the first axis.

3. The filter screen according to claim 1, characterized in that The filtering surface of the filter body (12) of each filter unit is a plane; When the filter surfaces of the filter bodies (12) of the plurality of filter units are parallel or are all located in the same plane, the filter bodies (12) of the plurality of filter units constitute the single-layer filter structure as a whole; When the filter surfaces of the filter bodies (12) of at least two of the filter units intersect, the filter bodies (12) of the plurality of filter units constitute the multi-layer filter structure as a whole.

4. A flow channel, characterized in that: A first filter screen (21) is provided in the flow channel (3), and the first filter screen (21) is the filter screen (1) according to any one of claims 1 to 3; a plurality of the filter units are sequentially arranged along the extension direction of the flow channel (3), and the head ends and tail ends of the plurality of filter screen supports (11) along the extension direction of the flow channel (3) are relatively arranged in the length direction or width direction of the cross section of the flow channel (3); The single-layer filter structure covers the cross section of the flow channel (3) once, and the multi-layer filter structure covers the cross section of the flow channel (3) at least twice.

5. The flow channel according to claim 4, characterized in that The flow channel (3) includes two first flow channel walls (31) arranged opposite to each other in a first direction (33) and two second flow channel walls (32) arranged opposite to each other in a second direction (34); The head end and the tail end are movably arranged on the two first flow channel walls (31), respectively, and the rotating filter bracket is rotatably arranged on the two second flow channel walls (32) via a rotating shaft (22); The filter screen (1) is configured such that when the rotating filter screen support rotates, the head end and the tail end respectively move relative to the corresponding first flow channel wall (31), thereby enabling the first filter screen (21) to switch between the single-layer filter structure and the multi-layer filter structure; The first direction (33) is one of the length direction and the width direction of the cross section of the flow channel (3), the second direction (34) is the other of the length direction and the width direction of the cross section of the flow channel (3), and the rotating filter support is a rotatably arranged filter support (11).

6. The flow channel according to claim 5, characterized in that The first filter screen (21) is configured such that: when the first filter screen (21) is in the single-layer filtering structure, both ends of the rotating filter screen support in the extension direction of the flow channel (3) are away from the two first flow channel walls (31); when the first filter screen (21) is in the multi-layer filtering structure, both ends of the rotating filter screen support in the extension direction of the flow channel (3) respectively abut against the two first flow channel walls (31).

7. The flow channel according to claim 5, characterized in that The head end and the tail end are respectively slidably arranged on the corresponding first flow channel wall (31), and the sliding directions of the head ends and the tail ends of the plurality of filter screen supports (11) are parallel to the extension direction of the flow channel (3); When the rotating filter screen support is controlled to rotate and the head ends and tail ends of the plurality of filter screen supports (11) as a whole are close to each other, the first filter screen (21) is converted from the single-layer filter structure to the multi-layer filter structure; When the rotating filter screen support is controlled to rotate and the head ends and tail ends of the plurality of filter screen supports (11) as a whole move away from each other, the first filter screen (21) is converted from the multi-layer filter structure to the single-layer filter structure.

8. The flow channel according to claim 5, characterized in that The filtration grades of at least two of the filter bodies (12) of the plurality of filter units are different, and the filtration grade of the filter body (12) located upstream is lower than the filtration grade of the filter body (12) located downstream.

9. The flow channel according to claim 5, characterized in that A second filter screen (4) is provided at the outlet end of the flow channel (3).

10. The flow channel according to claim 5, characterized in that The plurality of filter units include a first filter unit, a second filter unit, and a third filter unit that are sequentially arranged; the filter support (11) of the first filter unit is a first filter support (211), the filter support (11) of the second filter unit is a second filter support (212), and the filter support (11) of the third filter unit is a third filter support (213); The first filter support (211), the second filter support (212) and the third filter support (213) are hingedly connected in sequence; one end of the first filter support (211) away from the second filter support (212) and one of the first flow channel walls (31) are slidably connected via a first sliding rod (214); one end of the third filter support (213) away from the second filter support (212) and another of the first flow channel walls (31) are slidably connected via a second sliding rod (215); the second filter support (212) is rotatably arranged on the two second flow channel walls (32) via two rotating shafts (22); The first filter screen (21) is configured such that: when the second filter screen support (212) is controlled to rotate and both ends of the second filter screen support (212) in the extension direction of the flow channel (3) are away from the two first flow channel walls (31), the first filter screen (21) as a whole forms a single-layer filtering structure; when the second filter screen support (212) is controlled to rotate and both ends of the second filter screen support (212) in the extension direction of the flow channel (3) are respectively in contact with the two first flow channel walls (31), the first filter screen (21) as a whole forms a multi-layer filtering structure.

11. A clothes dryer (5), characterized in that: The air conditioner comprises a base (52), a front support (53), a roller (54), a rear back plate (551) and a rear air shell (552); the base (52) is formed with an air inlet duct (522), a two-device air duct (521) and an air outlet duct (523) which are connected in sequence, the air inlet duct (522) being the flow duct according to any one of claims 4 to 10; an evaporator (561) and a condenser (562) are provided in the two-device air duct (521); The front support (53), the roller (54) and the back plate (551) are all arranged on the base (52), and the front support (53) is arranged in front of the roller (54), and the front support (53) forms a front air duct (531); the back plate (551) is arranged behind the roller (54), and the rear air shell (552) is buckled on the back plate (551), and the rear air shell (552) and the back plate (551) are surrounded to form a rear air duct (553); the rear wall of the roller (54) is formed with an air inlet, and the air inlet is communicated with the interior of the roller (54); The front air duct (531) is connected to the drum mouth of the drum (54) and the air inlet duct (522), and the rear air duct (553) is connected to the air inlet and the air outlet duct (523), so that the drum (54), the front air duct (531), the air inlet duct (522), the two-device air ducts (521), the air outlet duct (523) and the rear air duct (553) are connected in sequence to form a drying circuit; the drying air flow can circulate in the drying circuit.

12. A method for controlling a clothes dryer, wherein the clothes dryer is the clothes dryer (5) according to claim 11; characterized in that: When the clothes dryer (5) runs a drying program, the control method includes: Determining the material type of the clothing inside the drum (54); According to the material type of the clothes inside the drum (54), controlling the first filter (21) as a whole to form a filtering structure corresponding to the material type of the clothes inside the drum (54); The filtering structure corresponding to the material type of the clothes inside the drum (54) includes a single-layer filtering structure and a multi-layer filtering structure.

13. The control method for a clothes dryer according to claim 12, wherein: According to the material type of the clothes inside the drum (54), controlling the first filter (21) as a whole to form a filtering structure corresponding to the material type of the clothes inside the drum (54) comprises: When the material type of the clothes inside the drum (54) is a material type that is not easy to shed lint, the first filter screen (21) is controlled to form a single-layer filtering structure as a whole; When the material type of the clothes inside the drum (54) is a material type that easily sheds lint, the first filter screen (21) is controlled to form a multi-layer filter structure as a whole.

14. The control method of the clothes dryer according to claim 12, characterized in that: According to the material type of the clothes inside the drum (54), controlling the first filter (21) as a whole to form a filtering structure corresponding to the material type of the clothes inside the drum (54) comprises: When the material type of the clothes inside the drum (54) includes at least one of silk and chemical fiber, the filter screen support (11) of each filter unit is controlled to be in an unfolded state, so that the first filter screen (21) as a whole forms a single-layer filter structure; When the material type of the clothes inside the drum (54) includes at least one of cotton, linen and wool, the filter screen supports (11) of at least two filter units are controlled to be in a stacked state, so that the first filter screen (21) as a whole forms a multi-layer filter structure.

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