Flow channel, clothes dryer and control method

Abstract

The invention provides a flow channel, a clothes dryer and a control method, a plurality of movable first filtering units are arranged in the flow channel, and the first filtering units are sequentially arranged in the extending direction of the flow channel; a non-movable second filtering unit is arranged at the outlet of the flow channel; each first filtering unit has a filtering state for filtering the flowing fluid and a non-filtering state for not filtering the flowing fluid; the first filtering units and the second filtering units integrally form a single-layer filtering structure, and the single-layer filtering structure filters flowing fluid once; the first filter units and the second filter units integrally form a multi-layer filter structure, and the multi-layer filter structure filters flowing fluid for at least two times; the states of the first filtering units can be flexibly adjusted according to the filtering requirement, so that the first filtering units and the second filtering units integrally form a corresponding filtering structure, and the filtering effect and the fluid flow speed are both considered.

Description

Technical Field

[0001] The present invention belongs to the technical field of filtration, and in particular relates to 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 flow channel, a clothes dryer and a control method to solve the problem that the filter in the flow channel in the prior art cannot take into account both the filtering effect and the fluid flow rate.

[0004] The present invention provides a flow channel, wherein a plurality of movable first filter units are provided in the flow channel, and the plurality of first filter units are sequentially arranged along the extension direction of the flow channel; each first filter unit has a filtering state for filtering a fluid flowing therethrough and a non-filtering state for not filtering the fluid flowing therethrough; an immovable second filter unit is provided at the outlet of the flow channel;

[0005] When the plurality of first filter units are all in the non-filtering state, the plurality of first filter units and the second filter unit form a single-layer filter structure as a whole, and the single-layer filter structure filters the fluid flowing through once;

[0006] When at least one of the plurality of first filter units is in the filtering state, the plurality of first filter units and the second filter unit form a multi-layer filtering structure as a whole, and the multi-layer filtering structure filters the fluid flowing therethrough at least twice.

[0007] Further optionally, each of the first filter units includes a filter support and a filter body disposed on the filter support, and the filter support is rotatably disposed in the flow channel;

[0008] The filter holder is configured such that: when the filter holder is rotated until the projection of the filter holder in the extension direction of the flow channel covers the cross-section of the flow channel, the first filter unit is in the filtering state; when the filter holder is rotated until the extension direction of the filter holder is parallel to the extension direction of the flow channel, the first filter unit is in the non-filtering state.

[0009] Further optionally, a transmission mechanism is provided outside the flow channel, and the transmission mechanism includes a first transmission member and a second transmission member; a plurality of first transmission members are provided, and the plurality of first transmission members are sequentially arranged along the extension direction of the flow channel; the plurality of first transmission members and the plurality of filter screen supports are arranged in a one-to-one correspondence and are transmission-connected;

[0010] The second transmission member is in transmission connection with the plurality of the first transmission members and satisfies the following conditions: the second transmission member can only be in transmission connection with one of the plurality of the first transmission members at any time;

[0011] When the second transmission member moves, it can drive multiple first transmission members to move in sequence, thereby causing the corresponding filter brackets to rotate.

[0012] Further optionally, the second transmission member is formed with a plurality of slave transmission structures, and the plurality of slave transmission structures are sequentially arranged along the extension direction of the flow channel; the plurality of slave transmission structures and the plurality of first transmission members are arranged in one-to-one correspondence and are in transmission connection;

[0013] Along the extension direction of the flow channel from the inlet to the outlet of the flow channel, the distance between the rotating shafts of two adjacent filter supports is equal, and the distance between two adjacent slave transmission structures gradually increases;

[0014] When the second transmission member moves, the plurality of first transmission members can be driven to move in sequence through the plurality of slave transmission structures.

[0015] Further optionally, a plurality of axial holes are formed on the side wall of the flow channel, and the plurality of axial holes are sequentially arranged along the extension direction of the flow channel;

[0016] The first transmission member is a slave gear, which is rotatably arranged on the side wall of the flow channel; a plurality of the filter holders, a plurality of the slave gears, and a plurality of the shaft holes are arranged in a one-to-one correspondence; a rotating shaft is arranged in each of the shaft holes, and the filter holder and the slave gear are connected to each other through the corresponding rotating shaft;

[0017] The second transmission member is a rack, which is slidably disposed on the side wall of the flow channel and has a sliding direction parallel to an extension direction of the flow channel; the slave transmission structure is a slave tooth segment, and a plurality of the slave tooth segments are meshed with a plurality of the slave gears;

[0018] When the rack slides, the slave gear segment can drive the corresponding slave gear to rotate.

[0019] Further optionally, the transmission mechanism includes a third transmission member; a plurality of the first transmission members as a whole and the third transmission members are arranged at intervals in the extension direction of the flow channel; the third transmission member is a main gear, and the main gear is rotatably arranged on the side wall of the flow channel;

[0020] The second transmission member further forms a main transmission structure, wherein the main transmission structure comprises a main tooth segment, and the main tooth segment is engaged with the main gear;

[0021] When the main gear rotates, the rack slides.

[0022] Further optionally, the plurality of filter supports include a first filter support, a second filter support, and a third filter support; the plurality of gears include a slave gear A, a slave gear B, and a slave gear C sequentially arranged along the extension direction of the flow channel; and the rack is formed with a slave gear segment a, a slave gear segment b, and a slave gear segment c sequentially arranged along the extension direction of the flow channel;

[0023] The slave gear A is connected to the first filter holder via a corresponding rotating shaft, the slave gear B is connected to the second filter holder via a corresponding rotating shaft, and the slave gear C is connected to the second filter holder via a corresponding rotating shaft;

[0024] When the rack slides from the inlet to the outlet of the flow channel, the meshing order of the rack and the slave gear is as follows: first, the slave gear segment a meshes with the gear A, then the slave gear segment b meshes with the slave gear B, and finally the slave gear segment c meshes with the slave gear C.

[0025] Further optionally, the flow channel includes two first flow channel walls arranged opposite to each other in the first direction and two second flow channel walls arranged opposite to each other in the second direction; the filter support includes two first support walls arranged opposite to each other in the first direction and two second support walls arranged opposite to each other in the second direction;

[0026] The two first bracket walls are rotatably arranged on the two first flow channel walls via the two rotating shafts;

[0027] When the first filter unit is in the filtering state, the two second bracket walls respectively abut against the two second flow channel walls; when the first filter unit is in the non-filtering state, the two second bracket walls are both away from the two second flow channel walls;

[0028] The first direction is one of a length direction and a width direction of a cross section of the flow channel, and the second direction is the other of the length direction and the width direction of the cross section of the flow channel.

[0029] Further optionally, a plurality of axial holes are formed on the side wall of the flow channel, and the plurality of axial holes are sequentially arranged along the extension direction of the flow channel;

[0030] The first transmission member is a slave gear, which is rotatably arranged on the side wall of the flow channel; a plurality of the filter holders, a plurality of the slave gears, and a plurality of the shaft holes are arranged in a one-to-one correspondence; a rotating shaft is arranged in each of the shaft holes, and the filter holder and the slave gear are connected to each other through the corresponding rotating shaft;

[0031] The second transmission member is a belt, the outer side of the belt is formed with the slave transmission structure, the slave transmission structure is a belt outer tooth segment, and the belt outer tooth segment is meshed with the slave gear; the inner side of the belt is formed with a belt inner tooth ring;

[0032] The transmission mechanism includes a fourth transmission member, which includes a main pulley and a slave pulley. The main pulley and the slave pulley are both rotatably arranged on the side wall of the flow channel and are both formed with gear teeth. The belt is arranged around the outside of the main pulley and the slave pulley, and the inner gear ring of the belt is meshed with the gear teeth of the main pulley and the gear teeth of the slave pulley.

[0033] When the main pulley rotates, the belt moves in a circular motion and drives the slave gear to rotate.

[0034] Further optionally, the filtration grades of at least two of the plurality of first filter units are different, and the filtration grade of the upstream filter unit is lower than the filtration grade of the downstream filter unit.

[0035] 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;

[0036] 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;

[0037] 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.

[0038] The present invention further provides a control method for a clothes dryer, wherein the clothes dryer is the clothes dryer described above; wherein when the clothes dryer runs a drying program, the control method comprises:

[0039] Determining the material type of the clothing inside the drum;

[0040] According to the material type of the drum underwear, controlling the plurality of first filter units and the second filter units to form a filter structure corresponding to the material type of the drum underwear;

[0041] 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.

[0042] Further optionally, controlling the plurality of first filter units and the second filter units to integrally form a filter structure corresponding to the material type of the drum underwear according to the material type of the drum underwear comprises:

[0043] 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;

[0044] 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.

[0045] Further optionally, controlling the plurality of first filter units and the second filter units to integrally form a filter structure corresponding to the material type of the drum underwear according to the material type of the drum underwear comprises:

[0046] When the material type of the drum-type underwear includes at least one of silk and chemical fiber, the plurality of first filter units are controlled to be in the non-filtering state, so that the plurality of first filter units and the second filter units form a single-layer filtering structure as a whole;

[0047] When the material type of the drum underwear includes wool, one of the plurality of first filter units is controlled to be in the filtering state, so that the plurality of first filter units and the second filter units form a two-layer filtering structure as a whole; or two of the plurality of first filter units are controlled to be in the filtering state, so that the plurality of first filter units and the second filter units form a three-layer filtering structure as a whole;

[0048] When the material type of the drum underwear includes cotton and linen, three of the plurality of first filter units are controlled to be in the filtering state, so that the plurality of first filter units and the second filter unit form a four-layer filtering structure as a whole;

[0049] The multi-layer filter structure includes a double-layer filter structure, a three-layer filter structure and a four-layer filter structure.

[0050] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0051] The state of the first filter unit can be flexibly adjusted according to the filtering needs, so that the plurality of first filter units and the second filter unit form a corresponding filtering structure as a whole, taking into account both the filtering effect and the fluid flow rate;

[0052] When the multiple first filter units are all in a non-filtering state, the multiple first filter units and the second filter units form a single-layer filter structure as a whole, and the single-layer filter structure filters the fluid flowing through once; when at least one of the multiple first filter units is in a filtering state, the multiple first filter units and the second filter units form a multi-layer filter structure as a whole, and the multi-layer filter structure filters the fluid flowing through at least twice. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] 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.

[0054] 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.

[0055] Figure 1 A schematic structural diagram of a first filter unit embodiment 1 provided by the present invention;

[0056] Figure 2a and Figure 2b A schematic structural diagram of a single-layer filtration structure formed by a plurality of first filtration units and a second filtration unit provided by the present invention in accordance with Embodiment 1;

[0057] Figure 3a and Figure 3b A schematic structural diagram of a first embodiment of a double-layer filter structure formed by a plurality of first filter units and a second filter unit provided by the present invention;

[0058] Figure 4a and Figure 4b A schematic structural diagram of Embodiment 1 of the present invention showing a three-layer filter structure formed by a plurality of first filter units and second filter units as a whole;

[0059] Figure 5a and Figure 5bA schematic structural diagram of a first embodiment of a four-layer filter structure formed by a plurality of first filter units and a second filter unit provided by the present invention;

[0060] Figure 6a and Figure 6b A schematic structural diagram of a rack embodiment 1 provided by the present invention;

[0061] Figure 7a Schematic diagram of the assembly structure of the drive motor, third transmission member, second transmission member, guide rail and flow channel embodiment 1 provided by the present invention;

[0062] Figure 7b for Figure 7a Enlarged view of point A in the middle;

[0063] Figure 8a Schematic diagram of the assembly structure of the flow channel and the first filter unit embodiment 1 provided by the present invention;

[0064] Figure 8b Schematic diagram of the assembly structure of the flow channel and the second filter unit embodiment 1 provided by the present invention;

[0065] Figure 9a and Figure 9b A schematic structural diagram of a second embodiment of a single-layer filtration structure formed by a plurality of first filtration units and a second filtration unit provided by the present invention;

[0066] Figure 10a and Figure 10b A schematic structural diagram of a second embodiment of a four-layer filter structure formed by a plurality of first filter units and second filter units provided by the present invention;

[0067] Figure 11a This is a schematic diagram of the axial structure of an embodiment of a clothes dryer provided by the present invention;

[0068] Figure 11b A schematic cross-sectional view of an embodiment of a clothes dryer provided by the present invention;

[0069] Figure 11c A rear structural diagram of an embodiment of a clothes dryer provided by the present invention;

[0070] Figure 12 A schematic flow chart of an embodiment of a control method for a clothes dryer provided by the present invention;

[0071] In the picture:

[0072] 1-first filter unit; 11-filter bracket; 111-first bracket wall; 112-second bracket wall; 12-filter body; 131-first filter bracket; 132-second filter bracket; 133-third filter bracket;

[0073] 2- second filter unit;

[0074] 3 - Transmission mechanism; 31 - First transmission member; 311 - Slave gear A; 312 - Slave gear B; 313 - Slave gear C; 32 - Second transmission member; 321 - Main transmission structure; 322 - Slave transmission structure; 3221 - Slave gear segment a; 3222 - Slave gear segment b; 3223 - Slave gear segment c; 3224 - Outer belt tooth segment; 3225 - Inner belt gear ring; 33 - Third transmission member; 34 - Fourth transmission member; 35 - Rotating shaft; 36 - Drive motor;

[0075] 4-flow channel; 41-first flow channel wall; 42-second flow channel wall; 43-first direction; 44-second direction; 45-slide rail; 451-slide groove.

[0076] 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

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] The present invention creatively provides a flow channel, wherein a plurality of movable first filter units are provided in the flow channel, and the plurality of first filter units are arranged in sequence along the extension direction of the flow channel; an immovable second filter unit is provided at the outlet of the flow channel; each first filter unit has a filtering state for filtering the fluid flowing therethrough and a non-filtering state for not filtering the fluid flowing therethrough;

[0083] Multiple first filter units and second filter units form a single-layer filter structure as a whole, and the single-layer filter structure filters the fluid flowing through once; multiple first filter units and second filter units form a multi-layer filter structure as a whole, 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 fluid quality and flow rate.

[0084] Example 1

[0085] <Runner>

[0086] like Figures 1 to 8b As shown, this embodiment provides a flow channel 4, in which a plurality of movable first filter units 1 are provided. The plurality of first filter units 1 are sequentially arranged along the extension direction of the flow channel 4; each first filter unit 1 has a filtering state for filtering the fluid flowing therethrough and a non-filtering state for not filtering the fluid flowing therethrough; an immovable second filter unit 2 is provided at the outlet of the flow channel 4 to ensure that the fluid in the flow channel 4 is filtered by at least the second filter unit 2;

[0087] When the plurality of first filter units 1 are all in a non-filtering state, the plurality of first filter units 1 and the second filter unit 2 form a single-layer filter structure as a whole, and the single-layer filter structure filters the fluid flowing through once; that is, only the second filter unit 2 forms a single-layer filter structure, and filters the fluid flowing through once;

[0088] When at least one of the plurality of first filter units 1 is in a filtering state, the plurality of first filter units 1 and the second filter unit 2 form a multi-layer filtering structure as a whole, and the multi-layer filtering structure filters the fluid flowing therethrough at least twice;

[0089] Specifically, the number of first filter units 1 in the filtering state determines the number of times the multi-layer filter structure filters the fluid flowing through; for example, when the number of first filter units 1 in the filtering state is one, the multi-layer filter structure filters the fluid flowing through twice; when the number of first filter units 1 in the filtering state is two, the multi-layer filter structure filters the fluid flowing through three times; when the number of first filter units 1 in the filtering state is three, the multi-layer filter structure filters the fluid flowing through four times; by adjusting the state of the first filter unit 1, different layers of filter structures can be formed.

[0090] Furthermore, each first filter unit 1 includes a filter support 11 and a filter body 12 disposed on the filter support 11. The filter support 11 is rotatably disposed in the flow channel 4. Each filter support 11 can be controlled to rotate independently.

[0091] The filter holder 11 is configured as follows: when the filter holder 11 is rotated until the projection of the filter holder 11 in the extension direction of the flow channel 4 covers the cross-section of the flow channel 4, the first filter unit 1 is in a filtering state; when the filter holder 11 is rotated until the extension direction of the filter holder 11 is parallel to the extension direction of the flow channel 4, the first filter unit 1 is in a non-filtering state.

[0092] Specifically, according to the filtering requirements, the rotatable filter holder 11 is controlled to rotate, so that the first filter units 1 and the second filter units 2 can form a single-layer filtering structure or a multi-layer filtering structure as a whole, thereby taking into account both the filtering effect and the flow rate of the fluid;

[0093] When the fluid flowing through the flow channel 4 has fewer impurities, the multiple first filter units 1 and the second filter units 2 can form a single-layer filter structure as a whole; when the fluid flowing through the flow channel 4 has more impurities, the multiple first filter units 1 and the second filter units 2 can form a multi-layer filter structure as a whole.

[0094] Further explaining the structure required for the rotation of the filter holder 11, a transmission mechanism 3 is provided on the outside of the flow channel 4, and the transmission mechanism 3 includes a first transmission member 31 and a second transmission member 32; a plurality of first transmission members 31 are provided, and the plurality of first transmission members 31 are sequentially arranged along the extension direction of the flow channel 4; the plurality of first transmission members 31 are arranged in a one-to-one correspondence with the plurality of filter holders 11 and are transmission-connected;

[0095] The second transmission member 32 is in transmission connection with the plurality of first transmission members 31 and satisfies the following conditions: the second transmission member 32 can only be in transmission connection with one of the plurality of first transmission members 31 at any time;

[0096] When the second transmission member 32 moves, it can drive the multiple first transmission members 31 to move in sequence, thereby causing the corresponding filter holders 11 to rotate.

[0097] Furthermore, the second transmission member 32 is formed with a plurality of slave transmission structures 322 , which are sequentially arranged along the extension direction of the flow channel 4 ; the plurality of slave transmission structures 322 are arranged in one-to-one correspondence with the plurality of first transmission members 31 and are in transmission connection;

[0098] Along the extension direction of the flow channel 4 from the inlet to the outlet of the flow channel 4, the distance between the rotating shafts 35 of two adjacent filter brackets 11 is equal, and the distance between two adjacent slave transmission structures 322 gradually increases;

[0099] When the second transmission member 32 moves, the multiple first transmission members 31 can be driven to move in sequence through the multiple slave transmission structures 322 .

[0100] The specific structure of the transmission mechanism 3 is further described below. The side wall of the flow channel 4 is formed with a plurality of axial holes, and the plurality of axial holes are sequentially arranged along the extension direction of the flow channel 4.

[0101] The first transmission member 31 is a slave gear, which is rotatably disposed on the side wall of the flow channel 4; a plurality of filter holders 11, a plurality of slave gears, and a plurality of shaft holes are disposed in a one-to-one correspondence; a rotating shaft 35 is disposed in each shaft hole, and the filter holder 11 and the slave gear are connected in a transmission manner via the corresponding rotating shaft 35;

[0102] The second transmission member 32 is a rack, which is slidably disposed on the side wall of the flow channel 4 and the sliding direction of the rack is parallel to the extension direction of the flow channel 4; the slave transmission structure 322 is a slave tooth segment, and a plurality of slave tooth segments are meshed with a plurality of slave gears;

[0103] When the rack slides, the slave gear segment can drive the corresponding slave gear to rotate.

[0104] Furthermore, the transmission mechanism 3 includes a third transmission member 33; a plurality of first transmission members 31 as a whole and the third transmission members 33 are arranged at intervals in the extension direction of the flow channel 4; the third transmission member 33 is a main gear, and the main gear is rotatably arranged on the side wall of the flow channel 4;

[0105] The second transmission member 32 further forms a main transmission structure 321 , wherein the main transmission structure 321 is a main tooth segment, and the main tooth segment is meshed with the main gear;

[0106] When the main gear rotates, the rack slides; specifically, the main gear is connected to the drive motor 36; when the drive motor 36 is running, the main gear rotates, the rack slides, and the slave gear segment can drive the corresponding slave gear to rotate, and then the corresponding filter bracket 11 rotates, so that the multiple first filter units 1 and the second filter units 2 as a whole can be converted between a single-layer filter structure and a multi-layer filter structure;

[0107] The axial hole can be located in the middle of the side wall of the flow channel 4, or close to the edge of the side wall of the flow channel 4; when the axial hole is located in the middle of the side wall of the flow channel 4, when the filter holder 11 is rotated until the extension direction of the filter holder 11 is parallel to the extension direction of the flow channel 4, the filter holder 11 is located in the middle area of ​​the flow channel 4; when the axial hole is close to the edge of the side wall of the flow channel 4, when the filter holder 11 is rotated until the extension direction of the filter holder 11 is parallel to the extension direction of the flow channel 4, the filter holder 11 is abutted on the other side wall connected to the side wall.

[0108] The following is further described using an example in which three first filter units 1 are provided. The multiple filter holders 11 include a first filter holder 131, a second filter holder 132, and a third filter holder 133. The multiple gears include a slave gear A311, a slave gear B312, and a slave gear C313 sequentially arranged along the extension direction of the flow channel 4. The rack includes a slave gear segment a3221, a slave gear segment b3222, and a slave gear segment c3223 sequentially arranged along the extension direction of the flow channel 4.

[0109] The slave gear A311 is connected to the first filter holder 131 via the corresponding rotating shaft 35, the slave gear B312 is connected to the second filter holder 132 via the corresponding rotating shaft 35, and the slave gear C313 is connected to the third filter holder 133 via the corresponding rotating shaft 35;

[0110] When the rack slides from the inlet to the outlet of the flow channel 4, the meshing order of the rack and the slave gear is as follows: the slave tooth segment a3221 meshes with the slave gear A311 first, then the slave tooth segment b3222 meshes with the slave gear B312, and finally the slave tooth segment c3223 meshes with the slave gear C313.

[0111] Specifically, the length of the main tooth segment is the longest and the length of the main tooth segment is L1, the lengths of the slave tooth segment a3221, the slave tooth segment b3222 and the slave tooth segment c3223 are the same, and the length of the slave tooth segment a3221 is L2, satisfying: L1≥(N+1)L2, N is the number of first filter units 1; for example: when the first filter units 1 include three, L1≥4*L2; when the first filter units 1 include two, L1≥3*L2.

[0112] The distance between the secondary tooth segment a3221 and the secondary tooth segment b3222 is L3, and the distance between the secondary tooth segment b3222 and the secondary tooth segment c3223 is L4; satisfying: L3 = 2*L2, L4 = 3*L2;

[0113] Furthermore, the flow channel 4 includes two first flow channel walls 41 disposed opposite to each other in a first direction 43 and two second flow channel walls 42 disposed opposite to each other in a second direction 44; the filter support 11 includes two first support walls 111 disposed opposite to each other in the first direction 43 and two second support walls 112 disposed opposite to each other in the second direction 44;

[0114] The two first bracket walls 111 are rotatably mounted on the two first flow channel walls 41 via two rotating shafts 35. One of the first flow channel walls 41 is provided with a slide rail 45, which is formed with a slide groove 451. The extension direction of the slide groove 451 is parallel to the extension direction of the flow channel 4. The rack is slidably mounted in the slide groove 451 and can slide along the slide groove 451.

[0115] When the first filter unit 1 is in a filtering state, the two second bracket walls 112 respectively abut against the two second flow channel walls 42 ; when the first filter unit 1 is in a non-filtering state, the two second bracket walls 112 are away from the two second flow channel walls 42 ;

[0116] The first direction 43 is one of the length direction and the width direction of the cross section of the flow channel 4 , and the second direction 44 is the other of the length direction and the width direction of the cross section of the flow channel 4 .

[0117] In addition, the filtration levels of at least two of the multiple first filter units 1 are different, and the filtration level of the upstream filter unit is lower than the filtration level of the downstream filter unit; when the fluid flows through the multiple first filter units 1, the fluid in the flow channel 4 is gradually filtered by the filter bodies 12 of the multiple first filter units 1, thereby improving the filtration effect and ensuring the quality of the fluid; specifically, the filtration level includes the mesh number of the filter, and if the filtration levels are different, the mesh number of the filter is different.

[0118] <Clothes Dryer>

[0119] like Figures 11a to 11c As shown, this embodiment provides a clothes dryer 5, including a base 52, a front support 53, a drum 54, a 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 connected in sequence, and the air inlet duct 522 is any of the flow channels 4 described above; the two-device air duct 521 is provided with an evaporator 561 and a condenser 562;

[0120] 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;

[0121] 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.

[0122] 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.

[0123] 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.

[0124] <Control Method>

[0125] like Figure 12 As shown, this embodiment provides a control method for a clothes dryer 5, where the clothes dryer 5 is the clothes dryer 5 described above. When the clothes dryer 5 runs a drying program, the control method includes:

[0126] S1. Determine the material type of the clothes inside the drum 54;

[0127] S2. According to the material type of the clothes inside the drum 54, the plurality of first filter units 1 and the second filter units 2 are controlled to form a filter structure corresponding to the material type of the clothes inside the drum 54;

[0128] The filtering structures corresponding to the material type of the clothes in the drum 54 include a single-layer filtering structure and a multi-layer filtering structure.

[0129] Furthermore, S2 includes:

[0130] S21, when the material type of the clothes in the drum 54 is a type that is not easy to shed lint, the first filter unit 1 is controlled to form a single-layer filter structure as a whole;

[0131] S22. When the material type of the clothes in the drum 54 is a material type that easily sheds lint, the first filter unit 1 is controlled to form a multi-layer filter structure as a whole.

[0132] S21 includes: when the material type of the clothes in the drum 54 includes at least one of silk and chemical fiber, controlling the plurality of first filter units 1 to be in a non-filtering state, so that the plurality of first filter units 1 and the second filter units 2 form a single-layer filtering structure as a whole;

[0133] S22 includes: when the material type of the clothes inside the drum 54 includes wool, controlling one of the plurality of first filter units 1 to be in a filtering state, so that the plurality of first filter units 1 and the second filter units 2 form a two-layer filtering structure as a whole; or controlling two of the plurality of first filter units 1 to be in a filtering state, so that the plurality of first filter units 1 and the second filter units 2 form a three-layer filtering structure as a whole;

[0134] When the material type of the clothes inside the drum 54 includes cotton and linen, three of the plurality of first filter units 1 are controlled to be in a filtering state, so that the plurality of first filter units 1 and the second filter unit 2 form a four-layer filtering structure as a whole;

[0135] Among them, the multi-layer filtering structure includes a double-layer filtering structure, a three-layer filtering structure and a four-layer filtering structure.

[0136] Example 2

[0137] like Figure 9a and Figure 10b As shown, the difference from embodiment 1 is that this embodiment proposes that the side wall of the flow channel 4 is formed with multiple axial holes, and the multiple axial holes are sequentially arranged along the extension direction of the flow channel 4;

[0138] The first transmission member 31 is a slave gear, which is rotatably disposed on the side wall of the flow channel 4; a plurality of filter holders 11, a plurality of slave gears, and a plurality of shaft holes are disposed in a one-to-one correspondence; a rotating shaft 35 is disposed in each shaft hole, and the filter holder 11 and the slave gear are connected in a transmission manner via the corresponding rotating shaft 35;

[0139] The second transmission member 32 is a belt, and a slave transmission structure 322 is formed on the outer side of the belt. The slave transmission structure 322 is a belt outer tooth segment 3224, and the belt outer tooth segment 3224 is meshed with the slave gear; the inner side of the belt is formed with a belt inner tooth ring 3225;

[0140] The transmission mechanism 3 includes a fourth transmission member 34, which includes a main pulley and a slave pulley. The main pulley and the slave pulley are both rotatably arranged on the side wall of the flow channel 4 and are both formed with gear teeth. A belt is arranged around the outside of the main pulley and the slave pulley, and the inner gear ring 3225 of the belt is meshed with the gear teeth of the main pulley and the gear teeth of the slave pulley.

[0141] When the main pulley rotates, the belt moves in a circular motion and drives the slave gear to rotate;

[0142] Specifically, when the belt moves in a circular motion in the counterclockwise direction, the outer tooth segment 3224 of the belt engages with the slave gear in sequence, thereby causing the corresponding filter bracket 11 to rotate, and the filter bracket 11 is converted from the filtering state to the non-filtering state; when the belt moves in a circular motion in the clockwise direction, the outer tooth segment 3224 of the belt engages with the slave gear in sequence, thereby causing the corresponding filter bracket 11 to rotate, and the filter bracket 11 is converted from the non-filtering state to the filtering state.

[0143] Example 3

[0144] Unlike the first embodiment, this embodiment provides a control method for a clothes dryer 5. The clothes dryer 5 is the clothes dryer 5 described above. When the clothes dryer 5 runs a drying program, the control method includes:

[0145] P1. Determine the parameters of the lint in the air inlet duct 522;

[0146] P2. Determine the target filtering structure based on the lint parameters in the air inlet duct 522;

[0147] P3, controlling the plurality of first filter units 1 and the second filter units 2 to form a target filter structure as a whole;

[0148] The lint parameters include at least one of a lint size distribution range and a lint quantity, and the target filter structure includes a single-layer filter structure and a multi-layer filter structure;

[0149] Furthermore, P2 includes:

[0150] When the size distribution range of the lint is narrow and / or the number of lint is small, the target filtration structure is a single-layer filtration structure;

[0151] When the size distribution range of the lint is wide and / or the number of lint is large, the target filtration structure is a multi-layer filtration structure.

[0152] It should be noted that the names of slave gear A, slave gear B and slave gear C are all used to distinguish slave gears at different positions, and do not limit the structure and function of the slave gears; the names of slave gear segments a, slave gear segment b and slave gear segment c are all used to distinguish slave gear segments at different positions, and do not limit the structure and function of the slave gear segments.

[0153] 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 flow channel, characterized in that: A plurality of movable first filter units (1) are provided in the flow channel (4), and the plurality of first filter units (1) are sequentially arranged along the extension direction of the flow channel (4); each of the first filter units (1) has a filtering state for filtering the fluid flowing therethrough and a non-filtering state for not filtering the fluid flowing therethrough; an immovable second filter unit (2) is provided at the outlet of the flow channel (4); When the plurality of first filter units (1) are all in the non-filtering state, the plurality of first filter units (1) and the second filter unit (2) form a single-layer filter structure as a whole, and the single-layer filter structure filters the fluid flowing through once; When at least one of the plurality of first filter units (1) is in the filtering state, the plurality of first filter units (1) and the second filter unit (2) form a multi-layer filtering structure as a whole, and the multi-layer filtering structure filters the fluid flowing through at least twice.

2. The flow channel according to claim 1, characterized in that Each of the first filter units (1) comprises a filter support (11) and a filter body (12) arranged on the filter support (11), and the filter support (11) is rotatably arranged in the flow channel (4); The filter support (11) is configured such that: when the filter support (11) is rotated until the projection of the filter support (11) in the extension direction of the flow channel (4) covers the cross section of the flow channel (4), the first filter unit (1) is in the filtering state; and when the filter support (11) is rotated until the extension direction of the filter support (11) and the extension direction of the flow channel (4) are parallel, the first filter unit (1) is in the non-filtering state.

3. The flow channel according to claim 2, characterized in that A transmission mechanism (3) is provided outside the flow channel (4), and the transmission mechanism (3) includes a first transmission member (31) and a second transmission member (32); a plurality of the first transmission members (31) are provided, and the plurality of the first transmission members (31) are sequentially arranged along the extension direction of the flow channel (4); the plurality of the first transmission members (31) and the plurality of the filter screen supports (11) are arranged in a one-to-one correspondence and are in transmission connection; The second transmission member (32) is in transmission connection with the plurality of the first transmission members (31) and satisfies the following conditions: at any moment, the second transmission member (32) can only be in transmission connection with one of the plurality of the first transmission members (31); When the second transmission member (32) moves, it can sequentially drive the plurality of first transmission members (31) to move, thereby causing the corresponding filter brackets (11) to rotate.

4. The flow channel according to claim 3, characterized in that The second transmission member (32) is formed with a plurality of slave transmission structures (322), and the plurality of slave transmission structures (322) are sequentially arranged along the extension direction of the flow channel (4); the plurality of slave transmission structures (322) and the plurality of first transmission members (31) are arranged in a one-to-one correspondence and are transmission-connected; Along the extension direction of the flow channel (4) from the inlet to the outlet of the flow channel (4), the spacing between the rotating shafts (35) of two adjacent filter screen supports (11) is equal, and the spacing between two adjacent slave transmission structures (322) gradually increases; When the second transmission member (32) moves, the plurality of the first transmission members (31) can be driven to move in sequence through the plurality of slave transmission structures (322).

5. The flow channel according to claim 4, characterized in that The side wall of the flow channel (4) is formed with a plurality of axial holes, and the plurality of axial holes are sequentially arranged along the extension direction of the flow channel (4); The first transmission member (31) is a slave gear, which is rotatably arranged on the side wall of the flow channel (4); a plurality of the filter holders (11), a plurality of the slave gears, and a plurality of the shaft holes are arranged in a one-to-one correspondence; a rotating shaft (35) is arranged in each of the shaft holes, and the filter holders (11) and the slave gears are connected in a transmission manner via the corresponding rotating shaft (35); The second transmission member (32) is a rack, which is slidably arranged on the side wall of the flow channel (4) and the sliding direction of the rack is parallel to the extension direction of the flow channel (4); the slave transmission structure (322) is a slave tooth segment, and a plurality of the slave tooth segments are meshed with a plurality of the slave gears; When the rack slides, the slave gear segment can drive the corresponding slave gear to rotate.

6. The flow channel according to claim 5, characterized in that The transmission mechanism (3) includes a third transmission member (33); a plurality of the first transmission members (31) as a whole and the third transmission members (33) are arranged at intervals in the extension direction of the flow channel (4); the third transmission member (33) is a main gear, and the main gear is rotatably arranged on the side wall of the flow channel (4); The second transmission member (32) further forms a main transmission structure (321), wherein the main transmission structure (321) is a main tooth segment, and the main tooth segment is meshed with a main gear; When the main gear rotates, the rack slides.

7. The flow channel according to claim 5, characterized in that The plurality of filter screen supports (11) include a first filter screen support (131), a second filter screen support (132), and a third filter screen support (133); the plurality of gears include a slave gear A (311), a slave gear B (312), and a slave gear C (313) sequentially arranged along the extension direction of the flow channel (4); and the rack is formed with a slave gear segment a (3221), a slave gear segment b (3222), and a slave gear segment c (3223) sequentially arranged along the extension direction of the flow channel (4); The slave gear A (311) and the first filter holder (131) are connected via a corresponding rotating shaft (35), the slave gear B (312) and the second filter holder (132) are connected via a corresponding rotating shaft (35), and the slave gear C (313) and the third filter holder (133) are connected via a corresponding rotating shaft (35); When the rack slides from the inlet to the outlet of the flow channel (4), the meshing order of the rack and the slave gear satisfies: first, the slave gear segment a (3221) meshes with the slave gear A (311), then the slave gear segment b (3222) meshes with the slave gear B (312), and finally the slave gear segment c (3223) meshes with the slave gear C (313).

8. The flow channel according to claim 5, characterized in that The flow channel (4) comprises two first flow channel walls (41) arranged opposite to each other in a first direction (43) and two second flow channel walls (42) arranged opposite to each other in a second direction (44); the filter support (11) comprises two first support walls (111) arranged opposite to each other in the first direction (43) and two second support walls (112) arranged opposite to each other in the second direction (44); The two first bracket walls (111) are rotatably arranged on the two first flow channel walls (41) via the two rotating shafts (35); When the first filter unit (1) is in the filtering state, the two second bracket walls (112) respectively abut against the two second flow channel walls (42); when the first filter unit (1) is in the non-filtering state, the two second bracket walls (112) are both away from the two second flow channel walls (42); The first direction (43) is one of the length direction and the width direction of the cross section of the flow channel (4), and the second direction (44) is the other of the length direction and the width direction of the cross section of the flow channel (4).

9. The flow channel according to claim 4, characterized in that The side wall of the flow channel (4) is formed with a plurality of axial holes, and the plurality of axial holes are sequentially arranged along the extension direction of the flow channel (4); The first transmission member (31) is a slave gear, which is rotatably arranged on the side wall of the flow channel (4); a plurality of the filter holders (11), a plurality of the slave gears, and a plurality of the shaft holes are arranged in a one-to-one correspondence; a rotating shaft (35) is arranged in each of the shaft holes, and the filter holders (11) and the slave gears are connected in a transmission manner via the corresponding rotating shaft (35); The second transmission member (32) is a belt, the outer side of the belt is formed with the slave transmission structure (322), the slave transmission structure (322) is a belt outer tooth segment (3224), and the belt outer tooth segment (3224) is meshed with the slave gear; the inner side of the belt is formed with a belt inner tooth ring (3225); The transmission mechanism (3) includes a fourth transmission member (34), and the fourth transmission member (34) includes a main pulley and a slave pulley, and the main pulley and the slave pulley are both rotatably arranged on the side wall of the flow channel (4) and are both formed with gear teeth; the belt is arranged around the outside of the main pulley and the slave pulley, and the inner toothed ring (3225) of the belt is meshed with the gear teeth of the main pulley and the gear teeth of the slave pulley; When the main pulley rotates, the belt moves in a circular motion and drives the slave gear to rotate.

10. The flow channel according to claim 1, wherein The filtering grades of at least two of the plurality of first filtering units (1) are different, and the filtering grade of the upstream one is lower than the filtering grade of the downstream one.

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 1 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 control method for a clothes dryer (5), wherein the clothes dryer (5) 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 underwear in the drum (54), the plurality of first filter units (1) and second filter units (2) are controlled to form a filter structure corresponding to the material type of the underwear in 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 of the clothes dryer (5) according to claim 12, characterized in that: According to the material type of the underwear in the drum (54), controlling the plurality of first filter units (1) and second filter units (2) to form a filter structure corresponding to the material type of the underwear in the drum (54) includes: 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 unit (1) is controlled to form a single-layer filter 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 unit (1) is controlled to form a multi-layer filter structure as a whole.

14. The control method of the clothes dryer (5) according to claim 12, characterized in that: According to the material type of the underwear in the drum (54), controlling the plurality of first filter units (1) and second filter units (2) to form a filter structure corresponding to the material type of the underwear in the drum (54) includes: When the material type of the clothes inside the drum (54) includes at least one of silk and chemical fiber, the plurality of first filter units (1) are controlled to be in the non-filtering state, so that the plurality of first filter units (1) and the second filter units (2) form a single-layer filtering structure as a whole; When the material type of the clothes inside the drum (54) includes wool, one of the plurality of first filter units (1) is controlled to be in the filtering state, so that the plurality of first filter units (1) and the second filter units (2) form a two-layer filtering structure as a whole; or two of the plurality of first filter units (1) are controlled to be in the filtering state, so that the plurality of first filter units (1) and the second filter units (2) form a three-layer filtering structure as a whole; When the material type of the clothes inside the drum (54) includes cotton and linen, three of the plurality of first filter units (1) are controlled to be in the filtering state, so that the plurality of first filter units (1) and the second filter units (2) form a four-layer filtering structure as a whole; The multi-layer filter structure includes a double-layer filter structure, a three-layer filter structure and a four-layer filter structure.

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