Dryer
The dryer's collection device with multiple swirling and mesh sections addresses filter clogging issues by enhancing airflow separation and passage, maintaining efficient drying performance.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
- Filing Date
- 2024-12-03
- Publication Date
- 2026-06-15
Smart Images

Figure 2026096705000001_ABST
Abstract
Description
【Technical Field】 【0001】 The present disclosure relates to a dryer. 【Background Art】 【0002】 For example, Patent Document 1 discloses a dryer including a storage tank for storing clothes, a blower for blowing air into the storage tank, and an air flow path for communicating the storage tank and the blower. 【0003】 In the dryer described in Patent Document 1, a filter for mainly collecting foreign matters such as lint is provided in the middle of the air flow path. 【Prior Art Documents】 【Patent Documents】 【0004】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2009-28564 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0005】 However, since the filter of Patent Document 1 is provided so as to intersect the air flow direction in the air flow path, clogging is likely to occur. If the user of the dryer neglects to clean the filter, it becomes difficult for air to pass through the collection device, and there is a risk that the drying performance will deteriorate. Therefore, there is still room for improvement in terms of suppressing the deterioration of the drying performance. 【0006】 An object of the present disclosure is to solve the above problems and to suppress a decrease in drying performance. 【Means for Solving the Problems】 【0007】 A dryer according to one aspect of the present disclosure comprises a housing, a storage tank for storing objects, a blower for blowing air into the storage tank, a collection device for collecting foreign matter from the air that has passed through the storage tank, an air passage connecting the blower, the storage tank, and the collection device, wherein the collection device comprises an inlet extending from an air intake port communicating with the storage tank, a first swirling section having a first opening communicating with the inlet and swirling the incoming air while sending it in a first direction, a second swirling section having a second opening communicating with the inlet and swirling the incoming air while sending it in a second direction, a first mesh section provided downstream of the first swirling section and having a cylindrical shape extending in the first direction and having a mesh in at least a part that allows air to flow out from the inside to the outside of the cylindrical shape, and a second mesh section provided downstream of the second swirling section and having a cylindrical shape extending in the second direction and having a mesh in at least a part that allows air to flow out from the inside to the outside of the cylindrical shape. [Effects of the Invention] 【0008】 According to this disclosure, it is possible to provide a dryer that suppresses the deterioration of drying performance. [Brief explanation of the drawing] 【0009】 [Figure 1] Schematic diagram of a dryer according to the embodiment of this disclosure [Figure 2] Perspective view of the collection device [Figure 3] Cross-sectional view along line AA in Figure 2 [Figure 4] Cross-sectional view along line BB in Figure 2 [Figure 5] Cross-sectional view along the CC line in Figure 2 [Figure 6] Cross-sectional view of a portion of the collection device showing the rotating section. [Figure 7] Cross-sectional view of a part of a collection device showing a mesh component. [Modes for carrying out the invention] 【0010】 (Embodiment 1) A dryer according to Embodiment 1 of this disclosure will now be described. Figure 1 is a schematic diagram of the dryer 1 according to Embodiment 1 of this disclosure. 【0011】 The dryer 1 in Embodiment 1 is a washer-dryer with a washing function (a so-called drum-type washer-dryer). The dryer 1 may be called a clothes dryer, but it may also process items other than clothing, such as towels and sheets. 【0012】 As shown in Figure 1, the dryer 1 comprises a housing 2, an outer tank 3, a rotating drum 4, a drive unit 5, a heat pump device 6, a collection device 7, an air passage 8, a blower 9, a water supply valve 10, a drain valve 11, and a control unit 12. 【0013】 In the following, two mutually orthogonal directions within the horizontal plane are defined as the width direction X and the front-to-back direction Y, while the vertical direction perpendicular to the horizontal plane is defined as the up-and-down direction Z. 【0014】 The housing 2 is a component that forms the exterior of the dryer 1. The front of the housing 2 is provided with an opening 20 and a door 21 that can be opened and closed to cover the opening 20. 【0015】 The outer tub 3 is a roughly cylindrical member located inside the housing 2 and has the function of holding washing water. The outer tub 3 may also be called a water tank or tub. The outer tub 3 is installed in the opening 31 facing the opening 20 of the housing 2, and the edge of the opening 31 is connected to the opening 20 by a bellows 32. The axis passing through the center of the bottom of the outer tub 3 is defined as the central axis V0. The outer tub 3 is positioned at an angle to the horizontal such that the central axis V0 is at an angle to the horizontal. The central axis V0 may also be set horizontally. 【0016】 The outer tank 3 is further provided with openings 33 and 34. Openings 33 and 34 communicate with the heat pump device 6, the collection device 7, and the air passage 8. Air inside the outer tank 3 flows out through opening 33, passes through the collection device 7, the heat pump device 6, and the air passage 8 in that order, and then flows back into the outer tank 3 through opening 34 (see arrow A). 【0017】 The rotary drum 4 is provided rotatably around the central axis V0 inside the outer tub 3 and is a substantially cylindrical member capable of accommodating laundry. The rotary drum 4 may also be referred to as a washing tub, an inner tub, or a storage tub. A number of through-holes 40 are formed in the rotary drum 4, and the through-holes 40 communicate the rotary drum 4 with the outer tub 3. The rotary drum 4 is provided with an opening 41 at a position facing the opening 20 of the housing 2 and the opening 31 of the outer tub 3. When the user opens the door 21, the user can put laundry into the rotary drum 4 through the openings 20, 31, and 41. 【0018】 The drive unit 5 is a member that rotationally drives the rotary drum 4 around the central axis V0. The drive unit 5 has, for example, a motor that rotates the rotary drum 4. 【0019】 The heat pump device 6 is provided at the upper part of the housing 2, communicates with the rotary drum 4, and is a device for dehumidifying and heating the air flowing in from the rotary drum 4. 【0020】 The heat pump device 6 includes a first heat exchanger, a second heat exchanger, a refrigerant pipe that circulates refrigerant between the two heat exchangers, a compressor, and a throttling mechanism. The first heat exchanger is a heat exchanger for dehumidifying air (dehumidifying heat exchanger). The second heat exchanger is a heat exchanger for heating the dehumidified air (heating heat exchanger) downstream of the first heat exchanger. The compressor compresses the refrigerant flowing from the first heat exchanger toward the second heat exchanger, and the throttling mechanism decompresses the refrigerant flowing from the second heat exchanger toward the first heat exchanger. 【0021】 The collection device 7 is a device that collects foreign matters such as lint and dust from the air flowing from the rotary drum 4 toward the heat pump device 6 upstream of the heat pump device 6. The collection device 7 removes foreign matters from the air and suppresses the adhesion of foreign matters to members such as the heat pump device 6 and the blower device 9 provided downstream thereof. 【0022】 The air passage 8 is located inside the housing 2 and is a flow path member that connects the rotating drum 4, the heat pump device 6, the collection device 7, and the blower device 9. When the blower device 9 is driven, air circulates between the rotating drum 4 and the heat pump device 6 via the air passage 8 (see arrow A). 【0023】 In Embodiment 1, the air passage 8 is provided between the heat pump device 6 and the rotating drum 4, but is not limited to this, and may be provided between other components, such as between the rotating drum 4 and the collection device 7, or between the collection device 7 and the heat pump device 6. 【0024】 The blower 9 is installed in the air passage 8 and is a device that blows air to circulate it between the rotating drum 4 and the heat pump device 6. The blower 9 blows the air that has been dehumidified and heated by the heat pump device 6 toward the rotating drum 4. The blower 9 has, for example, a blower fan. 【0025】 The water supply valve 10 has an openable and closable valve that is connected to a faucet via an external hose. When the water supply valve 10 is opened, water is supplied to the outer tank 3. The water supply valve 10 is located on the upper part of the housing 2. 【0026】 The drain valve 11 is a valve that can be opened and closed. When closed, it stores water in the outer tank 3, and when open, it drains the water stored in the outer tank 3. The drain valve 11 is located at the bottom of the housing 2. 【0027】 The control unit 12 is a component that controls the operation of the dryer 1. The control unit 12 controls the components of the dryer 1, such as the drive unit 5, heat pump device 6, blower device 9, water supply valve 10, and drain valve 11. The control unit 12 includes a general-purpose processor such as a CPU, MPU, FPGA, DSP, or ASIC that realizes predetermined functions by executing a program. The control unit 12 can realize various controls in the dryer 1 by calling and executing a control program stored in memory (not shown). The control unit 12 is not limited to realizing predetermined functions through the cooperation of hardware and software, but may also be a hardware circuit specifically designed to realize predetermined functions. 【0028】 Next, the structure of the collection device 7 will be described in more detail. Figure 2 is a perspective view of the collection device 7. Figure 3 is a cross-sectional view of the collection device 7 along line AA in Figure 2. Figure 4 is a cross-sectional view of the collection device 7 along line BB in Figure 2. Figure 5 is a cross-sectional view of the collection device 7 along line CC in Figure 2. 【0029】 As shown in Figures 2 and 3, the collection device 7 includes a case 70, an inlet 71, a swirling section 72 (Figure 3), mesh members 73A and 73B (Figures 3 and 5), a filter 74 (Figure 3), an aggregation section 75 (Figure 3), and a storage section 76. 【0030】 As shown in Figure 3, the case 70 is a case that houses a part of the inlet section 71, a swirling section 72, mesh members 73A (shown in Figure 5), 73B, a filter 74, and a condensation section 75. Although not shown in Figure 3, the case 70 further houses a heat pump device 6 (Figure 1). The upstream portion of the inlet section 71 is connected to one side of the case 70, and the air passage 8 (Figure 1) is connected to the other side. 【0031】 In Embodiment 1, the portion of the case 70 that houses the rotating section 72, the mesh members 73A and 73B, and the agglomerating section 75 protrudes from the housing 2 (Figure 1), but the entire case 70 may be housed inside the housing 2. 【0032】 The inlet section 71 is a flow path member extending from an air intake port 81 that communicates with the rotating drum 4 (Figure 1), and allows moist air from the rotating drum 4 to flow into the swirling section 72. In other words, the inlet section 71 communicates with the rotating drum 4 and the swirling section 72. 【0033】 In Embodiment 1, the inlet section 71 extends linearly upward from the intake port 81 and is connected to the swirling section 72. In Embodiment 1, the downstream portion of the inlet section 71 is integrally formed with the swirling section 72. The intake port 81 is connected to the outer tank 3 via a flow path member having a bellows shape, but it may also be directly connected to the opening 33 (Figure 1) of the outer tank 3. 【0034】 The swirling section 72 is a flow channel member that generates a swirling flow by sending the air flowing in from the inlet section 71 in predetermined axial directions V1 and V2, while swirling it around axes L1 and L2 along the axial directions V1 and V2. 【0035】 As shown in Figure 4, in Embodiment 1, the swirling section 72 has a first swirling section 72A and a second swirling section 72B, each generating a swirling flow independently and without interfering with each other. The swirling sections 72A and 72B are arranged side by side in the width direction X so as to be adjacent to each other. 【0036】 The inlet 71 is positioned between the axes L1 and L2 of the swivel sections 72A and 72B in the width direction X, so as to supply air to both the swivel sections 72A and 72B. Therefore, air flows from the inlet 71 outward in the width direction X into the respective swivel sections 72A and 72B. 【0037】 The swivel sections 72A and 72B each have openings 84A and 84B that communicate with the inlet section 71 in order to introduce air. The openings 84A and 84B each open directly to the inlet section 71. Specifically, the openings 84A and 84B are each connected to the upper end of the inlet section 71. Opening 84A is connected to one side of the upper end of the inlet section 71 in the width direction X, and opening 84B is connected to the other side of the upper end in the width direction X. The openings 84A and 84B face each other in the width direction X. 【0038】 The swirl sections 72A and 72B each have peripheral wall sections 83A and 83B that extend in a substantially arc shape from the edges of the openings 84A and 84B, respectively. The swirl sections 72A and 72B each generate a swirling flow by guiding air along the inner circumferential surfaces of the peripheral wall sections 83A and 83B. Specifically, the peripheral wall sections 83A and 83B each extend in a substantially arc shape around axes L1 and L2 along the axial directions V1 and V2. In Embodiment 1, the axial directions V1 and V2 and axes L1 and L2 are perpendicular to the width direction X and parallel to each other. 【0039】 Furthermore, axes L1 and L2 are not limited to being parallel to each other; they may simply extend along each other. For example, axes L1 and L2 may extend at an angle to each other, so as to increase the distance between them in the width direction X. Axes L1 and L2 may also have a twist relative to each other. 【0040】 Here, the first swirling section 72A swirls the incoming air while sending it in the first axial direction V1, and the second swirling section 72B swirls the incoming air while sending it in the second axial direction V2. The swirling direction C1 of the swirling flow in the first swirling section 72A is different from the swirling direction C2 of the swirling flow in the second swirling section 72B. 【0041】 Returning to Figure 3, the axes L1 and L2 of the swivel sections 72A and 72B are inclined with respect to the longitudinal direction Y. With this configuration, even in configurations where space in the longitudinal direction Y is limited, the axial dimensions V1 and V2 of the swivel sections 72A and 72B can be secured, so that a swirling flow can be generated while suppressing pressure loss. 【0042】 The air flowing from the inlet 71 into the swirling sections 72A and 72B forms a swirling flow and flows into the mesh members 73A and 73B located downstream of the swirling sections 72A and 72B while swirling. 【0043】 As shown in Figures 3 and 5, the mesh members 73A and 73B have a cylindrical shape extending in the axial directions V1 and V2, respectively, and are members having mesh 85A and 85B around their entire circumference. The meshes 85A and 85B have multiple through holes that penetrate radially. The through holes allow only air to flow out from the inside to the outside of the cylindrical shape, suppressing the passage of foreign matter. 【0044】 Because the mesh members 73A and 73B have a cylindrical shape, the airflow of the swirling flow entering from the swirling sections 72A and 72B is parallel to the meshes 85A and 85B of the mesh members 73A and 73B. In other words, it is possible to suppress the flow of air in a direction perpendicular to the meshes 85A and 85B, and to suppress foreign matter from being pressed against the meshes 85A and 85B. Therefore, foreign matter is less likely to adhere to the meshes 85A and 85B. 【0045】 As shown in Figure 5, the first mesh member 73A is positioned coaxially L1 with the first rotating section 72A, and the second mesh member 73B is positioned coaxially L2 with the second rotating section 72B. That is, axes L1 and L2 are the central axes of the mesh members 73A and 73B, respectively. Therefore, since the rotating sections 72A and 72B are positioned side by side in the width direction X, the circumferential surfaces of the mesh members 73A and 73B are also positioned adjacent to each other in the width direction X. 【0046】 On the other hand, the circumferential surfaces of the mesh members 73A and 73B are arranged with a gap S1 in the width direction X. That is, the circumferential surfaces of the mesh members 73A and 73B are spaced apart from each other. Therefore, some of the air flowing out from the mesh members 73A and 73B flows through the space K3 between the circumferential surfaces of the mesh members 73A and 73B. 【0047】 The mesh members 73A and 73B may have support portions 86 in a portion of their entire circumference that support the meshes 85A and 85B. 【0048】 Returning to Figure 3, the air flowing radially outward from the mesh members 73A and 73B flows into the internal space K1 defined by the case 70. The internal space K1 is the space outside the mesh members 73A and 73B and upstream of the filter 74. 【0049】 The filter 74 is a filter that penetrates in the front-to-back direction Y. By passing the air flowing out from the mesh members 73A and 73B through the filter 74, foreign matter such as lint in the air can be further removed before it flows into the heat pump device 6. 【0050】 A heat pump device 6 (Figure 1) is located in the internal space K2 downstream of the filter 74. 【0051】 Case 70 has an exhaust port 82 downstream of the heat pump device 6. The exhaust port 82 is connected to the air passage 8 (Figure 1). That is, air flowing into the internal space K1 passes through the filter 74, is dehumidified and heated by the heat pump device 6, flows into the air passage 8 from the exhaust port 82, and is returned to the rotating drum 4. 【0052】 Air that does not pass through the mesh members 73A and 73B flows into the condensation section 75. 【0053】 The agglomeration section 75 communicates with the radially inner surfaces of the mesh members 73A and 73B and is a flow channel member for agglomerating foreign matter remaining inside the mesh members 73A and 73B. The agglomeration section 75 is provided downstream of each of the radially inner surfaces of the mesh members 73A and 73B and has two substantially cylindrical shapes extending in the axial directions V1 and V2. The agglomeration section 75 guides and maintains the swirling flow flowing in from the mesh members 73A and 73B on its inner surface, thereby agglomerating foreign matter contained in the swirling flow. The agglomerated foreign matter forms clumps. 【0054】 An opening 77 communicating with the storage section 76 is provided on a part of the circumferential surface of the agglomeration section 75. In Embodiment 1, the opening 77 is provided on the upper part of the agglomeration section 75. As the mass of foreign matter grows larger, centrifugal force due to rotation acts more easily on the mass, allowing the mass to enter the storage section 76 from the agglomeration section 75. 【0055】 The storage section 76 is a container in which clumps of foreign matter formed in the aggregation section 75 are stored. The storage section 76 is removable from the collection device 7. The user can remove the storage section 76 and discard the foreign matter accumulated inside. 【0056】 Next, the structure of the inlet section 71 and the swivel section 72 will be described in more detail. Figure 6 is a cross-sectional view of a part of the collection device 7, as seen from the front-rear direction Y, showing the inlet section 71 and the swivel section 72. 【0057】 As shown in Figure 6, the first circumferential wall portion 83A of the first rotating portion 72A and the second circumferential wall portion 83B of the second rotating portion 72B are connected to each other at one end portion 87. 【0058】 Since each of the peripheral wall portions 83A and 83B extends outward in the width direction X from the end portion 87, the peripheral wall portions 83A and 83B guide the air outward, that is, in opposite directions. Therefore, the direction of rotation C1 of the swirling flow in the first swirling portion 72A and the direction of rotation C2 of the swirling flow in the second swirling portion 72B are opposite. In Embodiment 1, the swirling flow in the first swirling portion 72A rotates clockwise, and the swirling flow in the second swirling portion 72B rotates counterclockwise. 【0059】 The first portion 88A of the first peripheral wall portion 83A extending from the end portion 87 and the second portion 88B of the second peripheral wall portion 83B extending from the end portion 87 form a protrusion 78. The protrusion 78 faces the intake port 81 (Figure 4) of the inlet portion 71 in the vertical direction Z and protrudes downward toward the intake port 81. The end portion 87 forms the tip of the protrusion 78. 【0060】 The first portion 88A of the first circumferential wall portion 83A and the second portion 88B of the second circumferential wall portion 83B, which form the protrusion 78, each have a greater curvature than the other parts of the circumferential wall portions 83A and 83B, and are provided in a curved shape that bulges radially outward. The first portion 88A and the second portion 88B each move away from the end 87 and the bulge decreases. Therefore, the circumferential wall portions 83A and 83B are provided in a smooth curved shape. The first portion 88A and the second portion 88B may extend along an involute curve that bulges radially outward. 【0061】 On the other hand, the first circumferential wall portion 83A of the first rotating portion 72A and the second circumferential wall portion 83B of the second rotating portion 72B are connected to the inlet portion 71 near the other end portions 89A and 89B. Thus, the opening 84A is defined between the ends 87 and 89A of the first circumferential wall portion 83A, and the opening 84B is defined between the ends 87 and 89B of the second circumferential wall portion 83B. 【0062】 Ends 89A and 89B are located below end 87. Therefore, openings 84A and 84B face each other in the width direction X below the protrusion 78. Furthermore, ends 89A and 89B are located further outward in the width direction X than end 87. In other words, end 87 and the protrusion 78 are located between ends 89A and 89B (i.e., between openings 84A and 84B). This configuration makes it easy to divert the air in the inlet 71 in opposite directions with respect to the width direction X by the protrusion 78 and direct it into the respective openings 84A and 84B. 【0063】 In Embodiment 1, the end portions 89A and 89B protrude inward in the width direction X from the wall surface of the inlet portion 71 to which the peripheral wall portions 83A and 83B are connected. In other words, the end portions 89A and 89B protrude downstream in the direction of travel of the swirling flow through the swirling portions 72A and 72B from the wall surface of the inlet portion 71 to which the peripheral wall portions 83A and 83B are connected. 【0064】 With this configuration, the air flowing through the inlet 71 strikes the outer circumferential surfaces of the ends 89A and 89B, is guided to the outer circumferential surfaces extending from the ends 89A and 89B, and flows into the swirling sections 72A and 72B at a radially outward position with the wind direction corrected to be close to the tangential direction of the first and second circumferential wall sections 83A and 83B. By flowing into the swirling sections 72A and 72B with the wind direction being close to the tangential direction, the air can merge with the swirling flow flowing inside the swirling sections 72A and 72B while suppressing disturbance to the swirling flow. Furthermore, because the ends 89A and 89B are provided, the air flowing through the inlet 71 can be guided radially outward from the swirling flow flowing through the swirling sections 72A and 72B, allowing the size of the openings 84A and 84B to be increased and a large drainage area to be secured. 【0065】 Furthermore, since the air flowing through the swirling sections 72A and 72B is guided to the inner circumferential surface of the end portions 89A and 89B, it becomes easier to maintain a swirling flow in the swirling sections 72A and 72B. 【0066】 In Embodiment 1, the opening area of opening 84A along the rotation direction C1 is larger than the opening area of opening 84B along the rotation direction C2. However, the opening areas of openings 84A and 84B may be the same. 【0067】 Here, the positional relationship between the swivel section 72 and the inlet section 71 will be explained. The central axis L3 of the inlet section 71, which passes through the center of the intake port 81 (Figure 4), is offset in the width direction X relative to the end portion 87 of the swivel section 72. In Embodiment 1, the inlet section 71 is positioned biased toward the swivel section 72A side. 【0068】 On the rotating section 72A side, more space can be secured between it and the outer surface of the outer tank 3 (Figure 1) compared to the rotating section 72B side. As a result, it becomes easier to provide a bellows member to absorb vibrations between the outer tank 3 and the inlet section 71, suppressing the transmission of vibrations caused by the rotation of the rotating drum 4 to the collection device 7 and the heat pump device 6, thereby suppressing failures of the collection device 7 and the heat pump device 6. 【0069】 To guide the air from a biased position toward the respective swirling sections 72A and 72B, the inlet section 71 has inclined surfaces 91 and 92 near the openings 84A and 84B. The inclined surface 91 extends from the portion of the first circumferential wall 83A adjacent to the end 89A and is inclined with respect to the vertical direction Z so as to deflect the air tangentially toward the swirling sections 72A and 72B. The inclined surface 92 extends from the portion of the second circumferential wall 83B adjacent to the end 89B and is inclined with respect to the vertical direction Z so as to deflect the air toward the opening 84B. In other words, the inclined surface 91 prevents excessive supply of air to the opening 84A, and the inclined surface 92 guides the air toward the opening 84B. 【0070】 With this configuration, since opening 84B is smaller than opening 84A, air can be more reliably supplied to the swirling section 72B. Therefore, air can be supplied uniformly to openings 84A and 84B, which have different opening areas. In addition, since turbulence in the swirling flow through the swirling sections 72A and 72B can be suppressed, the center of the swirling flow can be made near the center of the swirling sections 72A and 72B, and the swirling flow can be generated efficiently. 【0071】 Next, the structure of the mesh members 73A and 73B will be described in more detail. Figure 7 is a cross-sectional view of a part of the collection device 7, showing the mesh members 73A and 73B, as viewed from the front-to-back direction Y. 【0072】 In Embodiment 1, the first mesh member 73A and the second mesh member 73B have a common structure. However, the first mesh member 73A and the second mesh member 73B may have different diameters and lengths, and may also have different structures. 【0073】 As shown in Figure 7, there are no partitions such as walls or ribs in the gap S1 between the first mesh member 73A and the second mesh member 73B. In other words, a communication space K3 is provided between the first mesh member 73A and the second mesh member 73B. The space K3 extends in the vertical direction Z and communicates with the internal space K1 of the case 70. 【0074】 Let's explain the airflow in the gap S1. Since the swirling directions C1 and C2 in the respective mesh members 73A and 73B are opposite, the tangential directions of the swirling flows on the opposing circumferential surfaces across the gap S1 are aligned with each other. That is, the air flowing out from the first mesh member 73A into the gap S1 and the air flowing out from the second mesh member 73B into the gap S1 flow in the same direction (upward). Therefore, even without a partition, interference of air in the gap S1 can be suppressed. 【0075】 The spacing between the central axes (i.e., axes L1 and L2) of the mesh members 73A and 73B is greater than the average diameter of the mesh members 73A and 73B, and less than twice the average diameter. The spacing between the central axes of the mesh members 73A and 73B may also be less than 1.5 times the average diameter. 【0076】 Because the rotation directions C1 and C2 of the mesh members 73A and 73B are opposite, the distance between the central axes of the mesh members 73A and 73B can be reduced while maintaining a state in which air interference is less likely to occur at the interval S1, thereby reducing the interval S1. Therefore, it becomes easier to achieve space savings for the collection device 7. 【0077】 The mesh members 73A and 73B are surrounded by the case 70. The mesh members 73A and 73B have a gap S2 between them and the inner wall surface of the case 70. Specifically, the circumferential surfaces of the mesh members 73A and 73B are separated from the inner wall surface of the case 70 around their entire circumference. As a result, air flows out more uniformly around the entire circumference of the mesh members 73A and 73B. By avoiding localized increases in the amount of air flow in the circumferential direction, the adhesion of foreign matter such as lint due to uneven airflow in the mesh members 73A and 73B can be suppressed. 【0078】 The size of the gap S2 between the circumferential surfaces of the mesh members 73A and 73B and the inner wall surface of the case 70 varies along axes L1 and L2. The spacing S1 between the mesh members 73A and 73B is less than twice the minimum value of the spacing S2. 【0079】 Next, the flow of air and foreign matter in the collection device 7 will be explained with reference to Figures 3, 6, and 7. 【0080】 As shown in Figure 3, when the blower 9 (Figure 1) is driven, air flows from the rotating drum 4 through the intake port 81 into the inlet 71. As shown in Figure 6, the air flows upward within the inlet 71 to the openings 84A and 84B, and flows through the openings 84A and 84B into the respective swirling sections 72A and 72B. The air that flows into the swirling sections 72A and 72B flows along the peripheral walls 83A and 83B in the swirling directions C1 and C2, forming a swirling flow. The swirling flow moves toward the mesh members 73A and 73B along the axial directions V1 and V2 while swirling. 【0081】 As shown in Figures 3 and 7, a portion of the swirling flow that reaches the mesh members 73A and 73B passes through meshes 85A and 85B and flows into the internal space K1 of the case 70. The air that flows into the internal space K1 passes through the filter 74 and the heat pump device 6 in sequence and flows out from the collection device 7 through the exhaust port 82. 【0082】 As shown in Figure 3, a portion of the swirling flow proceeds toward the agglomeration section 75 along the axial directions V1 and V2. As the swirling flow continues to swirl in the agglomeration section 75, foreign matter such as lint contained in the swirling flow becomes entangled with each other and forms clumps. When the clumps of foreign matter become large, they flow into the storage section 76 through the opening 77 of the agglomeration section 75. Air may also flow so as to hit the end face of the agglomeration section 75 and return to the mesh members 73A and 73B. 【0083】 To summarize the above explanation, the features of this disclosure are described below. 【0084】 The dryer 1 according to Embodiment 1 is equipped with a collection device 7 having two swirling sections 72A and 72B and two cylindrical mesh members 73A and 73B. By providing multiple swirling sections, the total area of the openings into which water flows can be increased. Furthermore, by providing multiple mesh members, the area of the meshes 85A and 85B can be increased compared to the case where a single mesh member is provided. By increasing the total area of the mesh section, pressure loss can be reduced. Therefore, a decrease in the drying performance of the dryer 1 is suppressed. 【0085】 Two independent swirling sections 72A and 72B are provided, each generating its own swirling flow so that a swirling flow flows into each of the mesh members 73A and 73B. In this configuration, the collection device 7 divides the air flowing through the inlet 71 so that air can be supplied from a single intake port 81 to each of the swirling sections 72A and 72B. 【0086】 Specifically, the collection device 7 is located between the openings 84A and 84B and has a protrusion 78 facing the intake port 81. Air flowing upward from the intake port 81 hits the protrusion 78 and flows into the first swirling section 72A or the second swirling section 72B along the inner circumferential surface of the portions 88A and 88B that form the protrusion 78. 【0087】 Furthermore, the rotation direction C1 in the swivel section 72A and the mesh member 73A is different from the rotation direction C2 in the swivel section 72B and the mesh member 73B. Therefore, even when space in the width direction X is limited and it is difficult to make the gap S1 between the mesh members 73A and 73B large, the air flowing out from the mesh members 73A and 73B is less likely to interfere with each other at the gap S1. Moreover, compared to the case where the rotation direction is the same and a partition structure is provided to suppress air interference at the gap S1, the structure of the collection device 7 can be simplified. 【0088】 [Effect 1] The dryer 1 according to Embodiment 1 can achieve the following effects. 【0089】 As described above, the dryer 1 according to Embodiment 1 comprises a housing 2, a rotating drum 4 (container tank) for containing the object to be dried, a blower 9 for blowing air into the rotating drum 4, a collection device 7 for collecting foreign matter from the air that has passed through the rotating drum 4, and an air passage 8. The air passage 8 connects the blower 9, the rotating drum 4, and the collection device 7. The collection device 7 has an inlet 71 extending from an air intake 81 communicating with the rotating drum 4, a first swirling section 72A, a second swirling section 72B, a first mesh member 73A (first mesh section), and a second mesh member 73B (second mesh section). The first swirling section 72A has a first opening 84A communicating with the inlet 71 and swirls while sending the incoming air in the axial direction V1 (first direction). The second swirling section 72B has a second opening 84B that communicates with the inlet section 71, and swirls while sending the incoming air in the axial direction V2 (second direction). The first mesh member 73A is provided downstream of the first swirling section 72A and has a cylindrical shape extending in the axial direction V1, and has a mesh 85A that allows air to flow out from the inside to the outside of the cylindrical shape in at least a part of it. The second mesh member 73B is provided downstream of the second swirling section 72B and has a cylindrical shape extending in the axial direction V2, and has a mesh 85B that allows air to flow out from the inside to the outside of the cylindrical shape in at least a part of it. 【0090】 With this configuration, since there are openings 84A and 84B that communicate with the inlet 71, the air in the inlet 71 can be divided and directed toward the respective swirling sections 72A and 72B. As a result, a swirling flow is generated in each of the swirling sections 72A and 72B, and this swirling flow can be supplied to the respective mesh members 73A and 73B. This suppresses the adhesion and accumulation of lint on the meshes 85A and 85B of the mesh members 73A and 73B, and prevents a decrease in the amount of air that can pass through the mesh members 73A and 73B. By providing multiple mesh members 73A and 73B and supplying a swirling flow to each of them, the total area of the mesh members 73A and 73B can be increased and pressure loss reduced, even in a limited space where it is difficult to provide one large mesh section. Therefore, a decrease in the drying performance of the dryer 1 can be suppressed. 【0091】 Furthermore, in the dryer 1 according to Embodiment 1, the collection device 7 has a convex portion 78 (wall portion) that faces the air intake port 81 of the inlet portion 71 and deflects the air in the inlet portion 71 to the first opening 84A and the second opening 84B, respectively. 【0092】 This configuration makes it easy to divide the airflow that flows in from the intake port 81. 【0093】 Furthermore, in the dryer 1 according to Embodiment 1, the first opening 84A and the second opening 84B face each other. The protrusion 78 is located between the first opening 84A and the second opening 84B. 【0094】 This configuration makes it easy to divide the airflow that flows in from the intake port 81. 【0095】 Furthermore, in the dryer 1 according to Embodiment 1, the first swivel section 72A has a first circumferential wall section 83A that extends around an axis L1 (first axis) along the axial direction V1. The second swivel section 72B has a second circumferential wall section 83B that extends around an axis L2 (second axis) along the axial direction V2. The first swivel section 72A and the second swivel section 72B are arranged so that their axes L1 and L2 extend along each other and are aligned in the width direction X (third direction). 【0096】 This configuration allows for a compact arrangement even when multiple swivel sections 72A, 72B and mesh members 73A, 73B are provided. 【0097】 Furthermore, in the dryer 1 according to Embodiment 1, the first peripheral wall portion 83A and the second peripheral wall portion 83B are connected to each other at one end 87, and are connected to the inlet portion 71 near the other end 89A, 89B. 【0098】 This configuration allows the swivel sections 72A and 72B to be placed adjacent to each other, resulting in an even more compact arrangement. 【0099】 Furthermore, in the dryer 1 according to Embodiment 1, the other end 89A of the first peripheral wall portion 83A protrudes beyond the wall surface of the inlet portion 71 to which the first peripheral wall portion 83A is connected. The other end 89B of the second peripheral wall portion 83B protrudes beyond the wall surface of the inlet portion 71 to which the second peripheral wall portion 83B is connected. 【0100】 With this configuration, the ends 89A and 89B can guide the air flowing into the swivel sections 72A and 72B. 【0101】 Furthermore, in the dryer 1 according to Embodiment 1, the portions 88A and 88B of the first peripheral wall portion 83A and the second peripheral wall portion 83B, respectively, extending from one end portion 87, form protrusions 78 that project toward the air intake port 81. 【0102】 With this configuration, the structure of the rotating parts 72A and 72B is simplified by forming the protrusion 78 with a portion of the peripheral wall parts 83A and 83B. 【0103】 Furthermore, in the dryer 1 according to Embodiment 1, the portions 88A and 88B of the first peripheral wall portion 83A and the second peripheral wall portion 83B, which extend from one end portion 87, are provided in a curved shape that bulges radially outward. 【0104】 This configuration makes it easier for air to flow into the radially outer regions of the swirling sections 72A and 72B, thus facilitating the swirling of the air. 【0105】 Furthermore, in the dryer 1 according to Embodiment 1, when viewed from the axial direction V1, the inlet 71 is located between the axis L1 and the axis L2 and extends along the vertical direction Z (fourth direction) which intersects the width direction X. 【0106】 This configuration allows the inlet 71 to be positioned so that it extends tangentially to both swirling sections 72A and 72B. As a result, swirling flow is more easily generated within the swirling sections 72A and 72B. 【0107】 Furthermore, in the dryer 1 according to Embodiment 1, the first opening 84A and the second opening 84B are each connected to the inlet 71. 【0108】 This configuration allows for a common airflow path from the intake port 81 of the inlet section 71 to the openings 84A and 84B of the swirling sections 72A and 72B, thereby simplifying the structure of the collection device 7. 【0109】 [Effect 2] The dryer 1 according to Embodiment 1 can achieve the following effects. 【0110】 As described above, the dryer 1 according to Embodiment 1 comprises a housing 2, a rotating drum 4 (container tank) for containing the object to be dried, a blower 9 for blowing air into the rotating drum 4, a collection device 7 for collecting foreign matter from the air that has passed through the rotating drum 4, and an air passage 8. The air passage 8 connects the blower 9, the rotating drum 4, and the collection device 7. The collection device 7 has an inlet 71 extending from an air intake 81 communicating with the rotating drum 4, a swirling section 72, a first mesh member 73A (first mesh section), and a second mesh member 73B (second mesh section). The swirling section 72 has openings 84A and 84B communicating with the inlet 71 and generates a swirling flow from the incoming air. The first mesh member 73A and the second mesh member 73B are provided downstream of the swirling section 72 and each has a cylindrical shape. The first mesh member 73A and the second mesh member 73B are arranged so that their circumferential surfaces are adjacent to each other, and each has mesh 85A and 85B on at least the adjacent circumferential surface portions. The swirling direction C1 of the swirling flow in the first mesh member 73A is different from the swirling direction C2 of the swirling flow in the second mesh member 73B. 【0111】 This configuration suppresses interference between the air flowing out from the first mesh member 73A and the air flowing out from the second mesh member 73B. Therefore, pressure loss in the collection device 7 can be reduced. Consequently, a decrease in the drying performance of the dryer 1 can be suppressed. 【0112】 Furthermore, in the dryer 1 according to Embodiment 1, the circumferential surface of the first mesh member 73A has a gap S1 between it and the circumferential surface of the second mesh member 73B. 【0113】 This configuration makes it possible to suppress interference between the air flowing out of the first mesh member 73A into the gap S1 and the air flowing out of the second mesh member 73B into the gap S1. 【0114】 Furthermore, in the dryer 1 according to Embodiment 1, the first mesh member 73A has a cylindrical shape extending along axis L1, and the second mesh member 73B has a cylindrical shape extending along axis L2. Axis L1 and axis L2 extend along each other. 【0115】 This configuration allows for a compact arrangement even when multiple mesh members 73A and 73B are provided. 【0116】 Furthermore, in the dryer 1 according to Embodiment 1, the inlet 71 is positioned between shaft L1 and shaft L2 when viewed from shaft L1. 【0117】 This configuration makes it easier for air in the inlet 71 to flow in the opposite direction toward the swirling sections 72A and 72B on both sides. As a result, a reverse swirling flow is formed in the swirling sections 72A and 72B, and this reverse swirling flow flows into the mesh members 73A and 73B. 【0118】 Furthermore, in the dryer 1 according to Embodiment 1, the swirling section 72 has a first opening 84A through which air forming the swirling flow of the first mesh member 73A flows, and a second opening 84B through which air forming the swirling flow of the second mesh member 73B flows. In the width direction X where the circumferential surfaces of the first mesh member 73A and the circumferential surfaces of the second mesh member 73B are adjacent, the first opening 84A and the second opening 84B face each other. 【0119】 With this configuration, since the openings 84A and 84B face each other, air can be introduced into the swirling section 72 in one direction through opening 84A and in the opposite direction through opening 84B. Therefore, a swirling flow with different swirling directions can be generated in the swirling section 72. 【0120】 Furthermore, in the dryer 1 according to Embodiment 1, the distance between the axis L1 of the first mesh member 73A and the axis L2 of the second mesh member 73B is greater than the average value of the diameter of the first mesh member 73A and the diameter of the second mesh member 73B, and less than twice the average value. 【0121】 With this configuration, even when the spacing S1 between the mesh members 73A and 73B is narrower than twice the average diameter, interference between the air flowing out of each mesh member 73A and 73B can be suppressed. In other words, space saving of the collection device 7 can be achieved while suppressing air interference. 【0122】 Furthermore, in the dryer 1 according to Embodiment 1, a communication space K3 is provided between the first mesh member 73A and the second mesh member 73B. 【0123】 With this configuration, even if a simple structure is adopted in which no partition wall is provided at the interval S1 between the mesh members 73A and 73B, interference between the air flowing out from each mesh member 73A and 73B can be suppressed. 【0124】 Furthermore, in the dryer 1 according to Embodiment 1, the collection device 7 further includes a case 70 that houses the first mesh member 73A and the second mesh member 73B. The first mesh member 73A and the second mesh member 73B have a gap S2 between them and the inner wall surface of the case 70. 【0125】 With this configuration, even when the direction of airflow from the mesh members 73A and 73B is restricted by the case 70, interference between the air flowing from each mesh member 73A and 73B can be suppressed. 【0126】 Furthermore, in the dryer 1 according to Embodiment 1, the distance S1 between the first mesh member 73A and the second mesh member 73B is less than twice the minimum value of the distance S2 between the case 70 and the circumferential surfaces of the first mesh member 73A and the second mesh member 73B. 【0127】 With this configuration, even when the spacing S1 between the mesh members 73A and 73B is narrow, interference between the air flowing out from each mesh member 73A and 73B can be suppressed. In other words, space saving of the collection device 7 can be achieved while suppressing air interference. 【0128】 This disclosure is not limited to the embodiments described above, and can be implemented in various other forms. 【0129】 In Embodiment 1, an example was described in which the dryer 1 is a drum-type washer-dryer equipped with a washing function, but it is not limited to this. Any dryer may be used, such as a simple dryer without a washing function, one that has a heat pump device that dehumidifies and heats the air, or any other dryer that has a drying function. 【0130】 In Embodiment 1, an example was described in which the collection device 7 has two swivel sections 72A and 72B and two mesh members 73A and 73B, but it is not limited to this. The collection device 7 may have any number of swivel sections and mesh members, two or more. 【0131】 In Embodiment 1, an example was described in which the swivel sections 72A and 72B are adjacent to each other at the end 87, but the invention is not limited to this. The swivel sections 72A and 72B may be arranged with a gap between them. In this case, the paths from the intake port 81 to the respective openings 84A and 84B may be independent. 【0132】 In Embodiment 1, an example was described in which the openings 84A and 84B face each other, but the invention is not limited to this. The openings 84A and 84B may be opened in any direction. 【0133】 In Embodiment 1, an example was described in which the mesh members 73A and 73B have mesh 85A and 85B around their entire circumference, but the invention is not limited to this. The mesh members 73A and 73B only need to have through holes formed in at least the portions where the mesh members 73A and 73B are adjacent to each other, that is, the portions facing the spacing S1. 【0134】 In Embodiment 1, an example was described in which the swivel portion 72 forms a protrusion 78, but the invention is not limited to this. The collection device 7 may omit the protrusion 78. The collection device 7 may also have another wall portion that faces the intake port 81 of the inlet portion 71 and deflects the air in the inlet portion 71 toward the respective openings 84A and 84B. The wall portion may have a shape along the width direction X. In this case, the wall portion may be located between the openings 84A and 84B. Such an arrangement makes it easier to deflect the air toward the respective openings 84A and 84B. 【0135】 In Embodiment 1, an example was described in which the dryer 1 has a heat pump device 6 to heat the air inside the rotating drum 4, but the dryer 1 is not limited to this. The dryer 1 may have a heater instead of the heat pump device 6, and the air may be heated by the heater. 【0136】 In Embodiment 1, an example was described in which the collection device 7, heat pump device 6, and blower device 9 are arranged in order from upstream to downstream in the direction of airflow, but the system is not limited to this. In the direction of airflow, the blower device 9 may be arranged upstream of the heat pump device 6. 【0137】 In Embodiment 1, an example was described in which air circulates through a flow path provided inside the housing 2, but the invention is not limited to this. The air may be discharged outside the housing 2 after passing through the rotating drum 4. For example, the dryer 1 may have a flow path that passes through the housing 2 and the rotating drum 4. The flow path may be provided in the order of a blower 9, a heat pump 6, a rotating drum 4, and a collection device 7. 【0138】 In Embodiment 1, an example was described in which the rotation directions of the rotation sections 72A and 72B are opposite, but the invention is not limited to this. The rotation directions of the rotation sections 72A and 72B may be the same. 【0139】 The dryer in the first embodiment comprises a housing, a storage tank for storing objects, a blower for blowing air into the storage tank, a collection device for collecting foreign matter from the air that has passed through the storage tank, an air passage connecting the blower, the storage tank, and the collection device, wherein the collection device comprises an inlet extending from an air intake port communicating with the storage tank, a first swirling section having a first opening communicating with the inlet and swirling the incoming air while sending it in a first direction, a second swirling section having a second opening communicating with the inlet and swirling the incoming air while sending it in a second direction, a first mesh section provided downstream of the first swirling section and having a cylindrical shape extending in the first direction and having a mesh in at least a part that allows air to flow out from the inside to the outside of the cylindrical shape, and a second mesh section provided downstream of the second swirling section and having a cylindrical shape extending in the second direction and having a mesh in at least a part that allows air to flow out from the inside to the outside of the cylindrical shape. 【0140】 In the second embodiment, the dryer, in the first embodiment, has a collection device that faces the air intake of the inlet and has a wall that deflects the air in the inlet to the first opening and the second opening, respectively. 【0141】 In the third embodiment of the dryer, the first opening and the second opening face each other, and the wall is located between the first opening and the second opening. 【0142】 As a dryer in the fourth embodiment, in a dryer in any of the first to third embodiments, the first rotating section has a first circumferential wall section extending around a first axis along a first direction, and the second rotating section has a second circumferential wall section extending around a second axis along a second direction, and the first rotating section and the second rotating section are arranged such that the first axis and the second axis extend along each other and are aligned in a third direction. 【0143】 In the fifth embodiment, the dryer is configured such that, in the fourth embodiment, the first peripheral wall and the second peripheral wall are connected to each other at one end and connected to the inlet near the other end. 【0144】 In the sixth embodiment, as in the fifth embodiment, the other end of the first circumferential wall protrudes beyond the wall surface of the inlet to which the first circumferential wall is connected, and the other end of the second circumferential wall protrudes beyond the wall surface of the inlet to which the second circumferential wall is connected. 【0145】 In the seventh embodiment, as in the fifth or sixth embodiment, the portions of the first and second peripheral wall extending from one end each form a protrusion projecting toward the air intake. 【0146】 In the eighth embodiment, as a dryer in any of the fifth to seventh embodiments, the portions of the first and second peripheral walls extending from one end are provided in a curved shape that bulges radially outward. 【0147】 As a dryer in the ninth embodiment, in a dryer in any of the fourth to eighth embodiments, when viewed from the first direction, the inlet is located between the first axis and the second axis and extends along a fourth direction intersecting the third direction. 【0148】 In the tenth embodiment, the dryer is such that, in any of the first to ninth embodiments, the first opening and the second opening are each connected to the inlet. 【0149】 While this disclosure is adequately described in relation to preferred embodiments with reference to the accompanying drawings, various modifications and alterations will be obvious to those skilled in the art. Such modifications and alterations should be understood to be included within the scope of the invention as defined by the appended claims. [Industrial applicability] 【0150】 The dryer of this disclosure can suppress the deterioration of the drying performance of the dryer, and is therefore useful as a household clothes dryer, a commercial clothes dryer, any type of washer-dryer (e.g., a household drum-type washer-dryer, a top-loading washer-dryer), and other garment processing machines with a drying function. [Explanation of symbols] 【0151】 1 Dryer 2 cabinets 3 Outer tank 4-rotation drum 5 Drive Unit 6. Heat pump system 7 Collection device 8 Airflow channels 9. Blower 10 Water supply valve 11 Drain valve 12 Control Unit 70 cases 71 Inlet 72A, 72B Swivel section 73A, 73B Mesh members 78 Convex part 81 Air intake 83A, 83B peripheral wall part 84A, 84B opening 85A, 85B mesh 87 End 89A, 89B end L1, L2 axis
Claims
[Claim 1] The casing and A storage tank for containing the object, A blower for blowing air into the aforementioned storage tank, A collection device for collecting foreign matter from the air that has passed through the aforementioned containment tank, The system comprises the aforementioned blower, the aforementioned storage tank, and the aforementioned collection device, and an air passage connecting them. The aforementioned collection device, An inlet extending from an air intake port communicating with the aforementioned storage tank, A first swirling section having a first opening that communicates with the aforementioned inlet section, and which swirls the incoming air while sending it in a first direction, A second swirling section having a second opening that communicates with the aforementioned inlet section, and which swirls the incoming air while sending it in a second direction, A first mesh section is provided downstream of the first swivel section, has a cylindrical shape extending in the first direction, and has a mesh in at least a portion that allows air to flow out from the inside to the outside of the cylindrical shape, A dryer comprising: a second mesh section provided downstream of the second swirling section, having a cylindrical shape extending in the second direction, and having a mesh in at least a portion that allows air to flow out from the inside to the outside of the cylindrical shape. [Claim 2] The dryer according to claim 1, wherein the collection device has a wall portion that faces the air intake port of the inlet portion and deflects the air in the inlet portion toward the first opening and the second opening, respectively. [Claim 3] The first opening and the second opening face each other, The dryer according to claim 2, wherein the wall portion is located between the first opening and the second opening. [Claim 4] The first rotating portion has a first circumferential wall portion extending around a first axis along the first direction, The second rotating portion has a second circumferential wall portion extending around a second axis along the second direction, The dryer according to claim 1, wherein the first rotating section and the second rotating section are arranged such that the first axis and the second axis extend along each other and are aligned in a third direction. [Claim 5] The dryer according to claim 4, wherein the first peripheral wall portion and the second peripheral wall portion are connected to each other at one end and connected to the inlet portion near the other end. [Claim 6] The other end of the first peripheral wall portion protrudes beyond the wall surface of the inlet portion to which the first peripheral wall portion is connected. The dryer according to claim 5, wherein the other end of the second peripheral wall portion protrudes beyond the wall surface of the inlet portion to which the second peripheral wall portion is connected. [Claim 7] The dryer according to claim 5, wherein each portion of the first peripheral wall portion and the second peripheral wall portion extending from one end portion forms a protrusion that projects toward the air intake port. [Claim 8] The dryer according to claim 5, wherein each portion of the first peripheral wall and the second peripheral wall extending from one end is provided in a curved shape that bulges radially outward. [Claim 9] The dryer according to claim 4, wherein, when viewed from the first direction, the inlet is located between the first axis and the second axis and extends along a fourth direction intersecting the third direction. [Claim 10] The dryer according to any one of claims 1 to 9, wherein the first opening and the second opening are each connected to the inlet.