Clothes dryer and thread and scrap separating device thereof

Abstract

The invention provides a clothes dryer and a thread and scrap separating device thereof.The thread and scrap separating device comprises a separating channel, a discharging opening for discharging thread and scraps is formed in the side wall of the separating channel, and a first filtering unit and a second filtering unit are arranged in the separating channel in a staggered and spaced mode in the air outlet direction; the first filter unit extends from the edge of the side, close to the air outlet, of the exhaust port to the air inlet, and the second filter unit is located on the upstream of the first filter unit and matched with the first filter unit to cover the section of the separation channel. The ratio of the width of the overlapped part of the projections of the two filter units on the cross section of the separation channel to the width of the separation channel is (0.2-0.26): 1, and the ratio of the distance from the center of the overlapped part to the fixed end of the first filter unit or the second filter unit to the width of the separation channel is (0.2-0.5): 1; the influence of the filtering unit on the flow speed of the air flow is reduced while the thread scraps in the air flow are fully filtered, and the energy-saving effect of the clothes dryer is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of clothes dryers, and in particular relates to a clothes dryer and a lint separation device thereof. Background Art

[0002] During the operation of the dryer, the fluff and lint on the clothes will inevitably flow with the drying air and be blocked by the lint filter and remain on the lint filter. As the dryer is used, the fluff and lint accumulate on the lint filter and block the flow of drying air, resulting in reduced drying efficiency and poor drying effect.

[0003] In order to solve this problem, the prior art usually sets the lint filter device as a detachable structure. After the dryer has been used for a period of time, the filter device needs to be removed for cleaning, or the filter device needs to be cleaned by spraying water on it with a cleaning device to ensure the normal operation of the dryer.

[0004] A Chinese invention patent with application number CN201210575631.7 discloses a lint filter device, comprising a first lint filter layer, a second lint filter layer and a three-layer lint filter layer, wherein the first lint filter layer and the second lint filter layer are mutually engaged and installed under the door body of the front air duct at the air outlet of the dryer drum, and the third lint filter layer is arranged in the internal air path of the dryer, and the lint is filtered and collected by the multiple filter layers, and the filter device is taken out for cleaning; although the above scheme realizes the filtering and collection of lint, there is still lint attached to the filter screen to generate resistance to the flow of dry air. If the user fails to clean the filter screen in time, the drying efficiency of the dryer will be greatly reduced.

[0005] To this end, the Chinese invention patent with application number CN202110635726.2 discloses a clothes dryer and a lint separation device thereof, which achieves efficient filtration of lint by dividing the air duct into a filtering duct and a collecting duct, and using a filtering device arranged obliquely in the filtering duct to separate lint in the circulating air, and using the collecting duct to collect and discharge the lint, while avoiding lint covering the filtering device and affecting the air flow resistance; however, it is found in actual use that simply tilting the filtering device cannot fully avoid the adhesion of lint, and the length of the filtering device and the distance between adjacent filtering devices directly affect the final filtering effect. If it is set arbitrarily, it is likely to affect the normal circulation of the airflow, and instead lead to a decrease in the filtering efficiency.

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] The purpose of the present invention is to provide a lint separation device to address the problems in the above-mentioned prior art. The lint is blocked by a filter unit obliquely arranged in the separation channel and introduced into a collecting channel connected to the separation channel, thereby achieving rapid separation of lint from air mixed with lint during the drying process, and further reducing the impact on the air flow efficiency by limiting parameters such as the size and spacing of the filter unit.

[0008] Another object of the present invention is to provide a dryer using the above-mentioned lint separation device. Since the filter unit in the dryer can clean the lint on the filter unit through relative displacement with the cleaning unit and collect the lint independently, it is ensured that the filter unit is always in a clean state, avoiding lint adhesion to the filter unit and affecting the filtering efficiency of the filter unit, thereby improving the drying efficiency of the dryer.

[0009] In order to achieve the above-mentioned object, the present invention provides a lint separation device for a clothes dryer in a first aspect, comprising:

[0010] The separation channel has an air inlet and an air outlet at both ends, a discharge port for the discharge of wire scraps on the side wall, and a first filter unit and a second filter unit arranged at staggered intervals along the air outlet direction;

[0011] The first filter unit is formed by extending obliquely from the edge of the outlet close to the air outlet toward the direction of the air inlet; the second filter unit is arranged obliquely toward the direction close to the air outlet and is located between the air inlet and the first filter unit;

[0012] The projections of the first filter unit and the second filter unit in the air outlet direction cooperate to cover the cross section of the separation channel, and the ratio of the width of the overlapping portion to the width of the separation channel is (0.2-0.26):1.

[0013] In the above scheme, the projections of the first filter unit and the second filter unit in the air outlet direction cooperate to cover the cross-section of the separation channel, thereby being able to filter the airflow passing through the separation channel. Since the first filter unit and the second filter unit are arranged to be inclined in the same direction, the blocked lint is discharged to the outside of the separation channel through the discharge port under the drive of the airflow and the guidance of the first filter unit and the second filter unit, thereby avoiding the accumulation of lint in the separation channel and affecting the efficiency of the airflow.

[0014] At the same time, since the airflow is inevitably affected by the first filter unit and the second filter unit and changes its flow direction during the process of passing through, by limiting the ratio of the overlapping part of the first filter unit and the second filter unit to the width of the separation channel, it is avoided that the overlapping part of the two is too large to slow down the speed of the airflow, and it is also avoided that the overlapping part is too small to achieve sufficient filtration of wire chips.

[0015] Furthermore, the first filter unit and the second filter unit both have a fixed end and a free end; the first filter unit is connected to the edge of the discharge port through the fixed end, and the second filter unit is fixed to a channel wall on a side opposite to the discharge port through the fixed end;

[0016] The free ends of the first filter unit and the second filter unit are movably arranged relative to the separation channel.

[0017] In the above scheme, the free ends of the first filter unit and the second filter unit are movably arranged and can vibrate to a certain extent under the influence of airflow. Since the fixed end is fixedly connected to the separation channel, the vibration amplitude is relatively small and will not cause a large disturbance to the airflow. At the same time, the vibration can also make the wire scraps detach more quickly.

[0018] Furthermore, the first filter unit and the second filter unit are sieve plates, which utilize the rigidity of the sieve plates themselves to better filter the wire scraps, and can generate a certain amplitude of vibration under the influence of airflow, which is conducive to the separation of wire scraps from the surface of the sieve plates.

[0019] And further, in the cross section of the separation channel, the ratio of the distance from the center of the overlapping portion to the fixed end of the first filter unit or the second filter unit to the width of the separation channel is (0.2-0.5):1.

[0020] In the above scheme, by limiting the position of the overlapping part in the separation channel, it is ensured that there is a sufficient gap between the free ends of the first filter unit and the second filter unit and the side wall of the separation channel to achieve the separation of wire chips; at the same time, it is also ensured that there is enough airflow to directly enter between the first filter unit and the second filter unit without being affected by the second filter unit, and to a certain extent drive the part of the airflow that is affected by the second filter unit and has its speed reduced to pass through at a higher speed, thereby reducing the influence of the first filter unit and the second filter unit on the airflow efficiency.

[0021] Furthermore, the ratio of the spacing distance between the first filter unit and the second filter unit to the width of the separation channel is (0.4-0.6):1.

[0022] It should be noted here that the interval between the first filter unit and the second filter unit is usually the distance between the intersection of the extended line of the free end of the second filter unit and the side wall of the separation channel and the fixed end of the first filter unit.

[0023] In the above scheme, by limiting the spacing distance between the first filter unit and the second filter unit, it is ensured that the airflow passing through the second filter unit can more smoothly merge with the airflow blocked by the second filter unit and the airflow not blocked by the second filter unit, thereby reducing the probability of turbulence generation and improving the efficiency of airflow passage.

[0024] Furthermore, the inclination angle of the first filter unit is greater than the inclination angle of the second filter unit.

[0025] The airflow is affected by the second filter unit and its speed is reduced, so the lint is more likely to stay on the surface of the first filter unit; the above scheme sets the inclination angle of the first filter unit to be greater than the inclination angle of the second filter unit. On the one hand, it can avoid the adhesion of lint to the surface of the first filter unit, and on the other hand, it can further reduce the impact on the airflow velocity, thereby further improving the efficiency of airflow while avoiding the adhesion of lint.

[0026] Furthermore, the wire scrap separation device also includes:

[0027] a collecting channel, connected to the separation channel through the discharge port;

[0028] The collecting unit is connected with the discharge port through a collecting channel and is used for collecting wire scraps.

[0029] The above solution guides the wire scraps into the collection unit through the collection channel, thereby realizing centralized collection of the wire scraps and facilitating cleaning by the user.

[0030] Further, the collection channel and the separation channel are arranged side by side, have a common first channel wall, and the discharge port is arranged on the first channel wall;

[0031] The collecting channel has an air inlet and an air outlet which are arranged in the same direction as the separating channel, and is connected with the collecting unit through the air outlet.

[0032] Furthermore, the ratio of the width of the collection channel to the width of the separation channel is 1:(2.5-3.5).

[0033] In the above scheme, the collecting channel and the separation channel have an air inlet and an air outlet respectively, that is, the airflow can enter the collecting channel and the separation channel at the same time. Since the airflow entering the separation channel is blocked, the flow velocity is reduced, and then negative pressure is generated at the discharge port due to the influence of the flow velocity difference of the airflow on both sides, which is more conducive to the discharge of wire chips; further, by limiting the width ratio of the collecting channel and the separation channel, the generation of negative pressure is achieved with less airflow loss. If the width of the separation channel is too wide, the airflow entering the separation channel is too little, and the negative pressure cannot be smoothly formed, but it will affect the discharge of wire chips; if the width of the separation channel is too narrow, on the one hand, it will lead to a large amount of waste of airflow, and on the other hand, it will also reduce the flow velocity difference between the airflow in the separation channel and the collecting channel, resulting in a decrease in negative pressure.

[0034] Furthermore, a first filter unit and a second filter unit are used as a group of filter components, and at least one group of filter components is arranged along the air outlet direction of the separation channel. Multiple groups of filter components can further improve the filtering effect. In the multiple groups of filter components, the first filter unit and the second filter unit are arranged alternately in sequence, and the interval distance between adjacent first filter units and second filter units is equal.

[0035] The second aspect of the present invention provides a clothes dryer, which adopts the lint separation device described in the above solution.

[0036] Specifically, the lint separation device is arranged in the front air duct of the clothes dryer, and the front air duct is separated by a collecting channel and a separating channel;

[0037] The separation channel is formed as a part of the internal circulation air path of the clothes dryer;

[0038] A cavity for accommodating the collecting unit is provided downstream of the front air duct, the cavity is communicated with the outside through an opening provided on the front panel of the clothes dryer, and the collecting unit is detachably provided through the opening.

[0039] The beneficial effects of the present invention are:

[0040] 1. The first filter unit and the second filter unit are alternately arranged in the separation channel. By limiting the width of the overlapping part of the first filter unit and the second filter unit, the position of the overlapping part in the separation channel, and the distance between the first filter unit and the second filter unit, the influence of the wire chip separation device on the airflow circulation efficiency is reduced while ensuring the wire chip filtering efficiency.

[0041] 2. The wire scrap separation device has a collection channel and a separation channel arranged side by side. Driven by the airflow and guided by the first filter unit and the second filter unit, the wire scraps enter the collection channel through the discharge port and are then collected by the collection unit, ensuring that the wire scraps can quickly enter the collection channel after being separated from the airflow and will not remain in the separation channel and affect the wire scrap filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a first perspective structural schematic diagram of the wire scrap separation device of the present invention.

[0043] Figure 2 This is a second perspective structural schematic diagram of the wire scrap separation device of the present invention.

[0044] Figure 3 for Figure 1 A cross-sectional view of the yarn chip separation device in one direction is shown.

[0045] Figure 4 for Figure 2 A cross-sectional view of the yarn chip separation device in one direction is shown.

[0046] In the figure: 1, separation channel; 2, collection channel; 3, first filter unit; 4, discharge port; 5, second filter unit; 6, first channel wall. DETAILED DESCRIPTION

[0047] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that the following embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0048] In the description of the present invention, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0049] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0050] The present invention provides a wire scrap separation device, such as Figures 1 to 4 As shown, including

[0051] The separation channel 1 has an air inlet and an air outlet at both ends, a discharge port 4 for discharging wire scraps is provided on the side wall, and a first filter unit 3 and a second filter unit 5 are arranged in a staggered manner along the air outlet direction;

[0052] The first filter unit 3 is formed by extending obliquely from the edge of the outlet 4 close to the air outlet toward the direction of the air inlet; the second filter unit 5 is arranged obliquely in the same direction as the first filter unit 3, and is located between the air inlet and the first filter unit 3;

[0053] The first filter unit 3 and the second filter unit 5 cooperate to cover the cross section of the separation channel 1 , and the ratio of the width of the overlapping portion to the width of the separation channel 1 is (0.2-0.26):1.

[0054] In the above scheme, the above scheme realizes sufficient filtration of the airflow passing through the separation channel 1 by staggered arrangement in the separation channel 1 and cooperating with the first filter unit 3 and the second filter unit 5 covering the cross-section of the separation channel 1; at the same time, by limiting the coverage range of the first filter unit 3 and the second filter unit 5, the influence on the airflow speed is reduced, ensuring that the airflow speed will not be greatly affected while having a high wire scrap filtration efficiency.

[0055] The present invention is further described in detail below with reference to specific embodiments.

[0056] As a specific implementation of the present invention, this embodiment provides a wire scrap separation device, such as Figure 1 and Figure 3 As shown, the separation channel 1 of the lint separation device is a cylindrical structure with both ends penetrating the whole, and an air inlet and an air outlet are formed at the two ends respectively. The second filter unit 5 and the first filter unit 3 are arranged at intervals along the air outlet direction, that is, the first filter unit 3 and the second filter unit 5 are respectively arranged on the opposite side walls of the separation channel 1, and the two cooperate to cover the cross-section of the separation channel 1, so as to filter the lint during the airflow passing through.

[0057] In the present embodiment, the first filter unit 3 and the second filter unit 5 are both square sieve plates with a certain rigidity, which will not undergo significant deformation under the influence of airflow; specifically, the first filter unit 3 and the second filter unit 5 both have a fixed end and a free end, and are fixedly connected to the separation channel 1 through the fixed end. At this time, the first filter unit 3 and the second filter unit 5 are fixed in the separation channel 1 in the form of a cantilever beam, and vibrate slightly due to the disturbance of the airflow, which can effectively avoid the adhesion of wire chips; and the first filter unit 3 and the second filter unit 5 are arranged to be inclined in the same direction, which can enable the wire chips to be detached in time under the drive of airflow and the influence of gravity, thereby ensuring that the interior of the separation channel 1 is always kept clean.

[0058] To this end, one side of the separation air duct has an exhaust port 4 that is arranged through it, one end of the first filter unit 3 is connected to the side of the exhaust port 4 away from the air inlet, and is arranged to extend obliquely in the direction close to the air inlet, the second filter unit 5 is located upstream of the first filter unit 3 along the air outlet direction, and is arranged obliquely in the same direction as the first filter unit 3, the projections of the first filter unit 3 and the second filter unit 5 on the cross section of the separation channel 1 overlap, and the two cooperate to cover the cross section of the separation channel 1, wherein the ratio of the width of the overlapping part to the width of the separation channel 1 is (0.2-0.26): 1, by limiting the width of the overlapping part, it is possible to reduce the impact on the airflow speed while ensuring sufficient filtering of the wire scraps, because the airflow is inevitably blocked by the first filter unit 3 and the second filter unit 5 during the passage, if the width of the overlapping part of the first filter unit 3 and the second filter unit 5 is too wide, the airflow is more severely blocked, and a speed difference is generated in the separation channel 1, which leads to the generation of turbulence and eddy currents, affecting the airflow speed, and may also affect the discharge of wire scraps, causing the wire scraps to be more easily retained and attached to the surfaces of the first filter unit 3 and the second filter unit 5.

[0059] Furthermore, if one of the first filter unit 3 or the second filter unit 5 is very long and the other is very short, the shorter one cannot fully exert its filtering function, but instead causes the lint to be unable to be fully filtered. For this reason, it is defined that on the cross section of the separation channel 1, the ratio between the distance from the center of the overlapping part of the first filter unit 3 and the second filter unit 5 to the fixed end of the first filter unit 3 or the second filter unit 5 and the width of the separation channel 1 is (0.2-0.5): 1; by defining the position of the overlapping part on the cross section of the separation channel 1, the above-mentioned problem is effectively avoided, and it is ensured that there is sufficient gap between the free ends of the first filter unit 3 and the second filter unit 5 and the side wall of the separation channel 1 to achieve the separation of lint; at the same time, it is also ensured that there is enough airflow to directly enter between the first filter unit 3 and the second filter unit 5 without being affected by the second filter unit 5, and to a certain extent drive the part of the airflow that is affected by the second filter unit 5 and reduces its speed to pass at a higher speed, reducing the influence of the first filter unit 3 and the second filter unit 5 on the airflow passing efficiency, thereby ensuring the stability of the lint filtering effect; it should be noted here that the center of the overlapping part of the first filter unit 3 and the second filter unit 5 refers to the position where the intersection of the diagonals of the overlapping area is located.

[0060] On this basis, the technicians also found that the distance between the first filter unit 3 and the second filter unit 5 also has a great influence on the lint filtration efficiency and the speed of airflow. If the distance between the first filter unit 3 and the second filter unit 5 is too close, on the one hand, the vibration of the first filter unit 3 and the second filter unit 5 will be restricted, causing the lint to easily adhere to the surface of the filter unit; on the other hand, the part of the airflow that is affected by the second filter unit 5 and has a reduced speed cannot be fully mixed with the unblocked part of the airflow, resulting in uneven airflow velocity, which is easy to generate vortices and significantly affects the speed of airflow; on the contrary, if the distance between the first filter unit 3 and the second filter unit 5 is too large, the lint blocked by the second filter unit 5 is easily affected by the airflow and dispersed during the falling process, and there is a higher probability that it will not be blocked by the first filter unit 3, resulting in a decrease in the lint filtration efficiency. For this reason, the ratio between the spacing distance between the first filter unit 3 and the second filter unit 5 and the width of the separation channel 1 is limited to (0.4-0.6):1.

[0061] Furthermore, considering the different disturbance degrees of the first filter unit 3 and the second filter unit 5, the first filter unit 3 is less impacted by the airflow, and thus the vibration amplitude is relatively low, and the lint is more easily attached to the surface of the first filter unit 3. Therefore, the inclination angle of the first filter unit 3 is set to be greater than the inclination angle of the second filter unit 5, so that the angle between the falling path of the lint and the surface of the first filter unit 3 becomes smaller, and thus the lint can be more smoothly discharged from the discharge port 4 under the guidance of the first filter unit 3.

[0062] The test results of the embodiments and comparative examples using different proportions, as well as the corresponding wire scrap filtration efficiency, wire scrap residual rate and flow rate ratio are shown in the following table. It should be noted in advance that the wire scrap filtration efficiency in the following table refers to the ratio of the amount of wire scraps discharged from the discharge port to the total amount of wire scraps fed into the separation channel under the same total amount of wire scraps, the same wire scrap entry method, the same duration and the same air flow rate; the wire scrap residual rate refers to the ratio of the amount of wire scraps attached to the surface of the first filter unit and the second filter unit under the above conditions to the total amount of wire scraps; the flow rate ratio refers to the ratio of the flow rate when the airflow leaves the separation channel to the flow rate when it enters the separation channel:

[0063]

[0064] It can also be seen from the above table that the ratio specified in the present invention can ensure the lint filtration efficiency while better reducing the adhesion rate of lint on the surfaces of the first filter unit and the second filter unit, and at the same time can reduce the blocking effect on the airflow, ensuring that the airflow passes at a higher speed.

[0065] As another embodiment of the present invention, Figure 2 and Figure 4As shown, the wire scrap separation device also includes a collecting channel 2, which is connected to the discharge port 4, and the collecting unit is connected to the collecting channel 2. After the wire scraps are discharged from the discharge port 4, they can be guided by the collecting channel 2 into the collecting unit for unified collection, which is convenient for cleaning and maintenance.

[0066] Furthermore, in order to improve the lint collection efficiency and collection effect, the collecting channel 2 and the separation channel 1 are arranged side by side and have a common first channel wall 6. The discharge port 4 is arranged on the first channel wall 6 to connect the collecting channel 2 and the separation channel 1. At this time, the collecting channel 2 and the separation channel 1 have air inlets and air outlets arranged in the same direction. When filtering lint, the collecting channel 2 and the separation channel 1 intake air synchronously. The airflow in the collecting air duct retains a relatively higher flow rate because it is not blocked, thereby forming a negative pressure at the discharge port 4, so that the lint can pass through the discharge port 4 more smoothly and avoid adhesion to the surface of the first filter unit 3.

[0067] In order to fully meet the above requirements, there is a certain proportional relationship between the width of the collecting channel 2 and the width of the separation channel 1. The ratio of the width of the collecting channel 2 to the width of the separation channel 1 is limited to 1: (2.5-3.5). At this time, negative pressure can be generated with less airflow loss. If the width of the separation channel 1 is too wide, the airflow entering the separation channel 1 is too small, and the negative pressure cannot be formed smoothly, but it will affect the discharge of wire chips; if the width of the separation channel 1 is too narrow, on the one hand, it will lead to a large amount of airflow waste, and at the same time it will also reduce the flow rate difference of the airflow in the separation channel 1 and the collecting channel 2, resulting in a decrease in negative pressure.

[0068] Different embodiments and comparative examples obtained by adding a collection channel on the basis of embodiment 1 and adjusting the width ratio of the separation channel and the collection channel, as well as the corresponding lint filtration efficiency and lint residual rate are shown in the following table:

[0069]

[0070] It can be seen from the above table that the width ratio of the collecting channel and the separation channel specified in the present invention can significantly reduce the lint residue rate while ensuring a high lint filtration efficiency. When the collecting channel is narrow, the airflow entering the collecting channel cannot fully form a negative pressure, but may enter the separation channel to blow away the lint attached to the first filter unit, resulting in a decrease in the lint filtration efficiency; when the collecting channel is wide, there is almost no pressure difference on both sides of the first channel wall, and the lint cannot pass through the discharge port well, resulting in an increase in the lint residue rate.

[0071] The present invention also provides a clothes dryer using the lint separation device described in the above embodiment, as follows.

[0072] Embodiment 11

[0073] As an embodiment of the present invention, this embodiment provides a wire scrap separation device as described in the first embodiment.

[0074] In this embodiment, the lint separation device is arranged in the front air duct of the dryer, the collecting channel 2 forms a part of the internal circulation air path of the dryer, the exhaust port 4 faces the front side of the dryer, and a lint outlet is correspondingly provided on the front panel of the dryer, so that the lint can be directly discharged to the outside of the dryer.

[0075] Considering that the above solution may affect the environment around the dryer, a detachable collecting unit is provided on the front panel of the dryer. The collecting unit is connected with the discharge port through the lint outlet on the front panel, thereby realizing the unified collection of lint.

[0076] Since the lint separation device can fully filter the lint while reducing the impact on the air flow rate, the drying energy consumption of the dryer is reduced, and the energy-saving performance of the dryer is improved; and the lint separation device has a lower lint attachment ratio, which can ensure long-term use without the user having to clean the lint separation device, thereby improving the user experience.

[0077] This embodiment can also adopt the wire scrap separation device as described in Embodiments 2 to 7. The solutions obtained by combining this embodiment with Embodiments 2 to 7 respectively also fall within the protection scope of the present invention.

[0078] Embodiment 12

[0079] As another embodiment of the present invention, this embodiment differs from the eleventh embodiment in that it has a wire scrap separation device as described in the eighth embodiment.

[0080] In this embodiment, the lint separation device is arranged in the front air duct of the dryer, and the front air duct is separated by the collecting channel 2 and the separating channel 1; wherein the separating channel 1 forms a part of the internal circulating air path of the dryer, and the collecting channel 2 is connected to the collecting unit to collect the lint uniformly.

[0081] Specifically, a cavity for accommodating a collection unit is provided downstream of the front air duct, and the cavity is connected to the outside through an opening provided on the front panel of the dryer. The collection unit is detachably connected to the dryer through the opening, so that the user can clean the collection unit more conveniently, and the size of the opening can be comparable to the collection unit, thereby ensuring the aesthetics of the front panel of the dryer.

[0082] The collection unit can be detachably connected to the washing machine through a snap-on structure, or a push-to-pop structure can be set in the cavity to achieve installation and removal of the collection unit. A door body covering the opening can also be independently set to fix the collection unit in the cavity through the door body.

[0083] This embodiment may also adopt the wire scrap separation device as described in the ninth or tenth embodiment, and the solution obtained by combining this embodiment with the ninth or tenth embodiment also falls within the protection scope of the present invention.

[0084] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A wire scrap separation device, characterized in that: include, The separation channel has an air inlet and an air outlet at both ends, a discharge port for the discharge of wire scraps is provided on the peripheral wall, and a first filter unit and a second filter unit are arranged in a staggered interval along the air outlet direction; The first filter unit is formed by extending obliquely from the edge of the outlet close to the air outlet toward the direction of the air inlet; the second filter unit is arranged obliquely toward the direction close to the air outlet and is located between the air inlet and the first filter unit; The projections of the first filter unit and the second filter unit in the air outlet direction cooperate to cover the cross section of the separation channel, and the ratio of the width of the overlapping portion to the width of the separation channel is (0.2-0.26):

1.

2. The wire scrap separation device according to claim 1, characterized in that: The first filter unit and the second filter unit both have a fixed end and a free end; the first filter unit is connected to the edge of the discharge port through the fixed end, and the second filter unit is fixed to a channel wall on a side opposite to the discharge port through the fixed end; The free ends of the first filter unit and the second filter unit are movably arranged relative to the separation channel.

3. The wire scrap separation device according to claim 2, characterized in that: In the cross section of the separation channel, the ratio of the distance from the center of the overlapping portion to the fixed end of the first filter unit or the second filter unit to the width of the separation channel is (0.2-0.5):

1.

4. The wire scrap separation device according to claim 1, characterized in that: The ratio between the spacing distance between the first filter unit and the second filter unit and the width of the separation channel is (0.4-0.6): 1; Preferably, the inclination angle of the first filter unit is greater than the inclination angle of the second filter unit.

5. The wire scrap separation device according to claim 1, characterized in that: The inclination angle of the first filter unit is greater than the inclination angle of the second filter unit.

6. The wire scrap separation device according to any one of claims 1 to 5, characterized in that: Also includes, a collecting channel, connected to the separation channel through the discharge port; The collecting unit is connected with the discharge port through a collecting channel and is used for collecting wire scraps.

7. The wire scrap separation device according to claim 6, characterized in that: The ratio of the width of the collection channel to the width of the separation channel is 1:(2.5-3.5).

8. The wire scrap separation device according to claim 6, characterized in that: The collecting channel and the separating channel are arranged side by side and have a common first channel wall, and the discharge port is arranged on the first channel wall; The collecting channel has an air inlet and an air outlet arranged in the same direction as the separating channel, and is connected to the collecting unit through the air outlet.

9. A clothes dryer, characterized in that: A wire scrap separation device as described in any one of claims 1 to 8.

10. The clothes dryer according to claim 9, characterized in that: The lint separation device is arranged in the front air duct of the clothes dryer, and the front air duct is separated by a collecting channel and a separating channel; The separation channel is formed as a part of the internal circulation air path of the clothes dryer; A cavity for accommodating the collecting unit is provided downstream of the front air duct, the cavity is communicated with the outside through an opening provided on the front panel of the clothes dryer, and the collecting unit is detachably provided through the opening.

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