A clothes dryer and an air duct thereof having lint filtering assembly

Abstract

The application discloses a clothes dryer and an air duct with a lint filtering assembly thereof. The filtering assembly comprises a filtering part arranged inside an air duct body for filtering and guiding lint, a collecting part arranged outside the air duct body and communicated with the filtering part for collecting the lint, an air duct wall penetrating through the air duct body, a connecting part for connecting the collecting part and the filtering part, the connecting part comprising a first connecting part extending to the inside of the filtering part inside the air duct body and a second connecting part extending to the outside of the air duct body and communicated with the collecting part, and an exhaust unit arranged on the collecting part. The filtering part comprises a filtering unit with a sieve plate arranged inside for filtering the lint and a guiding unit arranged in parallel with the filtering unit inside the air duct body for guiding the lint to be discharged. The lint filtered by the filtering unit enters the guiding unit and then enters the collecting part under the guidance of circulating air, and then the circulating air is discharged from the collecting part through the exhaust unit, so that the lint and the circulating air in the air duct are fully separated.

Description

Technical Field

[0001] This invention belongs to the field of clothes dryers, and specifically relates to a clothes dryer and its air duct with a lint filter component. Background Technology

[0002] During the operation of a clothes dryer, lint and dander from clothing inevitably flow with the drying air and are blocked by the lint filter, remaining on the filter. As the dryer is used, the lint and dander accumulate on the lint filter, obstructing the flow of drying air, which reduces the drying efficiency and worsens the drying effect.

[0003] To address this issue, existing technologies typically employ a detachable lint filter. After a period of use, the filter needs to be removed for cleaning, or it can be cleaned by spraying water onto the filter using a cleaning device, thus ensuring the dryer's normal operation.

[0004] For example, Chinese invention patent application number CN201210575631.7 discloses a lint filter device, including a first lint filter layer, a second lint filter layer, and a third lint filter layer. The first and second lint filter layers are interlocked and installed below the door of the front air duct at the air outlet of the dryer drum. The third lint filter layer is set in the internal air duct of the dryer. The lint is filtered and collected through multiple filter layers, and the filter device can be removed for cleaning. Although the above solution achieves the filtration and collection of lint, the lint adhering to the filter screen creates resistance to the flow of dry air, reduces the circulation efficiency of the circulating air in the air duct, and the filtration effect of the lint filter device decreases with long-term use, which directly affects the filtration effect of the circulating air.

[0005] Chinese invention patent application number CN202110297801.9 discloses a filtration mechanism and a clothes dryer, specifically disclosing that the filtration mechanism includes a filter box, which is located in the air duct and divides the air duct into a clean air section and a turbid air section. A collection part passes through the air duct wall and communicates with the turbid air section. At the connection point, there is a sealing plate that can fold inward to block the connection opening. After the filter box filters the lint, the sealing plate rotates to close the air duct, and the lint attached to the filter box enters the collection part for collection under the drive of the wind. Although the above solution achieves the collection of lint in the collection part located outside the air duct body, avoiding the lint remaining in the air duct and affecting the circulation efficiency of the circulating air, the filter box actually still separates the lint by blocking it. The above filtration method is relatively easy to be damaged.

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

[0007] The purpose of this invention is to provide an air duct with a lint filter assembly to address the problems in the prior art. The air duct includes a filter section located inside the air duct and a collection section located outside the air duct and communicating with the filter section. Lint filtered out by the filter section enters the collection section located outside the air duct for collection, thereby achieving full separation of lint and circulating air within the air duct.

[0008] Another aspect of the present invention provides a clothes dryer having an air duct with a lint filter assembly as described in the above solution, wherein lint is collected by a collection part provided outside the air duct, and the user only needs to clean the collection part, thereby improving the user experience.

[0009] To achieve the above objectives, a first aspect of the present invention provides an air duct with a lint filter assembly, comprising an air duct body and a lint filter assembly disposed on the air duct body for filtering lint, the lint filter assembly comprising, The collection section is used to collect thread scraps; The filter section, which is connected to the collection section, is located inside the air duct body and is used to filter lint and guide lint into the collection section.

[0010] Furthermore, the collection part is located outside the air duct body, and the peripheral wall of the air duct body is provided with through holes, through which the filtering part and the collection part are connected.

[0011] In the above scheme, after being filtered by the filter section, the lint will not remain inside the air duct, but will be directly guided by the filter section into the collection section located outside the air duct to collect the lint, thus achieving full separation of the lint and the circulating air inside the air duct.

[0012] Furthermore, the air duct with the lint filter assembly also includes, A connecting part extends through the through hole and passes through the peripheral wall of the air duct body to connect the filtering part and the collecting part.

[0013] Furthermore, the connecting portion extends outward from the edge of the through hole and includes, The first connecting part extends from the edge of the through hole into the interior of the air duct body and is detachably connected to the filter part. The second connecting part extends from the edge of the through hole to the outside of the air duct body and is detachably connected to the collecting part.

[0014] In the above solution, the collection section and the filter section are detachably connected to the connecting section, which reduces the difficulty of maintenance and allows for the individual replacement of the parts that need to be replaced, thus reducing the cost of maintenance and replacement.

[0015] Furthermore, the first connecting portion extends inward perpendicularly to the duct wall of the duct body, and then extends parallel to the duct wall of the duct body into the interior of the filter portion.

[0016] In the above solution, the first connecting part extends into the filter part, and the lint filtered by the filter part can enter the first connecting part more stably, preventing the lint from leaking to the outside from the gap at the connection between the filter part and the first connecting part.

[0017] Furthermore, the filtration section in the air duct with the lint filtering assembly includes a filter unit with a sieve plate inside for filtering lint. The guiding unit, connected to the filtering unit, is used to guide the lint blocked by the sieve plate to be discharged; the collecting part is connected to the guiding unit.

[0018] Furthermore, the air duct body has an air inlet and an air outlet, the filter unit and the guide unit are respectively arranged side by side inside the air duct body as a first air duct and a second air duct connecting the air inlet and the air outlet, and the collection part is connected to the air outlet of the second air duct.

[0019] Furthermore, the sieve plate is inclined at the connection between the filtering unit and the guiding unit.

[0020] In the above scheme, the wire debris blocked by the sieve plate can enter the guiding unit more smoothly under the guidance of the inclined sieve plate, and then enter the collection section under the guidance of the guiding unit. This avoids the wire debris from staying and accumulating inside the air duct for a long time, and achieves full separation of wire debris and circulating air.

[0021] Furthermore, the sieve plate includes, The first sieve plate is fixed inside the filter unit on the side away from the guide unit, and extends downward at an angle from the side away from the guide unit toward the connection point; The second sieve plate is fixed at the lower edge of the connection point and extends upward parallel to the first sieve plate; the first sieve plate and the second sieve plate do not contact each other and are located above the second sieve plate.

[0022] Furthermore, the projection of the first screen plate onto the cross-section of the filter unit covers the side away from the guide unit, and the projection of the second screen plate onto the cross-section of the filter unit covers the side close to the guide unit. The projections of the first screen plate and the second screen plate onto the cross-section of the filter unit partially overlap.

[0023] In the above scheme, neither the first screen plate nor the second screen plate covers the cross section of the filter unit. By partially overlapping the coverage areas of the first screen plate and the second screen plate, the lint blocked on the first screen plate moves along the inclined direction of the first screen plate and falls onto the second screen plate, and enters the guide unit along the second screen plate. Without reducing the blocking effect of the screen plate, the lint can be discharged from the filter unit more quickly under the drive of part of the airflow.

[0024] Furthermore, the collection section of the air duct with the lint filter assembly includes, A collection port, through which the collection section communicates with the filter section; An exhaust unit, at least partially replacing the housing of the collection section, is used to exhaust the airflow entering the collection section.

[0025] Furthermore, the exhaust unit is a filter screen.

[0026] In the above scheme, since the guiding unit and the filtering unit have the same air inlet, the wire debris entering the guiding unit enters the collection section under the drive of part of the circulating air, and then is discharged from the collection section through the exhaust unit. This avoids the circulating air carrying wire debris entering the collection section from being unable to be discharged and forming eddies in the collection section, which would affect the smooth entry of the wire debris. By setting the exhaust unit as a filter screen, the wire debris can be blocked in the collection section while the circulating air is discharged, thus realizing the collection of wire debris.

[0027] Furthermore, the collection section is a collection bag made of a filter screen.

[0028] In the above solution, the collection bag made of filter screen does not have a fixed shape, which increases the volume of the collection section, can collect more lint, reduces the frequency of cleaning for users, and improves the user experience.

[0029] A second aspect of the present invention provides a clothes dryer having an air duct with a lint filter assembly as described in the above-described solution.

[0030] Furthermore, the air duct with lint filter components serves as the front air duct of the dryer.

[0031] The beneficial effects of this invention are as follows: The filter section, located inside the duct body, filters lint from the circulating air and then guides the filtered lint to a collection section located outside the duct body, achieving complete separation of lint and circulating air. The filter section includes a filter unit and a guide unit. The inclined screen plate in the filter unit can guide the lint in the circulating air into the guide unit while separating it. Under the guidance of the guide unit, the lint enters the collection section, realizing simultaneous filtration and discharge of lint. This avoids filtering before collection, which can lead to lint remaining inside the duct during filtration and reduced filtration efficiency. The collection section and the filter section are connected by a connecting part, improving the stability of the connection and enabling a detachable connection between the collection section and the filter section, thus improving maintenance convenience. The connecting section includes a first connecting section and a second connecting section. The first connecting section extends into the air duct and into the filter section, allowing lint to enter the first connecting section more stably and preventing lint from leaking out from the gap at the connection between the filter section and the first connecting section. The exhaust unit on the collection section discharges the circulating air that sends lint into the collection section, preventing the circulating air from forming eddies in the collection section and preventing lint from entering the collection section smoothly. The exhaust unit is a filter screen, which blocks lint while discharging the circulating air, preventing lint from being discharged with the circulating air. The collection section is a collection bag made of filter screen, which improves the exhaust effect and increases the capacity of the collection section, reduces the user's cleaning frequency, and improves the user experience. Attached Figure Description

[0032] Figure 1 is a schematic diagram of an air duct with a lint filter assembly according to the present invention.

[0033] Figure 2 is a schematic diagram of another structure of the air duct with a lint filter assembly according to the present invention.

[0034] In the diagram: 1. Air duct body; 11. Air duct wall; 2. Filter section; 21. Filter unit; 22. Guide unit; 3. Connecting part; 31. First connecting part; 32. Second connecting part; 4. Collection section; 41. Exhaust unit. Detailed Implementation

[0035] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. Those skilled in the art will understand 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.

[0036] In the description of this invention, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Example 1 As an embodiment of the present invention, this embodiment provides an air duct with a lint filter assembly, including an air duct body 1 and a lint filter assembly disposed on the air duct body 1 for filtering lint. The lint filter assembly includes... The filter section 2 is located inside the air duct body 1 and is used to filter and guide lint. The collection section 4 is located outside the air duct body 1 and communicates with the filter section 2 through a through hole on the peripheral wall of the air duct body 1. It is used to collect the lint guided by the filter section 2. The connecting part 3 extends through the through hole into the peripheral wall of the air duct body 1, and is used to connect the filtering part 2 and the collecting part 4.

[0039] In this embodiment, the connecting part 3 includes, The first connecting part 31 extends from the edge of the through hole into the interior of the air duct body 1 and is detachably connected to the filter part 2; The second connecting part 32 extends from the edge of the through hole to the outside of the air duct body 1 and is detachably connected to the collecting part 4.

[0040] The above solution achieves a tight connection between the filter section 2 and the collection section 4 through the connecting part 3. At the same time, both the filter section 2 and the collection section 4 are detachably connected to the connecting part 3, which reduces the difficulty of operation during maintenance, enables the individual replacement of the parts that need to be replaced, and reduces the cost of maintenance and replacement.

[0041] Furthermore, the first connecting portion 31 extends inward perpendicularly to the duct wall 11 of the duct body 1, and then extends parallel to the duct wall 11 of the duct body 1 into the interior of the filter portion 2.

[0042] The above solution extends the first connecting part 31 into the filter part 2, so that the lint filtered by the filter part 2 can enter the first connecting part 31 more stably, and prevent the lint from leaking to the outside from the gap at the connection between the filter part 2 and the first connecting part 31.

[0043] Furthermore, the filter section 2 includes, Filter unit 21 has an internal sieve plate for filtering lint; The guiding unit 22 is connected to the filtering unit 21 and is used to guide the lint blocked by the sieve plate to be discharged. The collecting unit 4 is connected to the guiding unit 22.

[0044] Furthermore, the air duct body 1 has an air inlet and an air outlet. The filter unit 21 and the guide unit 22 are respectively arranged side by side inside the air duct body 1 to connect the air inlet and the air outlet. The collection part 4 is connected to the air outlet of the second air duct.

[0045] In the above scheme, the lint filtered out from the first air duct enters the second air duct and enters the collection unit 4 under the guidance of the second air duct, thus achieving full separation of lint and circulating air.

[0046] Furthermore, the sieve plate is inclined toward the connection between the filter unit 21 and the guide unit 22.

[0047] In the above scheme, the inclined sieve plate can guide the lint to enter the second air duct more smoothly, and then enter the collection section 4 through the second air duct, avoiding the lint from staying inside the filter section 2 and affecting the filtration effect.

[0048] Furthermore, the collection section 4 is equipped with an exhaust unit 41 for discharging the circulating air entering the collection section 4. The exhaust unit 41 is a filter screen, which is installed on the upper part of the collection section 4, replacing part of the housing of the collection section 4. After the circulating air sends the wire debris into the collection section 4, if it cannot be discharged from the inside of the collection section 4, it may accumulate in the collection section 4 and form a vortex, which will prevent the wire debris from entering the collection section 4 and reduce the wire debris collection effect. By setting the exhaust unit 41, the circulating air entering the collection section 4 can be discharged. Since the exhaust unit 41 is a filter screen, it can block the wire debris while discharging the circulating air, preventing the wire debris from being discharged with the circulating air, thus realizing the collection of wire debris.

[0049] Example 2 As another embodiment of the present invention, this embodiment provides an air duct with a lint filter assembly, having the same structure as in Embodiment 1, the difference being that, in this embodiment, the collection part is a collection bag made of a filter screen, and the collection part also includes... The collection port connects the collection unit to the filter unit.

[0050] Furthermore, the collection port has a structure that mates with the second connecting part, and the collection part is tightly connected to the second connecting part through the collection port.

[0051] In the above solution, the collection section is set as a collection bag made of filter screen. Since the collection bag does not have a fixed shape, it has a larger volume and can collect more lint, reducing the frequency of users cleaning the collection section and improving the user experience.

[0052] Example 3 As another embodiment of the present invention, this embodiment provides an air duct with a lint filter assembly, having the same structure as in Embodiment 1, except that in this embodiment, the sieve plate includes a first sieve plate and a second sieve plate alternately arranged on opposite sides of the first air duct.

[0053] Furthermore, in the above scheme, The first sieve plate is fixed inside the filter unit on the side away from the guide unit, and extends downward at an angle from the side away from the guide unit toward the connection point; The second sieve plate is fixed at the lower edge of the connection point and extends upward parallel to the first sieve plate; the first sieve plate and the second sieve plate do not contact each other and are located above the second sieve plate.

[0054] Furthermore, the projection of the first screen plate onto the cross-section of the filter unit covers the side away from the guide unit, and the projection of the second screen plate onto the cross-section of the filter unit covers the side close to the guide unit. The projections of the first screen plate and the second screen plate onto the cross-section of the filter unit partially overlap.

[0055] In the above scheme, neither the first screen plate nor the second screen plate covers the cross section of the filter unit. By partially overlapping the coverage areas of the first screen plate and the second screen plate, the lint blocked on the first screen plate moves along the inclined direction of the first screen plate and falls onto the second screen plate, and enters the guide unit along the second screen plate. This achieves the separation of lint in the circulating air while discharging and storing the lint in the collection section, thus avoiding the problem of filtering before collecting, which would cause the lint remaining in the air duct during filtration to reduce the filtration effect.

[0056] Example 4 As another embodiment of the present invention, this embodiment provides an air duct with a lint filter assembly, including an air duct body 1 and a lint filter assembly disposed on the air duct body 1. The lint filter assembly includes... Collection section 4, located inside the air duct body 1, is used to collect thread debris; The filter section 2 is located inside the air duct body 1 and communicates with the collection section 4. It is used to filter lint and guide the lint into the collection section 4.

[0057] In this embodiment, both the filter section 2 and the collection section 4 are located inside the air duct body 1. The filter section 2 includes... Filter unit 21 has an internal sieve plate for filtering lint; The guiding unit 22 is connected to the filtering unit 21 and is used to guide the lint blocked by the sieve plate to be discharged. The collecting unit 4 is connected to the guiding unit 22.

[0058] Furthermore, the collection unit 4 is detachably installed inside the air duct body 1.

[0059] In the above solution, the collection unit 4 can be removed from the air duct body 1 for cleaning, preventing the collection unit 4 from becoming filled with lint and thus preventing subsequent lint from entering the collection unit 4 smoothly, thereby improving the lint collection effect. Furthermore, the collection unit 4 is a collection bag made of a filter screen.

[0060] In the above solution, the collection bag made of filter screen does not have a fixed shape, which increases the volume of collection part 4, can collect more lint, reduce the user's cleaning frequency, and improve the user experience.

[0061] The present invention also provides a clothes dryer having an air duct with a lint filter assembly as described in the above-mentioned solution, specifically: Example 5 As another embodiment of the present invention, this embodiment provides a clothes dryer having an air duct with a lint filter assembly as described in Embodiment 1.

[0062] Furthermore, the air duct with lint filter components serves as the front air duct of the dryer.

[0063] In the above scheme, the air inlet of the front air duct is connected to the dryer drum, which can fully separate the lint in the circulating air from the circulating air before heat exchange and heating, so as to avoid the lint adhering to the heat exchange and heating devices and affecting the heat exchange and heating efficiency.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An air duct with a lint filter assembly, comprising an air duct body and a lint filter assembly disposed on the air duct body for filtering lint, characterized in that, The lint filter assembly includes... The collection section is used to collect thread scraps; The filter section, which is connected to the collection section, is located inside the air duct body and is used to filter lint and guide lint into the collection section. The filtration section includes a filtration unit with a sieve plate inside for filtering lint. The sieve plate includes a first sieve plate and a second sieve plate alternately arranged on opposite sides of the first air duct; The collection section is located outside the air duct body, and the air duct body has through holes on its peripheral wall. The filter section and the collection section are connected through the through holes. The first sieve plate is fixed in the filter unit on the side away from the guide unit, and extends downward at an angle from the side away from the guide unit toward the connection point; The second sieve plate is fixed at the lower edge of the connecting point and extends upward parallel to the first sieve plate; The first sieve plate and the second sieve plate do not contact each other; It also includes, A connecting part extends through the through hole and passes through the peripheral wall of the air duct body to connect the filtering part and the collecting part; The projection of the first screen plate onto the cross-section of the filter unit covers the side away from the guide unit, and the projection of the second screen plate onto the cross-section of the filter unit covers the side close to the guide unit. The projections of the first screen plate and the second screen plate onto the cross-section of the filter unit partially overlap.

2. The air duct with a lint filter assembly according to claim 1, characterized in that, The connecting part is from the passage The edge of the hole extends outward to obtain, including, The first connecting part extends from the edge of the through hole into the interior of the air duct body and is detachably connected to the filter part. The second connecting part extends from the edge of the through hole to the outside of the air duct body and is detachably connected to the collecting part.

3. The air duct with a lint filter assembly according to claim 2, characterized in that, The first connecting part extends inward perpendicularly to the duct wall of the duct body, and then extends parallel to the duct wall of the duct body into the interior of the filter part.

4. The air duct with a lint filter assembly according to any one of claims 1-3, characterized in that, The filter unit includes, A guiding unit, connected to the filtering unit, is used to guide the lint blocked by the sieve plate to be discharged. The collecting section is connected to the guiding unit.

5. The air duct with a lint filter assembly according to claim 4, characterized in that, The air duct body has an air inlet and an air outlet. The filter unit and the guide unit are respectively arranged side by side inside the air duct body, forming a first air duct and a second air duct that connect the air inlet and the air outlet. The collection part is connected to the air outlet of the second air duct.

6. The air duct with a lint filter assembly according to claim 1, characterized in that, The collecting unit includes a collecting port, and the collecting unit is connected to the filtering unit through the collecting port; An exhaust unit, at least partially replacing the housing of the collection section, is used to exhaust the airflow entering the collection section.

7. The air duct with a lint filter assembly according to claim 6, characterized in that, The exhaust unit is a filter screen.

8. A clothes dryer comprising an air duct with a lint filter assembly as described in any one of claims 1-7, characterized in that, The air duct with the lint filter assembly is the front air duct of the dryer.

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