Heat exchanger assembly and air conditioner with switchable filter

Abstract

The present invention discloses a heat exchanger assembly and an air conditioner with switchable filters, the heat exchanger assembly comprising a heat exchanger, the heat exchanger forming a windward side and a leeward side in an air duct; two filters, respectively arranged on the windward side and the leeward side of the heat exchanger; the filters having an expanded state and a retracted state; a transmission mechanism, the two filters are connected to the same transmission mechanism, the transmission mechanism drives the two filters to switch between the expanded state and the retracted state respectively, and one of the two filters is kept in the expanded state and the other in the retracted state. The heat exchanger assembly of the present invention ensures that each filter only filters the airflow in a single direction by respectively arranging filters on the windward side and the leeward side of the heat exchanger, and connecting the two filters to the same transmission mechanism, thereby preventing room pollution and being very convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a heat exchanger assembly with a switchable filter and an air conditioner. Background Art

[0002] Air conditioners with reversible air supply need to add filters on both sides of the heat exchanger to filter dust. The traditional approach is to add filters in both the forward and reverse directions. When one side is supplying air, the filter on the air inlet side needs to be retained, and the filter on the other side needs to be removed. If the air conditioner is frequently switched on, frequent removal of the filter for cleaning will make it inconvenient for users to use it. If the filter is not cleaned, it will cause room pollution when the air conditioner is turned on. Summary of the invention

[0003] The invention discloses a heat exchanger assembly with a switchable filter screen and an air conditioner, which solves the problem that the filter screen needs to be disassembled when the direction of the existing air conditioner is switched.

[0004] According to one aspect of the present invention, a heat exchanger assembly is disclosed, comprising: a heat exchanger, wherein the heat exchanger is formed with a windward side and a leeward side in an air duct; two filters, respectively arranged on the windward side and the leeward side of the heat exchanger; the filters have an expanded state and a retracted state; a transmission mechanism, wherein the two filters are connected to the same transmission mechanism, and the transmission mechanism drives the two filters to switch between the expanded state and the retracted state respectively, and one of the two filters is maintained in the expanded state and the other in the retracted state.

[0005] Furthermore, the transmission mechanism includes: a transmission rope, the transmission rope forms a transmission closed loop, and the filter screens are all connected to the transmission rope; a driving wheel, the transmission rope is installed on the driving wheel, and the driving wheel independently drives the transmission rope closed loop to rotate.

[0006] Furthermore, the transmission rope includes two opposite straight segments, the two filters correspond to the straight segments one by one, and the two filters are respectively connected to the corresponding straight segments; the driving wheel drives the transmission rope to rotate, and during the rotation of the transmission rope, the two filters are simultaneously driven to switch between the unfolded state and the retracted state.

[0007] Furthermore, the filter has a movable end and a fixed end, the movable end of the filter is fixedly connected to the transmission rope, and the fixed end of the filter is fixed relative to the heat exchanger; the driving wheel can rotate forward and reverse, and the driving wheel drives the transmission rope to reciprocate by rotating forward and reverse, and during the reciprocating movement, the transmission rope drives the movable end of the filter away from or close to the fixed end of the filter.

[0008] Furthermore, the transmission mechanism further comprises: a guide rail structure, wherein the guide rail structure is sleeved on the outside of the transmission rope, and the filter screen is movably disposed on the guide rail structure.

[0009] Furthermore, the filter screen includes: a plurality of sub-filter screens, all of which are flexibly connected in sequence; a plurality of sliders, each of which corresponds to the sub-filter screens one by one, each of which is pivotally connected to the corresponding sub-filter screens, all of which are slidably matched with the guide rail structure, and the transmission rope is passed through the slider.

[0010] Furthermore, the filter screen has a movable end and a fixed end, the slider located at the movable end is fixedly connected to the transmission rope, and the sub-filter screen located at the fixed end is fixed relative to the heat exchanger.

[0011] Furthermore, the guide rail structure is installed on the heat exchanger, and the guide rail structure is used to support the slider and the sub-filter.

[0012] Furthermore, there are two transmission mechanisms, the two transmission mechanisms are arranged opposite to each other, the filter is located between the two transmission mechanisms, and the filter is connected to the two transmission mechanisms at the same time.

[0013] According to a second aspect of the present invention, an air conditioner is disclosed, which has two different air outlet modes, and the airflows of the two air outlet modes have opposite flow directions in the air duct of the air conditioner, and the air conditioner also includes: a filter, which is movably arranged in the air duct, and the filter has an expanded state and a retracted state; there are two filters, and the two filters are respectively expanded in different air outlet modes so that the two filters can separately filter the airflows in different directions; a transmission mechanism, and the two filters are connected to the same transmission mechanism, and the transmission mechanism drives the two filters to switch between the expanded state and the retracted state respectively, and one of the two filters is kept in the expanded state and the other in the retracted state to correspond to different air outlet modes.

[0014] Furthermore, the transmission mechanism includes: a transmission rope, the transmission rope forms a transmission closed loop, and the filter screens are all connected to the transmission rope; a driving wheel, the transmission rope is installed on the driving wheel, and the driving wheel independently drives the transmission rope closed loop to rotate.

[0015] Furthermore, the transmission rope includes two opposite straight segments, the two filters correspond to the straight segments one by one, and the two filters are respectively connected to the corresponding straight segments; the driving wheel drives the transmission rope to rotate, and during the rotation of the transmission rope, the two filters are simultaneously driven to switch between the unfolded state and the retracted state.

[0016] Furthermore, the filter has a movable end and a fixed end, the movable end of the filter is fixedly connected to the transmission rope, and the fixed end of the filter is fixed relative to the air duct; the driving wheel can rotate forward and reverse, and the driving wheel drives the transmission rope to reciprocate by rotating forward and reverse, and during the reciprocating movement, the transmission rope drives the movable end of the filter away from or close to the fixed end of the filter.

[0017] Furthermore, the transmission mechanism further comprises: a guide rail structure, wherein the guide rail structure is sleeved on the outside of the transmission rope, and the filter screen is movably disposed on the guide rail structure.

[0018] Furthermore, the filter screen includes: a plurality of sub-filter screens, all of which are flexibly connected in sequence; a plurality of sliders, each of which corresponds to the sub-filter screens one by one, each of which is pivotally connected to the corresponding sub-filter screens, all of which are slidably matched with the guide rail structure, and the transmission rope is passed through the slider.

[0019] Furthermore, the filter has a movable end and a fixed end, the slider located at the movable end is fixedly connected to the transmission rope, and the sub-filter located at the fixed end is fixed relative to the air duct.

[0020] Furthermore, the guide rail structure is installed on the air duct, and the guide rail structure is used to support the sliding block and the sub-filter.

[0021] Furthermore, there are two transmission mechanisms, the two transmission mechanisms are arranged opposite to each other, the filter is located between the two transmission mechanisms, and the filter is connected to the two transmission mechanisms at the same time.

[0022] Furthermore, the air conditioner further comprises: a heat exchanger, wherein the heat exchanger is arranged in the air duct, and the two filters are respectively located on the windward side and the leeward side of the heat exchanger.

[0023] Furthermore, the air conditioner also includes a first air outlet and a second air outlet, and the two filters correspond to the first air outlet and the second air outlet respectively; the air conditioner has a first air outlet mode and a second air outlet mode; in the first air outlet mode, the first air outlet outlets air and the second air outlet takes in air; in the second air outlet mode, the first air outlet takes in air and the second air outlet outlets air.

[0024] The heat exchanger assembly of the present invention arranges filters on the windward side and the leeward side of the heat exchanger respectively, and connects the two filters to the same transmission mechanism, so that after the wind direction changes, the two filters can be switched at the same time through the transmission structure. Since one of the two filters is maintained in an expanded state and the other is maintained in a retracted state, after the switching state, one filter is still in an expanded state and the other is still in a retracted state, thereby ensuring that each filter only filters the airflow in a single direction without affecting the normal operation of the heat exchanger, thereby preventing room pollution and being very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a heat exchanger assembly according to an embodiment of the present invention;

[0026] Figure 2 is a three-dimensional diagram of a heat exchanger assembly according to an embodiment of the present invention;

[0027] Figure 3 yes Figure 2 A partial enlarged view of middle A;

[0028] Figure 4 is a schematic structural diagram of a slider at the filter moving end according to an embodiment of the present invention;

[0029] Figure 5 is a schematic structural diagram of a slider at a fixed end of a filter screen according to an embodiment of the present invention;

[0030] Legend: 10, heat exchanger; 20, filter; 21, sub-filter; 22, slider; 30, transmission mechanism; 31, transmission rope; 311, straight segment; 32, driving wheel; 33, guide rail structure; 40, motor. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the embodiments, but is not limited to the contents of the description.

[0032] like Figures 1 to 3As shown, according to the first embodiment of the present invention, a heat exchanger assembly is disclosed, including a heat exchanger 10, two filters 20 and a transmission mechanism 30, the heat exchanger 10 forms a windward side and a leeward side in the air duct; the two filters are respectively arranged on the windward side and the leeward side of the heat exchanger 10; the filter 20 has an unfolded state and a retracted state; the two filters 20 are both connected to the same transmission mechanism 30, and the transmission mechanism 30 drives the two filters 20 to switch between the unfolded state and the retracted state respectively, and one of the two filters 20 is kept in the unfolded state and the other in the retracted state. The heat exchanger assembly of the present invention arranges filters on the windward side and the leeward side of the heat exchanger 10 respectively, and connects the two filters to the same transmission mechanism 30, so that after the wind direction changes, the two filters can be switched at the same time through the transmission structure. Since one of the two filters 20 is maintained in the expanded state and the other is maintained in the retracted state, after the switching state, one filter 20 is still in the expanded state and the other is still in the retracted state, thereby ensuring that each filter only filters the airflow in a single direction without affecting the normal operation of the heat exchanger 10, thereby preventing room pollution, and is very convenient to use.

[0033] In the above embodiment, the transmission mechanism 30 includes a transmission rope 31 and a driving wheel 32. The transmission rope 31 forms a transmission closed loop, and the filter screens 20 are all connected to the transmission rope 31. The transmission rope 31 is installed on the driving wheel 32, and the driving wheel 32 drives the transmission rope 31 to rotate in a closed loop. The heat exchanger assembly of the present invention can drive the transmission rope 31 to rotate by providing the driving wheel 32, thereby driving the filter screen 20 to switch states through the transmission rope 31.

[0034] In the above embodiment, the transmission rope 31 includes two opposite straight segments 311, and the two filters 20 correspond to the straight segments 311 one by one, and the two filters 20 are respectively connected to the corresponding straight segments 311; the driving wheel 32 drives the transmission rope 31 to rotate, and the transmission rope 31 drives the two filters 20 to switch between the unfolded state and the retracted state during the rotation process. The heat exchanger assembly of the present invention connects the two filters 20 to the corresponding straight segments 311 respectively, and since the transmission rope 31 forms a transmission closed loop, the moving directions of the two straight segments 311 are always opposite, so that the two filters 20 can be unfolded while the other is retracted, or one is retracted while the other is opened, which is more convenient to use and saves more space.

[0035] In the above embodiment, the filter screen 20 has a movable end and a fixed end, the movable end of the filter screen 20 is fixedly connected to the transmission rope 31, and the fixed end of the filter screen 20 is fixed relative to the heat exchanger 10; when the motor 40 drives the driving wheel 32 to rotate forward and reverse, the driving wheel 32 drives the transmission rope 31 to move back and forth through the forward and reverse rotation, and the transmission rope 31 drives the movable end of the filter screen 20 away from or close to the fixed end of the filter screen 20 during the reciprocating movement. The heat exchanger assembly of the present invention fixes the movable end of the filter screen 20 on the transmission rope 31, and fixes the position of the fixed end relative to the heat exchanger 10, so that the movable end can be driven to move by the transmission rope 31, thereby realizing the deployment and folding of the filter screen 20. Specifically, the fixed end can be fixed to the heat exchanger 10 by a bracket, and the driving wheel 32 can rotate forward and backward. While the driving wheel 32 rotates forward and backward, it also drives the transmission rope 31 to move back and forth in a sawing manner. During the reciprocating movement, the transmission rope 31 also drives the moving end of the filter 20 away from or close to the fixed end of the filter 20, thereby switching the filter 20 between the expanded state and the retracted state. The structure is simpler and occupies less space.

[0036] In the above embodiment, the transmission mechanism 30 further includes a guide rail structure 33, which is sleeved outside the transmission rope 31, and the filter 20 is movably arranged on the guide rail structure 33. The heat exchanger assembly of the present invention can make the overall structure more solid by arranging the filter 20 on the guide rail structure 33, thereby improving the stability and reliability of the operation of the filter 20.

[0037] In the above embodiment, the filter 20 includes a plurality of sub-filters 21 and a plurality of sliders 22, and all the sub-filters 21 are flexibly connected in sequence; the sliders 22 correspond to the sub-filters 21 one by one, and the sliders 22 are pivotally connected to the corresponding sub-filters 21, and all the sliders 22 are slidably matched with the guide rail structure 33, and the transmission rope 31 is passed through the sliders 22. The heat exchanger assembly of the present invention adopts a plurality of sub-filters 21 and a plurality of sliders 22, so that each sub-filter 21 can be folded up, and when the filter 20 is in the unfolded state, all the sub-filters 21 are in the same plane to form a complete filtering surface; when the filter 20 is in the folded state, all the sub-filters 21 are stacked together and moved to the edge of the heat exchanger 10, so as to prevent the dust on the sub-filters 21 from being blown away by the airflow, thereby preventing the indoor air from being polluted.

[0038] In the above embodiment, the filter 20 has a movable end and a fixed end, the slider 22 at the movable end is fixedly connected to the transmission rope 31, and the sub-filter 21 at the fixed end is fixed relative to the heat exchanger 10. The heat exchanger assembly of the present invention fixes the sub-filter 21 at the fixed end relative to the heat exchanger 10 by fixing the slider 22 at the movable end to the transmission rope 31. When the transmission rope 31 moves forward, the slider 22 at the movable end is driven to move in a direction away from the fixed end, and all the sub-filters 21 are in the same plane to form a complete filtering surface, so that the filter 20 is in an unfolded state; when the transmission rope 31 moves in the reverse direction, the slider 22 at the movable end is driven to move in a direction close to the fixed end, and all the sub-filters 21 are stacked together and moved to the edge of the heat exchanger 10. At this time, the filter 20 is in a retracted state, thereby preventing the dust on the sub-filter 21 from being blown away by the airflow, thereby preventing the indoor air from being polluted.

[0039] In the above embodiment, the guide rail structure 33 is installed on the heat exchanger 10, and the guide rail structure 33 is used to support the slider 22 and the sub-filter 21. The heat exchanger assembly of the present invention is provided with the guide rail structure 33, and a C-shaped groove is provided in the guide rail structure 33, and the slider 22 can be supported in the C-shaped groove, so that the sub-filter 21 is also supported by the guide rail structure 33 through the slider 22, so that the overall structure is more solid and reliable.

[0040] In the above embodiment, there are two transmission mechanisms 30, which are arranged opposite to each other, and the filter screen 20 is located between the two transmission mechanisms 30, and the filter screen 20 is connected to the two transmission mechanisms 30 at the same time. The heat exchanger assembly of the present invention can better support the filter screen 20 by arranging two transmission mechanisms 30, so that the operation of the filter screen 20 is more reliable and stable.

[0041] According to a second aspect of the present invention, an air conditioner is disclosed, which has two different air outlet modes, and the airflows of the two air outlet modes have opposite flow directions in the air duct of the air conditioner. The air conditioner also includes a filter 20 and a transmission mechanism 30. The filter 20 is movably arranged in the air duct, and the filter 20 has an expanded state and a retracted state; there are two filters 20, and the two filters 20 are respectively expanded in different air outlet modes so that the two filters 20 can separately filter the airflows in different directions; the two filters 20 are both connected to the same transmission mechanism 30, and the transmission mechanism 30 drives the two filters 20 to switch between the expanded state and the retracted state respectively, and one of the two filters 20 is kept in the expanded state and the other in the retracted state to correspond to different air outlet modes. The air conditioner of the present invention is provided with two filters 20, and the two filters can be deployed in different air outlet modes, so that the two filters 20 can filter airflows in different directions separately; when the air outlet mode is switched, the transmission mechanism 30 can drive the two filters 20 to switch between the deployed state and the retracted state, so that the two filters 20 always keep one in the deployed state and the other in the retracted state to correspond to different air outlet modes. The air conditioner of the present invention is provided with two filters 20 corresponding to two air outlet modes, so that dust in the filter can be prevented from being blown out after the air outlet mode is changed, polluting the indoor air, and effectively solving the problem of positive and reverse air inlet filtration.

[0042] In this embodiment, the transmission mechanism 30 includes a transmission rope 31 and a driving wheel 32. The transmission rope 31 forms a transmission closed loop, and the filter screens 20 are all connected to the transmission rope 31. The transmission rope 31 is installed on the driving wheel 32, and the driving wheel 32 drives the transmission rope 31 to rotate in a closed loop. The air conditioner of the present invention can drive the transmission rope 31 to rotate by setting the driving wheel 32, so as to drive the filter screen 20 to switch the state through the transmission rope 31.

[0043] In this embodiment, the transmission rope 31 includes two opposite straight segments 311, and the two filters 20 correspond to the straight segments 311 one by one, and the two filters 20 are respectively connected to the corresponding straight segments 311; the driving wheel 32 drives the transmission rope 31 to rotate, and the transmission rope 31 drives the two filters 20 to switch between the unfolded state and the retracted state during the rotation process. The air conditioner of the present invention connects the two filters 20 to the corresponding straight segments 311 respectively, and since the transmission rope 31 forms a transmission closed loop, the moving directions of the two straight segments 311 are always opposite, so that the two filters 20 can be unfolded while the other is retracted, or one is retracted while the other is opened, which is more convenient to use and saves more space.

[0044] In this embodiment, the filter 20 has a movable end and a fixed end, the movable end of the filter 20 is fixedly connected to the transmission rope 31, and the fixed end of the filter 20 is fixed relative to the air duct; the motor 40 drives the driving wheel 32 to rotate forward and reversely, and the driving wheel 32 drives the transmission rope 31 to move back and forth through the forward and reverse rotation, and the transmission rope 31 drives the movable end of the filter 20 away from or close to the fixed end of the filter 20 during the reciprocating movement. The air conditioner of the present invention fixes the movable end of the filter 20 on the transmission rope 31, and fixes the position of the fixed end relative to the air duct, so that the movable end can be driven to move by the transmission rope 31, thereby realizing the unfolding and folding of the filter 20. Specifically, the fixed end can be fixed to the air duct by a bracket, and the driving wheel 32 can rotate forward and backward. While the driving wheel 32 rotates forward and backward, it also drives the transmission rope 31 to move back and forth in a sawing manner. During the reciprocating movement, the transmission rope 31 also drives the moving end of the filter 20 away from or close to the fixed end of the filter 20, thereby switching the filter 20 between the expanded state and the retracted state. The structure is simpler and occupies less space.

[0045] In this embodiment, the transmission mechanism 30 further includes a guide rail structure 33, which is sleeved outside the transmission rope 31, and the filter 20 is movably arranged on the guide rail structure 33. The air conditioner of the present invention can make the overall structure more solid by arranging the filter 20 on the guide rail structure 33, thereby improving the stability and reliability of the operation of the filter 20.

[0046] In this embodiment, the filter 20 includes a plurality of sub-filters 21 and a plurality of sliders 22, and all the sub-filters 21 are flexibly connected in sequence; the sliders 22 correspond to the sub-filters 21 one by one, and the sliders 22 are pivotally connected to the corresponding sub-filters 21, and all the sliders 22 are slidably matched with the guide rail structure 33, and the transmission rope 31 is passed through the sliders 22. The air conditioner of the present invention adopts a plurality of sub-filters 21 and a plurality of sliders 22, so that each sub-filter 21 can be folded up, and when the filter 20 is in the unfolded state, all the sub-filters 21 are in the same plane to form a complete filtering surface; when the filter 20 is in the folded state, all the sub-filters 21 are stacked together and moved to the edge of the air duct, so as to prevent the dust on the sub-filters 21 from being blown away by the airflow, and prevent the indoor air from being polluted.

[0047] like Figure 4 and Figure 5As shown, in this embodiment, the filter 20 has a movable end and a fixed end, the slider 22 at the movable end is fixedly connected to the transmission rope 31, and the sub-filter 21 at the fixed end is fixed relative to the air duct. The air conditioner of the present invention fixes the sub-filter 21 at the fixed end relative to the heat exchanger 10 by fixing the slider 22 at the movable end to the transmission rope 31. When the transmission rope 31 moves forward, it drives the slider 22 at the movable end to move away from the fixed end, and all the sub-filters 21 are in the same plane to form a complete filtering surface, so that the filter 20 is in an unfolded state; when the transmission rope 31 moves in the reverse direction, it drives the slider 22 at the movable end to move toward the fixed end, and all the sub-filters 21 are stacked together and moved to the edge of the heat exchanger 10. At this time, the filter 20 is in a retracted state, thereby preventing the dust on the sub-filter 21 from being blown away by the airflow, thereby preventing the indoor air from being polluted.

[0048] In this embodiment, the guide rail structure 33 is installed on the air duct, and the guide rail structure 33 is used to support the slider 22 and the sub-filter 21. The air conditioner of the present invention is provided with the guide rail structure 33, and a C-shaped groove is provided in the guide rail structure 33, and the slider 22 can be supported in the C-shaped groove, so that the sub-filter 21 is also supported by the guide rail structure 33 through the slider 22, so that the overall structure is more solid and reliable.

[0049] In this embodiment, there are two transmission mechanisms 30, which are arranged opposite to each other, and the filter 20 is located between the two transmission mechanisms 30, and the filter 20 is connected to the two transmission mechanisms 30 at the same time. The air conditioner of the present invention can better support the filter 20 by setting two transmission mechanisms 30, so that the operation of the filter 20 is more reliable and stable.

[0050] In this embodiment, the air conditioner further comprises a heat exchanger 10, which is arranged in the air duct, and two filters 20 are respectively located on the windward side and the leeward side of the heat exchanger 10. The air conditioner of the present invention can always filter the air entering the heat exchanger 10 by arranging the filters 20 on the windward side and the leeward side of the heat exchanger 10, thereby ensuring the cleanliness of the air, the cleanliness of the heat exchanger 10, and the heat exchange efficiency.

[0051] In this embodiment, the air conditioner also includes a first air outlet and a second air outlet, and the two filters 20 correspond to the first air outlet and the second air outlet respectively; the air conditioner has a first air outlet mode and a second air outlet mode; in the first air outlet mode, the first air outlet outlets air and the second air outlet takes in air; in the second air outlet mode, the first air outlet takes in air and the second air outlet outlets air, so that the air in the entire air duct is always kept clean.

[0052] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the embodiments here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A heat exchanger assembly, characterized in that: include: A heat exchanger (10), wherein the heat exchanger (10) is formed with a windward side and a leeward side in an air duct; Two filter screens (20) are respectively arranged on the windward side and the leeward side of the heat exchanger (10); the filter screens (20) have an unfolded state and a retracted state; a transmission mechanism (30), wherein the two filter screens (20) are connected to the same transmission mechanism (30), and the transmission mechanism (30) drives the two filter screens (20) to switch between the deployed state and the retracted state respectively, so that one of the two filter screens (20) is kept in the deployed state and the other in the retracted state; The transmission mechanism (30) comprises: A transmission rope (31), the transmission rope (31) forming a transmission closed loop, and the filter screens (20) are all connected to the transmission rope (31); A driving wheel (32), the transmission rope (31) being mounted on the driving wheel (32), and the driving wheel (32) alone driving the transmission rope (31) to rotate in a closed loop; The transmission mechanism (30) further comprises: A guide rail structure (33), the guide rail structure (33) being sleeved on the outside of the transmission rope (31), and the filter screen (20) being movably arranged on the guide rail structure (33); The filter screen (20) comprises: A plurality of sub-filter screens (21), all of the sub-filter screens (21) being flexibly connected in sequence; A plurality of sliders (22), the sliders (22) corresponding to the sub-filters (21) one by one, the sliders (22) being pivotally connected to the corresponding sub-filters (21), all the sliders (22) being slidably matched with the guide rail structure (33), and the transmission rope (31) being passed through the sliders (22).

2. The heat exchanger assembly according to claim 1, characterized in that: The transmission rope (31) comprises two opposite straight segments (311), the two filter screens (20) correspond to the straight segments (311) one by one, and the two filter screens (20) are respectively connected to the corresponding straight segments (311); The driving wheel (32) drives the transmission rope (31) to rotate, and during the rotation process, the transmission rope (31) simultaneously drives the two filter screens (20) to switch between an unfolded state and a retracted state.

3. The heat exchanger assembly according to claim 2, characterized in that: The filter screen (20) has a movable end and a fixed end, the movable end of the filter screen (20) is fixedly connected to the transmission rope (31), and the fixed end of the filter screen (20) is fixed in position relative to the heat exchanger (10); The driving wheel (32) can rotate forward and reversely, and the driving wheel (32) drives the transmission rope (31) to move back and forth by rotating forward and reverse, and the transmission rope (31) drives the moving end of the filter screen (20) to move away from or closer to the fixed end of the filter screen (20) during the reciprocating movement.

4. The heat exchanger assembly according to claim 1, characterized in that: The filter screen (20) has a movable end and a fixed end, the slider (22) located at the movable end is fixedly connected to the transmission rope (31), and the sub-filter screen (21) located at the fixed end is fixed in position relative to the heat exchanger (10).

5. The heat exchanger assembly according to claim 4, characterized in that: The guide rail structure (33) is installed on the heat exchanger (10), and the guide rail structure (33) is used to support the sliding block (22) and the sub-filter (21).

6. The heat exchanger assembly according to claim 1, characterized in that: There are two transmission mechanisms (30), the two transmission mechanisms (30) are arranged opposite to each other, the filter screen (20) is located between the two transmission mechanisms (30), and the filter screen (20) is connected to the two transmission mechanisms (30) at the same time.

7. An air conditioner, characterized in that: The air conditioner has two different air outlet modes, and the airflows of the two air outlet modes flow in opposite directions in the air duct of the air conditioner. The air conditioner also includes: A filter screen (20), the filter screen (20) being movably arranged in the air duct, the filter screen (20) having an unfolded state and a retracted state; There are two filter screens (20), and the two filter screens (20) are respectively deployed in different air outlet modes, so that the two filter screens (20) can filter airflows in different directions separately; a transmission mechanism (30), wherein the two filters (20) are connected to the same transmission mechanism (30), and the transmission mechanism (30) drives the two filters (20) to switch between the deployed state and the retracted state respectively, and one of the two filters (20) is kept in the deployed state and the other in the retracted state, so as to correspond to different air outlet modes; The transmission mechanism (30) comprises: A transmission rope (31), the transmission rope (31) forming a transmission closed loop, and the filter screens (20) are all connected to the transmission rope (31); A driving wheel (32), the transmission rope (31) being mounted on the driving wheel (32), and the driving wheel (32) alone driving the transmission rope (31) to rotate in a closed loop; The transmission mechanism (30) further comprises: A guide rail structure (33), the guide rail structure (33) being sleeved on the outside of the transmission rope (31), and the filter screen (20) being movably arranged on the guide rail structure (33); The filter screen (20) comprises: A plurality of sub-filter screens (21), all of the sub-filter screens (21) being flexibly connected in sequence; A plurality of sliders (22), the sliders (22) corresponding to the sub-filters (21) one by one, the sliders (22) being pivotally connected to the corresponding sub-filters (21), all the sliders (22) being slidably matched with the guide rail structure (33), and the transmission rope (31) being passed through the sliders (22).

8. The air conditioner according to claim 7, characterized in that: The transmission rope (31) comprises two opposite straight segments (311), the two filter screens (20) correspond to the straight segments (311) one by one, and the two filter screens (20) are respectively connected to the corresponding straight segments (311); The driving wheel (32) drives the transmission rope (31) to rotate, and during the rotation process, the transmission rope (31) simultaneously drives the two filter screens (20) to switch between an unfolded state and a retracted state.

9. The air conditioner according to claim 8, characterized in that: The filter screen (20) has a movable end and a fixed end, the movable end of the filter screen (20) is fixedly connected to the transmission rope (31), and the fixed end of the filter screen (20) is fixed relative to the air duct; The driving wheel (32) can rotate forward and reversely, and the driving wheel (32) drives the transmission rope (31) to move back and forth by rotating forward and reverse, and the transmission rope (31) drives the moving end of the filter screen (20) to move away from or closer to the fixed end of the filter screen (20) during the reciprocating movement.

10. The air conditioner according to claim 7, characterized in that: The filter screen (20) has a movable end and a fixed end, the slider (22) located at the movable end is fixedly connected to the transmission rope (31), and the sub-filter screen (21) located at the fixed end is fixed relative to the air duct.

11. The air conditioner according to claim 7, characterized in that: The guide rail structure (33) is installed on the air duct, and the guide rail structure (33) is used to support the sliding block (22) and the sub-filter (21).

12. The air conditioner according to claim 7, characterized in that: There are two transmission mechanisms (30), the two transmission mechanisms (30) are arranged opposite to each other, the filter screen (20) is located between the two transmission mechanisms (30), and the filter screen (20) is connected to the two transmission mechanisms (30) at the same time.

13. The air conditioner according to claim 7, characterized in that: The air conditioner also includes: A heat exchanger (10), wherein the heat exchanger (10) is arranged in the air duct, and the two filter screens (20) are respectively located on the windward side and the leeward side of the heat exchanger (10).

14. The air conditioner according to claim 7, characterized in that: The air conditioner further comprises a first air outlet and a second air outlet, and the two filters (20) correspond to the first air outlet and the second air outlet respectively; The air conditioner has a first air outlet mode and a second air outlet mode; In the first air outlet mode, the first air outlet outlets air and the second air outlet inlets air; In the second air outlet mode, air is taken in through the first air outlet and air is discharged through the second air outlet.

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