Return air structure and air conditioner

Abstract

The application relates to the air conditioner technical field, and discloses a return air structure and an air conditioner. The return air structure provided by the application comprises a shell, a shielding piece, a filtering piece and a driving device, the shell is provided with a return air opening, the shielding piece is in sliding connection with the driving device, the filtering piece is in rotary connection with the driving device, and the driving device is arranged on the shell; when the return air opening is closed, the shielding piece is located in the return air opening, and the filtering piece is located on one side of the shell; when the return air opening is opened, the filtering piece is located in the return air opening, and the shielding piece is located on one side of the shell. The return air structure is provided with the shielding piece, the filtering piece and the driving device, so that when the return air opening is opened, the driving device can push the shielding piece out of the return air opening and push the filtering piece into the return air opening, the filtering piece is used for filtering the air entering the return air opening, and the problem that impurities easily enter the air conditioner from the return air opening of a constant-opening type is solved.

Description

Technical Field

[0001] This application belongs to the field of air conditioner technology, and particularly relates to return air structure and air conditioner. Background Technology

[0002] Air conditioners typically require a return air intake to allow indoor air to enter the unit. In related technologies, a wall-mounted air conditioner includes an outer casing with a return air intake at the top. However, using a normally open return air intake leaves the unit exposed to the air for extended periods, making it easier for impurities to enter and affect its normal operation.

[0003] Therefore, improvements to existing technologies are necessary.

[0004] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0005] This application provides a return air structure and an air conditioner to solve the problem that impurities can easily enter the air conditioner from the normally open return air.

[0006] In a first aspect, embodiments of this application provide a return air structure, including a housing, a shield, a filter, and a drive device. The housing has a return air inlet, the shield is slidably connected to the drive device, the filter is rotatably connected to the drive device, and the drive device is disposed on the housing. When the return air vent is closed, the shield is located inside the return air vent, and the filter is located on one side of the housing; when the return air vent is open, the filter is located inside the return air vent, and the shield is located on one side of the housing.

[0007] In one possible implementation, the driving device includes a power component and a first driving mechanism. The first driving mechanism includes a first driving rod, a first limiting member, and a second limiting member. The first limiting member is disposed on the first driving rod, and the second limiting member is disposed on the blocking member. The first limiting member and the second limiting member are slidably connected. The power component is used to drive the first driving rod to move.

[0008] In one possible implementation, the first limiting member has a sliding hole, and the second limiting member has a sliding block, the sliding block being slidably connected to the sliding hole; and / or, the second limiting member has a limiting hole, and the second limiting member has a sliding block, the sliding block being slidably connected to the sliding hole.

[0009] In one possible implementation, the drive device further includes a second drive mechanism, which includes a second drive rod and a connector. One end of the connector is rotatably connected to the second drive rod, and the other end of the connector is rotatably connected to the filter element. The power assembly is used to drive the second drive rod to move.

[0010] In one possible implementation, the first drive rod has a sliding cavity and a sliding hole, the sliding hole communicates with the sliding cavity, the second drive rod is disposed in the sliding cavity, the second drive rod is slidably engaged with the first drive rod, one end of the connector passes through the sliding hole and is rotatably connected to the second drive rod, and the power assembly is connected to the second drive rod.

[0011] In one possible implementation, the housing is provided with a stop block for guiding the filter element; After the shielding member moves to one side of the housing, the stop block abuts against the filter element to guide the filter element to move into the return air vent.

[0012] In one possible implementation, a guide plate is provided on the housing, the guide plate is fixedly connected to the side wall of the return air vent, and the guide plate is provided with a first guide surface for guiding the shield to one side of the housing.

[0013] In one possible implementation, the shielding member is provided with a second guide surface that mates with the first guide surface.

[0014] In one possible implementation, the guide plate is provided with a clearance groove, and after the blocking member moves to one side of the housing, the first limiting member is placed into the clearance groove.

[0015] Secondly, embodiments of this application also provide an air conditioner, the air conditioner including the return air structure as described in any of the preceding claims.

[0016] Compared with the prior art, this application has the following beneficial effects: The return air structure provided in this application embodiment, by setting a shield, can block the return air vent when it is closed, thereby reducing the amount of impurities entering the air conditioner from the return air vent when it is closed; by setting a filter and a driving device, when the return air vent is open, the driving device can push the shield out of the return air vent and push the filter into the return air vent, using the filter to filter the air entering the return air vent, thereby reducing the amount of impurities entering the air conditioner from the return air vent when it is open, solving the problem that impurities can easily enter the air conditioner from the normally open return air. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0019] Figure 1 This is a schematic diagram of the first type of return air structure provided in the embodiments of this application.

[0020] Figure 2 This is a schematic diagram of a second type of return air structure provided in an embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the casing structure provided in an embodiment of this application.

[0022] Figure 4 This is a schematic diagram of the structure of the shielding component, the filtering component, and the driving device provided in the embodiments of this application.

[0023] Figure 5 This is a cross-sectional view of the return air structure provided in the embodiments of this application when the return air inlet is closed.

[0024] Figure 6 This is a cross-sectional view of the return air structure provided in the embodiments of this application when the return air inlet is open.

[0025] Figure 7 A cross-sectional view of the filter provided in an embodiment of this application.

[0026] In the diagram: 1. Housing; 11. Return air vent; 12. Guide plate; 121. First guide surface; 122. Clearance groove; 13. Stop block; 131. Stop part; 132. Support part; 14. Guide component; 2. Shielding component; 21. Shielding part; 22. Side shielding part; 23. Second guide surface; 3. Filter component; 31. Filter frame; 32. Filter screen; 4. Drive device; 41. First drive mechanism; 411. First drive rod; 412. First limiting component; 413. Second limiting component; 414. Sliding hole; 415. Sliding block; 416. Sliding cavity; 417. Sliding hole; 42. Second drive mechanism; 421. Second drive rod; 422. Connector; 43. Power assembly; 431. Power component; 432. Power rod. Detailed Implementation

[0027] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0028] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0030] This application provides a return air structure and an air conditioner to solve the problem that impurities can easily enter the air conditioner from the normally open return air. The following description will be provided in conjunction with the accompanying drawings.

[0031] Please see Figures 1-7 This application provides a return air structure, including a housing 1, a shield 2, a filter 3, and a drive device 4. The housing 1 has a return air vent 11. The shield 2 is slidably connected to the drive device 4, and the filter 3 is rotatably connected to the drive device 4. The drive device 4 is disposed on the housing 1. When the return air vent 11 is closed, the shield 2 is located inside the return air vent 11, and the filter 3 is located on one side of the housing 1. When the return air vent 11 is open, the filter 3 is located inside the return air vent 11, and the shield 2 is located on one side of the housing 1.

[0032] By setting up the shield 2, when the return air vent 11 is closed, the shield 2 can block the return air vent 11, thereby reducing the amount of impurities entering the air conditioner from the return air vent 11 when it is closed. By setting up the filter 3 and the drive device 4, when the return air vent 11 is open, the drive device 4 can push the shield 2 out of the return air vent 11 and push the filter 3 into the return air vent 11. The filter 3 filters the air entering the return air vent 11, thereby reducing the amount of impurities entering the air conditioner from the return air vent 11 when it is open, thus solving the problem that impurities can easily enter the air conditioner from the normally open return air.

[0033] Please see Figure 4 and Figure 7In this embodiment, the shielding member 2 includes a shielding portion 21 and two side shielding portions 22, which are respectively disposed at both ends of the shielding portion 21 along its length. A second guide surface 23 is provided on each side shielding portion 22, connecting the shielding portion 21 and the side shielding portion 22 away from the shielding portion 21. The filter member 3 includes a filter frame 31 and a filter screen 32, which is detachably connected to the filter frame 31 to filter the air passing through the filter frame 31. When the return air vent 11 is closed, the shielding member 2 abuts against the filter member 3.

[0034] Please see Figure 4 and Figure 5 The driving device 4 is used to drive the movement of the shielding component 2 and the filter component 3. The driving mechanism is located on one side of the housing 1. The driving device 4 includes a first driving mechanism 41, a second driving mechanism 42, and a power assembly 43. In this embodiment, the number of first driving mechanisms 41 is set to two sets, and the two sets of first driving mechanisms 41 are symmetrically arranged. The first driving mechanism 41 includes a first driving rod 411, a first limiting member 412, and a second limiting member 413. The first driving rod 411 is elongated and slides with the external bracket so that the first driving rod 411 can slide along a first direction. One end of the first limiting member 412 is fixedly connected to the first driving rod 411, and the other end extends toward the return air vent 11; one end of the second limiting member 413 is fixedly connected to the shielding component 2, and the other end extends toward the first driving rod 411. The first limiting member 412 and the second limiting member 413 are slidably connected.

[0035] Please see Figure 4 and Figure 5 Specifically, in this embodiment, the first limiting member 412 has a sliding hole 414, and the second limiting member 413 is fixedly connected to a sliding block 415. The sliding block 415 is placed into the sliding hole 414 and slidably connected to the sliding hole 414, so that the second limiting member 413 can slide relative to the first limiting member 412. In some embodiments of this application, the second limiting member 413 has a sliding hole 414, and the first limiting member 412 is fixedly connected to a sliding block 415. The sliding block 415 is placed into the sliding hole 414 and slidably connected to the sliding hole 414. In some embodiments of this application, the first limiting member 412 is provided with a sliding block 415 and a sliding hole 414. The first limiting member 412 is provided with a corresponding sliding block 415 and a sliding hole 414. The sliding block 415 and the sliding hole 414 correspond one-to-one. The sliding block 415 is placed into the corresponding sliding hole 414 and is slidably connected with the corresponding sliding hole 414.

[0036] Please see Figures 3-5Furthermore, a guide plate 12 is integrally formed on the housing 1. The guide plate 12 is fixedly connected to the side wall of the return air vent 11. One end of the guide plate 12 extends towards one side of the housing 1. A first guide surface 121 is provided on the side of the guide plate 12 near the shield 2. The first guide surface 121 is used to guide the shield 2 to the other side of the housing 1. When the shield 2 covers the return air vent 11, the first guide surface 121 and the second guide surface 23 are in contact. A clearance groove 122 is provided on the guide plate 12. In this embodiment, the number of clearance grooves 122 is set to two. The clearance grooves 122 are correspondingly provided with the first limiting member 412. After the shield 2 moves to one side of the housing 1, the first limiting member 412 is placed into the corresponding clearance groove 122 to facilitate the movement of the shield 2 to one side of the housing 1.

[0037] Please see Figure 5 and Figure 6 During the opening of the return air vent 11, the first drive rod 411 slides along the first direction, causing the shield 2 to slide relative to the guide plate 12. Under the guidance of the second guide surface 23, the second limiting member 413 slides relative to the first limiting member 412, causing the shield 2 to slide along the first direction and also slide along the second direction to one side of the housing 1, thereby moving the shield 2 out of the return air vent 11 and realizing the opening of the return air vent 11.

[0038] Please see Figure 4 and Figure 5 The second drive mechanism 42 includes a second drive rod 421 and a connecting member 422. The second drive rod 421 is elongated and slidably connected to the first drive rod 411. Specifically, the first drive rod 411 has a sliding cavity 416 and a sliding hole 417, which communicates with the sliding cavity 416. One end of the second drive rod 421 extends into the sliding cavity 416, and the second drive rod 421 slides into the sliding cavity 416. One end of the connecting member 422 passes through the sliding hole 417 and is rotatably connected to the second drive rod 421 via a pin, while the other end is rotatably connected to the filter screen 32 via a pin. In this embodiment, the number of second drive mechanisms 42 is set to two sets, with each second drive mechanism 42 corresponding to one of the first drive mechanisms 41.

[0039] Please see Figure 4 The power assembly 43 is connected to the second drive rod 421. The power assembly 43 includes a power element 431 and a power rod 432. The power rod 432 is fixedly connected to the second drive rods 421 of the two sets of second drive mechanisms 42. The power element 431 is fixedly connected to the power rod 432. In this embodiment, the power element 431 is an electric push rod. The piston rod of the electric push rod is fixedly connected to the power rod 432. The cylinder of the electric push rod is fixedly connected to the external bracket.

[0040] Please see Figure 3Furthermore, the housing 1 is provided with a stop block 13 and a guide member 14 for guiding the filter element 3. In this embodiment, the stop block 13 includes a stop portion 131 and a support portion 132. The support portion 132 is integrally formed on one side of the stop portion 131. The stop portion 131 extends along a second direction. Both the support portion 132 and the stop portion 131 are fixedly connected to the side of the guide plate 12 opposite to the second direction. By extending the support portion 132 along the second direction, the filter element 3 can move along the second direction when it abuts against the stop block 13. The guide member 14 is fixedly connected to the housing 1 and to the guide plate 12. The guide plate facilitates guiding the filter element 3 to move along the first direction.

[0041] Please see Figure 5 and Figure 6 When the piston rod of the electric push rod extends, it pushes the power rod 432 to translate, thereby pushing the second drive rod 421 to translate along the first direction. Since the shield 2 abuts against the filter 3, the second drive rod 421 can push the first drive rod 411 to translate along the first direction. The translation of the first drive rod 411 along the first direction causes the shield 2 to move out of the return air vent 11. After the shield 2 moves out of the return air vent 11, the piston rod of the electric push rod continues to extend, thereby pushing the second drive rod 421 to slide relative to the first drive rod 411. During the sliding process of the second drive rod 421 relative to the first drive rod 411, the filter 3 abuts against the stop block 13 and moves along the second direction, causing the filter 3 to move into the return air vent 11. The filter 3 filters the air entering the return air vent 11, thereby reducing the amount of impurities entering the air conditioner from the return air vent 11 when it is open, solving the problem that impurities easily enter the air conditioner from the normally open return air.

[0042] Please see Figure 5 and Figure 6 During the closing process of the return air vent 11, the piston rod of the electric push rod retracts, and the second drive rod 421 slides in the opposite direction of the first drive rod 411, causing the filter element 3 to exit the return air vent 11. When the filter element 3 is completely exited from the return air vent 11, the connector 422 abuts against the wall of the sliding hole 417, causing the second drive rod 421 to drive the first drive rod 411 to slide in the opposite direction of the first direction, so that the shield 2 covers the return air vent 11, thereby reducing the amount of impurities entering the air conditioner from the return air vent 11 when the return air vent 11 is closed.

[0043] It should be noted that in this embodiment, the first direction is the length direction of the housing 1, and the second direction is the thickness direction of the housing 1.

[0044] This application also provides an air conditioner that includes the return air structure described above. Since this air conditioner has the aforementioned return air structure, it possesses at least some or all of the beneficial effects of the aforementioned return air structure, which will not be elaborated upon here.

[0045] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0046] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A return air structure, characterized by, It includes a housing (1), a shield (2), a filter (3) and a drive device (4). The housing (1) has a return air vent (11). The shield (2) is slidably connected to the drive device (4). The filter (3) is rotatably connected to the drive device (4). The drive device (4) is disposed on the housing (1). When the return air vent (11) is closed, the shield (2) is located inside the return air vent (11), and the filter (3) is located on one side of the housing (1); when the return air vent (11) is open, the filter (3) is located inside the return air vent (11), and the shield (2) is located on one side of the housing (1).

2. The return air structure of claim 1, wherein, The driving device (4) includes a power assembly (43) and a first driving mechanism (41). The first driving mechanism (41) includes a first driving rod (411), a first limiting member (412), and a second limiting member (413). The first limiting member (412) is disposed on the first driving rod (411), and the second limiting member (413) is disposed on the blocking member (2). The first limiting member (412) and the second limiting member (413) are slidably connected. The power assembly (43) is used to drive the first driving rod (411) to move.

3. The return air structure of claim 2, wherein, The first limiting member (412) is provided with a sliding hole (414), and the second limiting member (413) is provided with a sliding block (415), the sliding block (415) being slidably connected to the sliding hole (414); and / or, the second limiting member (413) is provided with a limiting hole, the second limiting member (413) is provided with a sliding block (415), the sliding block (415) being slidably connected to the sliding hole (414).

4. The return air structure of claim 2, wherein, The drive device (4) further includes a second drive mechanism (42), which includes a second drive rod (421) and a connector (422). One end of the connector (422) is rotatably connected to the second drive rod (421), and the other end of the connector (422) is rotatably connected to the filter element (3). The power component (43) is used to drive the second drive rod (421) to move.

5. The return air structure of claim 4, wherein, The first drive rod (411) has a sliding cavity (416) and a sliding hole (417) connected to the sliding cavity (416). The second drive rod (421) is disposed in the sliding cavity (416) and is slidably engaged with the first drive rod (411). One end of the connector (422) passes through the sliding hole (417) and is rotatably connected to the second drive rod (421). The power assembly (43) is connected to the second drive rod (421).

6. The return air structure of claim 5, wherein, The housing (1) is provided with a stop block (13) for guiding the filter element (3); After the shield (2) moves to one side of the housing (1), the stop block (13) abuts against the filter (3) to guide the filter (3) to move into the return air vent (11).

7. The return air structure of claim 2, wherein, A guide plate (12) is provided on the housing (1). The guide plate (12) is fixedly connected to the side wall of the return air vent (11). The guide plate (12) is provided with a first guide surface (121) for guiding the shield (2) to one side of the housing (1).

8. The return air structure of claim 7, wherein, The shielding member (2) is provided with a second guide surface (23) that cooperates with the first guide surface (121).

9. The return air structure of claim 7, wherein, The guide plate (12) is provided with a clearance groove (122). After the shield (2) moves to one side of the housing (1), the first limiting member (412) is placed in the clearance groove (122).

10. An air conditioner characterized by comprising: The air conditioner includes the return air structure as described in any one of claims 1-9.

Images