Fresh air inlet air door structure and air conditioner thereof

Abstract

The utility model discloses a fresh air inlet air door structure which is arranged at a fresh air inlet in a matched mode and comprises a driving air door, a driven air door and a linkage structure. The driving air door and the driven air door are both rotationally arranged in the fresh air inlet, and the linkage structure is connected between the driving air door and the driven air door. The linkage structure is used for driving the driven air door to rotate when the driving air door is rotated so that the driving air door and the driven air door can be connected end to end at the fresh air inlet to be sealed or the driving air door and the driven air door are arranged outside the orthographic projection of the fresh air inlet in the axial direction of the fresh air inlet to open the fresh air inlet. Compared with the prior art, when the fresh air inlet is opened, the driving air door and the driven air door are arranged outside the orthographic projection of the fresh air inlet in the axial direction of the fresh air inlet, the driving air door and the driven air door cannot hinder air inlet of the fresh air inlet, and it is guaranteed that air inlet of the fresh air inlet is smooth; the thickness of the driving air door and the driven air door does not need to be reduced, and the driving air door and the driven air door have enough structural strength.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a fresh air inlet damper structure and an air conditioner thereof. Background Art

[0002] At present, the fresh air inlet of the air conditioner cabinet with fresh air function on the market is mostly designed to be cylindrical, and the damper of the fresh air inlet is generally a circular sheet structure rotating around a rotating axis. When the damper is opened, it rotates around the rotating axis to be parallel to the air inlet direction of the fresh air inlet, and the damper is still located in the middle of the fresh air inlet, which has a certain adverse effect on the smoothness of the air inlet of the fresh air inlet. In order to minimize the impact on the smoothness of the air inlet of the fresh air inlet, the thickness of the damper is generally designed to be relatively thin, resulting in poor strength.

[0003] For example, a patent document with publication number CN214841219U discloses a fresh air purification module of an air conditioner, which includes: an air duct, which has a fresh air inlet and a return air inlet, the fresh air inlet is connected to a fresh air duct, the fresh air duct is connected to the outdoor environment, and the return air inlet is connected to the indoor environment; a fan, which is arranged in the air duct and is used to promote air circulation in the air duct; a filter component, which is arranged in the air duct and is used to filter the air flowing through the air duct; and a damper assembly, which is configured to be able to block the fresh air inlet and / or the return air inlet in a movable manner.

[0004] The damper assembly in the above-mentioned fresh air purification module is a circular sheet structure that rotates around a rotating axis. There are problems that the damper affects the smoothness of the fresh air inlet when it is opened, and the thickness of the damper is reduced to reduce the smoothness of the fresh air inlet, resulting in poor strength. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide a fresh air inlet damper structure and an air conditioner thereof, so as to solve the problem in the prior art that the damper assembly is a circular sheet structure rotating around a rotating axis, which affects the smoothness of the air intake of the fresh air inlet when the damper is opened, and the thickness of the damper is reduced in order to reduce the smoothness of the air intake of the fresh air inlet, resulting in its poor strength.

[0006] To achieve the above-mentioned purpose, the first aspect of the utility model adopts the following technical solution: a fresh air inlet damper structure, which is arranged at the fresh air inlet, comprises an active damper, a driven damper and a linkage structure;

[0007] Among them, the active air door and the driven air door are both rotatably arranged in the fresh air inlet, and the linkage structure is connected between the active air door and the driven air door. The linkage structure is used to drive the driven air door to rotate when the active air door is rotated so that the active air door and the driven air door are connected end to end at the fresh air inlet to seal, or the active air door and the driven air door are placed outside the fresh air inlet along the axial direction of the fresh air inlet to open the fresh air inlet.

[0008] The second aspect of the present invention adopts the following technical solution: an air conditioner having a fresh air inlet and also comprising a fresh air inlet damper structure as described in the first aspect of the present invention.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The damper structure of the fresh air inlet is mainly composed of an active damper, a driven damper and a linkage structure. When the active damper is rotated, the driven damper is driven to rotate through the linkage structure so that the active damper and the driven damper are connected end to end at the fresh air inlet to seal, or the active damper and the driven damper are placed outside the positive projection of the fresh air inlet along the axial direction of the fresh air inlet to open the fresh air inlet. When the fresh air inlet is opened, the active damper and the driven damper are placed outside the positive projection of the fresh air inlet along the axial direction of the fresh air inlet. The active damper and the driven damper will not hinder the air intake of the fresh air inlet, ensuring smooth air intake of the fresh air inlet. There is no need to reduce the thickness of the active damper and the driven damper, and the active damper and the driven damper have sufficient structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The structure of an air conditioner in one embodiment of the utility model is shown in FIG. Figure 1 ;

[0012] Figure 2 The structure of an air conditioner in one embodiment of the utility model is shown in FIG. Figure 2 ;

[0013] Figure 3 for Figure 2 Partial cross-sectional view of the fresh air inlet when it is sealed;

[0014] Figure 4 for Figure 2 Partial cross-sectional view of the fresh air inlet when it is open;

[0015] Figure 5 This is a schematic diagram of a state of a fresh air inlet damper structure in one embodiment of the utility model when the fresh air inlet is sealed;

[0016] Figure 6 This is a schematic diagram of a fresh air inlet damper structure in one embodiment of the utility model when the fresh air inlet is opened;

[0017] Figure 7 for Figure 5 Schematic diagram of the structure of the active damper;

[0018] Figure 8 for Figure 5 Schematic diagram of the structure of the driven damper.

[0019] The figure marks in the drawings of the specification include: air-conditioning outlet 1, air-conditioning inlet 2, fresh air inlet 3, fresh air outlet 4, active damper 5, driven damper 6, linkage structure 7, first positioning boss 71, first limiting portion 72, second positioning boss 73, second limiting portion 74, first positioning portion 8, open positioning structure 9, second positioning portion 91, and third positioning portion 92. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below through specific implementation methods:

[0021] Because the damper of the fresh air inlet 3 is generally a circular sheet structure that rotates around a rotation axis. When the damper is opened, it rotates around the rotation axis to be parallel to the air inlet direction of the fresh air inlet 3, and the damper is still located in the middle of the fresh air inlet 3, which has a certain adverse effect on the smoothness of the air inlet of the fresh air inlet 3. In order to minimize the impact on the smoothness of the air inlet of the fresh air inlet 3, the thickness of the damper is generally designed to be relatively thin, resulting in poor strength. In order to solve this problem, Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As shown, an embodiment of the utility model proposes a fresh air inlet damper structure, which is cooperatively arranged at the fresh air inlet 3, including an active damper 5, a driven damper 6 and a linkage structure 7; wherein, the active damper 5 and the driven damper 6 are both rotatably arranged in the fresh air inlet 3, and the linkage structure 7 is connected between the active damper 5 and the driven damper 6. The linkage structure 7 is used to drive the driven damper 6 to rotate when the active damper 5 is rotated so that the active damper 5 and the driven damper 6 are connected end to end at the fresh air inlet 3 for sealing, or the active damper 5 and the driven damper 6 are placed outside the fresh air inlet 3 along the positive projection of the axial direction of the fresh air inlet 3 to open the fresh air inlet 3.

[0022] The damper structure of the fresh air inlet is mainly composed of an active damper 5, a driven damper 6 and a linkage structure 7. When the active damper 5 is rotated, the driven damper 6 is driven to rotate through the linkage structure 7 so that the active damper 5 and the driven damper 6 are connected end to end at the fresh air inlet 3 for sealing, or the active damper 5 and the driven damper 6 overlap outside the positive projection of the fresh air inlet 3 along the axial direction of the fresh air inlet 3 to open the fresh air inlet 3. When the fresh air inlet 3 is opened, the active damper 5 and the driven damper 6 are placed outside the positive projection of the fresh air inlet 3 along the axial direction of the fresh air inlet 3. The active damper 5 and the driven damper 6 will not cause obstruction to the air intake of the fresh air inlet 3, ensuring that the air intake of the fresh air inlet 3 is smooth. There is no need to reduce the thickness of the active damper 5 and the driven damper 6, and the active damper 5 and the driven damper 6 have sufficient structural strength.

[0023] In order to better understand the present solution, the active damper 5, the driven damper 6 and the linkage structure 7 will be structurally optimized as follows.

[0024] First, the active damper 5 and the driven damper 6, such as Figure 5-Figure 6 As shown, according to another embodiment of the utility model, a fresh air inlet damper structure, wherein the active damper 5 and the driven damper 6 both include a damper body and two connecting ears formed at both ends of the damper body and extending along the same side of the damper body, the damper body of the active damper 5 is slidably attached to the damper body of the driven damper 6 and the two connecting ears of the driven damper 6 are slidably attached to the outside of the two connecting ears of the active damper 5 in a one-to-one manner, and the connecting ears on the same side of the active damper 5 and the driven damper 6 are connected by rotation; the linkage structure 7 is arranged between the connecting ears on the same side of the active damper 5 and the driven damper 6.

[0025] The active damper 5 and the driven damper 6 are structurally designed to have the same rotation center, and the active damper 5 and the driven damper 6 can work closely together to well seal the fresh air inlet 3; further, the damper bodies are all arc-shaped blocks, and because the air conditioner with the fresh air inlet 3 is cylindrical, and the fresh air inlet 3 is circular, the shape design of the active damper 5 and the driven damper 6 can be well matched to adapt to the fresh air inlet 3 of the air conditioner to achieve a good seal.

[0026] In this embodiment:

[0027] The two connecting ears are arranged up and down on the damper body. Specifically, the active damper 5 is driven to rotate by a stepping motor connected to the connecting ear on the top of the active damper 5. When the active damper 5 rotates, the driven damper 6 is driven to rotate through the linkage structure 7 so that the active damper 5 and the driven damper 6 are connected end to end at the fresh air inlet 3 for sealing, or the active damper 5 and the driven damper 6 are placed outside the positive projection of the fresh air inlet 3 along the axial direction of the fresh air inlet 3 to open the fresh air inlet 3.

[0028] Then there is linkage structure 7, such as Figure 3-Figure 8 As shown, according to another embodiment of the utility model, the fresh air inlet damper structure, wherein the linkage structure 7 includes a closed linkage structure and an open linkage structure;

[0029] Among them, the closed linkage structure is arranged between the active damper 5 and the driven damper 6 and is used to drive the driven damper 6 to rotate when the active damper 5 is rotated so that the active damper 5 and the driven damper 6 are connected end to end at the fresh air inlet 3 for sealing; the open linkage structure is used to drive the driven damper 6 to rotate when the active damper 5 is rotated so that the active damper 5 and the driven damper 6 are placed outside the positive projection of the fresh air inlet 3 along the axial direction of the fresh air inlet 3 to open the fresh air inlet 3.

[0030] Specifically, the closed linkage structure includes a first positioning boss 71 and a first limiting portion 72; wherein, the first positioning boss 71 is arranged on a side of the active damper 5 close to the driven damper 6 when the fresh air inlet 3 is sealed; the first limiting portion 72 is arranged on a side of the driven damper 6 close to the active damper 5 when the fresh air inlet 3 is sealed and the first limiting portion 72 is located on the rotation path of the first positioning boss 71.

[0031] In this embodiment:

[0032] The first positioning boss 71 is arranged on the connecting ear at the top of the active damper 5, and the first limiting portion 72 is arranged on the connecting ear at the top of the driven damper 6; when the stepper motor runs to drive the active damper 5 to rotate, the active damper 5 rotates in the direction of blocking the fresh air inlet 3 until the first positioning boss 71 abuts against the first limiting portion 72, and the active damper 5 continues to rotate to drive the driven damper 6 to rotate until the active damper 5 and the driven damper 6 are connected end to end to be in a fully expanded state, and the active damper 5 and the driven damper 6 cooperate to seal the fresh air inlet 3 well.

[0033] The opening linkage structure 7 includes a second positioning boss 73 and a second limiting portion 74, wherein the second positioning boss 73 is arranged on a side where the active damper 5 is away from the driven damper 6 when the fresh air inlet 3 is sealed; the second limiting portion 74 is arranged on a side where the driven damper 6 is close to the active damper 5 when the fresh air inlet 3 is sealed, and the second limiting portion 74 is located on the rotation path of the second positioning boss 73.

[0034] In this embodiment:

[0035] The second positioning boss 73 is also arranged on the connecting ear at the top of the active damper 5, and the second limiting portion 74 is also arranged on the connecting ear at the top of the driven damper 6; when the stepper motor is running to drive the active damper 5 to rotate in the opposite direction, the active damper 5 rotates in the direction of opening the fresh air inlet 3 until the second positioning boss 73 abuts against the second limiting portion 74, and the active damper 5 continues to rotate to drive the driven damper 6 to rotate until the active damper 5 and the driven damper 6 are both rotated to the inner side of the side wall forming the fresh air inlet 3, and the active damper 5 and the driven damper 6 are placed outside the positive projection of the fresh air inlet 3 along the axial direction of the fresh air inlet 3. At this time, the fresh air inlet 3 is fully opened, and the active damper 5 and the driven damper 6 will not affect the air intake of the fresh air inlet 3. Among them, the second limiting portion 74 is specifically a limiting groove opened on the side of the connecting ear at the top of the driven damper 6 close to the second positioning boss 73. When the second positioning boss 73 rotates into the limiting groove and abuts against each other, the active damper 5 drives the driven damper 6 to rotate.

[0036] In order to make the active damper 5 and the driven damper 6 have a precise stop position during the opening and closing process, ensure that the active damper 5 and the driven damper 6 cooperate to seal the fresh air inlet 3 well, and when the fresh air inlet 3 is opened, the active damper 5 and the driven damper 6 have a small occupied area on the inner side of the side wall forming the fresh air inlet 3; Figure 3-Figure 8 As shown, according to another embodiment of the utility model, a fresh air inlet damper structure is described, wherein a first positioning portion 8 is formed on the inner side of the side wall forming the fresh air inlet 3, and the first positioning portion 8 is located on the rotation path of the active damper 5 and is used to cooperate with the active damper 5 to limit the active damper 5 from continuing to rotate after the fresh air inlet 3 is sealed.

[0037] Here, when the stepper motor is running to drive the active damper 5 to rotate, the active damper 5 rotates in the direction of blocking the fresh air inlet 3 until the first positioning boss 71 abuts against the first limiting portion 72, and the active damper 5 continues to rotate to drive the driven damper 6 to rotate until the side of the active damper 5 abuts against the first positioning portion 8, and the stepper motor stops running. At this time, the active damper 5 and the driven damper 6 are connected end to end to fully unfold, and the active damper 5 and the driven damper 6 cooperate to seal the fresh air inlet 3 well (such as Figure 3 and Figure 5 ).

[0038] Furthermore, an opening positioning structure 9 is provided between the driven damper 6 and the inner side of the side wall forming the fresh air inlet 3, and the opening positioning structure 9 is used to limit the driven damper 6 from continuing to rotate after the fresh air inlet 3 is opened. Specifically, the opening positioning structure 9 includes a second positioning portion 91 and a third positioning portion 92, wherein the second positioning portion 91 is arranged on a side of the driven damper 6 close to the active damper 5 when the fresh air inlet 3 is sealed; the third positioning portion 92 is arranged on a side of the inner side of the side wall away from the active damper 5 when the fresh air inlet 3 is sealed, and the third positioning portion 92 is located on the rotation path of the second positioning portion 91.

[0039] In the present embodiment, the second positioning portion 91 is arranged on the side of the outer side surface of the connecting ear at the top of the driven air door 6 away from the third positioning portion 92; when the stepper motor runs to drive the active air door 5 to rotate in the opposite direction, the active air door 5 rotates in the direction of opening the fresh air inlet 3, and when the second positioning boss 73 abuts against the second limiting portion 74, the active air door 5 continues to rotate to drive the driven air door 6 to rotate until the second positioning portion 91 abuts against the third positioning portion 92, and the stepper motor stops running. At this time, the active air door 5 and the driven air door 6 are overlapped and stored on the inner side of the side wall forming the fresh air inlet 3, occupying a small area and the active air door 5 and the driven air door 6 are located outside the positive projection of the fresh air inlet 3 along the axial direction of the fresh air inlet 3, and will not affect the air intake of the fresh air inlet 3 (such as Figure 4 and Figure 6 ).

[0040] Guide rails may be formed between the inner side of the side wall forming the fresh air inlet 3 and the active damper 5 and the driven damper 6 to ensure stable rotation of the active damper 5 and the driven damper 6 .

[0041] like Figure 1 and Figure 2 As shown, according to another embodiment of the utility model, the air conditioner is provided with an air-conditioning outlet 1 on the front side, an air-conditioning inlet 2 at the middle position of the rear side, a fresh air inlet 3 and a fresh air outlet 4 at the lower rear side, and also includes a fresh air inlet damper structure as described in any of the above embodiments.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fresh air inlet damper structure, arranged at the fresh air inlet, characterized in that: It includes an active damper, a driven damper and a linkage structure; Among them, the active air door and the driven air door are both rotatably arranged in the fresh air inlet, and the linkage structure is connected between the active air door and the driven air door. The linkage structure is used to drive the driven air door to rotate when the active air door is rotated so that the active air door and the driven air door are connected end to end at the fresh air inlet to seal, or the active air door and the driven air door are placed outside the fresh air inlet along the axial direction of the fresh air inlet to open the fresh air inlet.

2. A fresh air inlet damper structure according to claim 1, characterized in that: The linkage structure includes: A closed linkage structure, which is arranged between the active damper and the driven damper and is used to drive the driven damper to rotate when the active damper is rotated so that the active damper and the driven damper are connected end to end at the fresh air inlet for sealing; The opening linkage structure is used to drive the driven damper to rotate when the active damper is rotated so that the active damper and the driven damper overlap the positive projection of the fresh air inlet along the axial direction of the fresh air inlet to open the fresh air inlet.

3. A fresh air inlet damper structure according to claim 2, characterized in that: The closed linkage structure comprises: A first positioning boss, wherein the first positioning boss is arranged on a side of the active damper close to the driven damper when sealing the fresh air inlet; The first limiting portion is arranged on a side of the driven air door close to the active air door when sealing the fresh air inlet, and the first limiting portion is located on the rotation path of the first positioning boss.

4. A fresh air inlet damper structure according to claim 2, characterized in that: The open linkage structure includes: A second positioning boss, wherein the second positioning boss is arranged on a side of the active damper away from the driven damper when sealing the fresh air inlet; The second limiting portion is arranged on a side of the driven air door close to the active air door when sealing the fresh air inlet, and the second limiting portion is located on the rotation path of the second positioning boss.

5. A fresh air inlet damper structure according to claim 4, characterized in that: A first positioning portion is formed on the inner side of the side wall forming the fresh air inlet. The first positioning portion is located on the rotation path of the active air door and is used to cooperate with the active air door to limit the active air door from continuing to rotate after the fresh air inlet is sealed.

6. A fresh air inlet damper structure according to claim 1 or 2, characterized in that: An opening positioning structure is provided between the driven damper and the inner side of the side wall forming the fresh air inlet, and the opening positioning structure is used to limit the driven damper from further rotating after the fresh air inlet is opened.

7. A fresh air inlet damper structure according to claim 6, characterized in that: The opening positioning structure comprises: A second positioning portion, the second positioning portion is arranged on a side of the driven damper close to the active damper when sealing the fresh air inlet; The third positioning portion is arranged on a side of the inner side of the side wall away from the active air door when the fresh air inlet is sealed, and the third positioning portion is located on the rotation path of the second positioning portion.

8. The fresh air inlet damper structure according to claim 1, characterized in that: The active damper and the driven damper both include a damper body and two connecting ears formed at both ends of the damper body and extending along the same side of the damper body. The damper body of the active damper is slidably attached to the damper body of the driven damper and the two connecting ears of the driven damper are slidably attached to the outside of the two connecting ears of the active damper in a one-to-one manner. The connecting ears on the same side of the active damper and the driven damper are connected by rotation; and a linkage structure is arranged between the connecting ears on the same side of the active damper and the driven damper.

9. A fresh air inlet damper structure according to claim 8, characterized in that: The damper bodies are all arc-shaped blocks.

10. An air conditioner having a fresh air inlet, characterized in that: It also includes a fresh air inlet damper structure as described in any one of claims 1-9.

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