Fresh air inlet sealing structure and air conditioner

Abstract

A sealing structure for a fresh air inlet relates to the technical field of air conditioners and comprises a mounting cover, an air inlet pipe, an air outlet pipe and an air outlet pipe, the air door assembly comprises a driving part fixedly installed in the installation cover, an air door plate rotationally installed in the air inlet pipe and a sealing ring arranged on the air door plate in the circumferential direction of the side wall of the air door plate, the air door plate is arranged close to the end, located in the installation cover, of the air inlet pipe, and the power output end of the driving part is connected with the air door plate; the sealing ring is used for rotationally filling a space between the air door plate and the inner wall of the air inlet pipe; the utility model further provides an air conditioner comprising the fresh air inlet sealing structure, and the driving piece drives the air door plate to rotate, so that the fresh air inlet, the air inlet pipe and the external environment are communicated or closed.

Description

Technical Field

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

[0002] The fresh air system is an independent air treatment system consisting of an air supply system and an exhaust system. It is divided into two types: a ducted fresh air system and a ductless fresh air system. The ducted fresh air system consists of a fresh air fan and duct accessories. The fresh air fan purifies the outdoor air and introduces it into the room, and exhausts the indoor air through the duct; the ductless fresh air system consists of a fresh air fan, which also purifies the outdoor air and introduces it into the room.

[0003] In a Chinese invention with publication number CN117553350A, an air intake device, an air conditioner and a control method thereof are disclosed, wherein the air intake device includes a fresh air duct, the fresh air conditioner of the fresh air duct is connected to the outdoors, and the fresh air outlet of the fresh air duct is connected to the indoors; the fresh air duct of the air conditioner cabinet is directly and completely connected to the outdoor environment, and there is no closing mechanism in the fresh air duct, so that after the fresh air duct has been working for a long time, dust and other impurities will accumulate inside the fresh air duct, causing the fresh air duct to be blocked, affecting the normal use of the fresh air function of the air conditioner. Utility Model Content

[0004] In view of the deficiencies existing in the prior art, the utility model provides a fresh air inlet sealing structure and an air conditioner, which solves the problem in the prior art that the fresh air duct cannot be sealed and is easily blocked by dust accumulation.

[0005] A fresh air inlet sealing structure, comprising:

[0006] A mounting cover, the closed end of which is fixedly penetrated by an air inlet pipe; and

[0007] The damper assembly includes a driving member fixedly mounted in a mounting cover, a damper plate rotatably mounted in an air inlet duct, and a sealing ring circumferentially arranged on the damper plate side wall. The damper plate is arranged close to one end of the air inlet duct located in the mounting cover, the power output end of the driving member is connected to the damper plate, and the sealing ring is used to rotate and fill the space between the damper plate and the inner wall of the air inlet duct.

[0008] Compared with the prior art, the utility model has the following beneficial effects: when in use, the mounting cover is fixedly mounted on the fresh air inlet of the air-conditioning cabinet, so that the air inlet duct is arranged opposite to the fresh air inlet, and after the fresh air function of the air conditioner is turned on, the driving member starts to drive the damper plate to rotate, so as to connect the fresh air inlet with the air inlet duct and the external environment; when the fresh air function of the air conditioner is turned off, the driving member starts again to drive the damper plate to rotate in the opposite direction, so that the damper plate separates the fresh air inlet from the air inlet duct and the external environment, and at this time the sealing ring seals and fills the space between the damper plate and the inner wall of the air inlet duct, thereby ensuring that the fresh air inlet is well airtight; the operation is simple and convenient, and the fresh air inlet can be closed by a simple structure to ensure that dust and other impurities are not accumulated inside, thereby ensuring the normal use of the fresh air function of the air conditioner.

[0009] Preferably, the damper plate includes a rotating shaft rotatably installed in the air inlet duct and two sealing plates fixedly connected to the rotating shaft. One end of the rotating shaft freely passes through the air inlet duct and is connected to the power output end of the driving member. The two sealing plates are symmetrically arranged on both sides of the rotating shaft. The shape formed by the assembly of the two sealing plates and the rotating shaft is the same as the cross-sectional shape of the air inlet duct.

[0010] Preferably, the sealing ring includes two circular ring segments and two circular arc segments arranged opposite to each other, the two circular arc segments are arranged alternately with the two circular ring segments, the two circular arc segments are connected to the side walls of the two sealing plates one by one, and the two ends of the rotating shaft freely pass through the two circular ring segments one by one.

[0011] Preferably, a first support plate and a second support plate are fixedly installed on the inner wall of the mounting cover facing each other, the first support plate and the second support plate are arranged on both sides of one end of the air inlet pipe located in the mounting cover, the driving member is fixedly installed on the first support plate, and a first connecting shaft and a second connecting shaft are coaxially fixedly installed on both ends of the rotating shaft, the first connecting shaft freely passes through the corresponding circular ring segment, the side wall of the air inlet pipe and the first support plate, and is connected to the power output end of the driving member, and the second connecting shaft freely passes through the corresponding circular ring segment and the side wall of the air inlet pipe, and is rotatably connected to the second support plate.

[0012] Preferably, the driving member comprises a motor fixedly mounted on the first support plate, and the first connecting shaft freely passes through the corresponding annular segment, the side wall of the air inlet pipe and the first support plate and is detachably connected to the power output shaft of the motor.

[0013] Preferably, the power output shaft of the motor is a flat shaft, and a flat slot is provided along the axial direction of one end of the first connecting shaft away from the rotating shaft, and the power output shaft of the motor is plugged into and fitted with the slot.

[0014] Preferably, a clamping plate is fixedly mounted on the side wall of each sealing plate along its circumference, and a clamping groove is opened on the inner wall of each arc segment along its circumference, and the clamping plate is used to be clamped and matched with the clamping groove.

[0015] Preferably, a limiter is provided between the first connecting shaft and the first supporting plate, and the limiter is used to limit the rotation shaft from driving the two sealing plates to rotate between being perpendicular or parallel to the axial direction of the air inlet pipe.

[0016] Preferably, the limiting member comprises a limiting block fixedly mounted on the side wall of the first connecting shaft and a baffle fixedly mounted on the side wall of the first supporting plate close to the air inlet pipe, and the baffle is located on the rotation track of the limiting block.

[0017] An air conditioner comprises the fresh air inlet sealing structure.

[0018] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0020] Figure 2 for Figure 1 Front view of .

[0021] Figure 3 for Figure 2 Cross-sectional view along the AA direction.

[0022] Figure 4 for Figure 3 A partial enlarged view of part Ⅰ.

[0023] Figure 5 for Figure 3 Cross-sectional view with the middle cover open.

[0024] Figure 6 for Figure 5 A partial enlarged view of middle II.

[0025] Figure 7 for Figure 1 Schematic diagram of the internal structure of the sealing structure of the central fresh air inlet.

[0026] Figure 8 for Figure 7 Schematic diagram of the structure of the middle wind door assembly.

[0027] Fig. 9 for Figure 8 Schematic diagram of the structure of the stroke door panel.

[0028] Fig.10 for Figure 8 Schematic diagram of the structure of the middle sealing ring.

[0029] The numbers in the figure are: 1. air conditioning cabinet; 2. installation cover; 21. air inlet duct; 3. sealing plate; 31. rotating shaft; 32. first connecting shaft; 33. second connecting shaft; 34. limiting block; 35. snap-on plate; 36. slot; 4. sealing ring; 41. snap-on groove; 5. first support plate; 51. baffle; 6. motor; 7. second support plate. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0031] like Figure 1-6 As shown, an embodiment of the utility model provides a fresh air inlet sealing structure, including: a mounting cover 2, on the closed end of which an air inlet pipe 21 is fixedly installed and penetrated; and a damper assembly, which includes a driving member fixedly installed in the mounting cover 2, a damper plate rotatably installed in the air inlet pipe 21, and a sealing ring 4 arranged on the damper plate along the circumference of the side wall of the damper plate, the damper plate is arranged near one end of the air inlet pipe 21 located in the mounting cover 2, the power output end of the driving member is connected to the damper plate, and the sealing ring 4 is used to rotate and fill the space between the damper plate and the inner wall of the air inlet pipe 21.

[0032] The mounting cover 2 is fixedly mounted on the fresh air inlet of the air-conditioning cabinet 1 so that the air inlet duct 21 is arranged opposite to the fresh air inlet. After the fresh air function of the air conditioner is turned on, the driving component starts to drive the damper plate to rotate so as to connect the fresh air inlet with the air inlet duct 21 and the external environment; when the fresh air function of the air conditioner is turned off, the driving component starts again to drive the damper plate to rotate in the opposite direction so that the damper plate separates the fresh air inlet from the air inlet duct 21 and the external environment, and at this time the sealing ring 4 seals and fills the space between the damper plate and the inner wall of the air inlet duct 21 to ensure that the fresh air inlet is well airtight; the operation is simple and convenient, and the fresh air inlet can be closed by a simple structure to ensure that dust and other impurities are not accumulated inside, thereby ensuring the normal use of the fresh air function of the air conditioner.

[0033] like Figure 7-10 As shown, according to another embodiment of the utility model, the fresh air inlet sealing structure is further optimized with respect to the damper plate, sealing ring 4 and driving member included therein, the damper plate includes a rotating shaft 31 rotatably installed in the air inlet pipe 21 and two sealing plates 3 fixedly connected to the rotating shaft 31, one end of the rotating shaft 31 freely passes through the air inlet pipe 21 and is connected to the power output end of the driving member, the two sealing plates 3 are symmetrically arranged on both sides of the rotating shaft 31, and the shape formed by assembling the two sealing plates 3 and the rotating shaft 31 is the same as the cross-sectional shape of the air inlet pipe 21; it can ensure that the sealing plate 3 does not interfere with the side wall of the air inlet pipe 21 during rotation, and the cross-section of the air inlet pipe 21 can be a circular, elliptical, or polygonal shape with an even number of sides with equiaxial symmetry.

[0034] The sealing ring 4 includes two circular segments and two circular arc segments arranged opposite to each other, the two circular arc segments are arranged alternately with the two circular segments, the two circular arc segments are connected to the side walls of the two sealing plates 3 one by one, and the two ends of the rotating shaft 31 freely pass through the two circular segments one by one; preferably, a clamping plate 35 is fixedly installed on the side wall of each sealing plate 3 along its circumference, and a clamping groove 41 is opened on the inner wall of each circular arc segment along its circumference, and the clamping plate 35 is used to clamp and cooperate with the clamping groove 41; it can ensure that the sealing ring 4 can be installed on the sealing plate 3 more stably, and at the same time, the sealing plate 3 is made of hard plastic, and the sealing ring 4 side is made of elastic soft rubber, so that the sealing ring 4 can undergo elastic deformation to adapt to the different shapes formed by the assembly of the two sealing plates 3 and the rotating shaft 31.

[0035] A first support plate 5 and a second support plate 7 are fixedly installed on the inner wall of the mounting cover 2 facing each other. The first support plate 5 and the second support plate 7 are arranged on both sides of one end of the air inlet pipe 21 located in the mounting cover 2. The driving member is fixedly installed on the first support plate 5, and a first connecting shaft 32 and a second connecting shaft 33 are coaxially fixedly installed at both ends of the rotating shaft 31. The first connecting shaft 32 freely passes through the corresponding circular ring segment, the side wall of the air inlet pipe 21 and the first support plate 5, and then is connected to the power output end of the driving member. The second connecting shaft 33 freely passes through the corresponding circular ring segment and the side wall of the air inlet pipe 21, and then is rotatably connected to the second support plate 7.

[0036] The driving member includes a motor 6 fixedly mounted on the first support plate 5, and the first connecting shaft 32 freely passes through the corresponding circular ring segment, the side wall of the air inlet pipe 21 and the first support plate 5 and is detachably connected to the power output shaft of the motor 6; and preferably, the power output shaft of the motor 6 is a flat shaft, and a flat-shaped slot 36 is provided along its axial direction at one end of the first connecting shaft 32 away from the rotating shaft 31, and the power output shaft of the motor 6 is plugged into the slot 36; it is convenient for the disassembly and installation of the motor 6 and the first connecting shaft 32, and the motor 6 can be rotated forward and reversely.

[0037] like Figure 3-7 As shown, according to another embodiment of the utility model, a fresh air inlet sealing structure is preferably provided with a limiter between the first connecting shaft 32 and the first support plate 5, and the limiter is used to limit the rotating shaft 31 to drive the two sealing plates 3 to rotate between the axes of vertical or parallel to the air inlet pipe 21; the limiter includes a limiter block 34 fixedly mounted on the side wall of the first connecting shaft 32 and a baffle 51 fixedly mounted on the side wall of the first support plate 5 close to the air inlet pipe 21, and the baffle 51 is located on the rotation trajectory of the limiter block 34; the rotation angle of the rotating shaft 31 can be accurately limited, thereby ensuring that the air intake volume after the air inlet pipe 21 is connected with the fresh air inlet is maximized.

[0038] like Figure 1-2 An air conditioner is shown, comprising the fresh air inlet sealing structure and an air conditioning cabinet 1, wherein the mounting cover 2 of the fresh air inlet sealing structure is fixedly mounted at the fresh air inlet of the air conditioning cabinet 1, and the air inlet pipe 21 is arranged directly opposite the fresh air inlet, so that dust and other impurities will not accumulate at the fresh air inlet of the air conditioning cabinet 1, thereby ensuring that the fresh air function of the air conditioning cabinet 1 operates normally; wherein, the specific structure and use principle of the air conditioning cabinet 1 are prior arts and are not described in detail here.

[0039] The operating principle of the utility model is as follows: when the utility model is used, the mounting cover 2 is fixedly installed at the fresh air inlet of the air-conditioning cabinet 1, and the air inlet duct 21 is arranged opposite to the fresh air inlet. When the fresh air function is started, the motor 6 starts to drive the rotating shaft 31 to rotate, and the rotating shaft 31 drives the two sealing plates 3 to rotate to a position parallel to the axial direction of the air inlet duct 21, so that the fresh air inlet is connected to the air inlet duct 21 and the external environment; when the fresh air function is turned off, the motor 6 starts again to drive the rotating shaft 31 to rotate in the opposite direction, and the rotating shaft 31 drives the two sealing plates 3 to rotate to a position perpendicular to the axial direction of the air inlet duct 21 to close the air inlet duct 21, and at the same time the sealing ring 4 seals and fills the space between the two sealing plates 3 and the rotating shaft 31 and the air inlet duct 21 to ensure that the fresh air inlet is well sealed.

[0040] 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 sealing structure, characterized in that: include: An installation cover (2) is provided, on the closed end of which an air inlet pipe (21) is fixedly installed and penetrated; as well as A damper assembly comprises a driving member fixedly mounted in a mounting cover (2), a damper plate rotatably mounted in an air inlet pipe (21), and a sealing ring (4) arranged on the damper plate along the circumference of the side wall thereof, wherein the damper plate is arranged at one end of the mounting cover (2) close to the air inlet pipe (21), the power output end of the driving member is connected to the damper plate, and the sealing ring (4) is used to rotate and fill the space between the damper plate and the inner wall of the air inlet pipe (21).

2. A fresh air inlet sealing structure according to claim 1, characterized in that: The damper plate comprises a rotating shaft (31) rotatably mounted in the air inlet pipe (21) and two sealing plates (3) fixedly connected to the rotating shaft (31); one end of the rotating shaft (31) freely passes through the air inlet pipe (21) and is connected to the power output end of the driving member; the two sealing plates (3) are symmetrically arranged on both sides of the rotating shaft (31); and the shape formed by assembling the two sealing plates (3) and the rotating shaft (31) is the same as the cross-sectional shape of the air inlet pipe (21).

3. A fresh air inlet sealing structure according to claim 2, characterized in that: The sealing ring (4) comprises two circular ring segments and two circular arc segments arranged opposite to each other, the two circular arc segments are arranged alternately with the two circular ring segments, the two circular arc segments are connected to the side walls of the two sealing plates (3) in a one-to-one correspondence, and the two ends of the rotating shaft (31) freely pass through the two circular ring segments in a one-to-one correspondence.

4. A fresh air inlet sealing structure according to claim 2, characterized in that: A first support plate (5) and a second support plate (7) are fixedly mounted on the inner wall of the mounting cover (2) facing each other. The first support plate (5) and the second support plate (7) are arranged on both sides of one end of the air inlet pipe (21) located inside the mounting cover (2). The driving member is fixedly mounted on the first support plate (5). A first connecting shaft (32) and a second connecting shaft (33) are coaxially fixedly mounted on both ends of the rotating shaft (31). The first connecting shaft (32) freely passes through the corresponding annular segment, the side wall of the air inlet pipe (21) and the first support plate (5), and then is connected to the power output end of the driving member. The second connecting shaft (33) freely passes through the corresponding annular segment and the side wall of the air inlet pipe (21), and then is rotatably connected to the second support plate (7).

5. A fresh air inlet sealing structure according to claim 4, characterized in that: The driving member comprises a motor (6) fixedly mounted on a first support plate (5); the first connecting shaft (32) freely passes through the corresponding annular segment, the side wall of the air inlet pipe (21) and the first support plate (5) and is detachably connected to the power output shaft of the motor (6).

6. A fresh air inlet sealing structure according to claim 5, characterized in that: The power output shaft of the motor (6) is a flat shaft, and a flat slot (36) is provided along the axial direction of one end of the first connecting shaft (32) away from the rotating shaft (31), and the power output shaft of the motor (6) is plugged into and matched with the slot (36).

7. A fresh air inlet sealing structure according to claim 3, characterized in that: A clamping plate (35) is fixedly mounted on the side wall of each sealing plate (3) along its circumference, and a clamping groove (41) is opened on the inner wall of each circular arc segment along its circumference, and the clamping plate (35) is used for clamping and matching with the clamping groove (41).

8. A fresh air inlet sealing structure according to claim 4, characterized in that: A limiter is provided between the first connecting shaft (32) and the first supporting plate (5), and the limiter is used to limit the rotation of the two sealing plates (3) driven by the rotating shaft (31) to rotate between the axes perpendicular to or parallel to the axis of the air inlet pipe (21).

9. A fresh air inlet sealing structure according to claim 8, characterized in that: The limiting member comprises a limiting block (34) fixedly mounted on a side wall of the first connecting shaft (32) and a baffle (51) fixedly mounted on a side wall of the first supporting plate (5) close to the air inlet pipe (21), wherein the baffle (51) is located on a rotation track of the limiting block (34).

10. An air conditioner, characterized in that: It comprises a fresh air inlet sealing structure as described in any one of claims 1 to 9.

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