CN215808862U

CN215808862U - Fresh air inlet closing assembly, fresh air device and air conditioner

Info

Publication number: CN215808862U
Application number: CN202122265723.2U
Authority: CN
Inventors: 单联瑜; 吴庆壮; 孟红武
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-02-11
Anticipated expiration: 2031-09-17

Abstract

The utility model provides a fresh air opening closing assembly, a fresh air device and an air conditioner, wherein the fresh air opening closing assembly comprises: the wind power generation device comprises a mounting frame (10), a driving part (20) and a wind door plate (30), wherein the mounting frame (10) is provided with a guide hole (11); the driving part (20) is arranged on the mounting frame (10); a transmission shaft (31) is formed on the surface of the wind door panel (30), and a rotating shaft (21) of the driving part (20) penetrates through the guide hole (11) and is in transmission connection with the transmission shaft (31) in the circumferential direction so as to drive the wind door panel (30) to rotate around the rotating shaft (21); the transmission shaft (31) and the guide hole (11) form axial guide fit, a pushing structure (111) is arranged in the guide hole (11), and the transmission shaft (31) is pushed by the pushing structure (111) to move axially towards the hole (11) in the rotating process. The fresh air inlet closing assembly can realize complete closing of the air outlet, does not need other guide structures, and is more reliable in sealing.

Description

Fresh air inlet closing assembly, fresh air device and air conditioner

Technical Field

The utility model relates to the technical field of fresh air conditioners, in particular to a fresh air opening closing assembly, a fresh air device and an air conditioner.

Background

The fresh air device is a device for conveying fresh and clean air to the room, and can be used alone or as part of an air conditioner. The fresh air device is provided with a channel for communicating the indoor and the outdoor, and a filtering device can be arranged in the channel.

When the fresh air device does not work, the channel needs to be closed so as to keep the indoor temperature stable within a fixed range for a long time. For example, in winter, if the air conditioner is in a heating mode and the channel of the fresh air device is opened, outdoor cold air is likely to enter the room through the channel, so that the indoor temperature is not constant. Therefore, the channel of the fresh air device is also provided with an openable and closable air door plate.

In the correlation technique, the scheme of sliding door is adopted mostly to the fan board, and this technical scheme can block the dust and get into, nevertheless because sliding door mechanism needs to reserve the movement clearance and leads to being difficult to realize airtight reliably when new trend device does not open, finally influences user experience.

In the related art, the fresh air device is sealed by an air inlet sealing valve or a sliding surface air outlet sealing mechanism. The air inlet sealing valve has the problems of large air inlet wind resistance, influence on air quantity, higher failure rate and low reliability of a fresh air device. The sliding door air-out sealing mechanism is adopted, and the air-out sealing is not tight due to the fact that the mechanism needs to reserve movement gaps.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, an embodiment of the present invention proposes a fresh air opening closing assembly, including:

a mounting bracket having a guide hole;

a drive member disposed at the mounting bracket; and

the air door plate is provided with a transmission shaft on the plate surface, the rotating shaft of the driving part penetrates through the guide hole and is in circumferential transmission connection with the transmission shaft so as to drive the air door plate to rotate around the rotating shaft, and the air door plate is used for sealing an air outlet of a fresh air device;

the transmission shaft and the guide hole form axial guide fit.

The guide hole is internally provided with a pushing structure, and the transmission shaft is pushed by the pushing structure to move along the axial direction of the guide hole in the rotating process.

The utility model discloses fresh air inlet closing assembly has following technological effect: the air outlet can be completely closed, other guide structures are not needed, and the sealing is more reliable.

Optionally, a protrusion is formed on the mounting bracket, and the guide hole passes through the protrusion.

Optionally, the guide hole comprises a first hole section and a second hole section which are communicated with each other, the diameter of the first hole section is larger than that of the second hole section, and the transmission shaft and the first hole section form axial guide fit;

the pushing structure is a connection inclined plane of the first hole section and the second hole section, and the end of the transmission shaft is provided with an end inclined plane matched with the connection inclined plane.

Optionally, an included angle between the connection inclined surface and the end surface of the guide hole ranges from 15 degrees to 20 degrees.

Optionally, a matching hole is formed in the center of the transmission shaft, and the rotating shaft penetrates through the matching hole and is in circumferential transmission connection with the transmission shaft.

Optionally, the mating hole is a rectangular hole.

Optionally, a clearance fit is formed between the rotating shaft and the fitting hole.

Optionally, the drive shaft forms a clearance fit with the guide bore.

The embodiment of the utility model also provides a fresh air device which comprises a shell and the fresh air opening closing assembly, wherein the air outlet is formed on the shell, and the mounting rack is fixedly connected with the shell;

the driving component can drive the air door plate to switch between a first position and a second position;

and in the first position, the air door plate seals the air outlet of the fresh air device.

And in the second position, the air door plate leaves the air outlet of the fresh air device.

The embodiment of the utility model also provides an air conditioner which comprises the fresh air device.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic perspective view of a fresh air device according to an embodiment of the present invention, wherein a damper panel is located at a first position;

FIG. 2 is a schematic perspective view of a fresh air device according to an embodiment of the present invention, wherein the damper plate is located at a second position;

FIG. 3 is a schematic perspective view of a fresh air opening closure assembly according to an embodiment of the present invention;

FIG. 4 is a perspective view of a damper panel according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a mounting bracket according to an embodiment of the utility model;

FIG. 6 is a schematic cross-sectional view of the fresh air opening closing assembly of an embodiment of the present invention with the damper panel in a first position;

FIG. 7 is a schematic sectional view of the fresh air opening closing assembly according to an embodiment of the present invention, wherein the damper panel is located at a second position.

Reference numerals:

10-mounting frame, 11-guide hole; 111-a push structure; 112-a first bore section; 113-a second bore section; 101-a boss;

20-a drive member; 21-a rotating shaft;

30-a wind gate panel; 31-a drive shaft; 311-end bevel; 312-a mating hole;

40-a fresh air device; 41-air outlet; 42-shell.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

This embodiment provides a fresh air inlet closing assembly for closing the air outlet 41 of the fresh air device 40. Referring to fig. 3 to 7, the fresh air opening closing assembly includes: a mounting frame 10, a driving part 20 and a damper panel 30.

Referring to fig. 5, the mounting bracket 10 has a guide hole 11; referring to fig. 6 to 7, the driving part 20 is disposed on the mounting frame 10; a transmission shaft 31 is formed on the plate surface of the wind door plate 30, the rotating shaft 21 of the driving part 20 penetrates through the guide hole 11 and is in transmission connection with the transmission shaft 31 in the circumferential direction so as to drive the wind door plate 30 to rotate around the rotating shaft 21, and the wind door plate 30 is used for sealing an air outlet 41 of the fresh air device 40; the rotating shaft 21 and the transmission shaft 31 are relatively movable in the axial direction and synchronously rotatable in the circumferential direction.

The transmission shaft 31 forms an axial guiding fit with the guide hole 11 so that the transmission shaft 31 can move in the guide hole 11 in the axial direction of the guide hole 11.

Referring to fig. 5, the guide hole 11 has a pushing structure 111 therein, and the transmission shaft 31 is pushed by the pushing structure 111 to move in an axial direction toward the hole 11 during rotation. Therefore, the driving member 20 drives the damper panel 30 to rotate while also moving the damper panel 30 in the vertical direction. Wherein, the transmission shaft 31 can fall along the axial direction of the guide hole 11 under the gravity of the wind plate 30.

As shown in fig. 1-2, in fig. 2, the flap 30 leaves the air outlet 41, and the driving member 20 drives the flap 30 to rotate and slide down under the action of gravity until the flap covers the air outlet 41, so as to seal the air outlet 41.

The fresh air inlet closing assembly is simple in structure, but good in sealing effect on the air outlet 41, and capable of completely sealing the air outlet 41.

In some embodiments, the mounting bracket 10 is formed with a boss 101, and the guide hole 11 passes through the boss 101. The provision of the projection 101 can increase the length of the guide hole 11, thereby facilitating the arrangement of the pushing structure 111, the rotating shaft 21, and the transmission shaft 31 and other related components in the guide hole 11.

The protruding portion 101 may be disposed on the outer side of the mounting frame 10, may be disposed on the inner side of the mounting frame 10, or may be disposed on both the outer side and the inner side of the mounting frame 10.

In some embodiments, the pilot bore 11 includes a first bore section 112 and a second bore section 113 that communicate with each other, the first bore section 112 having a diameter greater than a diameter of the second bore section 113, the drive shaft 31 forming an axially directed fit with the first bore section 112; the pushing structure 111 is a junction slope of the first hole section 112 and the second hole section 113, and the end of the transmission shaft 31 has an end slope 311 matching the junction slope. Referring to fig. 6, the end slope 311 and the connection slope can be completely attached, and when the transmission shaft 31 rotates, the end slope 311 rotates relative to the connection slope, so that the connection slope pushes the end slope 311, and the transmission shaft 31 moves upward. When the transmission shaft 31 rotates in the opposite direction, the damper plate 30 slides down under the action of gravity, so that the end inclined surface 311 and the connection inclined surface are attached again.

When the air outlet 41 needs to be sealed, the air flap plate 30 slides downwards until the air flap plate 30 presses on the end surface of the air outlet 41.

In some embodiments, referring to FIG. 5, the angle between the mating ramp and the end surface of the pilot hole 11 is a, which is in the range of 15-20. For example, a may be 16 °, 17 °, 18 °, 19 °, etc. The included angle between the cross-over slope and the end face of the guiding hole 11 in this range enables the pushing structure 111 to push the transmission shaft 31 to move more easily, so that the driving operation can be realized by selecting the driving part 20 with smaller power.

The drive member 20 may be an electric motor, the power parameters of which are selected according to the actual requirements. The motor drive is adopted, so that the sealing accuracy is improved.

In some embodiments, referring to fig. 4, a fitting hole 312 is formed in a central position of the transmission shaft 31, and the rotating shaft 21 is inserted into the fitting hole 312 and is connected to the transmission shaft 31 in a circumferential transmission manner. The fitting hole 312 is a rectangular hole, and the end surface of the rotating shaft 21 is rectangular, so as to fit with the fitting hole 312.

In order to ensure that the rotating shaft 21 can move relative to the transmission shaft 31 in the axial direction of the transmission shaft 31, a clearance fit is formed between the rotating shaft 21 and the fitting hole 312. A certain frictional force may exist between the rotation shaft 21 and the inner wall of the fitting hole 312 as long as the driving part 20 can overcome the frictional force.

In some embodiments, the drive shaft 31 forms a clearance fit with the guide hole 11. So that the transmission shaft 31 can be better moved in the axial direction of the guide hole 11 with respect to the rotation shaft 21.

In the above embodiment, referring to fig. 6 and 7, the central axis of the transmission shaft 31, the central axis of the rotation shaft 21, and the central axis of the guide hole 11 are all collinear.

The embodiment further provides a fresh air device 40, referring to fig. 1 and fig. 2, the fresh air device 40 includes a housing 42 and a fresh air opening closing component of any of the embodiments, an air outlet 41 is formed on the housing 42, and the mounting frame 10 is fixedly connected with the housing 42; the driving part 20 can drive the air door panel 30 to switch between the first position and the second position; in the first position, the flap 30 closes the air outlet 41 of the fresh air device 40, and in the second position, the flap 30 leaves the air outlet 41 of the fresh air device 40.

Since the air flap plate 30 needs to slide down under the action of gravity when in use, the air flap plate 30 is always positioned above the air outlet 41.

The fresh air device 40 may be used alone or may be installed in an air conditioner to be used as a part of the air conditioner.

In some embodiments, the damper plate 30 is always parallel to the sealing surface of the outlet 41 during the switching of the damper plate 30 between the first position and the second position.

The present embodiment also provides an air conditioner (not shown in the drawings), including the fresh air device 40 according to any of the above embodiments. Because this air conditioner has set up the new trend device 40 of above-mentioned embodiment, consequently can be fast accurate when needs the new trend realize opening of wind door plant 30, when not needing the new trend, wind door plant 30 can cover the air outlet 41 on steadily.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A fresh air opening closure assembly, comprising:

a mounting bracket (10), the mounting bracket (10) having a guide hole (11);

a drive member (20), the drive member (20) being provided to the mounting bracket (10); and

the air door plate (30) is provided with a transmission shaft (31) on the plate surface of the air door plate (30), the rotating shaft (21) of the driving part (20) penetrates through the guide hole (11) and is in circumferential transmission connection with the transmission shaft (31) so as to drive the air door plate (30) to rotate around the rotating shaft (21), and the air door plate (30) is used for sealing an air outlet (41) of a fresh air device (40);

the transmission shaft (31) and the guide hole (11) form axial guide fit,

the guide hole (11) is internally provided with a pushing structure (111), and the transmission shaft (31) is pushed by the pushing structure (111) to move along the axial direction of the guide hole (11) in the rotating process.

2. Fresh air opening closure assembly according to claim 1, wherein a boss (101) is formed on the mounting frame (10), the guide hole (11) passing through the boss (101).

3. Fresh air opening closure assembly according to claim 1, wherein the guiding hole (11) comprises a first hole section (112) and a second hole section (113) communicating with each other, the diameter of the first hole section (112) being larger than the diameter of the second hole section (113), the transmission shaft (31) forming an axial guiding fit with the first hole section (112);

the pushing structure (111) is a connection inclined plane of the first hole section (112) and the second hole section (113), and the end of the transmission shaft (31) is provided with an end inclined plane (311) matched with the connection inclined plane.

4. Fresh air opening closure assembly according to claim 3, wherein the angle between the intersection ramp and the end surface of the guiding hole (11) is in the range of 15 ° to 20 °.

5. The fresh air inlet closing assembly as claimed in claim 1, wherein a fitting hole (312) is formed in a center position of the transmission shaft (31), and the rotating shaft (21) is inserted into the fitting hole (312) and is in circumferential transmission connection with the transmission shaft (31).

6. The fresh air opening closure assembly as claimed in claim 5, wherein the mating hole (312) is a rectangular hole.

7. Fresh air opening closure assembly according to claim 5, wherein a clearance fit is formed between the rotary shaft (21) and the fitting hole (312).

8. Fresh air opening closure assembly according to claim 5, wherein the transmission shaft (31) forms a clearance fit with the guiding hole (11).

9. Fresh air device (40) comprising a housing (42) and a fresh air opening closure assembly according to any one of claims 1 to 8, the air outlet (41) being formed in the housing (42), the mounting frame (10) being fixedly connected to the housing (42);

the driving component (20) can drive the wind door panel (30) to switch between a first position and a second position;

in the first position, the air door plate (30) closes an air outlet (41) of the fresh air device (40),

in the second position, the air flap (30) leaves an air outlet (41) of the fresh air device (40).

10. An air conditioner, characterized in that it comprises a fresh air device (40) according to claim 9.