Fresh air supply control device and air conditioner

Abstract

This invention provides a fresh air outlet control device and an air conditioner, relating to the field of air conditioner technology, and is designed to solve the problem of inconvenient adjustment of fresh air output volume by fresh air fans. The fresh air outlet control device includes a drive mechanism, an inner cylinder, and an outer cylinder. The inner cylinder is rotatably disposed within the outer cylinder, and the rotation axis of the inner cylinder relative to the outer cylinder coincides with the first central axis of the inner cylinder. The outer cylinder has multiple air outlets, and the inner cylinder has multiple openings, the positions and shapes of which correspond to the positions and shapes of the multiple openings and air outlets. The drive mechanism is drivenly connected to the inner cylinder and includes a drive motor, which is used to change the opening degree of the openings and air outlets. The fresh air outlet control device provided by this invention allows for more convenient adjustment of the air output volume.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and more specifically, to a fresh air outlet control device and an air conditioner. Background Technology

[0002] In existing technologies, air conditioners with fresh air functions introduce outdoor air into the room through a fresh air unit to gradually expel stale indoor air. However, since the windows are closed at this time, the indoor air can only be gradually expelled through door and window gaps, resulting in a slow exhaust rate and a low rate of fresh air replenishment, leading to poor fresh air performance. Furthermore, existing air conditioners often adjust the fresh air volume by regulating the speed of the fresh air fan. However, adjusting the fan speed requires operating the fresh air fan at a lower speed range if a lower air volume is needed, which is detrimental to the fan's efficiency and reduces its overall performance. Summary of the Invention

[0003] The first objective of this invention is to provide a fresh air outlet control device to solve the technical problem that it is inconvenient to adjust the fresh air outlet volume of existing fresh air fans.

[0004] The present invention provides a fresh air outlet control device, comprising a drive mechanism, an inner cylinder, and an outer cylinder. The inner cylinder is rotatably disposed within the outer cylinder, and the rotation axis of the inner cylinder relative to the outer cylinder coincides with the first central axis of the inner cylinder. The outer cylinder is provided with multiple air outlets, and the inner cylinder is provided with multiple openings, which are correspondingly disposed with the multiple air outlets. The drive mechanism is drivenly connected to the inner cylinder, and the drive mechanism includes a drive motor, which is used to drive the openings of the openings and air outlets to change between 0% and 100% in the air outlet state.

[0005] The beneficial effects of the fresh air outlet control device of this invention are:

[0006] By using a drive motor to rotate the inner cylinder, the opening of the air outlet varies depending on the position of the rotation, thereby changing the air outlet area and thus the air volume. This allows for more convenient adjustment of the air volume without changing the speed range of the fan motor, which would reduce the efficiency of the fan motor.

[0007] Preferably, the inner cylinder further includes a solid portion, wherein in the air outlet state, the area of ​​the solid portion that blocks the air outlet is less than or equal to 50% of the total area of ​​the air outlet.

[0008] By setting the area of ​​the physical part that blocks the air outlet when the air is being ventilated to be less than or equal to 50% of the total area of ​​the air outlet, it is possible to change the ventilation area of ​​most of the cross-section of the air outlet, or to close the air outlet, thereby increasing the proportion of the air outlet area that can be changed and improving the effect of regulating the air volume.

[0009] Preferably, the air outlet includes a first air outlet and a second air outlet, the lower edge of the first air outlet is higher than the lower edge of the second air outlet, the opening includes a first opening and a second opening, the lower edge of the first opening is higher than the lower edge of the second opening, the first opening is used to control the overlapping area of ​​the first air outlet and the second opening is used to control the overlapping area of ​​the second air outlet and the second opening.

[0010] By setting a first air outlet and a second air outlet with different lower edge heights, as well as a first opening and a second opening, the first opening can be matched with the first air outlet, and the second opening can be matched with the second air outlet. This ensures that the corresponding air outlets can open to the corresponding size, avoiding the first opening from blocking a large area of ​​the second air outlet and affecting airflow, while also wasting the opening area of ​​the second opening.

[0011] Preferably, both the inner cylinder and the outer cylinder are frustum-shaped, the air outlet is trapezoidal, the two sides of the trapezoid coincide with the generatrix of the outer cylinder, and the opening can overlap with the entire area of ​​the air outlet.

[0012] By setting the air outlet to a trapezoidal shape, the overlapping area of ​​the air outlet and the corresponding opening, i.e. the effective air outlet area, can be linearly related to the rotation angle of the inner cylinder, which facilitates the control of the air outlet area.

[0013] Preferably, the drive mechanism further includes a transmission component, the power input end of which is connected to the drive motor, and the power output end of which is connected to the inner cylinder, and the transmission component is a constant speed ratio transmission component.

[0014] By setting a constant speed ratio transmission component, the rotation of the drive motor can be converted into the rotation of the inner cylinder in a stable ratio. The rotation position of the inner cylinder can be accurately determined simply by controlling the position of the motor output shaft of the drive motor, thereby improving the reliability and convenience of control.

[0015] Preferably, the transmission assembly includes a gear and an arc-shaped rack, the gear and the arc-shaped rack meshing, the gear being mounted on the output shaft of the drive motor, and the arc-shaped rack being fixedly disposed on the inner cylinder.

[0016] The transmission method using gears and arc-shaped racks avoids the problem of slippage between the two, which helps to reliably convert the rotation of the drive motor into the rotation of the inner cylinder, so as to accurately control the position of the inner cylinder and thus improve the accuracy of the position control of the inner cylinder.

[0017] Preferably, the drive motor is installed on the outer side of the top wall of the outer cylinder, the motor output shaft of the drive motor passes through the top wall of the outer cylinder, and the arc-shaped rack is disposed on the outer side of the top wall of the inner cylinder.

[0018] By placing the drive mechanism on the top wall of the outer cylinder, the impact of the drive motor on the air outlet duct connected to the air outlet can be reduced, making the duct layout easier. Furthermore, it also reduces the impact of the drive mechanism passing through the side wall on the airtightness of the outer cylinder, thus minimizing air leakage.

[0019] Preferably, the inner wall of the outer cylinder is provided with a first limiting part in the first direction of the air outlet, the first direction being the movement direction of the inner cylinder when the air outlet is opened; the outer wall of the inner cylinder is provided with a second limiting part in the first direction of the opening, the second limiting part being able to abut against the first limiting part when the inner cylinder moves along the first direction.

[0020] By setting a first limiting part in the first direction of the air outlet and a second limiting part in the first direction of the opening, the maximum rotation angle of the inner cylinder in the first direction can be limited by the contact between the first limiting part and the second limiting part when the inner cylinder moves in the direction of the open air outlet, so as to ensure that the movement is in place.

[0021] Preferably, the inner wall of the outer cylinder is provided with a third limiting part in the second direction of the air outlet, the second direction being the movement direction of the inner cylinder to close the air outlet; the outer wall of the inner cylinder is provided with a fourth limiting part in the second direction of the opening; when the inner cylinder moves along the first direction, the fourth limiting part can abut against the third limiting part, and / or, when the inner cylinder moves along the second direction, the second limiting part can abut against the third limiting part.

[0022] By providing a third limiting part in the second direction of the air outlet and a fourth limiting part in the second direction of the opening, the maximum rotation angle of the inner cylinder in the second direction can be limited by the contact between the third and second limiting parts when the inner cylinder moves in the direction of closing the air outlet, or the maximum rotation angle of the inner cylinder in the first direction can be limited by the third and fourth limiting parts when the inner cylinder moves in the direction of opening the air outlet, thus ensuring that the movement is in place.

[0023] The second objective of this invention is to provide an air conditioner that solves the technical problem of inconvenience in adjusting the fresh air output of the fresh air fan.

[0024] The air conditioner provided by the present invention includes the above-mentioned fresh air outlet control device.

[0025] By installing the aforementioned fresh air outlet control device in the air conditioner, the air conditioner accordingly possesses all the advantages of the aforementioned fresh air outlet control device, which will not be elaborated upon here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments or background art of the present invention, the drawings used in the description of the embodiments or background art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the fresh air outlet control device provided in Embodiment 1 of the present invention;

[0028] Figure 2 This is an exploded perspective view of the fresh air outlet control device provided in Embodiment 1 of the present invention;

[0029] Figure 3 This is a partial cross-sectional view of the fresh air outlet control device provided in Embodiment 1 of the present invention in the state where the air outlet is fully open;

[0030] Figure 4 This is a partial cross-sectional view of the fresh air outlet control device provided in Embodiment 1 of the present invention in the state where the air outlet is closed in the inner cylinder;

[0031] Figure 5 This is a partial cross-sectional view of the fresh air outlet control device provided in Embodiment 1 of the present invention with the air outlet part of the inner cylinder open.

[0032] Explanation of reference numerals in the attached figures:

[0033] 10-Inner cylinder; 11-First opening; 12-Second opening; 13-Second limiting part; 14-Fourth limiting part; 20-Outer cylinder; 21-First air outlet; 22-Second air outlet; 23-First limiting part; 24-Third limiting part; 31-Drive motor; 32-Gear; 33-Arc-shaped rack; 41-Front air outlet pipe; 42-Side air outlet pipe. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0035] Example 1:

[0036] Figure 1 This is a schematic diagram of the structure of the fresh air outlet control device provided in Embodiment 1 of the present invention; Figure 2 This is an exploded perspective view of the fresh air outlet control device provided in Embodiment 1 of the present invention. Figures 1-2 As shown, the fresh air outlet control device provided in Embodiment 1 of the present invention is applied to the fresh air unit of a cabinet-type indoor air conditioner. The fresh air outlet control device includes a drive mechanism, an inner cylinder 10, and an outer cylinder 20. The inner cylinder 10 is rotatably disposed in the outer cylinder 20, and the rotation axis of the inner cylinder 10 relative to the outer cylinder 20 coincides with the first central axis of the inner cylinder 10. The outer cylinder 20 is provided with multiple air outlets, and the inner cylinder 10 is provided with multiple openings. The positions and shapes of the multiple openings correspond to the multiple air outlets. The drive mechanism is connected to the inner cylinder 10 for transmission. The drive mechanism includes a drive motor 31, which is used to drive the openings of the openings and air outlets to change between 0% and 100%.

[0037] Specifically, in this embodiment, both the inner cylinder 10 and the outer cylinder 20 include side walls and top walls, but neither includes a bottom wall. The bottom of the inner cylinder 10 is connected to the outlet of the fresh air fan, while the bottom of the outer cylinder 20 accommodates the bottom of the inner cylinder 10. For ease of processing, the overall shape of both the inner cylinder 10 and the outer cylinder 20 is a frustum-shaped cone, smaller at the top and larger at the bottom.

[0038] In this embodiment, the first central axis of the inner cylinder 10, the second central axis of the outer cylinder 20, and the rotation axis are all vertically arranged. Correspondingly, the air outlet duct connected to the air outlet of the outer cylinder 20 discharges air onto the horizontal circumferential surface of the fresh air fan, for example, on the left, right, front, or rear side of the fresh air fan. In another implementation, if the air outlet duct of the fresh air fan is located in other orientations, the first central axis, the second central axis, and the rotation axis can also be horizontally or inclined. This embodiment is primarily described based on a vertical arrangement.

[0039] Within a certain height range, the inner cylinder 10 has alternating solid sections and openings distributed circumferentially, with a portion of the outer surface of the solid sections of the inner cylinder 10 roughly fitting against the inner surface of the outer cylinder 20. Therefore, when the solid sections of the inner cylinder 10 completely cover the air outlet of the outer cylinder 20, the air outlet of the outer cylinder 20 can be closed. When a portion of the air outlet of the outer cylinder 20 overlaps with the solid sections of the inner cylinder 10, and a portion overlaps with the openings of the inner cylinder 10, its air outlet area is smaller than when the air outlet completely overlaps with the openings of the inner cylinder 10. In this case, the overlapping area of ​​the air outlet and the openings is adjustable, and correspondingly, the air outlet area can also be changed.

[0040] The fact that multiple openings and multiple air outlets are set in a corresponding position and shape means that: A) if the position of the air outlet is different, the position of the opening will also be different, or B) the shape of the opening and the shape of the air outlet are configured such that the relative rotation of the inner cylinder 10 and the outer cylinder 20 can change the size of their overlapping area.

[0041] Taking a vertical axis of rotation as an example, for instance, if an air outlet is located at the top of the outer cylinder 20, then the opening of that air outlet should also be located at the top of the outer cylinder 20. If an air outlet is located within most of the height range of the outer cylinder 20, then the opening of that air outlet should also be located within most of the height range of the inner cylinder 10. Moreover, for example, if three air outlets are set at 120° intervals on the outer cylinder 20, then three openings should also be set at 120° intervals on the inner cylinder 10. It is unacceptable that if the air outlets are located at the top of the outer cylinder 20, while the air outlets of the inner cylinder 10 are all located at the bottom of the inner cylinder 10, the outer cylinder 20 and the inner cylinder 10 cannot overlap when rotated relative to each other, and the overlapping area cannot be changed. Alternatively, the opening of the inner cylinder 10 may extend horizontally 360° along the circumference of the inner cylinder 10, and the opening may only be connected vertically by a few connecting rods, so that the overlapping area cannot be significantly changed no matter how the inner cylinder 10 rotates relative to the outer cylinder 20.

[0042] Regarding B, the following scenario or similar situation should be excluded: the opening of the inner cylinder 10 and the air outlet of the outer cylinder 20 are both rectangular or oblong holes inclined at an included angle. Relative rotation of the inner cylinder 10 and the outer cylinder 20 only changes the height of the intersection point of the two rectangles. Therefore, when viewed radially, the two rectangles appear as a V, X, or ^ shape. If the widths of the two rectangles are different, the overlapping part is a parallelogram or rectangle; if the widths of the two rectangles are the same, the overlapping part is a rhombus or square. The height of the overlapping area of ​​such parallelograms, rectangles, rhombuses, or squares changes relative to the opening and air outlet, but the area remains unchanged. Clearly, the implementation of this application does not include this scenario.

[0043] Specifically, in this embodiment, the drive motor 31 can control the rotation angle of the motor output shaft of the drive motor 31, and can be a stepper motor or a servo motor.

[0044] By using the drive motor 31 to drive the inner cylinder 10 to rotate, the opening of the air outlet is different when it rotates to different positions, thereby changing the air outlet area and thus changing the air volume. This makes it easier to adjust the air volume without changing the speed range of the fan motor, which would reduce the efficiency of the fan motor.

[0045] Figure 3 This is a partial cross-sectional view of the fresh air outlet control device provided in Embodiment 1 of the present invention with the air outlet fully open; as shown. Figure 3As shown, preferably, the inner cylinder 10 also includes a solid part, and in the air outlet state, the area of ​​the solid part that blocks the air outlet is less than or equal to 50% of the total area of ​​the air outlet.

[0046] Specifically, in this embodiment, when the entire area of ​​the air outlet is opposite to the opening, the air outlet is only partially opposite to the opening. In other words, the size of the opening is larger than the air outlet. In another implementation, the size of the opening may be smaller than the air outlet, or the two may be the same size; or 80% of the air outlet may overlap with 70% or 90% of the opening. Similar effects can be achieved.

[0047] By setting the area of ​​the physical part that obstructs the air outlet in the air-out state to be less than or equal to 50% of the air outlet area, that is, the opening degree in the air-out state is greater than or equal to 50%, it is possible to change the ventilation area of ​​most of the cross-section of the air outlet, or to close the air outlet, thereby increasing the proportion of the air outlet area that can be changed and improving the effect of regulating the air volume.

[0048] Figure 4 This is a partial cross-sectional view of the fresh air outlet control device provided in Embodiment 1 of the present invention with the air outlet closed in the inner cylinder 10; Figure 5 This is a partial cross-sectional view of the fresh air outlet control device provided in Embodiment 1 of the present invention with the air outlet portion of the inner cylinder 10 open; as shown. Figure 1 , Figures 3-5 As shown, preferably, the air outlet includes a first air outlet 21 and a second air outlet 22, the lower edge of the first air outlet 21 is higher than the lower edge of the second air outlet 22, and the opening includes a first opening 11 and a second opening 12, the lower edge of the first opening 11 is higher than the lower edge of the second opening 12, the first opening 11 is used to control the overlapping area of ​​the first air outlet 21 and the second opening 12 is used to control the overlapping area of ​​the second air outlet 22 and the second opening 12.

[0049] Specifically, in this embodiment, the first air outlet 21 is a front air outlet, used to discharge air to the front of the fresh air unit through the front air outlet duct 41. The second air outlet 22 is a side air outlet, and there are two of them, used to discharge air to both sides of the fresh air unit through the side air outlet duct 42. The front air outlet is smaller in size and located on the upper part of the front surface of the outer cylinder 20. Therefore, the lower edge of the first air outlet corresponding to the first air outlet 21 is approximately located in the middle of the height direction of the inner cylinder 10. The second air outlet 22 extends from the top to the bottom of the side wall of the outer cylinder 20. Correspondingly, there is one first opening 11 and two second openings 12.

[0050] By setting a first air outlet 21 and a second air outlet 22 with different lower edge heights, as well as a first opening 11 and a second opening 12, the first opening 11 can be matched with the first air outlet 21, and the second opening 12 can be matched with the second air outlet 22. This ensures that the corresponding air outlets can open to the corresponding size, and avoids the first opening 11 and the second air outlet 22 corresponding to each other, which would block a large area of ​​the second air outlet 22 and affect the airflow, while wasting the opening area of ​​the second opening 12.

[0051] like Figures 3-5 As shown, preferably, both the inner cylinder 10 and the outer cylinder 20 are frustum-shaped, and the air outlet is trapezoidal. The two sides of the trapezoid coincide with the generatrix of the outer cylinder 20, and the opening can coincide with the entire area of ​​the air outlet.

[0052] In this embodiment, both the first air outlet 21 and the second air outlet 22 are trapezoidal. The first opening 11 and the second opening 12 are also trapezoidal.

[0053] By setting the air outlet to a trapezoidal shape, the overlapping area of ​​the air outlet and the corresponding opening, i.e. the effective air outlet area, can be linearly related to the rotation angle of the inner cylinder 10, which facilitates the control of the air outlet area.

[0054] like Figures 1-2 As shown, preferably, the drive mechanism further includes a transmission component, the power input end of which is connected to the drive motor 31, and the power output end of which is connected to the inner cylinder 10. The transmission component is a constant speed ratio transmission component.

[0055] By setting a constant speed ratio transmission component, the rotation of the drive motor 31 can be converted into the rotation of the inner cylinder 10 in a stable ratio. The rotation position of the inner cylinder 10 can be accurately determined simply by controlling the position of the motor output shaft of the drive motor 31, thereby improving the reliability and convenience of control.

[0056] like Figures 1-2 As shown, preferably, the transmission assembly includes a gear 32 and an arc-shaped rack 33, which mesh with each other. The gear 32 is mounted on the output shaft of the drive motor 31, and the arc-shaped rack 33 is fixedly mounted on the inner cylinder 10.

[0057] The transmission method employing gear 32 and arc-shaped rack 33 avoids loss of rotation between them, thus facilitating the reliable conversion of the drive motor 31's rotation into the inner cylinder 10's rotation. This allows for precise control of the inner cylinder 10's position, thereby improving the accuracy of the inner cylinder 10's position control. Besides the gear 32 and arc-shaped rack 33 transmission method, other implementations may also utilize a planetary gear system with a fixed planetary carrier or sun gear, or a synchronous belt pulley transmission.

[0058] like Figures 1-2 As shown, preferably, the drive motor 31 is installed on the outer side of the top wall of the outer cylinder 20, the motor output shaft of the drive motor 31 passes through the top wall of the outer cylinder 20, and the arc-shaped rack 33 is arranged on the outer side of the top wall of the inner cylinder 10.

[0059] The drive motor 31 is mounted on the outer side of the top wall of the outer cylinder 20 via a mounting ear plate. The output shaft of the drive motor 31 passes through the top wall of the outer cylinder 20, and its rotation axis is vertical. The gear 32 mounted on the drive motor is located below the top wall. An arc-shaped rack 33 is provided on the upper surface of the top wall of the inner cylinder 10, with the teeth of the arc-shaped rack 33 facing the central axis of the inner cylinder 10. Alternatively, the arc-shaped rack 33 can also be represented as a gear ring provided on the top wall of the inner cylinder 10, with teeth on its inner circumferential surface.

[0060] By placing the drive mechanism on the top wall of the outer cylinder 20, the impact of the drive motor 31 on the air outlet duct connected to the air outlet can be reduced, making it easier to arrange the air outlet duct. Moreover, it can also reduce the impact of passing through the side wall of the outer cylinder 20 on the airtightness of the outer cylinder 20, thus reducing air leakage.

[0061] In another implementation, an arc-shaped rack 33 can be provided on the outer side wall of the inner cylinder 10, with the teeth of the rack arranged radially outward. The drive motor 31 is installed on the outer side wall of the outer cylinder 20, with its shaft axis vertical, and the gear 32 passes through the outer cylinder 20. Since the outer cylinder 20 is also connected to an air outlet duct, the drive motor 31 is located in the area between adjacent air outlet ducts, and can be positioned close to one of the air outlet ducts, so that it can drive the arc-shaped rack 33 to move through the gear 32, thereby driving the inner cylinder 10 to rotate.

[0062] like Figure 4 As shown, preferably, the inner wall of the outer cylinder 20 is provided with a first limiting part 23 in the first direction of the air outlet, and the first direction is the movement direction of the inner cylinder 10 when the air outlet is opened; the outer wall of the inner cylinder 10 is provided with a second limiting part 13 in the first direction of the opening, such as... Figure 3 As shown, when the inner cylinder 10 moves in the first direction, the second limiting part 13 can abut against the first limiting part 23.

[0063] Specifically, the first direction is Figure 3 In a top-down, counter-clockwise direction, the first limiting part 23 is a protruding ridge along the generatrix of the inner wall of the outer cylinder 20, and the second limiting part 13 is a protruding ridge along the generatrix of the outer wall of the inner cylinder 10. Specifically, the second limiting part 13 is at the same height as the opening and extends along its entire height. In another implementation, the first limiting part 23 and the second limiting part 13 can also be one of a protrusion, a protruding post, or a protruding ridge, or a combination of both, as long as it ensures that during the relative rotation of the inner cylinder 10 and the outer cylinder 20, the first limiting part 23 and the second limiting part 13 can abut against each other in the circumferential direction of the inner cylinder 10 to provide a limiting function.

[0064] By providing a first limiting part 23 in the first direction of the air outlet and a second limiting part 13 in the first direction of the opening, the maximum rotation angle of the inner cylinder 10 in the first direction can be limited by the contact between the first limiting part 23 and the second limiting part 13 when the inner cylinder 10 moves in the direction of the open air outlet, so as to ensure that the movement is in place.

[0065] like Figure 4 As shown, preferably, the inner wall of the outer cylinder 20 is provided with a third limiting part 24 in the second direction of the air outlet, and the second direction is the movement direction of the inner cylinder 10 to close the air outlet; the outer wall of the inner cylinder 10 is provided with a fourth limiting part 14 in the second direction of the opening.

[0066] like Figure 4 As shown, when the inner cylinder 10 moves in the first direction, the fourth limiting part 14 can abut against the third limiting part 24, and / or, as Figure 3 As shown, when the inner cylinder 10 moves in the second direction, the second limiting part 13 can abut against the third limiting part 24.

[0067] Specifically, the second direction is Figure 3 From a top-down view in a clockwise direction, the third limiting part 24 is a protruding ridge along the generatrix of the inner wall of the outer cylinder 20, and the fourth limiting part 14 is a protruding ridge along the generatrix of the outer wall of the inner cylinder 10; in particular, the fourth limiting part 14 is at the same height as the opening and extends along its entire height. In another implementation, the third limiting part 24 and the fourth limiting part 14 can also be one of the three types of protrusions, protruding pillars, and protruding ridges, or a combination of two of them, as long as it is ensured that during the relative rotation of the inner cylinder 10 and the outer cylinder 20, the third limiting part 24 and the fourth limiting part 14 can abut against the inner cylinder 10 in the circumferential direction to play a limiting role.

[0068] By providing a third limiting part 24 in the second direction of the air outlet and a fourth limiting part 14 in the second direction of the opening, the maximum rotation angle of the inner cylinder 10 in the second direction can be limited by the contact between the third limiting part 24 and the second limiting part 13 when the inner cylinder 10 moves in the direction of closing the air outlet, or the maximum rotation angle of the inner cylinder 10 in the first direction can be limited by the third limiting part 24 and the fourth limiting part 14 when the inner cylinder 10 moves in the direction of opening the air outlet, thus ensuring that the movement is in place.

[0069] Example 2:

[0070] Embodiment 2 also provides an air conditioner, including the aforementioned fresh air outlet control device.

[0071] By installing the aforementioned fresh air outlet control device in the air conditioner, the air conditioner accordingly possesses all the advantages of the aforementioned fresh air outlet control device, which will not be elaborated upon here.

[0072] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0073] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0074] In the above embodiments, descriptions of directions such as "up" and "down" are based on the accompanying drawings.

[0075] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention.

[0076] Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fresh air outlet control device, characterized in that, The device includes a drive mechanism, an inner cylinder (10), and an outer cylinder (20). The inner cylinder (10) is rotatably disposed in the outer cylinder (20), and the rotation axis of the inner cylinder (10) relative to the outer cylinder (20) coincides with the first central axis of the inner cylinder (10). The outer cylinder (20) is provided with multiple air outlets, and the inner cylinder (10) is provided with multiple openings. The multiple openings are correspondingly provided with the multiple air outlets. The drive mechanism is connected to the inner cylinder (10) in a transmission manner. The drive mechanism includes a drive motor (31), which is used to drive the openings of the openings and the air outlets to change between 0% and 100% in the air outlet state. The inner wall of the outer cylinder (20) is provided with a first limiting part (23) in the first direction of the air outlet, and the first direction is the movement direction of the inner cylinder (10) when opening the air outlet; the outer wall of the inner cylinder (10) is provided with a second limiting part (13) in the first direction of the opening, and when the inner cylinder (10) moves along the first direction, the second limiting part (13) can abut against the first limiting part (23).

2. The fresh air outlet control device according to claim 1, characterized in that, The inner cylinder (10) also includes a solid part, and in the air outlet state, the area of ​​the solid part that blocks the air outlet is less than or equal to 50% of the total area of ​​the air outlet.

3. The fresh air outlet control device according to claim 2, characterized in that, The air outlet includes a first air outlet (21) and a second air outlet (22). The lower edge of the first air outlet (21) is higher than the lower edge of the second air outlet (22). The opening includes a first opening (11) and a second opening (12). The lower edge of the first opening (11) is higher than the lower edge of the second opening (12). The first opening (11) is used to control the overlapping area of ​​the first air outlet (21) and the first opening (11). The second opening (12) is used to control the overlapping area of ​​the second air outlet (22) and the second opening (12).

4. The fresh air outlet control device according to claim 2, characterized in that, Both the inner cylinder (10) and the outer cylinder (20) are frustum-shaped, and the air outlet is trapezoidal. The two sides of the trapezoid coincide with the generatrix of the outer cylinder (20), and the opening can coincide with the entire area of ​​the air outlet.

5. The fresh air outlet control device according to any one of claims 1-4, characterized in that, The drive mechanism also includes a transmission component, the power input end of which is connected to the drive motor (31), and the power output end of which is connected to the inner cylinder (10). The transmission component is a constant speed ratio transmission component.

6. The fresh air outlet control device according to claim 5, characterized in that, The transmission assembly includes a gear (32) and an arc rack (33), the gear (32) and the arc rack (33) meshing, the gear (32) being mounted on the output shaft of the drive motor (31), and the arc rack (33) being fixedly mounted on the inner cylinder (10).

7. The fresh air outlet control device according to claim 6, characterized in that, The drive motor (31) is installed on the outer side of the top wall of the outer cylinder (20), and the motor output shaft of the drive motor (31) passes through the top wall of the outer cylinder (20). The arc-shaped rack (33) is arranged on the outer side of the top wall of the inner cylinder (10).

8. The fresh air outlet control device according to claim 1, characterized in that, The inner wall of the outer cylinder (20) is provided with a third limiting part (24) in the second direction of the air outlet, the second direction being the movement direction of the inner cylinder (10) to close the air outlet; the outer wall of the inner cylinder (10) is provided with a fourth limiting part (14) in the second direction of the opening. When the inner cylinder (10) moves along the first direction, the fourth limiting part (14) can abut against the third limiting part (24), and / or, when the inner cylinder (10) moves along the second direction, the second limiting part (13) can abut against the third limiting part (24).

9. An air conditioner, characterized in that, The air conditioner includes the fresh air outlet control device according to any one of claims 1-8.

Images