Rack connecting plate for rotating air deflector, air deflector and air conditioner indoor unit

Abstract

This application relates to the field of air conditioning technology and discloses a rack and pinion connecting plate for rotating air guide vanes, including a rack portion and a connecting portion for connecting with the air guide vane. The rack portion includes: a first rack extending in an arc shape towards one end of the rack and pinion connecting plate; and a second rack extending in an arc shape towards the other end of the rack and pinion connecting plate, wherein a gap is provided between the first rack and the second rack. Using the rack and pinion connecting plate of this application, a single gear drive device can achieve large-angle rotation of the air guide vane, effectively simplifying the motion mechanism, reducing development costs and equipment failure probability, and improving the reliability of the air guide vane's movement. This application also discloses an air guide vane and an air conditioning indoor unit.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, for example to a rack and pinion connecting plate for a rotating air guide plate, an air guide plate, and an indoor air conditioning unit. Background Technology

[0002] To achieve a wider airflow angle adjustment, existing air conditioner air deflectors typically employ the following two solutions:

[0003] The first approach involves leaving a large gap between the air guide plate and the air conditioner to allow the plate to rotate. However, this approach is limited by the air duct, restricts the plate's rotation, and the large gap affects aesthetics and does not prevent dust accumulation, leading to dust buildup inside the air conditioning duct and failing to meet health requirements.

[0004] The second approach uses a robotic arm-type large guide plate. A motion mechanism moves the entire guide plate out of the unit, and then the guide plate rotates along its connecting axis to the robotic arm under the control of the motion mechanism, allowing for large-angle rotation. However, this approach requires at least two sets of motion mechanisms to extend and rotate the guide plate. The increased number of mechanisms raises the cost of the air conditioner, and also increases the probability of malfunction, resulting in lower reliability of the guide plate's movement. Summary of the Invention

[0005] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0006] This disclosure provides a rack and pinion connecting plate for a rotating air guide plate, an air guide plate, and an indoor air conditioning unit to solve the problem of complex large-angle rotation drive structure for the air guide plate.

[0007] In some embodiments, the rack connecting plate for rotating the air guide plate includes a rack portion and a connecting portion for connecting with the air guide plate, wherein the rack portion includes: a first rack extending in an arc shape to one end of the rack connecting plate; and a second rack extending in an arc shape to the other end of the rack connecting plate, wherein a gap is provided between the first rack and the second rack.

[0008] Optionally, the rack portion has an outwardly opening U-shaped structure, the U-shaped structure including a bottom, and a first side portion and a second side portion extending outward along the bottom, the first rack being disposed on the first side portion, and the second rack being disposed on the second side portion.

[0009] Optionally, the rack connecting plate further includes a first guide structure, which cooperates with the air guide plate bracket to guide the rotation of the rack connecting plate and the air guide plate.

[0010] In some embodiments, the air guide plate includes a rack and pinion connecting plate for rotating the air guide plate as described above.

[0011] Optionally, the air guide plate further includes an air guide plate body, wherein the rack connecting plate is installed on the inner side wall of the air guide plate body.

[0012] Optionally, the rack connecting plate includes: a first rack connecting plate disposed at a first end of the inner sidewall of the air guide plate body; and a second rack connecting plate disposed at a second end of the inner sidewall of the air guide plate body.

[0013] In some embodiments, the indoor unit of the air conditioner includes: an air guide plate as described above.

[0014] Optionally, the indoor unit of the air conditioner further includes: a gear located between the first rack and the second rack, the gear being capable of driving the first rack or the second rack to rotate; and a motor for driving the gear to rotate; wherein, when the gear drives the first rack, the air guide plate opens upward; and when the gear drives the second rack, the air guide plate opens downward.

[0015] Optionally, a portion of the circumferential surface of the gear is provided with teeth.

[0016] Optionally, the indoor unit of the air conditioner further includes: an air guide plate bracket; and a second guide structure, installed on the air guide plate bracket and slidingly or rollingly engaged with the first guide structure, for guiding the rotation of the rack connecting plate and the air guide plate.

[0017] The rack and pinion connecting plate, air guide plate, and air conditioner indoor unit for rotating air guide plates provided in this disclosure can achieve the following technical effects:

[0018] The rack connecting plate of this application is connected to the air guide plate through the connecting part. The rack part is engaged with the gear in the indoor unit of the air conditioner for driving the rack to rotate, so as to drive the air guide plate to perform an upward opening action or a downward opening action.

[0019] This application integrates the first rack and the second rack on the rack portion of the rack connecting plate, and sets a gap between the first rack and the second rack so that the gear can be set between the first rack and the second rack, and the rack connecting plate can rotate about the arc center of the first rack and the arc center of the second rack respectively.

[0020] Because the first rack extends in an arc towards one end of the rack connecting plate, and the second rack extends in an arc towards the other end of the rack connecting plate, with the first ends of both racks located in the lower middle part of the rack connecting plate, and the center of the arc of the first rack located below one side of the rack connecting plate, and the center of the arc of the second rack located below the other side of the rack connecting plate, the rack connecting plate and the air guide plate connected to it can rotate at a large angle, achieving large-area air delivery, compared to a structure where the center of rotation is located in the middle.

[0021] This application uses a single gear drive device to achieve large-angle rotation of the air guide plate, which effectively simplifies the motion mechanism, reduces development costs and equipment failure probability, and improves the reliability of the air guide plate movement.

[0022] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0023] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0024] Figure 1 This is a schematic diagram of the structure of a rack and pinion connecting plate provided in an embodiment of this disclosure;

[0025] Figure 2 This is a schematic diagram of another rack and pinion connecting plate provided in an embodiment of this disclosure;

[0026] Figure 3 This is a schematic diagram of the structure of the air guide plate provided in the embodiment of this disclosure;

[0027] Figure 4 This is a schematic diagram of the structure of an air conditioner indoor unit provided in an embodiment of this disclosure;

[0028] Figure 5 This is a schematic diagram of the structure of the indoor unit of the air conditioner when the air guide plate is in the upward opening state according to the embodiment of this disclosure;

[0029] Figure 6 This is a schematic diagram of the structure of the indoor unit of the air conditioner when the air guide plate is in a downward opening state, according to an embodiment of this disclosure.

[0030] Figure 7 This is a schematic diagram of the structure of the air guide plate bracket provided in the embodiments of this disclosure;

[0031] Figure 8This is a schematic diagram of the structure of a gearbox provided in an embodiment of this disclosure;

[0032] Figure 9 This is a schematic diagram of another gearbox provided in an embodiment of this disclosure.

[0033] Figure label:

[0034] 10: Gear; 20: Rack connecting plate; 21: Rack section; 211: First side; 212: Second side; 213: Bottom; 214: First rack; 215: Second rack; 22: Connecting part; 221: Connecting plate body; 2211: First guide structure; 222: Connector; 30: Air guide plate; 31: Air guide plate body; 40: Air guide plate bracket; 41: Second guide structure; 50: Motor; 60: Gear box; 61: Motor receiving cavity; 62: Connecting plate mounting area; 63: Mounting opening; 64: Rotation opening. Detailed Implementation

[0035] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0036] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0037] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0038] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0039] Unless otherwise stated, the term "multiple" means two or more.

[0040] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0041] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0042] The upward opening state of this application refers to the state in which the air guide plate 30 is in the upward opening state, and the downward opening state refers to the state in which the air guide plate 30 is in the downward opening state.

[0043] In this application, the upward opening action refers to the action of making the air guide plate 30 open upward, and the downward opening action refers to the action of making the air guide plate 30 open downward.

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0045] Combination Figure 1-2 As shown, this embodiment of the present disclosure provides a rack connecting plate 20 for a rotating air guide plate 30, including a rack portion 21 and a connecting portion 22.

[0046] The rack section 21 includes a first rack 214 and a second rack 215. The first rack 214 extends in an arc shape towards one end of the rack connecting plate 20; the second rack 215 extends in an arc shape towards the other end of the rack connecting plate 20, such as... Figure 1 As shown.

[0047] There is a gap between the first rack 214 and the second rack 215.

[0048] The rack and pinion connecting plate 20 can be understood as mainly comprising two parts: a rack portion 21 and a connecting portion 22. The rack portion 21 is the main component that meshes with the gear 10, and the connecting portion 22 is the main component that connects with the air guide plate 30. The first ends of the first rack 214 and the second rack 215 are both located in the lower middle part of the rack and pinion connecting plate 20. The first rack 214 extends in an arc shape towards one end of the rack and pinion connecting plate 20, and the second rack 215 extends in an arc shape towards the other end of the rack and pinion connecting plate 20. The center of the arc of the first rack 214 is located below one side of the rack and pinion connecting plate 20, and the center of the arc of the second rack 215 is located below the other side of the rack and pinion connecting plate 20. The rack connecting plate 20 can rotate around the arc center of the first rack 214 and the arc center of the second rack 215 respectively. Since the arc centers of the first rack 214 and the second rack 215 are both located on the side of the rack connecting plate 20, compared with the structure where the rotation center is located in the middle, the rack connecting plate 20 and the air guide plate 30 connected to it can rotate at a large angle to achieve large-area air delivery.

[0049] The rack and pinion connecting plate 20 for rotating the air guide plate 30 provided in this embodiment integrates a first rack 214 and a second rack 215 for rotating the air guide plate 30 in two directions onto a single rack and pinion connecting plate 20. A gear 10 for driving the rotation of the air guide plate can be installed between the first rack 214 and the second rack 215. The gear 10 can drive either the first rack 214 or the second rack 215, causing the air guide plate to open upwards or downwards. Therefore, this application can use only one drive mechanism to enable the air guide plate 30 to achieve both upward and downward opening states, perform large-angle rotation, and simultaneously close the air guide plate. Optionally, the number of gears 10 is one. The drive assembly for the air guide plate provided in this embodiment has fewer moving mechanisms, reducing the probability of air guide plate movement failure and improving the reliability of the air guide plate 30's movement.

[0050] Optionally, the rack portion 21 has an outwardly opening U-shaped structure. The U-shaped structure includes a bottom 213 and a first side portion 211 and a second side portion 212 extending outward along the bottom 213. The first rack 214 is disposed on the first side portion 211, and the second rack 215 is disposed on the second side portion 212.

[0051] This can be understood as follows: both the first rack 214 and the second rack 215 are arc-shaped structures. The teeth of both racks 214 and 215 are set on the convex surface of the arc-shaped structure, and the teeth of both racks 214 and 215 are facing the gear 10. The first end of the first rack 214 is close to the first end of the second rack 215, and the second end of the first rack 214 is far from the second end of the second rack 215. The initial position of the gear 10 is located at the bottom 213 of the U-shaped structure. When the gear 10 drives the first rack 214, the rack connecting plate 20 rotates around the arc center of the first rack 214, and the air guide plate 30 is in an upward opening state. When the gear 10 drives the second rack 215, the rack connecting plate 20 rotates around the arc center of the second rack 215, and the air guide plate 30 is in a downward opening state.

[0052] As an example, the entire circumferential surface of the gear 10 is provided with teeth, while the bottom 213 of the rack connecting plate 20 is not provided with teeth, to avoid the gear 10 and the rack part 21 getting stuck and affecting normal rotational engagement.

[0053] Optionally, the rack connecting plate further includes a first guide structure 2211, which cooperates with the air guide plate bracket 40 to guide the rotation of the rack connecting plate 20 and the air guide plate 30.

[0054] As an example, the connecting part 22 of the rack connecting plate 20 includes a connecting plate body 221 and a connector 222. A first guide structure 2211 is provided on one side of the connecting plate body 221, and a rack part 21 is installed on the other side of the connecting plate body 221. The rack part 21 is a hollow structure, and the connector 222 is installed inside the hollow structure. An opening is provided on the side of the rack part 21 near the bottom 213, through which the air guide plate 30 can pass and connect with the connector 222. The rack connecting plate 20 installs the air guide plate 30 on the air guide plate bracket 40 through the cooperation of the first guide structure 2211 and the second guide structure 41.

[0055] like Figure 1 As shown, optionally, the first rack 214 and the second rack 215 are symmetrically arranged on the rack connecting plate 20.

[0056] This can be understood as follows: the maximum arc length of the gear 10 driving the first rack 214 to move is equal to the maximum arc length of the gear 10 driving the second rack 215 to move; and the maximum opening angle of the air guide plate 30 opening upward is the same as the maximum opening angle of the air guide plate opening downward.

[0057] Combination Figure 3 This disclosure provides an air guide plate, including the aforementioned rack and pinion connecting plate 20 for rotating the air guide plate.

[0058] Optionally, the air guide plate 30 also includes an air guide plate body 31, wherein the rack and pinion connecting plate 20 is installed on the inner side wall of the air guide plate body 31 and on the windward surface of the air guide plate body 31, for connection with the air guide plate bracket 40.

[0059] As an example, the rack and pinion connecting plate 20 is detachably mounted on the air guide plate bracket 40.

[0060] Optionally, the rack connecting plate includes a first rack connecting plate and a second rack connecting plate, the first rack connecting plate being disposed at the first end of the inner sidewall of the air guide plate body 31, and the second rack connecting plate being disposed at the second end of the inner sidewall of the air guide plate body 31.

[0061] This disclosure provides an indoor air conditioning unit including the aforementioned air guide plate 30.

[0062] Optionally, the indoor unit of the air conditioner also includes a gear 10 and a motor 50. The gear 10 is located between the first rack 214 and the second rack 215, and the gear 10 can drive the first rack 214 or the second rack 215 to rotate. The motor 50 is used to drive the gear 10 to rotate. When the gear 10 drives the first rack 214, the air guide plate opens upward; when the gear drives the second rack, the air guide plate opens downward.

[0063] This can be understood as follows: gear 10 can mesh with either the first rack 214 or the second rack 215, driving either rack 214 or the second rack 215 to rotate. When gear 10 drives the first rack 214 to rotate, gear 10 and the second rack 215 are not meshed; when gear 10 drives the second rack 215 to rotate, gear 10 and the first rack 214 are not meshed. The first rack 214 is mainly used to keep the air guide plate 30 in an upward opening state, and the second rack 215 is mainly used to keep the air guide plate 30 in a downward opening state. The rack connecting plate 20 mainly plays a transmission role. Since the first rack 214 and the second rack 215 are mounted on the rack connecting plate 20, and the rack connecting plate 20 is connected to the air guide plate 30, when the first rack 214 or the second rack 215 moves under the drive of gear 10, the air guide plate 30 will also move accordingly.

[0064] As an example, both the first rack 214 and the second rack 215 are arc-shaped structures. The teeth of both racks 214 and 215 are disposed on the convex surface of the arc-shaped structure, and both teeth face the gear 10. The first end of the first rack 214 is close to the first end of the second rack 215, and the second end of the first rack 214 is far from the second end of the second rack 215. In the initial state, the gear 10 is located at the first ends of both racks 214 and 215, and meshes with both racks 214 and 215. Figure 4As shown. At this time, the air guide plate is in the closed state. When the gear 10 needs to drive the first rack 214 or the second rack 215, the gear 10 is rotated in the corresponding driving direction and disengaged from the other rack. When the air guide plate 30 needs to be closed or opened in another direction, the gear 10 is rotated in the opposite direction to the initial driving direction.

[0065] As another example, when gear 10 drives the first rack 214, the first rack 214 rotates around its own arc center, i.e., the first rotation center, and drives the air guide plate body 31 to rotate, at which point the air guide plate 30 is in an upward-opening state; when gear 10 drives the second rack 215, the second rack 215 rotates around its own arc center, i.e., the second rotation center, and drives the air guide plate body 31 to rotate, at which point the air guide plate 30 is in a downward-opening state. The first and second rotation centers can be understood as virtual axes.

[0066] Motor 50 is a bidirectional motor 50, which can drive gear 10 to rotate in both forward and reverse directions.

[0067] The following is combined Figures 4 to 6 The motion principle of the embodiments of this disclosure will be explained.

[0068] The teeth of the first rack 214 and the second rack 215 are both disposed on the convex surface of the arc-shaped structure. The first ends of the first rack 214 and the second rack 215 are both located in the lower middle part of the rack connecting plate 20. The first rack 214 extends arc-shaped towards one end of the rack connecting plate 20, and the second rack 215 extends arc-shaped towards the other end of the rack connecting plate 20. That is, the first end of the first rack 214 is close to the first end of the second rack 215, and the second end of the first rack 214 is far from the second end of the second rack 215. The arc center of the first rack 214 is located below one side of the rack connecting plate 20, and the arc center of the second rack 215 is located below the other side of the rack connecting plate 20. The rack connecting plate 20 can rotate about the arc centers of the first rack 214 and the second rack 215 respectively. The gear 10 is initially located at the first ends of the first rack 214 and the second rack 215.

[0069] Taking gear 10 as an example (with all teeth), during implementation, gear 10 initially meshes with both the first rack 214 and the second rack 215. When the air guide plate 30 needs to be in an upward opening state, gear 10 rotates in the first direction from its initial state. During this process, gear 10 disengages from the second rack 215 and begins to drive the first rack 214. At this time, the first rack 214 rotates around the first rotation center, causing the air guide plate 30 to open upward. By controlling the rotation angle of gear 10 or the displacement of gear 10 on the first rack 214, the size of the upward opening of the air guide plate 30 can be adjusted. When it is necessary to close the air guide plate 30, gear 10 rotates in the second direction, driving the rack connecting plate 20 back to its initial position via the first rack 214. Wheel 10 engages with the first ends of the first rack 214 and the second rack 215 simultaneously. When it is necessary to switch the air guide plate 30 from the upward opening state to the downward opening state, firstly, the gear 10 is rotated in the second direction to return the rack connecting plate 20 to the initial position. Then, it continues to rotate in the second direction to disengage the gear 10 from the first rack 214 and start driving the second rack 215. The second rack 215 rotates around the second rotation center as an axis, driving the air guide plate 30 to open downward. By controlling the rotation angle of the gear 10 or the displacement of the gear 10 on the second rack 215, the size of the downward opening of the air guide plate 30 can be adjusted.

[0070] Similarly, when the air guide plate 30 needs to be in a downward opening state, the gear 10 starts from its initial state and rotates in the second direction. During this process, the gear 10 disengages from the first rack 214 and begins to drive the second rack 215. At this time, the second rack 215 rotates around the second rotation center, causing the air guide plate 30 to open downward. By controlling the rotation angle of the gear 10 or the displacement of the gear 10 on the second rack 215, the size of the downward opening of the air guide plate 30 can be adjusted. When it is necessary to close the air guide plate 30, the gear 10 rotates in the first direction, and the second rack 215 drives the rack connecting plate 20 back to its initial position. When gear 10 meshes with the first ends of the first rack 214 and the second rack 215 again, when it is necessary to switch the air guide plate 30 from the downward opening state to the upward opening state, firstly, gear 10 is rotated in the first direction to return the rack connecting plate 20 to the initial position, and then it continues to rotate in the first direction to disengage gear 10 from the second rack 215 and start driving the first rack 214. The first rack 214 rotates around the first rotation center as the axis, driving the air guide plate 30 to open upward. By controlling the rotation angle of gear 10 or the displacement of gear 10 on the first rack 214, the size of the upward opening of the air guide plate 30 can be adjusted.

[0071] Optionally, when gear 10 is located on the perpendicular bisector of the line connecting the arc centers of the first rack 214 and the second rack 215, the air guide plate 30 is in a closed state, such as... Figure 4 As shown.

[0072] This can be understood as follows: since the position of gear 10 remains unchanged, when gear 10 drives the first rack 214 or the second rack 215 to rotate, the rack connecting plate 20 will also move accordingly. The line connecting the arc centers of the first rack 214 and the second rack 215 and their perpendicular bisector will also be in motion with the movement of the rack connecting plate 20. Only when the rack connecting plate 20 returns to its initial position, that is, when gear 10 is simultaneously engaged with the first rack 214 and the second rack 215, is the air guide plate 30 in the closed state. When gear 10 is engaged with only one rack, it will be in the open state. Figures 4 to 6 As shown.

[0073] Optionally, a portion of the circumferential surface of the gear 10 is provided with teeth.

[0074] This can be understood as follows: the working surface of gear 10 includes two parts: a toothed part and a toothless part.

[0075] As an example, the arc length of the toothed portion is related to the arc length of the first rack 214 and the second rack 215. The arc length of the toothed portion is less than or equal to the arc length of the first rack and the second rack. Optionally, the toothed portion of the gear 10 is provided with continuous teeth. Optionally, the area of ​​the toothless portion is greater than the area of ​​the toothed portion.

[0076] As an example, the toothed portion and the toothless portion are located on opposite sides of the working surface of the gear 10. In the initial state, the toothless portion of the gear 10 faces the gap between the first rack 214 and the second rack 215, as shown below. Figure 4 As shown, when gear 10 starts to drive the first rack 214, the toothed part meshes with the first rack 214, and the toothless part faces the second rack 215. Gear 10 does not mesh with the first rack 214 and the second rack 215 at the same time to avoid jamming.

[0077] As an example, the bottom 213 of the U-shaped structure of the rack connecting plate is not toothed. A portion of the circumferential surface of the gear 10 is toothed. The working surface of the gear 10 includes a toothed portion and a toothless portion, located on opposite sides of the working surface. Initially, the toothless portion of the gear 10 faces the bottom 213. When the gear 10 begins to drive the first rack 214, the toothed portion meshes with the first rack 214, and the toothless portion faces the second rack 215; the gear 10 does not mesh with the second rack 215. When the gear 10 begins to drive the second rack 215, the toothed portion meshes with the second rack 215, and the toothless portion faces the first rack 214; the gear 10 does not mesh with the first rack 214. The gear 10 does not simultaneously mesh with the first rack 214 and the second rack 215, thus preventing the rack connecting plate 20 from jamming.

[0078] As another example, the bottom 213 of the U-shaped structure is provided with teeth for buffering the rack engagement switching process. The working surface of the gear 10 includes a toothed part and a toothless part, which are located on both sides of the working surface of the gear 10. In the initial state, the toothless part of the gear 10 faces the bottom 213. When the gear 10 starts to drive the first rack 214, the toothed part meshes with the first rack 214, the toothless part faces the second rack 215, the gear 10 does not mesh with the second rack 215, and the air guide plate 30 is in an upward opening state. When the gear 10 starts to drive the second rack 215, the toothed part meshes with the second rack 215, the toothless part faces the first rack 214, the gear 10 does not mesh with the first rack 214, and the air guide plate 30 is in a downward opening state.

[0079] The gear 10 does not mesh with the first rack 214 and the second rack 215 at the same time, so as to avoid the rack connecting plate 20 from getting stuck.

[0080] Combination Figure 2 and Figure 7 As shown, optionally, the indoor unit of the air conditioner also includes an air guide plate bracket 40 and a second guide structure 41. The second guide structure 41 is mounted on the air guide plate bracket 40 and is in sliding or rolling engagement with the first guide structure 2211, for guiding the rotation of the rack connecting plate 20 and the air guide plate 30.

[0081] It can be understood that when gear 10 drives the first rack 214 or the second rack 215 to rotate, the rack connecting plate 20 and the air guide plate 30 will also rotate accordingly. In order to prevent the movement trajectory of the rack connecting plate 20 and the air guide plate 30 from deviating and affecting the normal use of the air conditioner, a mutually cooperating guide structure is set on the rack connecting plate 20 and the air guide plate bracket 40 to guide the rotation of the rack connecting plate 20 and the air guide plate 30, and to install the rack connecting plate 20 and the air guide plate body 31 on the indoor unit of the air conditioner.

[0082] As an example, the first guide structure 2211 is a slider or ball, and the second guide structure 41 is a slide rail. Alternatively, the first guide structure 2211 can be a slide rail, and the second guide structure 41 can be a slider or ball.

[0083] Combination Figure 8 , Figure 9 As shown, optionally, the indoor unit of the air conditioner also includes a gear box 60. The gear box 60 is provided with a motor receiving cavity 61 and a connecting plate mounting area 62. The gear box 60 has an open structure, including a mounting opening 63 and a rotating opening 64. The mounting opening 63 is used for the rack connecting plate 20 to cooperate with the air guide plate bracket 40, and the rotating opening 64 is used for the rack connecting plate 20 to drive the air guide plate 30 to rotate.

[0084] This can be understood as follows: during installation, the mounting opening 63 of the gear box 60 faces the air guide plate bracket 40. The gear box 60 is fixed to the air guide plate bracket 40 by a connector. The motor 50 is installed in the motor receiving cavity 61 and is connected to the gear 10. The gear 10 meshes with the first rack 214 or the second rack 215 on the rack connecting plate 20. The rack connecting plate 20 is rotatably installed in the connecting plate mounting area 62. The rack connecting plate 20 is installed on the air guide plate bracket 40 through the first guide structure 2211 to ensure a stable connection between the gear 10 and the rack connecting plate 20.

[0085] This application provides a rack and pinion connecting plate, an air guide plate, and an air conditioning indoor unit that can be driven by a set of driving devices to rotate the air guide plate 30 at a large angle.

[0086] This application integrates a first rack 214 for opening the air guide plate 30 upwards and a second rack 215 for opening the air guide plate 30 downwards onto a rack connecting plate 20. A gear 10 can drive either the first rack 214 or the second rack 215. When the gear 10 drives the first rack 214, the air guide plate 30 is in an upward-opening state; when the gear 10 drives the second rack 215, the air guide plate 30 is in a downward-opening state. Therefore, this application can achieve both upward and downward opening states for the air guide plate 30 using only one drive mechanism, while also enabling the air guide plate 30 to be closed. The drive assembly for the air guide plate and the air conditioner indoor unit provided in this disclosure have fewer moving mechanisms for driving the air guide plate, reducing the probability of air guide plate movement failure and improving the reliability of the air guide plate 30 movement.

[0087] Furthermore, since the air guide plate 30 is connected to the rack and pinion connecting plate 20, the air guide plate 30 can achieve large-angle rotation through a set of drive mechanisms with the cooperation of the gear 10 and the rack and pinion connecting plate 20, without producing obvious gaps that would affect the use of the air conditioner.

[0088] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A rack and pinion connecting plate for a rotating air guide plate, characterized in that, It includes a rack portion (21) and a connecting portion (22) for connecting with the air guide plate (30), wherein the rack portion (21) includes: The first rack (214) extends in an arc shape toward one end of the rack connecting plate (20); and, The second rack (215) extends in an arc shape to the other end of the rack connecting plate (20); A gap is provided between the first rack (214) and the second rack (215). The rack portion (21) has an outwardly opening U-shaped structure. The U-shaped structure includes a bottom (213) and a first side portion (211) and a second side portion (212) extending outward along the bottom (213). The first rack (214) is disposed on the first side portion (211), and the second rack (215) is disposed on the second side portion (212). The arc center of the first rack (214) is located below one side of the rack connecting plate, and the arc center of the second rack (215) is located below the other side of the rack connecting plate. The teeth of the first rack (214) and the second rack (215) are both set towards the gear (10). The first end of the first rack (214) is close to the first end of the second rack (215), and the second end of the first rack (214) is far away from the second end of the second rack (215). The initial position of the gear (10) is located at the bottom (213) of the U-shaped structure.

2. The rack connecting plate according to claim 1, characterized in that, Also includes: The first guide structure (2211), in conjunction with the air guide plate bracket (40), is used to guide the rotation of the rack connecting plate (20) and the air guide plate (30).

3. An air guide plate, characterized in that, Includes the rack and pinion connecting plate for rotating air guides as described in claim 1 or 2.

4. The air guide plate according to claim 3, characterized in that, Also includes: Air deflector body (31), The rack connecting plate (20) is installed on the inner side wall of the air guide plate body (31).

5. The air guide plate according to claim 4, characterized in that, The rack connecting plate (20) includes: The first rack connecting plate is disposed at the first end of the inner side wall of the air guide plate body (31); and, The second rack connecting plate is disposed at the second end of the inner side wall of the air guide plate body (31).

6. An indoor unit for an air conditioner, characterized in that, Includes the air guide plate as described in any one of claims 3 to 5.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, Also includes: A gear (10) is located between the first rack (214) and the second rack (215), and the gear (10) can drive the first rack (214) or the second rack (215) to rotate; An electric motor (50) is used to drive the gear (10) to rotate; When the gear (10) drives the first rack (214), the air guide plate (30) opens upward; when the gear (10) drives the second rack (215), the air guide plate (30) opens downward.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The gear (10) has teeth on a portion of its circumferential surface.

9. The indoor unit of the air conditioner according to claim 6, characterized in that, Also includes: Air guide plate bracket (40); The second guide structure (41) is installed on the air guide plate bracket (40) and slides or rolls with the first guide structure (2211) to guide the rotation of the rack connecting plate (20) and the air guide plate (30).

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