Air conditioner indoor unit capable of removing formaldehyde

Abstract

The utility model provides an air conditioner indoor unit capable of removing formaldehyde. The air conditioner indoor unit comprises a shell, a ventilation grille and a formaldehyde removing device. An air duct is arranged in the shell. The ventilation grille is arranged in the air duct. The ventilation grille comprises a first frame and a second frame. And the formaldehyde removal device is arranged in the air duct. The formaldehyde removal device comprises a mounting frame and a formaldehyde removal module arranged in the mounting frame. The mounting frame is provided with a third frame and a fourth frame spaced from the third frame, and the formaldehyde removal module is arranged between the third frame and the fourth frame. The third frame and the first frame are located on the same straight line, and the section contour of the third frame is consistent with that of the first frame. The fourth frame and the second frame are located on the same straight line, and the section contour of the fourth frame is consistent with that of the second frame. The appearance of the mounting frame is consistent with that of the ventilation grille, so that the air conditioner indoor unit with the formaldehyde removal device is not abrupt, and the whole air conditioner indoor unit looks attractive.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an indoor unit of an air conditioner that can remove formaldehyde. Background Technology

[0002] As public awareness of the dangers of indoor formaldehyde increases, some air conditioner models now include formaldehyde removal modules in their indoor units to reduce formaldehyde levels in indoor air. However, the formaldehyde removal modules on these units are often obtrusive and clash with the overall aesthetics of the unit. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide an air conditioner indoor unit that can remove formaldehyde, which overcomes or at least partially solves the above problems, and makes the formaldehyde removal module consistent with the appearance of the air conditioner indoor unit, so that the air conditioner indoor unit looks beautiful as a whole.

[0004] Specifically, this utility model provides an indoor unit for an air conditioner that can remove formaldehyde, comprising:

[0005] A housing, wherein an air duct is provided inside the housing;

[0006] A ventilation grille is disposed within the air duct; the ventilation grille includes a first frame and a second frame spaced apart from the first frame.

[0007] A formaldehyde removal device is installed inside the air duct; the formaldehyde removal device includes an installation frame and a formaldehyde removal module installed inside the installation frame; the installation frame has a third frame and a fourth frame spaced apart from the third frame, and the formaldehyde removal module is installed between the third frame and the fourth frame;

[0008] The third border is on the same straight line as the first border, and the cross-sectional profile of the third border is consistent with the cross-sectional profile of the first border.

[0009] The fourth border is on the same straight line as the second border, and the cross-sectional profile of the fourth border is consistent with the cross-sectional profile of the second border.

[0010] Optionally, the ventilation grille further includes:

[0011] A grid plate; the grid plate is one and disposed between the first frame and the second frame, or the grid plate is multiple and disposed alternately between the first frame and the second frame;

[0012] The mounting frame also includes:

[0013] First support strips, one or more of which are disposed on one side of the formaldehyde removal module, each first support strip being disposed on an extension line of one of the grille panels; and / or

[0014] The second support bar, which may be one or more, is disposed on the other side of the formaldehyde removal module, with each second support bar disposed on an extension line of one of the grille plates.

[0015] Optionally, the outer surface of each of the first support bars, excluding the portion facing the formaldehyde removal module, is a first surface area, and the first surface area is on the same plane as the outer surface of the corresponding grille plate;

[0016] The outer surface of each second support bar, excluding the portion facing the formaldehyde removal module, is a second surface area, and the second surface area is on the same plane as the outer surface of the corresponding grille plate.

[0017] Optionally, the ventilation grille further includes:

[0018] The fifth border is connected to one end of the first border adjacent to the third border and one end of the second border adjacent to the fourth border;

[0019] A sixth border, the sixth border connecting the end of the first border away from the third border and the end of the second border away from the fourth border;

[0020] The mounting frame also includes:

[0021] The seventh border connects the end of the third border adjacent to the first border and the end of the fourth border adjacent to the second border;

[0022] The eighth border connects the end of the third border that is away from the first border and the end of the fourth border that is away from the second border;

[0023] The seventh border is symmetrically arranged with the fifth border, and / or the octagon is symmetrically arranged with the sixth border.

[0024] Optionally, the ventilation grille further includes:

[0025] A connecting strip connects the first frame and the second frame; the connecting strip is one and is disposed in the middle between the fifth frame and the sixth frame, or the connecting strip is multiple and is evenly arranged between the fifth frame and the sixth frame to divide the ventilation grille into at least two parts.

[0026] Optionally, the mounting frame further includes:

[0027] A third support strip is disposed on one side of the formaldehyde removal module; the third support strip connects the third frame and the fourth frame; there is one third support strip disposed in the middle between the seventh frame and the eighth frame, or there are multiple third support strips evenly distributed between the seventh frame and the eighth frame to divide the mounting frame into at least two parts; and / or

[0028] A fourth support strip is provided on the other side of the formaldehyde removal module; the fourth support strip connects the third frame and the fourth frame; there is one fourth support strip, provided in the middle between the seventh frame and the eighth frame, or there are multiple fourth support strips, evenly arranged between the seventh frame and the eighth frame, so as to divide the mounting frame into at least two parts;

[0029] The length of each mounting frame is equal to the length of each ventilation grille, and the number of ventilation grilles is greater than or equal to the number of mounting frames.

[0030] Optionally, the length of the mounting frame is equal to the length of each of the ventilation grilles.

[0031] Optionally, the indoor unit of the air conditioner further includes:

[0032] Heat exchangers and humidity sensors;

[0033] The heat exchanger is installed inside the air duct;

[0034] The formaldehyde removal device is located downstream of the heat exchanger; the formaldehyde removal device has an air-facing surface and an air-exit surface that are arranged opposite to each other, and the formaldehyde removal device is movably arranged so that the formaldehyde removal device has at least a first moving position and a second moving position.

[0035] When the formaldehyde removal device is in the first moving position, the angle between the windward surface and the airflow direction in the air duct is the first angle; when the formaldehyde removal device is in the second moving position, the angle between the windward surface and the airflow direction in the air duct is the second angle, and the second angle is smaller than the first angle.

[0036] The humidity sensor is configured to detect the humidity of the space where the housing is located, so as to control the formaldehyde removal device to move between the first movement position and the second movement position according to the humidity.

[0037] Optionally, the housing is provided with an air outlet extending along the length of the housing, and the air outlet is connected to the air duct;

[0038] The formaldehyde removal device is rotatably arranged about an axis parallel to the length direction of the shell;

[0039] The ventilation grille is rotatably mounted, and the ventilation grille and the formaldehyde removal device rotate around the same axis.

[0040] Optionally, the formaldehyde removal device is disposed inside the air outlet; the formaldehyde removal device is disposed at the lower part of the air outlet;

[0041] The air duct includes a main air duct section, and a first air duct section and a second air duct section connected to the front end of the main air duct section; the heat exchanger is disposed within the main air duct section;

[0042] There are two air outlets and two formaldehyde removal devices;

[0043] The two air outlets are respectively disposed on the two side walls of the housing and are respectively connected to the first air duct section and the second air duct section;

[0044] The two formaldehyde removal devices are respectively installed in the first air duct section and the second air duct section.

[0045] In the formaldehyde-removing indoor unit of this utility model, the ventilation grille located within the air duct guides the airflow or disperses it. The formaldehyde removal device is positioned within the air duct; airflow from the duct passes through the device, adsorbing formaldehyde or directly chemically decomposing it, thus reducing the formaldehyde content in the air. The third frame of the mounting frame is aligned with the first frame of the ventilation grille and has the same shape; similarly, the fourth frame of the mounting frame is aligned with the second frame of the ventilation grille and has the same shape. This ensures a harmonious appearance between the mounting frame and the ventilation grille, preventing a significant difference in appearance between the formaldehyde removal device and the ventilation grille, which could disrupt the overall aesthetics of the air conditioner and lead to user complaints about its appearance.

[0046] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0047] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0048] Figure 1 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present utility model;

[0049] Figure 2 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present utility model;

[0050] Figure 3 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present utility model;

[0051] Figure 4 This is a schematic structural diagram of a ventilation grille and a formaldehyde removal device according to an embodiment of the present invention;

[0052] Figure 5 This is an exploded view of a formaldehyde removal device according to an embodiment of the present invention. Detailed Implementation

[0053] The following reference Figures 1 to 5 This invention describes an indoor unit of an air conditioner capable of removing formaldehyde, according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0054] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] Figure 1 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention, as shown below. Figure 1 As shown, and with reference Figures 2 to 5 This utility model provides an indoor unit for an air conditioner capable of removing formaldehyde, including a housing 100, a ventilation grille 170, and a formaldehyde removal device 160. An air duct is provided within the housing 100. The ventilation grille 170 is disposed within the air duct. The ventilation grille 170 includes a first frame 171 and a second frame 172 spaced apart from the first frame 171. The formaldehyde removal device 160 is disposed within the air duct. The formaldehyde removal device 160 includes a mounting frame 161 and a formaldehyde removal module 162 disposed within the mounting frame 161. The mounting frame 161 has a third frame 163 and a fourth frame 164 spaced apart from the third frame 163. The formaldehyde removal module 162 is disposed between the third frame 163 and the fourth frame 164. The third frame 163 is on the same straight line as the first frame 171, and the cross-sectional profile of the third frame 163 is consistent with the cross-sectional profile of the first frame 171. The fourth border 164 and the second border 172 are on the same straight line, and the cross-sectional profile of the fourth border 164 is consistent with the cross-sectional profile of the second border 172.

[0058] The ventilation grille 170, located within the air duct, can guide the direction of airflow or disperse it. The formaldehyde removal device 160, also positioned within the air duct, allows airflow exiting the duct to pass through it, adsorbing formaldehyde or directly decomposing it, thus reducing the formaldehyde content in the air. The third frame 163 of the mounting frame 161 is aligned with and has the same shape as the first frame 171 of the ventilation grille 170, and the fourth frame 164 of the mounting frame 161 is aligned with and has the same shape as the second frame 172 of the ventilation grille 170. This ensures a harmonious appearance between the mounting frame 161 and the ventilation grille 170, preventing a significant difference in appearance between the formaldehyde removal device 160 and the ventilation grille, which could disrupt the overall aesthetics of the air conditioner and lead to user complaints about the appearance.

[0059] This design prevents the indoor unit of the air conditioner, which features a 160mm formaldehyde removal device, from appearing obtrusive, thus enhancing the overall aesthetics of the indoor unit and improving the user experience.

[0060] Furthermore, in some embodiments of this utility model, such as Figure 4 As shown, the ventilation grille 170 also includes a grille plate 173. There is one grille plate 173, disposed between the first frame 171 and the second frame 172, or multiple grille plates 173, arranged alternately between the first frame 171 and the second frame 172. The mounting frame 161 also includes a first support strip 167. There are one or more first support strips 167, disposed on one side of the formaldehyde removal module 162, with each first support strip 167 positioned on the extension line of one grille plate 173. Multiple grille plates are used to disperse airflow, and the support strips are used to increase the support strength of the mounting frame 161. The fact that each first support strip 167 of the mounting frame 161 is positioned on the extension line of one grille plate 173 of the ventilation grille 170 also makes the shape of the mounting frame 161 similar to that of the ventilation grille 170, preventing the indoor unit of the air conditioner with the formaldehyde removal device 160 from appearing obtrusive and affecting its appearance, thus improving the user experience.

[0061] In some other embodiments of the present invention, the mounting frame 161 further includes a second support bar, which may be one or more, and is disposed on the other side of the formaldehyde removal module 162. Each second support bar is disposed on the extension line of a grid plate 173.

[0062] In some other embodiments of this utility model, the mounting frame 161 further includes a first support strip 167 and a second support strip. There are one or more first support strips 167, disposed on one side of the formaldehyde removal module 162, with each first support strip 167 positioned on the extension line of a grille plate 173. There are one or more second support strips, disposed on the other side of the formaldehyde removal module 162, with each second support strip positioned on the extension line of a grille plate 173.

[0063] Furthermore, in some embodiments of this utility model, such as Figure 5 As shown, the outer surface of each first support strip 167, excluding the portion facing the formaldehyde removal module 162, is a first surface region 168, and the first surface region 168 is on the same plane as the outer surface of the corresponding grille plate 173. The outer surface of each second support strip, excluding the portion facing the formaldehyde removal module 162, is a second surface region, and the second surface region is on the same plane as the outer surface of the corresponding grille plate 173.

[0064] The first surface area 168 of each first support bar 167 of the mounting frame 161 is on the same surface as the outer surface of the corresponding grille plate 173 of the ventilation grille 170. Alternatively, the second surface area of ​​each second support bar of the mounting frame 161 is on the same surface as the outer surface of the corresponding grille plate 173 of the ventilation grille 170. This also makes the shape of the mounting frame 161 and the ventilation grille 170 similar, so as not to affect the appearance of the indoor unit of the air conditioner with the formaldehyde removal device 160, and improve the user experience.

[0065] Furthermore, in some embodiments of this utility model, such as Figure 4 As shown, the ventilation grille 170 also includes a fifth frame 174 and a sixth frame 175. The fifth frame 174 connects one end of the first frame 171 adjacent to the third frame 163 and one end of the second frame 172 adjacent to the fourth frame 164. The sixth frame 175 connects one end of the first frame 171 away from the third frame 163 and one end of the second frame 172 away from the fourth frame 164. The mounting frame 161 also includes a seventh frame 165 and an eighth frame 166. The seventh frame 165 connects one end of the third frame 163 adjacent to the first frame 171 and one end of the fourth frame 164 adjacent to the second frame 172. The eighth frame 166 connects one end of the third frame 163 away from the first frame 171 and one end of the fourth frame 164 away from the second frame 172. The seventh frame 165 is symmetrically arranged with the fifth frame 174, or the eighth frame and the sixth frame 175 are symmetrically arranged.

[0066] The fifth frame 174, the sixth frame 175, the first frame 171, and the second frame 172 together form the outer frame of the ventilation grille 170, improving its strength. The seventh frame 165, the eighth frame 166, the third frame 163, and the fourth frame 164 together form the outer frame of the mounting frame, further enhancing installation strength. The seventh frame 165 is symmetrically positioned with the fifth frame 174, or vice versa, ensuring that the mounting frame 161 closely resembles the shape of the ventilation grille 170. This avoids affecting the appearance of the indoor unit of the air conditioner with the formaldehyde removal device 160, improving the user experience.

[0067] In some embodiments of this utility model, the seventh border 165 and the fifth border 174 are symmetrically arranged, and the eighth border and the sixth border 175 are symmetrically arranged.

[0068] In some embodiments of this utility model, such as Figure 4 As shown, the ventilation grille 170 also includes a connecting strip 176. The connecting strip 176 connects the first frame 171 and the second frame 172. There is only one connecting strip 176, which is located in the middle between the fifth frame 174 and the sixth frame 175. The connecting strip 176 acts as a reinforcing rib, which improves the support strength of the first frame 171 and the second frame 172, and further makes the ventilation grille 170 more stable.

[0069] In other embodiments of this utility model, such as Figure 4 As shown, there are multiple connecting strips 176, evenly arranged between the fifth frame 174 and the sixth frame 175, to divide the ventilation grille 170 into at least two parts. The multiple connecting strips 176, compared to a single connecting strip 176, significantly increase the support strength of the first frame 171 and the second frame 172, further making the ventilation grille 170 more stable.

[0070] In some embodiments of this utility model, the mounting frame 161 further includes a third support strip, which is disposed on one side of the formaldehyde removal module 162. The third support strip connects the third frame 163 and the fourth frame 164. There is only one third support strip, which is disposed in the middle between the seventh frame 165 and the eighth frame 166.

[0071] The third support bar acts as a reinforcing rib, making the support strength of the third frame 163 and the fourth frame 164 better, and further making the mounting frame 161 more stable.

[0072] In some other embodiments of this utility model, there are multiple third support bars, evenly arranged between the seventh frame 165 and the eighth frame 166, to divide the mounting frame 161 into at least two parts. The length of each mounting frame 161 is equal to the length of each ventilation grille 170, and the number of ventilation grilles 170 is greater than or equal to the number of mounting frames 161. Compared to a single third support bar, multiple third support bars increase the support strength of the third frame 163 and the fourth frame 164, further making the mounting frame 161 more stable. The length of each mounting frame 161 is equal to the length of each ventilation grille 170, making the overall appearance of the mounting frame 161 similar to that of each ventilation grille 170, and similarly, making the formaldehyde removal device 160 more harmonious with the ventilation grilles 170 in overall appearance, without appearing abrupt.

[0073] In some embodiments of this utility model, the mounting frame 161 further includes a fourth support strip, which is disposed on the other side of the formaldehyde removal module 162. The fourth support strip connects the third frame 163 and the fourth frame 164. There is only one fourth support strip, disposed in the middle between the seventh frame 165 and the eighth frame 166.

[0074] In some other embodiments of this utility model, there are multiple fourth support bars, evenly arranged between the seventh frame 165 and the eighth frame 166, to divide the mounting frame 161 into at least two parts. The length of each mounting frame 161 is equal to the length of each ventilation grille 170, and the number of ventilation grilles 170 is greater than or equal to the number of mounting frames 161.

[0075] In some embodiments of this utility model, such as Figure 5 As shown, the indoor unit of the air conditioner also includes a drive unit 180. The drive unit 180 is connected to the formaldehyde removal device 160 and is configured to drive the formaldehyde removal device 160 to rotate.

[0076] In some embodiments of this utility model, such as Figure 4 As shown, the length of the mounting frame 161 is equal to the length of each ventilation grille 170.

[0077] In some embodiments of this utility model, such as Figures 2 to 3As shown, the indoor unit of the air conditioner also includes a heat exchanger 190 and a humidity sensor. The heat exchanger 190 is disposed within an air duct. A formaldehyde removal device 160 is located downstream of the heat exchanger 190. The formaldehyde removal device 160 has an opposing air-facing surface and an air-discharge surface, and is movably disposed such that it has at least a first moving position and a second moving position. When the formaldehyde removal device 160 is in the first moving position, the angle between the air-facing surface and the airflow direction within the air duct is a first angle. When the formaldehyde removal device 160 is in the second moving position, the angle between the air-facing surface and the airflow direction within the air duct is a second angle, which is smaller than the first angle. The humidity sensor is configured to detect the humidity of the space where the housing 100 is located, so as to control the movement of the formaldehyde removal device 160 between the first and second moving positions based on the humidity.

[0078] The formaldehyde removal device 160 is installed inside the air duct. Airflow from the duct passes through the formaldehyde removal device 160, where formaldehyde in the airflow is adsorbed or directly chemically decomposed, thus reducing the formaldehyde content in the air. Furthermore, since the formaldehyde removal device 160 is located downstream of the heat exchanger, cold air converges around it during cooling, easily forming condensation. The movable arrangement of the formaldehyde removal device 160 not only improves the efficiency of formaldehyde removal but also helps eliminate condensation on it. A humidity sensor is used to detect air humidity. When the air humidity reaches 80%, condensation easily forms around the formaldehyde removal module 162. At this time, the formaldehyde removal device 160 can be actively controlled to move between a first and a second movement position based on the detected air humidity to eliminate condensation. For example, as... Figure 3 As shown, when the formaldehyde removal device 160 is in the first moving position, the angle between the windward surface and the airflow direction in the duct can be a right angle. At this time, the airflow blows directly towards the windward surface, allowing the formaldehyde removal device 160 to contact the airflow with the maximum area, which is beneficial for improving the efficiency of formaldehyde removal. When condensation appears on the formaldehyde removal device 160, such as... Figure 2 As shown, the formaldehyde removal device 160 can be rotated to the second rotation position. At this time, the windward side can be parallel to the airflow direction in the duct. The airflow at the location of the formaldehyde removal device 160 increases, and the condensation problem is solved.

[0079] In some embodiments of this invention, the air outlet extends along the length of the housing 100. The formaldehyde removal device 160 is rotatably disposed about an axis parallel to the length of the housing 100. The ventilation grille 170 is rotatably disposed, and the ventilation grille 170 and the formaldehyde removal device 160 rotate about the same axis.

[0080] The ventilation grille 170 and the formaldehyde removal device 160 are rotatably arranged around an axis parallel to the length direction of the housing 100, which can reduce the rotation space of the ventilation grille 170 and the formaldehyde removal device 160, so that the housing 100 can be made smaller.

[0081] In some embodiments of this utility model, such as Figure 1 As shown, the housing 100 has a vertically extending air outlet that connects to the air duct. A formaldehyde removal device 160 is located inside the air outlet. The formaldehyde removal device 160 is positioned at the lower part of the air outlet. Since formaldehyde is denser than air, positioning the formaldehyde removal device 160 at the lower part of the air outlet is more effective in eliminating formaldehyde.

[0082] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the air duct includes a main air duct section 130, and a first air duct section 110 and a second air duct section 120 connected to the front end of the main air duct section 130. A heat exchanger 190 is disposed within the main air duct section 130. There are two air outlets and two formaldehyde removal devices 160. The two air outlets are respectively disposed on the two side walls of the housing 100 and respectively connected to the first air duct section 110 and the second air duct section 120. The two formaldehyde removal devices 160 are respectively disposed within the first air duct section 110 and the second air duct section 120.

[0083] The two air outlets are designated as outlet 101 and outlet 102. Airflow from the main duct section 130 passes through the first duct section 110 and the second duct section 120, and exits from the first outlet 101 corresponding to the first duct section 110 and the second outlet 102 corresponding to the second duct section 120, thus expanding the lateral airflow angle of the indoor unit. Two formaldehyde removal devices 160 are respectively installed within the first duct section 110 and the second duct section 120, improving the efficiency of formaldehyde removal.

[0084] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the indoor unit of the air conditioner also includes a swivel assembly. The swivel assembly 150 is disposed inside the air outlet and is located inside the formaldehyde removal device 160. The swivel assembly 150 includes multiple swivel blades for vertical airflow. The multiple swivel blades for vertical airflow guide the vertical flow direction of the airflow within the air duct.

[0085] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An indoor unit for an air conditioner that can remove formaldehyde, characterized in that, include: A housing, wherein an air duct is provided inside the housing; A ventilation grille is disposed within the air duct; the ventilation grille includes a first frame and a second frame spaced apart from the first frame. A formaldehyde removal device is installed inside the air duct; the formaldehyde removal device includes an installation frame and a formaldehyde removal module installed inside the installation frame; the installation frame has a third frame and a fourth frame spaced apart from the third frame, and the formaldehyde removal module is installed between the third frame and the fourth frame; The third border is on the same straight line as the first border, and the cross-sectional profile of the third border is consistent with the cross-sectional profile of the first border. The fourth border is on the same straight line as the second border, and the cross-sectional profile of the fourth border is consistent with the cross-sectional profile of the second border.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The ventilation grille also includes: A grid plate; the grid plate is one and disposed between the first frame and the second frame, or the grid plate is multiple and disposed alternately between the first frame and the second frame; The mounting frame also includes: First support strips, one or more of which are disposed on one side of the formaldehyde removal module, each first support strip being disposed on an extension line of one of the grille panels; and / or The second support bar, which may be one or more, is disposed on the other side of the formaldehyde removal module, with each second support bar disposed on an extension line of one of the grille plates.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The outer surface of each first support bar, excluding the portion facing the formaldehyde removal module, is a first surface area, and the first surface area is on the same plane as the outer surface of the corresponding grille plate. The outer surface of each second support bar, excluding the portion facing the formaldehyde removal module, is a second surface area, and the second surface area is on the same plane as the outer surface of the corresponding grille plate.

4. The indoor unit of the air conditioner according to claim 1, characterized in that, The ventilation grille also includes: The fifth border is connected to one end of the first border adjacent to the third border and one end of the second border adjacent to the fourth border; A sixth border, the sixth border connecting the end of the first border away from the third border and the end of the second border away from the fourth border; The mounting frame also includes: The seventh border connects the end of the third border adjacent to the first border and the end of the fourth border adjacent to the second border; The eighth border connects the end of the third border that is away from the first border and the end of the fourth border that is away from the second border; The seventh border is symmetrically arranged with the fifth border, and / or the octagon is symmetrically arranged with the sixth border.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The ventilation grille also includes: A connecting strip connects the first frame and the second frame; the connecting strip is one and is disposed in the middle between the fifth frame and the sixth frame, or the connecting strip is multiple and is evenly arranged between the fifth frame and the sixth frame to divide the ventilation grille into at least two parts.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The mounting frame also includes: A third support strip is disposed on one side of the formaldehyde removal module; the third support strip connects the third frame and the fourth frame; there is one third support strip disposed in the middle between the seventh frame and the eighth frame, or there are multiple third support strips evenly distributed between the seventh frame and the eighth frame to divide the mounting frame into at least two parts; and / or A fourth support strip is provided on the other side of the formaldehyde removal module; the fourth support strip connects the third frame and the fourth frame; there is one fourth support strip, provided in the middle between the seventh frame and the eighth frame, or there are multiple fourth support strips, evenly arranged between the seventh frame and the eighth frame, so as to divide the mounting frame into at least two parts; The length of each mounting frame is equal to the length of each ventilation grille, and the number of ventilation grilles is greater than or equal to the number of mounting frames.

7. The indoor unit of the air conditioner according to claim 5, characterized in that, The length of the mounting frame is equal to the length of each ventilation grille.

8. The indoor unit of the air conditioner according to claim 1, characterized in that, Also includes: Heat exchangers and humidity sensors; The heat exchanger is installed inside the air duct; The formaldehyde removal device is located downstream of the heat exchanger; The formaldehyde removal device has an air-facing surface and an air-exhausting surface that are arranged opposite to each other, and the formaldehyde removal device is movably arranged so that the formaldehyde removal device has at least a first moving position and a second moving position. When the formaldehyde removal device is in the first moving position, the angle between the windward surface and the airflow direction in the air duct is the first angle; when the formaldehyde removal device is in the second moving position, the angle between the windward surface and the airflow direction in the air duct is the second angle, and the second angle is smaller than the first angle. The humidity sensor is configured to detect the humidity of the space where the housing is located, so as to control the formaldehyde removal device to move between the first movement position and the second movement position according to the humidity.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The housing is provided with an air outlet extending along the length of the housing, and the air outlet is connected to the air duct; The formaldehyde removal device is rotatably arranged about an axis parallel to the length direction of the shell; The ventilation grille is rotatably mounted, and the ventilation grille and the formaldehyde removal device rotate around the same axis.

10. The indoor unit of the air conditioner according to claim 9, characterized in that, The formaldehyde removal device is installed inside the air outlet; the formaldehyde removal device is installed at the lower part of the air outlet; The air duct includes a main air duct section, and a first air duct section and a second air duct section connected to the front end of the main air duct section; the heat exchanger is disposed within the main air duct section; There are two air outlets and two formaldehyde removal devices; The two air outlets are respectively disposed on the two side walls of the housing and are respectively connected to the first air duct section and the second air duct section; The two formaldehyde removal devices are respectively installed in the first air duct section and the second air duct section.

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