Air sweeping base and air conditioner indoor unit

Abstract

The utility model provides an air sweeping base and an indoor unit of an air conditioner, relates to the technical field of air conditioners, and aims to solve the problem of more parts for shielding counter bores. The wind sweeping base comprises a base body and a cover plate rotationally connected to the base body, the base body is used for being connected with the wind sweeping blades, the cover plate is used for covering the counter bore of the middle frame, and the cover plate is rotationally arranged relative to the base body along the edge of one side of the base body. The number of parts can be reduced, and operation steps in the production process can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and more specifically, to a swing base and an indoor air conditioner unit. Background Technology

[0002] In the prior art, the middle frame of a wall-mounted air conditioner indoor unit is usually fixed by screws at the bottom of the middle frame into threaded holes at the bottom of the base. To accommodate the screws, countersunk holes are usually provided at the bottom of the middle frame. To cover the countersunk holes for aesthetic purposes and to reduce the impact on the airflow of the wall-mounted air conditioner indoor unit, screw caps are usually provided to cover the countersunk holes.

[0003] In some existing technologies, a separate screw cap is used to cover the countersunk hole. However, using a separate screw cap requires an additional step during assembly, increasing man-hours and production costs. Furthermore, when repairing or maintaining the indoor unit of a wall-mounted air conditioner, if it is necessary to separate the bottom of the middle frame from the base, the screw cap must be removed from the countersunk hole. Since the screw cap is small, it is easily lost, leaving the countersunk hole exposed after the repair or maintenance process.

[0004] like Figure 20 and Figure 21 As shown, in some existing technologies, the screw cap 1 and the middle frame 2 are fitted together by rotating pins on the left and right sides of the lower end of the screw cap 1. The rotating pins serve as fulcrums for the screw cap to rotate. There is a small square protrusion on both sides of the upper end of the screw cap 1. The small square protrusion is in an interference fit with the mounting groove 21 on the middle frame 2, so that the screw cap is forcibly stuck in the mounting groove 21.

[0005] During assembly, the screw cap 1 needs to be forcibly pressed into the countersunk hole, making assembly difficult. Coupled with the precision limitations of the injection mold itself and the influence of the injection molding process, the following situations arise: either the screw cap 1 cannot be installed, or once installed, it is very difficult to remove. For the screw cap 1, which is easy to assemble, the fit clearance with the middle frame 2 is often slightly large, severely affecting the product's aesthetic appearance. Furthermore, to prevent it from falling off during transportation, adhesive tape is needed to connect the screw cap 1, which not only affects the appearance but also increases material and operational costs. However, making it with a very small gap makes disassembly and assembly difficult, making it hard to balance ease of installation and reliability. Utility Model Content

[0006] The first objective of this utility model is to provide a sweeping base to solve the technical problem of having too many parts that obstruct the countersunk hole in existing systems.

[0007] The first aspect of this utility model provides a sweeping base, which includes a base body and a cover plate rotatably connected to the base body. The base body is used to connect sweeping blades, and the cover plate is used to cover the countersunk hole of the middle frame. The cover plate is rotatably disposed relative to the base body along one side edge of the base body.

[0008] The beneficial effects of this utility model's air-sweeping base are:

[0009] By rotatably connecting the cover plate used to cover the countersunk hole of the middle frame to the base body, the cover plate can be set together with the base body. When the air sweeping assembly base body is installed onto the base, the cover plate can be positioned for easy covering of the countersunk hole. Then, the cover plate can be placed on the countersunk hole, eliminating the need to use a separate, smaller cover plate. This reduces the number of parts and the number of operational steps in the production process, while also facilitating the management of parts involved in air conditioning production. Furthermore, if it is necessary to separate the bottom of the middle frame from the base body, the cover plate can be folded relative to the base body to expose the countersunk hole, making it easy to unscrew threaded fasteners such as screws or bolts in the countersunk hole. Moreover, after folding the cover plate relative to the base body, the cover plate will not interfere with the movement of the middle frame.

[0010] In an optional technical solution, the cover plate is connected to the base body through a thinning portion. The thickness of the thinning portion is smaller than a portion of the base body connected to the thinning portion, and also smaller than the portion of the cover plate connected to the thinning portion.

[0011] By incorporating a thinning section, the thickness of the thinning section is less than the thickness of the areas adjacent to it on both the base body and the cover plate. This results in the thinning section being the area with lower stiffness in its surrounding region. When the cover plate is subjected to force, the deformation of the thinning section is significantly greater than that of its surrounding area, which helps control the folding position of the cover plate and the base body. Furthermore, by incorporating the thinning section, when the cover plate folds upward relative to the base body, the pressure on the upper area of ​​the thinning section is reduced, while the tensile force on the lower area is reduced, thus preventing localized cracking in the thinning section.

[0012] In an optional technical solution, the lower side of the thinned portion is thinned and recessed.

[0013] The lower side of the thinned section is thinned and recessed. As the thinned section and its adjacent areas solidify, the material in the adjacent areas gradually converges towards the upper part of the edge area where the thinned section connects to the base body and the cover plate. After solidification, the thinned section exhibits a downward convex curvature as a whole. That is, the cover plate and the base body together present an upward-opening folded shape. If the connection between the cover plate and the middle frame is released, the cover plate will also spring upward as the thinned section restores its shape, thus facilitating the creation of space between the cover plate and the countersunk hole for inserting threaded fasteners such as screws or bolts, or for inserting screwdrivers.

[0014] In an optional technical solution, the cover plate is provided with a first latch, the free end of the first latch has a wedge-shaped hook, the first latch protrudes from the cover plate in a direction perpendicular to the cover plate, and the wedge-shaped hook is used to insert into a first slot provided on the middle frame.

[0015] By setting a first latch to insert into the first slot, the cover plate can be fixed relative to the countersunk hole through the fixing method of the latch and the slot. This not only covers the countersunk hole when the air conditioner is in normal use, improving the aesthetics of the air conditioner and maintaining smooth airflow, but also facilitates assembly. It avoids the problem of difficult assembly or disassembly caused by the difficulty in controlling the gap between the side edge of the cover plate and the countersunk hole of the middle frame when directly using them.

[0016] In an optional technical solution, the cover plate is provided with a first recessed portion, which is recessed from the side edge of the cover plate toward the base body.

[0017] By providing a first recessed portion that is recessed into the base on the side edge of the cover plate, the operator can use a tool to insert into the gap between the first recessed portion and the middle frame, and then use the tool to pry open the edge of the cover plate, thereby making the cover plate move relative to the middle frame to expose the countersunk hole, which improves the convenience of operation.

[0018] In an optional technical solution, the cover plate is provided with a second recessed portion, which is recessed from the lower surface of the cover plate along the thickness direction of the cover plate, and the second recessed portion is provided corresponding to the first recessed portion.

[0019] By providing a second recessed portion along the thickness direction on the lower surface of the cover plate, the recessed space formed by the second recessed portion can accommodate an object inserted into the lower part of the cover plate through the first recessed portion, allowing it to lift the cover plate. Furthermore, the side wall of the second recessed portion facing the base body can limit the length of the object extending under the cover plate, thereby preventing the object from extending too far and damaging other parts.

[0020] In an optional technical solution, the base body is provided with a first protrusion, which protrudes upward from the upper surface of the base body, and the cover plate is provided with a third recess that can engage with the first protrusion.

[0021] By providing a first protrusion on the base body that engages with a third recess on the cover plate, the cover plate can be fixed after it is lifted by utilizing the engagement of the first protrusion and the third recess. This prevents the cover plate from springing back and interfering with the operation of tightening or loosening threaded fasteners such as screws or bolts, thus improving the convenience of operation.

[0022] The second objective of this utility model is to provide an indoor air conditioning unit to solve the technical problem of having too many parts that obstruct the recessed hole.

[0023] The second aspect of this utility model provides an indoor air conditioning unit, which includes a middle frame, a base, and a swing base as described above. The middle frame is provided with a countersunk hole, and the cover plate can cover the countersunk hole.

[0024] By installing the aforementioned air-sweeping base in the indoor unit of the air conditioner, the indoor unit of the air conditioner accordingly possesses all the advantages of the aforementioned air-sweeping base, which will not be elaborated here.

[0025] In an optional technical solution, the base is provided with a first insertion hole, and the base body is provided with a first insertion tongue. The first insertion tongue can be inserted into the first insertion hole and abut against the side of the base opposite to the base body.

[0026] The base is also provided with a first latch, and a first hook is provided on one side edge of the first latch. The base body is provided with a second latch, which can be inserted into the first latch and hooked by the first hook.

[0027] By providing a first insertion hole in the base, allowing the first tongue of the base body to insert and abut against the side of the base opposite to the base body, the base body can be prevented from detaching from the base at the periphery where the first tongue is located. Furthermore, by providing a first locking slot on the base, allowing the second tongue to insert into the first locking slot and be engaged by the first hook, not only can the swing base be prevented from moving away from the base, but it can also be prevented from sliding in the left-right direction and the up-down direction, thus ensuring the stable installation of the swing base.

[0028] The third aspect of this utility model aims to provide an indoor air conditioning unit that solves the technical problem of difficult assembly of parts that obstruct countersunk holes.

[0029] The third aspect of this utility model provides an indoor air conditioning unit, including a middle frame, a base, and the aforementioned air-sweeping base. The middle frame is provided with a countersunk hole and a fourth recess surrounding the countersunk hole. The cover plate can cover the countersunk hole. The degree of the fourth recess is less than that of the countersunk hole. The upper surface of the fourth recess is provided with a first slot, and the first latch engages with the first slot.

[0030] By providing a fourth recess to accommodate the cover plate, the upper surface of the cover plate aligns with the adjacent area of ​​the middle frame after it closes the countersunk hole, reducing airflow loss as it passes through this area. Furthermore, the first slot, connected to the first latch, secures the cover plate, keeping the connection force within a manageable range. Compared to directly fastening the screw cap to the countersunk hole, this method is not only easier to assemble but also easier to disassemble. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments or background art of this utility model, 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 this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0032] Figure 1 This is a structural schematic diagram of the air-sweeping base provided in Embodiment 1 of this utility model in the unfolded state of the cover plate relative to the base body.

[0033] Figure 2 This is a structural diagram of the sweeping base provided in Embodiment 1 of the present invention when it is installed in the indoor unit of a wall-mounted air conditioner with the cover plate unfolded relative to the base body.

[0034] Figure 3 The front view of the sweeping base provided in Embodiment 1 of this utility model when it is installed in the indoor unit of a wall-mounted air conditioner with the cover plate unfolded relative to the base body.

[0035] Figure 4 This is a partial schematic diagram of the indoor unit of a wall-mounted air conditioner when the sweeping base provided in Embodiment 1 of this utility model is installed in the indoor unit of the wall-mounted air conditioner with the cover plate unfolded relative to the base body.

[0036] Figure 5 This is a partial sectional view (AA section) of the sweeping base provided in Embodiment 1 of this utility model when it is installed in the indoor unit of a wall-mounted air conditioner, with the cover plate in the unfolded state relative to the base body.

[0037] Figure 6 This is a schematic diagram of the structure of the air-sweeping base provided in Embodiment 1 of this utility model in the folded state of the cover plate relative to the base body.

[0038] Figure 7 This is a schematic diagram of the structure of the sweeping base provided in Embodiment 1 of this utility model when it is installed in the indoor unit of a wall-mounted air conditioner with the cover plate folded relative to the base body.

[0039] Figure 8 The front view of the sweeping base provided in Embodiment 1 of this utility model when the cover plate is folded relative to the base body and installed on the indoor unit of a wall-mounted air conditioner.

[0040] Figure 9 This is a partial schematic diagram of the indoor unit of a wall-mounted air conditioner when the sweeping base provided in Embodiment 1 of this utility model is installed in the indoor unit of the wall-mounted air conditioner with the cover plate folded relative to the base body.

[0041] Figure 10 This is a partial sectional view (AA section) of the sweeping base provided in Embodiment 1 of this utility model when the cover plate is folded relative to the base body and installed on the indoor unit of a wall-mounted air conditioner.

[0042] Figure 11 This is a structural diagram of the air-sweeping base provided in Embodiment 1 of this utility model, with the cover plate fixed to the base body.

[0043] Figure 12 This is a schematic diagram of the structure of the sweeping base provided in Embodiment 1 of this utility model when the cover plate is fixed to the base body and installed on the indoor unit of a wall-mounted air conditioner.

[0044] Figure 13 The front view of the sweeping base provided in Embodiment 1 of this utility model when the cover plate is fixed to the base body and installed on the indoor unit of a wall-mounted air conditioner.

[0045] Figure 14 This is a partial schematic diagram of the indoor unit of a wall-mounted air conditioner, showing the sweeping base provided in Embodiment 1 of this utility model installed on the indoor unit with the cover plate fixed to the base body.

[0046] Figure 15 This is a partial sectional view (AA section) of the sweeping base provided in Embodiment 1 of this utility model, when the cover plate is fixed to the base body and installed on the indoor unit of a wall-mounted air conditioner.

[0047] Figure 16 This is a schematic diagram of the structure of the swing base provided in Embodiment 1 of this utility model, when the cover plate is fixed to the base body and installed on the indoor unit of a wall-mounted air conditioner, viewed from another direction. The enlarged cross-sectional view in the figure shows the position and direction as follows. Figure 15 The BB section is shown in the figure.

[0048] Figure 17 This is a schematic diagram of the structure of the air conditioner indoor unit after the base and the middle frame are combined, as provided in Embodiment 2 of this utility model.

[0049] Figure 18 This is a partial sectional view of the air conditioner indoor unit after the base and middle frame are combined, according to Embodiment 2 of this utility model.

[0050] Figure 19 This is a three-dimensional sectional view of the air conditioner indoor unit after the base and middle frame are combined, according to Embodiment 2 of this utility model.

[0051] Figure 20 This is a structural diagram of the indoor unit of an air conditioner mentioned in the background art.

[0052] Figure 21 for Figure 20 A magnified view of part A.

[0053] Explanation of reference numerals in the attached figures:

[0054] 100-Sweeping base; 110-Base body; 111-First protrusion; 112-First latch; 113-Second latch; 120-Cover plate; 121-First latch; 1211-Wedge-shaped hook; 122-First recess; 123-Second recess; 124-Third recess; 125-Second protrusion; 130-Thinned portion; 140-Sweeping blade;

[0055] 200 - Middle frame; 210 - Countersunk hole; 220 - Fourth recess; 221 - First slot;

[0056] 300 - Base; 310 - First insertion hole; 320 - First bayonet; 321 - First hook. Detailed Implementation

[0057] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model 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 this utility model and are not intended to limit it.

[0058] In this embodiment, the air-sweeping base is used as an example of a wall-mounted air conditioner indoor unit, but this does not preclude the application of the product to a cabinet-type air conditioner indoor unit. Unless otherwise specified, the definitions of direction in this application are as follows: "Front" refers to the side of the wall-mounted air conditioner indoor unit facing the main indoor space, while "rear" refers to the side facing the wall on which it is mounted. "Below" refers to the side of the wall-mounted air conditioner indoor unit facing the ground. "Above" refers to the side of the wall-mounted air conditioner indoor unit facing the ceiling. "Left" and "right" can be defined based on the aforementioned front, rear, and below; that is, when an observer faces the wall where the wall-mounted air conditioner indoor unit is installed, the observer's left hand is the left side, and the observer's right hand is the right side. Furthermore, "inner" and "outer" are defined based on the shape of the component, which is a cavity, box, or cylinder. The side of the cavity, box, or cylinder facing its internal space is the inner side, and the outer side is the side of the cavity or box facing its external space.

[0059] Example 1:

[0060] Figure 1 This is a structural schematic diagram of the air-sweeping base provided in Embodiment 1 of this utility model in the unfolded state of the cover plate relative to the base body. Figure 2 This is a structural diagram of the sweeping base provided in Embodiment 1 of the present invention when it is installed in the indoor unit of a wall-mounted air conditioner with the cover plate unfolded relative to the base body. Figure 6This is a schematic diagram of the structure of the air-sweeping base provided in Embodiment 1 of this utility model in the folded state of the cover plate relative to the base body. Figure 7 This is a schematic diagram of the structure of the air-sweeping base provided in Embodiment 1 of this utility model when it is installed in the indoor unit of a wall-mounted air conditioner, with the cover plate folded relative to the base body. Figure 1 , Figure 2 and Figure 6 , Figure 7 As shown, the sweeping base 100 provided in Embodiment 1 of this utility model includes a base body 110 and a cover plate 120 rotatably connected to the base body 110. The base body 110 is used to connect the sweeping blades 140, and the cover plate 120 is used to cover the countersunk hole 210 of the middle frame 200. The cover plate 120 is rotatably arranged relative to the base body 110 along one side edge of the base body 110.

[0061] By rotatably connecting the cover plate 120 for covering the countersunk hole 210 of the middle frame 200 to the base body 110, the cover plate 120 can be set together with the base body 110. When the air sweeping assembly base body 110 is installed onto the base 300, the cover plate 120 can be positioned to easily cover the countersunk hole 210, and then the cover plate 120 can be placed on the countersunk hole 210. There is no need to use a separate, smaller cover plate 120, which not only reduces the number of parts but also reduces the number of operation steps in the production process, and also facilitates the management of parts involved in air conditioning production. In addition, if it is necessary to separate the bottom of the middle frame 200 from the base 300, the cover plate 120 can be folded relative to the base body 110 to expose the countersunk hole 210, making it easy to unscrew male threaded fasteners such as screws or bolts in the countersunk hole 210. Moreover, after folding the cover plate 120 relative to the base body 110, the cover plate 120 will not interfere with the movement of the middle frame 200.

[0062] In this embodiment, the bottom of the middle frame 200 is provided with two countersunk holes 210. These countersunk holes 210 are used to install male threaded connectors such as screws or bolts for connection with the threaded holes of the base 300. The cover plate 120 covers the countersunk holes 210, meaning that the cover plate 120 can simply cover the countersunk holes 210 so that they are no longer exposed; it is not required that the cover plate 120 be locked into the hole wall or opening of the countersunk hole 210. Therefore, the gap problem between the screw cap and the countersunk hole 210 as described in the prior art will not occur.

[0063] In this embodiment, a cover plate 120 is provided for each of the two countersunk holes 210. By integrally connecting the two cover plates 120 with the base body 110, the original installation of three parts—the two cover plates 120 and the base body 110—can be transformed into the installation of a single air-sweeping base 100, which includes one base body 110 and two cover plates 120. By installing the base body 110 on the base 300 and then closing the cover plates 120, the countersunk holes 210 can be covered.

[0064] Figure 5 This is a partial sectional view (AA section) of the sweeping base provided in Embodiment 1 of this utility model when it is installed in the indoor unit of a wall-mounted air conditioner, with the cover plate in the unfolded state relative to the base body. Figure 10 This is a partial sectional view (AA section) of the sweeping base provided in Embodiment 1 of this utility model, when installed in the indoor unit of a wall-mounted air conditioner, with the cover plate folded relative to the base body. Figure 1 , Figure 5 and Figure 6 , Figure 10 As shown, optionally, the cover plate 120 is connected to the base body 110 through the thinning portion 130. The thickness of the thinning portion 130 is smaller than a portion of the base body 110 connected to the thinning portion 130, and also smaller than the portion of the cover plate 120 connected to the thinning portion 130.

[0065] By providing the thinning portion 130, the thickness of the thinning portion 130 is less than the thickness of the parts of the base body 110 and the cover plate 120 adjacent to the thinning portion 130, thereby making the thinning portion 130 a region with lower stiffness in its surrounding area. When the cover plate 120 is subjected to force, the deformation of the thinning portion 130 is significantly greater than that of its surrounding area, which is beneficial for controlling the folding position of the cover plate 120 and the base body 110. Moreover, by providing the thinning portion 130, when the cover plate 120 is folded upward relative to the base body 110, the pressure on the upper part of the thinning portion 130 is reduced, while the tensile force on the lower part of the thinning portion 130 is reduced, thus preventing local cracks from forming in the thinning portion 130.

[0066] like Figure 1 , Figure 5 and Figure 6 , Figure 10 As shown, optionally, the lower side of the thinned portion 130 is thinned and recessed.

[0067] The lower side of the thinned portion 130 is thinned and recessed. As the thinned portion 130 and its adjacent areas solidify, the material in the adjacent areas gradually converges towards the upper part of the edge area where the thinned portion 130 connects to the base body 110 and the cover plate 120. After solidification, the thinned portion 130 can present a downward convex curvature as a whole. That is, the cover plate 120 and the base body 110 present an upward-opening folded shape as a whole. If the connection between the cover plate 120 and the middle frame 200 is released, the cover plate 120 will also spring upward as the thinned portion 130 restores its own shape, thereby facilitating the formation of a space between the cover plate 120 and the countersunk hole 210 for inserting male threaded fasteners such as screws or bolts or for inserting screwdrivers.

[0068] Specifically, the lower side of the thinned portion 130 is an arc-shaped recess. That is, the thickness of the edge of the thinned portion 130 connected to the base body 110 is the same as the thickness of the edge of the base body 110 connecting to the thinned portion 130, and the upper surface of the thinned portion 130 is smoothly connected to the upper surface of the base body 110 at the connection point. In other words, the thickness of the edge of the thinned portion 130 connected to the base body 110 is the same as the thickness of the edge of the cover plate 120 connecting to the thinned portion 130, and the upper surface of the thinned portion 130 is smoothly connected to the upper surface of the cover plate 120 at the connection point. This design reduces abrupt changes in shape on the upper surface of the swing base 100, thereby reducing the velocity loss of the airflow after it exits the air outlet.

[0069] Figure 8 The front view of the sweeping base provided in Embodiment 1 of this utility model when the cover plate is folded relative to the base body and installed on the indoor unit of a wall-mounted air conditioner. Figure 9 This is a partial schematic diagram showing the view from inside the wall-mounted air conditioner indoor unit when the sweeping base provided in Embodiment 1 of this utility model is installed in the indoor unit of the wall-mounted air conditioner with the cover plate folded relative to the base body. Figure 1 , Figures 6-10 As shown, optionally, the cover plate 120 is provided with a first latch 121, the free end of the first latch 121 having a wedge-shaped hook 1211, the first latch 121 protruding from the cover plate 120 in a direction perpendicular to the cover plate 120, and the wedge-shaped hook 1211 being used to insert into a first slot 221 provided on the middle frame 200.

[0070] By setting the first latch 121 to insert into the first slot 221, the cover plate 120 can be fixed relative to the countersunk hole 210 through the fixing method of the latch and the slot. This not only covers the countersunk hole 210 when the air conditioner is in normal use, improving the aesthetics of the air conditioner and maintaining smooth airflow, but also facilitates assembly. It avoids the problem of difficult assembly or disassembly caused by the difficulty in controlling the gap between the side edge of the cover plate 120 and the countersunk hole 210 of the middle frame 200 when directly using them.

[0071] Each cover plate 120 has two first latches 121, located on the lower side of the cover plate 120 when it is in the state of covering the countersunk hole 210. Furthermore, the cover plate 120 is generally rectangular, with one side connected to the thinned portion 130, and the first latches 121 are positioned close to the two sides adjacent to that side. Even further, the first latches 121 are located relatively far from the thinned portion 130 on these two sides. The wedge-shaped hooks 1211 of the two first latches 121 protrude in a direction opposite to each other, engaging with the hooks in the first slots 221 to fix the cover plate 120 relative to the countersunk hole 210.

[0072] Figure 3 The front view of the sweeping base provided in Embodiment 1 of this utility model when it is installed in the indoor unit of a wall-mounted air conditioner with the cover plate unfolded relative to the base body. Figure 4 This is a partial schematic diagram of the indoor unit of a wall-mounted air conditioner when the sweeping base provided in Embodiment 1 of this utility model is installed in the indoor unit of the wall-mounted air conditioner with the cover plate unfolded relative to the base body. Figure 5 This is a partial sectional view (AA section) of the sweeping base provided in Embodiment 1 of this utility model, when installed in the indoor unit of a wall-mounted air conditioner, with the cover plate in the unfolded state relative to the base body. Figures 1-10 As shown, optionally, the cover plate 120 is provided with a first recess 122, which is recessed from the side edge of the cover plate 120 toward the base body 110.

[0073] By providing a first recess 122 that is recessed into the base on the side edge of the cover plate 120, an operator can use a tool to insert into the gap between the first recess 122 and the middle frame 200, and then use the tool to pry open the edge of the cover plate 120, thereby making the cover plate 120 movable relative to the middle frame 200 to expose the countersunk hole 210, which improves the convenience of operation.

[0074] The first recess 122 is a rectangular recess, and the gap between the first recess 122 and the middle frame 200 allows a flathead screwdriver or an operator's finger to be inserted to pry up the edge of the cover plate 120.

[0075] like Figures 5-10 As shown, optionally, the cover plate 120 is provided with a second recess 123, which is recessed from the lower surface of the cover plate 120 along the thickness direction of the cover plate 120, and the second recess 123 is provided corresponding to the first recess 122.

[0076] By providing a second recess 123 recessed along the thickness direction on the lower surface of the cover plate 120, the recessed space formed by the second recess 123 can accommodate an object inserted into the lower part of the cover plate 120 through the first recess 122, allowing the object to lift the cover plate 120. Furthermore, the side wall of the second recess 123 facing the base body 110 can limit the length of the object extending under the cover plate 120, thereby preventing the object from extending too far and damaging other parts.

[0077] Specifically, in this embodiment, the second recess 123 is positioned in the left-right direction corresponding to the first recess 122, that is, the sidewall of the first recess 122 can be continuously arranged with the sidewall of the second recess 123.

[0078] Figure 11 This is a structural diagram of the air-sweeping base provided in Embodiment 1 of this utility model, with the cover plate fixed to the base body. Figure 12 This is a schematic diagram of the structure of the sweeping base provided in Embodiment 1 of this utility model when the cover plate is fixed to the base body and installed on the indoor unit of a wall-mounted air conditioner. Figure 13 The front view of the sweeping base provided in Embodiment 1 of this utility model when the cover plate is fixed to the base body and installed on the indoor unit of a wall-mounted air conditioner. Figure 14 This is a partial schematic diagram of the indoor unit of a wall-mounted air conditioner, showing the sweeping base provided in Embodiment 1 of this utility model installed on the indoor unit with the cover plate fixed to the base body. Figure 15 This is a partial sectional view (AA section) of the sweeping base provided in Embodiment 1 of this utility model, when the cover plate is fixed to the base body and installed on the indoor unit of a wall-mounted air conditioner. Figure 16 This is a schematic diagram of the structure of the swing base provided in Embodiment 1 of this utility model, when the cover plate is fixed to the base body and installed on the indoor unit of a wall-mounted air conditioner, viewed from another direction. The enlarged cross-sectional view in the figure shows the position and direction as follows. Figure 15 As shown in the BB cross-section. Figures 11-16 As shown, optionally, the base body 110 is provided with a first protrusion 111, the first protrusion 111 protrudes upward from the upper surface of the base body 110, and the cover plate 120 is provided with a third recess 124 that can engage with the first protrusion 111.

[0079] By providing a first protrusion 111 on the base body 110 and engaging with a third recess 124 on the cover plate 120, the cover plate 120 can be fixed by engaging the first protrusion 111 with the third recess 124 after it is lifted, preventing the cover plate 120 from springing back and interfering with the operation of tightening or loosening male threaded fasteners such as screws or bolts, thus improving the convenience of operation.

[0080] Specifically, in this embodiment, the engagement of the third recess 124 with the first protrusion 111 means that the third recess 124 is fitted onto the first protrusion 111, and there is friction between the first protrusion 111 and the third recess 124. This friction can suppress the tendency of the cover plate 120 to return to its spontaneous position.

[0081] Furthermore, the cross-section of the first protrusion 111 gradually decreases from its root to its free end. Similarly, the shape of the third recess 124 is adapted to the first protrusion 111, that is, the third recess 124 is fitted on the first protrusion 111, and the two are squeezed together. The squeeze generates friction, which is sufficient to keep the cover plate 120 fixed relative to the base body 110.

[0082] Furthermore, since a third recessed portion 124 with a relatively large indentation is formed on the upper surface of the cover plate 120, a second protrusion 125 is formed on the lower surface of the cover plate 120. The shape and position of the second protrusion 125 are consistent with the third recessed portion 124. By setting the second protrusion 125, after the third recessed portion 124 is fitted onto the first protrusion 111, when it is necessary to close the countersunk hole 210 with the cover plate 120, the second protrusion 125 can be pinched to pull out the cover plate 120, and then the cover plate 120 can be rotated relative to the base body 110, thereby finally closing the countersunk hole 210.

[0083] Example 2:

[0084] Figure 17 This is a schematic diagram of the structure of the air conditioner indoor unit after the base and middle frame are combined, as provided in Embodiment 2 of this utility model. Figure 2 , Figure 3 , Figure 7 , Figure 8 , Figure 12 , Figure 13 and Figure 17 As shown, the air conditioner indoor unit provided in Embodiment 2 of this utility model includes a middle frame 200, a base 300 and a swing base 100 of any of the above. The middle frame 200 is provided with a countersunk hole 210, and the cover plate 120 can cover the countersunk hole 210.

[0085] By installing the aforementioned air-sweeping base 100 in the indoor unit of the air conditioner, the indoor unit of the air conditioner has all the advantages of the aforementioned air-sweeping base 100, which will not be elaborated here.

[0086] Figure 18 This is a partial sectional view of the air conditioner indoor unit after the base and middle frame are combined, according to Embodiment 2 of this utility model. Figure 19 This is a three-dimensional sectional view (CC section) of the air conditioner indoor unit after the base and middle frame are combined, as provided in Embodiment 2 of this utility model. Figures 17-19As shown, optionally, the base 300 is provided with a first insertion hole 310, and the base body 110 is provided with a first insertion tongue 112. The first insertion tongue 112 can be inserted into the first insertion hole 310 and abut against the side of the base 300 opposite to the base body 110.

[0087] The base 300 is also provided with a first slot 320, and a first hook 321 is provided on one side edge of the first slot 320. The base body 110 is provided with a second latch 113, which can be inserted into the first slot 320 and hooked by the first hook 321.

[0088] By providing a first insertion hole 310 in the base 300, allowing the first insertion tongue 112 of the base body 110 to be inserted and abut against the side of the base 300 opposite to the base body 110, the base body 110 can be prevented from detaching from the base 300 at the periphery where the first insertion tongue 112 is provided. Furthermore, by providing a first locking slot 320 on the base 300, allowing the second locking tongue 113 to be inserted into the first locking slot 320 and hooked by the first hook 321, not only can the swing base 100 be prevented from moving away from the base 300, but the swing base 100 can also be prevented from sliding in the left-right direction and the up-down direction, thereby ensuring the stable installation of the swing base 100.

[0089] In this embodiment, six first insertion holes 310 are arranged at intervals in the left-right direction of the base 300, and correspondingly, six first insertion tongues 112 are also provided on the base body 110. Three first latches 320 and first hooks 321 are arranged at intervals in the left-right direction of the base 300, and correspondingly, three second latches 113 are also provided on the base body 110. Specifically, on the base body 110, the first insertion tongues 112 are located at the upper part to restrict the upper position of the base body 110, while the second latches 113 are located at the lower part to restrict the lower position of the base body 110.

[0090] Specifically, the first tongue 112 is located below the base body 110, that is, the base 300 forms a step at the first socket, the first socket is set on the lower first step surface, the base body 110 overlaps the step surface, and the first tongue 112 is roughly flush with the first step surface, so the first tongue 112 can be inserted below the second step surface of the base 300 and abut against the lower surface of the second step surface.

[0091] Specifically, the lower side wall of the first latch 320 is provided with a first hook 321, which extends upward into the interior of the first latch 320. The second latch tongue 113 can be inserted into the first latch 320 from top to bottom to hook the first hook 321. The first hook 321 and the second latch tongue 113 hook each other, restricting not only the upward movement of the first hook 321 but also its forward movement. The cooperation between the first latch tongue 121 and the first latch 320 restricts the left and right movement of the base body 110.

[0092] Example 3:

[0093] like Figures 6-15 As shown, the air conditioner indoor unit provided in Embodiment 3 of this utility model includes a middle frame 200, a base 300 and the aforementioned air-sweeping base 100. The middle frame 200 is provided with a countersunk hole 210 and a fourth recessed portion 220 surrounding the countersunk hole 210. The cover plate 120 can cover the countersunk hole 210. The degree of recess of the fourth recessed portion 220 is less than that of the countersunk hole 210. The upper surface of the fourth recessed portion 220 is provided with a first slot 221, and the first latch 121 is engaged in the first slot 221.

[0094] By providing a fourth recess 220 to accommodate the cover plate 120, the upper surface of the cover plate 120 after closing the countersunk hole 210 is aligned with the adjacent area of ​​the middle frame 200, reducing airflow loss when passing through this area. Furthermore, the first slot 221, connected to the first latch 121, secures the cover plate 120, thus controlling the connection force within a manageable range. Compared to directly fastening the screw cap to the countersunk hole 210, this method is not only easier to assemble but also easier to disassemble.

[0095] The sidewall of the fourth recess 220 has gaps between itself and the corresponding side edges of the cover plate 120, thereby preventing the side edges of the cover plate 120 from being directly jammed into the sidewall of the fourth recess 220, which would make it difficult to install and / or remove the cover plate 120.

[0096] The first slot 221 can be located at two positions near the corners of the fourth recess 220 to correspond to the first latch 121. More specifically, a latching protrusion is provided on the side wall of the first slot 221 to hook the latching protrusion of the wedge-shaped hook 1211.

[0097] 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 present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0098] 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.

[0099] In the above embodiments, descriptions of directions such as "up" and "down" are based on the accompanying drawings.

[0100] The above description of the disclosed embodiments enables those skilled in the art to make or use the present 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 present invention.

[0101] Therefore, this 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 sweeping base (100), characterized in that, It includes a base body (110) and a cover plate (120) rotatably connected to the base body (110). The base body (110) is used to connect the sweeping blades (140), and the cover plate (120) is used to cover the countersunk hole (210) of the middle frame (200). The cover plate (120) is rotatably disposed relative to the base body (110) along one side edge of the base body (110).

2. The air-sweeping base (100) according to claim 1, characterized in that, The cover plate (120) is connected to the base body (110) via a thinning portion (130). The thickness of the thinning portion (130) is smaller than the portion of the base body (110) connected to the thinning portion (130) and also smaller than the portion of the cover plate (120) connected to the thinning portion (130).

3. The air-sweeping base (100) according to claim 2, characterized in that, The lower side of the thinned portion (130) is thinned and recessed.

4. The air-sweeping base (100) according to claim 3, characterized in that, The cover plate (120) is provided with a first latch (121), the free end of which has a wedge-shaped hook (1211). The first latch (121) protrudes from the cover plate (120) in a direction perpendicular to the cover plate (120), and the wedge-shaped hook (1211) is used to insert into a first slot (221) provided on the middle frame (200).

5. The air-sweeping base (100) according to claim 1, characterized in that, The cover plate (120) is provided with a first recess (122), which is recessed from the side edge of the cover plate (120) toward the base body (110).

6. The air-sweeping base (100) according to claim 5, characterized in that, The cover plate (120) is provided with a second recess (123), which is recessed from the lower surface of the cover plate (120) along the thickness direction of the cover plate (120), and the second recess (123) is provided corresponding to the first recess (122).

7. The sweeping base (100) according to any one of claims 1-6, characterized in that, The base body (110) is provided with a first protrusion (111), which protrudes upward from the upper surface of the base body (110), and the cover plate (120) is provided with a third recess (124) that can engage with the first protrusion (111).

8. An indoor unit for an air conditioner, characterized in that, The indoor unit of the air conditioner includes a middle frame (200), a base (300) and a swing base (100) according to any one of claims 1-7. The middle frame (200) is provided with a countersunk hole (210), and the cover plate (120) is capable of covering the countersunk hole (210).

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The base (300) is provided with a first insertion hole (310), and the base body (110) is provided with a first insertion tongue (112). The first insertion tongue (112) can be inserted into the first insertion hole (310) and abut against the side of the base (300) opposite to the base body (110). The base (300) is also provided with a first slot (320), and a first hook (321) is provided on one side edge of the first slot (320). The base body (110) is provided with a second tongue (113), which can be inserted into the first slot (320) and hooked by the first hook (321).

10. An indoor unit for an air conditioner, characterized in that, The indoor unit of the air conditioner includes a middle frame (200), a base (300), and a swing base (100) as claimed in claim 4. The middle frame (200) is provided with a countersunk hole (210) and a fourth recess (220) surrounding the countersunk hole (210). The cover plate (120) can cover the countersunk hole (210). The degree of recess of the fourth recess (220) is less than that of the countersunk hole (210). The upper surface of the fourth recess (220) is provided with a first slot (221), and the first latch (121) is engaged in the first slot (221).

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