Fixed mounting structure for filter screen of air conditioner

Abstract

The utility model relates to an air conditioner filter screen fixing and mounting structure, and belongs to the technical field of air conditioner indoor units. The limiting sliding grooves extending in the width direction of the air inlet are formed in the first side wall and the second side wall of the filter screen positioning installation cavity respectively, the limiting sliding blocks matched with the limiting sliding grooves are arranged on the two side end faces of the frame respectively, and the limiting sliding blocks can only slide in the limiting sliding grooves in a reciprocating mode and cannot rotate relatively. And through the special arc-shaped elastic clamping hook design, the free end is provided with the guide part, the deformation time of the arc-shaped elastic clamping hook can be shortened, the root part is provided with the reinforcing rib, and the overall strength of the clamping hook is enhanced, so that the filter screen is convenient to assemble, and the overall structure is more reliable. Besides, when the filter screen is assembled, the filter screen only needs to be simply clamped into the filter screen positioning and mounting cavity along a straight line in a sliding manner, the process of rotating and pressing an elastic clip is omitted, and the assembly is more convenient and quicker.

Description

Technical Field

[0001] This utility model relates to a fixed installation structure for an air conditioner filter, belonging to the technical field of air conditioner indoor unit. Background Technology

[0002] Currently, there are two methods for installing filters on the indoor units of wall-mounted air conditioners. The first method places the filter on the middle frame. This method has two drawbacks: firstly, cleaning the filter requires opening the panel and then removing it, which is inconvenient for users. Secondly, after cleaning, the panel is prone to misalignment, and frequent opening and closing can deform or even break the clips on the panel that assemble with the middle frame, resulting in a poor user experience. Thirdly, the filter is close to the evaporator, making it more susceptible to moisture and bacterial growth, increasing the likelihood of filter clogging and negatively impacting performance. The second method involves installing the filter on the outside of the unit. Current installation methods typically use ordinary elastic clips. If the clips are too tight, it becomes difficult to operate during assembly on the production line and subsequent user cleaning. If the clips are loose, at least two layers of tape are needed to secure the filter, increasing the cost per unit and requiring additional manual labor. Otherwise, the filter may easily fall out during transportation.

[0003] For example, Chinese patent document CN205066122U discloses an air conditioner filter installation structure and a wall-mounted air conditioner. The air conditioner filter installation structure includes an air conditioner filter and an air conditioner body. The air conditioner filter includes a filter body and a frame. The filter body is installed within the frame, and the frame is connected to the edge of the filter body. Guide posts are provided on the frame at both ends of the air conditioner filter's length direction, with the extension direction of the guide posts being the same as the length direction of the air conditioner filter. Guide grooves are provided on the back of the air conditioner body corresponding to the guide posts. The guide posts are installed in the guide grooves and slide along the length direction of the guide grooves. This utility model, by providing guide grooves at both ends of the air conditioner body and guide posts on the frame at both ends of the air conditioner filter, allows the air conditioner filter to move along the guide grooves. During installation, pressing down on the air conditioner filter moves the guide posts along the guide grooves to install the air conditioner filter. During disassembly, lifting the air conditioner filter allows the guide posts to move out of the guide grooves from bottom to top. Elastic positioning buckles are provided on the frame at both ends of the air conditioner filter, extending towards the air conditioner body. The air conditioner body has positioning holes corresponding to the elastic positioning buckles, and the elastic positioning buckles are installed in the positioning holes. Specifically, the elastic positioning buckles can be set on the upper part of the frame at both ends of the air conditioner filter. The elastic positioning buckles are elongated and have a limiting part at the end away from the frame. When the guide post moves to the bottom of the guide groove, the air conditioner filter is swung around the guide post as a pivot, causing the elastic positioning buckle to deform and enter the positioning hole, so that the limiting part cooperates with the retaining rib in the positioning hole to fix the upper part of the air conditioner filter. This solution adopts the second method mentioned above, which mainly uses ordinary elastic clips to undertake the connection and fastening function. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an air conditioner filter fixing and installation structure that is easy to assemble and has a more reliable overall connection structure.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an air conditioner filter screen fixing and installation structure, including a filter screen and an air conditioner housing. The filter screen includes a screen body and a frame. The outer periphery of the frame is a rectangular frame structure. The screen body is fixedly installed inside the frame. The air conditioner housing has an air inlet. A filter screen positioning and installation cavity for fixing and installing the filter screen is provided at the outer end face of the air inlet. The filter screen positioning and installation cavity includes an installation port, a bottom wall of the installation cavity, a first side wall, a second side wall, and a third side wall. The bottom wall of the installation cavity is used to support the back of the frame. The first side wall and the second side wall are arranged opposite to each other at both ends of the length direction of the air inlet. The installation port and the third side wall are arranged opposite to each other at both ends of the width direction of the air inlet. The installation port is used for the filter screen to slide in and out along its width direction. The first side wall and the second side wall are respectively provided with limiting grooves extending along the width direction of the air inlet. The two side ends of the frame are respectively provided with... A limiting slider is provided to cooperate with the limiting groove. The limiting slider can only slide back and forth within the limiting groove and cannot rotate relative to it. The third side wall is provided with snap-fit ​​limiting holes. The axis of the snap-fit ​​limiting holes is set along the width direction of the filter screen. Multiple snap-fit ​​limiting holes are set at intervals along the length direction of the third side wall. The side end face of the frame is provided with arc-shaped elastic hooks that correspond one-to-one with the snap-fit ​​limiting holes. One end of the arc-shaped elastic hook is fixedly connected to the side end face of the frame through a reinforcing rib, and the other end is a free end. A guide part is smoothly connected to the end face of its free end. When the filter screen slides into the filter screen positioning and mounting cavity, the arc-shaped elastic hook can generate elastic deformation to pass through the snap-fit ​​limiting hole, and the guide part of its free end forms a limiting fit with the outer end face of the snap-fit ​​limiting hole. When the guide part of the free end of the arc-shaped elastic hook is subjected to external force, the arc-shaped elastic hook generates elastic deformation to allow the filter screen to slide out of the filter screen positioning and mounting cavity.

[0006] To facilitate processing and assembly, and to make the structure more reliable, a further preferred embodiment is that the snap-fit ​​limiting hole is a rectangular hole, and the inner wall of the snap-fit ​​limiting hole near the bottom wall of the mounting cavity is coplanar with the bottom wall of the mounting cavity; the arc-shaped elastic hook is an arc-shaped plate extending along the length of the filter screen, and the connection end of the arc-shaped elastic hook to the side end face of the frame is located at the end near the back of the frame, and the free end of the arc-shaped elastic hook bends and extends towards the front of the frame.

[0007] To make the structure more reliable, a further preferred option is to set reinforcing ribs on the side plate near the front of the frame at the connection end between the arc-shaped elastic hook and the side end face of the frame, with multiple reinforcing ribs arranged side by side on each arc-shaped elastic hook.

[0008] To make the structure more reliable, a further preferred option is that the side of the reinforcing rib closest to the front of the frame is smoothly connected to the side end face of the frame through a rounded corner structure.

[0009] To facilitate processing and assembly, and to make the structure more reliable, a further preferred option is that the limiting groove is a rectangular groove, and the inner wall of the limiting groove on the side closest to the bottom wall of the mounting cavity is coplanar with the bottom wall of the mounting cavity; the limiting slider is a rectangular columnar structure that extends along the width direction of the frame.

[0010] To facilitate assembly, a further preferred option is to provide a guide structure surface at the end of the limiting slide near the mounting port.

[0011] The beneficial effects of this utility model are as follows: It not only clearly defines that the limiting slider can only slide back and forth within the limiting groove without relative rotation, thus achieving a better limiting effect, but also, through a special arc-shaped elastic hook design, with a guide portion at the free end to shorten the deformation time of the arc-shaped elastic hook, and a reinforcing rib at the root to enhance the overall strength of the hook, this not only facilitates filter assembly but also makes the overall structure more reliable. Because the reliability of the overall structure is fully guaranteed, auxiliary materials such as tape can be eliminated, reducing manual tape application and other processes, thus improving production efficiency. Furthermore, when assembling the filter, it is only necessary to simply slide it along a straight line into the filter positioning and installation cavity, eliminating the process of rotating and pressing the elastic clip, making assembly more convenient and faster. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model after assembly.

[0013] Figure 2 This is a three-dimensional structural diagram obtained by cutting through the area where the arc-shaped elastic hook is located after the utility model is assembled.

[0014] Figure 3 yes Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0015] Figure 4 This is a three-dimensional structural schematic diagram obtained by cutting through the mating area of ​​the limiting slider and the limiting groove after the utility model is assembled.

[0016] Figure 5 yes Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0017] Figure 6 This is a three-dimensional structural diagram of the filter screen in this utility model.

[0018] Figure 7 yes Figure 6A magnified schematic diagram of the structure at point C.

[0019] Figure 8 This is a three-dimensional structural diagram of the air conditioner housing in this utility model.

[0020] Figure 9 yes Figure 8 A magnified schematic diagram of the structure at point D.

[0021] Figure 10 yes Figure 8 A magnified schematic diagram of the structure at point E in the middle.

[0022] The components in the diagram are marked as follows: filter screen 10, frame 11, limit slider 12, arc-shaped elastic hook 13, reinforcing rib 14, guide part 15, rounded corner structure surface 16, air conditioner housing 20, first side wall 21, second side wall 22, third side wall 23, limit slide groove 24, snap-fit ​​limit hole 25, guide structure surface 26. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 10As shown, this utility model includes a filter screen 10 and an air conditioner housing 20. The filter screen 10 includes a screen body and a frame 11. The outer periphery of the frame 11 is a rectangular frame structure. The screen body is fixedly installed inside the frame 11. The air conditioner housing 20 has an air inlet. A filter screen positioning and mounting cavity for fixing the filter screen 10 is provided at the outer end face of the air inlet. The filter screen positioning and mounting cavity includes a mounting opening, a mounting cavity bottom wall, a first side wall 21, a second side wall 22, and a third side wall 23. The mounting cavity bottom wall is used to support and fit the back of the frame 11. The back of the frame 11 corresponds to a large surface of the filter screen 10 located inside the air inlet, and the front of the frame 11 corresponds to a large surface of the filter screen 10 located outside the air inlet. The first sidewall 21 and the second sidewall 22 are arranged opposite each other at both ends of the length direction of the air inlet, and the mounting port and the third sidewall 23 are arranged opposite each other at both ends of the width direction of the air inlet. The mounting port is used for the filter screen 10 to slide in and out along its width direction. The first sidewall 21 and the second sidewall 22 are respectively provided with limiting grooves 24 extending along the width direction of the air inlet. The two side ends of the frame 11 are respectively provided with limiting sliders 12 that cooperate with the limiting grooves 24. The limiting sliders 12 can only slide back and forth within the limiting grooves 24 and cannot rotate relative to each other. The third sidewall 23 is provided with a locking limiting hole 25. The axis of the locking limiting hole 25 is arranged along the width direction of the filter screen 10. Multiple arc-shaped elastic hooks 13 are spaced apart along the length direction. The side end face of the frame 11 is provided with arc-shaped elastic hooks 13 corresponding to the snap-fit ​​limiting holes 25 one by one. One end of the arc-shaped elastic hook 13 is fixedly connected to the side end face of the frame 11 through the reinforcing rib 14, and the other end is a free end. A guide part 15 is smoothly connected to the end face of its free end. When the filter screen 10 slides into the filter screen positioning and mounting cavity, the arc-shaped elastic hook 13 can generate elastic deformation to pass through the snap-fit ​​limiting hole 25, and the guide part 15 at its free end forms a limiting fit with the outer end face of the snap-fit ​​limiting hole 25. When the guide part 15 at the free end of the arc-shaped elastic hook 13 is subjected to external force, the arc-shaped elastic hook 13 generates elastic deformation to allow the filter screen 10 to slide out of the filter screen positioning and mounting cavity. After the filter screen 10 is installed, the main body of the arc-shaped elastic hook 13 has passed through the locking and limiting hole 25. The free end of the arc-shaped elastic hook 13 and the guide part 15 are located outside the filter screen positioning and installation cavity. By directly pressing the guide part 15 of the free end of the arc-shaped elastic hook 13, the distance between the guide part 15 and the fixed end of the arc-shaped elastic hook 13 can be reduced, thereby contacting the limiting fit structure between the end face of the guide part 15 and the outer end face of the locking and limiting hole 25. Then, gently push the arc-shaped elastic hook 13 towards the inside of the filter screen positioning and installation cavity, so that the main body of the arc-shaped elastic hook 13 retracts into the locking and limiting hole 25 (as long as part of the guide part 15 is located in the locking and limiting hole 25). At this time, the filter screen 10 can be easily slid out (generally, the filter screen 10 is pulled out from the end closest to the installation port).During assembly, the filter screen 10 can be directly slid into place along its width in a straight line until the arc-shaped elastic hook 13 passes through the locking and limiting hole 25, and the guide part 15 at its free end forms a limiting fit with the outer end face of the locking and limiting hole 25. This utility model is easy to assemble and disassemble, and the special arc-shaped elastic hook design can fully ensure the reliability of the overall structure and prevent failure.

[0025] The number of snap-fit ​​limiting holes 25 and arc-shaped elastic hooks 13 can be flexibly set according to the actual situation. In this embodiment, five snap-fit ​​limiting holes 25 and five arc-shaped elastic hooks 13 are provided respectively.

[0026] To facilitate processing and assembly and make the structure more reliable, the snap-fit ​​limiting hole 25 is a rectangular hole, and the inner wall of the snap-fit ​​limiting hole 25 near the bottom wall of the mounting cavity is coplanar with the bottom wall of the mounting cavity; the arc-shaped elastic hook 13 is an arc-shaped plate extending along the length of the filter screen 10, and the connection end of the arc-shaped elastic hook 13 with the side end face of the frame 11 is located at the end near the back of the frame 11, and the free end of the arc-shaped elastic hook 13 bends and extends towards the front of the frame 11.

[0027] The reinforcing rib 14 can adopt any structural form with superior structural strength to the arc-shaped body of the arc-shaped elastic hook 13. For example, in a preferred embodiment of this utility model, the arc-shaped body of the arc-shaped elastic hook 13 is in the shape of an arc-shaped plate. In some embodiments, the reinforcing rib 14 can be thickened relative to the arc-shaped body of the arc-shaped elastic hook 13, with the thickness of the reinforcing rib 14 increasing uniformly in the direction from the end near the arc-shaped body to the end near the side face of the frame 11. In some embodiments, the plate thickness corresponding to the reinforcing rib 14 can remain unchanged, and then one or more raised ribs can be added to the plate surface at the location of the reinforcing rib 14. In the preferred embodiment shown in the accompanying drawings of this utility model, the reinforcing rib 14 is disposed on the side plate surface near the front of the frame 11 at the connection end between the arc-shaped elastic hook 13 and the side face of the frame 11, and multiple reinforcing ribs 14 are arranged side by side. The number of reinforcing ribs 14 can be flexibly set according to the actual situation. In this embodiment, each arc-shaped elastic hook 13 is provided with three reinforcing ribs 14.

[0028] To enhance structural reliability, the side of the reinforcing rib 14 closest to the front of the frame 11 is smoothly connected to the side end face of the frame 11 via a rounded corner structural surface 16. The rounded corner structural surface 16 disperses stress, making the arc-shaped elastic hook 13 less prone to damage from repeated deformation.

[0029] To facilitate processing and assembly, and to make the structure more reliable, the limiting groove 24 is a rectangular groove, and the inner wall of the limiting groove 24 near the bottom wall of the mounting cavity is coplanar with the bottom wall of the mounting cavity; the limiting slider 12 is a rectangular columnar structure extending along the width direction of the frame 11. With this structural design, the limiting area achieved by the limiting slider 12 is larger, which not only ensures the overall assembly clearance, but also controls the overall deformation of the filter screen 10.

[0030] To facilitate assembly, the limiting slide 24 has a guide structure surface 26 at the end near the mounting opening. The guide structure surface 26 can generally be an inclined surface or an arc surface, or other guide curved surfaces. In the embodiment shown in the figure, an arc surface structure is preferred. In addition, an arc surface or inclined surface guide structure can also be added to the corner of the side of the frame 11.

Claims

1. An air conditioner filter fixing installation structure, including a filter (10) and an air conditioner housing (20), wherein the filter (10) includes a mesh body and a frame (11), the outer periphery of the frame (11) is a rectangular frame structure, the mesh body is fixedly installed inside the frame (11), the air conditioner housing (20) has an air inlet, and a filter positioning installation cavity for fixing the filter (10) is provided at the outer end face of the air inlet, the filter positioning installation cavity includes an installation port, a bottom wall of the installation cavity, a first side wall (21), a second side wall (22) and a third side wall (23), the bottom wall of the installation cavity is used to support the frame ( On the back of the frame (11), the first sidewall (21) and the second sidewall (22) are arranged opposite to each other at both ends of the length direction of the air inlet, and the mounting port and the third sidewall (23) are arranged opposite to each other at both ends of the width direction of the air inlet. The mounting port is used for the filter screen (10) to slide into and out along its width direction. The first sidewall (21) and the second sidewall (22) are respectively provided with limiting grooves (24) extending along the width direction of the air inlet. The two side ends of the frame (11) are respectively provided with limiting sliders (12) that cooperate with the limiting grooves (24). The frame is characterized in that: The limiting slider (12) can only slide back and forth within the limiting groove (24) and cannot rotate relative to it; the third side wall (23) is provided with snap-fit ​​limiting holes (25), the axis of which is set along the width direction of the filter screen (10), and multiple snap-fit ​​limiting holes (25) are spaced apart along the length direction of the third side wall (23). The side end face of the frame (11) is provided with arc-shaped elastic hooks (13) corresponding to the snap-fit ​​limiting holes (25), and one end of the arc-shaped elastic hooks (13) is fixedly connected to the side end face of the frame (11) through reinforcing ribs (14). The other end is a free end, and a guide part (15) is smoothly connected to the end face of its free end; when the filter screen (10) slides into the filter screen positioning and mounting cavity, the arc-shaped elastic hook (13) can generate elastic deformation to pass through the locking and limiting hole (25), and the guide part (15) at its free end forms a limiting fit with the outer end face of the locking and limiting hole (25); when the guide part (15) at the free end of the arc-shaped elastic hook (13) is subjected to external force, the arc-shaped elastic hook (13) generates elastic deformation so that the filter screen (10) slides out of the filter screen positioning and mounting cavity.

2. The air conditioner filter fixing and installation structure as described in claim 1, characterized in that: The snap-fit ​​limiting hole (25) is a rectangular hole. The inner wall of the snap-fit ​​limiting hole (25) near the bottom wall of the mounting cavity is coplanar with the bottom wall of the mounting cavity. The arc-shaped elastic hook (13) is an arc-shaped plate extending along the length of the filter screen (10). The connection end of the arc-shaped elastic hook (13) and the side end face of the frame (11) is located near the back of the frame (11). The free end of the arc-shaped elastic hook (13) bends and extends towards the front of the frame (11).

3. The air conditioner filter fixing and installation structure as described in claim 2, characterized in that: Reinforcing ribs (14) are provided on the side plate near the front of the frame (11) at the connection end between the arc-shaped elastic hook (13) and the side end face of the frame (11). Multiple reinforcing ribs (14) are arranged side by side on each arc-shaped elastic hook (13).

4. The air conditioner filter fixing and installation structure as described in claim 3, characterized in that: The side of the reinforcing rib (14) near the front of the frame (11) is smoothly connected to the side end face of the frame (11) through a rounded corner structure surface (16).

5. The air conditioner filter fixing and installation structure as described in claim 1, characterized in that: The limiting groove (24) is a rectangular groove, and the inner wall of the limiting groove (24) near the bottom wall of the mounting cavity is coplanar with the bottom wall of the mounting cavity; the limiting slider (12) is a rectangular columnar structure that extends along the width direction of the frame (11).

6. The air conditioner filter fixing and installation structure as described in any one of claims 1 to 5, characterized in that: The limiting slide (24) has a guide structure surface (26) at the end near the mounting port.

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