Air conditioner filter screen mounting structure

Abstract

The utility model relates to an air conditioner filter screen mounting structure, and belongs to the technical field of air conditioner indoor units. The elastic piece type limiting and fixing structures are additionally arranged at the two ends of the filter screen in the length direction to replace a common elastic clip structure on the side of the installation opening, the plug pins and the slot holes are additionally arranged on the side away from the installation opening to achieve auxiliary limiting, the reliability of the whole structure is fully guaranteed, auxiliary materials such as adhesive tape are omitted, and the cost is reduced. Procedures such as manual adhesive tape pasting are reduced, and the production efficiency is improved. 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 an air conditioner filter installation structure, 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 installation structure with 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 installation structure, including a filter and an air conditioner housing. The filter includes a mesh body and a frame. The outer periphery of the frame is a rectangular frame structure. The mesh body is fixedly installed inside the frame. The air conditioner housing has an air inlet. A filter positioning and installation cavity for fixing the filter is provided at the outer end face of the air inlet. The filter positioning and installation cavity includes an installation opening, 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 and second side walls are arranged opposite to each other at both ends of the length direction of the air inlet. The installation opening and the third side wall are arranged opposite to each other at both ends of the width direction of the air inlet. The installation opening is used for the filter to slide in and out along its width direction. Limiting protrusions are fixedly provided on the first and second side walls respectively. A limiting groove is provided on the side of the limiting protrusion facing the third side wall, and the limiting groove is connected to the limiting groove. The limiting protrusions intersect with the outer surface of the side end face of the frame. The limiting groove has at least a first limiting surface arranged opposite to the bottom wall of the mounting cavity and a second limiting surface arranged opposite to the third side wall. The side end face of the frame is provided with spring pieces corresponding to the limiting protrusions and relief grooves for accommodating the spring pieces. One end of the spring piece is connected to the side of the relief groove near the third side wall, and the other end is a free end. When the spring piece is in its natural state, the free end of the spring piece extends outward at an angle relative to the relief groove. The third side wall is provided with slot holes, and the side end face of the frame is provided with pins corresponding to the slot holes. The axis of the pins is set along the width direction of the frame. When the filter screen slides into the filter screen positioning and mounting cavity and the pins and slot holes form a plug-in engagement, the free ends of the spring pieces are correspondingly engaged in the limiting grooves. When the spring pieces are subjected to external force, the spring pieces can retract into the relief grooves so that the filter screen can be slidably removed from the filter screen positioning and mounting cavity.

[0006] To facilitate processing and assembly, and to make the structure simple and reliable, a further preferred embodiment is that the first sidewall and the second sidewall are respectively fixedly provided with two limiting protrusions distributed at intervals, and the limiting protrusions of the first sidewall and the limiting protrusions of the second sidewall are arranged symmetrically.

[0007] To facilitate processing and assembly, and to make the structure simple and reliable, a further preferred embodiment is that the end face of the limiting protrusion away from the bottom wall of the mounting cavity is flush with the corresponding outer end face of the first side wall and the outer end face of the second side wall; the end face of the limiting protrusion close to the bottom wall of the mounting cavity intersects with the bottom wall of the mounting cavity, and the end face of the limiting groove close to the bottom wall of the mounting cavity intersects with the bottom wall of the mounting cavity.

[0008] To facilitate assembly, a further preferred embodiment is that the outer surface of the limiting protrusion facing the side end of the frame is provided with a first guide structure surface at the end near the mounting opening.

[0009] To facilitate assembly, a further preferred embodiment is that the first sidewall and the second sidewall are respectively provided with a second guide structure surface at the end near the mounting opening.

[0010] To facilitate processing and assembly, and to make the structure simple and reliable, a further preferred option is that the radial cross-section of the pin is rectangular, and a third guide structure surface is provided on the end face of the pin away from the frame along its circumference.

[0011] To make the structure more reliable, a further preferred option is to have multiple slot holes spaced apart along the length of the third sidewall.

[0012] The beneficial effects of this utility model are as follows: By adding spring-loaded limiting and fixing structures at both ends of the filter screen along its length to replace the ordinary elastic clip structure on the installation port side, and by adding a pin and slot hole on the side away from the installation port to achieve auxiliary limiting, the reliability of the overall structure is fully guaranteed. This eliminates the need for auxiliary materials such as tape, reduces manual tape application, and improves production efficiency. Furthermore, during filter screen assembly, it is only necessary to simply slide it along a straight line into the filter screen positioning and installation cavity, eliminating the need for rotating and pressing the elastic clip, making assembly more convenient and faster. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model after assembly.

[0014] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0015] Figure 3 This is a three-dimensional structural diagram of the filter screen in this utility model.

[0016] Figure 4 yes Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0017] Figure 5 This is a three-dimensional structural diagram of the air conditioner housing in this utility model.

[0018] Figure 6 yes Figure 5 A magnified schematic diagram of the structure at point C.

[0019] Figure 7 yes Figure 5 A magnified schematic diagram of the structure at point D.

[0020] Figure 8This is a schematic diagram of the structure of the air conditioner housing after being cut along the width of the filter screen in this utility model.

[0021] Figure 9 yes Figure 8 A magnified schematic diagram of the structure at point E in the middle.

[0022] Figure 10 This is a schematic diagram of the assembly process of this utility model. Figure 1 (Only one end is shown).

[0023] Figure 11 This is a schematic diagram of the assembly process of this utility model. Figure 2 (Only one end is shown).

[0024] Figure 12 This is a schematic diagram of the assembly process of this utility model. Figure 3 (Only one end is shown).

[0025] The components in the diagram are labeled as follows: filter screen 10, frame 11, spring 12, clearance groove 13, pin 14, air conditioner housing 20, first side wall 21, second side wall 22, third side wall 23, limiting protrusion 24, limiting groove 25, first limiting surface 26, second limiting surface 27, slot hole 28, first guide structure surface 31, second guide structure surface 32, third guide structure surface 33. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] like Figures 1 to 12As 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 air inlet along its length. The mounting port and the third sidewall 23 are arranged opposite each other at both ends of the air inlet along its width. The mounting port is used for the filter screen 10 to slide in and out along its width. The first sidewall 21 and the second sidewall 22 are respectively fixedly provided with limiting protrusions 24. The side of the limiting protrusion 24 facing the third sidewall 23 is provided with a limiting groove 25. The limiting groove 25 and the outer surface of the limiting protrusion 24 facing the side end face of the frame 11 are connected. The intersecting groove (i.e., the limiting groove 25 extends to the outer surface of the limiting protrusion 24 facing the side end face of the frame 11, so that the spring piece 12 can be engaged and disengaged from the limiting groove 25) has at least a first limiting surface 26 arranged opposite to the bottom wall of the mounting cavity and a second limiting surface 27 arranged opposite to the third side wall 23. After the filter screen 10 is installed, the first limiting surface 26 plays a limiting role in the thickness direction of the filter screen 10, and the second limiting surface 27 works with the third side wall 23 to play a limiting role in the width direction of the filter screen 10. The side end face of the frame 11 is provided with spring pieces 12 corresponding to the limiting protrusions 24 and relief grooves 13 for accommodating the spring pieces 12. One end of the spring piece 12 is connected to the side of the relief groove 13 near the third side wall 23, and the other end is a free end. When the spring piece 12 is in its natural state, the free end of the spring piece 12 extends outward at an angle relative to the relief groove 13. The third side wall 23 is provided with slot holes 28, and the side end face of the frame 11 is provided with pins 14 corresponding to the slot holes 28. The axis of the pins 14 is set along the width direction of the frame 11. When the filter screen 10 slides into the filter screen positioning and mounting cavity and the pins 14 and the slot holes 28 form a plug-in engagement, the free ends of the spring pieces 12 are correspondingly engaged in the limiting grooves 25. When the spring piece 12 is subjected to external force, the spring piece 12 can retract into the relief groove 13, so that the filter screen 10 can be slidably removed from the filter screen positioning and mounting cavity. For details, please refer to [reference needed]. Figure 1 and Figure 2Since the free end of the spring 12 extends outward at an angle relative to the clearance groove 13 when the spring 12 is in its natural state, there will inevitably be a certain installation gap between the first side wall 21 and the second side wall 22 and the side end face of the frame 11 after the filter screen 10 is installed. When removing the filter screen 10, simply insert a small tool into this installation gap and squeeze the spring 12. The spring 12 will retract into the clearance groove 13. At this time, pull the filter screen 10 towards the installation opening to easily remove it. The spring 12 can retract partially or completely into the clearance groove 13, as long as it does not affect the normal removal of the filter screen 10. Ideally, pressing the spring 12 on both sides towards the middle will cause the outer surface of the spring 12 to be flush with the side end face of the frame 11, that is, the spring 12 is completely retracted into the clearance groove 13.

[0028] This invention utilizes the snap-fit ​​connection between the aforementioned spring piece 12 and the limiting groove 25, and adds a pin 14 and a slot hole 28 on the side away from the installation opening to achieve auxiliary limiting, thus fully ensuring the reliability of the overall structure. It eliminates the need for auxiliary materials such as tape, reduces manual tape application, and improves production efficiency. Furthermore, when assembling the filter screen 10, it only requires a simple linear sliding motion to snap it into the filter screen positioning and installation cavity, eliminating the need for rotating and pressing the elastic clip, making assembly more convenient and faster.

[0029] To facilitate processing and assembly, and to make the structure simple and reliable, the first sidewall 21 and the second sidewall 22 are respectively fixedly provided with two limiting protrusions 24 distributed at intervals, and the limiting protrusions 24 of the first sidewall 21 and the limiting protrusions 24 of the second sidewall 22 are arranged symmetrically, that is, the four limiting protrusions 24 are distributed in a rectangular array.

[0030] To facilitate processing and assembly, and to make the structure simple and reliable, the end face of the limiting protrusion 24 away from the bottom wall of the mounting cavity is flush with the outer end face of the corresponding first side wall 21 and the outer end face of the second side wall 22; the end face of the limiting protrusion 24 near the bottom wall of the mounting cavity intersects with the bottom wall of the mounting cavity, and the end face of the limiting groove 25 near the bottom wall of the mounting cavity intersects with the bottom wall of the mounting cavity.

[0031] To facilitate assembly, the outer surface of the limiting protrusion 24 facing the side end of the frame 11 is provided with a first guide structure surface 31 at the end near the mounting opening. The first guide structure surface 31 can generally be an inclined surface or an arc surface, or other guide curved surfaces.

[0032] To facilitate assembly, the first sidewall 21 and the second sidewall 22 are respectively provided with a second guide structure surface 32 at the end near the mounting opening. The second guide structure surface 32 can generally be an inclined surface or an arc surface, or other guide curved surfaces.

[0033] To facilitate processing and assembly, and to make the structure simple and reliable, the radial section of the pin 14 is rectangular (without considering the possible addition of a guide bevel structure or a rounded corner structure at the corner of the rectangle). The end face of the pin 14 away from the frame 11 is provided with a third guide structure surface 33 along its circumference, which is equivalent to all four sides of the end face of the pin 14 being provided with a third guide structure surface 33. The third guide structure surface 33 can generally be a slope or an arc surface, or other guide curved surfaces.

[0034] To make the structure more reliable, multiple slot holes 28 are spaced apart along the length of the third sidewall 23. The specific number can be set according to the actual situation. In this embodiment, five slot holes 28 are designed, and correspondingly, five pins 14 are also designed.

[0035] See Figures 10 to 12 In a preferred embodiment of this utility model, a total of four spring pieces 12 are arranged in a rectangular array, and four limiting protrusions 24 are correspondingly provided. The two spring pieces 12 closest to the third sidewall 23 form the first group, and the other two spring pieces 12 form the second group; similarly, the two limiting protrusions 24 closest to the third sidewall 23 form the first group, and the other two limiting protrusions 24 form the second group. The specific assembly process is as follows: the end of the filter screen 10 with the pin 14 first enters the mounting port (guided by the second guide structure surface 32). When the first group of spring pieces 12 on the filter screen 10 begins to contact the second group of limiting protrusions 24, that is, when the first group of spring pieces 12 begins to contact the first guide structure surface 31 on the second group of limiting protrusions 24, the first group of spring pieces 12 begins to deform until it is completely deformed and passes through the second group of limiting protrusions 24; when the first group of spring pieces 12 on the filter screen 10 begins to contact the first group of limiting protrusions 24, that is, when the first group of spring pieces 12 begins to contact the first guide structure surface 31 on the first group of limiting protrusions 24... At the same time, the second set of spring pieces 12 on the filter screen 10 also begins to contact the second set of limiting protrusions 24, that is, the second set of spring pieces 12 begins to contact the first guide structure surface 31 on the second set of limiting protrusions 24. At this time, the first set of spring pieces 12 and the second set of spring pieces 12 begin to deform simultaneously until they are completely deformed and pass through the first set of limiting protrusions 24 and the second set of limiting protrusions 24 respectively. At this time, the pin 14 on the filter screen 11 is also fully inserted into the slot hole 28. The first limiting surface 26 and the second limiting surface 27 on the four limiting protrusions 24 respectively restrict the movement of the four spring pieces 12. For the structure of the filter screen 10 after installation, please refer to [reference needed]. Figure 1 and Figure 2 .

Claims

1. An air conditioner filter installation structure, comprising a filter (10) and an air conditioner housing (20), wherein the filter (10) comprises 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 and installation cavity for fixing the filter (10) is provided at the outer end face of the air inlet, the filter positioning and installation cavity comprises 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 back of the frame (11), the first side wall (21) and the second side wall (22) are arranged oppositely at both ends of the length direction of the air inlet, and the installation port and the third side wall (23) are arranged oppositely at both ends of the width direction of the air inlet, the installation port is used for the filter (10) to slide into and out along its width direction, characterized in that: The first sidewall (21) and the second sidewall (22) are respectively fixedly provided with limiting protrusions (24). The side of the limiting protrusion (24) facing the third sidewall (23) is provided with a limiting groove (25), and the limiting groove (25) intersects with the outer surface of the side of the limiting protrusion (24) facing the side end face of the frame (11). The limiting groove (25) has at least a first limiting surface (26) arranged opposite to the bottom wall of the mounting cavity and a second limiting surface (27) arranged opposite to the third sidewall (23). The side end face of the frame (11) is provided with spring pieces (12) corresponding to the limiting protrusions (24) and a relief groove (13) for accommodating the spring pieces (12). One end of the spring piece (12) is connected to the side of the relief groove (13) near the third sidewall (23), and the other end is connected to the side of the frame (11) near the third sidewall (23). As the free end, when the spring piece (12) is in its natural state, the free end of the spring piece (12) extends outward at an angle relative to the relief groove (13); the third side wall (23) is provided with a slot hole (28), and the side end face of the frame (11) is provided with a pin (14) corresponding to the slot hole (28), and the axis of the pin (14) is set along the width direction of the frame (11); when the filter screen (10) slides into the filter screen positioning and mounting cavity and the pin (14) and the slot hole (28) form a plug-in engagement, the free end of the spring piece (12) is correspondingly engaged in the limiting groove (25); when the spring piece (12) is subjected to external force, the spring piece (12) can retract into the relief groove (13) so that the filter screen (10) can slide out of the filter screen positioning and mounting cavity.

2. The air conditioner filter installation structure as described in claim 1, characterized in that: The first sidewall (21) and the second sidewall (22) are respectively fixedly provided with two limiting protrusions (24) distributed at intervals, and the limiting protrusions (24) of the first sidewall (21) and the limiting protrusions (24) of the second sidewall (22) are arranged symmetrically.

3. The air conditioner filter installation structure as described in claim 1, characterized in that: The end face of the limiting protrusion (24) away from the bottom wall of the mounting cavity is flush with the outer end face of the corresponding first side wall (21) and the outer end face of the second side wall (22); the end face of the limiting protrusion (24) close to the bottom wall of the mounting cavity intersects with the bottom wall of the mounting cavity, and the end face of the limiting groove (25) close to the bottom wall of the mounting cavity intersects with the bottom wall of the mounting cavity.

4. The air conditioner filter installation structure as described in claim 1, characterized in that: The outer surface of the limiting protrusion (24) facing the side end face of the frame (11) has a first guide structure surface (31) at the end near the mounting port.

5. The air conditioner filter installation structure as described in claim 1, characterized in that: The first sidewall (21) and the second sidewall (22) are respectively provided with a second guide structure surface (32) at the end near the installation port.

6. The air conditioner filter installation structure as described in claim 1, characterized in that: The radial section of the pin (14) is rectangular, and a third guide structure surface (33) is provided on the end face of the pin (14) away from the frame (11) along its circumference.

7. The air conditioner filter installation structure as described in any one of claims 1 to 6, characterized in that: Multiple slot holes (28) are spaced apart along the length of the third sidewall (23).

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