A rooftop air conditioner and its filter installation structure

Abstract

This utility model discloses a rooftop air conditioner and its filter installation structure. The rooftop air conditioner has a return air vent. The filter installation structure includes: a filter support bracket disposed on one side of the return air vent; and a filter fastening bracket, one end of which is connected to the filter and the other end to the rooftop air conditioner. The filter is secured into the filter support bracket via the filter fastening bracket. This utility model does not require significant modifications to existing rooftop air conditioners; it only requires a filter support bracket to install the filter, meeting the installation requirements of filters of corresponding sizes and specifications. Furthermore, the filter fastening bracket allows for quick installation, maintenance, and replacement of the filter by pushing it into the support bracket. Moreover, by placing the filter support bracket on the side of the return air vent, it ensures that the air in the original return air vent is completely filtered by the filter, avoiding insufficient filtration.

Description

Technical Field

[0001] This utility model relates to the field of roofing machine technology, specifically to a roofing machine and its filter installation structure. Background Technology

[0002] Rooftop air conditioners have filters at the return air vents to intercept impurities in the air, protect internal components, and improve return air quality. However, the protection rating, thickness, and size of the filters used vary in different regions. For example, many overseas customers use high MERV protection level paper filters, which can be up to two inches thick and have whole-inch dimensions. The filter installation structure of some rooftop units is incompatible with these filters, requiring the fabrication of new rooftop units to meet customer needs. This results in high equipment costs and is time-consuming and labor-intensive.

[0003] However, rooftop air conditioners already manufactured cannot undergo significant structural modifications. Therefore, the filter installation structure cannot be redesigned, and filters of the correct size cannot be installed. This often necessitates long-distance transport of the appropriate filter size, leading to inconvenience and high transportation costs. Some rooftop air conditioners are modified to accommodate different filter sizes, usually at the original filter installation location. This modification is complex, labor-intensive, and prone to damaging the internal equipment. Furthermore, the modified filters are difficult to maintain and replace, resulting in inconvenience in both use and maintenance. Utility Model Content

[0004] To address the problem that existing rooftop air conditioners cannot accommodate filters of different specifications, this utility model provides a rooftop air conditioner and its filter installation structure.

[0005] The present invention adopts the following technical solution.

[0006] The first aspect of this utility model discloses a filter installation structure for a rooftop air conditioner, wherein a return air vent is provided inside the rooftop air conditioner, and the filter installation structure includes:

[0007] A filter support is provided on one side of the return air vent.

[0008] The filter screen fastening bracket has one end connected to the filter screen and the other end connected to the roof unit. The filter screen is secured into the filter screen bracket by the filter screen fastening bracket.

[0009] Preferably, the filter support includes: a first filter side support, a second filter side support, an upper filter support, and a lower filter support. The first filter side support and the second filter side support are connected to the roof unit on one side, and connected to the upper filter support and the lower filter support on the other side, respectively.

[0010] Preferably, a filter positioning bracket is provided on the first filter side bracket, and a sliding groove is provided in the lower filter bracket, so that the filter moves along the sliding groove and connects with the filter positioning bracket.

[0011] Preferably, the filter screen fastening bracket includes a front clamping structure and a rear clamping structure. One end of the front clamping structure and the rear clamping structure are connected to form a slot. The filter screen is inserted into the slot, and the filter screen is moved by the filter screen fastening bracket.

[0012] Preferably, the filter fastening bracket further includes: a bracket push-pull structure, a bracket connecting plate, and a maintenance baffle. One end of the bracket push-pull structure is connected to the filter rear clamping structure, and the other end is connected to the bracket connecting plate. The bracket connecting plate is connected to the maintenance baffle, and the maintenance baffle is detachably connected to the roofing unit.

[0013] The second aspect of this utility model discloses a rooftop unit, including: a chassis, a side plate and a side return air filter fixing bracket, and also includes the filter installation structure of the rooftop unit;

[0014] One side of the chassis is connected to the side plate, and the other side is connected to the side return air filter fixing bracket. The filter mounting structure is arranged between the chassis, the side plate, and the side return air filter fixing bracket.

[0015] Preferably, the side return air filter fixing bracket includes: an upper fixing bracket for the side return air filter and a lower fixing bracket for the side return air filter, both of which are connected to the filter bracket.

[0016] Preferably, the side plate, the filter support, and the lower fixing support of the side return air filter are all connected to the chassis.

[0017] Preferably, one side of the filter support is connected to the side plate, and the other side is connected to the side return air filter fixing support.

[0018] Preferably, the side plate is provided with a maintenance port corresponding to the position of the filter screen bracket, and the filter screen fastening bracket drives the filter screen to move through the maintenance port, so that the filter screen is connected to the filter screen bracket.

[0019] The beneficial effects of this utility model are as follows, compared with the prior art:

[0020] This invention requires no major modifications to existing rooftop air conditioners. It only necessitates the installation of a filter support bracket to accommodate filters of corresponding sizes and specifications, thus improving the user experience. The structure is simple, easy to operate, and cost-effective. Furthermore, the filter is quickly installed by pushing it into the bracket via the filter fastening bracket, and can be easily repaired or replaced by pulling it out. This improves installation and maintenance efficiency and makes operation and maintenance more convenient. Moreover, by placing the filter support bracket on the return air vent side, it ensures that the air in the original return air vent is completely filtered, preventing incomplete filtration.

[0021] This invention does not require altering the original structure of the rooftop unit. It simply connects the filter screen bracket to the interior of the rooftop unit, resulting in a simple structure, convenient connection, and low equipment cost. The filter screen moves along the sliding groove in the lower support of the filter screen. On the one hand, the sliding groove guides the movement and improves the stability of the movement. On the other hand, the sliding groove limits the lower side of the filter screen, making the connection more stable after the filter screen is installed and preventing the bottom of the filter screen from detaching from the rooftop unit. At the same time, the filter screen positioning bracket limits and fixes the end of the filter screen, further improving the connection stability.

[0022] This invention allows for quick filter installation by pushing the filter screen fastening bracket to move the filter screen and connect it to the bracket. The filter screen is then fixed by connecting the maintenance baffle to the roof unit, thus limiting and fixing both ends of the filter screen and improving connection stability. When the filter screen needs to be replaced or repaired, the maintenance baffle is pulled out to remove the filter screen, and the new filter screen is reconnected to the filter screen fastening bracket, enabling quick filter screen replacement and improving maintenance efficiency. The operation is convenient and fast.

[0023] The filter installation structure of this utility model does not require the removal and replacement of the internal equipment of the rooftop unit. It can be directly installed inside the rooftop unit, making installation and removal more convenient. It retains the original filter, keeps the equipment cost low, and avoids damage to the internal equipment of the rooftop unit caused by modification.

[0024] This utility model relates to a filter screen fastening bracket that connects the filter screen to the filter screen bracket via a maintenance port, enabling the filter screen to be installed and removed. It is convenient to use, improves maintenance and installation efficiency, and has a simple structure. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the roofing machine of this utility model;

[0026] Figure 2 This is a structural diagram of the first filter screen side bracket and the second filter screen side bracket of this utility model;

[0027] Figure 3This is a structural diagram of the filter screen support of this utility model;

[0028] Figure 4 This is a schematic diagram of the installation of the filter screen fastening bracket of this utility model;

[0029] Figure 5 for Figure 4 Enlarged view of A in the middle;

[0030] Figure 6 This is a structural diagram of the filter screen fastening bracket of this utility model;

[0031] Figure 7 This is a structural diagram of the filter screen installation structure of this utility model;

[0032] In the picture:

[0033] 1. Side return air filter; 11. Upper fixing bracket for side return air filter; 12. Lower fixing bracket for side return air filter;

[0034] 2. Bottom return air filter;

[0035] 3. Evaporator;

[0036] 4. Chassis; 41. Chassis fold; 42. First chassis; 43. Second chassis;

[0037] 5. Filter screen support; 51. First filter screen side support; 52. Second filter screen side support; 53. Filter screen upper support; 531. Connecting part; 532. Stepped part; 533. Upper support part; 54. Filter screen lower support; 55. Filter screen positioning support; 56. Upper connecting piece; 57. Lower connecting piece; 58. Overlapping part; 59. Side support part;

[0038] 6. Filter screen;

[0039] 7. Side panel; 71. Maintenance port;

[0040] 8. Filter screen fastening bracket; 81. Filter screen front clamping structure; 82. Filter screen rear clamping structure; 83. Bracket push-pull structure; 84. Bracket connecting plate; 85. Maintenance baffle. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The embodiments described in this application are merely some embodiments of this utility model, not all embodiments. Based on the spirit of this utility model, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this utility model.

[0042] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] like Figures 1-7 As shown, Embodiment 1 of this utility model discloses a filter installation structure for a rooftop air conditioner, wherein a return air vent is provided inside the rooftop air conditioner;

[0044] The filter installation structure includes: a filter bracket 5 and a filter fastening bracket 8. The filter bracket 5 is set on the side of the return air inlet inside the roof unit and is used to fix filters 6 of different specifications to meet the filter requirements of different regions.

[0045] One end of the filter screen fastening bracket 8 is connected to the filter screen 6, and the other end is connected to the roof unit. The filter screen 6 is secured into the filter screen bracket 5 by the filter screen fastening bracket 8, which facilitates the maintenance and replacement of the filter screen 6.

[0046] This utility model does not require major changes to existing rooftop generators. It only requires the installation of filter screen bracket 5 to install filter screen 6, so as to meet the installation requirements of filter screen of corresponding size and specifications, which improves the user experience. The structure is simple and the equipment cost is low.

[0047] Meanwhile, the filter screen 6 is moved and snapped into the filter screen bracket 5 by the filter screen fastening bracket 8, so as to realize the quick installation of the filter screen 6. The filter screen 6 is also pulled out by the filter screen fastening bracket 8, so as to realize the quick repair and replacement of the filter screen, which improves the efficiency of installation and maintenance and makes the use and maintenance more convenient.

[0048] Furthermore, by placing the filter support 5 on one side of the return air inlet, it can be ensured that the air in the original return air inlet is completely filtered through the filter, thus avoiding insufficient filtration.

[0049] like Figure 2 and Figure 3 As shown, the filter support 5 includes: a first filter side support 51, a second filter side support 52, an upper filter support 53, and a lower filter support 54. The first filter side support 51 and the second filter side support 52 are symmetrically arranged inside the roof machine. The first filter side support 51 and the second filter side support 52 are connected to the inner wall of the roof machine on the side away from each other. The upper end of the first filter side support 51 and the second filter side support 52 are connected through the upper filter support 53 and the lower end is connected through the lower filter support 54.

[0050] The upper support 53 and lower support 54 of the filter screen are designed to guide the movement of the filter screen 6, making it easier for the filter screen 6 to move and be fixed along the filter screen support 5. They also serve to improve the structural strength and connection stability of the filter screen support 5, preventing it from shaking or being damaged. Additionally, they are used for sealing, preventing airflow from affecting the filtration effect.

[0051] Preferably, but not limitingly, the first filter side bracket 51 and the second filter side bracket 52 can be designed to be tilted to accommodate the installation of filters 6 of different sizes.

[0052] like Figure 2 and Figure 7 As shown, both the first filter side bracket 51 and the second filter side bracket 52 include: an overlapping part 58, a side bracket part 59, an upper connecting piece 56, and a lower connecting piece 57. The overlapping part 58 is provided on the upper side of the side bracket part 59. The upper connecting piece 56 is provided on the upper end of the side bracket part 59 near the inner wall of the roof machine, and the lower connecting piece 57 is provided on the lower end. Thus, the first and second filter side brackets are connected to the roof machine through the upper connecting piece 56 and the lower connecting piece 57.

[0053] like Figure 5 As shown, the filter screen support 53 includes: a connecting part 531, a step part 532, and an upper support part 533. The upper support part 533 has an L-shaped structure. The upper part of the upper support part 533 is flush with the overlapping part 58, and the lower part is flush with the side support part 59. The upper support part 533 has connecting parts 531 at both ends. The connecting parts 531 and the upper support part 533 are not flush, and the connection point forms a step part 532.

[0054] The upper support bracket 53 of the filter screen is connected to the first filter screen side bracket 51 and the second filter screen side bracket 52 respectively through the connecting part 531. Because the connecting part 531 and the upper support part 533 are not flush, the connection gap between the upper support part 533 and the first and second filter screen side brackets is eliminated, so that the upper support part 533 and the first and second filter screen side brackets are always flush, ensuring the smooth movement of the filter screen 6 and avoiding the filter screen 6 from getting stuck or even stopping due to the existence of connection gaps.

[0055] The filter screen support 53 of this utility model is connected to the first and second filter screen side supports through the connecting part 531, so as to achieve precise alignment, improve the stability and efficiency of filter screen 6 installation, and make it easy to install.

[0056] like Figure 3 and Figure 7 As shown, a filter positioning bracket 55 is provided on one outer wall of the first filter side bracket 51.

[0057] The filter screen lower support 54 has a U-shaped structure with an internal groove, allowing the filter screen 6 to move along the groove until the end of the filter screen 6 engages with the filter screen positioning support 55. This achieves the goal of fixing the bottom of the filter screen 6 through the groove and fixing the end of the filter screen 6 through the filter screen positioning support 55, thus ensuring a stable connection between the filter screen 6 and the filter screen support 5 and guiding its movement.

[0058] This utility model does not require any changes to the original structure of the rooftop unit. It only requires connecting the filter screen bracket 5 to the inside of the rooftop unit. The structure is simple, the connection is convenient, and the equipment cost is low. The filter screen 6 moves along the slide groove in the lower support 54 of the filter screen. On the one hand, the slide groove guides the movement and improves the stability of the movement. On the other hand, the slide groove limits the lower side of the filter screen, making the connection more stable after the filter screen 6 is installed, and preventing the bottom of the filter screen 6 from detaching from the rooftop unit after installation. At the same time, the filter screen positioning bracket 55 limits and fixes the end of the filter screen 6, further improving the connection stability.

[0059] like Figure 6 and 7 As shown, the filter screen fastening bracket 8 includes: a front clamping structure 81, a rear clamping structure 82, a bracket push-pull structure 83, a bracket connecting plate 84, and a maintenance baffle 85. One end of the rear clamping structure 82 is connected to the front clamping structure 81, and the other end is connected to the bracket push-pull structure 83. One end of the bracket push-pull structure 83 is connected to the bracket connecting plate 84, and the side of the bracket connecting plate 84 is connected to the maintenance baffle 85.

[0060] The connection between the bracket connecting plate 84 and the maintenance baffle 85 increases the connection area with the maintenance baffle 85, making the connection more stable and facilitating subsequent pushing and pulling movement via the maintenance baffle 85. The maintenance baffle 85 and the roof unit are connected to fix the filter screen 6, so that the filter screen fastening bracket 8 and the filter screen positioning bracket 55 cooperate to limit and fix both ends of the filter screen 6, further improving the connection stability of the filter screen 6 and preventing the filter screen 6 from falling off during operation.

[0061] like Figure 6 and Figure 7 As shown, the front clamping structure 81 of the filter screen is an L-shaped structure. The front clamping structure 81 of the filter screen and the rear clamping structure 82 of the filter screen are connected and a slot is formed at the connection. The filter screen 6 is inserted into the slot to achieve a stable connection with the filter screen fastening bracket 8. The filter screen 6 is moved by the filter screen fastening bracket 8, which prevents the filter screen 6 from falling off during installation and disassembly, thus improving installation efficiency.

[0062] The bend of the front clamping structure 81 of the filter screen is an acute angle, which is used to better clamp the filter screen 6 and prevent the filter screen 6 from falling off.

[0063] This invention enables the filter screen 6 to move and engage with the filter screen bracket 5 by pushing the filter screen fastening bracket 8, thus quickly installing the filter screen 6. The filter screen is fixed by the connection between the maintenance baffle 85 and the roof unit, thereby limiting and fixing both ends of the filter screen 6 and improving connection stability. When the filter screen 6 needs to be replaced or repaired, the maintenance baffle 85 is pulled to remove the filter screen 6, and the new filter screen 6 is reconnected to the filter screen fastening bracket 8, enabling quick replacement of the filter screen 6, improving the efficiency of use and maintenance, and making the operation convenient and quick.

[0064] Preferably, but not limitingly, the filter installation structure of this utility model can be a sheet metal part, and can be installed on the roof unit by means of screw fastening.

[0065] like Figures 1-7 As shown, Embodiment 2 of this utility model discloses a rooftop air conditioner, which includes: a side return air filter 1, a bottom return air filter 2, a side return air filter fixing bracket, a chassis 4, an evaporator 3, and a side plate 7, and also includes the filter installation structure.

[0066] An evaporator 3 is installed on one side of the rooftop unit, a bottom return air vent is provided at the bottom of the other side, and a side return air vent is provided on the side.

[0067] The bottom return air inlet is equipped with a bottom return air filter 2, and the side return air inlet is equipped with a side return air filter 1.

[0068] One end of the bottom return air filter 2 is connected to the side return air filter 1 via the chassis 4, and the other end is connected to the side plate 7 via the chassis 4.

[0069] The filter installation structure is set between the chassis 4, the side plate 7, and the side return air filter fixing bracket.

[0070] The bottom return air filter 2 is provided with a filter installation structure on the side near the evaporator 3, so that the air drawn in by the bottom return air filter 2 can be completely filtered by the filter 6 before flowing to the evaporator 3, achieving full filtration and improving filtration efficiency and performance.

[0071] It is understood that the rooftop unit mostly returns air through the bottom return air filter 2. Embodiments 1 and 2 of this utility model are filter installation structures designed for the bottom return air filter 2 of the rooftop unit. They can also be designed for the side return air filter 1 of the rooftop unit. The difference is that the filter installation structure can be installed at the position of the side return air filter 1.

[0072] The side return air filter fixing bracket includes: an upper fixing bracket 11 and a lower fixing bracket 12 for the side return air filter, both of which are connected to the filter bracket 5.

[0073] The upper side of the side return air filter 1 is connected to the upper fixed bracket 11 of the side return air filter, and the lower side is connected to the lower fixed bracket 12 of the side return air filter.

[0074] The chassis 4 includes: a first chassis 42 and a second chassis 43, wherein the first chassis 42 and the second chassis 43 are provided with chassis flanges 41 on all four sides;

[0075] The bottom return air filter 2 is connected to the chassis fold 41 on the first chassis 42 and the chassis fold 41 on the second chassis 43 at its left and right ends, respectively. One side of the first chassis 42 is connected to the lower fixed bracket 12 of the side return air filter through the chassis fold 41, and one side of the second chassis 43 is connected to the bottom of the side plate 7 through the chassis fold 41.

[0076] The chassis 4 of this utility model is connected to the chassis folded edge 41, the bottom return air filter 2, the side plate 7, the filter support 5, and the side return air filter lower fixed support 12 respectively. The connection is more stable and convenient, the overall integrity is stronger, and the rigidity and deformation resistance of the bottom of the roof machine are enhanced. At the same time, the chassis folded edge 41 has better sealing performance, preventing airflow from affecting the operating efficiency.

[0077] The first filter screen side bracket 51 and the second filter screen side bracket 52 are both provided with upper connecting pieces 56 on the upper end of the side away from each other, and lower connecting pieces 57 are both provided on the lower end of each other.

[0078] The upper connecting piece 56 on the first filter side bracket 51 is connected to the upper fixed bracket 11 of the side return air filter, and the lower connecting piece 56 is connected to the first chassis 42 and the lower fixed bracket 12 of the side return air filter. The upper connecting piece 56 and the lower connecting piece 57 on the second filter side bracket 52 are both connected to the side plate 7. Thus, the filter bracket 5 is fixed inside the roof unit through the first filter side bracket 51 and the second filter side bracket 52.

[0079] The upper connecting piece 56 and the lower connecting piece 57 are both connected to the inside of the roofing machine, which increases the contact area and improves the connection stability.

[0080] The filter installation structure of this utility model does not require the removal or replacement of the internal equipment of the rooftop unit. It can be directly installed inside the rooftop unit, making installation and removal more convenient. It retains the original filter, is easy to operate, has low equipment cost, and avoids damage to the internal equipment of the rooftop unit caused by modification.

[0081] The side plate 7 is provided with a maintenance port 71 corresponding to the position of the filter screen bracket 5. One end of the filter screen fastening bracket 8 is engaged with the filter screen 6, thereby driving the filter screen 6 through the maintenance port 71 until the other end is engaged with the filter screen positioning bracket 55. At this time, the maintenance baffle 85 is attached to the outer wall of the side plate 7, and the maintenance baffle 85 and the side plate 7 are detachably connected, thereby fixing the filter screen 6 inside the roof machine. During maintenance, the maintenance baffle 85 and the side plate 7 are separated, and the filter screen 6 is pulled out through the maintenance baffle 85 for quick replacement.

[0082] The first filter screen side bracket 51 is provided with a filter screen positioning bracket 55 facing the bottom return air filter screen 2. When the bottom return air filter screen 2 draws in air, the pressure difference formed causes the filter screen 6 to be adsorbed on the filter screen bracket 5, achieving complete sealing and full filtration.

[0083] The filter screen fastening bracket 8 of this utility model drives the filter screen 6 to connect with the filter screen bracket 5 through the maintenance port 71. The filter screen 6 can be installed and removed through the maintenance port 71, which is convenient to use, improves maintenance and installation efficiency, and has a simple structure.

[0084] The working principle of this utility model is as follows: the first filter screen side bracket 51 is connected to the side return air filter screen fixing bracket and the chassis 4 through the upper and lower connecting pieces; the second filter screen side bracket 52 is connected to the side plate 7 through the upper and lower connecting pieces; the two ends of the upper filter screen bracket 53 are connected to the upper ends of the first and second filter screen side brackets respectively through the connecting parts 531; and the two ends of the lower filter screen bracket 54 are connected to the lower ends of the first and second filter screen side brackets.

[0085] Simultaneously, the filter screen positioning bracket 55 is installed on one side of the first filter screen side bracket 51, and the filter screen 6 is inserted into the slot on the filter screen fastening bracket 8. The filter screen 6 is pushed in through the maintenance port 71 on the side plate 7 by the filter screen fastening bracket 8, so that the bottom of the filter screen 6 slides into the sliding groove on the filter screen lower bracket 54. It moves along the sliding groove until the end of the filter screen 6 is inserted into the filter screen positioning bracket 55. At this time, the maintenance baffle 85 is attached to the side plate 7. The maintenance baffle 85 and the side plate 7 are detachably connected, thereby fixing the filter screen 6. One end of the filter screen 6 is positioned by the filter screen positioning bracket 55, one end is positioned by the filter screen fastening bracket 8, and the bottom is positioned by the filter screen lower bracket 54, so as to achieve a stable connection of the filter screen 6 and prevent the filter screen 6 from falling off during operation and causing it to fail to filter.

[0086] When the rooftop unit is running, the bottom return air filter 2 introduces air, which is then filtered through the filter 6 before entering the evaporator 3. The negative pressure during operation causes the filter 6 to be tightly adhered to the filter support 5, preventing gaps between the filter 6 and the filter support 5, thus achieving thorough filtration and improving filtration efficiency and performance.

[0087] When the filter screen 6 needs to be replaced, the maintenance baffle 85 is separated from the side plate 7. The filter screen 6 is moved out by pulling the maintenance baffle 85. The replacement filter screen 6 is then inserted into the slot on the filter screen fastening bracket 8 and pushed back in through the maintenance port 71, thus achieving quick replacement of the filter screen 6 and improving replacement efficiency and operational reliability.

[0088] It is understood that the dimensions of the filter screen bracket 5 and the filter screen fastening bracket 8 can be designed according to the specifications of the filter screen 6 to ensure that when the filter screen 6 presses against the filter screen positioning bracket 55, the maintenance baffle 85 is exactly in contact with the side plate 7, so as to ensure that filter screens of different specifications can be fixed.

[0089] Preferably, but not limitingly, the side return air filter upper fixing bracket 11, the side return air filter lower fixing bracket 12, the filter bracket 5, the maintenance baffle 85 and the side plate 7 can be fixed by drilling and bolting.

[0090] Preferably, but not limitingly, flexible materials can be provided on the first filter screen side bracket 51, the second filter screen side bracket 52, the upper filter screen bracket 53, the lower filter screen bracket 54, the filter screen positioning bracket 55, and the filter screen fastening bracket 56. On the one hand, this avoids damage to the equipment over a long period of time caused by rigid connections. On the other hand, it can prevent the filter screen 6 from shaking and causing abnormal noise while ensuring a seal, thereby reducing noise and improving the user experience.

[0091] The beneficial effects of this utility model are as follows, compared with the prior art:

[0092] This invention requires no major modifications to existing rooftop air conditioners. It only necessitates the installation of a filter support bracket to accommodate filters of corresponding sizes and specifications, thus improving the user experience. The structure is simple, easy to operate, and cost-effective. Furthermore, the filter is quickly installed by pushing it into the bracket via the filter fastening bracket, and can be easily repaired or replaced by pulling it out. This improves installation and maintenance efficiency and makes operation and maintenance more convenient. Moreover, by placing the filter support bracket on the return air vent side, it ensures that the air in the original return air vent is completely filtered, preventing incomplete filtration.

[0093] This invention does not require altering the original structure of the rooftop unit. It simply connects the filter screen bracket to the interior of the rooftop unit, resulting in a simple structure, convenient connection, and low equipment cost. The filter screen moves along the sliding groove in the lower support of the filter screen. On the one hand, the sliding groove guides the movement and improves the stability of the movement. On the other hand, the sliding groove limits the lower side of the filter screen, making the connection more stable after the filter screen is installed and preventing the bottom of the filter screen from detaching from the rooftop unit. At the same time, the filter screen positioning bracket limits and fixes the end of the filter screen, further improving the connection stability.

[0094] This invention allows for quick filter installation by pushing the filter screen fastening bracket to move the filter screen and connect it to the bracket. The filter screen is then fixed by connecting the maintenance baffle to the roof unit, thus limiting and fixing both ends of the filter screen and improving connection stability. When the filter screen needs to be replaced or repaired, the maintenance baffle is pulled out to remove the filter screen, and the new filter screen is reconnected to the filter screen fastening bracket, enabling quick filter screen replacement and improving maintenance efficiency. The operation is convenient and fast.

[0095] The filter installation structure of this utility model does not require the removal or replacement of the internal equipment of the rooftop unit. It can be directly installed inside the rooftop unit, making installation and removal more convenient. It retains the original filter, is easy to operate, has low equipment cost, and avoids damage to the internal equipment of the rooftop unit caused by modification.

[0096] This utility model relates to a filter screen fastening bracket that connects the filter screen to the filter screen bracket via a maintenance port, enabling the filter screen to be installed and removed. It is convenient to use, improves maintenance and installation efficiency, and has a simple structure.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A filter installation structure for a rooftop air conditioner, wherein a return air vent is provided inside the rooftop air conditioner, characterized in that, The filter installation structure includes: A filter support (5) is provided on one side of the return air inlet; The filter fastening bracket (8) is connected to the filter (6) at one end and to the roof machine at the other end. The filter (6) is inserted into the filter bracket (5) by the filter fastening bracket (8).

2. The filter installation structure for a rooftop air conditioner according to claim 1, characterized in that: The filter support (5) includes: a first filter side support (51), a second filter side support (52), an upper filter support (53), and a lower filter support (54). The first filter side support (51) and the second filter side support (52) are connected to the roof machine on one side, and connected to the upper filter support (53) and the lower filter support (54) on the other side, respectively.

3. The filter installation structure for a rooftop air conditioner according to claim 2, characterized in that: A filter positioning bracket (55) is provided on the first filter side bracket (51), and a sliding groove is provided in the filter lower bracket (54) so ​​that the filter (6) can move along the sliding groove and connect with the filter positioning bracket (55).

4. The filter installation structure for a rooftop air conditioner according to claim 1, characterized in that: The filter screen fastening bracket (8) includes a front clamping structure (81) and a rear clamping structure (82). One end of the front clamping structure (81) and the rear clamping structure (82) are connected to form a slot. The filter screen (6) is inserted into the slot and the filter screen (6) is moved by the filter screen fastening bracket (8).

5. The filter installation structure for a rooftop air conditioner according to claim 4, characterized in that: The filter screen fastening bracket (8) further includes: a bracket push-pull structure (83), a bracket connecting plate (84), and a maintenance baffle (85). One end of the bracket push-pull structure (83) is connected to the filter screen rear clamping structure (82), and the other end is connected to the bracket connecting plate (84). The bracket connecting plate (84) is connected to the maintenance baffle (85), and the maintenance baffle (85) is detachably connected to the roof machine.

6. A roofing machine, comprising: The chassis (4), side plate (7) and side return air filter fixing bracket are characterized in that they further include the filter installation structure of the roof unit according to any one of claims 1 to 5; The chassis (4) is connected to the side plate (7) on one side and to the side return air filter fixing bracket on the other side. The filter mounting structure is set between the chassis (4), the side plate (7) and the side return air filter fixing bracket.

7. A roofing machine according to claim 6, characterized in that: The side return air filter fixing bracket includes: a side return air filter upper fixing bracket (11) and a side return air filter lower fixing bracket (12), both of which are connected to the filter bracket (5).

8. A roofing machine according to claim 7, characterized in that: The side plate (7), the filter support (5), and the side return air filter lower fixing support (12) are all connected to the chassis (4).

9. A roofing machine according to claim 6, characterized in that: The filter support (5) is connected to the side plate (7) on one side and to the side return air filter fixing bracket on the other side.

10. A roofing machine according to claim 6, characterized in that: The side plate (7) is provided with a maintenance port (71) corresponding to the position of the filter screen bracket (5). The filter screen fastening bracket (8) drives the filter screen (6) to move through the maintenance port (71) so that the filter screen (6) is connected to the filter screen bracket (5).

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