Air purification device and patio air conditioner with the same

Abstract

The present invention discloses an air purification device and a patio air conditioner incorporating the same. The air purification device comprises a fresh air foam frame with a central return air inlet and peripheral air outlets. A filter assembly is provided within the return air inlet, comprising a filter frame and an adsorption mesh member. The adsorption mesh member can be quickly connected to and removed from the filter frame via a peripherally disposed elastic paddle mechanism. The present invention has a simple structure and reliable operation. It can purify indoor circulating air even in harsh climates.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration, and in particular to an air purification device and a patio air conditioner having the same. Background Art

[0002] Among air conditioning systems, rooftop air conditioners are widely used in shopping malls, offices, and residences. They are favored by users for their small footprint, uniform cool air delivery, and aesthetically pleasing appearance. Typically, rooftop air conditioners feature a front-mounted fresh air intake system. This system incorporates a fresh air foam frame assembly between the rooftop panel and the main unit. Fresh air is introduced through the frame into the return air vent of the rooftop air conditioner, improving the quality of the air circulating within the system. This addresses the technical issue of insufficient fresh air intake in rooftop air conditioners. Existing fresh air intake systems only draw in outdoor air, making them inappropriate in harsh climates (such as windy sand, haze, rain, and snow). Prolonged internal circulation in these conditions can degrade indoor air quality, potentially impacting human health. Furthermore, the industry currently employs multiple elastic clips to secure the filter to the fresh air intake system. This method facilitates installation, but when disassembling, the filter is difficult due to the inability to open multiple clips simultaneously and the resilient nature of the clips.

[0003] Therefore, how to overcome the defects of the existing ceiling machine fresh air device, such as the difficulty in disassembling the filter accessories, affecting the efficiency of maintenance work, and being unable to purify the air under harsh weather conditions, is a problem that workers in this field are actively considering solving. Summary of the Invention

[0004] In order to solve the problems that the filter accessories of the existing fresh air device are difficult to disassemble, affecting the efficiency of maintenance work, and cannot purify the air under adverse weather conditions, the present invention proposes an air purification device that can efficiently and conveniently disassemble and assemble the filter accessories and can continue to purify the indoor circulating air under adverse weather conditions, and a ceiling machine with the device.

[0005] The present invention provides an air purification device, including a fresh air foam frame with a return air outlet in the middle and air outlets arranged around the periphery. The return air outlet is provided with a filter assembly, and the filter assembly includes a filter frame and an adsorption net component. The adsorption net component can be quickly installed or removed from the filter frame through an elastic paddle mechanism arranged around the periphery.

[0006] Preferably, the filter frame is formed by connecting four filter frame edges end to end to form a frame that fits the shape of the return air outlet of the fresh air foam frame.

[0007] Preferably, one end of the filter frame edge is a raised structure with a screw through hole, and the other end of the filter frame edge is a groove structure, in which screw holes are provided along the axial direction of the filter frame edge. The raised structure at one end of the filter frame edge is inserted into the groove structure at one end of the other filter frame edge, and the two adjacent filter frame edges are fixedly connected at right angles through the screw through hole, screw hole and screw.

[0008] Preferably, the adsorption net component includes a frame and an adsorption net provided on the frame; the frame of the adsorption net component is detachably connected to the inner circle of the filter frame.

[0009] Preferably, a wiring block is provided on one side of the filter frame; and at least one countersunk through hole for connecting with the fresh air foam frame is provided on the other side of the filter frame, and two boss countersunk screw holes are also provided separately.

[0010] Preferably, the elastic pick mechanism includes a self-tapping screw that is sequentially sleeved with a spring washer and a sheet metal elastic pick, the lower half of the self-tapping screw being a thread and the upper half being a smooth rod, the diameter of the smooth rod section being larger than the diameter of the threaded section to form a smooth rod step; when the self-tapping screw is screwed into the boss countersunk screw hole on one side of the filter frame, the smooth rod step contacts the countersunk step of the boss countersunk screw hole, and the screw is connected in place; when the sheet metal elastic pick rotates around the self-tapping screw, the frame of the adsorption net component is connected to or disassembled from the filter frame.

[0011] Preferably, the sheet metal elastic pick is in the shape of an elongated strip with both ends bent, and a positioning protrusion is provided on the surface of the sheet metal elastic pick facing the frame of the adsorption net component.

[0012] Preferably, a screw hole component is provided around the return air outlet of the fresh air foam frame, and the filter assembly is embedded in the return air outlet of the fresh air foam frame by the windward surface of the fresh air foam frame, and is screwed to the screw hole component through the countersunk through-hole on the edge of the filter frame to fix the filter assembly to the fresh air foam frame.

[0013] Preferably, the screw hole component is three sets of sheet metal fixing parts, the first and second sheet metal fixing parts are respectively arranged on the two upper corners of the leeward side of the fresh air foam frame, and the third sheet metal fixing part is arranged on the lower side of the leeward side of the fresh air foam frame; the three sets of sheet metal fixing parts each extend from their main body to the inner side of the return air outlet of the fresh air foam frame to form a threaded hole for connecting the filter assembly.

[0014] Preferably, the air outlet on the leeward side of the fresh air foam frame is provided with at least one negative ion generating carbon brush, and the adsorption net of the adsorption net component is an electrostatic adsorption net.

[0015] Preferably, the inner wall of the return air outlet of the fresh air foam frame is provided with a main wire groove for the connecting wires between the main body and the panel of the ceiling air conditioner to pass through, and the leeward side of the fresh air foam frame is provided with a small wire groove for the insulating wires of the negative ion generating carbon brush to pass through.

[0016] The present invention also provides a rooftop air conditioner. The air purification device provided by the present invention is arranged between the rooftop air conditioner panel and the rooftop air conditioner body.

[0017] The present invention sets a filter assembly at the return air inlet of the fresh air foam frame of the air conditioner in the ceiling unit. By rotating the sheet metal elastic paddle in the elastic paddle mechanism, the adsorption mesh component in the filter assembly can be quickly and conveniently connected to the filter frame for installation or removal, and the operation is reliable, so that the adsorption mesh component can be easily removed for cleaning and maintenance. The entire filter assembly can also be easily installed, maintained or replaced by screw connection. In addition, even in harsh climates where traditional fresh air input devices cannot work, the indoor circulating air can still be purified, and the cooperation of the negative ion generating carbon brush and the electrostatic adsorption mesh can maintain an excellent air environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1a Schematic diagram of the leeward side (the side facing the inside of the air duct) of the fresh air device of the present invention;

[0019] Figure 1b is a three-dimensional schematic diagram of the windward side (the side facing the indoor space) of the fresh air device of the present invention;

[0020] Figure 2 for Figure 1b Exploded three-dimensional schematic diagram;

[0021] Figure 3a for Figure 2 A magnified schematic diagram of part A in the middle;

[0022] Figure 3b for Figure 2 A magnified schematic diagram of part B in the middle;

[0023] Figure 4a It is a three-dimensional schematic diagram of one side of the filter frame of the present invention;

[0024] Figure 4b for Figure 4a A three-dimensional diagram of the other side of the filter frame;

[0025] Figure 5 This is an enlarged schematic diagram of the elastic paddle mechanism of the present invention fixing the filter assembly to the fresh air foam frame.

[0026] Among them, 1 fresh air foam frame, 2 return air outlet, 3 air outlet, 4 filter assembly, 5 filter frame, 6 adsorption net component,

[0027] 7 elastic pick mechanism, 8 filter frame edge, 9 raised structure, 10 screw hole, 11 groove structure, 12 screw hole,

[0028] 13 wiring block, 14 countersunk through hole, 15 boss countersunk screw hole, 16 self-tapping screw, 17 spring washer, 18 sheet metal elastic pick, 19 annular boss, 20 positioning bump, 21 first sheet metal fixing part, 22 second sheet metal fixing part, 23 third sheet metal fixing part, 24 threaded hole, 25 negative ion generating carbon brush, 26 main wiring groove, 27 fresh air outlet. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and examples, but they do not limit the present invention.

[0030] The air conditioner provided by the present invention has an air purification device provided by the present invention between the air conditioner panel and the main body of the air conditioner. Figure 1a 、 Figure 1b and Figure 2 As shown, an embodiment of the air purification device provided by the present invention includes a fresh air foam frame 1, a square return air port 2 in the middle of the fresh air foam frame 1, and eight air outlets 3 are provided on the surrounding body. As needed, the fresh air foam frame 1 can also be made of a relatively heat-insulating lightweight material; the return air port 2 can be set to other rectangles, such as a rectangle; and the number of air outlets 3 can also be selected, for example, one air outlet or three air outlets on each side. A filter assembly 4 is installed in the return air port 2 in the middle of the fresh air foam frame 1, and the filter assembly 4 is fixedly connected to the fresh air foam frame 1 by screws. The filter assembly 4 includes a filter frame 5 and an adsorption net component 6, and the adsorption net component 6 includes a frame and an adsorption net attached to the frame. The frame of the adsorption net component 6 can be quickly connected to or disassembled from the filter frame 5 through an elastic paddle mechanism 7 provided on the periphery.

[0031] like Figure 2 to Figure 4bAs shown, in an embodiment of the air purification device provided by the present invention, the filter frame 5 of the filter assembly 4 is composed of four filter frame edges 8 of the same length connected end to end to form a frame that adapts to the shape of the return air outlet 2 of the fresh air foam frame 1. In this embodiment, one end of the filter frame edge 8 is a raised structure 9 with a screw hole 10, and the other end of the filter frame edge 8 is a groove structure 11. The groove structure 11 is provided with a screw hole 12 along the axial direction (length direction) of the filter frame edge 8. After the raised structure 9 at one end of the filter frame edge 8 is inserted into the groove structure 11 at one end of the other filter frame edge 8, the two adjacent filter frame edges 8 can be fixedly connected at right angles using screws through the screw holes 10 and the screw holes 12. In this way, the four filter frame edges 8 are connected end to end to complete the installation of the filter frame 5. The outer dimensions of the adsorption net component 6 correspond to the inner dimensions of the filter frame 5, and the adsorption net component 6 is clamped in the inner circle of the filter frame 5, and the adsorption net component 6 and the filter frame 5 can be completely fixed by the elastic paddle mechanism 7 (such as Figure 5 In addition, a wiring block 13 is provided on one side of the filter frame 8; and two countersunk through holes 14 for connecting with the fresh air foam frame 1 are provided on the other side of the filter frame 8, and two boss countersunk screw holes 15 are also provided separately, that is, an annular boss 19 is provided on the surface of the boss countersunk screw hole 15 (refer to Figure 4b and Figure 5 The filter frame 5 is mainly used as an intermediate connecting member between the adsorption net member 6 and the fresh air foam frame 1. An integrated frame structure can also be used, but the size is larger, the mold cost is higher, and the preparation is more difficult.

[0032] like Figure 2 、 Figure 5 As shown, the elastic paddle mechanism 7 comprises a self-tapping screw 16 with a threaded lower section and a polished upper section. The diameter of the polished section is larger than that of the threaded section, forming a polished step. A spring washer 17 and a sheet metal elastic paddle 18 are sequentially inserted onto the polished shaft of the self-tapping screw 16. The self-tapping screw 16 is screwed into a boss countersunk screw hole 15 on one side of the filter frame 8. When the polished step of the rod contacts the countersunk step of the boss countersunk screw hole 15, the screw is secured in place. The spring washer 17 and sheet metal elastic paddle 18 are inserted into the polished shaft of the self-tapping screw 16. Rotating the sheet metal elastic paddle 18 about the self-tapping screw 16 connects or disconnects the adsorption screen member 6 from the filter frame 5. In this embodiment, the sheet metal elastic paddle 18 is in the form of an elongated strip with bent ends, facilitating rotation during installation and removal. Positioning bumps 20 are provided on the surface of the sheet metal elastic paddle 18 facing the frame of the adsorption screen member 6. After installation, the positioning protrusions 20 on the side of the sheet metal elastic pick 18 elastically press the frame of the adsorption net component 6 to prevent abnormal noise caused by the vibration of the adsorption net component 6 when the unit is running.

[0033] like Figure 5As shown, when the polished step of the self-tapping screw 16 contacts the step of the boss countersunk screw hole 15, the screw is fixed in place and the self-tapping screw 16 cannot rotate downward. This prevents the screw from rotating downward and flattening and tightening the spring washer 17, making it difficult for the sheet metal elastic pick 18 to rotate. At this time, the sheet metal elastic pick 18 connects and secures the adsorption mesh component 6 to the filter frame 5, while the spring washer 17 is only in a semi-compressed state. The elastic force of the spring washer 17 causes the sheet metal elastic pick 18 to press tightly against the surface of the boss 19 of the boss countersunk screw hole 15, resulting in a certain amount of static friction between the two. This friction prevents the sheet metal elastic pick 18 from rotating freely, preventing the adsorption mesh component 6 from falling off. Because the spring washer 17 separates the sheet metal spring pick 18 from the head of the self-tapping screw 16, the pre-tightening force of the self-tapping screw 16 is greater than the friction between the spring washer 17 and the head of the self-tapping screw 16 during the rotation of the sheet metal spring pick 18. Therefore, no matter how the sheet metal spring pick 18 rotates back and forth, the self-tapping screw 16 will not loosen and cause the connection to fail. Therefore, when disassembling the adsorption net component 6 after sales, there is no need to pre-tighten the self-tapping screw 16.

[0034] like Figure 2 As shown, the inner periphery of the return air port 2 of the fresh air foam frame 1 of the air purification device of the present invention is provided with screw hole components. Figure 1a In this embodiment, the screw hole component is three sets of sheet metal fixing parts, namely the first and second sheet metal fixing parts 21 and 22 provided on the two upper corners of the leeward side of the fresh air foam frame 1; and the third sheet metal fixing part 23 provided on the lower side of the leeward side of the fresh air foam frame 1. The main bodies of these three sets of sheet metal fixing parts are fixed on the fresh air foam frame 1, and each extends from its main body to the inner side of the return air outlet 2 of the fresh air foam frame 1 to form a threaded hole 24 for connecting the filter assembly 4. During installation, the filter assembly 4 is embedded into the return air outlet 2 of the fresh air foam frame 1 by the windward side of the fresh air foam frame 1, and is screwed to the threaded hole 24 of the screw hole component through the countersunk through-hole 14 of the filter frame edge 8, thereby fixing the filter assembly 4 to the fresh air foam frame 1 (such as Figure 1b As shown), the plane of the filter assembly 4 can be flush with the plane of the fresh air foam frame 1 on the windward side. Because the countersunk through holes 14 and the elastic paddle mechanism 7 of the filter frame edge 8 are on the windward side of the fresh air foam frame 1 facing outward, it is not necessary to remove the filter assembly 4 as a whole during routine maintenance or replacement of the adsorption net component 6. The adsorption net component 6 can be connected or disassembled to the filter frame 5 by simply turning the sheet metal elastic paddle 18. If the entire filter assembly 4 needs to be removed for maintenance, the screws in the countersunk through holes 14 can be removed. Wiring blocks 13 are provided in multiple locations on the other side (leeward side) of the filter frame 5 to constrain the wire of the negative ion generating carbon brush 25.

[0035] like Figure 1a 、 Figure 1bAs shown, the air outlet 3 around the leeward side of the fresh air foam frame 1 is provided with one to two negative ion generating carbon brushes 25, and the supporting adsorption net adopts an electrostatic adsorption net. Because the negative ion generating carbon brush 25 can emit negative ions in the air, according to the air supply principle of the air conditioner of the ceiling machine, the negative ion generating carbon brush 25 is located at the air outlet 3 on the leeward side of the fresh air foam frame 1, and the high-speed air flow blown out carries the negative ions into the room together, and adheres to the particulate matter in the air, such as PM2.5, PM10, etc. When the air carrying the polluted particulate matter passes through the return air vent 2 of the fresh air foam frame 1, it will be adsorbed on the net surface by the electrostatic adsorption net, thereby achieving the effect of purifying the air. In addition, if the indoor carbon dioxide concentration is too high and ventilation is needed, the user can open the fresh air vents 27 on the two corners of the fresh air foam frame 1 and inhale a small amount of fresh air. Due to the combined effect of the adsorption net member 6 and the negative ion generating carbon brush 25 provided by the present invention, the concentration of dust, PM2.5, etc. in the indoor air can be kept at a very low level. The inner wall of the fresh air foam frame return air vent 2 is also provided with a semicircular main wire groove 26 for the connecting wires between the main body and the panel of the air conditioner of the air conditioner in the atrium. Small wire grooves are provided at multiple locations on the leeward side of the fresh air foam frame 1 for the insulated wires of the negative ion generating carbon brushes 25. All the wire grooves are small in width and height, only allowing the wires to pass through, and are as sealed as possible. This effectively prevents the cold air from the air outlet 3 from flowing back into the return air vent 2 during the cooling of the atrium.

[0036] The present invention incorporates a filter assembly at the return air outlet of the fresh air foam frame. By rotating the sheet metal elastic tabs within the elastic tab mechanism, the adsorption mesh component within the filter assembly can be quickly and conveniently connected or removed from the filter frame. Operation is reliable, allowing for easy replacement, cleaning, and maintenance of the adsorption mesh component. Screw connections also allow for easy assembly, disassembly, maintenance, or replacement of the entire filter assembly. Furthermore, even in harsh climates where traditional fresh air input devices are inoperable, the system can still purify indoor circulating air to maintain a superior air environment.

[0037] The above descriptions are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An air purification device, comprising a fresh air foam frame with a return air port in the middle and air outlets around the periphery, characterized in that: The filter assembly is provided with a filter assembly, and the filter assembly includes a filter frame and an adsorption mesh component, and the adsorption mesh component can be quickly connected or removed with the filter frame through an elastic pick mechanism arranged around the periphery; a wiring block is provided on one side of the filter frame edge, and the other side of the filter frame edge is provided with at least one countersunk through-hole for connecting to the fresh air foam frame, and is also separately provided with two boss countersunk screw holes; the elastic pick mechanism includes a self-tapping screw which is sequentially sleeved with a spring washer and a sheet metal elastic pick, the lower half of the self-tapping screw is threaded and the upper half is a smooth rod, the diameter of the smooth rod section is larger than the diameter of the threaded section to form a smooth rod step; when the self-tapping screw is screwed into the boss countersunk screw hole on the filter frame edge, the smooth rod step contacts the countersunk step of the boss countersunk screw hole, and the screw is connected in place; when the sheet metal elastic pick rotates around the self-tapping screw, the adsorption mesh component is connected or removed from the filter frame.

2. The air purification device according to claim 1, wherein The filter frame is formed by connecting four filter frame edges end to end to form a frame that is adapted to the shape of the return air outlet of the fresh air foam frame.

3. The air purification device according to claim 2, characterized in that One end of the filter frame edge is a raised structure provided with a screw through hole, and the other end of the filter frame edge is a groove structure, in which a screw hole is provided along the axial direction of the filter frame edge; the raised structure at one end of the filter frame edge is inserted into the groove structure at one end of the other filter frame edge, and the two adjacent filter frame edges are fixedly connected at right angles by screws and the screw through holes and screw holes.

4. The air purification device according to claim 1, wherein The adsorption net component includes a frame and an adsorption net arranged on the frame; the frame of the adsorption net component is detachably connected to the inner circle of the filter frame.

5. The air purification device according to claim 1, wherein The sheet metal elastic pick is a long strip with two ends bent, and a positioning protrusion is provided on the surface of the sheet metal elastic pick facing the frame of the adsorption net component.

6. The air purification device according to claim 1, wherein A screw hole component is provided around the return air outlet of the fresh air foam frame. The filter assembly is embedded in the return air outlet by the windward surface of the fresh air foam frame, and is screwed to the screw hole component through the countersunk through-hole on the edge of the filter frame to fix the filter assembly to the fresh air foam frame.

7. The air purification device according to claim 6, characterized in that The screw hole components are three sets of sheet metal fixing parts, the first and second sheet metal fixing parts are respectively arranged on the two corners on the upper side of the leeward side of the fresh air foam frame, and the third sheet metal fixing part is arranged on the lower side of the leeward side of the fresh air foam frame; the three sets of sheet metal fixing parts each extend from their main body to the inner side of the return air outlet of the fresh air foam frame to form a threaded hole for connecting the filter assembly.

8. The air purification device according to claim 1, wherein The air outlet on the leeward side of the fresh air foam frame is provided with at least one negative ion generating carbon brush, and the adsorption net of the adsorption net component is an electrostatic adsorption net.

9. The air purification device according to claim 1, wherein The inner wall of the return air outlet of the fresh air foam frame is provided with a main wire groove for the connecting wires between the main body and the panel of the ceiling air conditioner to pass through, and the leeward side of the fresh air foam frame is provided with multiple small wire grooves for the insulating wires of the negative ion generating carbon brushes to pass through.

10. A rooftop air conditioner, characterized in that: The air purification device according to any one of claims 1 to 9 is arranged between the air conditioning panel and the air conditioning body of the ceiling unit.

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