Automatic cleaning type filter of heating ventilation air conditioner

Abstract

The invention relates to the technical field of heating ventilation air conditioners, in particular to an automatic cleaning type filter of a heating ventilation air conditioner, which comprises a first air pipe, a first flow guide plate, a second air pipe, a mounting box, a fan assembly, a dust removal mechanism and an air distribution mechanism, the first flow guide plate is arranged on the right side of the first air pipe, and the second air pipe is arranged on the right side of the first flow guide plate; the mounting box is arranged on the left side of the first air pipe, the fan assembly is arranged on the rear side of the first air pipe, the dust removal mechanism is arranged in an inner cavity of the mounting box, and the air distribution mechanism is arranged on the front side of the second air pipe. By combining the technical scheme that the dust collecting assembly automatically collects particles, the self-cleaning function is achieved, only the dust collecting bin needs to be cleaned regularly, the maintenance cost is reduced, meanwhile, impact between airflow and an inner cavity of the air distribution barrel is reduced, aerodynamic noise is effectively reduced, and the service life of the air distribution barrel is prolonged. Therefore, the air flow can be diffused more stably and uniformly.

Description

Technical Field

[0001] The invention relates to the technical field of heating, ventilation and air conditioning, and in particular to an automatic cleaning filter of a heating, ventilation and air conditioning. Background Art

[0002] With the rapid development of modern industry and the acceleration of urbanization, air quality issues are increasingly attracting people's attention. There are a large number of particulate matter in the air, such as dust, pollen, industrial pollutants, etc. These particulate matter not only affects people's health, but also has adverse effects on the indoor environment and the operation of equipment.

[0003] Heating, ventilation and air conditioning (HVAC) systems are widely used in modern buildings. Whether it is a commercial building, industrial plant or residential building, HVAC systems are key equipment for regulating indoor temperature, humidity and air quality. It achieves comfortable control of the indoor environment by circulating air, but in this process, if there is no effective air filtration measures, the particles in the air will circulate indoors with the airflow, resulting in a decrease in indoor air quality.

[0004] Although traditional HVAC filters can filter some particulate matter in the air, they have many limitations. 1. The filtration efficiency of many traditional filters is limited. As the use time increases, a large amount of particulate matter will gradually accumulate on the filter surface, causing the filter holes to be blocked. Once blocked, it will not only reduce the air circulation, affecting the cooling or heating effect of the HVAC system, but also increase the load of the fan and increase energy consumption. 2. In order to ensure the normal operation of the system, the filter needs to be replaced frequently. This not only increases the maintenance cost, but also causes secondary pollution to the environment if the replaced filter is not handled properly. 3. During the operation of the HVAC system, the reasonable distribution of airflow and the control of aerodynamic noise also need to be considered. Reasonable airflow distribution can improve the cooling or heating efficiency of the air conditioning system, while reducing aerodynamic noise can improve the comfort of the indoor environment. Therefore, it is of great practical significance to develop a HVAC filter that integrates high-efficiency filtration, automatic cleaning, reasonable air distribution and noise reduction functions. Summary of the invention

[0005] The object of the present invention is to provide an automatic cleaning filter for a heating, ventilation and air conditioning system, so as to at least solve the problems of the prior art that the filter element cannot be automatically cleaned, the inhalable particles cannot be automatically collected, and aerodynamic noise is easily generated to affect comfort.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic cleaning filter for a heating, ventilation and air conditioning system, comprising: a first air duct, a first guide plate, a second air duct, an installation box, a fan assembly, a dust removal mechanism and an air distribution mechanism, wherein the first guide plate is arranged on the right side of the first air duct, the second air duct is arranged on the right side of the first guide plate, the installation box is arranged on the left side of the first air duct, the fan assembly is arranged on the rear side of the first air duct, the dust removal mechanism is arranged in the inner cavity of the installation box, and the air distribution mechanism is arranged on the front side of the second air duct.

[0007] Preferably, in order to prevent the first motor from obstructing the airflow, the fan assembly includes: a limit block, a fan cage, a fan, a first motor and a bevel gear, wherein the limit blocks are several and are respectively arranged on the side walls of the inner cavity of the first air duct; the fan cage is adapted to be plugged into the left side of the inner cavity of the first air duct, and the several limit blocks limit the fan cage; the fan is rotatably installed in the inner cavity of the fan cage; the first motor is fixedly installed on the rear side of the first air duct; there are two bevel gears, which are respectively fixedly installed on the output end of the first motor and the rotating shaft of the fan, and the two bevel gears are adapted to mesh with each other.

[0008] Preferably, the purpose is to filter particulate matter in the air and collect them, and the dust removal mechanism includes: a mounting plate, a filter barrel, a cleaning assembly and a dust collecting assembly, the mounting plate is installed on the right side of the inner cavity of the mounting box; the filter barrel is rotatably installed in the middle position of the right side of the mounting plate, the opening of the filter barrel is set to the right side, the left side of the filter barrel passes through the mounting plate, and the outer wall of the filter barrel is provided with a plurality of filter holes, the filter barrel can filter particulate matter in the air; the cleaning assembly is arranged at the bottom of the inner cavity of the mounting box; the dust collecting assembly is arranged at the bottom of the mounting box.

[0009] Preferably, the purpose is to remove particulate matter attached to the outer wall of the filter barrel, and the cleaning assembly includes: a motor, a driving wheel, a discharge port and a scraper, the motor is fixedly installed on the bottom right side of the installation box; the driving wheel is fixedly installed on the output end of the motor, and the driving wheel is in close contact with the right end of the filter barrel, so that the output end of the motor can drive the filter barrel to rotate through the driving wheel; the discharge port is opened at the bottom of the installation box; the scraper is arranged at the top of the discharge port, and the top of the scraper is in close contact with the outer wall of the filter barrel, when the filter barrel rotates, the scraper can scrape the particulate matter attached to the outer wall of the filter barrel into the discharge port.

[0010] Preferably, the purpose is to collect particulate matter, and the dust collecting component includes: a collecting box, a conveying rod, a first gear, a second gear, a second motor and a dust collecting bin, the collecting box is arranged at the bottom of the discharge port; there are two conveying rods, which are rotatably installed on the right side of the inner cavity of the collecting box, and the blades of the two conveying rods are spiral. The rotation of the conveying rods can push the particulate matter to move to the left, and the two conveying rods are conjugately arranged; there are two first gears, which are rotatably installed on the right side of the collecting box, and are fixedly connected to the two conveying rods respectively; the second motor is fixedly installed at the bottom of the installation box; the second gear is fixedly installed at the output end of the second motor, and is adaptively meshed with the two first gears, so that the output end of the second motor can drive the two first gears to rotate synchronously through the second gear, and under the meshing action of the two first gears and the second gear, the two conveying rods rotate synchronously, and the spiral blades of the two conveying rods are adaptively meshed, thereby realizing self-cleaning; the dust collecting bin is detachably installed at the left end of the collecting box.

[0011] Preferably, in order to reduce aerodynamic noise, the air distribution mechanism includes: a third air duct, a support plate, a second guide plate, an air distribution barrel, air distribution blades, a mounting rod and an air guide plate, the third air duct is arranged on the front side of the second air duct; the support plate is arranged at the middle position of the third air duct; there are several second guide plates, which are respectively arranged on the side walls of the inner cavity of the third air duct from top to bottom; the air distribution barrel is arranged on the front side of the third air duct, and the bottom of the inner cavity of the air distribution barrel is gradually inclined downward from the outside to the inside; the air distribution blades are circumferentially arranged at the bottom of the air distribution barrel; the mounting rod is arranged at the bottom front end of the support plate; the air guide plate is arranged at the bottom of the mounting rod.

[0012] The beneficial effects of the present invention compared with the prior art are: 1. The output end of the motor of the present invention can drive the filter barrel to rotate through the driving wheel, and the scraper can scrape the particles attached to the outer wall of the filter barrel into the discharge port, thereby realizing automatic cleaning of the filter barrel without manual replacement, saving time and effort.

[0013] 2. The two conjugately arranged conveying rods of the present invention are adapted to mesh with each other, and during the synchronous rotation, the particles can be pushed into the dust collecting bin. At the same time, the blades of one of the conveying rods can clean the grooves between the blades of the other conveying rod, thereby realizing a self-cleaning effect. Combined with the automatic cleaning technical solution of the filter barrel of the dust collecting component, maintenance personnel only need to clean the dust collecting bin regularly, thereby reducing maintenance costs.

[0014] 3. The present invention adopts the technical solution of externally placing the first motor, which makes the airflow flow smoother. The airflow enters the front and rear sides of the air distribution barrel through the upper and lower sides of the support plate, making the airflow distribution more reasonable, reducing the impact between the airflow and the inner cavity of the air distribution barrel, and effectively reducing the aerodynamic noise, so that the airflow can be blown out more smoothly through the air guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention.

[0016] Figure 2 It is the right view of the present invention.

[0017] Figure 3 A top view of the fan assembly.

[0018] Figure 4 for Figure 3 Enlarged view of point B in .

[0019] Figure 5 This is the left side cross-sectional view of the air distribution mechanism.

[0020] Figure 6 It is a schematic diagram of the dust removal mechanism structure.

[0021] Figure 7 This is the left view of the dust removal mechanism.

[0022] Figure 8 This is the right side view of the dust removal mechanism.

[0023] Fig. 9 A top view of the dust collection assembly.

[0024] In the figure: 1. first air duct; 2. first guide plate; 3. second air duct; 4. mounting box; 5. fan assembly; 51. limit block; 52. fan cage; 53. fan; 54. first motor; 55. bevel gear; 6. dust removal mechanism; 61. mounting plate; 62. filter barrel; 63. cleaning assembly; 631. motor; 632. drive wheel; 633. discharge port; 634. scraper; 64. dust collection assembly; 641. collection box; 642. conveying rod; 643. first gear; 644. second gear; 645. second motor; 646. dust collection bin; 7. air distribution mechanism; 71. third air duct; 72. support plate; 73. second guide plate; 74. air distribution barrel; 75. air distribution blade; 76. mounting rod; 77. air guide plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 9 To achieve the above-mentioned purpose, the present invention provides a technical solution: an automatic cleaning filter for a heating, ventilation and air conditioning system, comprising: a first air duct 1, a first guide plate 2, a second air duct 3, an installation box 4, a fan assembly 5, a dust removal mechanism 6 and an air distribution mechanism 7, the first guide plate 2 is arranged on the right side of the first air duct 1, the second air duct 3 is arranged on the right side of the first guide plate 2, the installation box 4 is arranged on the left side of the first air duct 1, the fan assembly 5 is arranged on the rear side of the first air duct 1, the dust removal mechanism 6 is arranged in the inner cavity of the installation box 4, and the air distribution mechanism 7 is arranged on the front side of the second air duct 3.

[0027] As a preferred solution, further, Figure 2-4 As shown, the fan assembly 5 includes: a limit block 51, a fan cage 52, a fan 53, a first motor 54 and a bevel gear 55. The limit blocks 51 are several in number and are respectively arranged on the side wall of the inner cavity of the first air duct 1; the fan cage 52 is adapted to be plugged into the left side of the inner cavity of the first air duct 1, and the several limit blocks 51 limit the fan cage 52; the fan 53 is rotatably installed in the inner cavity of the fan cage 52; the first motor 54 is fixedly installed on the rear side of the first air duct 1; there are two bevel gears 55, which are respectively fixedly installed on the output end of the first motor 54 and the rotating shaft of the fan 53, and the two bevel gears 55 are adapted to mesh with each other, so that the first motor 54 can drive the fan 53 outside the first air duct 1, and the output end of the first motor 54 drives the fan 53 to rotate under the meshing action of a pair of bevel gears 55. Under the drive of the rotating blades of the fan 53, the first motor 54 is prevented from obstructing the flow of airflow, thereby improving the flow efficiency.

[0028] As a preferred solution, further, Figure 6-9 As shown, the dust removal mechanism 6 includes: a mounting plate 61, a filter barrel 62, a cleaning component 63 and a dust collecting component 64. The mounting plate 61 is installed on the right side of the inner cavity of the mounting box 4; the filter barrel 62 is rotatably installed in the middle position of the right side of the mounting plate 61, the opening of the filter barrel 62 is set to the right side, the left side of the filter barrel 62 passes through the mounting plate 61, and the outer wall of the filter barrel 62 is provided with a plurality of filter holes, and the filter barrel 62 can filter particulate matter in the air; the cleaning component 63 is arranged at the bottom of the inner cavity of the mounting box 4, and the cleaning component 63 can remove particulate matter attached to the outer wall of the filter barrel 62; the dust collecting component 64 is arranged at the bottom of the mounting box 4, and the dust collecting component 64 can collect particulate matter.

[0029] As a preferred solution, further, Figure 6-8 As shown, the cleaning component 63 includes: a motor 631, a driving wheel 632, a discharge port 633 and a scraper 634, the motor 631 is fixedly installed on the bottom right side of the installation box 4; the driving wheel 632 is fixedly installed on the output end of the motor 631, and the driving wheel 632 is in close contact with the right end of the filter barrel 62, so that the output end of the motor 631 can drive the filter barrel 62 to rotate through the driving wheel 632; the discharge port 633 is opened at the bottom of the installation box 4; the scraper 634 is arranged at the top of the discharge port 633, and the top of the scraper 634 is in close contact with the outer wall of the filter barrel 62, when the filter barrel 62 rotates, the scraper 634 can scrape the particles attached to the outer wall of the filter barrel 62 into the discharge port 633.

[0030] As a preferred solution, further, Fig. 9 As shown, the dust collecting assembly 64 includes: a collecting box 641, a conveying rod 642, a first gear 643, a second gear 644, a second motor 645 and a dust collecting bin 646. The collecting box 641 is arranged at the bottom of the discharge port 633; ​​there are two conveying rods 642, which are rotatably installed on the right side of the inner cavity of the collecting box 641, and the blades of the two conveying rods 642 are spiral-shaped. The rotation of the conveying rods 642 can push the particles to move to the left, and the two conveying rods 642 are conjugately arranged; there are two first gears 643, which are rotatably installed on the right side of the collecting box 641, and are respectively connected to the two conveying rods 645. The rod 642 is fixedly connected; the second motor 645 is fixedly installed at the bottom of the installation box 4; the second gear 644 is fixedly installed at the output end of the second motor 645, and is adapted to mesh with the two first gears 643, so that the output end of the second motor 645 can drive the two first gears 643 to rotate synchronously through the second gear 644, and under the meshing action of the two first gears 643 and the second gear 644, the two conveying rods 642 rotate synchronously, and the spiral blades of the two conveying rods 642 are adapted to mesh, thereby realizing self-cleaning; the dust collecting bin 646 is detachably installed at the left end of the collecting box 641.

[0031] As a preferred solution, further, Figure 5As shown, the air distribution mechanism 7 includes: a third air duct 71, a support plate 72, a second guide plate 73, an air distribution barrel 74, an air distribution blade 75, a mounting rod 76 and an air guide plate 77. The third air duct 71 is arranged on the front side of the second air duct 3; the support plate 72 is arranged in the middle position of the third air duct 71, and the air flow enters the front and rear sides of the air distribution barrel 74 through the upper and lower sides of the support plate 72, so that the air flow distribution is more reasonable; the number of second guide plates 73 is several, and they are respectively arranged on the inner cavity side walls of the third air duct 71 from top to bottom; the air distribution barrel 74 is arranged on the front side of the third air duct 71, and the bottom of the inner cavity of the air distribution barrel 74 is gradually inclined downward from the outside to the inside; the air distribution blades 75 are circumferentially arranged at the bottom of the air distribution barrel 74, and the air flow passes through the first guide plate 2 and the second guide plate 73 in sequence, and the air distribution blades 75 distribute the air flow in the inner cavity of the air distribution barrel 74, thereby reducing the impact between the air flow and the inner cavity of the air distribution barrel 74 and effectively reducing the starting noise; the mounting rod 76 is arranged at the bottom front end of the support plate 72; the air guide plate 77 is arranged at the bottom of the mounting rod 76.

[0032] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0033] Step 1: The output end of the first motor 54 drives the fan 53 to rotate through the meshing action of a pair of bevel gears 55. Driven by the rotating blades of the fan 53, the air in the inner cavity of the first air duct 1 circulates from right to left, and the air passes through the filter barrel 62 to filter the particulate matter in the air; Step 2: The output end of the motor 631 can drive the filter barrel 62 to rotate through the driving wheel 632, and the scraper 634 can scrape the particles attached to the outer wall of the filter barrel 62 into the discharge port 633; Step 3: The output end of the second motor 645 drives the second gear 644 to rotate. Under the meshing action of the two first gears 643 and the second gear 644, the two conveying rods 642 are driven to rotate synchronously. The two conjugately arranged conveying rods 642 are adapted to mesh with each other. During the synchronous rotation, the particles can be pushed into the dust collecting bin 646. At the same time, the blades of one conveying rod 642 can clean the grooves between the blades of the other conveying rod 642, thereby realizing a self-cleaning effect. The maintenance personnel only need to clean the dust collecting bin 646 regularly. Step 4: The airflow passes through the first guide plate 2 and the second guide plate 73 in sequence, which increases the distance between the airflow and the first guide plate 2 and the second guide plate 73, reduces the impact of the airflow and the first air duct 1, and improves the silencing effect. The airflow is distributed in the inner cavity of the air distribution barrel 74 through the air distribution blades 75, which reduces the impact between the airflow and the inner cavity of the air distribution barrel 74, effectively reduces the aerodynamic noise, and the airflow enters the front and rear sides of the air distribution barrel 74 through the upper and lower sides of the support plate 72, so that the airflow distribution is more reasonable, so that the airflow can be blown out more smoothly through the air guide plate 77; The present invention can filter, automatically clean and collect particulate matter in the air, make airflow distribution more reasonable, make airflow flow more stable, and effectively reduce aerodynamic noise.

[0034] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology in this field to understand the content of the present invention and implement it, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention. The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. An automatic cleaning filter for HVAC, characterized in that: include: A first air duct (1), a first air guide plate (2), a second air duct (3) and an installation box (4), wherein the first air guide plate (2) is arranged on the right side of the first air duct (1), the second air duct (3) is arranged on the right side of the first air guide plate (2), and the installation box (4) is arranged on the left side of the first air duct (1). The automatic cleaning filter of the HVAC further comprises: A fan assembly (5) is arranged on the rear side of the first air duct (1); A dust removal mechanism (6) is arranged in the inner cavity of the installation box (4); An air distribution mechanism (7) is arranged on the front side of the second air duct (3); The dust removal mechanism (6) comprises: A mounting plate (61) mounted on the right side of the inner cavity of the mounting box (4); A filter barrel (62) is rotatably mounted at a middle position on the right side of the mounting plate (61); the opening of the filter barrel (62) is arranged to face the right side; the left side of the filter barrel (62) penetrates the mounting plate (61); and a plurality of filter holes are provided on the outer wall of the filter barrel (62); the filter barrel (62) is capable of filtering particulate matter in the air; A cleaning assembly (63) is arranged at the bottom of the inner cavity of the installation box (4); The dust collection assembly (64) is arranged at the bottom of the installation box (4).

2. The automatic cleaning filter for HVAC according to claim 1, characterized in that: The fan assembly (5) comprises: A plurality of limit blocks (51) are respectively arranged on the inner cavity side walls of the first air duct (1); A fan cage (52) is adapted to be plugged into the left side of the inner cavity of the first air duct (1), and a plurality of the limiting blocks (51) limit the fan cage (52); A fan (53) rotatably mounted in the inner cavity of the fan cage (52); A first motor (54) is fixedly mounted on the rear side of the first air duct (1); There are two bevel gears (55) which are fixedly mounted on the output end of the first motor (54) and the rotating shaft of the fan (53) respectively, and the two bevel gears (55) are adapted to mesh with each other.

3. The automatic cleaning filter for HVAC according to claim 2, characterized in that: The cleaning component (63) comprises: A motor (631) is fixedly mounted on the right side of the bottom of the mounting box (4); A driving wheel (632) is fixedly mounted on the output end of the motor (631), and the driving wheel (632) is in close contact with the right end of the filter barrel (62), so that the output end of the motor (631) can drive the filter barrel (62) to rotate via the driving wheel (632); A material discharge port (633) is provided at the bottom of the installation box (4); The scraper (634) is arranged at the top of the material discharge port (633), and the top of the scraper (634) is in close contact with the outer wall of the filter barrel (62).

4. The automatic cleaning filter for HVAC according to claim 3, characterized in that: When the filter barrel (62) rotates, the scraper (634) can scrape particles attached to the outer wall of the filter barrel (62) into the discharge port (633).

5. The automatic cleaning filter for HVAC according to claim 4, characterized in that: The dust collecting component (64) comprises: A collection box (641), arranged at the bottom of the discharge port (633); Two conveying rods (642) are rotatably mounted on the right side of the inner cavity of the collecting box (641); Two first gears (643) are rotatably mounted on the right side of the collection box (641) and are fixedly connected to the two conveying rods (642) respectively; A second motor (645) is fixedly mounted on the bottom of the mounting box (4); A second gear (644) is fixedly mounted on the output end of the second motor (645) and is adapted to mesh with the two first gears (643), so that the output end of the second motor (645) can drive the two first gears (643) to rotate synchronously via the second gear (644); The dust collecting bin (646) is detachably mounted on the left end of the collecting box (641).

6. The automatic cleaning filter for HVAC according to claim 5, characterized in that: The blades of the two conveying rods (642) are spiral-shaped; the conveying rods (642) are capable of pushing the particles to move to the left when they rotate; and the two conveying rods (642) are conjugately arranged.

7. The automatic cleaning filter for HVAC according to claim 6, characterized in that: Under the meshing action of the two first gears (643) and the second gear (644), the two conveying rods (642) rotate synchronously, and the spiral blades of the two conveying rods (642) mesh with each other, thereby achieving a self-cleaning effect.

8. The automatic cleaning filter for HVAC according to claim 7, characterized in that: The air distribution mechanism (7) comprises: a third air duct (71), arranged on the front side of the second air duct (3); A support plate (72) is arranged at a middle position of the third air duct (71); A plurality of second guide plates (73) are arranged on the inner cavity side walls of the third air duct (71) from top to bottom; An air distribution barrel (74) is arranged at the front side of the third air duct (71), and the bottom of the inner cavity of the air distribution barrel (74) gradually slopes downward from the outer side to the inner side; Air distribution blades (75) are circumferentially arranged at the bottom of the air distribution barrel (74); A mounting rod (76) is arranged at the bottom front end of the support plate (72); An air guide plate (77) is arranged at the bottom of the mounting rod (76).

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