An automatic cleaning filter for heating, ventilation and air conditioning

Abstract

The present application relates to the field of heating, ventilation and air conditioning technology, and more particularly to an automatic cleaning filter for heating, ventilation and air conditioning, comprising 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, wherein the first flow guide plate is arranged on the right side of the first air pipe, 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 back side of the first air pipe, the dust removal mechanism is arranged in the inner cavity of the mounting box, and the air distribution mechanism is arranged on the front side of the second air pipe. The automatic cleaning of the filter barrel is realized, time and labor are saved, and the technical scheme of automatically collecting particulate matter by the dust collection assembly is combined to realize the self-cleaning function, only the dust collection bin needs to be cleaned regularly, the maintenance cost is reduced, the impact between the airflow and the inner cavity of the air distribution barrel is reduced, the pneumatic noise is effectively reduced, and thus the airflow can be more smoothly and uniformly diffused.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heating, ventilation and air conditioning technology, in particular to an automatic cleaning filter for heating, ventilation and air conditioning. BACKGROUND

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

[0003] Heating, ventilation and air conditioning system (HVAC) is widely used in modern buildings, whether it is commercial buildings, industrial plants or residential buildings. Heating, ventilation and air conditioning system is the key equipment to regulate indoor temperature, humidity and air quality. It realizes the comfortable control of indoor environment by circulating air, but in this process, if there is no effective air filtration measure, the particulate matters in the air will circulate in the room with the airflow, resulting in the decline of indoor air quality.

[0004] Although the traditional heating, ventilation and air conditioning filter can filter some particulate matters in the air, it has many limitations. 1. The filtration efficiency of many traditional filters is limited. With the increase of use time, a large amount of particulate matters will accumulate on the surface of the filter, causing the filter hole to be blocked. Once blocked, not only the air flow will be reduced, affecting the cooling or heating effect of the heating, ventilation and air conditioning system, but also the load of the fan will be increased, increasing the 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 the replaced filter will cause secondary pollution to the environment if not properly treated. 3. During the operation of the heating, ventilation and air conditioning 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 indoor environment. Therefore, it is of great practical significance to develop a heating, ventilation and air conditioning filter which integrates high-efficiency filtration, automatic cleaning, reasonable air distribution and noise reduction functions. SUMMARY

[0005] The present application aims to provide an automatic cleaning filter for heating, ventilation and air conditioning to at least solve the problems of existing technology that cannot automatically clean the filter element, cannot automatically collect inhalable particulate matters and is prone to aerodynamic noise affecting comfort.

[0006] In order to achieve the above object, the present application provides the following technical scheme: An automatic cleaning filter for heating, ventilation and air conditioning, comprising: 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, 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 back side of the first air pipe, the dust removal mechanism is arranged in the inner cavity of the mounting box, and the air distribution mechanism is arranged on the front side of the second air pipe.

[0007] Preferably, in order to avoid the first motor hindering the airflow, the fan assembly comprises: a plurality of limiting blocks, a fan cage, a fan, a first motor and bevel gears, the plurality of limiting blocks are arranged on the inner cavity side walls of the first air pipe; the fan cage is adaptively inserted into the left side of the inner cavity of the first air pipe, and the plurality of limiting 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 back side of the first air pipe; and the two bevel gears are fixedly installed on the output end of the first motor and the rotating shaft of the fan, and the two bevel gears are adaptively engaged.

[0008] Preferably, in order to filter and collect particulate matters in the air, the dust removal mechanism comprises: a mounting plate, a filter barrel, a cleaning assembly and a dust collection assembly, the mounting plate is installed on the right side of the inner cavity of the mounting box; the filter barrel is rotatably installed at the middle position on the right side of the mounting plate, the opening of the filter barrel is arranged on the right side, the left side of the filter barrel penetrates through the mounting plate, a plurality of filter holes are formed in the outer wall of the filter barrel, and the filter barrel can filter particulate matters in the air; the cleaning assembly is arranged at the bottom of the inner cavity of the mounting box; and the dust collection assembly is arranged at the bottom of the mounting box.

[0009] Preferably, in order to remove the particulate matters attached to the outer wall of the filter barrel, the cleaning assembly comprises: a motor, a driving wheel, a discharge port and a scraper, the motor is fixedly installed on the right side of the bottom of the mounting 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 formed in the bottom of the mounting box; the scraper is arranged on 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 matters attached to the outer wall of the filter barrel into the discharge port.

[0010] Preferably, the purpose is to collect particles, the dust collecting assembly comprises: 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; the conveying rod is two in number and is rotatably installed at the right side of the inner cavity of the collecting box, the blades of the two conveying rods are helical, the conveying rod can push the particles to move to the left side by rotating, and the two conveying rods are coaxially arranged; the first gear is two in number and is rotatably installed at the right side of the collecting box and is fixedly connected with the two conveying rods; the second motor is fixedly installed at the bottom of the mounting box; the second gear is fixedly installed at the output end of the second motor and is engaged 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, the two conveying rods rotate synchronously under the meshing action of the two first gears and the second gear, the helical blades of the two conveying rods are engaged, and the self-cleaning effect is realized; and the dust collecting bin is detachably installed at the left end of the collecting box.

[0011] Preferably, the purpose is to reduce the pneumatic noise, the air distribution mechanism comprises: a third air pipe, a support plate, a second flow guide plate, an air distribution barrel, an air distribution blade, a mounting rod and an air guide plate, the third air pipe is arranged at the front side of the second air pipe; the support plate is arranged at the middle position of the third air pipe; the second flow guide plate is several in number and is arranged on the side wall of the inner cavity of the third air pipe from top to bottom; the air distribution barrel is arranged at the front side of the third air pipe, and the inner cavity bottom of the air distribution barrel gradually inclines downward from the outside to the inside; the air distribution blade is arranged at the bottom of the air distribution barrel in the circumferential direction; the mounting rod is arranged at the bottom front end of the support plate; and the air guide plate is arranged at the bottom of the mounting rod.

[0012] The beneficial effects of the present application compared with the prior art are:

[0013] 1、The output end of the motor can drive the filter barrel to rotate through the driving wheel, the scraper can scrape the particles adhering to the outer wall of the filter barrel into the discharge port, automatic cleaning of the filter barrel is realized, manual replacement is not needed, time and labor are saved.

[0014] 2、The two coaxially arranged conveying rods are engaged, in the synchronous rotation process, the particles can be pushed into the dust collecting bin, and the blades of one conveying rod can clean the grooves between the blades of the other conveying rod, so that the self-cleaning effect is realized, the maintenance personnel only need to clean the dust collecting bin regularly, and the maintenance cost is reduced.

[0015] 3、The first motor external technical scheme of the application makes the airflow flow more unobstructed, the airflow enters the front and rear sides of the cloth air distribution barrel through the upper and lower sides of the support plate, the airflow distribution is more reasonable, the impact between the airflow and the inner cavity of the cloth air distribution barrel is reduced, the pneumatic noise is effectively reduced, so that the airflow can pass through the air guide plate more smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the application.

[0017] Figure 2 It is a right view of the application.

[0018] Figure 3 It is a top view of the fan assembly.

[0019] Figure 4 It is Figure 3 It is an enlarged view of B in the figure.

[0020] Figure 5 It is a left view of the cloth air distribution mechanism.

[0021] Figure 6 It is a structural schematic view of the dust removal mechanism.

[0022] Figure 7 It is a left view of the dust removal mechanism.

[0023] Figure 8 It is a right view of the dust removal mechanism.

[0024] Figure 9 It is a top view of the dust collection assembly.

[0025] In the figure: 1, first air pipe; 2, first air guide plate; 3, second air pipe; 4, mounting box; 5, fan assembly; 51, limiting 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, driving wheel; 633, discharging 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, cloth air distribution mechanism; 71, third air pipe; 72, support plate; 73, second air guide plate; 74, cloth air distribution barrel; 75, cloth air distribution blade; 76, mounting rod; 77, air guide plate. DETAILED DESCRIPTION

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0027] Please refer to Figures 1-9 To achieve the above object, the present application provides a technical solution: an automatic cleaning filter for heating, ventilation and air conditioning, comprising: a first air pipe 1, a first flow guide plate 2, a second air pipe 3, a mounting box 4, a fan assembly 5, a dust removal mechanism 6 and an air distribution mechanism 7. The first flow guide plate 2 is arranged on the right side of the first air pipe 1. The second air pipe 3 is arranged on the right side of the first flow guide plate 2. The mounting box 4 is arranged on the left side of the first air pipe 1. The fan assembly 5 is arranged on the back side of the first air pipe 1. The dust removal mechanism 6 is arranged in the inner cavity of the mounting box 4. The air distribution mechanism 7 is arranged on the front side of the second air pipe 3.

[0028] As a preferred solution, further, as shown in Figures 2-4 The fan assembly 5 comprises: a plurality of limiting blocks 51, a fan cage 52, a fan 53, a first motor 54 and bevel gears 55. The plurality of limiting blocks 51 are arranged on the inner cavity side walls of the first air pipe 1. The fan cage 52 is adaptively inserted into the left side of the inner cavity of the first air pipe 1, and the plurality of limiting 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 back side of the first air pipe 1. The two bevel gears 55 are 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 adaptively engaged, so that the first motor 54 can drive the fan 53 outside the first air pipe 1. The output end of the first motor 54 drives the fan 53 to rotate through the engagement of the pair of bevel gears 55. Under the driving of the rotating fan blades of the fan 53, the first motor 54 avoids hindering the airflow, and improves the flow efficiency.

[0029] As a preferred solution, further, as shown in Figures 6-9 The dust removal mechanism 6 comprises: a mounting plate 61, a filter barrel 62, a cleaning assembly 63 and a dust collection assembly 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 at the middle position of the right side of the mounting plate 61. The opening of the filter barrel 62 is arranged to the right side. The left side of the filter barrel 62 penetrates the mounting plate 61, and a plurality of filter holes are formed in the outer wall of the filter barrel 62. The filter barrel 62 can filter particulate matter in the air. The cleaning assembly 63 is arranged at the bottom of the inner cavity of the mounting box 4. The cleaning assembly 63 can remove the particulate matter adhered to the outer wall of the filter barrel 62. The dust collection assembly 64 is arranged at the bottom of the mounting box 4. The dust collection assembly 64 can collect the particulate matter.

[0030] As a preferred option, further, such as Figures 6-8 As shown, the cleaning component 63 includes: a motor 631, a drive wheel 632, a discharge port 633, and a scraper 634. The motor 631 is fixedly installed on the bottom right side of the mounting box 4; the drive wheel 632 is fixedly installed on the output end of the motor 631, and the drive 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 drive wheel 632; the discharge port 633 is opened at the bottom of the mounting box 4; the scraper 634 is set on 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.

[0031] As a preferred option, further, such as Figure 9 As shown, the dust collection assembly 64 includes: a collection box 641, conveying rods 642, a first gear 643, a second gear 644, a second motor 645, and a dust collection bin 646. The collection box 641 is located at the bottom of the discharge port 633. There are two conveying rods 642, each rotatably mounted on the right side of the inner cavity of the collection box 641. The blades of the two conveying rods 642 are helical, and the rotation of the conveying rods 642 can push the particles to the left. The two conveying rods 642 are arranged in a conjugate configuration. There are two first gears 643, each rotatably mounted on the right side of the collection box 641, and each gear is connected to one of the two conveying rods 645. Rod 642 is fixedly connected; second motor 645 is fixedly installed at the bottom of mounting box 4; second gear 644 is fixedly installed at the output end of second motor 645 and meshes with two first gears 643, so that the output end of second motor 645 can drive two first gears 643 to rotate synchronously through second gear 644. Under the meshing action of two first gears 643 and second gear 644, two conveying rods 642 rotate synchronously, and the spiral blades of two conveying rods 642 mesh with each other to achieve self-cleaning; dust collection bin 646 is detachably installed at the left end of collection box 641.

[0032] As a preferred option, further, such as Figure 5As shown, the air distribution mechanism 7 comprises: a third air pipe 71, a support plate 72, a second flow guide plate 73, an air distribution barrel 74, an air distribution blade 75, a mounting rod 76 and a guide plate 77. The third air pipe 71 is arranged at the front side of the second air pipe 3. The support plate 72 is arranged at the middle position of the third air pipe 71. 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 second flow guide plate 73 is arranged on the inner cavity side wall of the third air pipe 71 in several numbers from top to bottom. The air distribution barrel 74 is arranged at the front side of the third air pipe 71, and the inner cavity bottom of the air distribution barrel 74 is gradually inclined downward from the outside to the inside. The air distribution blade 75 is arranged at the bottom of the air distribution barrel 74 in the circumferential direction. The air flow passes through the first flow guide plate 2 and the second flow guide plate 73 in turn, and is distributed in the inner cavity of the air distribution barrel 74 by the air distribution blade 75, which reduces the impact between the air flow and the inner cavity of the air distribution barrel 74 and effectively reduces the starting noise. The mounting rod 76 is arranged at the bottom front end of the support plate 72. The guide plate 77 is arranged at the bottom of the mounting rod 76.

[0033] The detailed connection means is a known technology in the art. The working principle and process are mainly introduced below.

[0034] Step one: 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. Under the driving of the rotating fan blades of the fan 53, the air in the inner cavity of the first air pipe 1 flows from right to left. The particles in the air are filtered by the filter barrel 62.

[0035] Step two: the output end of the motor 631 can drive the filter barrel 62 to rotate through the driving wheel 632. The scraper 634 can scrape the particles attached to the outer wall of the filter barrel 62 into the discharge port 633.

[0036] Step three: 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 coaxially arranged conveying rods 642 are adapted to mesh. In the synchronous rotation process, the particles can be pushed into the dust collecting bin 646. Meanwhile, the blades of one of the conveying rods 642 can clean the grooves between the blades of the other conveying rod 642, thereby realizing self-cleaning effect. Maintenance personnel only need to clean the dust collecting bin 646 regularly.

[0037] In step four, the air flow passes through the first guide plate 2 and the second guide plate 73 in sequence, the stroke between the air flow and the first guide plate 2 and the second guide plate 73 is increased, the impact between the air flow and the first air pipe 1 is slowed down, the sound reduction effect is improved, the air flow is distributed in the inner cavity of the air distribution barrel 74 through the air distribution blade 75, the impact between the air flow and the inner cavity of the air distribution barrel 74 is reduced, the aerodynamic noise is effectively reduced, 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, so that the air flow can be more smoothly blown out through the air guide plate 77.

[0038] The present application realizes the filtration of particulate matters in the air, automatic cleaning and collection, can make the air flow distribution more reasonable, the air flow flow more smoothly, and effectively reduce the aerodynamic noise.

[0039] The above examples are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the person skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application. The technical features of the above examples can be combined arbitrarily, in order to make the description simple, all possible combinations of the technical features in the above examples are not described, however, as long as the combination of these technical features does not exist contradictory, it should be considered that it is within the scope of the present application.

Claims

1. An automatic cleaning filter for HVAC systems, characterized in that, include: The system comprises a first air duct (1), a first guide plate (2), a second air duct (3), and a mounting box (4). The first guide plate (2) is located on the right side of the first air duct (1), the second air duct (3) is located on the right side of the first guide plate (2), and the mounting box (4) is located on the left side of the first air duct (1). The automatic cleaning filter of the HVAC system further includes: The fan assembly (5) is located on the rear side of the first air duct (1); A dust removal mechanism (6) is disposed in the inner cavity of the mounting box (4); The air distribution mechanism (7) is located on the front side of the second air duct (3); The dust removal mechanism (6) includes: 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 right position of the mounting plate (61). The opening of the filter barrel (62) is set to the right. The left side of the filter barrel (62) penetrates the mounting plate (61). The outer wall of the filter barrel (62) is provided with a number of filter holes. The filter barrel (62) can filter particulate matter in the air. Cleaning component (63) is located at the bottom of the inner cavity of the mounting box (4); A dust collection assembly (64) is disposed at the bottom of the mounting box (4); The air distribution mechanism (7) includes: The third air duct (71) is located in front of the second air duct (3); A support plate (72) is positioned in the middle of the third air duct (71); The second guide plate (73) is a number of them, and is respectively arranged from top to bottom on the inner wall of the third air duct (71); The air distribution tube (74) is located on the front side of the third air duct (71), and the bottom of the inner cavity of the air distribution tube (74) gradually slopes downward from the outside to the inside. The air distribution blades (75) are arranged circumferentially at the bottom of the air distribution barrel (74); Mounting rod (76) is provided at the bottom front end of the support plate (72); An air guide plate (77) is disposed at the bottom of the mounting rod (76).

2. The automatic cleaning filter for HVAC systems according to claim 1, characterized in that: The fan assembly (5) includes: The limiting blocks (51) are in several quantities and are respectively set on the inner cavity side wall of the first air duct (1); The fan cage (52) is adapted to be inserted into the left side of the inner cavity of the first air duct (1), and several of the limiting blocks (51) limit the fan cage (52); A fan (53) is rotatably mounted 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 fixedly installed on the output end of the first motor (54) and the shaft of the fan (53) respectively, and the two bevel gears (55) are adapted to mesh.

3. The automatic cleaning filter for HVAC systems according to claim 2, characterized in that: The cleaning component (63) includes: The motor (631) is fixedly installed on the bottom right side of the mounting box (4); The drive wheel (632) is fixedly installed at the output end of the motor (631), and the drive 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 drive wheel (632); The discharge port (633) is located at the bottom of the mounting box (4); A scraper (634) is disposed on 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).

4. The automatic cleaning filter for HVAC systems according to claim 3, characterized in that: 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 feed port (633).

5. The automatic cleaning filter for HVAC systems according to claim 4, characterized in that: The dust collection assembly (64) includes: A collection box (641) is provided 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 collection box (641); The first gear (643), there are two of them, which are rotatably mounted on the right side of the collection box (641) and fixedly connected to the two conveying rods (642) respectively; The second motor (645) is fixedly installed at the bottom of the mounting 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); The dust collection bin (646) is detachably mounted on the left end of the collection box (641).

6. The automatic cleaning filter for HVAC systems according to claim 5, characterized in that: The blades of the two conveying rods (642) are helical, and the rotation of the conveying rods (642) can push the particles to the left, and the two conveying rods (642) are arranged in a conjugate configuration.

7. An automatic cleaning filter for HVAC systems 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 to achieve self-cleaning.

Images