CN113237155B - Central air conditioning fresh air unit convenient to wash - Google Patents
Central air conditioning fresh air unit convenient to wash Download PDFInfo
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- CN113237155B CN113237155B CN202110415142.4A CN202110415142A CN113237155B CN 113237155 B CN113237155 B CN 113237155B CN 202110415142 A CN202110415142 A CN 202110415142A CN 113237155 B CN113237155 B CN 113237155B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a central air-conditioning fresh air unit convenient to clean, which comprises a unit body, wherein an air inlet is formed in the unit body, a fresh air device is fixedly installed at one side of the unit body, which faces away from the outdoor side, and the corresponding position of the air inlet, an air quantity sensor is fixedly installed at the center of the fresh air device, the inner walls of the two sides of the air inlet are respectively provided with a left groove and a right groove, the upper inner wall and the lower inner wall of the air inlet are respectively provided with a top groove and a bottom groove which are communicated with the left groove and the right groove, the inner bottom walls of the left groove and the right groove are symmetrically and rotatably connected with rotating shafts, and each rotating shaft is coaxially and fixedly sleeved with a roller body. Has the advantages that: the novel fresh air device is high in filtering effect, the using condition of the filter screen is automatically monitored, the filter screen is cleaned through the rotating brush roll when the using lower limit is reached, the cleaning effect is further improved through water spraying through the change of the volume of the water bag, manual cleaning is not needed, and the working efficiency of the fresh air device is guaranteed.
Description
Technical Field
The invention relates to the technical field of central air conditioners, in particular to a central air conditioner fresh air handling unit convenient to clean.
Background
The central air conditioning system is composed of one or more cold and heat source systems and a plurality of air conditioning systems, and the system is different from the traditional refrigerant type air conditioner, and the air is intensively treated (such as a single machine, VRV) to achieve the comfort requirement. The principle of liquid gasification refrigeration is adopted to provide the required cold energy for the air conditioning system so as to offset the heat load of the indoor environment; the heating system provides the air conditioning system with the required heat to offset the indoor environment cooling and heating load.
The fresh air unit in the central air conditioner is air conditioning equipment for providing fresh air for users, the temperature can reach constant temperature and humidity or be fresh air according to the using conditions of the users, the basic working principle is that relatively fresh air is extracted outdoors, then the air is dedusted, removed or humidified, cooled or heated to meet the requirements on the air, and then the air is sent indoors through a fan to replace the original air, so that the supply of the fresh air is realized.
Fresh air unit mainly relies on the filter screen to remove dust when extracting outdoor fresh air, and after long-term the use, the filter screen can adhere to the dust of certain thickness towards outdoor one side inevitablely, has reduced the indoor amount of wind that gets into in the unit interval, consequently need wash, and because fresh air unit installs usually in the furred ceiling in the room, the manual cleaning of being not convenient for seriously reduces central air conditioning's work efficiency.
In order to solve the problems, a central air-conditioning fresh air unit convenient to clean is provided.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a central air conditioning fresh air handling unit convenient to clean.
In order to achieve the purpose, the invention adopts the following technical scheme: a central air conditioning fresh air unit convenient to clean comprises a unit body, wherein an air inlet is formed in the unit body, the unit body faces away from one side outside the room, a fresh air device is fixedly installed at a corresponding position of the air inlet, an air quantity sensor is fixedly installed at the center of the air inlet of the fresh air device, a left groove and a right groove are respectively formed in the inner walls of the two sides of the air inlet, a top groove and a bottom groove which are communicated with the left groove and the right groove are respectively formed in the upper inner wall and the lower inner wall of the air inlet, rotating shafts are symmetrically and rotatably connected to the inner bottom walls of the left groove and the right groove, roller bodies are coaxially fixedly sleeved on the rotating shafts respectively, a filter screen is jointly tensioned and sleeved on the two roller bodies, the filter screen is composed of a thin filter screen and a thick filter screen which are connected end to end, rotating grooves are symmetrically formed in the inner top walls of the left groove and the right groove, a motor is embedded in the inner top wall of the left rotating groove, the output end of the motor is fixedly connected with the upper end of the rotating shaft, a thick gear and an annular cam are sequentially coaxially sleeved on the rotating shafts from bottom, a left side groove is provided with a cleaning device, and a right side cleaning device is arranged on the inner side of the filter screen; and the motor and the air volume sensor are electrically connected with a control device together.
In the central air-conditioning fresh air handling unit convenient to clean, the widths of the fine filter screen and the coarse filter screen are equal to twice of the width of the air inlet.
In the central air conditioning fresh air handling unit convenient to clean, two of the rotating shafts are coaxially and fixedly sleeved with annular limiting plates, and the limiting plates are positioned at the upper end and the lower end of the filter screen.
In foretell central air conditioning fresh air unit convenient to wash, left belt cleaning device is including rotating the left fixed axle of installing at left side inslot diapire, left brush roll has been cup jointed to left side fixed axle upper spline, left spring has been cup jointed to the activity on the fixed axle of a left side, and the lower extreme of left spring offsets with the lower extreme of left brush roll with the inner diapire fixed connection in left side groove, the upper end fixedly connected with of left brush roll and the left thin gear of thick gear meshing, the upper end fixedly connected with left crown plate of left thin gear, the upper end of left thin gear just at the inboard of left crown plate and the sealed fixedly connected with left water pocket of the inner roof in the left side groove, left water pocket communicates respectively has left water absorption pipe and left outlet pipe, the upper end of left water absorption pipe runs through the inner in left side groove and is connected with the water tank, the upper end of left outlet pipe is buckled and is set up towards the apopore inboard, left roof has been seted up to the inner roof in left side groove.
In foretell central air conditioning fresh air unit convenient to wash, right belt cleaning device is including rotating the right fixed axle of installation at right side inslot diapire, right brush roll has been cup jointed to right fixed epaxial spline, right spring has been cup jointed in the activity of right fixed axle, and the lower extreme of right spring offsets with the lower extreme of right brush roll with the inner diapire fixed connection in right side groove, the upper end fixedly connected with of right brush roll and the right thin gear of thick gear meshing, the upper end fixedly connected with right ring plate of right thin gear, the upper end of right thin gear just at the inboard of right ring plate and the sealed fixedly connected with right water pocket of the inner roof in right side groove, right water pocket communicates respectively has right suction pipe and right outlet pipe the upper end of right suction pipe runs through the roof in right side groove and is connected with the water tank, the upper end of right outlet pipe is buckled and is set up towards the filter screen outside, right apopore has been seted up to the inner roof in right side groove.
In the central air conditioning fresh air handling unit convenient to clean, the inner bottom walls of the left side groove and the right side groove are both provided with slopes, and the upper ends of the slopes are arranged close to the air inlet.
Compared with the prior art, this central air conditioning fresh air handling unit convenient to wash's advantage lies in:
1. the two sides of the filter screen are respectively attached to the inner walls of the front side and the rear side of the left side groove, the right side groove, the top groove and the bottom groove, the fine filter screen and the coarse filter screen are arranged inside and outside, namely the fine filter screen is close to the indoor space, the coarse filter screen is close to the outdoor space, the filter effect is better compared with that of a single-layer filter screen in the traditional technology, the filter pressure is shared, and the service life can be prolonged.
2. The intelligent monitoring amount of wind size, controller are according to amount of wind size starter motor, and on the one hand, the thin gear in the left side of thick gear meshing drives left brush roll and rotates, and then cleans the outside of thin filter screen, and on the other hand, left ring plate offsets the contact with cyclic annular cam all the time under the elastic support of left spring, and the water in the left water pocket is extruded and is spouted to the inboard of thin filter screen through left outlet pipe to the dust breaks away from.
3. The novel fresh air device is high in filtering effect, the using condition of the filter screen is automatically monitored, the filter screen is cleaned through the rotating brush roll when the using lower limit is reached, the cleaning effect is further improved through water spraying through the change of the volume of the water bag, manual cleaning is not needed, and the working efficiency of the fresh air device is guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of a front side of a central air conditioning fresh air handling unit convenient to clean according to the present invention;
fig. 2 is a structural cross-sectional view of a central air conditioning fresh air handling unit convenient to clean in a top view in an operating state according to the present invention;
FIG. 3 is a front sectional view of a central air conditioning fresh air handling unit according to the present invention, which is easy to clean;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;
FIG. 5 is an enlarged view of the structure at B in FIG. 3;
FIG. 6 is an enlarged view of the structure of FIG. 3 at C;
FIG. 7 is an enlarged view of the structure of FIG. 3 at D;
fig. 8 is a top view of a central air conditioning fresh air handling unit according to another embodiment of the present invention.
In the figure: 1 unit body, 2 air inlets, 3 fresh air devices, 4 air volume sensors, 5 left side grooves, 6 right side grooves, 7 rotating shafts, 8 roller bodies, 9 fine filter screens, 10 coarse filter screens, 11 limiting plates, 12 thick gears, 13 annular cams, 14 motors, 15 left brush rolls, 16 left thin gears, 17 left water bags, 18 left ring plates, 19 left water suction pipes, 20 left water outlet pipes, 21 left fixing shafts, 22 left springs, 23 left water outlet holes, 24 right brush rolls, 25 right thin gears, 26 right water bags, 27 right ring plates, 28 right water suction pipes, 29 right water outlet pipes, 30 right fixing shafts, 31 right springs and 32 right water outlet holes.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-8, a central air conditioning fresh air handling unit convenient for cleaning, comprising a unit body 1, an air inlet 2 is arranged in the unit body 1, the unit body 1 faces away from one side of the outdoor and is fixedly provided with a fresh air device 3 at a corresponding position of the air inlet 2, the fresh air device 3 is fixedly provided with an air volume sensor 4 towards the center of the air inlet 2, for the prior art, the air volume passing through the air inlet 2 can be monitored in real time, the inner walls of the two sides of the air inlet 2 are respectively provided with a left side groove 5 and a right side groove 6, the upper and lower inner walls of the air inlet 2 are respectively provided with a top groove and a bottom groove communicated with the left side groove 5 and the right side groove 6, the inner bottom walls of the left side groove 5 and the right side groove 6 are symmetrically and rotatably connected with a rotating shaft 7, each rotating shaft 7 is coaxially and fixedly sleeved with a roller body 8, the two filtering nets 8 are jointly tensioned, the filtering net is composed of a thin filtering net 9 and a thick filtering net 10 connected end to end, the inner top walls of the left side groove 5 and the right side groove 6 are symmetrically provided with rotating grooves, the upper end of the rotating shaft 7 is rotatably connected with a rotating groove, the rotating shaft 7 is rotatably connected with a left side gear cleaning device 13, the left side cam device is arranged at the inner side of the left side groove inside of the left side groove; the motor 14 and the air volume sensor 4 are electrically connected with a control device together.
The widths of the fine filter screen 9 and the coarse filter screen 10 are equal to twice of the width of the air inlet 2, and the fine filter screen 9 and the coarse filter screen 10 both meet the filtering requirements, which means that the thicknesses are only the same.
Annular limiting plates 11 are coaxially fixedly sleeved on the two rotating shafts 7, the limiting plates 11 are positioned at the upper end and the lower end of the filter screen, the filter screen is limited and transmitted between the two limiting plates 11, and the filter screen is prevented from sliding up and down and being staggered with the air inlet 2.
Left belt cleaning device is including rotating the left fixed axle 21 of installing diapire in left side groove 5, left brush roll 15 has been cup jointed to left fixed axle 21 upper spline, left spring 22 has been cup jointed in the activity on the left fixed axle 21, and left spring 22's lower extreme and the interior diapire fixed connection of left side groove 5, left spring 22's upper end offsets with the lower extreme of left brush roll 15, left spring 22 carries out elastic support to left brush roll 15, left brush roll 15's upper end fixedly connected with and the left thin gear 16 of thick gear 12 meshing, left thin gear 16's upper end fixedly connected with left crown plate 18, left thin gear 16's upper end just in the inboard of left crown plate 18 and the interior roof of left side groove 5 sealing fixedly connected with left water pocket 17, left water pocket 17 communicates left water suction pipe 19 and left outlet pipe 20 respectively, the upper end of left water suction pipe 19 runs through the interior roof of left side groove 5 and is connected with the water tank, the upper end of left outlet pipe 20 is buckled the back and is set up towards the inboard, left apopore 23 has been seted up to the interior roof of left side groove 5.
The right cleaning device comprises a right fixing shaft 30 rotatably mounted on the bottom wall in the right groove 6, a right brush roll 24 is sleeved on the right fixing shaft 30 through a spline, a right spring 31 is movably sleeved on the right fixing shaft 30, the lower end of the right spring 31 is fixedly connected with the inner bottom wall of the right groove 6, the upper end of the right spring 31 abuts against the lower end of the right brush roll 24, the upper end of the right brush roll 24 is fixedly connected with a right thin gear 25 meshed with a thick gear 12, the upper end of the right thin gear 25 is fixedly connected with a right annular plate 27, the upper end of the right thin gear 25 is fixedly connected with a right water bag 26 in a sealing mode with the inner top wall of the right groove 6 on the inner side of the right annular plate 27, the right water bag 26 is respectively communicated with a right water suction pipe 28 and the upper end of a right water outlet pipe 29, the upper end of the right water suction pipe 28 penetrates through the inner top wall of the right groove 6 and is connected with a water tank, the upper end of the right water outlet pipe 29 is bent and arranged towards the outer side of the filter screen, and a right water outlet hole 32 is formed in the inner top wall of the right groove 6.
The inner bottom wall of the left groove 5 and the inner bottom wall of the right groove 6 are both provided with slopes, the upper ends of the slopes are arranged close to the air inlet 2, and sewage convenient to gather and flow out through the water outlet holes.
According to the invention, two sides of the filter screen are respectively clung to the inner walls of the front side and the rear side of the left side groove 5, the right side groove 6, the top groove and the bottom groove, the fine filter screen 9 and the coarse filter screen 10 are arranged inside and outside, and referring to fig. 2, the fine filter screen 9 is close to the indoor space, and the coarse filter screen 10 is close to the outdoor space.
In the using process, the air quantity sensor 4 monitors the air quantity in real time and feeds the air quantity back to the controller, when the air quantity is in a set lower limit, it is described that dust attached to the filter screen affects the normal use of the fresh air device 3, the controller controls the motor 14 to work, the motor 14 rotates clockwise (refer to fig. 2) first, the roller bodies 8 are driven to rotate through the rotating shaft 7, the filter screen transmission enables the central lines of the fine filter screen 9 and the coarse filter screen 10 originally located in the air inlet 2 to rotate to the two roller bodies 8 respectively (not the whole fine filter screen 9 and the whole coarse filter screen 10), the attached dust is cleaned through the left cleaning device and the right cleaning device, the rear motor 14 rotates anticlockwise, the fine filter screen 9 and the coarse filter screen 10 which are not used are enabled to rotate to the air inlet 2 (namely the fine filter screen 9 and the coarse filter screen 10 which are originally located in the left groove 5 and the right groove 6 respectively, and the cleaned fine filter screen 9 and the coarse filter screen 10 rotate to the right groove 6 and the left groove 5 respectively to dry water, refer to fig. 2 and fig. 8).
The cleaning process is illustrated by taking a left cleaning device as an example: the motor 14 drives the thick gear 12 and the annular cam 13 synchronously in the process of driving the rotating shaft 7 to rotate, on one hand, the thick gear 12 is meshed with the left thin gear 16 to drive the left brush roller 15 to rotate, so that the outer side of the fine filter screen 9 is cleaned, on the other hand, the left annular plate 18 is always in contact with the annular cam 13 under the elastic support of the left spring 22, the internal pressure of the left water bag 17 is periodically reduced and increased, in the process of reducing the internal pressure of the left water bag 17, water in the water tank is pressed into the left water bag 17 through the left water suction pipe 19 by atmospheric pressure, in the process of increasing the internal pressure of the left water bag 17, the water in the left water bag 17 is pressed out through the left water outlet pipe 20 and sprayed to the inner side of the fine filter screen 9, so that dust is separated, water flow carrying the dust flows to the inner bottom of the left groove 5, sewage flows out through the left water outlet hole 23, the left brush roller 15 moves up and down, but the left thin gear 16 is always meshed with the thick gear 12; the right cleaning device works on the same principle as the left cleaning device, except that the right brush roll 24 cleans the inner side of the coarse filter screen 10, and the water sprayed from the right water outlet pipe 29 is pressed out and sprayed to the outer side of the coarse filter screen 10, so as to adapt to the filtering surfaces of the fine filter screen 9 and the coarse filter screen 10 which have different functions.
On the basis of the above working principle, on the premise that the driving speed of the motor 14 and the width of the air inlet 2 are known, the time for driving the motor 14 clockwise or counterclockwise can be obtained and is set by the controller.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. A central air conditioning fresh air unit convenient to clean comprises a unit body (1) and is characterized in that an air inlet (2) is formed in the unit body (1), the unit body (1) faces away from one outdoor side and a fresh air device (3) is fixedly installed at a corresponding position of the air inlet (2), an air quantity sensor (4) is fixedly installed at the center of the fresh air device (3) facing the air inlet (2), a left groove (5) and a right groove (6) are respectively formed in inner walls of two sides of the air inlet (2), a top groove and a bottom groove communicated with the left groove (5) and the right groove (6) are respectively formed in the upper and lower inner walls of the air inlet (2), a rotating shaft (7) is symmetrically and rotatably connected with the inner bottom wall of the left groove (5) and the right groove (6), roller bodies (8) are coaxially and fixedly sleeved on the rotating shaft (7), the two roller bodies (8) are jointly tensioned and sleeved with a filter screen, the filter screen is composed of a thin filter screen (9) and a thick filter screen (10) which are connected end to end of the left groove (5) and the inner wall of the right groove (6) are symmetrically and a motor (14) is connected with the rotating shaft (7), each rotating shaft (7) is coaxially fixedly sleeved with a thick gear (12) and an annular cam (13) from bottom to top in sequence, the left side groove (5) is provided with a left cleaning device on the left side of the filter screen, and the right side groove (6) is provided with a right cleaning device on the inner side of the filter screen; the motor (14) and the air volume sensor (4) are electrically connected with a control device together;
the widths of the fine filter screen (9) and the coarse filter screen (10) are equal to two times of the width of the air inlet (2); the two sides of the filter screen are respectively clung to the inner walls of the front side and the rear side of the left groove (5), the right groove (6), the top groove and the bottom groove, and the fine filter screen (9) and the coarse filter screen (10) are arranged inside and outside;
the left cleaning device comprises a left fixing shaft (21) rotatably mounted on the inner bottom wall of a left side groove (5), a left brush roller (15) is sleeved on the left fixing shaft (21) in a spline mode, a left spring (22) is movably sleeved on the left fixing shaft (21), the lower end of the left spring (22) is fixedly connected with the inner bottom wall of the left side groove (5), the upper end of the left spring (22) abuts against the lower end of the left brush roller (15), a left thin gear (16) meshed with a thick gear (12) is fixedly connected to the upper end of the left brush roller (15), a left ring plate (18) is fixedly connected to the upper end of the left thin gear (16), a left water bag (17) is fixedly connected to the inner top wall of the left side groove (5) in a sealing mode on the inner side of the left ring plate (18), the left water bag (17) is respectively communicated with a left water suction pipe (19) and a left water outlet pipe (20), the upper end of the left water suction pipe (19) penetrates through the inner top wall of the left side groove (5) and is connected with a water tank, the inner top wall of the left water outlet pipe (23) is arranged towards the inner side groove, and a left water outlet hole (23) is formed in the back of the left water outlet pipe;
the right cleaning device comprises a right fixing shaft (30) rotatably mounted on the inner bottom wall of the right groove (6), a right brush roll (24) is sleeved on the right fixing shaft (30) through a spline, a right spring (31) is movably sleeved on the right fixing shaft (30), the lower end of the right spring (31) is fixedly connected with the inner bottom wall of the right groove (6), the upper end of the right spring (31) is abutted against the lower end of the right brush roll (24), the upper end of the right brush roll (24) is fixedly connected with a right thin gear (25) meshed with a thick gear (12), the upper end of the right thin gear (25) is fixedly connected with a right annular plate (27), the upper end of the right thin gear (25) and the inner top wall of the right groove (6) on the inner side of the right annular plate (27) are fixedly connected with a right water bag (26) in a sealing manner, the right water bag (26) is respectively communicated with a right water suction pipe (28) and a right water outlet pipe (29), the upper end of the right water suction pipe (28) penetrates through the inner top wall of the right groove (6) and is connected with a right water tank, the right water outlet pipe (29) is arranged on the outer side of the right water outlet hole, and a right water outlet hole (32) is arranged on the upper end of the right water outlet pipe (6) facing the right water outlet pipe (29);
the air volume sensor (4) monitors the air volume in real time and feeds the air volume back to the controller, when the air volume is at a set lower limit, the fact that dust attached to the filter screen influences the normal use of the fresh air device (3) is indicated, the controller controls the motor (14) to work, the motor (14) rotates clockwise firstly, the roller bodies (8) are driven to rotate through the rotating shaft (7), the filter screen drives the center lines of the fine filter screen (9) and the coarse filter screen (10) which are originally positioned in the air inlet (2) to rotate to the positions of the two roller bodies (8) respectively, the whole fine filter screen (9) and the whole coarse filter screen (10) are not rotated, the attached dust is cleaned through the left cleaning device and the right cleaning device, the rear motor (14) rotates anticlockwise, the unused fine filter screen (9) and the coarse filter screen (10) rotate to the air inlet (2), namely, the fine filter screen (9) and the coarse filter screen (10) which are originally positioned in the left groove (5) and the right groove (6) respectively rotate to the left groove (6) and dry the left groove (5) respectively;
the motor (14) synchronously drives the thick gear (12) and the annular cam (13) in the process of driving the rotating shaft (7) to rotate, the thick gear (12) is meshed with the left thin gear (16) to drive the left brush roller (15) to rotate, so that the outer side of the fine filter screen (9) is cleaned, the left annular plate (18) is always in contact with the annular cam (13) in a propping manner under the elastic support of the left spring (22), the internal pressure of the left water bag (17) is periodically reduced and increased, in the process of reducing the internal pressure of the left water bag (17), water in the water tank is pressed into the left water bag (17) through the left water suction pipe (19) by atmospheric pressure, in the process of increasing the internal pressure of the left water bag (17), the water in the left water bag (17) is pressed out through the left water outlet pipe (20) and sprayed to the inner side of the fine filter screen (9) so that dust is separated, water flow carrying the dust flows to the inner bottom of the left groove (5), sewage flows out through the left water outlet hole (23), and the left gear (15) is meshed with the left brush roller (12) and moves up and down; the right brush roll (24) cleans the inner side of the coarse filter screen (10), and water sprayed from the right water outlet pipe (29) is pressed out and sprayed to the outer side of the coarse filter screen (10).
2. The central air-conditioning fresh air handling unit convenient to clean as claimed in claim 1, wherein the two rotating shafts (7) are coaxially and fixedly sleeved with annular limiting plates (11), and the limiting plates (11) are positioned at the upper and lower ends of the filter screen.
3. The central air-conditioning fresh air handling unit convenient to clean as claimed in claim 1, wherein the inner bottom walls of the left groove (5) and the right groove (6) are provided with slopes, and the upper ends of the slopes are arranged near the air inlet (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110415142.4A CN113237155B (en) | 2021-04-17 | 2021-04-17 | Central air conditioning fresh air unit convenient to wash |
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| CN202110415142.4A CN113237155B (en) | 2021-04-17 | 2021-04-17 | Central air conditioning fresh air unit convenient to wash |
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| CN113237155A CN113237155A (en) | 2021-08-10 |
| CN113237155B true CN113237155B (en) | 2023-03-21 |
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| CN209181119U (en) * | 2018-11-30 | 2019-07-30 | 广东美的制冷设备有限公司 | Filter screen cleaning module and air processor |
| CN209405954U (en) * | 2018-12-21 | 2019-09-20 | 四川源之蓝环保科技有限公司 | A kind of efficient filter cylinder dust-extraction unit |
| CN113218005A (en) * | 2019-01-31 | 2021-08-06 | Lg电子株式会社 | Air conditioner |
| CN209792049U (en) * | 2019-02-15 | 2019-12-17 | 浙江晶晶绝缘材料有限公司 | Efficient-cleaning plate washing machine |
| CN209877200U (en) * | 2019-02-22 | 2019-12-31 | 德业日本株式会社 | Novel healthy air purifier |
| CN210165535U (en) * | 2019-06-20 | 2020-03-20 | 石家庄丰环环保设备有限公司 | Air-out structure of air conditioning equipment |
| CN212715258U (en) * | 2020-06-17 | 2021-03-16 | 江苏华实装配式建筑技术有限公司 | Urban rainwater collecting and filtering device |
| CN112082232A (en) * | 2020-10-21 | 2020-12-15 | 温州莜例贸易有限公司 | Environment-friendly air purifier |
| CN112413745A (en) * | 2020-11-30 | 2021-02-26 | 许道文 | Energy-saving and environment-friendly heating ventilation air conditioning device |
| CN112628933A (en) * | 2020-12-29 | 2021-04-09 | 温州康陀信息技术有限公司 | Household movable air purifier |
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2021
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Effective date of registration: 20230302 Address after: 518000 floor 11, No. 2, Shuiku Road, Bantian street, Longgang District, Shenzhen City, Guangdong Province Applicant after: Xingding Engineering (Shenzhen) Co.,Ltd. Address before: 550001 Guizhou Institute of technology, No.1 Caiguan Road, Yunyan District, Guiyang City, Guizhou Province Applicant before: Li Mengmeng |
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