CN107327910B - Return air filter equipment and tuber pipe indoor set - Google Patents
Return air filter equipment and tuber pipe indoor set Download PDFInfo
- Publication number
- CN107327910B CN107327910B CN201710502713.1A CN201710502713A CN107327910B CN 107327910 B CN107327910 B CN 107327910B CN 201710502713 A CN201710502713 A CN 201710502713A CN 107327910 B CN107327910 B CN 107327910B
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- filter screen
- air
- rack
- return air
- frame
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- 238000001914 filtration Methods 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 abstract description 14
- 230000002238 attenuated effect Effects 0.000 abstract description 4
- 238000005034 decoration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a return air filtering device and an air pipe indoor unit, wherein the return air filtering device comprises: the spiral case is provided with a return air channel, and at least one air inlet is arranged on the return air channel; the filtering mechanisms are in one-to-one correspondence with the air inlets, and are movably arranged on the volute in a mode of being capable of partially or completely covering the air inlets. According to the invention, the filtering mechanism is arranged on the air inlet of the return air channel of the volute and is movably arranged on the volute in a mode of partially or completely covering the air inlet, so that the purposes of controlling the degree of filtering air and the air quantity through the position of the filtering mechanism are achieved, and the air quantity is not excessively attenuated on the premise of ensuring a certain filtering effect.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a return air filtering device and an air pipe indoor unit.
Background
The air pollution is serious at present, the demand on the central air conditioner PM2.5 filter screen accessory of the home decoration type on the market is larger and larger, but most of air pipe indoor units used by the home decoration are low static pressure air pipe machines, and the air pipe indoor units are characterized in that the air outlet speed and the air quantity are smaller, and the air quantity attenuation is large after the PM2.5 filter screen is completely carried in the return air inlet of the air pipe indoor unit, so that the refrigerating/heating effect of the air conditioner is greatly influenced.
Disclosure of Invention
In order to solve the technical problems, the invention discloses a return air filtering device and an air pipe indoor unit, and solves the problem that the air quantity is greatly attenuated after a PM2.5 filter screen is mounted at a return air inlet of the air pipe indoor unit.
According to one aspect of the present invention, there is disclosed a return air filtration device comprising: the spiral case is provided with a return air channel, and at least one air inlet is arranged on the return air channel; the filtering mechanisms are in one-to-one correspondence with the air inlets, and are movably arranged on the volute in a mode of being capable of partially or completely covering the air inlets.
Further, the filtering mechanism includes: the filter screen frame is arranged at the air inlet, and the area covered by the filter screen frame is larger than the cross section area of the air inlet; the filter screen is arranged in the filter screen frame and can move on the filter screen frame in a mode of partially or completely covering the air inlet.
Further, the filter screen has a first position covering a portion of the air intake and a second position covering the air intake completely.
Further, the filtering mechanism further comprises a driving gear and a rack, the driving gear is fixedly arranged on the filter screen frame, the rack is arranged on the side edge of the filter screen, and the driving gear is meshed with the rack to drive the filter screen to move on the filter screen frame.
Further, the screen frame is provided with a guide groove, and at least one side of the rack is provided with a guide protrusion, and the guide protrusion is slidably arranged in the guide groove.
Further, the filter screen frame includes preceding frame, back frame and connecting plate, preceding frame with the back frame sets up relatively and passes through the connecting plate is connected, preceding frame with be provided with on the opposite side of back frame the guide slot.
Further, the rack is further provided with two limiting plates, the limiting plates are detachably connected to the filter screen, and the two limiting plates are connected to two ends of the filter screen in the length direction or the width direction.
Further, the rack has opposite first and second sides, the first side of the rack is provided with teeth for meshing with the drive gear, the second side of the rack is provided with the limiting plate, and the limiting plate extends towards a direction facing away from the first side of the rack.
Further, the area of the filter screen is not smaller than the cross-sectional area of the air inlet.
Further, the filter screen is a PM2.5 filter screen.
According to another aspect of the invention, an air duct indoor unit is also disclosed, comprising the return air filtering device.
According to the invention, the filtering mechanism is arranged on the air inlet of the return air channel of the volute and is movably arranged on the volute in a mode of being capable of partially or completely covering the air inlet, so that the aim of controlling the degree of filtering air and the air quantity through the position of the filtering mechanism is fulfilled. When the air is required to be filtered, the filtering mechanism is completely covered on the air inlet, so that the air at the air inlet is completely filtered, and the effect of filtering and purifying the air is obvious; when the air quantity is required to be large, the filtering mechanism is partially covered on the air inlet, one part of air enters the return air channel after being filtered by the filtering mechanism, and meanwhile, the other part of air directly enters the return air channel without being filtered, so that the air quantity of the air inlet can be ensured to be maintained at the original level on the premise of ensuring a certain filtering effect.
Drawings
FIG. 1 is a schematic view of a prior art return air duct for an air duct indoor unit;
FIG. 2 is a schematic view of a return air filter assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a filter screen of a return air filter according to an embodiment of the present invention in a second position;
FIG. 4 is a schematic side view of a filter screen frame of a return air filter according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4A;
FIG. 6 is a schematic view of the front view of a filter screen frame of a return air filter according to an embodiment of the present invention;
FIG. 7 is a schematic top view of a filter screen frame of a return air filter according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a rack configuration of a return air filter assembly according to an embodiment of the present invention;
legend: 1. a return air channel; 11. an air inlet; 2. a filtering mechanism; 21. a screen frame; 211. a front frame; 212. a rear frame; 213. a connecting plate; 214. a guide groove; 215. a bracket; 216. an avoidance port; 22. a filter screen; 23. a stepping motor; 24. a drive gear; 25. a rack; 251. a guide protrusion; 252. and a limiting plate.
Detailed Description
The invention is further illustrated, but is not limited to, the following examples.
As shown in fig. 1, in the prior art, an air inlet 11 is provided at one side of a volute of a return air channel 1, and a fan rotates to suck air into the return air channel 1 through the air inlet 11. As shown in fig. 2, the invention discloses a return air filtering device, which comprises a volute and a filtering mechanism 2, wherein the volute is provided with a return air channel 1, and at least one air inlet 11 is arranged on the return air channel 1; the filter mechanisms 2 are in one-to-one correspondence with the air inlets 11, and the filter mechanisms 2 are movably disposed on the volute in such a manner as to be capable of partially or completely covering the air inlets 11. The air inlet 11 of the return air channel 1 of the volute is provided with the filter mechanism 2, and the filter mechanism 2 is movably arranged on the volute in a mode of being capable of partially or completely covering the air inlet 11, so that the degree of filtering air and the air quantity are controlled through the position of the filter mechanism 2, when the air needs to be filtered, the filter mechanism 2 is completely covered on the air inlet 11, the air of the air inlet 11 is completely filtered, and the effect of filtering and purifying the air is obvious; when the required air quantity is large, the filtering mechanism 2 is partially covered on the air inlet 11, one part of air enters the return air channel 1 after being filtered by the filtering mechanism 2, and meanwhile, the other part of air directly enters the return air channel 1 without being filtered, so that the air quantity is not excessively attenuated on the premise of ensuring a certain filtering effect.
In the above embodiment, the filter mechanism 2 includes: the filter screen frame 21, the filter screen frame 21 is set up in the department of air intake 11, and the area covered by the filter screen frame 21 is greater than the cross-sectional area of the air intake 11; the filter screen 22, the filter screen 22 is disposed in the filter screen frame 21, and can move on the filter screen frame 21 along a way of partially or completely covering the air inlet 11 in the filter screen frame 21. Through installing filter screen 22 in filter screen frame 21, and can remove on filter screen frame 21 along the mode of partly or completely covering air intake 11 in filter screen frame 21, make filter screen 22 can cover on the air intake completely, the air filtration that the maximum efficiency will pass, still, partly cover on air intake 11, make a portion of air directly enter into the room, reduced the resistance that the air directly got into the room, both played the effect of certain filtration PM2.5, the amount of wind of assurance can not produce too big decay again.
As shown in fig. 2 and 3, in the above embodiment, the filter screen 22 has a first position covering a portion of the air intake 11, and a second position covering the air intake 11 entirely. When the air purifier is used, when the over-purification mode is required to be started, the filter screen 22 is moved to the first position, namely the air inlet 11 is completely covered, so that external air passes through the filter screen 22 and then enters the air inlet 11, and the air purifying effect is obvious; as shown in fig. 6, when the normal mode is required, the filter screen 22 is moved to the second position, that is, the filter screen 22 partially covers the air inlet 11, and a part of air directly enters the air inlet, so that the resistance of the filter screen 22 to the air is reduced, and the air supply rate can be increased at this time, and the air supply rate is prevented from excessively attenuating.
In the above embodiment, the filtering mechanism 2 further includes a driving gear 24 and a rack 25, where the driving gear 24 is fixedly disposed on the filter screen frame 21, and the rack 25 is disposed on a side edge of the filter screen 22 and can be meshed with the driving gear 24 to drive the filter screen 22 to move on the filter screen frame 21. The rack 25 is driven by the driving gear 24 arranged on the filter screen frame 21, so that the filter screen 22 is driven to move in the filter screen frame 21, and the device is simple in structure, convenient to operate, convenient to maintain and more convenient to control.
In the above-described embodiment, as shown in fig. 4 and 5, the screen frame 21 is provided with the guide groove 214, at least one side of the rack bar 25 is provided with the guide projection 251, the guide projection 251 is slidably provided in the guide groove 214, as shown in fig. 8, the rack bar 25 has opposite first and second sides, the first side of the rack bar 25 is provided with teeth for meshing with the drive gear 24, the second side of the rack bar 25 is provided with the limiting plate 252, and the limiting plate 252 is provided extending in a direction away from the first side of the rack bar 25. By providing the guide protrusions 251 on the guide grooves 214 and the racks 25 on the screen frame 21 and matching the guide protrusions 251 with the guide grooves 214, when the drive gear 24 drives the racks 25 to move, the guide protrusions 251 slide in the guide grooves 214 along the arrangement direction of the guide grooves 214, so as to prevent the racks 25 from deviating when moving, and the reliability of the filter mechanism 2 is increased.
In the above embodiment, the screen frame 21 includes the front frame 211, the rear frame 212, and the connection plate 213, the front frame 211 is disposed opposite to the rear frame 212 and connected by the connection plate 213, and the guide grooves 214 are provided on opposite sides of the front frame 211 and the rear frame 212. The front frame 211 and the rear frame 212 are connected through the connecting plate 213, so that a certain interval is left between the front frame 211 and the rear frame 212, the rack 25 can be conveniently inserted into the filter screen frame 21 from two sides of the filter screen frame 21, and the guide protrusions 251 can be conveniently inserted into or taken out from two sides of the guide grooves 214, so that the installation or maintenance process is very convenient.
In the above embodiment, the rack 25 is further formed with two limiting plates 252, the limiting plates 252 are detachably connected to the filter screen 22, and the two limiting plates 252 are connected to both ends of the filter screen 22 in the length direction or the width direction. The filter screen 22 can be very conveniently installed and fixed on the rack 25 through the limiting plate 252, and the filter screen 22 is more conveniently replaced by a detachable connection mode, so that the installation or maintenance efficiency is improved.
In the above embodiment, as shown in fig. 6 and 7, the support 215 is provided on the screen frame 21, the stepping motor 23 is provided on the support 215, the driving gear 24 is mounted on the driving shaft of the stepping motor 23, and the driving gear 24 is driven to rotate by the stepping motor 23, and in addition, in order to increase the reliability of the screen frame 21, a connection plate 213 may be provided on the opposite side of the connection plate 213, and the avoidance opening 216 may be provided on the connection plate 213 on the side, so that the driving gear 24 and the rack 25 may be engaged at the avoidance opening 216. When in use, as shown in fig. 2, when the over-purification mode is required to be started, the stepping motor 23 is controlled to rotate so as to drive the driving gear 24 to rotate, the driving gear 24 is driven to rotate so as to drive the rack 25 to move, the rack 25 drives the filter screen 22 to move to a first position, namely, the air inlet 11 of the return air channel 1 is completely covered, air entering from the air inlet 11 is filtered by the PM2.5 filter screen, the effect of purifying the air is obvious, and meanwhile, the effect of controlling the air quantity is played; as shown in fig. 3, when the normal mode is required, the step motor 23 rotates reversely to move the filter screen 22 to the second position, that is, partially cover the air inlet 11, so that part of air is filtered by the filter screen 22, and the other part of air directly enters the air inlet 11, and the air intake of the air inlet 11 can be maintained at the original level under the premise of ensuring a certain filtering effect.
In the above embodiment, the filter screen 22 is a PM2.5 filter screen, and the area of the filter screen 22 is not smaller than the cross-sectional area of the air inlet 11, so as to ensure the filtering effect covered behind the air inlet 11, and effectively purify the air.
An air duct indoor unit comprises the return air filtering device.
The original filtering mechanism 2 arranged in the return air channel 1 is changed from a full-coverage mode to an adjustable partial-coverage mode or a full-coverage mode, so that when filtering is needed, the filtering mechanism 2 is fully covered on the air inlet 11, and the air of the air inlet 11 is fully filtered, and the effect of filtering and purifying the air is obvious; when the required air quantity is large, the filtering mechanism 2 is partially covered on the air inlet 11, a part of air enters the room after being filtered by the filtering mechanism 2, and meanwhile, the other part of air directly enters the room without being filtered, so that the air quantity is not excessively attenuated on the premise of ensuring a certain filtering effect.
It should be understood that the above-described embodiments of the present invention are provided by way of example only and are not intended to limit the scope of the invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. Not all embodiments are exhaustive. All obvious changes or modifications which come within the spirit of the invention are desired to be protected.
Claims (7)
1. A return air filtration apparatus comprising:
the spiral case is provided with a return air channel (1), and at least one air inlet (11) is formed in the return air channel (1);
the filtering mechanisms (2) are in one-to-one correspondence with the air inlets (11), and the filtering mechanisms (2) are movably arranged on the volute in a mode of being capable of partially or completely covering the air inlets (11);
the filter mechanism (2) comprises:
the filter screen frame (21), the filter screen frame (21) is arranged at the air inlet (11), and the area covered by the filter screen frame (21) is larger than the cross-sectional area of the air inlet (11);
a filter screen (22), wherein the filter screen (22) is arranged in the filter screen frame (21) and can move on the filter screen frame (21) in a mode of partially or completely covering the air inlet (11);
the filter screen (22) has a first position covering part of the air inlet (11) and a second position completely covering the air inlet (11);
the filter mechanism (2) further comprises a driving gear (24) and a rack (25), the driving gear (24) is fixedly arranged on the filter screen frame (21), the rack (25) is arranged on the side edge of the filter screen (22), and the driving gear (24) is meshed with the rack (25) to drive the filter screen (22) to move on the filter screen frame (21);
the screen frame (21) is provided with a guide groove (214), at least one side of the rack (25) is provided with a guide protrusion (251), and the guide protrusion (251) is slidably arranged in the guide groove (214).
2. The return air filtering device according to claim 1, wherein the filter screen frame (21) comprises a front frame (211), a rear frame (212) and a connecting plate (213), the front frame (211) is disposed opposite to the rear frame (212) and is connected by the connecting plate (213), and the guide groove (214) is disposed on opposite sides of the front frame (211) and the rear frame (212).
3. The return air filtering device according to claim 1, wherein the rack (25) is further formed with two limiting plates (252), the limiting plates (252) are detachably connected to the filter screen (22), and the two limiting plates (252) are connected to both ends of the filter screen (22) in a length direction or a width direction.
4. A return air filtering device according to claim 3, wherein the rack (25) has opposite first and second sides, the first side of the rack (25) being provided with teeth for engagement with the drive gear (24), the second side of the rack (25) being provided with the limiting plate (252), the limiting plate (252) extending in a direction away from the first side of the rack (25).
5. The return air filtering device according to claim 1, characterized in that the area of the filter screen (22) is not smaller than the cross-sectional area of the air intake (11).
6. Return air filter arrangement according to claim 1, characterized in that the filter screen (22) is a PM2.5 filter screen.
7. An air duct indoor unit comprising a return air filter assembly as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502713.1A CN107327910B (en) | 2017-06-27 | 2017-06-27 | Return air filter equipment and tuber pipe indoor set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502713.1A CN107327910B (en) | 2017-06-27 | 2017-06-27 | Return air filter equipment and tuber pipe indoor set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107327910A CN107327910A (en) | 2017-11-07 |
| CN107327910B true CN107327910B (en) | 2023-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710502713.1A Active CN107327910B (en) | 2017-06-27 | 2017-06-27 | Return air filter equipment and tuber pipe indoor set |
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| Country | Link |
|---|---|
| CN (1) | CN107327910B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224709A (en) * | 2018-01-10 | 2018-06-29 | 广东美的暖通设备有限公司 | The control method of electric-controlled box, air conditioner and air conditioner |
| CN108571799A (en) * | 2018-05-08 | 2018-09-25 | 青岛科瑞新型环保材料集团有限公司 | A kind of dust filtering component cleaning apparatus for self and fresh air system with stopper |
| CN108954511B (en) * | 2018-07-03 | 2023-08-29 | 珠海格力电器股份有限公司 | Air duct type air conditioner and control method of air conditioner |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005069503A (en) * | 2003-08-27 | 2005-03-17 | Kobe Faamu:Kk | Air conditioning unit |
| CN203928153U (en) * | 2014-06-16 | 2014-11-05 | 美的集团股份有限公司 | Air conditioner room unit and air-conditioner |
| CN205372780U (en) * | 2016-01-13 | 2016-07-06 | 刘奇 | Air conditioner with air purification device |
| CN205402993U (en) * | 2016-02-16 | 2016-07-27 | 牛玉明 | Double mode fresh air purification machine and indoor air purification circulation system |
| CN106765736A (en) * | 2017-03-15 | 2017-05-31 | 中创意德（北京）科技发展有限公司 | A kind of air cleaning unit, fan coil and central air-conditioning |
| CN207006370U (en) * | 2017-06-27 | 2018-02-13 | 珠海格力电器股份有限公司 | Return air filter device and air pipe indoor unit |
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2017
- 2017-06-27 CN CN201710502713.1A patent/CN107327910B/en active Active
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| CN107327910A (en) | 2017-11-07 |
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