CN205448209U - Air fairing and air conditioner - Google Patents
Air fairing and air conditioner Download PDFInfo
- Publication number
- CN205448209U CN205448209U CN201521134261.9U CN201521134261U CN205448209U CN 205448209 U CN205448209 U CN 205448209U CN 201521134261 U CN201521134261 U CN 201521134261U CN 205448209 U CN205448209 U CN 205448209U
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- air
- fairing
- spiral case
- lower frame
- wind guide
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- 210000005056 cell body Anatomy 0.000 claims abstract description 22
- 238000010992 reflux Methods 0.000 abstract description 9
- 230000010349 pulsation Effects 0.000 abstract description 8
- 230000003068 static effect Effects 0.000 abstract description 5
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000827 velocimetry Methods 0.000 description 1
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Abstract
The utility model discloses an air fairing, this air fairing include dog subassembly and wind channel spiral case, the free tubular wine wheel of transferring the ware of holding in the spiral case of wind channel, this wind channel spiral case be including the lower frame and the last frame that constitute the air conditioner wind channel, the tubular wine wheel of air conditioner was introduced to the wind channel spiral case air flow guide flows to the air outlet in wind channel, the dog subassembly includes a plurality of wind guide strips, the wind guide strip interval sets up be close to air outlet department on the lower frame, the one end orientation of cell body between two wind guide strips inside the spiral case of wind channel. The utility model further discloses an air conditioner. The utility model discloses reduced the air -out cross -section of air outlet, the part has promoted the velocity of flow of eluting gas, uses pnematic pressure and increases to the air -out dynamic pressure is bigger just can overcome bigger air current backward flow static pressure, thereby restraines the outer gas reflux of air outlet to the air outlet in, and then has restrained the pulsation sound of surging, has also solved the dog subassembly simultaneously and has appeared the condensation problem because of keeping out the wind.
Description
Technical field
This utility model relates to air-conditioning technical field, particularly relates to a kind of air fairing and air-conditioner.
Background technology
Part equipped with the separated wall hanging type air conditioner of tubular wine wheel in order to take into account refrigeration time, wind energy is the most up blown, when heating, wind energy is down blown, and when designing air outlet duct, conscious will press under the molded line of air outlet upper end, but for keeping the air-out expansion segment angle of flare, air outlet lower end molded line also can conscious under press, in air outlet direction, air outlet diffuser low bottom-disc can form the low regime of relative other positions of air outlet；Particularly after air-conditioner life-time service, under drainage screen laying dust, or air-conditioner refrigerating state, evaporator fin hydrops, air intake resistance all can be caused to increase, air intake has some setbacks, and during with rotating speed, can fall sharply under air quantity compared with normal state；Thus causing local, air conditioner air-out region wind speed too small, part low regime is not enough to overcome air channel inside static pressure, produces in the gas backstreaming outside air port enters air outlet the generation causing pulsation surge sound.
Utility model content
Main purpose of the present utility model is to provide a kind of air fairing and air-conditioner, it is intended to solves air-conditioner and the technical problem of pulsation surge sound occurs.
For achieving the above object, this utility model embodiment provides a kind of air fairing, this air fairing includes stop component and air-duct spiral case, the tubular wine wheel of air-conditioner it is equipped with in described air-duct spiral case, this air-duct spiral case includes lower frame and the upper side frame constituting air-conditioned wind tunnel, the air outlet that the air-flow that the tubular wine wheel of air-conditioner is introduced by described air-duct spiral case guides to air channel flows out, described stop component includes multiple wind guide strip, described wind guide strip is disposed on described lower frame at air outlet, between two wind guide strips, one end of cell body is towards inside described air-duct spiral case.
Preferably, described wind guide strip is curved bars, and this wind guide strip includes the line part parallel with air conditioner air-out direction and the curved portions being connected with this line part away from tubular wine wheel one end.
Preferably, the cross-sectional width of described line part is less than the cross-sectional width minima of described curved portions.
Preferably, described curved portions includes windward side cambered surface and the leeward side cambered surface being oppositely arranged, and the curvature of described windward side cambered surface is more than the curvature of leeward side cambered surface.
Preferably, described wind guide strip is disposed in parallel relation to one another, and the spacing between described line part is more than the spacing between described curved portions.
The angle being preferably based on described lower frame and upper side frame determines air-conditioner low regime on this lower frame, and described wind guide strip is arranged in this low regime.
Preferably, described low regime is the eccentric positive and negative 15 degree of regions radiated of vertical line on described lower frame, this bias vertical line be the center of the eccentric vortex with air-conditioned wind tunnel be basic point, the vertical line made to described lower frame place plane.
Preferably, described stop component is multiple, and this stop component is located at described lower frame two ends along its length.
Preferably, described stop component is fixing with described lower frame is connected or one-body molded.
This utility model embodiment also provides for a kind of air-conditioner, described air-conditioner includes above-mentioned air fairing and tubular wine wheel, described tubular wine wheel is arranged in the air-duct spiral case of this air fairing, and this tubular wine wheel introduces the air outlet blowout in the air channel that external air flow is drained to the upper side frame of this air-duct spiral case by described air-duct spiral case and lower frame is constituted.
This utility model is by arranging stop component at the lower frame of air fairing at air outlet, one end of cell body between the wind guide strip of stop component is towards the inside of air-duct spiral case, reduce the air-out cross section of air outlet, the local lifting flow velocity of eluting gas, use pneumatic pressure to strengthen, thus air-out dynamic pressure is the biggest just can overcome bigger airflow reflux static pressure, thus suppress the outer gas of air outlet to be back in air outlet, and then inhibit pulsation surge sound, thus solve air-conditioner and the technical problem of pulsation surge sound occurs.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to the structure shown in these accompanying drawings.
Fig. 1 is this utility model air fairing section the first schematic diagram；
Fig. 2 is this utility model air fairing section the second schematic diagram；
Fig. 3 is stop component section first schematic diagram of this utility model air fairing；
Fig. 4 is stop component section second schematic diagram of this utility model air fairing；
Fig. 5 is this air-conditioning fairing and the position relationship schematic diagram of air-conditioner in this utility model air-conditioning fairing one embodiment；
Fig. 6 is the partial enlarged drawing in A portion in Fig. 5.
Drawing reference numeral illustrates:
| Rectification block 1 | Air-duct spiral case 2 | Lower frame 21 | Upper side frame 22 |
| Tubular wine wheel 10 | Wind direction F | Center of vorticity O | Air outlet W |
| Low regime S | Boundary point P | Wind guide strip 11 | Line part 111 |
| Curved portions 112 | Windward side cambered surface B1 | Leeward side cambered surface B2 |
The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Need explanation, in this utility model embodiment, directional instruction (such as up, down, left, right, before and after ...) is only used for explanation relative position relation under a certain particular pose (as shown in drawings) between each parts, motion conditions etc., if this particular pose changes, then directionality instruction changes the most therewith.
It addition, the description relating to " first ", " second " etc. in this utility model is only used for describing purpose, and it is not intended that indicate or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.Additionally; technical scheme between each embodiment can be combined with each other; but must be based on those of ordinary skill in the art are capable of; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme does not exists, the most not this utility model require protection domain within.
The utility model proposes a kind of air fairing, with reference to Fig. 1, Fig. 5 and Fig. 6, this air fairing includes stop component 1 and air-duct spiral case 2, the tubular wine wheel 10 of air-conditioner it is equipped with in air-duct spiral case 2, this air-duct spiral case 2 includes lower frame 21 and the upper side frame 22 constituting air-conditioned wind tunnel, the air outlet W that the air-flow that the tubular wine wheel 10 of air-conditioner is introduced by air-duct spiral case 2 guides to air channel flows out, stop component 1 includes multiple wind guide strip 11, wind guide strip 11 is disposed on lower frame 21 at air outlet, between two wind guide strips 11, one end of cell body is internal towards air-duct spiral case 2.
Air-duct spiral case 2 is by mounted therein for tubular wine wheel 10, the inwall of air-duct spiral case 2 carries out drain (as shown in Fig. 1 air current flow direction F) to tubular wine wheel 10 from the air-flow of extraneous suction, major part air-flow circulation is flowed out to air conditioner wind outlet W, and fraction air-flow is again introduced into the circulation of air flow in air-duct spiral case 2 from the vortex tongue walking around upper side frame 22 end.Stop component 1 is arranged on lower frame 21 at air outlet W, i.e. stop component 1 is arranged on the air-out direction of air-conditioner, and the cross section of the wind guide strip 11 of this stop component 1 can be arbitrary shape, convex the most square, outer, indent arc etc..Wind guide strip 11 is arranged at intervals at lower frame 21 towards on the side of upper side frame 22, and the gap between two wind guide strips 11 forms a cell body, and one end of this cell body is internal towards air-duct spiral case 2, i.e. the bearing of trend of cell body and the air-out direction of air-conditioner is roughly the same.Multiple wind guide strips 11 interval arranges one stop component 1 of composition, and air fairing includes multiple stop component 1, and this stop component 1 is distributed in lower frame two ends along its length.Additionally, this stop component 1 can also uniformly be located at the lower frame 21 side towards upper side frame 22, it is not limited to the two ends of lower frame 21 length direction.
In the present embodiment, by arranging stop component 1 at air outlet W at the lower frame 21 of air fairing, one end of cell body between the wind guide strip 11 of stop component 1 is towards the inside of air-duct spiral case 2, i.e. basically identical (bearing of trend and air-out direction angle are less than preset value for the bearing of trend of this cell body and air-out direction, such as preset value is 30 degree), reduce the air-out cross section of air outlet W, the local lifting flow velocity of eluting gas, use pneumatic pressure to strengthen, thus air-out dynamic pressure is the biggest just can overcome bigger airflow reflux static pressure, thus suppress the outer gas of air outlet W to be back in air outlet W, and then inhibit pulsation surge sound, thus solve air-conditioner and the technical problem of pulsation surge sound occurs.Simultaneously, owing to stop component 1 includes that multiple interval is arranged and towards the wind guide strip 11 within air-duct spiral case 2, the air-flow of air-conditioner blowout cell body between two wind guide strips 11 flows through, when air-conditioner is in refrigerating state, owing to cold airflow cell body between wind guide strip 11 flowing through, the cold airflow that i.e. wind guide strip 11 all has temperature difference little along the both sides of air-out direction flows through, so wind guide strip 11 is little along the temperature difference of the both sides of air-out direction, thus prevent, on wind guide strip 11, condensation occurs, thus while by arranging stop component 1 suppression pulsation surge sound, also solve stop component 1, because keeping out the wind, condensation problem occurs.
In addition, with reference to Fig. 5, stop component 1 is fixing with lower frame 21 to be connected or one-body molded, i.e. stop component 1 can directly be fixedly connected on the two ends of lower frame 21 length direction, or stop component 1 structure is directly accomplished on mould, when being molded lower frame 21 in the lump by stop component 1 injection mo(u)lding, it is simple to simplify manufacturing process, improve production efficiency.
Further, with reference to Fig. 1 and Fig. 3, wind guide strip 11 is curved bars, and this wind guide strip 11 includes the line part 111 parallel with air conditioner air-out direction and the curved portions 112 being connected with this line part 111 away from tubular wine wheel 10 one end.
Curved portions 112 is one-body molded with line part 111, owing to line part 111 is consistent with air conditioner air-out direction, cell body bearing of trend between the line part 111 of two interval wind guide strips 11 is also consistent with air conditioner air-out direction, it is more beneficial for the air-conditioner stream that puffs away and enters the cell body between two wind guide strips 11, reduce the stop component 1 blocking effect to air-out air-flow；Simultaneously, between the curved portions 112 of two interval wind guide strips 11, the cell wall of cell body is arcwall face, this cell wall is that the cell body of arcwall face has good drainage to air-out air-flow, it is the mildest that the air-flow that this arcwall face cell wall makes air outlet W blow out changes direction change in flow the softest, blowout air-flow, it is to avoid abnormal sound occurs because drastically changing through air outlet W blowout air-flow velocity.
Preferably, with reference to Fig. 3, the cross-sectional width of line part 111 is less than the cross-sectional width minima of curved portions 112, owing to parallel between wind guide strip 11 and interval are arranged, the curved portions 112 of wind guide strip 11 is further away from its line part 111, the cross-sectional width of curved portions is the biggest, the become partial width of cell body line part 111 between i.e. two wind guide strips 11 is bigger, the become partial width of curved portions 112 is less, and cell body width is gradually reduced to curved portions 112 end by line part 111, between two wind guide strips 11, the inlet area of cell body is more than discharge area, during so that air-conditioner runs, the air-flow of blowout can smoothly from stop component 1 one end windward to leeward one end；And due between two wind guide strips 11 inlet area of the air-flow of cell body more than discharge area, such that it is able to promote the flow velocity flowing through wind guide strip 11 air-flow, making its dynamic pressure strengthen, air-out dynamic pressure is the biggest just can overcome bigger airflow reflux static pressure, reduces the airflow reflux of air-conditioner blowout further.
Further, with reference to Fig. 4, curved portions 112 includes windward side cambered surface A1 and leeward side cambered surface A2 being oppositely arranged, the curvature of windward side cambered surface A1 is more than the curvature of leeward side cambered surface A2, i.e. windward side cambered surface A1 of curved portions 112 becomes θ 1 away from the molded line tangent line of tubular wine wheel 10 one end with air-out direction, leeward side cambered surface A2 of same curved portions 112 becomes θ 2, and θ 1 > θ 2 away from tubular wine wheel 10 one end molded line tangent line with air-out direction, and θ 1 is in the range of 0 degree to 90 degree.When air conditioner air-out, the air-flow flowing through stop component 1 can the most smooth and easy pass through, wind is directed to leeward side cambered surface A2 of adjacent wind guide strip 11 by windward side cambered surface A1 of wind guide strip 11, under cooling situations, wind guide strip 11 both sides cold airflow flow is suitable, wind guide strip 11 both sides temperature difference is less, thus weakens even elimination wind guide strip 11 leeward side cambered surface A2 further and condensation occur.
Preferably.Wind guide strip 11 is disposed in parallel relation to one another, spacing between line part 111 is more than the spacing between curved portions 112, i.e. and by wind guide strip 11 windward side cambered surface A1 reversely doing straight line away from the end points of tubular wine wheel 10 along air-out direction, this straight line has intersection point with leeward side cambered surface A2 of this adjacent wind guide strip of wind guide strip 11 11.
At air conditioner wind outlet W during local return, owing to the spacing between line part 111 is more than the spacing between curved portions 112, i.e. relative to the air-flow of backflow, between two adjacent curved portions 112, the area of the become reflux inlet of cell body is less than the area of the become bypass outlet of cell body between corresponding two adjacent line parts 111, it is suppressed that reflux airflow enters air outlet W from stop component；Meanwhile, the air-flow that the reflux inlet that two adjacent curved portions 112 are formed enters can directly be beaten in leeward side cambered surface A2, thus in suppressing the gas backstreaming air intake vent W outside air outlet W.
Further, seeing figures.1.and.2, angle based on lower frame 21 and upper side frame 22 determines air-conditioner low regime S on this lower frame 21, and wind guide strip 11 is arranged in the S of this low regime.
Low regime S is distributed in the lower frame 21 side towards upper side frame 22 at air outlet W, and angle formed by low regime S and the lower frame 21 of air-duct spiral case 1 and upper side frame 22 is relevant, and the scope of this angle the biggest then low regime S is the biggest.Specifically, can be by probe velocimetry on lower frame 21, the particularly two ends of lower frame 21 length direction, air-out direction on detection draw low regime S (gas flow rate less than preset value be referred to as low speed), wind guide strip 11 is arranged in the S of this low regime, it is preferable that the coverage of wind guide strip 11 coverage slightly larger than low regime S, thus the air-flow of low regime S is raised speed by wind guide strip 11 comprehensively, will not reflux after being further ensured that all air-flows outflow air outlet W flowing through low regime S.
Preferably, be the eccentric positive and negative 15 degree of regions radiated of vertical line on lower frame 21 with reference to Fig. 2, low regime S, this bias vertical line be the center O of the eccentric vortex with air-conditioned wind tunnel be basic point, the vertical line made to lower frame place plane.Using this scheme, stop component 1, to flowing through the gas flow speeding best results of low regime S, eliminates or to alleviate surge phenomenon optimal.
In addition, with reference to Fig. 5, stop component 1 is fixing with lower frame 21 to be connected or one-body molded, i.e. stop component 1 can directly be fixedly connected on the two ends of lower frame 21 length direction, or stop component 1 structure is directly accomplished on mould, when being molded lower frame 21 in the lump by stop component 1 injection mo(u)lding, it is simple to simplify manufacturing process, improve production efficiency.
This utility model also proposes a kind of air-conditioner, this air-conditioner is preferably Split wall-mounted type air conditioner, with reference to Fig. 1, air-conditioner includes above-mentioned air fairing and tubular wine wheel 10, tubular wine wheel 10 is arranged in the air-duct spiral case 2 of this air fairing, and this tubular wine wheel 10 introduces the air outlet W in the air channel that external air flow is drained to the upper side frame 22 of this air-duct spiral case 2 by air-duct spiral case 2 and lower frame 21 is constituted and blows out.Owing to this air-conditioner have employed the above-mentioned whole technical schemes leading all embodiments of air fairing, therefore, at least having all beneficial effects that the technical scheme of above-mentioned air fairing embodiment is brought, this is no longer going to repeat them.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; it is every under utility model of the present utility model is conceived; utilize the equivalent structure transformation that this utility model description and accompanying drawing content are made, or directly/be indirectly used in other relevant technical fields and be included in scope of patent protection of the present utility model.
Claims (10)
1. an air fairing, it is characterized in that, this air fairing includes stop component and air-duct spiral case, the tubular wine wheel of air-conditioner it is equipped with in described air-duct spiral case, this air-duct spiral case includes lower frame and the upper side frame constituting air-conditioned wind tunnel, the air outlet that the air-flow that the tubular wine wheel of air-conditioner is introduced by described air-duct spiral case guides to air channel flows out, described stop component includes multiple wind guide strip, described wind guide strip is disposed on described lower frame at the air outlet, and between two wind guide strips, one end of cell body is towards inside described air-duct spiral case.
2. air fairing as claimed in claim 1, it is characterised in that described wind guide strip is curved bars, and this wind guide strip includes the line part parallel with air conditioner air-out direction and the curved portions being connected with this line part away from tubular wine wheel one end.
3. air fairing as claimed in claim 2, it is characterised in that the cross-sectional width of described line part is less than the cross-sectional width minima of described curved portions.
4. air fairing as claimed in claim 2, it is characterised in that described curved portions includes windward side cambered surface and the leeward side cambered surface being oppositely arranged, and the curvature of described windward side cambered surface is more than the curvature of leeward side cambered surface.
5. air fairing as claimed in claim 4, it is characterised in that described wind guide strip is disposed in parallel relation to one another, and the spacing between described line part is more than the spacing between described curved portions.
6. air fairing as claimed in claim 2, it is characterised in that angle based on described lower frame and upper side frame determines air-conditioner low regime on this lower frame, and described wind guide strip is arranged in this low regime.
7. air fairing as claimed in claim 6, it is characterized in that, described low regime is the eccentric positive and negative 15 degree of regions radiated of vertical line on described lower frame, this bias vertical line be the center of the eccentric vortex with air-conditioned wind tunnel be basic point, the vertical line made to described lower frame place plane.
8. the air fairing as described in claim 1 to 7 any one, it is characterised in that described stop component is multiple, this stop component is located at described lower frame two ends along its length.
9. the air fairing as described in claim 1 to 7 any one, it is characterised in that described stop component is fixing with described lower frame to be connected or one-body molded.
10. an air-conditioner, it is characterized in that, described air-conditioner includes the air fairing described in claim 1 to 9 any one and tubular wine wheel, described tubular wine wheel is arranged in the air-duct spiral case of this air fairing, and this tubular wine wheel introduces the air outlet blowout in the air channel that external air flow is drained to the upper side frame of this air-duct spiral case by described air-duct spiral case and lower frame is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134261.9U CN205448209U (en) | 2015-12-30 | 2015-12-30 | Air fairing and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521134261.9U CN205448209U (en) | 2015-12-30 | 2015-12-30 | Air fairing and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205448209U true CN205448209U (en) | 2016-08-10 |
Family
ID=56599553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521134261.9U Active CN205448209U (en) | 2015-12-30 | 2015-12-30 | Air fairing and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205448209U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413595A (en) * | 2018-04-09 | 2018-08-17 | 广东美的制冷设备有限公司 | Air conditioner air deflector and air conditioner indoor unit, air conditioner with it |
| CN105509280B (en) * | 2015-12-30 | 2018-09-04 | 美的集团武汉制冷设备有限公司 | Air fairing and air conditioner |
| CN108826473A (en) * | 2018-07-28 | 2018-11-16 | 宁波奥克斯电气股份有限公司 | A kind of spiral case and air-cooled ducted air conditioner |
| CN114856788A (en) * | 2021-02-03 | 2022-08-05 | 株式会社美姿把 | Fan guard and air supply device |
-
2015
- 2015-12-30 CN CN201521134261.9U patent/CN205448209U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509280B (en) * | 2015-12-30 | 2018-09-04 | 美的集团武汉制冷设备有限公司 | Air fairing and air conditioner |
| CN108413595A (en) * | 2018-04-09 | 2018-08-17 | 广东美的制冷设备有限公司 | Air conditioner air deflector and air conditioner indoor unit, air conditioner with it |
| CN108826473A (en) * | 2018-07-28 | 2018-11-16 | 宁波奥克斯电气股份有限公司 | A kind of spiral case and air-cooled ducted air conditioner |
| CN114856788A (en) * | 2021-02-03 | 2022-08-05 | 株式会社美姿把 | Fan guard and air supply device |
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