CN101836801B - Adjustable air conditioning and supplying device at seat end - Google Patents
Adjustable air conditioning and supplying device at seat end Download PDFInfo
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- CN101836801B CN101836801B CN2010101495770A CN201010149577A CN101836801B CN 101836801 B CN101836801 B CN 101836801B CN 2010101495770 A CN2010101495770 A CN 2010101495770A CN 201010149577 A CN201010149577 A CN 201010149577A CN 101836801 B CN101836801 B CN 101836801B
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Abstract
The invention discloses an adjustable air conditioning and supplying device at a seat end. The device comprises an air supplying upright post and is characterized in that: the outer diameter of the air supplying upright post is provided with a sliding block; the outer diameter above the air supplying upright post is connected with a hood through a support; the periphery of the hood is respectively connected with air flow conditioning rods through first bearings which are arranged uniformly; flexible air flow conditioning plates are fixed on the air flow conditioning rods; a conditioning bracket is connected between each air flow conditioning rod and the sliding block, wherein the conditioning brackets are connected with the air flow conditioning rods through second bearings; and the conditioning brackets are connected with the sliding block through third bearings. The air outlet of the device supplies air downwards uprightly, so that the air supply height is reduced so as to avoid blowing feeling of ankles; and the air flow of the horizontally supplied air is lower, and higher air supplying speed can be adopted, so that the quality of an air conditioning area behind a heat source is effectively improved.
Description
Technical field
The present invention relates to a kind of air conditioning and supplying device, especially a kind of adjustable air conditioning and supplying device that can be used for the terminal air-supply of seat.
Background technology
The purpose that room air is regulated is for the thermal comfort that changes indoor environment, improves air quality, improves workman person's operating efficiency and health status.Mixed ventilation and replacement aeration are maximum air conditioning modes of using at present.The drafting efficiency of mixed ventilation is lower than 50%, and energy consumption is bigger, and the air of arrival human body working region is owing to the blending effect makes quality variation.The replacement aeration that is controlled to be power with buoyancy drafting efficiency in theory is higher than 50%; Because this draft type is directly sent fresh air into the workspace; Form one deck at the place, ground and have air section certain altitude, that form by new wind fully; Cry " air lake " again, thereby improved the air quality of workspace.
But traditional replacement aeration does not produce blowing feeling in order to guarantee the workspace, must strict controlled wind speed.It requires air supply velocity less than 0.5m/s (industry) or 0.2～0.25m/s (civilian), and more little good more.Simultaneously, after air-flow runs into stopping of thermal source, might can't arrive some zone of thermal source back, this mainly is because the imbalance between hot buoyancy lift and the momentum causes.Therefore replacement aeration shows relatively poor efficient in reality, and is especially obvious when this imbalance is used in the winter time.These shortcomings of replacement aeration need to be resolved hurrily.
Occurred some ventilation end equipments in recent years, like Chinese patent, publication number is the air-supply arrangement of 2877449 disclosed a kind of seats.Chinese patent for another example, publication number is 2596866 disclosed a kind of seat air supply air diffusers that have voltage balancer.Their adopt be air outlet with horizontal direction to around air-supply; Nearer with human body, and the ankle position of human body is relatively one of sensitive part of human body, in order to prevent blowing feeling; Must be air supply velocity control lower, therefore treatable maximum cold thermic load is limited.Simultaneously lower air supply velocity makes that the air-supply momentum is less, thereby makes air supplying distance shorter, and relatively poor to the air conditioning effect at thermal source rear portion.
Summary of the invention
The objective of the invention is to; A kind of adjustable air conditioning and supplying device at seat end is provided, and this device forms the air-supply of downward adjustable-angle through regulating the folding of gas flow adjusting flange; Can improve the air-supply momentum; And the ankle position is not produced blowing feeling, effectively overcome the less drawback of traditional Chinese chair placement ventilation device air supply velocity, thereby well solved the contradiction between air supply velocity and the room load; Simultaneously, increased the comfortableness of air-supply through the position of regulating its gas flow adjusting flange.
To achieve these goals, the present invention has adopted following technical solution:
A kind of adjustable air conditioning and supplying device at seat end comprises the air-supply column, and the external diameter of described air-supply column is provided with slide block; On the external diameter above the air-supply column, blast cap is arranged through support and connection; The outer of blast cap evenly is provided with clutch shaft bearing, and clutch shaft bearing connects the gas flow modulation bar, is fixed with flexible gas flow adjusting flange on the gas flow modulation bar; Be connected between gas flow modulation bar and the slide block and regulate support; Wherein, regulate between support and the gas flow modulation bar and be connected, be connected by the 3rd bearing between adjusting support and the slide block by second bearing.
The present invention also comprises following technical characterictic:
The rounded cap shape of described blast cap.
Described gas flow modulation bar has a plurality of.
Described gas flow modulation bar is connected to form umbrella through flexible gas flow adjusting flange.
The cross section of described air-supply column is circle or polygon.
Adjustable air conditioning and supplying device at seat end of the present invention, the technique effect that is brought is following:
1, after air outlet employing air-supply straight down, air arrive ground along the air-supply column outside, to diffusion all around, effectively reduced level air-supply height, avoided ankle position blowing feeling along ground;
2, because level of the present invention air-supply air-flow is lower; Therefore can take the air supply velocity higher than traditional Chinese chair air-supply arrangement; The air-supply momentum is replaced air supply mode much larger than tradition, thereby makes air-supply can reach larger distance, and effectively raises the air conditioning zone quality at thermal source rear;
3, through the size of the angle between regulating in gas flow adjusting flange and the air-supply column, the height in the air lake that forms has increased its comfortableness during the air-supply of scalable air-supply arrangement.
Description of drawings
Fig. 1 is a kind of air-supply arrangement figure of traditional Chinese chair;
Fig. 2 is the seat air supply air diffuser figure that a kind of tradition has voltage balancer;
Fig. 3 is an adjustable air conditioning and supplying device at seat end structural representation of the present invention;
Fig. 4 is a generalized section of the present invention.Wherein, Fig. 4 (a) is the A-A section; Fig. 4 (b) is the B-B section; Fig. 4 (c) is the C-C section;
Fig. 5 is an air-flow streamline sketch map.Wherein, I representes perpendicular wall adhesion zone, and II representes impingement region, and III representes the air lake region, and b expresses air port width, U
mExpression jet axis speed.
Fig. 6 (a) is b=10mm speed cloud atlas, motion pattern and polar plot; Fig. 6 (b) is b=5mm speed cloud atlas, motion pattern and polar plot;
Fig. 7 (a) is b=5mm, 10mm, the hodograph of y=50mm, 100mm; Fig. 7 (b) is (U/U
0) with (x/b) dimensionless graph of a relation.
Fig. 8 (a) is U
0=0.4m/s flow field original image; Fig. 8 (b) is U
0=0.4m/s speed cloud atlas, motion pattern and polar plot.
Fig. 9 (a) is U
0=0.6m/s flow field original image; Fig. 9 (b) is U
0=0.6m/s speed cloud atlas, motion pattern and polar plot.
Figure 10 (a) is U
0=0.8m/s flow field original image; 10 (b) are U
0=0.8m/s speed cloud atlas, motion pattern and polar plot.
Figure 11 is b=10mm, y=20mm speed and distance relation figure.
Figure 12 is cylinder vertical wall attaching jet and replacement aeration and impacting jet graph of a relation.12 (a) are y=0.05m; Figure 12 (b) is y=0.1m.
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description.
The specific embodiment
Referring to Fig. 3 and Fig. 4, a kind of adjustable air conditioning and supplying device at seat end comprises air-supply column 7, and the cross section of air-supply column 7 is circle or polygon; The external diameter of air-supply column 7 is provided with slide block 6; On the external diameter above the air-supply column 7, be connected with blast cap 1 through supporting 2; Blast cap 1 rounded cap shape, the outer of blast cap 1 connects gas flow modulation bar 4 respectively through the clutch shaft bearing 3 of even setting, and gas flow modulation bar 4 has a plurality of; Be fixed with flexible gas flow adjusting flange 8 on the gas flow modulation bar 4, gas flow modulation bar 4 is connected to form umbrella through flexible gas flow adjusting flange 8; Be connected between gas flow modulation bar 4 and the slide block 6 and regulate support 5, wherein, regulate between support 5 and the gas flow modulation bar 4 and be connected, be connected by the 3rd bearing 10 between adjusting support 5 and the slide block 6 by second bearing 9.
In the practical application; Slide block mechanism 6 can move up and down in the outside of air-supply column 7; Gas flow adjusting flange 4 can be that the center of circle swings up and down with bearing 3 under the drive of regulating support 5; Therefore the angle of gas flow adjusting flange 4 and air-supply column 7 can be set as required, that is to say the gas angle of flare is provided with.
Gas is got into by the bottom of air-supply column 7, and blast cap 1 back in airflow strikes top is reverse to flow downward along air-supply column 7 outsides, and after the gas angle of flare that flows downward through 4 pairs of gas flow adjusting flanges was regulated, air flow direction ground also formed the air lake on ground.
Embodiment 1:
The internal diameter of air-supply column 7 is 30mm, and external diameter is 40mm, long 360mm.Blast cap 1 internal diameter is 60mm, and the air outlet width b of this device is 10mm, and blast cap 1 is placed in air-supply 10mm place, column 7 top, and air outlet height h is 210mm; Air supply velocity U
0Be respectively 1.50m/s, 1.25m/s, 1.00m/s, 0.80m/s, 0.60m/s and 0.40m/s; The air-supply of employing isothermal, wind pushing temperature t is 21 ℃, environment temperature t
∞It is 21 ℃.
Embodiment 2:
Air-supply column 7 internal diameters are 30mm, and external diameter is 40mm, long 360mm, and blast cap 1 internal diameter is 50mm, and promptly the air outlet width b of this device is 5mm, and blast cap 1 is placed in air-supply 10mm place, column 7 top, and air outlet height h is 210mm; Jet distribution speed U
0Be respectively 3.00m/s, 2.50m/s, 2.00m/s and 1.60m/s; The air-supply of employing isothermal, wind pushing temperature t is 21 ℃, environment temperature t
∞It is 21 ℃.
Below adopt 2DPIV that the cylinder vertical wall attaching jet air vent mode air current composition flow field that the circular ring type air outlet forms is studied.
One, to the experiment test of embodiment 1 and embodiment 2
1, experiment purpose
Test device of the present invention under jet distribution speed and air outlet change in size situation, the characteristic of the cylinder vertical wall attaching jet air velocity distribution that circular ring type air-supply air port forms.
2, experimental provision
It is the lucite processing of 5mm that experiment material adopts thickness, and the plenum chamber specification is 1000mm * 300mm * 200mm.Air-supply column 7 stands on the plenum chamber top.Adopt between blast cap 1 and the air-supply column 74 mutually at an angle of 90 screws fix, in order to guarantee that blast cap 1 inwall and air-supply column 7 outer walls are parallel to each other and each air port consistent size radially.Before pressure fan, be provided with the aerosol producer and the blending bin of trace particle smog that produce trace particle, guarantee to send into the uniformity of the trace particle concentration in the experimental model.
3, testing scheme
Adopt 2DPIV that the cylinder vertical wall attaching jet air vent mode air current composition flow field that the circular ring type air outlet forms is studied.According to Rajaratnam N under the certain situation of jet size and muzzle velocity; With the point of impingement is the center of circle; The identical conclusion of diverse location place speed of same radius only needs the distribution of research speed along some directions, just can know the VELOCITY DISTRIBUTION of speed along other directions.Therefore, (coverage: x gets 10mm～320mm, and y gets the flow field of 12mm～170mm) and tests, to represent each radial direction vertical plane air velocity distribution of whole experimental model along some vertical planes of radial direction to choose cylinder model.Air supply velocity is through volume damper control, and the air outlet wind speed is measured through the hot line hot film anemometer, and its certainty of measurement is 0.01m/s.Because laser radiation can cause that on the experimental model surface wall is reflective, has reduced the signal to noise ratio of image, and is particularly remarkable when in air, experimentizing.Therefore, in order to reduce the reflective influence that the near wall region territory is taken of wall, blacking is carried out on the model part surface handled.Adopt the hot line hot film anemometer that air supply velocity is measured in the experimentation, its certainty of measurement is 0.01m/s.Each symbolic significance is seen table 1.
Table 1
| Symbol | Meaning | Symbol | Meaning |
| U | Coordinate is (x, the air supply velocity of y) locating (m/s) | t | The jet distribution temperature (℃) |
| U 0 | Jet distribution speed (m/s) | t ∞ | Environment temperature (℃) |
| U m | Jet axis speed (m/s) | b | Air outlet width (mm) |
| x 0.5 | Flow velocity equals 0.5U mThe abscissa (mm) at place | y 0.5 | Flow velocity equals 0.5U mThe ordinate (mm) at place |
| h | Air outlet is apart from the height (mm) of horizontal plane | y 1 | Apart from the vertical distance of air outlet, be h-y, (mm) here |
Two, experimental result and analysis
1, airflow pattern analysis
Referring to Fig. 5, the flow field that the perpendicular wall of cylinder attaches can roughly be divided into following three zones.
Perpendicular wall adhesion zone I: jet axis is attached at the perpendicular wall of air-supply column external diameter owing to the influence of Coach effect.Fluid is injected in the static situation, and inner boundary receives the effect of solid wall surface frictional resistance to form the wall boundary layer.Outside with have the discontinuous discontinuity surface of speed on every side between the stationary fluid, form velocity gradient subsequently, under the effect of shear stress, produce vortex, vortex entrainments surrounding fluid entering jet, generation turbulent fluctuation.Because the lateral transport of momentum, the fluid that entrainments entering obtains momentum and mobile forward with the fluid of original jet, and fluid originally then loses momentum and the speed reduction.It is bigger to be embodied in this regional top main flow partial velocity, and the jet flow section diffusion is not obvious, owing to entrainment and the blending effect, jet flow section constantly enlarges along jet direction, and flow velocity then constantly reduces, and flow is along Cheng Zengjia.
Impingement region II: flow owing to the effect that receives horizontal plane in this district, so the static pressure increase, projecting static pressure, and at perpendicular wall of cylinder and horizontal plane junction formation stagnation point, it is maximum that pressure reaches.Streamline is crooked under the effect of pressure gradient, transfers into parallel attached jet with horizontal plane by flowing downward and moves.
Air lake region III: the lower limits of fluid forms the wall boundary layer owing to receiving the horizontal wall surface rubbing action.The fluid upper bound is constantly entrainmented surrounding fluid and is produced blending.
2, compare in the vertical wall attaching jet flow field under the different embodiment
Referring to Fig. 6 (a), the vertical wall attaching jet flow-field test result of embodiment 1 is shown: along with diminishing of air supply velocity, the influence that whole flow field receives the air port also weakens gradually, in captured zone by not having the whirlpool to the whirlpool occurring.Jet distribution speed U
0During for 1m/s, 0.8m/s, 0.6m/s and 0.4m/s, captured scope all has the whirlpool to occur, along with jet distribution speed U
0Reduce, the size and the intensity in whirlpool diminish gradually.Under four kinds of wind speed, the center in whirlpool is more stable, and horizontal direction is between 200～250mm, and vertical direction is between 50～100mm; Jet distribution speed U
0During for 1.5m/s and 1.25m/s, captured zone does not have the whirlpool to occur.Based on the free turbulent jet fluid hypothesis that flows, that is: jet can only flow in narrow space, promptly can only be closed, has closed streamline.Add up to and we can say, the eddy current of closed circulation all can appear in the finite disturbance of all continuous-flow media.The whirlpool exists in the time of can thinking these two kinds of air supply velocities, but appears in certain position of taking outside the section.
Referring to Fig. 6 (b), the vertical wall attaching jet flow-field test result of embodiment 2 is shown: at jet distribution speed U
0During for 3m/s, 2.5m/s, 2m/s and four kinds of wind speed of 1.6m/s, streamline trend is roughly the same, the whirlpool all do not occur in captured zone.Along with reducing of wind speed, horizontal adhesion zone end spreads apparition gradually.
The human body ankle is that human body compares one of sensitive part to air supply velocity and temperature, and 0.05～0.1m place can be thought far from ground in its position.The height in " air lake " is very low under embodiment 1 and 2 two kinds of situation of embodiment, basically all below 0.05m.At air outlet width b is under 10mm and two kinds of situation of 5mm, and near the air the perpendicular wall zone of cylinder receives the effect of entrainmenting of penetrating air-flow and moves downward, and forms the mixed zone, and the effect of entrainmenting of air-supply is smaller to the influence of workspace.
3,50mm and the velocity analysis of 100mm place apart from ground among the different embodiment
The human body ankle is that human body compares one of sensitive part to air supply velocity and temperature, and 0.05m～0.1m place can be thought in its position far from ground.Replacement aeration is if air supply velocity is too big, and foot has blowing feeling, brings comfortableness problem, and general proposed standard is not more than 0.15m/s when being 20 ℃ of wind pushing temperatures, is not more than 0.2m/s in the time of 24 ℃.From the curve map 7 (a) of the different air supply velocities of two kinds of following two kinds of air outlets of embodiment and distance, can find out under the situation of air-supply wind speed greater than replacement aeration (less than 0.5m/s), can satisfy the comfortableness requirement of ankle fully.Therefore the cylinder vertical wall attaching jet can guarantee to blow air-flow under than the bigger momentum situation of displacement air-supply to around diffusion; Thereby make the air-supply air-flow reach the position more farther than replacement aeration; Overcome the shortcoming that replacement aeration can't satisfy thermal source rear area air quality, therefore can be applied to building than large span.In addition, can find out that from Fig. 7 (a) air outlet width b is littler than the velocity perturbation of 10mm, more stable when being 5mm.Explain that air outlet width b is more little, disturbance to external world is also more little.To same air outlet width, the velocity variations trend that y=50mm and y=100mm highly locate is basic identical.
Velocity variations situation from Fig. 7 (b) can obtain, and at b=10mm, the velocity amplitude increase during y=50mm appears at the x=200mm place; Velocity amplitude increase during y=100mm appears at the x=250mm place.The increase situation that speed occurs in reducing process is because the height of the external edge interlayer of wall-attached jet increases with distance, finally has influence on the result of the speed that experimental analysis highly locates.For the velocity image of b=5mm, velocity amplitude then do not occur and reduce the trend that afterwards increases earlier, this is because the outer boundary layer thickness of horizontal wall surface increases result more slowly.Therefore can think that the width of air outlet mainly shows on the horizontal range the speed influence highly of ankle place.The air outlet width is big more, and it is fast more that horizontal wall surface outer boundary layer thickness increases, and vice versa.
Shown in Fig. 7 (b), for y=50mm and y=100mm highly locate curve, (U/U
0) along with (x/b) decays always, but curve all shows identical trend, and the curve downward trend is descending, is tending towards smooth gradually.
4, the 20mm place velocity analysis apart from ground under different air supply velocities during b=10mm
Fig. 8 (a), Fig. 9 (a) and Figure 10 (a) are among the embodiment 1, air outlet width b=10mm, jet distribution speed U
0Be 0.4m/s, the shooting flow field original image when 0.6m/s and 0.8m/s, can find out uniformly dispersing the air of track particle demonstrate stratiform to around diffusion; Can find out that from the processing image (Fig. 8 (b), Fig. 9 (b), Figure 10 (b)) of above three kinds of jet distribution speed air-flow begins to be radioactivity to evenly diffusion all around from cylinder on horizontal plane.Along with jet distribution speed U
0Increase, it is obvious more that the movement tendency in flow field becomes.
Work as b=10mm, under three kinds of jet distribution speed during y=20mm, X gets the velocity amplitude of 39 points from 0～230mm, its speed with see Figure 11 apart from the distance relation of cylinder.Shown in figure 11, after the air-flow of air supply velocity was run into horizontal plane straight down along wall greatly, momentum was sharply decayed and to diffusion all around, is erected wall place far away but still have enough momentum to reach distance.Because speed phase specific damping is bigger, after therefore bigger vertical air-supply air-flow arrival ground is transformed into the air-flow of horizontal direction, can satisfies the ankle position and can not produce " blowing feeling ".To b=10mm, during y=20mm, the attenuation degree of wind speed, the i.e. maximum wind velocity at horizontal plane place and U
0Ratio, U
0During=0.8m/s, be 23%; U
0During=0.6m/s, be 20%; U
0During=0.4m/s, be 16%.It can also be seen that U from Figure 10
0=0.8m/s and U
0=0.6m/s is approaching at horizontal wall attachment jet section flow speed value; It is thus clear that for the cylinder vertical wall attaching jet; Increase along with flow velocity; The part flow velocity increase that is mainly used in adjusting room and human comfort zone is less, and it is more stable to explain that the main level of bringing into play adjusting thermal comfort for room property attaches section air-flow, and flow field characteristic is very favourable.
The wind speed of workspace is a key factor that influences human thermal comfort property.The regulation and stipulation of China: comfort air conditioning system indoor air velocity in summer should be greater than 0.3m/s.Because the air supply velocity decay is very fast, therefore can guarantee that under the wind speed that satisfies the noise requirement the most regional wind speed of workspace is lower than 0.3m/s, does not produce blowing feeling.
5, the comparison of cylinder vertical wall attaching jet and replacement aeration and impacting jet
The cylinder vertical wall attaching jet has combined the advantage of replacement aeration and impacting jet, and air supply velocity is higher than replacement aeration, and the air port is installed more convenient, can be provided with at seat or object support structure place, can be as required in indoor flexible arrangement.Referring to Figure 12 (a) and Figure 12 (b), six kinds of U when selecting b=10mm for use
0Speed dimensionless averaged curve at y=0.05m and y=0.1m place compares with the speed dimensionless curve that adopts replacement aeration and impacting jet respectively.Wherein the analogue data of replacement aeration and impacting jet is taken from the result of study of Dong Lei (Dong Lei: " discussion that the impacting jet ventilating system is used ") in office type building.
Obtain as drawing a conclusion from the dimensionless curve of replacement aeration, impacting jet and the cylinder vertical wall attaching jet of y=0.05m and y=0.1m: first; Two kinds of air supply modes of cylinder vertical wall attaching jet and impacting jet all are in short distance, to rise to the speed maximum; Replacement aeration then is slowly to rise to maximum long apart from the lining; Therefore, replacement aeration is worst to preventing that human body ankle place from producing " blowing feeling ", and is on the other side; The cylinder vertical wall attaching jet reaches maximum speed value with the rate of rise of maximum, thereby has farthest reduced the possibility that produces the uncomfortable property of human body.Second; The velocity attenuation of cylinder vertical wall attaching jet is maximum; When therefore adopting the air supply mode of cylinder vertical wall attaching jet; Can under square one, adopt bigger air supply velocity, thereby can under the situation of identical refrigeration duty, reduce supply air temperature difference, and this also is favourable to the appearance that prevents " blowing feeling "; Show among the figure that simultaneously " air lake " that the cylinder vertical wall attaching jet forms is the thinnest under three kinds of air supply modes.The 3rd; Replacement aeration and impacting jet air supply mode are big in the speed maximum separately that y=0.1m highly locates all to reach than y=0.05m place; Wherein the fluctuation of the maximum speed value of impacting jet is maximum; The velocity variations of the air supply mode of cylinder vertical wall attaching jet at the differing heights place then shows very stable; This is comparatively favourable for the air velocity distribution situation in the control room, thereby can make design conditions and actual condition comparatively approaching, promptly obtains comparatively approaching equalization point from energy-conservation with the design actual condition angle.
In sum, cylinder vertical wall attaching jet air supply mode is the most useful in three kinds of modes, and the impacting jet mode is taken second place, and the replacement aeration mode is the poorest.Cylinder vertical wall attaching jet air supply mode is a kind of rising air supply mode.
Claims (5)
1. adjustable air conditioning and supplying device at seat end; Comprise air-supply column (7), it is characterized in that the external diameter of described air-supply column (7) is provided with slide block (6); On the external diameter of air-supply column (7) top, be connected with blast cap (1) through supporting (2); On the outer of blast cap (1), evenly be provided with clutch shaft bearing (3), clutch shaft bearing (3) is connected with gas flow modulation bar (4), is fixed with flexible gas flow adjusting flange (8) on the gas flow modulation bar (4); Be connected with between gas flow modulation bar (4) and the slide block (6) and regulate support (5); Wherein, regulate between support (5) and the gas flow modulation bar (4) and be connected, be connected by the 3rd bearing (10) between adjusting support (5) and the slide block (6) by second bearing (9).
2. adjustable air conditioning and supplying device at seat end as claimed in claim 1 is characterized in that, the rounded cap shape of described blast cap (1).
3. adjustable air conditioning and supplying device at seat end as claimed in claim 1 is characterized in that, described gas flow modulation bar (4) has a plurality of.
4. like claim 1 or 3 described adjustable air conditioning and supplying device at seat end, it is characterized in that described gas flow modulation bar (4) is connected to form umbrella through flexible gas flow adjusting flange (8).
5. adjustable air conditioning and supplying device at seat end as claimed in claim 1 is characterized in that, the cross section of described air-supply column (7) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101495770A CN101836801B (en) | 2010-04-16 | 2010-04-16 | Adjustable air conditioning and supplying device at seat end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101495770A CN101836801B (en) | 2010-04-16 | 2010-04-16 | Adjustable air conditioning and supplying device at seat end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101836801A CN101836801A (en) | 2010-09-22 |
| CN101836801B true CN101836801B (en) | 2012-05-23 |
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ID=42740673
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|---|---|---|---|
| CN2010101495770A Expired - Fee Related CN101836801B (en) | 2010-04-16 | 2010-04-16 | Adjustable air conditioning and supplying device at seat end |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106726320A (en) * | 2016-12-14 | 2017-05-31 | 中国人民解放军第三军医大学第三附属医院 | Knee surgery support frame |
| CN107280312A (en) * | 2017-08-10 | 2017-10-24 | 上海永乐座椅有限公司 | A kind of seat air conditioner air-supply arrangement |
| CN113349067B (en) * | 2021-07-08 | 2022-09-09 | 上海市农业科学院 | Constant-temperature ventilation device for cage-rearing chicken house |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581492A (en) * | 2008-05-16 | 2009-11-18 | 北京恩湾科技有限公司 | Air diffuser |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02219943A (en) * | 1989-02-20 | 1990-09-03 | Matsushita Seiko Co Ltd | Diffuser for air conditioner |
| JPH0712397A (en) * | 1993-06-25 | 1995-01-17 | Matsushita Seiko Co Ltd | Diffuser grille for underfloor air conditioning |
| NZ539185A (en) * | 2005-03-31 | 2007-08-31 | Holyoake Ind Ltd | Air flow control device, typically a diffuser, with primary and secondary valves to control flow through respective primary and secondary outlets, with primary valve as overlaid movable filters |
-
2010
- 2010-04-16 CN CN2010101495770A patent/CN101836801B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581492A (en) * | 2008-05-16 | 2009-11-18 | 北京恩湾科技有限公司 | Air diffuser |
Non-Patent Citations (2)
| Title |
|---|
| JP平2-219943A 1990.09.03 |
| JP特开平7-12397A 1995.01.17 |
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