CN201369893Y - Air outlet intelligent water-proof dust-proof structure - Google Patents
Air outlet intelligent water-proof dust-proof structure Download PDFInfo
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- CN201369893Y CN201369893Y CNU2008201239185U CN200820123918U CN201369893Y CN 201369893 Y CN201369893 Y CN 201369893Y CN U2008201239185 U CNU2008201239185 U CN U2008201239185U CN 200820123918 U CN200820123918 U CN 200820123918U CN 201369893 Y CN201369893 Y CN 201369893Y
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Abstract
The utility model relates to an air outlet intelligent water-proof dust-proof structure, which comprises a protective cover which is arranged outside an air outlet on a device outer shell, and at least two foldable corrugated plates which are respectively arranged on the left side and the right side of the protective cover, wherein each foldable corrugated plate is connected between the protective cover and the air outlet, and the foldable corrugated plates and the protective cover from an integral structure. The air outlet intelligent water-proof dust-proof structure can further comprise a control unit, a sensing unit, a push button unit and a master machine state unit. The air outlet intelligent water-proof dust-proof structure has good protective effect, low wind resistance, small noise and small influence on heat dissipation, can automatically control the opening and closing of the protective cover according to the using environment state for coping with burst events, does not need excessive users for participation, has compact structure, can be applied in various electronic devices, and has easy realization, simple technique and low manufacture cost.
Description
Technical field
The utility model relates to a kind of waterproof and dustproof structure of air outlet, particularly relates to a kind of intelligent waterproof and dustproof structure of air outlet of electronic equipment.
Background technology
Nowadays, electronic equipment is universal day by day in people's life.General electronic equipment all has the air outlet that is used to dispel the heat, and the air outlet feed liquor is to cause electronic equipment, as the main cause of notebook computer feed liquor short circuit, and causes that the reason of air outlet feed liquor mainly contains two kinds: unexpected water-sprinkling or drench with rain.In addition, air outlet also is the main entrance of dust in the electronic equipments such as notebook computer and projecting apparatus, dustproof problem never is well solved, especially for a long time be placed in many dusts environment, or in moving process, dust is very easy to enter system from inlet and outlet, influence heat radiation and electric property.For the water proof and dust proof of air outlet, a lot of methods have been arranged, but mostly be not suitable in the electronic product of portable or projecting apparatus class, especially be not suitable in commercial notebook, using.
Simply introduce the solution of existing electronic equipment below for the water proof and dust proof problem of air outlet.
Existing solution 1: louvre type and labyrinth type
As shown in Figure 1, a kind of high-effective water-proof aeration structure relates to a kind of waterproof ventilation and heat structure that is applied in the outdoor communication equipment, and this structure also can be applied to all outdoor electric power equipment.Be achieved by the following technical solution: the linking of staggering of the S-type anti-wiper blade in cross section 8 head and the tail, and the two ends of anti-wiper blade 8 are fixed on the left and right side plate 6,9, the upper and lower crossbeam 5,7 that has L type water fender is fixedlyed connected with left and right side plate 6,9, forms a complete waterproof unit together.
This scenario-frame is simple, and waterproof and performance of ventilating are good, is a kind of ventilation and heat structure that big low capacity communication equipment ventilates that is fit to.But the shortcoming of this scheme is: waterproof effect is limited, if water velocity is bigger, still might passes blinds and enter system; Air-out is young, and windage is big, and noise is big, is more common in outdoor large equipment, as the case etc. of communicating by letter, and not too suitable being applied on the mancarried electronic aid; This scheme has only provided the waterproofing design of electronic equipment, can't realize preventing dust.
Existing solution 2: no fan design, drip-proof fan design
Those skilled in the art have also proposed no fan design and drip-proof fan designs to solve waterproof and dustproof problem, but described scheme has following shortcoming: though no fan design good water-proof effect, but heat-sinking capability is poor, can't satisfy the design needs, be suitable for high-grade waterproof, be more common in low-power consumption portable equipment and ruggedized equipment; The drip-proof fan life-span of drip-proof fan design is short, and complete machine still needs sealing, is suitable for high-grade waterproof, is more common in ruggedized electronics equipment.
This shows that above-mentioned existing air outlet intelligence waterproof and dustproof structure obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that air outlet intelligence waterproof and dustproof structure exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of air outlet intelligence waterproof and dustproof structure of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
The documents tabulation of existing scheme:
1: the patent No. 00228466.9,
Summary of the invention
The purpose of this utility model is, a kind of air outlet intelligence waterproof and dustproof structure of new structure is provided, and technical problem to be solved is to make its effectively water proof and dust proof, and less to the heat radiation influence, thereby is suitable for practicality more.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to the air outlet intelligence waterproof and dustproof structure that the utility model proposes, it comprises: protective cover: be arranged on the air outlet outside on the device housings; At least two collapsible corrugated platings: be separately positioned on the left and right sides of described protective cover, the collapsible corrugated plating of each piece all is connected between described protective cover and the air outlet, described collapsible corrugated plating and the described protective cover structure that forms as one.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, wherein said collapsible corrugated plating and protective cover are formed in one.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, wherein said collapsible corrugated plating and protective cover are the glue downlink connection.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, wherein said collapsible corrugated plating adopts the mode of screw threads for fastening to be connected with protective cover.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, the top edge of wherein said protective cover is fixedlyed connected with described device housings.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, wherein also comprise the protective cover rotating shaft that is positioned at the protective cover top edge, described protective cover rotating shaft is arranged on an end of a shielding support, and the other end of described shielding support is fixed on the described device housings.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, wherein said shielding support is two poles.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure wherein also comprises a control unit, and described control unit drives a motor folding of protective cover is controlled.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, wherein said motor drives the protective cover gear pole that is engaged with by motor gear, thereby described pole is stretched out to the described air outlet outside outwards prop described protective cover, thereby perhaps close described protective cover to the inboard withdrawal of described air outlet.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, wherein also comprise a sensing unit that is arranged on the described protective cover, described sensing unit links to each other with described control unit, and sends shutdown signal according to the environmental information that is sensed to described control unit.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, wherein said sensing unit is liquid sensor or humidity sensor.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, the detection bodies of wherein said sensing unit is embedded among the described protective cover.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, the detection bodies of wherein said sensing unit is installed in the top outside of described protective cover.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure wherein also comprises a pushbutton unit, and described pushbutton unit links to each other with described control unit, and sends folding condition change signal according to the action of pressing in the external world to described control unit.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, wherein the button that links to each other with described pushbutton unit is arranged on the described device housings.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure wherein also comprises a Host Status unit, and described Host Status unit links to each other with described control unit, and sends corresponding folding signal according to the on-off state of described equipment to described control unit.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, wherein said protective cover is made of the protection body more than.
Preferably, aforesaid air outlet intelligence waterproof and dustproof structure, wherein said polylith protection body is set to overlap.
The utility model compared with prior art has tangible advantage and beneficial effect.
This case designed in the air outlet outside can folding protective cover.Sensing unit, pushbutton unit pass through different signals with the Host Status unit, by the control unit CD-ROM drive motor folding of protective cover are controlled; When sensing unit detects liquid or humidity and surpasses preset value, send signal and give control unit, control unit sends to motor and closes the protective cover signal; When pressing the button the unit, control unit sends the signal that changes current protective cover folding condition, if promptly protective cover is in open mode, then sends out code; If be in closed condition, then send OPEN; And the Host Status unit only sends signal to control unit when start and shutdown, is opening signal during start, is shutdown signal during shutdown, receives and handle coherent signal by control unit, notice motor complete operation.
By technique scheme, the utility model air outlet intelligence waterproof and dustproof structure can reach suitable technological progress and practicality, and has the extensive value on the industry, and it has following advantage at least:
1, protection effect is good.When protective cover is opened, can keep out the water-sprinkling (this is the water-sprinkling and the common situation of drenching with rain) of upward oblique and horizontal direction; Then can resist the water-sprinkling in each orientation after closing, and fundamentally eliminate dust enters system from air outlet possibility.
2, control automatically can be coped with contingencies.Detect the environment for use state by sniffer, thereby the folding of control protective cover, therefore when running into paroxysmal unexpected water-sprinkling, protective cover can be closed automatically, avoided the high-velocity flow of blinds protection mode to protect Problem of Failure (carried out simulated experiment, effect is fine) down.
When 3, protective cover was opened, windage was much smaller than existing scheme, avoided that the air-out of traditional protection mode is young, windage is big, noise is big, to the big drawback of heat radiation influence.(, with the obvious advantage) through simulation calculation
4, according to the user mode of abominable situation of external environment and computer, finish the folding control of protective cover automatically, do not need the too much participation of user can realize protection, be very suitable for the unattended operation system.Both guarantee the safety of system, can free to the user again, done other prior work.
5, both can work automatically, can manually participate in control again, strengthen the control flexibility ratio.When start, if external environment is good, then protective cover is opened automatically; When shutdown, protective cover is closed automatically.In addition, also design has a control button, is used for manually changing the folding condition of protective cover.
6, compact conformation, can be applied in ultra-thin notebook computer and reinforcing, the semi-toughened notebook, in addition, make improvements in the power module that---only need hold in the design of power supply air outlet place the recess space of protective cover, other are similar with the mode that is applied in the notes---also can be applied to desktop computer, server slightly and on the inlet and outlet of the air outlet of projecting apparatus and many dusts area electronic equipment.。
7, be easy to realize that do not influence the traditional heat-dissipating scheme, and technology is simple, cost is low.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the structural representation of a kind of high-effective water-proof aeration structure of prior art.
Fig. 2 is the overall structure schematic diagram of the execution mode one of air outlet intelligence waterproof and dustproof structure of the present utility model.
Fig. 3 is the control principle figure of the waterproof and dustproof structure of Fig. 2.
Fig. 4 is the structural representation of the waterproof and dustproof structure of Fig. 2 at normal operating condition.
Fig. 5 is the waterproof and dustproof structure of Fig. 2 is closed the back state at protective cover a structural representation.
Fig. 6 is the structural representation of the execution mode two of air outlet intelligence waterproof and dustproof structure of the present utility model.
Fig. 7 is the structural representation of the execution mode three of air outlet intelligence waterproof and dustproof structure of the present utility model.
Fig. 8 is the air outlet of common air outlet, Fig. 2, the blast curve chart of these three kinds of schemes of blinds air outlet.
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of the air outlet that the utility model proposes intelligence waterproof and dustproof structure, structure, feature and effect thereof, describe in detail as after.
As Fig. 2, shown in Figure 3, the air outlet of the utility model one embodiment intelligence waterproof and dustproof structure mainly is made up of protective cover 1, sensing unit 2 and control unit 3.Protective cover 1 air outlet 4 outsides of design on device housings 8 that can folding, for example can be as illustrated in fig. 2 on top edge fixedly connected with described shell 8, and the left and right sides of protective cover 1 and air outlet 4 junctions are the collapsible corrugated plating 5 of the similar folding fan of shape.Collapsible corrugated plating 5 and protective cover 1 can be connected or the mode of screw threads for fastening connects as one by bonded adhesives, and be perhaps one-body molded during fabrication, to block liquid and the dust from air outlet 4 outsides.When protective cover 1 was opened, corrugated plating 5 was that outwards stretch a bottom with the top edge of protective cover 1; And when protective cover 1 was closed, corrugated plating 5 was folding.Described waterproof and dustproof structure also comprises a motor 6, and motor gear 61 drives protective cover gear pole 7, realizes opening or closing of protective cover 1.
As shown in Figure 3, sensing unit 2 links to each other with control unit 3, is used to detect the external environment situation, with the folding of control protective cover 1.Sensing unit 2 can be a liquid sensor, also can be humidity sensor.When liquid sensor detects liquid or humidity sensor testing humidity and surpasses preset value, send shutdown signal and give control unit 3.The detection bodies of sensing unit 2 can be embedded or be installed on the protective cover 1.
See also the user mode schematic diagram of the air outlet intelligence waterproof and dustproof structure of Fig. 4 and Fig. 5, and please in conjunction with the control principle figure that consults Fig. 3.During normal the use, booting computer, control unit 3 receives start signal from Host Status unit 9, and according to these signal controlling motor 6 rotations, motor gear 61 drives the protective cover gear pole 7 that is engaged with and stretches out to air outlet 4 outsides, thereby protective cover 1 is opened automatically, as shown in Figure 4.Shut down of computer, control unit 3 receives shutdown signal from Host Status unit 9, and rotates according to this signal controlling motor 6, and the protective cover gear pole 7 that motor gear 61 anti-phase drives are engaged with is withdrawn to air outlet 4 inboards, thereby protective cover 1 is closed automatically; When water sprinkles to protective cover 1, the sensing unit 2 of design on protective cover 1 sends shutdown signal to control unit 3, control unit 3 is also controlled motor 6 as described above and is driven protective cover gear pole 7 to air outlet 4 inboard withdrawals to close protective cover 1, and the situation after closing as shown in Figure 5.
In addition, air outlet intelligence waterproof and dustproof structure of the present utility model has also designed a pushbutton unit 10, be used for manually changing according to actual needs the folding condition of protective cover 1, the button (not shown) that links to each other with described pushbutton unit 10 can be arranged on the device housings 8.In the closed condition of protective cover 1, thereby make pushbutton unit 10 send start signal, protective cover 1 can be opened by manually pressing the button.Certainly,, if desired, thereby also can make pushbutton unit 10 send shutdown signal, protective cover 1 is closed by manually pressing the button in the opening of protective cover 1.
In sum, as shown in Figure 3, sensing unit 2, pushbutton unit 10 pass through different signals with Host Status unit 9, control by the folding of 6 pairs of protective covers 1 of control unit 3 CD-ROM drive motor; When sensing unit 2 detects liquid or humidity and surpasses preset value, send signal and give control unit 3, control unit 3 sends to motor 6 and closes protective cover 1 signal; When pressing the button unit 10, control unit 3 sends the signal that changes current protective cover 1 folding condition, if promptly protective cover 1 is in open mode, then sends out code; If be in closed condition, then send OPEN; And Host Status unit 9 only sends signal to control unit 3 when start and shutdown, is opening signal during start, is shutdown signal during shutdown, receives and handle coherent signal by control unit 3, notice motor 6 complete operations.
When protective cover 1 is opened, can keep out the water-sprinkling of upward oblique and horizontal direction; Then can resist the water-sprinkling in each orientation after closing, and fundamentally eliminate dust enters system from air outlet 4 possibility.
As shown in Figure 6, be the another kind of mounting means of protective cover 1, wherein, the protective cover rotating shaft 11 that is positioned at protective cover 1 top edge is mounted on an end of shielding support 12, and shielding support 12 other ends are fixed on the device housings 8.Shielding support 12 for example can be two poles.After protective cover 1 is opened, be air outlet up and down, but lower ending opening is bigger, can further reduces windage thus.
As shown in Figure 7, protective cover 1 can be made of the protection body more than, described polylith protection body preferably is set to overlap, and promptly the lower limb of the protection body in top is higher than the top edge of a following protection body, and is good to guarantee the water resistance after protective cover 1 is opened.
Protection effect about air outlet intelligence waterproof and dustproof structure of the present utility model sees also Fig. 8 to Figure 11, is example with embodiment one wherein.
The technical staff has carried out blast emulation to the air outlet intelligence waterproof and dustproof structure and the louver structure of traditional air outlet, the utility model the foregoing description one respectively, its result as shown in Figure 8, curve wherein is the blast curve, wind pressure value is low more, windage is few more, and noise is low more.In the simulation result, the blast of common air outlet (curve 1) is 75 handkerchiefs, and the blast of the air outlet of the utility model the foregoing description (curve 2) is 105 handkerchiefs, increases 40% than common solution, the blast of blinds air outlet (curve 3) is 130 handkerchiefs, increases about 73% than common solution.As seen, air outlet of the present utility model, its windage is much smaller with respect to the blinds air outlet.
The air flows situation of the air outlet of the utility model embodiment one and blinds air outlet is compared, and both have approaching flow region, and many but the windage of the air outlet of the utility model the foregoing description will be low, this also is advantage of the present utility model place.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (18)
1, a kind of air outlet intelligence waterproof and dustproof structure is characterized in that it comprises:
Protective cover: be arranged on the air outlet outside on the device housings;
At least two collapsible corrugated platings: be separately positioned on the left and right sides of described protective cover, the collapsible corrugated plating of each piece all is connected between described protective cover and the air outlet, described collapsible corrugated plating and the described protective cover structure that forms as one.
2, air outlet intelligence waterproof and dustproof structure according to claim 1 is characterized in that wherein said collapsible corrugated plating and protective cover are formed in one.
3, air outlet intelligence waterproof and dustproof structure according to claim 1 is characterized in that wherein said collapsible corrugated plating and protective cover are the glue downlink connection.
4, air outlet intelligence waterproof and dustproof structure according to claim 1 is characterized in that wherein said collapsible corrugated plating and protective cover adopt the mode of screw threads for fastening to be connected.
5, air outlet according to claim 1 intelligence waterproof and dustproof structure is characterized in that the top edge of wherein said protective cover fixedlys connected with described device housings.
6, air outlet intelligence waterproof and dustproof structure according to claim 1, it is characterized in that wherein also comprising the protective cover rotating shaft that is positioned at the protective cover top edge, described protective cover rotating shaft is arranged on an end of a shielding support, and the other end of described shielding support is fixed on the described device housings.
7, air outlet intelligence waterproof and dustproof structure according to claim 6 is characterized in that wherein said shielding support is two poles.
8, air outlet intelligence waterproof and dustproof structure according to claim 1 is characterized in that wherein also comprising a control unit, and described control unit drives a motor folding of protective cover is controlled.
9, air outlet intelligence waterproof and dustproof structure according to claim 8, it is characterized in that wherein said motor drives the protective cover gear pole that is engaged with by motor gear, thereby described pole is stretched out to the described air outlet outside outwards prop described protective cover, thereby perhaps close described protective cover to the inboard withdrawal of described air outlet.
10, air outlet intelligence waterproof and dustproof structure according to claim 8, it is characterized in that wherein also comprising a sensing unit that is arranged on the described protective cover, described sensing unit links to each other with described control unit, and sends shutdown signal according to the environmental information that is sensed to described control unit.
11, air outlet intelligence waterproof and dustproof structure according to claim 10 is characterized in that wherein said sensing unit is liquid sensor or humidity sensor.
12, air outlet intelligence waterproof and dustproof structure according to claim 10 is characterized in that the detection bodies of wherein said sensing unit is embedded among the described protective cover.
13, air outlet intelligence waterproof and dustproof structure according to claim 10 is characterized in that the detection bodies of wherein said sensing unit is installed in the top outside of described protective cover.
14, air outlet intelligence waterproof and dustproof structure according to claim 8, it is characterized in that wherein also comprising a pushbutton unit, described pushbutton unit links to each other with described control unit, and sends folding condition change signal according to the action of pressing in the external world to described control unit.
15, air outlet intelligence waterproof and dustproof structure according to claim 14 is characterized in that the button that wherein links to each other with described pushbutton unit is arranged on the described device housings.
16, air outlet intelligence waterproof and dustproof structure according to claim 8, it is characterized in that wherein also comprising a Host Status unit, described Host Status unit links to each other with described control unit, and sends corresponding folding signal according to the on-off state of described equipment to described control unit.
17, air outlet intelligence waterproof and dustproof structure according to claim 1 is characterized in that wherein said protective cover is made of the protection body more than.
18, air outlet intelligence waterproof and dustproof structure according to claim 17 is characterized in that wherein said polylith protection body is set to overlap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201239185U CN201369893Y (en) | 2008-11-26 | 2008-11-26 | Air outlet intelligent water-proof dust-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201239185U CN201369893Y (en) | 2008-11-26 | 2008-11-26 | Air outlet intelligent water-proof dust-proof structure |
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| CN201369893Y true CN201369893Y (en) | 2009-12-23 |
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| CNU2008201239185U Expired - Fee Related CN201369893Y (en) | 2008-11-26 | 2008-11-26 | Air outlet intelligent water-proof dust-proof structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548311A (en) * | 2010-12-31 | 2012-07-04 | 联想(北京)有限公司 | Electronic equipment |
| CN105658001A (en) * | 2015-12-30 | 2016-06-08 | 北京天诚同创电气有限公司 | Waterproof ventilation device |
| CN107787141A (en) * | 2016-08-25 | 2018-03-09 | 江森自控科技公司 | Including the shell for the electronic installation that the air outlet slit alleviated is penetrated into fluid |
| US11085832B2 (en) | 2016-08-25 | 2021-08-10 | Johnson Controls Technology Company | Mitigation of fluid ingress via convection venting on electronic devices |
| CN115105898A (en) * | 2022-06-24 | 2022-09-27 | 飞依诺科技股份有限公司 | Oxygen concentrator |
-
2008
- 2008-11-26 CN CNU2008201239185U patent/CN201369893Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548311A (en) * | 2010-12-31 | 2012-07-04 | 联想(北京)有限公司 | Electronic equipment |
| CN105658001A (en) * | 2015-12-30 | 2016-06-08 | 北京天诚同创电气有限公司 | Waterproof ventilation device |
| CN107787141A (en) * | 2016-08-25 | 2018-03-09 | 江森自控科技公司 | Including the shell for the electronic installation that the air outlet slit alleviated is penetrated into fluid |
| US11085832B2 (en) | 2016-08-25 | 2021-08-10 | Johnson Controls Technology Company | Mitigation of fluid ingress via convection venting on electronic devices |
| CN115105898A (en) * | 2022-06-24 | 2022-09-27 | 飞依诺科技股份有限公司 | Oxygen concentrator |
| CN115105898B (en) * | 2022-06-24 | 2024-04-30 | 飞依诺科技股份有限公司 | Oxygen concentrator |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20161126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |