CN105103078A - Optimisation of heat regulation in device comprising fan - Google Patents
Optimisation of heat regulation in device comprising fan Download PDFInfo
- Publication number
- CN105103078A CN105103078A CN201380070128.9A CN201380070128A CN105103078A CN 105103078 A CN105103078 A CN 105103078A CN 201380070128 A CN201380070128 A CN 201380070128A CN 105103078 A CN105103078 A CN 105103078A
- Authority
- CN
- China
- Prior art keywords
- temperature
- fan
- parts
- processor
- sense
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/206—Cooling means comprising thermal management
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Projection Apparatus (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention concerns a device (1) comprising: at least one component (7), at least one fan (4) for regulating the temperature of the component (7), a processor (5), and at least one temperature sensor (3), characterised in that the processor (5) is configured to control the direction of rotation of the fan (4) on the basis of the temperature of the component (7) measured by the temperature sensor (3), so as to regulate the temperature of the component (7) and the noise generated by the fan (4). The invention also concerns a method for regulating the temperature in this device.
Description
Technical field
The present invention relates to a kind of device, the temperature of described device controls to be provided by mechanical ventilation system.
Background technology
Electronic installation generally includes at least one fan to control its temperature.
It is indispensable that effective temperature controls the performance of holdout device.
In fact, the heating of the parts of device often causes the deterioration of the performance of this device.
When this such as occurs in the electronic installation comprised for the display of image and the luminescent system of projection.Especially, to be shown by luminescent system or the quality (and especially acutance) of the image that projects depends on that the suitable temperature of luminescent system regulates.The too high temperature of the parts of luminescent system makes the degradation of produced image.
In the prior art, control by processor management the temperature of at least one parts of electronic installation, described processor controls the rotating speed of fan according to the temperature of these parts.
According to the temperature of parts, described rotating speed specifically has the Three Estate from one-level to three grades.
But with this control, the noise of such device is very large.Especially, the noise that this device produces increases along with the heating of device.
When the load of this device very large (such as, the situation when its display or projecting quality image), maybe when this device is placed in the environment of high temperature, the noise that this device produces is maximum, and this makes user feel depressed and makes troubles to it.
Some devices reduce noise by the rotating speed reducing fan, but this has the performance of damage device.
In addition, when mancarried device (assuming that removable and can under any circumstance (meeting, travelling) use), user can not with optimum and comfortable mode uses described device.
Summary of the invention
In order to make up these defects, the present invention proposes a kind of device, described device comprises at least one parts, at least one is for controlling the fan of the temperature of described parts, processor and at least one temperature sensor, it is characterized in that, described processor is configured to: the sense of rotation controlling described fan according to the temperature recorded by described temperature sensor, thus controls the temperature of described parts and the noise of described fan generation.
This makes it possible to control the temperature of described parts and makes the noise minimization that fan produces simultaneously.
The present invention is advantageously supplemented by the independent following characteristics of employing or the technically feasible combination of these features:
Described device also comprises at least one outside opening by air-flow, the dimension adjustable of at least one outside opening described, described processor is configured to: control the sense of rotation of described fan and the size of described outside opening according to the temperature of described parts;
-described processor is configured to: the size increasing described outside opening along with the rising of the temperature of described parts;
-described processor is configured to: the rotating speed controlling described fan according to the temperature of described parts.
-for given rotating speed, described fan has:
ο produces the sense of rotation with the noise of the first amplitude,
ο produces another sense of rotation with the noise of the second amplitude, and described second amplitude is greater than the first amplitude,
Described processor is configured to: when the temperature of described parts exceedes threshold value, selects the generation of described fan to have the sense of rotation of the noise of the second amplitude;
-described processor is configured to: when the size of the outside opening of described device is maximum, selects the generation of described fan to have the sense of rotation of the noise of the second amplitude;
-described device comprises luminescent system, and described luminescent system comprises the optical element of light-emitting component and the projection for image, and the described parts that temperature is controlled correspond to described optical element;
-described device is portable image projector.
The invention still further relates to the temperature controlled processes in such as aforementioned means, described temperature controlled processes comprises step: the sense of rotation controlling fan according to temperature as described below, described temperature is dependent on the temperature of at least one parts of the described device recorded by temperature sensor, thus the noise minimization while controlling the temperature of described parts, fan being produced.
Described method also can comprise another step, according to this step, during the temperature of described parts raises, the size of processor to the outside opening of described device controls, until reach the full-size of described outside opening, the sense of rotation of described processor fan according to the thermal creep stress of described parts subsequently.
Different embodiments of the invention provide multiple advantage.
Therefore, described device achieve to temperature control (that is, the good performance of indication device) and for user reduce between noise trade off optimization.Such as, when described device comprises the luminescent system being configured to display or projected image, keep reducing noise while guaranteeing display and projection performance.
Therefore, described device uses and makes us happier.
In addition, described device achieves simply and the temperature optimized controls, and still maintains the sound level of reduction simultaneously.
This programme is applicable to the device comprising fan effectively, and need not the overall structure checking these devices.
Accompanying drawing explanation
Further feature of the present invention, target and advantage will by hereafter disclosing, and following explanation is only illustrative and nonrestrictive and should reads with reference to accompanying drawing, in the accompanying drawings:
Fig. 1 is the schematic diagram of the embodiment according to device of the present invention;
Fig. 2 is the schematic diagram of another embodiment according to device of the present invention;
Fig. 3 is the schematic diagram of the embodiment according to control method of the present invention;
Fig. 4 is the schematic diagram of the exemplary embodiment according to control method of the present invention.
Embodiment
device
An embodiment according to device 1 of the present invention is schematically shown in Fig. 1.Described device 1 is electronic installation, and its temperature must be controlled.
Described device 1 comprises at least one parts 7.Parts 7 are such as optics and/or electronic type parts, can provide one or more functions for device 1.
Such as, in the embodiment of fig. 2, device 1 comprises luminescent system 2, and described luminescent system 2 is disposed for display image and/or for projected image.
It is such as that described projection surface is such as wall or other suitable surface any for showing the screen of image or the system for being projected towards projection surface by image.
In the illustrated example shown in fig. 2, luminescent system 2 comprises light-emitting component 11 and optical element 12.Element 11 is such as the light emitting diode (LEDs) of three primary colors (red, green, blue), and optical element 12 is one group of micro-reflector, and position and the inclination angle of described micro-reflector are electronically controllable.Optical element 12 can such as be integrated in microchip.
Element 11 sends one or more light towards element 12, and light projects towards projection surface by element 12, thus projects to image.Such projector is known in the prior art.
In the figure 2 example, the parts 7 of controlled temperature are the parts of system 2, such as, be optical element 12.
Parts 7 can also be other parts any that temperature needs the performance being controlled to holdout device 1, electronic cards, processor etc.
Device 1 comprises at least one fan 4 for the temperature of control assembly 7.If feasible, multiple fan 4 in device 1, can be had.
Device 1 also comprises processor 5.It can be that the primary processor of device 1 or being exclusively used in of hereinafter describing implement the processor of temperature controlled processes, and the different electric functions that described primary processor is configured twin installation 1 carry out managing (, load management mutual with user, management application etc.).
The temperature of luminescent system 2 is managed for guaranteeing that the performance of device 1 is very crucial.
Temperature specifically can be measured by one or more temperature sensor 3, and described one or more temperature sensor 3 is disposed in parts 7 or is adjacent to parts 7.
The temperature of luminescent system 2 depends primarily on following factor:
Environment temperature at ο device 1;
The working stage of ο device 1 (unloading phase, operationally, the complexity etc. of device when performing a large amount of tasks, task).
Especially, operationally, the temperature of parts 7 has the trend of rising.
But generally, the rising of the temperature of parts 7 makes the performance degradation of device 1.
In addition, the rotating speed increasing fan 4 reduces the rising of the temperature of parts 7, which increases the noise that device 1 produces.
Processor 5 is configured to: control the sense of rotation of fan 4 according to the temperature of parts 7 thus the noise while the temperature of control assembly, fan being produced is minimized.
Especially, processor makes it possible to reduce the temperature of parts 7 and the noise simultaneously still making fan 4 produce minimally is changed.The control of temperature and to reduce between noise compromise is therefore optimized, so just permission still reduces produced noise while the performance of holdout device 1.
Such as, in the illustrated example shown in fig. 2, wherein, parts 7 are a part for luminescent system 2, and the rising of the temperature of luminescent system 2 causes the illumination effect deterioration of system 2.
Therefore, the quality (acutance of such as image or sharpness) of the image produced is deteriorated along with the rising of the temperature of luminescent system 2.This is especially because the performance along with temperature of light-emitting component (LEDs) caused.
Owing to being controlled the sense of rotation of fan 4 by processor 5, the temperature of luminescent system 2 is controlled and is reduced the noise of fan 4 generation simultaneously.
For given rotating speed, compare other sense of rotation, fan 4 produces less noise in one rotational direction.
In fact, according to the sense of rotation of fan 4, air-flow is for sucking or blowout.The path that air flows in the device 1 is therefore different, and this will produce different aerodynamic noise.
Similarly, consider that the path of air-flow changes according to the sense of rotation of fan, then the temperature of parts 7 controls to change according to described sense of rotation.Especially, the sense of rotation of ventilation unit 4 especially depends on the relative position of fan 4 relative to parts 7 to temperature controlled impact.
Usually, the sense of rotation of bringing out maximum noise to reduce the sense of rotation of the temperature of parts 7 best.
As described above, for given speed, fan 4 has the sense of rotation that generation has the noise of the first amplitude (amplitude), and fan 4 also has another sense of rotation producing and have the noise of the second amplitude, and described second amplitude is greater than the first amplitude.
According to the possible aspect of the control that processor 5 is implemented, processor 5 is configured to: when the temperature of parts 7 is greater than threshold value, selects the generation of fan 4 to have the sense of rotation of the noise of the second amplitude.
When being less than this threshold value, processor 5 keeps producing the sense of rotation with the less noise of the first amplitude.
Except ventilation unit 4, device 1 can comprise at least one outside opening 10, and the size of described outside opening 10 is adjustable.Multiple outside opening 10 can also be configured with.
According to an example, processor 5 controls motor 14, and motor 14 controls the size of outside opening 10 (or multiple outside opening 10).Outside opening 10 such as comprises the element in the face of groove slides, the mobile size controlling opening 10 of this element.
These openings 10 allow air-flow towards the flows outside of device 1 and air-flow from device 1 externally to interior flowing.
Opening 10 can be disposed on the edge of device 1, or is arranged on the whole circumference of device 1.
According to an embodiment, processor 5 is configured to: control the sense of rotation of fan 4 and the size of opening 10 according to the temperature of parts 7.
Because another controling parameters available (size of opening 10), it is compromise that this two ore control makes it possible between noise that the temperature of more accurately management component 7 and fan 4 produce.
According to a particular example, processor 5, except controlling the size of opening 10, also uses motor 14 to control the profile of outside opening 10.
Different control can be implemented in the device 1 and carry out control temperature.These controls can be combined, and are used partly or are not used.
According to an aspect, processor 5 is configured to: the size increasing opening 10 along with the rising of the temperature of parts 7.
Just as should be understood, due to the airflow circulating in device 1, the increase of the size of outside opening 10 can reduce the temperature of parts 7.
According to another aspect, processor 5 is configured to: the sense of rotation and the rotating speed that control fan 4 according to the temperature of parts 7 simultaneously.
According to another aspect, processor 5 is configured to: when the size of outside opening 10 is maximum, selects the generation of fan 4 to have the sense of rotation of the noise (maximum noise) of the second amplitude.This means that first processor 5 controls the increase of the size of outside opening 10 when the temperature of control assembly 7.Once reach full-size, processor 5, by controlling the sense of rotation of fan 4, if passable, also controls the rotating speed of fan 4.
The device 1 comprising parts 7 can be such as portable image projector.In this case, this device comprises luminescent system 2.
Such projector can be carried (similar usb key) and is allowed user's projected image under various circumstances by user.
Requirement temperature can also be comprised control and reduce other portable unit of operating noise.
Without limitation, can also comprise usb key (USBkey), camera head, camera, computing machine, projector or portable phone, these devices comprise its temperature one or more must controlled element.
the example controlled
In figure 3, temperature-controlled process in before described device 1 especially comprises step e 2, step e 2 comprises the sense of rotation controlling fan 4 according to the temperature of at least one parts 7 in device 1, thus while the temperature of control assembly 7, make the noise minimization that fan 4 produces.The temperature of parts 7 is measured by aforesaid temperature sensor 3 and is sent to processor 5 (step e 1).
According to an aspect of described method, if device 1 comprises at least one outside opening 10, then processor 5 first controls the size of opening 10, until reach the full-size of described opening 10, subsequently according to the sense of rotation of the thermal creep stress fan 4 of parts 7.
The specific of described control is described but nonrestrictive example hereinafter with reference to Fig. 4.
Between the starting period of device 1, the temperature T of the parts 7 that sensor 3 records
2(step e 3) is low.The sense of rotation of fan 4 is chosen to the direction of generation first magnitude noise (low noise) by processor 5.Processor 5 makes outside opening 10 keep cutting out (step e 4).
As the temperature T of parts 7 (such as, the optical element 12 of luminescent system 2)
2exceed threshold value T
θtime, processor 5 starts the size of opening 10 is increased with the temperature (step e 5) reducing parts 7.
Although this makes temperature raise, can the performance (such as, the illumination effect of image that system 2 projects) of holdout device 1, still make the noise minimization of fan 4 simultaneously.As emphasized before, when luminescent system 2, temperature raises the quality deterioration making image.
As the temperature T of parts 7 (such as, the optical element 12 of luminescent system 2)
2exceed threshold value T
β(T
β>T
θ) and outside opening 10 is of a size of maximum time, processor 5 selects the generation of fan 4 to have the sense of rotation of the noise (maximum noise, step e 6) of the second amplitude.
This sense of rotation of fan 4 makes it possible to cool described parts 7 further.Although the described sense of rotation of fan 4 is more noisy, it can the performance (such as, the quality of image that system 2 shows or projects) of holdout device 1, even if the temperature T of parts 7
2very high.
In the example present, assuming that the invariablenes turning speed of fan 4.But the rotating speed of fan 4 also can be controlled by processor 5 and be changed at an elevated temperature.
Similarly, can be effective, the size of outside opening 10 and the sense of rotation (and/or its rotating speed) of fan 4 are controlled simultaneously.Especially, opening 10 not necessarily will reach the sense of rotation that its full-size just changes fan 4.
Similarly, the control implemented in the device 1 can be depending on multiple temperature thresholds of parts 7, but also depends on multiple temperature recorded.
In the examples described above, if the temperature of parts 7 is more representative temperature, then only consider the temperature of parts 7 (such as, optical element 12).
But, also under the temperature conditions of other parts 7 considering optical system 2, fan 4 and opening 10 can be controlled.In the figure 2 example, processor 5 it is also conceivable to the temperature of light-emitting component 11.
The present invention realizes the compromise preferred arrangement between device performance and the noise of device generation.The present invention is especially but not limited to being applied to the device being configured to project or show image.
Claims (10)
1. a device (1), comprising:
-at least one parts (7),
-at least one is for controlling the fan (4) of the temperature of described parts (7),
-processor (5), and
-at least one temperature sensor (3),
It is characterized in that, described processor (5) is configured to: the sense of rotation controlling described fan (4) according to the temperature of the described parts (7) recorded by described temperature sensor (3), thus controls the noise that the temperature of described parts (7) and described fan (4) produce.
2. device according to claim 1 (1), comprise at least one outside opening (10) by air-flow further, the dimension adjustable of described at least one outside opening (10), described processor (5) is configured to: control the sense of rotation of described fan (4) and the size of described outside opening (10) according to the temperature of described parts (7).
3. device according to claim 2 (1), wherein, described processor (5) is configured to: the size increasing described outside opening (10) along with the rising of the temperature of described parts (7).
4. device according to any one of claim 1 to 3, wherein, described processor (5) is configured to: the rotating speed controlling described fan (4) according to the temperature of described parts (7).
5. device according to any one of claim 1 to 4 (1), wherein, for given rotating speed, described fan (4) has:
-produce the sense of rotation with the noise of the first amplitude,
-producing another sense of rotation with the noise of the second amplitude, described second amplitude is greater than described first amplitude,
Described processor (5) is configured to: when the temperature of described parts (7) is greater than threshold value, selects the generation of described fan (4) to have the sense of rotation of the noise of the second amplitude.
6. device according to claim 5, wherein, described processor (5) is configured to: when the size of the outside opening (10) of described device (1) is maximum, select the generation of described fan (4) to have the sense of rotation of the noise of the second amplitude.
7. device according to any one of claim 1 to 6 (1), comprise luminescent system (2), described luminescent system (2) comprises light-emitting component (11) and the optical element (12) for projected image, and the described parts (7) that temperature is controlled are corresponding to described optical element (12).
8. device according to any one of claim 1 to 7, described device (1) is portable image projector.
9. one kind for controlling the method for the temperature in device according to any one of claim 1 to 8 (1), comprise step: the sense of rotation controlling fan (4) according to the temperature of at least one parts (7) in the described device (1) recorded by temperature sensor (3), thus the noise minimization while controlling the temperature of described parts (7), described fan (4) being produced.
10. method according to claim 9, wherein, during the temperature of described parts (7) raises, the size of processor (5) to the outside opening (10) of described device (1) controls, until reach the full-size of described outside opening, the sense of rotation of described processor fan (4) according to the thermal creep stress of described parts (7) subsequently.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1262602 | 2012-12-21 | ||
| FR1262602A FR3000239B1 (en) | 2012-12-21 | 2012-12-21 | OPTIMIZING THERMAL CONTROL IN A DEVICE COMPRISING A FAN |
| PCT/EP2013/074106 WO2014095203A1 (en) | 2012-12-21 | 2013-11-18 | Optimisation of heat regulation in a device comprising a fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105103078A true CN105103078A (en) | 2015-11-25 |
Family
ID=48539262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380070128.9A Pending CN105103078A (en) | 2012-12-21 | 2013-11-18 | Optimisation of heat regulation in device comprising fan |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20150322955A1 (en) |
| EP (1) | EP2936265A1 (en) |
| CN (1) | CN105103078A (en) |
| FR (1) | FR3000239B1 (en) |
| WO (1) | WO2014095203A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110249288A (en) * | 2017-02-01 | 2019-09-17 | 微软技术许可有限责任公司 | Adaptive ventilation opening |
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| US20020064025A1 (en) * | 2000-11-27 | 2002-05-30 | Nec Corporation | Computer having a function for controlling temperature of file bays |
| CN1897213A (en) * | 2005-09-06 | 2007-01-17 | 南京Lg同创彩色显示系统有限责任公司 | Heat radiation device and method for plasma display panel device |
| CN101520683A (en) * | 2008-02-29 | 2009-09-02 | 联想(北京)有限公司 | Method for controlling computer temperature and computer |
| CN201638129U (en) * | 2009-11-05 | 2010-11-17 | 恩斯迈电子(深圳)有限公司 | Heat dissipation module with size-adjustable ventilation opening and related computer system |
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| KR100294266B1 (en) * | 1996-10-29 | 2001-07-12 | 윤종용 | Computer and peripheral with auto-negotiation by analog signal level |
| JP3637181B2 (en) * | 1997-05-09 | 2005-04-13 | 株式会社東芝 | Computer system and cooling control method thereof |
| US6142866A (en) * | 1999-03-18 | 2000-11-07 | Nokia Telecommunications, Oy | Method and apparatus for providing air circulation control for a base transceiver station |
| US6470289B1 (en) * | 1999-08-05 | 2002-10-22 | Compaq Information Technologies Group, L.P. | Independently controlling passive and active cooling in a computer system |
| JP3769200B2 (en) * | 2001-03-06 | 2006-04-19 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Cooling fan control method and apparatus |
| DE10346600A1 (en) * | 2003-10-07 | 2005-05-12 | Twinhead Internat Corp Taipei | Fan motor speed detecting device for use between motor and portable computer, has speed output module making speed output terminal to output speed signal to computer in response to speed of fan motor |
| TWI247190B (en) * | 2004-11-09 | 2006-01-11 | Coretronic Corp | Self dust-off apparatus and method thereof |
| US8515589B2 (en) * | 2010-11-19 | 2013-08-20 | International Business Machines Corporation | Dynamic cooling system for electronic device with air flow path changes |
-
2012
- 2012-12-21 FR FR1262602A patent/FR3000239B1/en not_active Expired - Fee Related
-
2013
- 2013-11-18 WO PCT/EP2013/074106 patent/WO2014095203A1/en active Application Filing
- 2013-11-18 EP EP13792029.4A patent/EP2936265A1/en not_active Withdrawn
- 2013-11-18 CN CN201380070128.9A patent/CN105103078A/en active Pending
- 2013-11-18 US US14/654,239 patent/US20150322955A1/en not_active Abandoned
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020064025A1 (en) * | 2000-11-27 | 2002-05-30 | Nec Corporation | Computer having a function for controlling temperature of file bays |
| CN1897213A (en) * | 2005-09-06 | 2007-01-17 | 南京Lg同创彩色显示系统有限责任公司 | Heat radiation device and method for plasma display panel device |
| CN101520683A (en) * | 2008-02-29 | 2009-09-02 | 联想(北京)有限公司 | Method for controlling computer temperature and computer |
| CN201638129U (en) * | 2009-11-05 | 2010-11-17 | 恩斯迈电子(深圳)有限公司 | Heat dissipation module with size-adjustable ventilation opening and related computer system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110249288A (en) * | 2017-02-01 | 2019-09-17 | 微软技术许可有限责任公司 | Adaptive ventilation opening |
| CN110249288B (en) * | 2017-02-01 | 2023-09-29 | 微软技术许可有限责任公司 | Self-adaptive ventilation opening |
| US12061503B2 (en) | 2017-02-01 | 2024-08-13 | Microsoft Technology Licensing, Llc | Self-adaptive vents |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3000239B1 (en) | 2016-05-06 |
| US20150322955A1 (en) | 2015-11-12 |
| EP2936265A1 (en) | 2015-10-28 |
| FR3000239A1 (en) | 2014-06-27 |
| WO2014095203A1 (en) | 2014-06-26 |
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