CN102450114A - Protection cover for one or more parts having a suction effect air-channelling element, and related housing - Google Patents
Protection cover for one or more parts having a suction effect air-channelling element, and related housing Download PDFInfo
- Publication number
- CN102450114A CN102450114A CN2010800078044A CN201080007804A CN102450114A CN 102450114 A CN102450114 A CN 102450114A CN 2010800078044 A CN2010800078044 A CN 2010800078044A CN 201080007804 A CN201080007804 A CN 201080007804A CN 102450114 A CN102450114 A CN 102450114A
- Authority
- CN
- China
- Prior art keywords
- air
- mai
- cover
- gas outlet
- air inlet
- 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
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/206—Air circulating in closed loop within cabinets wherein heat is removed through air-to-air heat-exchanger
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Ventilation (AREA)
Abstract
The invention relates to a cover (CP) for protecting at least one part (c1) capable of radiating heat, and comprising a main wall (PP) provided with ventilation means (MAi) and adapted, once installed in a system, to be mounted opposite said part (C1) in a vertical or inclined direction. Said ventilation means (MAi) includes at least one air-channelling means protruding above the general level of the outer surface (FE) of the main wall (PP) and having a so-called lower end (E1) provided with an air inlet (EA) communicating with an inner area (ZI) located behind the inner surface (FI) of the main wall (PP) opposite the outer surface (FE), and a so-called upper end (E2) provided with an air outlet (SA) communicating with the inner area (ZI) and adapted, once the cover is installed, to be located at a higher level than that of the air inlet (EA); so as to induce an air suction effect for promoting the dissipation of the heat radiated by thermal convection.
Description
Technical field
The present invention relates to protective cover, its role is to protect the parts of at least one radiations heat energy, for example printed circuit board (PCB) or PCB (Printed Circuit Board).
Background technology
Be well known to those skilled in the art; The parts of some radiations heat energy (for example because it comprises at least one electronic device) are fragile relatively; Therefore must be with protective cover or casing protection; Said casing comprises, for example, and the pedestal or part stent and the protective cover (can connect mutually through anchor clamps in case of necessity) that connect mutually.
The parts of radiations heat energy, its heat that gives off must be discharged to avoid overheated.For this reason, for example can use the very little fan of size, its effect is that the air of suction outside cools off by the inner air of radiation heating or suction and by the inner air of radiation heating they is discharged to the outside.This solution has been guaranteed efficiently cooling, but it costs an arm and a leg, and volume is big, the big and consumed power of noise.
Another kind of solution is the ventilation unit that is limited on the main wall of protective cover, is used for, in case install, will be in the face of the parts placement.The form of these ventilation units generally is the simple opening (or ventilating opening) that is limited in the main wall.These openings must keep small size, so that parts can be effectively protected, they only allow the small number of external air to infiltrate, so that cooling is not very effective.In fact, the air in the external environment condition of largest portion has only touched near the outer surface of the protective cover master wall the opening, and has only inner air to arrive the outside and could it be cooled off.
Summary of the invention
The objective of the invention is to improve the situation of indication through passive solution (that is, not consumed power).
For this reason; The present invention provides a kind of protective cover; Be used to protect at least one parts (for example printed circuit board (PCB) (or PCB)), said parts can radiations heat energy in when operation, and said protective cover comprises the main wall that has ventilation unit; In case be installed in the system, said main wall to said parts vertically or incline direction place.
This protective cover; It is characterized in that; Ventilation unit is included at least one outstanding air flue element of general location top of the outer surface of its main wall, and it has: have the lower end of air inlet, said air inlet is connected with the interior zone at the inner surface rear opposite with outer surface that is positioned at main wall; And the upper end that has the gas outlet; Said gas outlet is connected with said interior zone, in case install said cover, said gas outlet is positioned at the position higher than the position of said air inlet; In order to causing swabbing effect, so that the discharge through thermal convection promotion radiations heat energy to air.
Can comprise further feature alone or in combination according to protective cover of the present invention, especially:
-ventilation unit can comprise at least two air flue elements, and said air flue element can roughly be parallel to each other in case of necessity;
-air inlet can have than the air of said gas outlet discharges the big air entering area of area;
-each air flue element can be set to the shape of cylindrical tube;
-each air flue element can have the shape that is suitable for causing Venturi effect;
-each air flue element can comprise the cross section of essentially rectangular;
-air inlet and/or gas outlet can be equipped with and be suitable for limiting the net grid that exterior object gets into.
The present invention also provides a kind of casing, and it comprises the protective cover of type as stated.
Description of drawings
In conjunction with accompanying drawing and the following specific descriptions that provide in detail, other features and advantages of the present invention will be more obvious, and accompanying drawing is following:
-Fig. 1 schematically shows the cutaway view of embodiment on vertical direction (DV) that comprises the casing of protective cover according to the present invention;
-Fig. 2 schematically shows the end view at the lower wall place of casing shown in Figure 1;
-Fig. 3 schematically shows the front view of the lower end of air flue element, wherein is provided with the net grid at the air inlet place of air flue element.
These accompanying drawings not only can help to improve invention, also help its definition in case of necessity.
Embodiment
The protective cover (CP) that the purpose of this invention is to provide the parts (CI) that are used to protect at least one radiations heat energy.
Next, as non-limitative example, protective cover (CP) is the part of casing (B), is used to lay and protect the parts (CI) of at least one printed circuit board (PCB) (or PCB) type.But the present invention is not limited to such parts.It relates to the parts of all radiations heat energy types and must receive the protection of at least one protective cover.
In addition, as non-limitative example, protective cover (so casing (B)) is the part of vehicle, for example, and motor vehicles (for example automobile).Yet the present invention is not limited to this application.
At first, will the embodiment according to protective cover CP of the present invention be described with reference to Fig. 1 and 2.
Shown in nonrestrictive example in, protective cover CP is attached to pedestal (or part stent) EM and therewith forms casing B.This connection can be accomplished by all means well known by persons skilled in the art, especially passes through the method for anchor clamps or screw.
Parts CI (printed circuit board (PCB) that especially comprises electronic device CE here) is fixed on the pedestal EM.It should be noted that parts CI can be fixed on the protective cover CP under the situation that does not have pedestal EM (therefore not having casing B).
For example, this protective cover CP comprises: main wall PP, be called lower wall PLI sidewall, be called the sidewall of upper wall PLS and the complementary sidewall that two interconnect.
Main wall PP has ventilation unit MAi, in case protective cover CP is installed in (being automobile) in the system under this situation, said main wall is to said parts CI (being printed circuit board (PCB) here) DV or incline direction placement vertically.
In non-restrictive example shown in Figure 1, main wall PP is placed in the plane that comprises vertical direction DV.But it can be placed on respect in this vertical direction DV plane inclined.The angle of inclination must be strict less than+/-80 °, preferably less than+/-30 °.
Ventilation unit MAi comprises at least one air flue element, and it is outstanding above the general location of the outer surface FE of main wall PP, and said outer surface FE is with opposite towards the directed inner surface FI of parts CI.
In non-restrictive example shown in Figure 2, ventilation unit MAi comprises three outstanding air flue element MA1 to MA3 (i=1-3).Yet the present invention is not limited to the number (3) of this air flue element MAi.In fact, it requires on main wall PP, to be provided with at least one air flue element.Therefore, ventilation unit MAi can comprise the air flue element MAi that one or two is outstanding, even more than three (for example four or five).
In addition, in non-restrictive example shown in Figure 2, air flue element MAi roughly is parallel to each other, and is roughly the same in addition.But these not necessarily.In fact, they can be different mutually and/or directed with slightly different modes.Therefore, their along the size of three direction in spaces one of them can change at least.
Each air flue element MAi comprises two mutual opposite end E1 and E2, is called lower end and upper end respectively.Should be understood that as shown in the figurely, lower end E1 is positioned at than low position, E2 present position, upper end.
Lower end E1 has the air inlet EA that is connected with interior zone ZI, and said interior zone is positioned at the inner surface FI rear of main wall PP, and it holds parts CI.
Upper end E2 has the gas outlet SA that is connected with interior zone ZI equally.
It should be noted that between preferred lower end E1 and the upper end E2 to be connected, as shown in the figure.But this not necessarily.In fact, the inside that can consider the air flue element MAi that is provided at them is penetrated into more depths and/or acceleration in the interior zone ZI with their separated dividing plates (solid or have the opening that limits slit) to force from air outside stream.
Because lower end E1 and the final separately location (in case promptly protective cover CP installs) of upper end E2, the gas outlet SA of air flue element MAi is positioned at the higher position, position than the air inlet EA of same air flue element MAi.Therefore, between gas outlet SA and air inlet EA, have pressure differential, it causes the air swabbing effect similar with the air swabbing effect that in chimney, exists.Therefore, the extraneous air (cold) that infiltrates the air flue element MAi from air inlet EA (lower end) is attracted to eminence through gas outlet SA (upper end), thereby promotes the discharge by the heat of parts CI institute radiation through thermal convection.In fact, this phenomenon is called as hot-air and independently is tending towards rising.
In other words; Cool extraneous air infiltrates among the interior zone ZI through each air inlet EA; Through thermal convection absorb inner air that the radiation that produced by parts CI heats with heat, and drained into outside the protective cover CP via each gas outlet SA with the form of heated air.
As in Fig. 2 with that kind shown in the non-limited way, for the air stream (that is, by the air of radiations heat energy heating) that quickens to extract out convection current, advantageously, air inlet EA has and discharges the big air of area than the air of gas outlet SA and get into area.It should be noted that in Fig. 2 the air of gas outlet SA is discharged the area with dashed lines and marked, because this figure is the end view (therefore air inlet EA a side) of lower wall PLI.Should be appreciated that the difference in areas between import EA and the outlet SA is in order to produce negative pressure, to cause swabbing effect (thereby air stream quickens).
For example, the air of the air inlet EA air that gets into the comparable gas outlet SA of area is discharged area greatly at least 40%.Preferred select greatly at least 50%.
Air inlet EA and gas outlet SA force to be placed with roughly one of them above another (promptly in case roughly vertically alignment after installing), and be as shown in the figure.In fact, can imagine that they slightly squint along general horizontal direction.Therefore, SA relative air inlet EA in gas outlet is squinted forward.
In addition, in example illustrated in figures 1 and 2, each air flue element MAi is set to the shape of the cylindrical tube of rectangular cross section.But this not necessarily.In fact, cross section can have other shape (like square or semicircle or half elliptic) except that rectangle, and air flue element MAi can not be cylindrical (for example, its shape can be shaped form).
It should be noted that at cross section be under the situation of essentially rectangular, the elongation of the longest edge of rectangle is favourable greater than the elongation of the minor face of this rectangle.For example, the ratio that can consider elongation is between about 2 to about 5.
In addition, each air flue element MAi can have the shape that is suitable for causing venturi (Venturi) effect in case of necessity.For example, each air flue element MAi can have at least one slit between lower end E1 and upper end E2.Such slit is used to cause the acceleration of air stream.
At last, as shown in Figure 3, air inlet EA and/or gas outlet SA can be equipped with and be suitable for limiting the net grid G in exterior object (like wisp or chip) the entering interior zone ZI.Should be noted that each net grid G can be an adapter, also can be and an air inlet EA or the incorporate part of gas outlet SA.
These net grid can have make its can blockage size less than the Any shape of the exterior object of selected threshold value.Thereby in the example shown, net grid G comprises the grid grid, but it can comprise rectangular mesh or network, perhaps comprises circular or oval-shaped hole.
Can advantageously be embodied as plastics or synthetic material according to protective cover CP of the present invention, for example, through using mould molded and shaped (when the shape of air flue element was simple relatively, for example at shown in Fig. 1 to Fig. 3 those, its complexity can be restricted).
The invention is not restricted to the above protective cover of only describing with by way of example and the embodiment of casing, but comprise all modification that those skilled in the art can expect in the scope of following claim.
Claims (10)
1. one kind is used for protective cover (CP) that at least one parts (CI) of radiations heat energy are protected; Said cover (CP) comprises the main wall (PP) that has ventilation unit (MAi); In case be installed in the system; Said main wall to said parts (CI) vertically or incline direction place, it is characterized in that said ventilation unit (MAi) comprises at least one air flue element of the general location top of the outer surface (FE) that protrudes in said main wall (PP); It has: have the lower end (E1) of air inlet (EA), said air inlet is connected with the interior zone (ZI) at inner surface (FI) rear opposite with said outer surface (FE) that is positioned at said main wall (PP); And the upper end (E2) that has gas outlet (SA); Said gas outlet (SA) is connected with said interior zone (ZI); In case install said cover (CP); Said gas outlet is positioned at the higher position, position than said air inlet (EA), in order to causing the swabbing effect to air, so that the discharge through thermal convection promotion radiations heat energy.
2. cover as claimed in claim 1 is characterized in that, said ventilation unit (MAi) comprises at least two air flue elements.
3. cover as claimed in claim 2 is characterized in that, said air flue element (MAi) roughly is parallel to each other.
4. like each described cover in the claim 1 to 3, it is characterized in that said air inlet (EA) has than the air of said gas outlet (SA) discharges the big air entering area of area.
5. cover as claimed in claim 4 is characterized in that, said air gets into area and discharges area greatly at least 40% than said air.
6. like each described cover in the claim 1 to 5, it is characterized in that each air flue element (MAi) is set to the shape of cylindrical tube.
7. like each described cover in the claim 1 to 6, it is characterized in that each air flue element (MAi) has the shape that is suitable for causing Venturi effect.
8. like each described cover in the claim 1 to 7, it is characterized in that each air flue element (MAi) comprises the cross section of essentially rectangular.
9. like each described cover in the claim 1 to 8, it is characterized in that said air inlet (EA) and/or said gas outlet (SA) are equipped with and are suitable for limiting the net grid (G) that exterior object gets into.
10. a casing (B) is characterized in that, it comprises, like each described protective cover (CP) in the claim 1 to 9.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0950922A FR2942367B1 (en) | 2009-02-13 | 2009-02-13 | PROTECTIVE COVER FOR PIECE (S) WITH SUCTION EFFECT AIR-PIPING ELEMENTS (S) AND CASING THEREFOR |
| FR0950922 | 2009-02-13 | ||
| PCT/FR2010/050213 WO2010092294A1 (en) | 2009-02-13 | 2010-02-09 | Protection cover for one or more parts having a suction effect air-channelling element, and related housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102450114A true CN102450114A (en) | 2012-05-09 |
Family
ID=41010849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800078044A Pending CN102450114A (en) | 2009-02-13 | 2010-02-09 | Protection cover for one or more parts having a suction effect air-channelling element, and related housing |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2397021A1 (en) |
| CN (1) | CN102450114A (en) |
| BR (1) | BRPI1005954A2 (en) |
| FR (1) | FR2942367B1 (en) |
| WO (1) | WO2010092294A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053340A (en) * | 2013-03-14 | 2014-09-17 | 通用电气公司 | Synthetic Jet Driven Cooling Device With Increased Volumetric Flow |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2744664C2 (en) * | 1977-10-04 | 1988-01-21 | Leopold 6831 Reilingen Weinlich | Dust-tight sealed housing for accommodating heat-emitting electrical equipment |
| US4365288A (en) * | 1979-03-02 | 1982-12-21 | Carr-Griff | Electric power converter for recreational vehicle |
| DE10111846A1 (en) * | 2001-03-01 | 2002-09-19 | Siemens Ag | Container for a gas-insulated electrical switchgear with a heat exchanger |
| TW200726360A (en) * | 2005-12-28 | 2007-07-01 | Benq Corp | Water-proof housing for electronic equipments |
-
2009
- 2009-02-13 FR FR0950922A patent/FR2942367B1/en not_active Expired - Fee Related
-
2010
- 2010-02-09 WO PCT/FR2010/050213 patent/WO2010092294A1/en active Application Filing
- 2010-02-09 BR BRPI1005954A patent/BRPI1005954A2/en not_active IP Right Cessation
- 2010-02-09 EP EP10708313A patent/EP2397021A1/en not_active Withdrawn
- 2010-02-09 CN CN2010800078044A patent/CN102450114A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053340A (en) * | 2013-03-14 | 2014-09-17 | 通用电气公司 | Synthetic Jet Driven Cooling Device With Increased Volumetric Flow |
| US9976762B2 (en) | 2013-03-14 | 2018-05-22 | General Electric Company | Synthetic jet driven cooling device with increased volumetric flow |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2942367B1 (en) | 2011-04-08 |
| FR2942367A1 (en) | 2010-08-20 |
| EP2397021A1 (en) | 2011-12-21 |
| WO2010092294A1 (en) | 2010-08-19 |
| BRPI1005954A2 (en) | 2018-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120509 |