CN101685332B - Cooling apparatus, electronic apparatus, and blower apparatus - Google Patents

Cooling apparatus, electronic apparatus, and blower apparatus Download PDF

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Publication number
CN101685332B
CN101685332B CN2009101761954A CN200910176195A CN101685332B CN 101685332 B CN101685332 B CN 101685332B CN 2009101761954 A CN2009101761954 A CN 2009101761954A CN 200910176195 A CN200910176195 A CN 200910176195A CN 101685332 B CN101685332 B CN 101685332B
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China
Prior art keywords
state
air outlet
heating radiator
cooling device
opening
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Expired - Fee Related
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CN2009101761954A
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Chinese (zh)
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CN101685332A (en
Inventor
宍户祐司
持田贵志
木村徹
藤枝忠臣
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Sony Corp
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Sony Corp
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Priority claimed from JP2008246645A external-priority patent/JP4650546B2/en
Priority claimed from JP2009002337A external-priority patent/JP4697307B2/en
Application filed by Sony Corp filed Critical Sony Corp
Publication of CN101685332A publication Critical patent/CN101685332A/en
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Publication of CN101685332B publication Critical patent/CN101685332B/en
Expired - Fee Related legal-status Critical Current
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • 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
    • F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
    • 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
    • G06F1/203—Cooling means for portable computers, e.g. for laptops

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

Disclosed is a cooling apparatus including a heat sink, a blower mechanism, an opening member, and a movement mechanism. The blower mechanism has a blower opening that has a predetermined area and is opposed to the heat sink. The opening member has a first opening that has an area smaller than the area of the blower opening. The movement mechanism moves the opening member so that switching between a first state and a second state is performed. The first state is a state in which the first opening is disposed between the blower opening and the heat sink, and the second state is a state in which the first opening is removed from between the blower opening and the heat sink.

Description

Cooling device, electronic installation and air-supply arrangement
The cross reference of related application
The present invention is contained in the theme of the Japanese priority patented claim submitted to Japan Office in Japanese priority patented claim 2008-246645 number submitted to Japan Office on September 25th, 2008 and on January 8th, 2009 2009-002337 number, and its full content is hereby expressly incorporated by reference.
Technical field
The present invention relates to for heating radiator generate air-flow air-supply arrangement, comprise the cooling device of heating radiator and this air-supply arrangement and the electronic installation that is equipped with this cooling device.
Background technology
In the past, along with the raising of PC (personal computer) performance, the heat increase that generates by the thermal source such as CPU becomes problem.In order to address this problem, various technology of dispersing heat have been proposed or have produced.Known a kind of heat is dispersed method, and wherein, be transferred into the heating radiator that comprises by such as the metal heat radiator of aluminium from the heat of CPU, and from heat radiator, distributed, thereby by using the warm air around the mandatory removal heat radiator of fan assembly.
But fan assembly send air by air intake opening suction fan device ambient air and to the heat radiator of heating radiator.Therefore, the dirt that fan assembly will comprise in air and dust blow to heat radiator together, and this is not desired.As a result, also pile up thereon in dust adhesion to the gap of heat radiator, has caused the problem of heating radiator cooling performance degradation.
As the technology relevant with top problem, 2005-321287 number (paragraph 0035,0050,0062 and 0063 of Japanese Patent Application Publication, and Fig. 1) (hereinafter be called patent documentation 1) and disclosed and be provided with the cooling device that has the trapezoidal heating radiator of rake at the end face of a side, the air-flow that the rotation by vane member generates is directed to rake.Conduit for limiting by the air-flow that vane member generates in one direction except air intake opening and exhausr port, also provides dust outlet.The dust that comprises in air-flow is transmitted by the rake along heating radiator, and by being discharged to the outside for the set dust outlet of conduit.
In addition, as the technology relevant with top problem, Japanese Patent Application Publication 2008-159925 number (paragraph 0036 and 0042～0045, and Fig. 3 and Fig. 4) (hereinafter being called patent documentation 2) has disclosed the cooling device that is provided with the heating radiator that comprises the first heating radiator of separately forming and the second heating radiator.Approach with the air outlet of cooling fan and to arrange and the second heating radiator that dust easily adheres to removably is incorporated in the electronic installation such as PC.The user is from PC dismounting the second heating radiator and clean it, thereby removes the dust of piling up from the second heating radiator.
Summary of the invention
But although can reduce the amount of dust that adheres to heating radiator at the cooling device disclosed in the patent documentation 1, described cooling device is the not enough top problem of removing dust that solves that is enough in also.Along with the PC increase of service time, final, dust is piled up between heat radiator.
On the other hand, in the cooling device disclosed in the patent documentation 2, the second heating radiator can be dismantled and clean from PC.But in cooling device, the user has to from PC dismounting the second heating radiator, and this is a pretty troublesome task.
In view of above-mentioned environment, expectation provides can remove the air-supply arrangement that adheres to the dust on the heating radiator automatically, comprise the cooling device of this air-supply arrangement and heat radiator and the electronic installation that is equipped with this cooling device.
According to embodiments of the invention, a kind of cooling device is provided, comprise heating radiator, wind pushing mechanism, aperture member and travel mechanism.
Wind pushing mechanism has air outlet, and this air outlet has predetermined area and relative with heating radiator.
Aperture member has the first opening, and this first opening has the area less than the area of air outlet.
Travel mechanism moves aperture member, to carry out the switching between the first state and the second state.The first state is that the first opening is arranged on the state between air outlet and the heating radiator, and the second state is the state of the first opening from being removed between air outlet and the heating radiator.
In this embodiment, under the first state, the first opening of aperture member is between air outlet and heating radiator.Because the first opening has the area less than air outlet, so by using the first opening that the area of air outlet is temporarily diminished.As a result, can locally increase from the flow velocity of the air-flow of air outlet outflow.Therefore, the dust that adheres to and be deposited on the heating radiator can be removed (dust removal pattern).
On the other hand, under the second state, the first opening of aperture member is not between air outlet and heating radiator.Therefore, under the second state, air-flow is by from whole air outlet guide radiator, thus cooling radiator (refrigerating mode).
In addition, in this embodiment, can be by travel mechanism automatically switch the first state (dust removal pattern) and the second state (refrigerating mode), the result can eliminate from such as the electronic installation dismounting heating radiator of PC and to the task of its trouble of cleaning.
In cooling device, aperture member can further have the second opening, and this second opening has the area that is approximately equal to the air outlet area.
In this case, the second state can be the second opening state relative with air outlet.
In this embodiment, under the second state, the second opening and the air outlet that have the approximately equal area with the area of air outlet are relative.By the second opening, air-flow is by from whole air outlet guide radiator, thus cooling radiator.
In cooling device, aperture member can be for having longitudinally ribbon-shaped members.
In this case, can be along ribbon-shaped members vertically in ribbon-shaped members, form as the crow flies the first opening and the second opening.
In addition, in this case, travel mechanism can be along air outlet mobile ribbon-shaped members in the vertical.
In this embodiment, by carry out the switching between the first state and the second state in the vertically mobile ribbon-shaped members with the first opening and second opening of ribbon-shaped members.In this case, ribbon-shaped members moves along air outlet, and therefore, the first opening and the second opening also move along air outlet.When the first opening moved along air outlet, moved along air outlet the position that generates powerful air-flow.As a result, powerful air-flow can be directed to the whole heating radiator relative with air outlet, can get on except dust from whole heating radiator.
In cooling device, travel mechanism can comprise the first axle, the second axle and drive source.
The first axle is connected to the end of ribbon-shaped members, and can roll and spread out ribbon-shaped members.
The second axle is provided so that the first axle and the second axle are clipped in the middle air outlet, and the second axle is connected to another end of ribbon-shaped members, and can roll and spread out ribbon-shaped members.
The drive source rotation also drives the first axle and the second axle.
In this embodiment, because ribbon-shaped members can be rolled and spread out to the first axle and the second axle, can reduce to arrange the space of ribbon-shaped members.As a result, can be with the cooling device miniaturization.
In cooling device, ribbon-shaped members can be annular.
In this case, travel mechanism can comprise a plurality of axles and drive source.
A plurality of axles support ribbon-shaped members, rotate ribbon-shaped members by a plurality of axles set around wind pushing mechanism around wind pushing mechanism simultaneously.
Drive source rotation also drives in a plurality of axles one of them.
In this embodiment, because ribbon-shaped members rotation around wind pushing mechanism, so can reduce to arrange the space of ribbon-shaped members, the result can be with the cooling device miniaturization.
In cooling device, aperture member can be for having longitudinally tabular component.
In this case, travel mechanism can be along air outlet mobile tabular component in the vertical.
In this embodiment, the tabular component with first opening is moved along air outlet, and therefore, the first opening also moves along air outlet.When the first opening moved along air outlet, also moved along air outlet the position that generates air blast.As a result, air blast can be directed to the whole heating radiator relative with air outlet, can get on except dust from whole heating radiator.
In cooling device, tabular component can comprise tooth bar in the vertical.
In this case, travel mechanism can comprise pinion wheel and drive source.
Pinion wheel and tooth bar engagement.
Drive source rotation and driving pinion.
In this embodiment, by using rack-and-pinion mechanism, tabular component is by Linear-moving, and the first opening is moved between heating radiator and air outlet.As a result, can remove the dust that adheres to and pile up at heating radiator by simple structure.
Cooling device can also comprise control device.
Control device is controlled the movement of aperture member by travel mechanism, so that the second state is periodically switched to the first state.
In this embodiment, the second state (refrigerating mode) is periodically switched to the first state (dust removal pattern), as a result, can before the dust that adheres to heating radiator and pile up thereon causes the obstruction of heat radiator, get on except dust from heating radiator.
In cooling device, wind pushing mechanism can also comprise vane member, and this vane member is by himself rotating to generate the air-flow that flows out from air outlet.
In this case, control device can be controlled the movement of aperture member, so that wherein when being performed of starting or stoping when the rotation of vane member, the second state is switched to the first state.
By this structure, can adhere to and before the dust piled up cause the obstruction of heat radiator (radiation fins), (heat sink) got on except dust from heating radiator at heating radiator.
In the situation that vane member is arranged to cooling device, cooling device can also comprise rotation counting device and rotation counting decision maker.
The rotation counting device is counted the number of revolutions of vane member.
The rotation counting decision maker judges whether the number of revolutions of counting reaches the appointment count value.
In this case, control device can be controlled the movement of aperture member, so that when number of revolutions reached the appointment count value, the second state was switched to the first state.
By this structure, can adhere to and before the dust piled up cause the obstruction of heat radiator, get on except dust from heating radiator at heating radiator.
Cooling device can also comprise time set and time decision maker.
Time set carries out timing to be switched to the second state institute elapsed time section since the first state.
The time decision maker judges whether the time period of institute's timing reaches the time period of appointment.
In this case, control device can be controlled the movement of aperture member, so that when the time period reached the time period of appointment, the second state was switched to the first state.
By this structure, can adhere to and before the dust piled up cause the obstruction of heat radiator, get on except dust from heating radiator at heating radiator.
According to a further embodiment of the invention, provide a kind of cooling device, comprised heating radiator, wind pushing mechanism, rotating member and rotating mechanism.
Wind pushing mechanism has air outlet, and this air outlet has predetermined area and relative with heating radiator.
Rotating member comprises coverage section, and this rotating member can rotate and be arranged between heating radiator and the air outlet.
Coverage section limits the area of air outlet.
Rotating mechanism rotation rotating member, thereby the switching of execution between the first state and the second state.The first state is for defining the state of the area of air outlet by coverage section, and the second state is the state that the area of air outlet is not limited by coverage section.
In this embodiment, under the first state, define the area of air outlet by the coverage section of rotating member.Therefore, the area of air outlet can temporarily be diminished.As a result, the flow velocity of the air-flow that flows out from air outlet can be increased, the dust (dust removal pattern) that adheres to and pile up at heating radiator can be removed.
On the other hand, under the second state, the coverage section that the area of air outlet is not rotated member limits.Therefore, under the second state, air-flow is by from whole air outlet guide radiator, thus cooling radiator (refrigerating mode).
In addition, in this embodiment, can automatically perform switching between the first state (dust removal pattern) and the second state (refrigerating mode) by rotating mechanism.Therefore, can eliminate from such as dismounting heating radiator the electronic installation of PC and to the task of its trouble of cleaning.
In cooling device, air outlet can have vertically.
In this case, rotating member can be around the axle rotation of extending along the longitudinal.
In this embodiment, because rotating member is around rotating along the axle of the longitudinal extension of air outlet, so the axle that extends around the short side direction along air outlet with rotating member and the situation of rotating is compared can reduce the distance between air outlet and the heating radiator.Therefore, can be with the cooling device miniaturization.
In cooling device, rotating member can comprise the first set rotating member and the second rotating member, and simultaneously, air outlet is arranged between them.
By this structure, can reduce the distance between air outlet and the heating radiator, the result can be with the cooling device miniaturization.
According to another embodiment of the invention, provide a kind of electronic installation that comprises pyrotoxin and cooling device.
Cooling device comprises heating radiator, wind pushing mechanism, aperture member and travel mechanism.
The heat that heat sink radiates transmits from pyrotoxin.
Wind pushing mechanism has air outlet, and this air outlet has predetermined area and relative with heating radiator.
Aperture member has the first opening, and this first opening has the area less than the area of air outlet.
Travel mechanism moves aperture member, thereby carries out the switching between the first state and the second state.The first state is that the first opening is arranged on the state between air outlet and the heating radiator, and the second state is the state of the first opening from being removed between air outlet and the heating radiator.
According to another embodiment of the invention, provide a kind of electronic installation that comprises pyrotoxin and cooling device.
Cooling device comprises heating radiator, wind pushing mechanism, rotating member and rotating mechanism.
The heat that heat sink radiates transmits from pyrotoxin.
Wind pushing mechanism has air outlet, and this air outlet has predetermined area and relative with heating radiator.
Rotating member comprises coverage section, and this rotating member can rotate and be arranged between heating radiator and the air outlet.
Coverage section defines the area of air outlet.
Rotating mechanism rotation rotating member, thereby the switching of execution between the first state and the second state.The first state is for defining the state of the area of air outlet by coverage section, and the second state is the state that the area of air outlet is not limited by coverage section.
According to another embodiment of the invention, provide a kind of air-supply arrangement, comprised wind pushing mechanism, aperture member and travel mechanism.
Wind pushing mechanism has air outlet, and this air outlet has predetermined area.
Aperture member has the first opening, and this first opening has the area less than air outlet area.
Travel mechanism moves aperture member, thereby carries out the switching between the first state and the second state.The first state is the state that the first opening is arranged on air outlet the place ahead, and the second state state that to be the first opening be removed from the place ahead of air outlet.
According to another embodiment of the invention, provide a kind of air-supply arrangement, comprised wind pushing mechanism, rotating member and rotating mechanism.
Wind pushing mechanism has air outlet, and this air outlet has predetermined area.
Rotating member comprises coverage section, and this rotating member is rotatable and be arranged on the place ahead of air outlet.
Coverage section defines the area of air outlet.
Rotating mechanism rotation rotating member, thereby the switching of execution between the first state and the second state.The first state is for defining the state of the area of air outlet by coverage section, and the second state is the state that the area of air outlet is not limited by coverage section.
According to another embodiment of the invention, provide a kind of cooling device, comprised heating radiator, vane member, channel member, restriction member and driving mechanism.
Heating radiator has the surface that air-flow is directed to.
Vane member produces the air-flow towards the surface.
Channel member forms stream, and air-flow passes through described stream from the vane member guide radiator.
Limit member and can limit stream.
Driving mechanism drives and limits member, thereby carries out the switching between the first state and the second state.The first state is the state that stream is not defined component limit, thereby and the second state be that stream is defined component limit and produces eddy current so that the state of described eddy current and Surface Contact.
In this embodiment, under the first state, limit member and do not limit stream, and stream is decontroled.In this case, the air-flow that generates by vane member is directed to heating radiator, thus cooling radiator (refrigerating mode).
On the other hand, under the second state, limit the component limit stream.In this case, the air-flow by stream is changed, thereby generates eddy current and it is contacted with heating radiator.Eddy current blows away the dust that adheres to and pile up at heating radiator, the result, and face is removed dust (dust removal pattern) from it.
In addition, in this embodiment, can be by using driving mechanism automatically switch the first state (refrigerating mode) and the second state (dust removal pattern).Therefore, can eliminate from such as dismounting heating radiator the electronic installation of PC and to the task of its trouble of cleaning.
Cooling device can also comprise control device, is used for the control driving mechanism, so that the first state is periodically switched to the second state.
In this embodiment, the first state (refrigerating mode) is periodically switched to the second state (dust removal pattern), as a result, can before the dust that adheres to heating radiator is piled up thereon and caused the obstruction of heat radiator, get on except dust from heating radiator.
In cooling device, vane member rotates by self can generate air-flow.
In this case, control device control driving mechanism is so that when starting the rotation of vane member, the first state is switched to the second state.
By this structure, can before the dust that adheres to heating radiator is piled up thereon and caused the obstruction of heat radiator, get on except dust from heating radiator.
In cooling device, in the situation that rotating by himself, vane member produces air-flow, control device can be controlled driving mechanism, so that when the rotation of vane member stopped, the first state was switched to the second state.
By this structure, can adhering to before dust on the heating radiator piles up thereon and cause the obstruction of heat radiator, get on except dust from heating radiator.
Vane member in cooling device rotates in the situation that produces air-flow by himself, and cooling device can also comprise rotation counting device and rotation counting decision maker.
The rotation counting device is counted the number of revolutions of vane member.
The rotation counting decision maker judges whether the number of revolutions of counting reaches the appointment count value.
In this case, control device can be controlled driving mechanism, so that when number of revolutions reached the appointment count value, the first state was switched to the second state.
By this structure, can adhering to before dust on the heating radiator piles up thereon and cause the obstruction of heat radiator, get on except dust from heating radiator.
Cooling device can also comprise time set and time decision maker.
Time set to time that is switched to the first state since the second state institute's elapsed time section carry out timing.
The time decision maker judges whether the time period of institute's timing reaches the time period of appointment.
In this case, control device can be controlled driving mechanism, so that when the time period reached the time period of appointment, the first state was switched to the second state.
By this structure, can adhering to before dust on the heating radiator piles up thereon and cause the obstruction of heat radiator, get on except dust from heating radiator.
According to another embodiment of the invention, provide a kind of electronic installation that comprises pyrotoxin and cooling device.
Cooling device comprises heating radiator, vane member, channel member, restriction member and driving mechanism.
Heating radiator has the surface that air-flow was directed to and distributed the heat that transmits from pyrotoxin.
Vane member produces the air-flow towards the surface.
Channel member forms stream, and air-flow passes through described stream from the vane member guide radiator.
Limit member and can limit stream.
Driving mechanism drives and limits member, thereby carries out the switching between the first state and the second state.The first state is the state that stream is not defined component limit, thereby and the second state be that stream is defined component limit and produces eddy current so that the state of described eddy current and Surface Contact.
According to a further embodiment of the invention, provide a kind of air-supply arrangement, comprised vane member, channel member, restriction member and driving mechanism.
Vane member produces the air-flow towards a surface of the heating radiator with surface that air-flow is directed to.
Channel member forms stream, and air-flow passes through described stream from the vane member guide radiator.
Limit member and can limit stream.
Driving mechanism drives and limits member, thereby carries out the switching between the first state and the second state.The first state is the state that stream is not defined component limit, thereby and the second state be that stream is defined component limit and produces eddy current so that the state of described eddy current and Surface Contact.
As mentioned above, according to embodiments of the invention, can provide and automatically to remove the air-supply arrangement that adheres to the dust on the heating radiator, comprise the cooling device of this air-supply arrangement and heating radiator and the electronic installation of having equipped this cooling device.
Below, in connection with accompanying drawing the preferred embodiments of the present invention being described, purpose, the feature and advantage of above and other of the present invention will be more obvious.
Description of drawings
Fig. 1 shows the skeleton view of having equipped according to the electronic installation of the cooling device of the first embodiment;
Fig. 2 is the skeleton view according to the cooling device of the first embodiment;
Fig. 3 is the top plan view according to the cooling device of the first embodiment;
Fig. 4 shows the diagram in the position of the situation under shed member that does not drive aperture member;
Fig. 5 all shows in the situation that drive the diagram of the relative position of aperture member air outlet and aperture member (adjustment opening);
Fig. 6 is the diagram that shows the relation between the flow velocity of the position coordinates of the air outlet under refrigerating mode and the dust removal pattern and the air-flow that flows out from air outlet;
Fig. 7 is the skeleton view according to the cooling device of the second embodiment;
Fig. 8 shows the stretch-out view of aperture member;
Fig. 9 is used for explanation according to the diagram of the operation of the cooling device of the second embodiment when from the forward observation air outlet of air outlet and aperture member;
Figure 10 is the skeleton view according to the cooling device of the 3rd embodiment;
Figure 11 shows the stretch-out view of aperture member;
Figure 12 is used for explanation according to the diagram of the operation of the cooling device of the 3rd embodiment when from the forward observation air outlet of air outlet and aperture member;
Figure 13 is the decomposition diagram according to the cooling device of the 4th embodiment;
Figure 14 is the skeleton view according to the cooling device 400 of the 4th embodiment;
Figure 15 is used for explanation according to the diagram of the operation of the cooling device of the 4th embodiment when observing cooling device from the side;
Figure 16 is the diagram that shows the relation between the flow velocity of the position coordinates of the air outlet under refrigerating mode and the dust removal pattern and the air-flow that flows out from air outlet;
Figure 17 is used for explanation according to the diagram of the operation of the cooling device of modification when observing cooling device from the side;
Figure 18 shows in first mode the process flow diagram about the operation of pattern switching timing;
Figure 19 shows in the second pattern the process flow diagram about the operation of pattern switching timing;
Figure 20 shows in three-mode the process flow diagram about the operation of pattern switching timing;
Figure 21 shows in four-mode the process flow diagram about the operation of pattern switching timing;
Figure 22 shows the skeleton view that is equipped with according to the electronic installation of the cooling device of fifth embodiment of the invention;
Figure 23 shows the skeleton view according to the cooling device of fifth embodiment of the invention;
Figure 24 shows the decomposition diagram according to the cooling device of fifth embodiment of the invention;
Figure 25 shows the side cross-sectional view according to the cooling device of fifth embodiment of the invention;
Figure 26 is for the schematic diagram of explanation according to the operation of the cooling device of fifth embodiment of the invention;
Figure 27 shows dust adhesion in the diagram of the state of heating radiator;
Figure 28 shows the amplification diagram of the heating radiator that has adhered to dust;
Figure 29 is the generation area that shows secondary vortex flow and the diagram of the relation between the various parameter;
Figure 30 is the diagram for the relation between the size of the amplification degree of explanation stream and secondary vortex flow, and shows the schematic model that amplifies air-flow;
Figure 31 shows and adheres to apart from x RWith finedraw gap b 0Ratio x R/ b 0With amplification degree D/b 0Between the diagram of relation;
Figure 32 shows the diagram for the proving installation of estimating the dust removal capacity;
Figure 33 shows in the situation that before the test, in the situation that the diagram that the dust removal capacity is provided and the comparison between the flow path resistance of heating radiator of dust removal capacity is not provided;
Figure 34 shows in the 5th pattern the process flow diagram about the operation of pattern switching timing;
Figure 35 shows in the 6th pattern the process flow diagram about the operation of pattern switching timing;
Figure 36 shows in the 7th pattern the process flow diagram about the operation of pattern switching timing; And
Figure 37 shows in the 8th pattern the process flow diagram about the operation of pattern switching timing.
Embodiment
Hereinafter, embodiments of the invention are described with reference to the accompanying drawings.
(the first embodiment)
Fig. 1 shows the skeleton view that is equipped with according to the electronic installation of the cooling device of this embodiment.It should be noted that in the description of this embodiment, PC on knee is used as being equipped with the example of the electronic installation of cooling device.
As shown in Figure 1, PC 101 on knee comprises upper casing 91, lower casing 92 and the hinge part 93 that upper casing 91 and lower casing 92 are rotatably connected each other.Upper casing 91 comprises the display part 94 such as liquid crystal display and EL (organic electroluminescent) display.
Lower casing 92 is included in a plurality of enter keies 95 and the touch pad 96 on the upper surface 92a, and is included in the exhausr port 97 of side surface 92b.In addition, for example, lower casing 92 is included in the air intake opening (not shown) on the basal surface 93c.
Cooling device 100 is set to close to the exhausr port 97 in the lower casing 92.
Fig. 2 shows the skeleton view according to the cooling device of this embodiment, and Fig. 3 is the top plan view of cooling device.
As shown in Figures 2 and 3, the cooling device 100 according to the embodiment of the invention comprises centrifugal type wind pushing mechanism 10, heating radiator 20 and the aperture member 30 that can move between air outlet 4 and heating radiator 20.Cooling device 100 also comprises the driving mechanism 40 that drives aperture member 30.It should be noted that in Fig. 2, the structure of cooling device 100 makes wind pushing mechanism 10, aperture member 30 and heating radiator 20 in fact get more than them and opens for convenience of explanation.
Wind pushing mechanism 10 is the centrifugal type wind pushing mechanism, and comprises the fan driving motor 5 of fan hub 1, the centrifugal type vane member 2 that can rotate in fan hub 1 and rotation and driven vane member 2.
Vane member 2 can be centered around the axle rotation of extending on the z direction of principal axis, and is rotated counterclockwise driving by the rotation of fan driving motor 5.The rotation of vane member 2 has produced the air-flow towards heating radiator 20.
Fan hub 1 comprises enterprising gas port 3 on the upper surface 1a of fan hub 1 and the lower air intake opening (not shown) on its basal surface 1c.Near the center of the upper surface 1a of fan hub 1 and basal surface 1c, enterprising gas port 3 and lower air intake opening are set respectively.By enterprising gas port 3 and lower air intake opening, wind pushing mechanism 10 ambient airs are inhaled into fan hub 1.
Fan hub 1 also is included in the air outlet (exhausr port) 4 on the side outer surface 1b.Air outlet 4 has at the rectangular shape of a direction (x direction of principal axis) for long limit.By air outlet 4, air-flow is passed to heating radiator 20.In the following description, represent the length (x direction of principal axis) of air outlet 4 by L1, and represent its height (z direction of principal axis) by H1.
Heating radiator 20 has at the rectangular shape of a direction (x direction of principal axis) for long limit, and comprises the back up pad 22 that a plurality of heat radiator 21 reach from following support heat radiator 21.Vertical (x direction of principal axis) at heating radiator 20 upward arranges a plurality of heat radiator 21 with predetermined space.Pass through the slit of heat radiator 21 by the air-flow of wind pushing mechanism generation.Heating radiator 20 is for example by making such as the metal of aluminium and copper.But the material of heating radiator 20 is not particularly limited.
For example, heating radiator 20 is thermally connected to the thermal source such as CPU set in the lower casing 92 of PC 101 on knee.
Heating radiator 20 is set to towards air outlet 4, and close to air outlet 4 (seeing Fig. 3).The length L 2 of heating radiator 20 and height H 2 are almost identical with length L 1 and the height H 1 of air outlet 4 respectively.
Aperture member 30 has in the rectangular thin plate shape of a direction (x direction of principal axis) for long limit.For example, aperture member 30 is made of metal, resin etc., but its material is not limited to this.The height H 3 of aperture member 30 be set to almost equal in or little height H 1 greater than air outlet 4, and the length L 3 of aperture member 30 is set to be about the twice of the length L 1 of air outlet 4.
Near the center of aperture member 30, form size less than the opening 31 (hereinafter, being known as adjustment opening 31) of air outlet area.In addition, vertical (the x direction of principal axis) in aperture member 30 arranges a plurality of tooth bars 32 for aperture member 30.
For example, adjust opening 31 and have rectangular shape, but its shape is not limited to this.For example, adjust opening 31 and can have circle, ellipse or polygon.
Driving mechanism 40 comprises pinion wheel 41 and motor 42.Pinion wheel 41 meshes with the tooth bar of aperture member 30.Motor 42 rotation and driving pinions 41.Motor 42 can be typical motor, but when stepper motor is used for motor 42, can control reliably the movement of aperture member 30.This also is same for employed motor among the embodiment below.
Aperture member 30 can be mobile at the x direction of principal axis between air outlet 4 and heating radiator 20 by the driving of driving mechanism 40.It should be noted that the movement that to control aperture member 30, so that aperture member 30 is mobile at the x direction of principal axis by the guide rail (not shown).
(description of operation)
Next, with the description that provides about the operation of cooling device 100.Fig. 4 is illustrated in the diagram that aperture member 30 does not have the position of the aperture member 30 in driven situation.Simultaneously, Fig. 5 is the diagram of the air outlet 4 that shows in aperture member 30 driven situations and the relative position of aperture member 30 (adjusting opening 31).It should be noted that Fig. 5 all shows the state when from the forward observation air outlet 4 of air outlet 4 and aperture member (adjusting opening 31).
As shown in Figure 4, normally, aperture member 30 does not have driven-mechanism 40 to drive, and aperture member 30 stops and being in the not state between air outlet 4 and heating radiator 20.
At first, will provide about stop and being in the description of the operation of the cooling device 100 in the situation that is not arranged on the state between air outlet 4 and the heating radiator 20 in aperture member 30.
When vane member 2 rotation, the air in the lower casing 92 of PC 101 on knee is inhaled into fan hub 1 by enterprising gas port 3 and lower air intake opening.
The air that is inhaled into fan hub 1 is accelerated by being rotated on the centrifugal direction of vane member, flows out from air outlet 4, and is directed to heating radiator 20.In this case, air outlet 4 is opened fully.Therefore, from the air-flow of air outlet 4 by the relative surperficial 20a (hereinafter, being known as apparent surface 20a) of whole guide radiators 20 and air outlet 4.
By heat radiator 21, heating radiator 20 distributes the heat that transmits from such as the pyrotoxin that arranges to the CPU of PC 101 on knee.Warm air between the heat radiator 21 is taken away from the air-flow of air outlet 4, and by the outside that is expelled to lower casing 92 to exhausr port 97 the being forced to property of lower casing 92 is set.As a result, cooled off pyrotoxin such as CPU.
It should be noted that in this manual, come the state of cooling radiator 20 to be known as refrigerating mode by the air outlet 4 of being opened fully.
Herein, because comprised dust from the enterprising gas port 3 of wind pushing mechanism 10 and the air of lower air intake opening suction lower casing 92, so the air-flow that transmits from air outlet 4 also comprises dust.Therefore, when air-flow was directed to heating radiator 20, dust also was directed to heating radiator 20 and adhered thereto.Particularly, dust is easy to adhere to and be deposited on the relative apparent surface 20a of heating radiator 20 and air outlet 4.
If refrigerating mode is held the long time section, then heat radiator 21 is stopped up by dust.As a result, the ventilation by heat radiator is obstructed, and causes the cooling performance of cooling device 100 to descend.
Next, be described in operation in aperture member 30 driven situations with reference to Fig. 5 A～Fig. 5 I.
Shown in Fig. 5 A, thereby when the rotation of starter motor 42 had also started the rotary actuation of pinion wheel 41, aperture member 30 began to be moved to the left.In this case, by the Linear-moving that has caused aperture member 30 to the rotary moving of the tooth bar 32 caused pinion wheels 41 of aperture member 30 is set, therefore, aperture member 30 begins to be moved to the left.
It should be noted that subsequently, will describe aperture member 30 driven timings in detail.
Shown in Fig. 5 B, aperture member 30 begins to enter between air outlet 4 and the heating radiator 20 from the left end of aperture member 30.
Shown in Fig. 5 C, be moved into relative with the right-hand end of air outlet 4 and when being arranged on position between air outlet 4 and the heating radiator 20, air-flow is directed to heating radiator 20 by adjustment opening 31 when adjusting opening 31.At this moment, the contact area of air outlet 4 is reduced owing to adjusting opening 31, and therefore, the flow velocity that is directed to the air-flow of heating radiator is increased by the part.As a result, the dust that adheres to and be deposited in the slit between the heat radiator 21 of heating radiator 20 can be blown away.The dust that is blown away is discharged to the outside of PC 101 on knee to the exhausr port 97 of the lower casing 92 of PC 101 on knee by setting.
It should be noted that in this manual, adjust opening 31 between air outlet 4 and heating radiator 20 and air blast is directed to heating radiator 20 by adjusting opening state is known as dust removal pattern.
Shown in Fig. 5 D and Fig. 5 E, even after the right-hand end of adjusting opening 31 arrival air outlets 4, aperture member 30 movement left also can continue, and arrives till the position relative with the left end of air outlet until adjust opening 31.
At this moment, adjust opening 31 is moved to air outlet 4 by the right-hand end from air outlet 4 between air outlet 4 and heating radiator 20 left end.In this case, adjust opening 31 and move along air outlet 4, simultaneously with air blast guide radiator 20.Therefore, the whole apparent surface 20a of heating radiator 20 can both receive air blast.As a result, can remove the dust that adheres to heating radiator 20 from whole heating radiator 20.
When adjusting the left end of opening 31 arrival air outlets 4 (seeing Fig. 5 E), the reverse rotation of starter motor 42, thereby the reverse rotation of startup pinion wheel, the result, aperture member 30 beginnings are mobile to the right.
Shown in Fig. 5 F and Fig. 5 G, adjust opening 31 and between air outlet 4 and heating radiator, shift to its right-hand end from the left end of air outlet 4.That is, adjust opening 31 with above-mentioned situation under the direction of opposite direction on (that is, from the left end of air outlet 4 to its right-hand end) mobile, and air blast is directed to whole heating radiator 20, thereby integrally removes the dust that adheres to heating radiator 20.
Shown in Fig. 5 H, even after the right-hand end of adjusting opening 31 arrival air outlets 4, aperture member 30 also continues in positive x direction mobile.
Shown in Fig. 5 I, when aperture member 30 is moved into aperture member 30 not towards the position in air outlet the place ahead, stop by motor 42 rotary actuation pinion wheels 41, thereby stop the movement of aperture member 30.When aperture member 30 was moved into position shown in Fig. 5 I, air-flow was by from whole air outlet 4 guide radiators 20, thus cooling radiator 20 (refrigerating mode) again.
In the description of reference Fig. 5 A～Fig. 5 I, show aperture member 30 to-and-fro movement situation once between air outlet 4 and heating radiator 20.But reciprocating number of times is not limited to 1 time, and aperture member 30 can to-and-fro movement more than twice.By this operation, can get on except dust from heating radiator 20 reliably.
As mentioned above, can get on except dust from heating radiator 30 by mobile aperture member 30 according to the cooling device 100 of this embodiment, therefore, can prevent that heat radiator 21 from being stopped up by dust, and can prevent cooling performance deteriorated of cooling device 100.
In addition, the dust that adheres to heating radiator 20 can be automatically removed according to the cooling device 100 of this embodiment, therefore, from PC 101 on knee, dismantling heating radiator 20 and cleaning the trouble of heating radiator 20 of task can be eliminated.
In addition, in this embodiment, can be by powerful air-flow guide radiator 20 being removed the dust on it, and need not increase the rotational speed of the vane member 2 of wind pushing mechanism 10.Therefore, can suppress the excessive increase of cooling device 100 power consumptions.In addition, even when the power of the fan driving motor 5 of rotating vane member 2 during very little and very difficult generation air blast, also can be by air blast guide radiator 20 be got on except dust from heating radiator 20.
Next, with the dust removal capacity of describing in further detail according to the cooling device 100 of this embodiment.
In order to estimate the dust removal capacity, the present inventor has measured by the air outlet 4 of being opened fully (under refrigerating mode) flow velocity of the air-flow that imports from air outlet 4, and has measured in the situation that import the flow velocity of the air-flow of air-flows (under dust removal pattern) by adjusting opening 31.
In order to estimate the dust removal capacity, relatively in the situation that air outlet 4 opened fully (under refrigerating mode) air-flow flow velocity and at the flow velocity that makes the air-flow of (under dust removal pattern) in the very little situation of the apparent area of air outlet 4 by adjusting opening 31.
The length L 1 and the height H 1 that are used for the air outlet 4 of evaluation dust removal capacity are set to respectively 70mm and 10mm, and adjust the width of opening 31 and highly be set to respectively 10mm and 10mm.In addition, the length L 2 of heating radiator 20, height H 2, and the degree of depth be set to respectively 70mm, 10mm and 18mm, and the interval between the heat radiator 21 is set to 1mm.
In order to measure the flow velocity of air-flow, use by Kanomax Japan the Climomaster Model 6542 (registered trademark) of Inc. manufacturing (hereinafter, simply being called wind gage).
Under the state that air outlet 4 is opened fully, distance air outlet 4 left end 10mm, 15mm, 20mm, 25mm ..., the position of 60mm measures the flow velocity of the air-flow under the refrigerating mode.Particularly, by in each measuring position (10,15 ... 60) on the set wind gage in the center of the air outlet 4 located the end of set probe measure in each measuring position (10,15 ... 60) flow velocity located.
Simultaneously, under dust removal pattern, adjust each measuring position (10 in opening 31 and the air outlet 4,15, ... 60) relatively, and by the end at the probe of the set wind gage in the center of adjusting opening 31 measure in each measuring position (10,15 ... 60) flow velocity located.
Fig. 6 A show in refrigerating mode and dust removal pattern the coordinate of a plurality of positions in the air outlet 4 and the flow velocity of the air-flow of deriving from air outlet between the form of relation.
Fig. 6 B is at the curve map that concerns shown in Fig. 6 A.In Fig. 6 B, transverse axis represents the coordinate (mm) of the position in the air outlet 4 on the x direction of principal axis, and Z-axis represents the flow velocity (m/s) of the air-flow of deriving from air outlet 4.
In addition, in Fig. 6 B, by a dotted line and the represented curve of rectangular dots show position in the air outlet 4 under refrigerating mode and the relation between the flow velocity.On the other hand, in Fig. 6 B, show position in the air outlet 4 under dust removal pattern and the relation between the flow velocity by solid line and the represented curve of Diamond spot.
Shown in Fig. 6 A and Fig. 6 B, to compare with the situation that air outlet 4 is opened fully, the flow velocity that flows through the air-flow of adjusting opening 31 is significantly increased.
As the result of the measurement of being undertaken by the present inventor, can find, when the flow velocity of air-flow is approximately 10m/s, stops up the dust of heat radiator 21 and removed between the heat radiator by very light.Shown in Fig. 6 A and Fig. 6 B, under dust removal pattern, each position coordinates (10,15 ... 60) flow velocity located surpasses 10m/s, thereby determines and can undesirably the dust that adheres on the heat radiator be removed.
In Fig. 6 A and Fig. 6 B, be characterised in that especially, in the situation that air outlet 4 is opened flow velocity fully is lower, the flow velocity that then flows through the air-flow of adjusting opening 31 is higher.This shows, in the position that more may pile up dust that causes owing to the low flow velocity under the state of opening fully at air outlet, just can more strongly remove dust.
As mentioned above, in the situation that air outlet 4 is opened the higher fact of the lower flow velocity that then flows through the air-flow of adjusting opening 31 of flow velocity fully owing to the more fact for increasing of lower then pressure that becomes of flow velocity under the state of being opened fully at air outlet 4.Therefore, when pressurized air stream flow through adjustment opening 31, it is higher that flow velocity becomes.
(the second embodiment)
Next, second embodiment of the present invention will be described.It should be noted that second to reach in the description of embodiment subsequently, represent to have with the first embodiment the member of same structure and function by identical reference number or symbol, and will omit or simplify description of them.
Fig. 7 shows the skeleton view according to the cooling device of the second embodiment.It should be noted that for convenience of explanation structure of cooling device 200, in fact get more than it in the air outlet 4 of wind pushing mechanism 10 and the slit between the heating radiator 20 and open.
As shown in Figure 7, comprise wind pushing mechanism 10 with air outlet 4 and the heating radiator 20 that is arranged on the position relative with air outlet 4 according to the cooling device 200 of the second embodiment.In addition, cooling device 200 also comprises the first and second incorporating sections 60 and 70 that have flexible aperture member 50 and can roll and take in aperture member 50 and spread out aperture member 50.Air outlet 4 is closer to each other with heating radiator, is provided with aperture member 50 therebetween.
The first incorporating section 60 is arranged on the position close to the 4c of left side edge section of air outlet 4, and the second incorporating section 70 is arranged on the position close to the right edge edge 4d of air outlet.In other words, the first incorporating section 60 and the second incorporating section 70 are set to upward air outlet 4 is clipped in the middle at vertical (the x direction of principal axis) of air outlet 4.
The first set incorporating section 60 comprises the first driving mechanism 64 that drives aperture member 50 and takes in the first housing 61 of rolled-up aperture member 50 in the left side of air outlet 4.The first driving mechanism 64 comprises the first main shaft 62 and the rotation that can be centered around the axle rotation of extending on the z direction of principal axis and the first motor 63 that drives the first main shaft 62.The first main shaft 62 is connected to the left end of aperture member 50.For example, the first housing 61 has cylindrical shape, but its shape is not limited to this.
Similarly, the second incorporating section 70 that arranges in the place, right side of air outlet 4 comprises the second driving mechanism 74 and takes in the second housing 71 of rolled-up aperture member 50.The second driving mechanism 74 has the second main shaft 72 and the second motor 73.The second main shaft 72 is connected to the right-hand end of aperture member 50.
Fig. 8 shows the stretch-out view of aperture member 50.
As shown in Figure 8, aperture member 50 is long limit in a direction (x direction of principal axis).Aperture member 50 is banded, and for example forms by paper, cloth or such as the flexible resin that has of film.But the material of aperture member 50 is not limited to this, as long as have flexibility and can be rolled-up, can use arbitrarily material.
Aperture member 50 comprises having than the air outlet 4 adjustment opening 51 of small size more.Aperture member 50 also comprises the first and second openings 52 and 53 (hereinafter, being known as open), they each have an area almost identical with air outlet 4.That is, aperture member 50 has three openings, particularly, in the center of aperture member 50 formed adjustment opening 51, at formed the first open 52 in left side of adjusting opening 51 and at formed the second open 53 in right side of adjusting opening 51.
Have respectively height h1 and the width w1 almost identical with the height H 1 of air outlet 4 and length L 1 at the first set open 52 of left side of adjusting opening 51.Similarly, have respectively height h2 and the width w2 almost identical with the height H 1 of air outlet 4 and length L 1 at the second set open 53 of right side of adjusting opening 51.
Being pre-arranged as almost the length L 1 with air outlet 4 is identical apart from d1 between the right-hand end of the first open 52 and the left end of adjusting opening 51.Similarly, being pre-arranged as almost the length L 1 with air outlet 4 is identical apart from d2 between the left end of the second open 53 and the right-hand end of adjusting opening 51.
By the driving of the first driving mechanism 64 and the second driving mechanism 74, aperture member 50 can move along air outlet 4.
(description of operation)
Next, will provide about the description according to the operation of the cooling device 200 of the second embodiment.Fig. 9 A～Fig. 9 G is the diagram that is used for description operation when from the forward observation air outlet 4 of air outlet 4 and aperture member 50.
Shown in Fig. 9 A, aperture member 50 stops at the relative position of the first open 52 and air outlet 4.In this case, air outlet 4 is opened fully, and passes through the whole apparent surface 20a of the first open 52 guide radiators 20 from the air-flow that air outlet 4 transmits, thus cooling radiator (refrigerating mode).
When starting the driving of the first motor 61, the rotary actuation of the first main shaft 62 is activated, and subsequently, starts the roll up operation of aperture member 50 by the first main shaft 62.When the first main shaft 62 was rotated and drives, the second main shaft 72 was together with being rotated, thereby spread out rolled-up aperture member 50.In this case, typically, do not drive the second motor 73, but can make it be actuated to the mandatory aperture member 50 that spreads out yet.
Shown in Fig. 9 B, when the first main shaft 62 began to roll aperture member 50, aperture member 50 beginnings were mobile to the left, and moved with this, and 52 beginnings of the first open are mobile to the left.
Shown in Fig. 9 C, when the first open 52 was moved into the position in the place ahead outside of air outlet 4, the adjustment opening 51 of exporting by the second main shaft 72 is moved into adjusted opening 51 position relative with the right-hand end of air outlet 4.When adjust opening 51 export the place ahead of air outlet 4 to and be arranged on air outlet 4 and heating radiator 20 between the time, air blast is directed to heating radiator 20 (dust removal pattern).As a result, the dust that adheres to and be deposited on the heat radiator 21 can be blown away.
Shown in Fig. 9 D, adjust opening 51 and move along air outlet 4, simultaneously with powerful air-flow guide radiator 20.Therefore, the dust that adheres on the heating radiator 20 can be removed from whole heating radiator 20.
Shown in Fig. 9 E, when adjusting opening 51 and move to the outside in the place ahead of air outlet 4, the second open 53 arrives the place ahead of air outlet 4 from the right side of air outlet 4.
Shown in Fig. 9 F, the second open 53 is mobile to the left along air outlet.
Shown in Fig. 9 G, when the second open 53 is moved into the position relative with air outlet 4, stops the driving of the first motor, thereby stop the movement of aperture member 50.When the movement of aperture member 50 stopped, the air-flow that transmits from air outlet 4 was by the whole apparent surface 20a of the second open 53 guide radiators 20, thus cooling radiator (refrigerating mode).
Remove in the situation of pattern by mobile aperture member 50 the second open 53 and air outlet 4 relative states being switched to dust, the second main shaft 72 is rotated and drives, thereby aperture member 50 is mobile to the right.It should be noted that operation in the case is identical with the operation that is moved to the left aperture member 50, therefore, will omit detailed description.
In the description of reference Fig. 9 A～Fig. 9 G, show the in one direction situation of mobile aperture member 50.But the movement of aperture member is not limited to this, and aperture member 50 can be reciprocated.In addition, aperture member can be reciprocated more than twice certainly.
In addition, in the description of the second embodiment, the number of adjusting opening 51 is set to 1, but is not limited to this.Aperture member 50 can comprise plural adjustment opening 51.In addition, aperture member 50 can also comprise plural open.That is, in aperture member 50, as long as without prejudice to main idea of the present invention, can suitably change the number of adjustment opening and open and the distance between adjustment opening and the open.
In a second embodiment, the first incorporating section 60 and the second incorporating section 70 can be rolled aperture member 50 and take in it, and the result can make the space that aperture member 50 is set diminish.By this structure, can be with cooling device 200 miniaturizations.It should be noted that other effects are identical with the first embodiment, and will omit the description to it.
(the 3rd embodiment)
Next, with the cooling device of describing according to third embodiment of the invention.
Figure 10 shows the skeleton view according to the cooling device 300 of the 3rd embodiment.
As shown in figure 10, comprise wind pushing mechanism 10 with air outlet 4, be arranged on the heating radiator 20 of the position relative with air outlet 4 and around the set annular opening member 80 of wind pushing mechanism 10 according to the cooling device 300 of the 3rd embodiment.Cooling device 300 also is included in the first to the 5th main shaft 85～89 that arranges around the wind pushing mechanism 10.
The first to the 5th main shaft 85～89 support openings members 80, thus around wind pushing mechanism 10, rotate aperture member 80.The first main shaft 85 has cylindrical shape, and its radius is greater than the radius of the second to the 5th main shaft 86～89, and is electrically connected to motor 84.The first main shaft 85 and motor 84 have consisted of the driving mechanism 90 that drives aperture member 80.
Figure 11 shows the stretch-out view of aperture member 80.
As shown in figure 11, aperture member 80 has three openings,, adjusts opening 81 and 82 and open 83 that is.Each that adjust opening 81 and 82 has the area less than air outlet 4, and open 83 has the area almost identical with air outlet 4.Aperture member 80 is banded ring part, and for example makes by paper, cloth or such as the flexible resin that has of film.But as long as have flexibility and can be by ring rotation, aperture member 80 can be made by material arbitrarily.
Aperture member 80 has the length L 4 almost identical with the length of the side outer surface 1b of wind pushing mechanism 10.Open 83 has respectively height h1 and the width w1 almost identical with the height H 1 of air outlet 4 and length L 1.The right-hand end of open 83 and first is adjusted and to be set to apart from d2 that almost the length L 1 with air outlet 4 is identical between the left end of the right-hand end of adjusting opening 81 apart from d1 and first and the second adjustment opening 82 between the left end of opening 81.In addition, be set to also apart from d3 that almost the length L 1 with air outlet 4 is identical between the left end of the second right-hand end of adjusting opening 82 and open 83.
(description of operation)
Next, with the operation of describing according to the cooling device 300 of third embodiment of the invention.Figure 12 A～Figure 12 I is the diagram that is used for description operation when from the forward observation air outlet 4 of air outlet 4 and aperture member 80.
Shown in Figure 12 A, under refrigerating mode, open 83 stops at the position relative with air outlet 4.The air-flow that flows out from air outlet 4 is by the whole apparent surface 20a of open 83 guide radiators 20.
When the driving of starter motor 84, the rotary actuation of the first main shaft 85 is activated, and subsequently, aperture member 80 is turned clockwise around wind pushing mechanism 10.Shown in Figure 12 B, startup turns clockwise, thereby has started being moved to the left of aperture member 80, and along with this moves, has started being moved to the left of open 83.
Shown in Figure 12 C, when open 83 moved to the outside in air outlet 4 the place aheads, first adjusts opening 81 moved to the position relative with the right-hand end of air outlet 4.When first adjust opening 81 move to the place ahead of air outlet 4 and be arranged on air outlet 4 and heating radiator 20 between the time, air blast is directed to heating radiator 20 (dust removal pattern).
Shown in Figure 12 D, first adjusts opening 81 moves along air outlet 4, simultaneously with air blast guide radiator 20.Shown in Figure 12 E, when the first adjustment opening 81 moved to the outside in air outlet 4 the place aheads, second adjusts opening 82 moved to the position relative with the right-hand end of air outlet 4.Shown in Figure 12 F, second adjusts opening 82 moves along air outlet 4, simultaneously, and with air blast guide radiator 20.
Shown in Figure 12 G, when second adjusted opening 82 and move to the outside in air outlet 4 the place aheads, the open 83 that moves around wind pushing mechanism 10 arrived the place ahead of air outlet 4 from its right side.
Shown in Figure 12 H, open 83 is moved to the left along air outlet 4.Subsequently, shown in Figure 12 I, when open 83 moves to the position relative with air outlet 4, stop the driving of motor 84, thereby stop the movement of aperture member 80.When stopping aperture member 80 mobile, the air-flow that flows out from air outlet 4 is by the whole apparent surface 20a of open 83 guide radiators 20, thus cooling radiator (refrigerating mode).
In the superincumbent description, show around the turn clockwise situation of aperture member 80 of wind pushing mechanism 10.But aperture member 80 also can be rotated counterclockwise.In addition, number of revolutions is not limited to 1 time, and aperture member 80 can be around wind pushing mechanism 10 rotations more than twice.
In the description of the 3rd embodiment, aperture member 80 is set to have two and adjusts opening.But the number of adjusting opening can be for more than 1 or 3.In addition, aperture member 80 is set to have an open, still, can have two above opens.That is, as long as without prejudice to main idea of the present invention, can suitably change according to the size of wind pushing mechanism 10 number of adjustment opening and open and the distance between adjustment opening and the open.
In the 3rd embodiment, aperture member 80 can be around air outlet 4 rotations, and the result can make the space that aperture member 80 is set diminish.Therefore, can be with cooling device 300 miniaturizations.It should be noted that other effects are identical with the first embodiment, therefore, omit the description to it.
(the 4th embodiment)
Next, the fourth embodiment of the present invention will be described.
Figure 13 is the decomposition diagram according to the cooling device 400 of fourth embodiment of the invention, and Figure 14 is the skeleton view according to the cooling device 400 of the 4th embodiment.It should be noted that in Figure 14, for the ease of showing, omitted cap 154.
Such as Figure 13 and shown in Figure 14, comprise the wind pushing mechanism 10 with air outlet 4 and the heating radiator 20 that is oppositely arranged with air outlet 4 according to the cooling device 400 of the 4th embodiment.Cooling device 400 also comprises rotating member 130, driving mechanism 140 and brace table 150.Rotating member 130 can rotate between air outlet 4 and heating radiator.Driving mechanism 140 drives rotating member 130.Brace table 150 supports wind pushing mechanism 10, heating radiator 20 and rotating member 130.
Between air outlet 4 and heating radiator 20, rotating member 130 is set.Rotating member 130 has in the rectangular thin plate shape of a direction (x direction of principal axis) for long limit, and the length L 5 of rotating member is set to, and almost the length L 1 with air outlet 4 is identical.An end on the short side direction of rotating member 130 is connected to main shaft 141, and can be around main shaft 141 rotations.By the rotation of rotating member 130, the contact area of air outlet 4 is diminished.For example, the material of rotating member 130 can be resin or metal, but is not specially limited.
Driving mechanism 40 comprises the main shaft 141 that can be centered around the axle rotation of extending on the x direction of principal axis and rotates the also motor 142 of drive shaft 141.
Main shaft 141 can be in the position rotation relative with the edge part 4a (hereinafter, being known as lower edge portion 4a) of the downside of air outlet 4.By this structure, cause that rotating member 130 rotates around being arranged on the axle of the position relative with lower edge portion 4a.
Brace table 150 comprises bottom 151, the first side wall section 152, the second side wall portion 153 and cap 154.Bottom 151 is from following support rotating member 130 and heating radiator 20.151 right side forms sidewall in the bottom in the first side wall section 152, and the second side wall portion 153 151 left side forms sidewall in the bottom.
The first side wall section 152 has the through hole 155 that runs through the first side wall section 152.In through hole 155, inserted main shaft 141.
The bottom 151 that heating radiator is 20 supported 150, the first side wall section 152, the second side wall portion 153 and cap 154 surround, and are fixed to brace table 150.In addition, wind pushing mechanism 10 is fixed near the brace table 150 the air outlet 4.Brace table 150 supports wind pushing mechanism 10, rotating member 130 and heating radiator 20, and adjusts the air-flow that flows out from air outlet 4, so that air-flow is directed to heating radiator 20 (y direction of principal axis).
(description of operation)
Next, will provide about the description according to the operation of the cooling device 400 of the 4th embodiment.Figure 15 A and Figure 15 B are the diagrams that is used for description operation when observing cooling device from the side.
Shown in Figure 15 A, under refrigerating mode, rotating member 130 stops as parallel with surface level.The whole apparent surface 20a of the air-flow guide radiator 20 that flows out from air outlet 4.
Shown in Figure 15 B, under dust removal pattern, carry out the rotary actuation of main shaft 141 by motor 142, rotating member 130 rotations.In this case, rotating member 130 is centered around and is extended, is arranged on the axle of the position relative with lower edge portion 4a on the longitudinally direction of air outlet 4 and rotate.For example, rotating member 130 stops several seconds under the state with 40 degree overturning angles.As a result, make the area of air outlet 4 temporarily become very little, therefore, powerful air-flow can be directed to heating radiator 20, and can get on except dust from heating radiator 20.Therefore, can prevent that heat radiator 21 from being stopped up by dust, and can prevent that the cooling performance of cooling device 400 is deteriorated.Herein, as mentioned above, because rotating member 130 has the length identical with air outlet 4, so can get on except dust from whole heating radiator 20.
In addition, because cooling device 400 can be removed the dust that adheres on the heating radiator 20 automatically, so can eliminate from PC on knee 101 dismounting heating radiators 20 and to the task of its trouble of cleaning.
In addition, just can get on except dust from heating radiator 20 by introducing air blast, and need not increase the rotational speed of the vane member 2 of wind pushing mechanism 10.Therefore, can suppress the excessive increase of the power consumption of cooling device 400.In addition, though very little and when being difficult to generate air blast when the power of the fan driving motor 5 of rotating vane member 2, also can be by air blast guide radiator 20 be got on except dust from heating radiator 20.
In the description of reference Figure 15, rotating member 130 stops at rotating member 130 about the position at surface level inclination 40 degree angles.But, can be less than or greater than 40 degree about the inclination angle of surface level.In addition, in the superincumbent description, rotating member stops to be set to several seconds for the time period of the state that tilts, but also can be set to a few minutes.
Next, with the dust removal capacity of more describing in detail according to the cooling device 400 of the 4th embodiment.
With with estimate the dust removal capacity according to the identical mode of the evaluation of the dust removal capacity of the cooling device 100 of the first embodiment.That is, by relatively when air outlet 4 is opened fully the flow velocity of the air-flow of (under the refrigerating mode) make the surface area of air outlet 4 flow velocity of the air-flow of hour (under the dust removal pattern) that becomes more estimate the dust removal capacity with utilizing rotating member 130.
The measuring condition of the flow velocity of the air-flow under dust removal pattern is as follows.Rotating member 130 stops at the position at rotating member 130 inclinations 40 degree angles, and the height H 1 (10mm) of air outlet is decreased to 2mm significantly.The measuring position of air-flow be arranged on the top of rotating member 130 coordinate position (10,15 ... and 60) locate.It should be noted that other measuring conditions of air-flow with identical with reference to the described situation of Fig. 6, therefore, with the description of omitting it.
Figure 16 A shows the form of the relation between the flow velocity of the position coordinates of the air outlet 4 under refrigerating mode and the dust removal pattern and the air-flow that flows out from air outlet 4.
Figure 16 B shows the curve map of the relation shown in Figure 16 A.In Figure 16 B, by a dotted line and the represented curve of rectangular dots show the position in the air outlet 4 and the relation between the flow velocity under refrigerating mode, and show the position in the air outlet 4 and the relation between the flow velocity under dust removal pattern by solid line and the represented curve of triangle form point.
From Figure 16 A and Figure 16 B, can find, compare with the situation that air outlet 4 is opened fully, by rotating member 130 flow velocity in the situation that the area of air outlet 4 becomes less be increased.In addition, in the situation that use rotating member 130, as in the situation of using aperture member 30 (aperture member 50,80), the flow velocity under the state that air outlet 4 is opened fully is lower, and the flow velocity of the air-flow under refrigerating mode is higher.This shows, in the position that more may pile up dust that causes owing to the low flow velocity under the state of opening fully at air outlet 4, just can more strongly remove dust.。
(modification)
Next, with the modification of describing according to the cooling device 400 of the 4th embodiment.Figure 17 A and Figure 17 B show the side view for the cooling device of explanation modification.
Figure 17 A shows the first modification.Shown in Figure 17 A, can be around being arranged on the position relative with the center of air outlet 4 and rotating at the axle of longitudinal direction (x direction of principal axis) extension of air outlet 4 according to the rotating member 130 of the cooling device 500 of the first modification.Rotating member is around being arranged on the axial upper of the position relative with the center of air outlet 4 or being rotated down.By this structure, make the contact area of air outlet 4 become less, and air blast is directed to heating radiator 20, the result can therefrom remove dust.
In the description of reference Figure 17 A, rotating member 130 can rotate around the axle of the center that is arranged on air outlet 4, but is not limited to this.Rotating member 130 can rotate around being arranged on the axle of the position relative with the upper edge 4b of air outlet 4.
Figure 17 B shows the second modification.Shown in Figure 17 B, be provided with the first and second rotating members 131 and 132 according to the cooling device 600 of the second modification, so that air outlet 4 is arranged between two rotating members 131 and 132.The first rotating member 131 can rotate around being arranged on the axle of the position relative with the lower edge portion 4a of air outlet 4, and the second rotating member 132 can rotate around being arranged on the axle of the position relative with the upper edge 4b of air outlet.By this way, by two rotating members 131 and 132 are set, can reduce the distance between air outlet 4 and the heating radiator 20.As a result, can be with cooling device 400 miniaturizations.
In the 4th embodiment, rotating member 130 can be centered around the axle that extends on vertical (the x direction of principal axis) of air outlet 4 and rotate.But rotating member 130 also can replace with the upper axle that extends of the short side direction (y direction of principal axis) that can be centered around air outlet and rotate.
(about the first mode of the switching timing between refrigerating mode and dust removal pattern)
Next, with the description that provides about the first mode of the switching timing between refrigerating mode and dust removal pattern.Although will describe subsequently, the pattern relevant with switching timing between refrigerating mode and the dust removal pattern can be applied in the above-mentioned cooling device 100～400 any one, for convenience of description, use cooling device 100 is as an example.
Figure 18 shows the process flow diagram about the operation of the first mode of pattern switching timing.It should be noted that in the case, CPU is used as the control system of cooling device 100.
As shown in figure 18, the CPU of cooling device 100 determines whether the driving enabling signal (step 101) of having inputted fan driving motor 5.When input does not drive enabling signal (in the step 101 no), CPU determines whether the driving enabling signal of having inputted fan driving motor 5 again.In this case, air outlet 4 is opened fully, and heating radiator 20 be cooled (refrigerating mode).
For example, when from such as the electronic installation of PC 101 on knee, exporting the driving enabling signal of fan driving motor 5, drive the CPU that enabling signal is input to cooling device 100.
When the driving enabling signal of input fan driving motor 5 (being in the step 101), CPU begins drive fan drive motor 5 (step 102).When starting the driving of fan driving motor, the rotation of vane member 2 is activated, and transmits air-flow from air outlet 4.
Next, CPU begins drive motor 42, and the movement (step 103) of control aperture member 30.When mobile aperture member 30, adjust opening 31 and move along air outlet 4, simultaneously with air blast guide radiator 2, thereby dust is blown away (referring to Fig. 5) (dust removal pattern) from whole heating radiator 20.
Make aperture member 30 between air outlet 4 and heating radiator to-and-fro movement once (or repeatedly) afterwards, CPU stops the driving of motor 42 and the movement (step 104) of aperture member 30.When aperture member 30 stopped, air outlet 4 was opened fully, and heating radiator 20 be cooled (refrigerating mode).
When CPU stops the driving of motor, process and again return step 101, and repeat step subsequently.
By top processing, can periodically refrigerating mode be switched to dust and remove pattern.Therefore, can adhere to dust on the heating radiator pile up thereon and cause the obstruction of heat radiator before get on except dust from heating radiator.
(about the second pattern of the switching timing between refrigerating mode and dust removal pattern)
Next, with the description that provides about the second pattern of the switching timing between refrigerating mode and dust removal pattern.Figure 19 shows the process flow diagram of the operation of the second pattern.
As shown in figure 19, CPU determines whether the expiry notification signal (step 201) of having inputted fan driving motor 5.When not inputting the expiry notification signal (in the step 201 no), CPU again determines whether and has inputted the expiry notification signal.In this case, air outlet 4 is opened fully, and heating radiator 20 be cooled (refrigerating mode).
When having inputted the expiry notification signal (being in the step 201), CPU does not stop fan driving motor 5 at once, but beginning drive motor 42 is controlled the movement (step 202) of aperture member 30.When starting aperture member 30 mobile, adjustment opening 31 is arranged between air outlet 4 and the heating radiator 20, thereby blows away dust (dust removal pattern) from heating radiator 20.
Next, CPU stops the driving (step 203) of motor 42, and stops the driving (step 204) of fan driving motor 5.
By top processing, also can periodically get on except dust from heating radiator 20.Therefore, can obtain the effect identical with first mode.
(about the three-mode of the switching timing between refrigerating mode and dust removal pattern)
Next, with the description that provides about the three-mode of the switching timing between refrigerating mode and dust removal pattern.Figure 20 shows the process flow diagram of the operation of three-mode.
CPU determines whether that the driving of the motor 42 of rotation is stopped (step 301).That is, CPU determines whether that dust removal pattern is switched to refrigerating mode and has started refrigerating mode.When the driving of motor 42 of rotation is stopped (being in the step 301), the timer of CPU counter is set to out, and begins counting with the count value that predetermined time interval was generated.For counter, can use the counter that is exclusively used in cooling device 100, perhaps can use the counter that is equipped to such as the electronic installation of PC 101 on knee.
Next, CPU judges whether count value reaches designated value (step 303).Designated value is corresponding to certain time period (for example, a week), but is not limited to this.
When count value reaches designated value (being in the step 303), that is, begin through certain time period (for example, a week) from starting refrigerating mode, CPU judges fan driving motor 5 driven (step 304).
In fan driving motor 5 driven situations (being in the step 304), CPU drive motor 42 is also controlled the movement (step 305) of aperture member 30, after this, stops the driving (step 306) (dust removal pattern) of motor 42.
On the other hand, do not have in driven situation at fan driving motor when count value reaches designated value 5 (in the step 304 no), for example, CPU determines whether the driving signal (step 307) of having inputted fan driving motor 5 from the electronic installation such as PC 101 on knee.
When having inputted the driving signal of fan driving motor 5 (being in the step 307), CPU drive fan drive motor 5 (steps 308), after this, the driving (step 305) of starter motor 42.That is, do not have in driven situation at fan driving motor when count value reaches designated value 5, after the driving signal of input fan driving motor 5, CPU drive motor 42.
When the driving of motor 42 is stopped (step 306), that is, when starting refrigerating mode, cpu reset timer (step 302), and restart counting by counter.
By top processing, also can periodically refrigerating mode be switched to dust and remove pattern.
(about the four-mode of the switching timing between refrigerating mode and dust removal pattern)
Next, with the description that provides about the four-mode of the switching timing between refrigerating mode and dust removal pattern.Figure 21 shows the process flow diagram of the operation of four-mode.
As shown in figure 21, CPU determines whether whether the driving of the motor 42 of rotation is stopped (step 401), and judges whether refrigerating mode is activated.
When the driving of the motor 42 that stops the rotation and when starting refrigerating mode (being in the step 401), CPU inputs the rotating signal from fan driving motor 5, and begins by usage counter the number of revolutions of fan driving motor 5 to be counted (step 402).
Next, CPU judges whether the count value of number of revolutions reaches designated value (step 403).For example, designated value is set to 1,000,000, but is not limited to this.
When count value reaches designated value (being in the step 403), that is, when the number of revolutions of vane member 2 reaches predetermined number of times (for example, 1,000,000 times), the driving (step 404) of CPU starter motor 42, and the movement of control aperture member 30.After this, CPU stops the driving (step 405) of motor, the number of revolutions that resets, and restart the number of revolutions of fan driving motor 5 is counted (step 402).
By top processing, also can periodically refrigerating mode be switched to dust and remove pattern.
Top embodiment and pattern can be carried out various modifications.
For example, in order to ensure the control of the rotation of aperture member 30,50 and 80 movement or rotating member 130, can use optical sensor or magnetic sensor.
In addition, in the description of reference Fig. 1, PC 101 on knee is used as being equipped with the example of cooling device 100,200,300 or 400 electronic installation, but electronic installation is not limited to this.The example of electronic installation comprises desktop PC, audio-visual equipment, projector, game machine, robot device etc.
In the above embodiments, drive aperture member with motor, but also can replace with solenoid.
(the 5th embodiment)
Figure 22 shows the skeleton view that is equipped with according to the electronic installation of the cooling device of this embodiment.It should be noted that in the description of this embodiment, use PC on knee as the example of the electronic installation of having equipped cooling device.In addition, more clear understandable in order to make accompanying drawing in some cases, the accompanying drawing that is used for the following describes not is to show physical size.
As shown in figure 22, PC 101 on knee comprises upper casing 1091, lower casing 1092 and rotatably makes upper casing 1091 and lower casing 1092 hinge parts 1093 connected to one another.Upper casing 1091 comprises the display part 1094 such as liquid crystal display and EL (electroluminescence) display.
Lower casing 1092 comprises a plurality of enter keies 1095 and touch pad 1096 at upper surface 1092a, and comprises exhausr port 1097 at side surface 1092b.In addition, for example, lower casing 1092 comprises the air intake opening (not shown) at basal surface 1093c.
Lower casing 1092 comprises the control circuit board (not shown) that is equipped with on it such as the circuit unit of CPU.
Cooling device 1100 is set to close to the exhausr port 1097 in the lower casing 1092.
Figure 23 is the skeleton view according to the cooling device of this embodiment, and Figure 24 is the decomposition diagram of cooling device.Figure 25 is the side cross-sectional view of cooling device.
Such as Figure 23～shown in Figure 25, comprise heating radiator 1060 and generate air-supply arrangement 1050 towards the air-flow of heating radiator 1060 according to the cooling device 1100 of the 5th embodiment.
Heating radiator 1060 has in a direction (x direction of principal axis) for growing the limit and having preset width W 1(x direction of principal axis) and predetermined altitude H 1The rectangular shape of (z direction of principal axis).Heating radiator 1060 comprises a plurality of heat radiator 1061 and from upper plate member 1062 and the lower board member 1063 of upper lower support heat radiator 1061.A plurality of heat radiator 1061 are along vertical (x direction of principal axis) linear configurations with predetermined space of heating radiator 1060.The air-flow that generates by air-supply arrangement 1050 is by the slit between the heat radiator 1061.For example, consist of heating radiator 1060 by the metal such as aluminium and copper, but described material is not particularly limited.
It should be noted that in all surface of heating radiator 60, the surface relative with vane member 1010 is known as apparent surface 1060a.
In heating radiator 1060, upper plate member 1061 and heat pipe 1070 hot tie-ins.For example, heat pipe 1070 is thermally coupled to thermal source such as the CPU of PC 1101 on knee by heat spreader 1080.The heat that produces in CPU is received by heat spreader 1080 and spreads, and is transferred into heating radiator 1060 by heat pipe 1070.
Hot tie-in heating radiator 1060 is not particularly limited with method such as the pyrotoxin of CPU.For example, heating radiator 1060 can directly not be connected with heat spreader 1080 by heat pipe 1070.
Air-supply arrangement 1050 comprises vane member 1010, fan hub 1020 and fan driving motor 1015.Vane member 1010 is rotatable.Fan hub 1020 has been taken in vane member 1010 therein.Fan driving motor 1015 rotation and driven vane members 1010.In addition, air-supply arrangement 1050 comprises rotating member (restriction member) 1030 and driving mechanism 1040.Between vane member 1010 and heating radiator 1060, rotating member 1030 is set.Driving mechanism 1040 drives rotating member 1030.
Vane member 1010 is the centrifuge blade member, and comprises hub portion 1011 and extend a plurality of vane members 1012 that arrange with centrifugal direction from hub portion 1011.Vane member 1010 can be centered around the axle that extends on the z direction of principal axis and rotate, and is rotated counterclockwise by fan driving motor 1015.The rotation of vane member 1010 has caused the air-flow towards heating radiator 1060.
Fan driving motor 1015 for example is made of stator, electromagnet and rotor rim (not shown).Fan driving motor 1015 for example is electrically connected to the CPU of PC 1101 on knee, and the driving of CPU control fan driving motor 1015 and stopping.
For example, fan hub 1020 is made of shell main body 1021 and lid member 1022.Shell main body 1021 forms side peripheral part 1020b and the bottom 1020c of fan hub 1020.Lid member 1022 forms the top 1020a of fan hub 1020.
On the top of fan hub 1020 1020a and bottom 1020c, enterprising gas port 1023 and lower air intake opening 1024 are set respectively.Enterprising gas port 1023 and lower air intake opening 1024 are set respectively near the center of top 1020a and bottom 1020c.
Except the function of holding vane member 1010, fan hub 1020 is also with the stream that acts on the air-flow guide radiator 1060 that will generate by vane member 1010.Hereinafter, the main zone that is used as the stream of the air-flow between vane member 1010 and heating radiator 1060 is known as the stream district 1020P (referring to Fig. 4) of fan hub 1020.In addition, in stream district 1020P, the direction that air-flow is directed to is known as path direction.
In stream district 1020P, stream 1026 is for having width W 2And height H 2The rectangle stream, width W 2And height H 2Each at the upper constant (area of section=W of stream of path direction (y direction of principal axis) 2* H 2).Width W with respect to heating radiator 1060 1And height H 1The width W of stream 1026 is set relatively 2And height H 2, so that the width W of stream 1026 2And height H 2Be approximately equal to respectively the width W of heating radiator 1060 1And height H 1By this structure, the air-flow that flows through stream 1026 is directed to whole heating radiator 1060.
Rotating member 1030 is arranged between the vane member 1010 and heating radiator 1060 in the fan hub 1020.That is, rotating member 1030 is arranged among the stream district 1020P of fan hub 1020.
Rotating member 1030 has in the rectangular thin plate shape of a direction (x direction of principal axis) for long limit.The width W of rotating member 1030 3Be approximately equal to the width W of stream 1026 2It should be noted that the height H that will provide subsequently about rotating member 1030 3Detailed description.Rotating member 1030 is for example made by resin or metal, but described material is not particularly limited.
Driving mechanism 1040 comprises main shaft 1041, the arm 1042 that is connected to an end of main shaft 1041 that is connected to rotating member 1030, the spring 1043 that is connected to arm 1042 and the solenoid 1044 that drives arm 1042.
Main shaft 1041 in the bottom of stream district 1020P along the x direction of principal axis by rotatable setting, and be connected to an end of rotating member 1030 at its short side direction.By this structure, rotating member 1030 can be around main shaft 1041 rotations in stream district 1020P.
Arm 1042 is connected to an end of main shaft 1041 by formed hole in the side peripheral part 1020b of fan hub 1020.
An end of spring 1043 is connected to the spring supporting section 1045 on the side peripheral part 1020b that is arranged on fan hub 1020, and another end of spring 1043 is connected to arm 1042.
Solenoid 1044 is electrically connected to for example CPU of PC 1101 on knee, and CPU execution control, by come drive shaft 1041 and rotating member 1030 with arm 1042.
(description of operation)
Next, will the operation of cooling device 1100 be described.Figure 26 A and Figure 26 B are the schematic diagram of the operation that shows cooling device 1100.Figure 26 A has schematically shown the state that rotating member 1030 was fallen, and Figure 26 B has schematically shown the state that rotating member 1030 lifts with the predetermined angular with respect to path direction.
At first, with reference to Figure 26 A, will rotating member 1030 be described by the operation under the state that fell.
Shown in Figure 26 A, rotating member 1030 was usually by being fallen as making rotating member 1030 be parallel to air-flow and stopping.That is, rotating member 1030 stops, and does not limit stream 1026.
For example, when beginning control by CPU and come drive fan drive motor 1015, vane member 1010 begins rotation.When vane member 1010 began to rotate, the air in the lower house 1082 of PC 1101 on knee was inhaled in the fan hub 1020 by enterprising gas port 1023 and lower air intake opening 1024.
The air that is inhaled into fan hub 1020 is accelerated at centrifugal direction by vane member 1010, thereby generates the air-flow towards heating radiator 1060.Cross stream 1026 by the air flow stream that vane member 1010 generates, and be directed to the apparent surface 1060a of heating radiator 1060.
Heating radiator 1060 distributes the heat that transmits from the pyrotoxin such as CPU by heat spreader 1080 and heat pipe by heat radiator 1061.The air that is warmed up in heat radiator 1061 is discharged to the outside of PC 1101 on knee by the exhausr port 1097 of PC 1101 on knee by the air-flow that is generated by vane member 1010.As a result, CPU and heating radiator 1060 are cooled.
The state that it should be noted that rotating member 1030 not limit stream 1026 and its opening and heating radiator 1060 are cooled is known as refrigerating mode in this manual.
Herein, the air from the lower casing 1092 of enterprising gas port 1023 and 1024 suctions of lower air intake opening comprises dust.Therefore, the air-flow that is directed to heating radiator 1060 also comprises dust.For this reason, dust adhesion and being deposited on the heating radiator 1060.
Figure 27 shows dust adhesion in the diagram of the state of heating radiator.Figure 28 is the amplification diagram of the heating radiator under the dust adhesion state thereon.
If refrigerating mode is maintained the long time period, then heat radiator 1061 is stopped up by dust.Dust in heating radiator 1060 adhesions and accumulation mainly is made of thread dust.Particularly, thread dust is easy to adhere to and be deposited on the apparent surface 1060a of heating radiator 1060.
If heating radiator 1060 is maintained at dust adhesion and is deposited in state on the heating radiator 1060, then the ventilation of heat radiator 1061 is obstructed, and causes cooling performance deteriorated of cooling device 1100.
Next, with reference to Figure 26 B, with the operation that is described under the state that rotating member 1030 is lifted with the predetermined angular with respect to path direction.
For example, when the control by CPU drove solenoid 1044, rotating member 1030 was around main shaft 1041 rotations.In this case, for example, rotating member 1030 tilts 90 modes of spending with rotating member 1030 with respect to path direction and stopped several seconds or a few minutes.
When the area of the stream 1026 of rotating member 1030 rotation and air-flow is reduced by the part (hereinafter, stream 1026 in this state is known as narrow stream 1027), air-flow is changed, thereby generates secondary vortex flow on the right side of rotating member 1030.That is, when air-flow is transferred into wide stream from narrow stream, because the relation of the amplification degree of stream has generated secondary vortex flow.Cooling device 1100 according to this embodiment has utilized because the secondary vortex flow that the relation of the amplification degree of stream generates.
When thereby rotating member 1030 limited stream 1026 generation secondary vortex flow, the dust that adheres to the apparent surface 1060a of heating radiator 1060 was blown away by secondary vortex flow.The dust of removing by secondary vortex flow is involved in secondary vortex flow, is released from the slit between the heat radiator 1061, subsequently, is released into the outside of PC 1101 on knee by the exhausr port 1097 of PC 1101 on knee.
In this manual, thus rotating member 1030 limits streams 1026 to be generated secondary vortex flows and is known as dust by the state that secondary vortex flow removes dust and remove pattern.
As mentioned above, in the cooling device 1100 according to this embodiment, under dust removal pattern, can be by the powerful dust of removing the apparent surface 1060a that adheres to heating radiator 1060 of secondary vortex flow.As a result, can prevent cooling performance deteriorated of cooling device 1100.
In addition, in the cooling device 1100 according to this embodiment, be controlled at blocked operation between refrigerating mode and the dust removal pattern by CPU.Therefore, can be performed automatically in switching between refrigerating mode and the dust removal pattern.Therefore, can automatically remove the dust that adheres to heating radiator 1060, the result can eliminate dismantling heating radiator 1060 and clean the trouble of this heating radiator from PC 1101 on knee of task.
In addition, in this embodiment, can from heating radiator 1060, remove dust, and need not increase the rotational speed of vane member 1010.Therefore, can suppress the excessive increase of the power consumption of cooling device 1100.In addition, even when the very little power owing to the fan driving motor 1015 of rotating vane member 1010 causes being difficult to generate air blast, also can from heating radiator 1060, remove dust.
In the description of reference Figure 26 B, under dust removal pattern, rotating member 1030 tilts 90 modes of spending with rotating member 1030 with respect to path direction and stops.But the state of rotating member 1030 is not limited to this.Angle with respect to stream 1026 can be less than or greater than 90 degree.In other words, in dust removal pattern, only need to satisfy the condition that secondary vortex flow contacts with the apparent surface 1060a of heating radiator at least.The angle that rotating member 1030 is lifted is not particularly limited.
(the generation district of secondary vortex flow and the relation between the various parameter)
As mentioned above, the cooling device 1100 according to this embodiment partly is intended to by using the secondary vortex flow that is generated by rotating member 1030 to remove the dust that adheres to heating radiator 1060.In order to realize this point, various parameters are set up, so that the apparent surface 1060a of heating radiator 1060 is arranged on the generation district of secondary vortex flow at least.Various parameters comprise the height H of stream 1026 2, rotating member 1030 height H 3, rotating member 1030 the angle Φ, rotating member 1030 and the heating radiator that are rotated apparent surface 1060a between apart from slit a of d, narrow stream 1027 etc.
Figure 29 A and Figure 29 B are the generation district that shows secondary vortex flow and the diagram of the relation between the various parameter.
Figure 29 A shows in the situation that rotating member 1030 is rotated by 90 degrees the generation district of secondary vortex flow of (Φ=90 degree) and the relation between the various parameter.Figure 29 B shows in the situation that rotating member 1030 is rotated the generation district of secondary vortex flow of 45 degree (Φ=45 degree) and the relation between the various parameter.
Herein, with the relation of describing between the size of the amplification degree of stream and secondary vortex flow.
Figure 30 is the diagram for the relation between the size of the amplification degree of explanation stream and secondary vortex flow.Figure 30 shows the schematic model of the air-flow that is exaggerated.
In Figure 30, pass through b 0The gap that represents finedraw represents to pass through x from the bottom surface to the height of finedraw by D RRepresent to adhere to again distance, represent to adhere to the angle by θ, and pass through x 0Represent from the end of narrow stream to the distance of virtual origin.In addition, in Figure 30, represent by a dotted line to adhere to again streamline, and represent that by the x-y axle initial point is arranged on the coordinate system on the streamline of center.
Represent to adhere to angle θ based on the momentum balance condition by following expression formula (1).
cosθ＝3t/2-t 3/2 ...(1)
Come employed t in the expression (1) by following expression formula (2).
t＝tanh(σy′/(x+x 0)) ...(2)
, in expression formula (2), represent coefficient of diffusion by σ herein, and be illustrated in initial point by y ' and be arranged on y axle and the point of crossing that adheres to again streamline in the coordinate system on the streamline of center.
Based on geometric relationship, represent amplification degree D/b by following expression formula (3) 0
D/b 0＝σ(1/t 2-1){(1-cosθ)/3θ}-1/2 ...(3)
In addition, represent to adhere to apart from x again by following expression formula (4) RWith finedraw gap b 0Ratio x R/ b 0
x R/b 0＝σ(1/t 2-1)sinθ/3θ-tanh -1t/3t 2sinθ ...(4)
By separating the simultaneous equations of expression formula (1) and (3), t and θ have been obtained as amplification degree D/b 0Function, and give expression formula (4) with the value that obtains.As a result, obtain again and adhere to apart from x RWith finedraw gap b 0Ratio x R/ b 0As amplification degree D/b 0Function.
In this case, represent to adhere to apart from x again by following expression formula (5) RWith finedraw gap b 0Ratio x R/ b 0With amplification degree D/b 0Between the approximate expression of relation.
x R/b 0＝2.22(D/b 0) 0.636+0.780D/b 0+0.939 ...(5)
Figure 31 shows and adheres to apart from x RWith finedraw gap b 0Ratio x R/ b 0With amplification degree D/b 0Between the curve map of relation.
In Figure 31, Diamond spot represents the numerical solution that obtains by in fact separating expression formula (1), (3) and (4), and solid line represents top mentioned approximate expression (5).
In addition, in Figure 31, the shadow region represents the formation zone of secondary vortex flow.
When comparison diagram 29A and Figure 30, in the situation of the angle Φ that rotating member 1030 is rotated by 90 degrees, the height H of rotating member 1030 3Corresponding to from the bottom surface to the height D of finedraw, and the gap a of narrow stream 1027 is corresponding to finedraw gap b 0In this case, the D shown in Figure 31 and b 0Be replaced by respectively H 3And a, and setting comprises height H 3, the gap a of narrow stream 1027 and rotating member 1030 and heating radiator apparent surface 1060a between the parameters apart from d, thereby obtain value in the shadow region of Figure 31.
In addition, when comparison diagram 29B and Figure 30, in the situation that rotating member 1030 is rotated 45 degree, the height H of rotating member 1030 3Sinusoidal component (that is, H 3Sin Φ (Φ=45 degree)) corresponding to from the bottom surface to the height D of finedraw, and the gap a of narrow stream 1027 is corresponding to finedraw gap b 0In this case, height D and the b shown in Figure 31 0Be replaced by respectively H 3Sin45 ° and a, and setting comprises height H 3, the gap a of narrow stream 1027 and rotating member 1030 and heating radiator apparent surface 1060a between the parameters apart from d, thereby obtain value in the shadow region of Figure 31.
As a result, the apparent surface 1060a of heating radiator 1060 is arranged in the generation district of secondary vortex flow, therefore, can be removed suitably at the dust of the apparent surface 1060a of heating radiator 1060 adhesion and accumulation.
(evaluation of dust removal capacity)
Next, will the dust removal capacity of cooling device 1100 be described in more detail.
Figure 32 shows the diagram for the proving installation 1081 of estimating the dust removal capacity.
Shown in figure 32, proving installation 1081 comprises the proving installation main body 1082 of hollow and at two inner set sirocco fans 1083 of proving installation main body 1082.The size of proving installation main body 1082 is set to 300 * 300 * 300mm.Two sirocco fans 1083 are arranged on the sidewall of proving installation main body 1082 with toward each other.
In proving installation main body 1082 inside, placed cotton waste 1085 and the cooling device 1100 of simulation dust.Net 1084 has covered whole cooling device 1100, prevents that bulk ash dustball from entering wherein.
At first, drove sirocco fan 1,083 30 seconds, simultaneously the vane member 1010 (step 1) of rotary cooling device 1100.
Next, with respect to path direction rotation 45 degree and kept 10 seconds, after this, it is the position of 0 degree that rotating member 1030 is returned with respect to path direction, and keeps 10 seconds with rotating member 1030.This operation is repeated (step 2) twice.
After this, repeat 10 steps 1 and steps 2.
It should be noted that be used for cooling device (cooling device that does not have the dust removal capacity) relatively, it is 0 degree that rotating member 1030 is maintained at respect to path direction, and need not be rotated as in the superincumbent step 2.
Figure 33 shows before test in the situation that the dust removal capacity is provided and in the situation that does not provide the curve map of the comparison between the flow path resistance of dust removal capacity heating radiator.
In Figure 33, Z-axis represents by the air-flow before the heating radiator 1060 and by the pressure differential Δ P (Pa) between the air-flow behind the heating radiator 1060, and transverse axis represents the air capacity Q (m by the air-flow of heating radiator 1060 3/ min).
In Figure 33, the curve that obtains by connection triangle form point represents to test front flow path resistance.Be shown in the flow path resistance of (that is, in rotating member 1030 driven situations) in the situation that the dust removal capacity is provided by connecting curve table that rectangular dots obtains.In addition, the curve table that obtains by the connection Diamond spot is shown in the flow path resistance that (that is, does not have in driven situation at rotating member 1030) in the situation that the dust removal capacity is not provided.
It should be noted that shown in Figure 33 in the situation that before the test in the situation that the dust removal capacity is provided and the approximate expression (6), (7) of the curve of dust removal capacity are not provided and (8) as follows respectively.
ΔP＝4.82×10 3Q 2+2.54×10 2Q ...(6)
ΔP＝4.88×10 3Q 2+2.62×10 2Q ...(7)
ΔP＝7.71×10 3Q 2+5.42×10 2Q ...(8)
As shown in figure 33, in the situation that provide the flow path resistance of the heating radiator 1060 of dust removal capacity to be significantly less than in the situation that the flow path resistance of dust removal capacity is not provided.In addition, in the situation that provide the dust removal capacity heating radiator 1060 flow path resistance with the test before almost identical.
As shown in figure 33, can find, in the cooling device 1100 according to this embodiment, cause that the dust of the flow path resistance of heating radiator 1060 has undesirably been removed.
In fact the present inventor observes dust adhesion in the state of the heating radiator 1060 that does not have the dust removal capacity and dust adhesion in the state of the heating radiator 1060 with dust removal capacity.As a result, in the heating radiator 1060 that does not have the dust removal capacity, all heat radiator 1061 are stopped up by dust on apparent surface 1060a, only make between the heat radiator of center of heating radiator 1060 slotted section as seen.On the contrary, in the heating radiator 1060 with dust removal capacity, dust adheres to apparent surface 1060a hardly, a small amount of dust adhesion is only arranged in the both sides of heating radiator.
(about the 5th pattern of the switching timing between refrigerating mode and dust removal pattern)
Next, with the description that provides about the 5th pattern of the switching timing between refrigerating mode and dust removal pattern.
Figure 34 shows the process flow diagram about the operation of the 5th pattern of pattern switching timing.
As shown in figure 34, the CPU of PC on knee determines whether the driving enabling signal (step 1101) of having inputted fan driving motor 1015.When input does not drive enabling signal (in the step 1101 no), CPU determines whether the driving enabling signal of having inputted fan driving motor 1015 again.
When having inputted the driving enabling signal of fan driving motor 1015 (being in the step 1101), CPU begins drive fan drive motor 1015 (step 1102).When starting the driving of fan driving motor, the rotation of vane member 1010 is activated, and generates the air-flow towards heating radiator 1060.
When starting the driving of fan driving motor 1015, CPU begins to drive solenoid 1044 (step 1103) subsequently.When solenoid 1044 was driven, rotating member 1030 was rotated 45 degree with respect to path direction.The rotation of rotating member 1030 diminishes stream 1026 parts, has generated secondary vortex flow.Secondary vortex flow blows away the dust of the apparent surface 1060a that adheres to heating radiator 1060, thereby removes dust (dust removal pattern).
After several seconds after the driving of self-starting solenoid 1044 or a few minutes, the driving (step 1104) of CPU stop solenoid 1044.When the driving of solenoid 1044 was stopped, it was the position of 0 degree that rotating member 1030 returns with respect to path direction, thereby makes rotating member 1030 parallel with air-flow.In this case, heating radiator 1060 be cooled (refrigerating mode).
When the driving of CPU stop solenoid 1044, process and again return step 1101, and repeating step 1101 step subsequently.
By top processing, can periodically refrigerating mode be switched to dust and remove pattern, the result can before the dust that adheres to heating radiator 1060 is accumulated thereon and caused the obstruction of heat radiator, get on except dust from heating radiator.
(about the 6th pattern of the switching timing between refrigerating mode and dust removal pattern)
Next, with the description that provides about the 6th pattern of the switching timing between refrigerating mode and dust removal pattern.Figure 35 shows the process flow diagram about the operation of the 6th pattern of pattern switching timing.
As shown in figure 35, CPU determines whether the expiry notification signal (step 1201) of having inputted fan driving motor 1015.When not inputting the expiry notification signal (in the step 1201 no), CPU again determines whether and has inputted the expiry notification signal.In this case, rotating member 1030 is rotation not, and heating radiator 1060 be cooled (refrigerating mode).
When having inputted the expiry notification signal of fan driving motor 1015 (being in the step 1201), CPU can not stop fan driving motor 1015 at once, but begins to drive solenoid 1044 (step 1202).When starting the driving of solenoid 1044, therefore rotating member 1030 rotations have generated secondary vortex flow.As a result, the dust that adheres to the apparent surface 1060a of heating radiator 1060 is blown away and is removed (dust removal pattern) from it.
After after the driving of self-starting solenoid 1044 several seconds or a few minutes, the driving (step 1203) of CPU stop solenoid 1044.When the driving of solenoid 1044 was stopped, it was the position of 0 degree that rotating member 1030 returns with respect to path direction, thereby makes rotating member 1030 parallel with air-flow.
After the driving of stop solenoid 1044, CPU stops the driving (step 1204) of fan driving motor 1015.
By top processing, also can periodically remove dust from heating radiator 1060, therefore, can obtain the effect identical with the 5th pattern.
(about the 7th pattern of the switching timing between refrigerating mode and dust removal pattern)
Next, with the description that provides about the 7th pattern of the switching timing between refrigerating mode and dust removal pattern.Figure 36 shows the process flow diagram of the operation of the 7th pattern.
CPU determines whether the driving (step 1301) of stop solenoid 1044.That is, CPU judges whether dust removal pattern is switched to refrigerating mode, and whether refrigerating mode is activated.When the driving of solenoid 1044 is stopped (being in the step 1301), CPU for opening, and begins the set timer of counter the count value that generates with predetermined time interval is counted.For counter, can use the counter that is exclusively used in cooling device 1100, perhaps can use the counter that is equipped to such as the electronic installation of PC 1101 on knee.
Next, CPU judges whether count value reaches designated value (step 1303).Designated value still is not limited to this corresponding to certain time period (for example, a week).
When count value reaches designated value (being in the step 1303), that is, when when starting refrigerating mode and begin through certain time period (for example, a week), CPU judges fan driving motor 1015 whether driven (step 1304).
When fan driving motor 1015 is driven (being in the step 1304), CPU begins to drive solenoid 1044 (step 1305).In this case, rotating member 1030 rotations, thus generate secondary vortex flow.As a result, the apparent surface 1060a from heating radiator 1060 removes dust (dust removal pattern).
After later several seconds of the driving of self-starting solenoid 1044 or a few minutes, the driving (step 1306) of CPU stop solenoid 1044.In this case, it is the position of 0 degree that rotating member 1030 is back to respect to path direction, thus cooling radiator 1060 (refrigerating mode).
On the other hand, do not have in driven situation (in the step 1304 no) at fan driving motor when count value reaches designated value 1015, CPU judges whether the driving signal of fan driving motor 1015 is transfused to (step 1307).
When having inputted the driving signal of fan driving motor 1015 (step 1307 is yes), CPU drive fan drive motor 1015 (steps 1308) after this, start the driving (step 1305) of solenoid 1044.That is, do not have in driven situation at fan driving motor when count value reaches designated value 1015, after the driving signal of having inputted fan driving motor 1015, CPU drives solenoid 1044.
When the driving of solenoid 1044 is stopped (step 1306), that is, when refrigerating mode is activated, cpu reset timer (step 1302), and by counter restart the counting.
By top processing, also can periodically refrigerating mode be switched to dust and remove pattern.
(about the 8th pattern of the switching timing between refrigerating mode and dust removal pattern)
Next, with the description that provides about the 8th pattern of the switching timing between refrigerating mode and dust removal pattern.Figure 37 shows the process flow diagram of the operation of the 8th pattern.
As shown in figure 37, CPU judges whether the driving of solenoid 1044 is stopped (step 1401), and judges whether refrigerating mode is activated.
When the driving of solenoid 1044 is stopped and refrigerating mode when being activated (being in the step 1401), CPU inputs rotating signals from fan driving motor 1015, and begins the number of revolutions of fan driving motor 1015 is counted (step 1402) by usage counter.
Next, CPU judges whether the count value of number of revolutions reaches designated value (step 1403).Designated value for example is set to 1,000,000, but is not limited to this.
When count value reaches designated value (being in the step 1403), that is, when the number of revolutions of vane member reaches predetermined number of times (for example, 1,000,000 times), CPU starts the driving (step 1404) of solenoid 1044, and rotation rotating member 1030.After this, the driving (step 1405) of CPU stop solenoid 1044, the number of revolutions that resets, and restart the number of revolutions of fan driving motor 1015 is counted (step 1402).
By top processing, also can periodically refrigerating mode be switched to dust and remove pattern.
(various modification)
Top embodiment can carry out various modifications.
For example, in order to ensure the control of the angle that rotating member 1030 is rotated, can use optical sensor or magnetic sensor.
In the above embodiments, the driving mechanism 1040 of driving rotating member 1030 comprises arm 1042, spring 1043 and solenoid 1044.But the structure of driving mechanism 1040 is not limited to this.For example, as the driving mechanism 1040 that is used for driving rotating member 1030, can use motor to replace solenoid.In this case, in order to ensure the control to rotating member 1030 anglecs of rotation, can use stepper motor.
In the above embodiments, the driving of the CPU of PC on knee control fan driving motor 1015 and solenoid 1044, but this structure is not limited to this.The CPU that is exclusively used in cooling device 1100 can be set, and this CPU can control the driving of fan driving motor 1015 and solenoid 1044.
In the description of reference Figure 22, use PC 1101 on knee as the example of having equipped the electronic installation of cooling device 1100, but electronic installation is not limited to this.The example of electronic installation comprises a upper PC, audio-visual equipment, projector, game machine, robot device etc.
One skilled in the art will understand that according to designing requirement and other factors, multiple modification, combination, sub-portfolio and improvement can be arranged, all should be included within the scope of appended claim or its equivalent.

Claims (26)

1. cooling device comprises:
Heating radiator;
Wind pushing mechanism has air outlet, and described air outlet has predetermined area and relative with described heating radiator;
Aperture member has area less than the first opening of the area of described air outlet; And
Travel mechanism, mobile described aperture member is to carry out the switching between the first state and the second state, described the first state is that described the first opening is arranged on the state between described air outlet and the described heating radiator, and described the second state is the state of described the first opening from being removed between described air outlet and the described heating radiator.
2. cooling device according to claim 1,
Wherein, described aperture member also has the second opening, and described the second opening has the area that equates with the area of described air outlet, and
Wherein, under described the second state, described the second opening is relative with described air outlet.
3. cooling device according to claim 2,
Wherein, described aperture member is in the ribbon-shaped members of x direction of principal axis for long limit,
Wherein, described the first opening and described the second opening form in described ribbon-shaped members as the crow flies along the long side direction of described ribbon-shaped members, and
Wherein, described travel mechanism moves described ribbon-shaped members along described air outlet on described long side direction.
4. cooling device according to claim 3,
Wherein, described travel mechanism comprises:
The first axle is connected to an end of described ribbon-shaped members, and can rolls and spread out described ribbon-shaped members,
The second axle is provided so that described the first axle and described the second axle are clipped in the middle described air outlet, and described the second axle is connected to another end of described ribbon-shaped members, and can roll and spread out described ribbon-shaped members, and
Drive source is used for rotation and drives described the first axle and described the second axle.
5. cooling device according to claim 3,
Wherein, described ribbon-shaped members is annular, and
Wherein, described travel mechanism comprises:
A plurality of axles support described ribbon-shaped members, come to rotate described ribbon-shaped members around described wind pushing mechanism by being arranged on described wind pushing mechanism described a plurality of axles on every side simultaneously, and
Drive source is used for rotation and drives at least one of described a plurality of axles.
6. cooling device according to claim 1,
Wherein, described aperture member is at the tabular component of x direction of principal axis for long limit, and
Wherein, described travel mechanism moves described tabular component along described air outlet on long side direction.
7. cooling device according to claim 6,
Wherein, described tabular component comprises tooth bar at described long side direction, and
Wherein, described travel mechanism comprises:
Pinion wheel, with described tooth bar engagement, and
Drive source is used for rotation and drives described pinion wheel.
8. cooling device according to claim 1 also comprises:
Control device is used for controlling the movement of the described aperture member of being undertaken by described travel mechanism, so that described the second state is periodically switched to described the first state.
9. cooling device according to claim 8,
Wherein, described wind pushing mechanism also comprises vane member, and described vane member generates the air-flow that flows out from described air outlet by the rotation of himself, and
Wherein, described control device is controlled the movement of described aperture member so that when the startup of the rotation of carrying out described vane member and stop one of them the time, described the second state is switched to described the first state.
10. cooling device according to claim 8,
Wherein, described wind pushing mechanism also comprises described vane member, and described vane member generates the air-flow that flows out from described air outlet by the rotation of himself,
Described cooling device also comprises:
The rotation counting device is used for the number of revolutions of described vane member is counted; And
The rotation counting decision maker is used for judging whether described number of revolutions reaches the appointment count value, and
Wherein, described control device is controlled the movement of described aperture member, so that when described number of revolutions reached described appointment count value, described the second state was switched to described the first state.
11. cooling device according to claim 8 also comprises:
Time set is used for beginning the elapsed time section and carrying out timing be switched to described the second state from described the first state; And
The time decision maker, whether the time period that is used for the timing of judgement institute reaches the fixed time section,
Wherein, described control device is controlled the movement of described aperture member, so that reach described fixed time during section when the described time period, described the second state is switched to described the first state.
12. a cooling device comprises:
Heating radiator;
Wind pushing mechanism has air outlet, and described air outlet has predetermined area and relative with described heating radiator;
Rotating member comprises the coverage section of the area that limits described air outlet, and described rotating member is rotatable and be arranged between described heating radiator and the described air outlet; And
Rotating mechanism, thereby be used for rotating the switching of described rotating member execution between the first state and the second state, described the first state is the area of the described air outlet that limits by the described coverage section state less than original area of described air outlet, and the area that described the second state is described air outlet is not by the state of described coverage section restriction.
13. cooling device according to claim 12,
Wherein, described air outlet is long limit at the x direction of principal axis, and
Wherein, described rotating member is rotatable around the axle that extends along long side direction.
14. cooling device according to claim 13,
Wherein, described rotating member comprises the first rotating member and the second rotating member that is set to arrange betwixt described air outlet.
15. an electronic installation comprises:
Pyrotoxin; And
Cooling device comprises: heating radiator, distribute the heat that transmits from described pyrotoxin; Wind pushing mechanism has air outlet, and described air outlet has predetermined area and relative with described heating radiator; Aperture member has the first opening, and described the first opening has the area less than the area of described air outlet; And travel mechanism, be used for mobile described aperture member to carry out the switching between the first state and the second state, described the first state is that described the first opening is arranged on the state between described air outlet and the described heating radiator, and described the second state is the state of described the first opening from removing between described air outlet and the described heating radiator.
16. an electronic installation comprises:
Pyrotoxin; And
Cooling device comprises: heating radiator, distribute the heat that transmits from described pyrotoxin; Wind pushing mechanism has air outlet, and described air outlet has predetermined area and relative with described heating radiator; Rotating member comprises the coverage section of the area that limits described air outlet, and described rotating member is rotatable and be arranged between described heating radiator and the described air outlet; And rotating mechanism, be used for rotating described rotating member to carry out the switching between the first state and the second state, described the first state is the area of the described air outlet that limits by the described coverage section state less than original area of described air outlet, and the area that described the second state is described air outlet is not by the state of described coverage section restriction.
17. an air-supply arrangement comprises:
Wind pushing mechanism has air outlet, and described air outlet has predetermined area;
Aperture member has the first opening, and described the first opening has the area less than the area of described air outlet; And
Travel mechanism, be used for mobile described aperture member to carry out the switching between the first state and the second state, described the first state is the state that described the first opening is arranged on the place ahead of described air outlet, and described the second state is the state that described the first opening is removed from the place ahead of described air outlet.
18. an air-supply arrangement comprises:
Wind pushing mechanism has air outlet, and described air outlet has predetermined area;
Rotating member comprises the coverage section of the area that limits described air outlet, and described rotating member is rotatable and be arranged on the place ahead of described air outlet; And
Rotating mechanism, be used for rotating described rotating member to carry out the switching between the first state and the second state, described the first state is the area of the described air outlet that limits by the described coverage section state less than original area of described air outlet, and the area that described the second state is described air outlet is not by the state of described coverage section restriction.
19. a cooling device comprises:
Heating radiator has air-flow and is directed to its surface;
Vane member generates the described air-flow towards described surface;
Channel member is used to form stream, described air-flow by described stream from the described vane member described heating radiator that leads;
Limit member, can limit the area of section of described stream; And
Driving mechanism, be used for driving described restriction member to carry out the switching between the first state and the second state, described the first state be described stream not by the state of described restriction component limit, described the second state for by the described stream of described restriction component limit with the generation eddy current so that the state of described eddy current and described Surface Contact.
20. cooling device according to claim 19 also comprises:
Control device is used for controlling described driving mechanism, so that described the first state is periodically switched to described the second state.
21. cooling device according to claim 20,
Wherein, described vane member generates described air-flow by the rotation of himself, and
Wherein, described control device is controlled described driving mechanism, so that when starting the rotation of described vane member, described the first state is switched to described the second state.
22. cooling device according to claim 20,
Wherein, described vane member generates described air-flow by the rotation of himself, and
Wherein, described control device is controlled described driving mechanism, so that when stopping the rotation of described vane member, described the first state is switched to described the second state.
23. cooling device according to claim 20,
Wherein, described vane member generates described air-flow by the rotation of himself, and described cooling device also comprises:
The rotation counting device is used for the number of revolutions of described vane member is counted; And
The rotation counting decision maker is used for judging whether the number of revolutions of counting reaches the appointment count value, and
Wherein, described control device is controlled described drive unit, so that when described number of revolutions reached described appointment count value, described the first state was switched to described the second state.
24. cooling device according to claim 20 also comprises:
Time set is used for beginning the elapsed time section and carrying out timing be switched to described the first state from described the second state; And
The time decision maker, whether the time period that is used for the timing of judgement institute reaches the fixed time section,
Wherein, described control device is controlled described driving mechanism, so that reach described fixed time during section when the described time period, described the first state is switched to described the second state.
25. an electronic installation comprises:
Pyrotoxin; And
Cooling device comprises: heating radiator has air-flow and is directed to its surface, and distributes the heat that transmits from described pyrotoxin; Vane member generates the described air-flow towards described surface; Channel member is used to form stream, and described air-flow is directed to described heating radiator by described stream from described vane member; Limit member, can limit the area of section of described stream; And driving mechanism, thereby be used for driving the switching of described restriction member execution between the first state and the second state, described the first state be described stream not by the state of described restriction component limit, described the second state for by the described stream of described restriction component limit with the generation eddy current so that the state of described eddy current and described Surface Contact.
26. an air-supply arrangement comprises:
Vane member generates the air-flow towards the surface of heating radiator, and described radiating appliance has described air-flow to be directed to its surface;
Channel member is used to form stream, and described air-flow is directed to described heating radiator by described stream from described vane member;
Limit member, can limit the area of section of described stream; And
Driving mechanism, thereby be used for driving the switching of described restriction member execution between the first state and the second state, described the first state be described stream not by the state of described restriction component limit, described the second state for by described restriction component limit described stream with the generation eddy current so that the state of described eddy current and described Surface Contact.
CN2009101761954A 2008-09-25 2009-09-25 Cooling apparatus, electronic apparatus, and blower apparatus Expired - Fee Related CN101685332B (en)

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