CN101528017B - Radiating component and radiating method - Google Patents
Radiating component and radiating method Download PDFInfo
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- CN101528017B CN101528017B CN2008100073153A CN200810007315A CN101528017B CN 101528017 B CN101528017 B CN 101528017B CN 2008100073153 A CN2008100073153 A CN 2008100073153A CN 200810007315 A CN200810007315 A CN 200810007315A CN 101528017 B CN101528017 B CN 101528017B
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Abstract
The invention discloses a radiating component, which comprises a fluid cavity, a micro channel, a first electrode and at least one second electrode. The fluid cavity is used for accommodating fluid. The micro channel branches and extends from the fluid cavity to attach to the radiating component. The first electrode is arranged in the fluid cavity and is contacted with the fluid. The second electrodes are arranged on the side wall of the micro channel, and the polarities of the electrodes are opposite to the polarity of the first electrode, wherein the first electrode and the second electrodes are electrified, the first electrode can provide electric charges to the fluid, and the fluid enter the micro channel from the fluid cavity to reach the preset position according to the voltage load degree of the second electrodes so as to approach the radiating component.
Description
Technical field
The present invention relates to a kind of radiating subassembly, cooling system and heat dissipating method, and especially, the present invention relates to a kind of radiating subassembly, cooling system and heat dissipating method that utilizes the wet effect regulation and control of electricity cooling fluid position.
Background technology
Because semiconductor science and technology is fast-developing, increasing variation has taken place in the function of chip, and its size is more and more littler in recent years.For one chip, the function of variation is many more just to need more signal to transmit pin, on the other hand, and the more little densification of then representing chip and signal transmission pin of size.Under this volumeization and highdensity design, the heat that chip produced has exceeded many than in the past, and because the intensive more difficult loss of heat that causes generation of structure.Therefore, the chip cooling technology becomes the important subject of semiconductor science and technology sustainable development.
The heat dissipation technology that generally is used on the chip is to install heat abstractor additional to help chip cooling on chip.The heat abstractor of chip comprises passive form and active form.The heat abstractor of passive form is heat radiating fin, thermal grease or fin etc. for example, has the advantages such as simple and cheap of making.The heat abstractor of active form is the ventilation type radiator fan or the circulating cooling system of cooling fluid cooperation fluid channel for example, heat abstractor than passive form, the heat abstractor of active form has than the good cooling effect, but the heat abstractor of the more passive form of its price is high.
Cooperate the circulating cooling system of fluid channel owing to have with cooling fluid, be applicable to the electronic building brick of highly dense intensity than better heat radiating effect.In the prior art, circulating cooling system provides higher radiating efficiency at the high density area of electronic building brick or functional areas (that is, high hot zone).Yet, also have different the degree of heat between each functional areas, therefore, the invention provides a kind of active form heat abstractor that adjustable radiating efficiency can be provided according to the functional areas that have the different heat degree on chip or the circuit board.
Summary of the invention
The object of the present invention is to provide a kind of radiating subassembly that utilizes the wet effect regulation and control of electricity cooling fluid position, so that adjustable radiating efficiency to be provided.
According to specific embodiment, radiating subassembly of the present invention comprises fluid cavity, fluid channel, first electrode and at least one second electrode.Fluid cavity is in order to hold fluid (that is cooling fluid); Fluid channel is from fluid cavity branch and extension, and this fluid channel is pressed close to heat generating component; First electrode is arranged in the fluid cavity and contacting with fluid; Second electrode is arranged at the sidewall of fluid channel, by the sidewall and the fluid barrier of fluid channel.Wherein, first electrode is opposite with the polarity of second electrode.
In this specific embodiment, when first electrode and second electrifying electrodes, first electrode can directly provide electric charge to fluid.According to the voltage loads degree of the wet effect of electricity and second electrode, fluid can enter fluid channel from fluid cavity, and it highly arrives the predeterminated position in the fluid channel and near heat generating component, helps the heat generating component heat radiation thus.
According to radiating subassembly of the present invention, further comprise: control unit is electrically connected second electrode, in order to control the voltage loads degree of this second electrode.
According to radiating subassembly of the present invention, wherein control unit is according to the heat distribution situation of heat generating component control voltage loads degree, with adjust fluid in fluid channel height, flow rate and/or come and go the frequency of predeterminated position from fluid cavity.
According to radiating subassembly of the present invention, wherein said fluid is a polar fluid.
According to radiating subassembly of the present invention, wherein second electrode is arranged at intervals at the sidewall of fluid channel in regular turn.
According to radiating subassembly of the present invention, wherein the sidewall of fluid channel is made by dielectric material.
According to radiating subassembly of the present invention, further comprise: storage element, in order to store fluid; Supply line connects this storage element and fluid cavity, in order to accommodating fluid to fluid cavity.
According to radiating subassembly of the present invention, wherein this supply line further comprises: at least one third electrode, be arranged at the sidewall of supply line, and the polarity of these third electrodes is opposite with the polarity of first electrode.
According to radiating subassembly of the present invention, wherein fluid cavity is pressed close to heat generating component.
Another object of the present invention is to provide a kind of cooling system that utilizes the wet effect regulation and control of electricity cooling fluid position, so that adjustable radiating efficiency to be provided.
According to a specific embodiment, cooling system of the present invention comprises storage element, supply line and radiating subassembly.Storage element is in order to store fluid; Supply line connects storage element and radiating subassembly, and from the storage element accommodating fluid to radiating subassembly; Radiating subassembly is in order to the contact heating assembly and assist the heat generating component heat radiation.Radiating subassembly comprises fluid cavity, fluid channel, first electrode and at least one second electrode.Fluid cavity is in order to hold fluid; Fluid channel is from fluid cavity branch and extension, and fluid channel is pressed close to heat generating component; First electrode is arranged in the fluid cavity and contacting with fluid; Second electrode is arranged at the sidewall of fluid channel, by the sidewall and the fluid barrier of fluid channel.Wherein, first electrode is opposite with the polarity of second electrode.
In this specific embodiment, when first electrode and second electrifying electrodes, first electrode can directly provide electric charge to fluid.According to the voltage loads degree of the wet effect of electricity and second electrode, fluid can be flowed through supply line and fluid cavity entering fluid channel from storage element, and its highly arrive in the fluid channel predeterminated position and near heat generating component, help the heat generating component heat radiation thus.
Another object of the present invention is to provide a kind of heat dissipating method that utilizes the wet effect regulation and control of electricity cooling fluid position, so that adjustable radiating efficiency to be provided.
According to a specific embodiment, heat dissipating method of the present invention comprises the following step: preparation is in order to hold the fluid cavity of fluid, and fluid channel is also extended in order to press close to heat generating component by this fluid cavity branch; First electrode is set in fluid cavity, and this first electrode will contacting with fluid; The routine wall of at least one second electrode in fluid channel is set, and the polarity of second electrode is opposite with the polarity of first electrode; And, to first electrode and second electrifying electrodes.When to first electrode and second electrifying electrodes, first electrode can provide electric charge to fluid, voltage loads degree according to the wet effect of electricity and second electrode, fluid can enter the fluid channel from fluid cavity, and it highly arrives the predeterminated position in the fluid channel and near heat generating component, helps the heat generating component heat radiation thus.
According to heat dissipating method of the present invention, further comprise the following step: storage element is set holding fluid, and this storage element is communicated with this fluid cavity, with accommodating fluid to fluid cavity.
According to heat dissipating method of the present invention, further comprise the following step: control unit is set is electrically connected this second electrode, in order to control the voltage loads degree of second electrode.
According to heat dissipating method of the present invention, wherein this control unit is according to the heat distribution situation of heat generating component control voltage loads degree, with adjust fluid in fluid channel height, flow rate and/or come and go the frequency of this predeterminated position from fluid cavity.
According to heat dissipating method of the present invention, wherein this fluid is a polar fluid.
According to heat dissipating method of the present invention, wherein second electrode is arranged at intervals at the sidewall of fluid channel in regular turn.
According to heat dissipating method of the present invention, further comprise the following step: this fluid cavity is pressed close to heat generating component.
Can be further understood by the following detailed description and accompanying drawings about the advantages and spirit of the present invention.
Description of drawings
Figure 1A has described the profile according to the radiating subassembly of a specific embodiment of the present invention.
Figure 1B has described first electrode of Figure 1A and the schematic diagram of second electrifying electrodes.
Fig. 1 C has described first electrode of Figure 1A and the schematic diagram of second electrifying electrodes.
Fig. 1 D has described the profile according to the radiating subassembly of another specific embodiment of the present invention.
Fig. 1 E has described the profile according to the radiating subassembly 1 of another specific embodiment of the present invention.
Fig. 2 is the end view according to the radiating subassembly of another specific embodiment of the present invention.
Fig. 3 has described the schematic diagram according to the cooling system of a specific embodiment of the present invention.
Fig. 4 has described the schematic diagram according to the cooling system of another specific embodiment of the present invention.
Fig. 5 A has described the schematic diagram according to the cooling system of another specific embodiment of the present invention.
Fig. 5 B has described the vertical view of the cooling system help heat radiation of Fig. 5 A.
Fig. 6 has described the schematic diagram according to the cooling system of another specific embodiment of the present invention.
Fig. 7 has described the flow chart of steps according to the heat dissipating method of a specific embodiment of the present invention.
Fig. 8 has described the flow chart of steps according to the heat dissipating method of another specific embodiment of the present invention.
Embodiment
With reference to Figure 1A, Figure 1B and Fig. 1 C, Figure 1A has described the profile according to the radiating subassembly 1 of a specific embodiment of the present invention; Figure 1B and Fig. 1 C have described first electrode 14 of Figure 1A and the schematic diagram of second electrode, 16 energisings.Shown in Figure 1A, radiating subassembly 1 comprises fluid cavity 10, fluid channel 12, first electrode 14 and second electrode 16.Fluid cavity 10 is in order to hold fluid 100.Fluid channel 12 is from fluid cavity 10 branches and extension, and in addition, the other end of fluid channel 12 is pressed close to heat generating component 2.Please note, fluid channel 12 is direct contact heating assembly 2 in this specific embodiment, yet in actual applications, heat generating component (as chip) is generally positioned on the one side of circuit board, but so the fluid channel also another side of contact circuit plate and the position of corresponding heat generating component.First electrode 14 is arranged in the fluid cavity 10 and contacting with fluid 100.Second electrode 16 is arranged at the sidewall of fluid channel 12, by the sidewall and fluid 100 obstructs of fluid channel 12.Wherein, the polarity of first electrode 14 is opposite with the polarity of second electrode 16, first electrode 14 of this specific embodiment provides positive polarity voltage, 16 at second electrode provides reverse voltage, in actual applications, first electrode 14 also can provide the reverse voltage and second electrode 16 that positive polarity voltage is provided.
In this specific embodiment, second electrode 16 is around fluid channel 12 and be spaced in regular turn in the sidewall of fluid channel 12, and its quantity is five, yet in actual applications, the quantity of second electrode, the position of setting, exterior design and each second interelectrode arrangement, demand according to user or designer is decided, and is not subject to this specific embodiment.In actual applications, heat generating component 2 can comprise chips such as microprocessor, microcontroller or other system processor; The sidewall of fluid channel 12 can be made by dielectric material; Fluid 100 is in order to cooling heat generating component 2, and for example water, electrolyte etc. have the conductor fluid of polarity.
In addition, first electrode 14 and second electrode 16 can be electrically connected control unit 18 respectively.Control unit 18 is in order to control first electrode 14 and 16 energisings of second electrode.In specific embodiment, control unit 18 may command are switched in regular turn by second electrode 16 to second electrode 16 near heat generating component 2 near fluid cavity 10, and the quantity of second electrode, 16 energisings can be considered the voltage loads degree of these second electrode, 16 integral body.
When control unit 18 control first electrodes 14 and 16 energisings of second electrode, first electrode 14 can provide positive charge to fluid 100.Because fluid 100 is polar fluids, according to the wet effect of electricity, second electrode 16 that fluid 100 will be had a reverse voltage attracts and enters fluid channel 12, shown in Figure 1B and Fig. 1 C.In Figure 1B, near three second electrodes, 16 energisings of fluid cavity 10, therefore, fluid 100 will arrive as the height among Figure 1B, and in addition, if switch near four second electrodes 16 of fluid cavity 10, fluid 100 will arrive as the height among Fig. 1 C.Thus, control unit 18 can be controlled fluid 100 and enter fluid channel 12, and it highly arrives the predeterminated position in the fluid channel 12.By the fluid of fluid channel differing heights is provided, can regulate and control the radiating efficiency that fluid channel offers heat generating component.
As mentioned above, each second electrode 16 of this specific embodiment can be switched on respectively, and the height that fluid 100 is arrived in fluid channel 12 has stage, causes radiating subassembly 1 that digitized radiating efficiency is provided.
With reference to Fig. 1 D, Fig. 1 D has described the profile according to the radiating subassembly 1 of another specific embodiment of the present invention.Shown in Fig. 1 D, radiating subassembly 1 has single second electrode 16, when first electrode 14 and 16 energisings of second electrode, can adjust the height of liquid 100 in fluid channel 12 according to the voltage swing of second electrode 16, because the height that liquid 100 arrives in fluid channel 12 is not a stage, causes radiating subassembly 1 that simulated radiating efficiency is provided.Other unit of this specific embodiment is identical with a last specific embodiment, does not repeat them here.
Above-mentioned each specific embodiment utilizes fluid to arrive the interior height difference of fluid channel so that different radiating efficiencys to be provided, yet in actual applications, the all right while of control unit is according to the degree of the functional areas heating of heat generating component, the predeterminated position of control fluid in fluid cavity and fluid channel comes and goes, and quickens heat radiation thus.And,, also can further adjust radiating efficiency, with realistic demands of applications by the frequency that the control fluid comes and goes.
With reference to Fig. 1 E, Fig. 1 E has described the profile according to the radiating subassembly 1 of another specific embodiment of the present invention.Shown in Fig. 1 E, the difference of this specific embodiment and a last specific embodiment is the fluid cavity 10 contact heating assemblies 2 of radiating subassembly 1.The heat that heat generating component 2 is produced will conduct to the fluid 100 of fluid cavity 10, and by fluid 100 heat is dissipated in the environment again.When first electrode 14 and 16 energisings of second electrode, according to the predeterminated position in the height arrival fluid channel 12 of the adjustable rectification body 100 of the voltage swing of second electrode 16, therefore, according to the predeterminated position height in the fluid 100 arrival fluid channel 12, can provide different radiating efficiency in each zone of heat generating component 2.
With reference to Fig. 2, Fig. 2 is the end view according to the radiating subassembly 1 of another specific embodiment of the present invention.As shown in Figure 2, radiating subassembly 1 has a plurality of fluid channel 120,122, and these fluid channel are pressed close to a plurality of functional areas 20 of heat generating component 2 respectively.Please note, the functional areas 20 of this specific embodiment are positioned at the one side of heat generating component 2,120,122 another sides of pressing close to heat generating component 2 of fluid channel, however in actual applications, fluid channel 120,122 and functional areas 20 can be positioned at one side and directly press close to functional areas 20.
In this specific embodiment, the degree of heat difference of each functional areas 20, the height of the fluid 100 in the therefore corresponding fluid channel arrives different position in the fluid channel, so that different radiating efficiencys to be provided.For example, when the functional areas on the left side among Fig. 2 20 the degree of heat during greater than the functional areas 20 on the right, more near heat generating component 2, the radiating efficiency that causes left side fluid channel 120 to provide is higher than the radiating efficiency that the right fluid channel 122 provides than the right fluid channel 122 in the position of may command fluid 100 arrival left side fluid channel 120.
According to another specific embodiment, radiating subassembly of the present invention can provide a plurality of fluid channel to contact this functional areas in functional areas of heat generating component, for example, and the functional areas 20 on a plurality of fluid channel 120 contact heating assemblies 2 left sides as Fig. 2.In this specific embodiment, control unit can be controlled fluid and enter each fluid channel and arrive precalculated position in the fluid channel, and according to the degree of functional areas heating, control unit can be controlled the quantity that fluid enters fluid channel.When the functional areas the degree of heat was higher, control unit may command fluid entered more fluid channel so that better radiating efficiency to be provided.Further, control unit can be controlled fluid simultaneously and enter the quantity of fluid channel and fluid and arrive precalculated position in each fluid channel, and different radiating efficiencys are provided thus more subtly.
In sum, the radiating subassembly 1 of above-mentioned specific embodiment can utilize the wet effect regulation and control of electricity fluid position, for the heat generating component 2 of different heat degree or the functional areas of heat generating component 2 provide adjustable radiating efficiency.
In addition, in actual applications, the fluid channel of the radiating subassembly of above-mentioned specific embodiment also can be smooth in heat generating component.Control unit programmable control ring is around in second electrifying electrodes of fluid channel, and flow through the speed of fluid channel by the wet effect indirect adjustments and controls fluid of electricity, with at the heat generating component that the different heat degree is provided or the functional areas of heat generating component provide adjustable radiating efficiency.
With reference to Fig. 3, Fig. 3 has described the schematic diagram according to the cooling system 3 of a specific embodiment of the present invention.As shown in Figure 3, cooling system 3 contact heating assemblies 4 are to help heat generating component 4 heat radiations.Cooling system 3 comprises storage element 30, supply line 32 and radiating subassembly 34.Store fluid 300 in the storage element.Supply line 32 connects storage element 30 and radiating subassembly 34, and can be from storage element 30 accommodating fluids 300 to radiating subassembly 34.Radiating subassembly 34 comprises fluid cavity 340, fluid channel 342, first electrode 344 and second electrode 346.Fluid cavity 340 is in order to hold fluid 300.Fluid channel 342 is from fluid cavity 340 branches and extension, and in addition, the other end of fluid channel 342 is pressed close to heat generating component 4.First electrode 344 is arranged in the fluid cavity 340, and first electrode, 344 contacting with fluid 300.Second electrode 346 is arranged at the sidewall of fluid channel 342, by the sidewall and fluid 300 obstructs of fluid channel 342.Wherein, the polarity of first electrode 344 is opposite with the polarity of second electrode 346, first electrode 344 of this specific embodiment provides positive polarity voltage, 346 at second electrode provides reverse voltage, in actual applications, first electrode 344 also can provide the reverse voltage and second electrode 346 that positive polarity voltage is provided.
Similarly, in this specific embodiment, second electrode 346 is around fluid channel 342 and be spaced in regular turn in the sidewall of fluid channel 342, and its quantity is five, yet in actual applications, arrangement between the quantity of second electrode, the position of setting, exterior design and each second electrode is decided according to user or designer's demand, and is not subject to this specific embodiment.In actual applications, heat generating component 4 can comprise chips such as microprocessor, microcontroller or other system processor; The sidewall of fluid channel 342 can be made by dielectric material; Fluid 300 is in order to the cooling heat generating component, and for example water, electrolyte etc. have the conductor fluid of polarity.
In addition, first electrode 344 and second electrode 346 can be electrically connected control unit 348.Control unit 348 is in order to control first electrode 344 and 346 energisings of second electrode.In this specific embodiment, control unit 348 may command are switched in regular turn by second electrode 346 to second electrode 346 near heat generating component 4 near fluid cavity 340, and the quantity of second electrode, 346 energisings can be considered the voltage loads degree of these second electrode, 346 integral body.
When control unit 348 control first electrodes 344 and 346 energisings of second electrode, first electrode 344 can provide positive charge to fluid 300.Because fluid 300 is polar fluids, according to the wet effect of electricity, second electrode 346 that fluid 300 will be had a reverse voltage attracts and enters fluid channel 342.Thus, control unit 18 can be controlled fluid 300 and enter fluid channel 342, and it highly arrives the predeterminated position in the fluid channel 342.Please note, in this specific embodiment, according to the number of second electrode 346 energising (promptly, the voltage loads degree of second electrode, 346 integral body), first electrode 344 provides corresponding charge to fluid 300, the predeterminated position that causes fluid 300 to arrive in the fluid channel 342 is to provide adjustable radiating efficiency.
In addition, according to another specific embodiment, the sidewall of supply line 32 can be provided with at least one third electrode (not being shown among the figure), and third electrode can further be electrically connected control unit 348.The polarity of third electrode is opposite with first electrode 344, therefore, by the wet effect of electricity, can help liquid 300 to be supplied to radiating subassembly 34.Similarly, third electrode also can be electrically connected to control unit 348, by control unit 348 adjustable rectification bodies 300 flowing in supply line 32.Please note, this specific embodiment all is electrically connected to control unit 348 with first electrode 344, second electrode 346 and the third electrode of a last specific embodiment, these three kinds of electrodes can connect different control units respectively, decide according to user or designer's demand yet in actual applications.
On the other hand, each of above-mentioned specific embodiment second electrode 346 can be switched on respectively, and the height that fluid 300 is arrived in fluid channel 342 has stage, causes radiating subassembly 34 that digitized radiating efficiency is provided.Yet, in actual applications, radiating subassembly can be provided with single second electrode retaining collar around whole fluid channel, and adjust the height that fluid arrives in fluid channel according to the voltage swing of second electrifying electrodes, because the height that fluid arrives in fluid channel is not a stage, causes radiating subassembly that simulated radiating efficiency is provided.
With reference to Fig. 4, Fig. 4 has described the schematic diagram according to the cooling system 3 of another specific embodiment of the present invention.As shown in Figure 4, the difference of this specific embodiment and a last specific embodiment is that the cooling system 3 of this specific embodiment has a plurality of radiating subassemblies 34.Can help a plurality of heat generating component 4 heat radiations by these radiating subassemblies 34.Other unit of this specific embodiment is identical with the corresponding Elementary Function of above-mentioned specific embodiment, does not repeat them here.
With reference to Fig. 5 A, Fig. 5 A has described the schematic diagram according to the cooling system 3 of another specific embodiment of the present invention.Shown in Fig. 5 A, the difference of this specific embodiment and a last specific embodiment is that this concrete heat generating component 4 of implementing is included on the circuit board 5, in addition, and with each heat generating component 4 corresponding radiating subassemblies 34 also contact circuit plate 5.Other unit of this specific embodiment is identical with the corresponding Elementary Function of above-mentioned specific embodiment, does not repeat them here.
With reference to Fig. 5 B, Fig. 5 B has described the vertical view of the cooling system 3 help heat radiations of Fig. 5 A.Shown in Fig. 5 B, a plurality of heat generating components 4 are arranged at the one side of printed circuit board (PCB) 5 and the another side that cooling system 3 is arranged at circuit board 5.Radiating subassembly 34 can be according to heat generating component 4 decision external form and sizes.Note that in actual applications the external form of radiating subassembly 34 and size are decided according to user or designer's demand, and are not subject to this specific embodiment.
With reference to Fig. 6, Fig. 6 has described the schematic diagram according to the cooling system 3 of another specific embodiment of the present invention.As shown in Figure 6, heat generating component 4 is packaged on the circuit board 5, in this specific embodiment, heat generating component 4 is that a chip and circuit board 5 are flexible circuit boards, in addition, (Chip on Film, COF) encapsulation manufacturing process is packaged on the circuit board 5 heat generating component 4 by membrane of flip chip.The difference of this specific embodiment and aforesaid specific embodiment is that radiating subassembly 34 direct contact heating assemblies 4 are to help heat generating component 4 heat radiations.
With reference to Fig. 7, Fig. 7 has described the flow chart of steps according to the heat dissipating method of a specific embodiment of the present invention.As shown in Figure 7, the heat dissipating method of this specific embodiment is in order to help the heat generating component heat radiation, and it comprises the following step: step S70 prepares fluid cavity and extends fluid channel from fluid cavity branch; Step S72 is provided with first electrode in fluid cavity, and the sidewall of at least one second electrode in fluid channel is set; Step S74 adds fluid and fluid cavity is installed in heat generating component and causes fluid channel to press close to heat generating component in fluid cavity, wherein, and the direct contacting with fluid of first electrode; And step S76 causes fluid to arrive predeterminated position in the fluid channel to the different electrical voltages of first electrode and second electrode input.Wherein, when heat dissipating method carried out step S76, first electrode can provide electric charge to fluid.It should be noted that in actual applications, the setting of fluid cavity, fluid channel, first electrode and second electrode is not limited to this specific embodiment, can decide according to designer or producer's demand.
In this specific embodiment, because fluid has electric charge, and second electrode has the voltage loads with opposite charge polarity, and therefore according to the voltage loads degree and the wet effect of electricity of second electrode, fluid can enter the fluid channel from fluid cavity.In addition, a plurality of second electrodes are provided with in regular turn at interval at the sidewall of fluid channel, and therefore, fluid can arrive the predeterminated position in the fluid channel according to the quantity (that is voltage loads degree) of second electrifying electrodes and digitized radiating efficiency is provided.Note that in actual applications the user can adjust this predeterminated position by the voltage loads degree of regulating and control second electrode, provides different radiating efficiencys with the chip at the different heat degree.In addition, in actual applications, when radiating subassembly only is provided with single second electrode retaining collar around whole fluid channel, can adjust the height that fluid arrives in fluid channel according to the voltage swing of second electrifying electrodes, because the height that fluid arrives in fluid channel is not a stage, causes radiating subassembly that simulated radiating efficiency is provided.
Further, in actual applications, by adjusting the voltage loads degree, also can control simultaneously the predeterminated position of fluid in fluid cavity and fluid channel come and go with and round frequency, the realistic demands of applications to adjust radiating efficiency.In addition, fluid channel also can be smooth in heat generating component, control second electrifying electrodes by sequencing again and then can flow through the speed of fluid channel by the wet effect indirect adjustments and controls fluid of electricity, and at the heat generating component that the different heat degree is provided or the functional areas of heat generating component provide adjustable radiating efficiency.
Similarly, in actual applications, the quantity of second electrode, the position of setting and each second interelectrode arrangement are decided according to user or designer's demand.In actual applications, heat generating component can comprise chips such as microprocessor, microcontroller or other system processor; The routine wall of fluid channel can be made by dielectric material; Fluid is in order to the cooling heat generating component, and for example water, electrolyte etc. have the conductor fluid of polarity.
In addition, with reference to Fig. 8, Fig. 8 has described the flow chart of steps according to the heat dissipating method of another specific embodiment of the present invention.As shown in Figure 8, the difference of this specific embodiment and a last specific embodiment is that heat dissipating method further comprises the following step: step S80, and setting can be held the storage element of fluid, and it is communicated with fluid cavity, in order to accommodating fluid to fluid cavity; And step S82 is provided with control unit and is electrically connected second electrode to control the voltage loads degree of second electrode.In actual applications, the control unit of step S82 also can be electrically connected first electrode controlling the voltage of first electrode, and then controls the quantity of electric charge that first electrode gives fluid.Similarly, in actual applications, the setting of storage element and control unit is not limited to this specific embodiment, decides according to designer or producer's demand.
Than prior art, radiating subassembly of the present invention, cooling system and heat dissipating method give the polar fluid electric charge by electrode, and the wet effect of utilization electricity, can make polar fluid near heating region, and then heat generating component, the adjustable radiating efficiency of heat generating component high density area or heat generating component functional areas are provided.
By the detailed description of above preferred specific embodiment, be to wish to know more to describe feature of the present invention and spirit, and be not to come scope of the present invention is limited with above-mentioned disclosed preferred specific embodiment.On the contrary, its objective is that hope can contain various changes and be equal in the scope that is alternative in the claim that the present invention applies for.Therefore, the scope of the claim that the present invention applied for should be done the broadest explanation according to above-mentioned explanation, contains all possible change and is equal to alternative to cause it.
The primary clustering symbol description
1,34: radiating subassembly 10,340: fluid cavity
12,120,122,342: fluid channel
14,344: the first electrodes 16,346: the second electrodes
18,348: control module 100,300: fluid
2,4: heat generating component 20: functional areas
3: cooling system 30: storage element
32: supply line 5: circuit board
S70～S76, S80, S82: process step
Claims (16)
1. a radiating subassembly dispels the heat in order to assist heat generating component, and this radiating subassembly comprises: fluid cavity, in order to hold fluid;
At least one fluid channel is extended from described fluid cavity branch;
First electrode is arranged on the described fluid cavity, and described first electrode contacts described fluid;
At least one second electrode be arranged at the sidewall of described fluid channel, and the polarity of described second electrode is opposite with the polarity of described first electrode; And
Control unit is electrically connected described second electrode, in order to control the described voltage loads degree of described second electrode;
Wherein when described first electrode and described second electrifying electrodes, described first electrode can provide electric charge to the described fluid, and described fluid enters the described fluid channel from described fluid cavity according to the voltage loads degree of described second electrode and arrives predeterminated position.
2. radiating subassembly according to claim 1, wherein said fluid channel is pressed close to described heat generating component.
3. radiating subassembly according to claim 2, wherein said control unit is controlled described voltage loads degree according to the heat distribution situation of described heat generating component, to adjust the height of described fluid in described fluid channel, flow rate and/or to come and go the frequency of described predeterminated position from described fluid cavity.
4. radiating subassembly according to claim 1, wherein said fluid is a polar fluid.
5. radiating subassembly according to claim 1, wherein said second electrode is arranged at intervals at the sidewall of described fluid channel in regular turn.
6. radiating subassembly according to claim 1, the sidewall of wherein said fluid channel is made by dielectric material.
7. radiating subassembly according to claim 1 further comprises:
Storage element is in order to store described fluid;
Supply line connects described storage element and described fluid cavity, in order to supply described fluid to described fluid cavity.
8. radiating subassembly according to claim 7, wherein said supply line further comprises:
At least one third electrode be arranged at the sidewall of described supply line, and the polarity of described third electrode is opposite with the polarity of described first electrode.
9. radiating subassembly according to claim 1, wherein said fluid cavity is pressed close to described heat generating component.
10. a heat dissipating method dispels the heat in order to assist heat generating component, and described heat dissipating method comprises the following step:
The preparation fluid cavity to be holding fluid, and at least one fluid channel is extended by described fluid cavity branch;
First electrode is set in described fluid cavity, contacts described fluid;
At least one second electrode is set in the sidewall of described fluid channel, and the polarity of described second electrode is opposite with the polarity of described first electrode;
Control unit is set is electrically connected described second electrode, in order to control the described voltage loads degree of described second electrode; And
Make described first electrode and described second electrifying electrodes, cause described first electrode can provide electric charge to the described fluid, and described fluid enters the described fluid channel from described fluid cavity according to the voltage loads degree of described second electrode and arrives predeterminated position.
11. heat dissipating method according to claim 10 further comprises the following step:
Storage element is set holding described fluid, and described storage element is communicated with described fluid cavity, to supply described fluid to described fluid cavity.
12. heat dissipating method according to claim 11 further comprises the following step:
Described fluid channel is pressed close to described heat generating component.
13. heat dissipating method according to claim 11, wherein said control unit is controlled described voltage loads degree according to the heat distribution situation of described heat generating component, to adjust the height of described fluid in described fluid channel, flow rate and/or to come and go the frequency of described predeterminated position from described fluid cavity.
14. heat dissipating method according to claim 10, wherein said fluid is a polar fluid.
15. heat dissipating method according to claim 10, wherein said second electrode is arranged at intervals at the sidewall of described fluid channel in regular turn.
16. heat dissipating method according to claim 10 further comprises the following step:
Described fluid cavity is pressed close to heat generating component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100073153A CN101528017B (en) | 2008-03-04 | 2008-03-04 | Radiating component and radiating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100073153A CN101528017B (en) | 2008-03-04 | 2008-03-04 | Radiating component and radiating method |
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| CN101528017A CN101528017A (en) | 2009-09-09 |
| CN101528017B true CN101528017B (en) | 2011-01-05 |
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| CN106328615B (en) * | 2016-09-22 | 2019-01-08 | 嘉兴学院 | It is a kind of for cooling down the aeroge electroosmotic pump of microelectronic chip |
| CN115132870A (en) * | 2022-07-07 | 2022-09-30 | 陕西煤业新型能源科技股份有限公司 | Solar photovoltaic micro-channel cooling device based on electroosmosis driving |
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