CN102200816A - Computer, heat-radiating module and automatic dust-removing method - Google Patents
Computer, heat-radiating module and automatic dust-removing method Download PDFInfo
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- CN102200816A CN102200816A CN2010101343693A CN201010134369A CN102200816A CN 102200816 A CN102200816 A CN 102200816A CN 2010101343693 A CN2010101343693 A CN 2010101343693A CN 201010134369 A CN201010134369 A CN 201010134369A CN 102200816 A CN102200816 A CN 102200816A
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Abstract
The invention provides a computer, a heat-radiating module and an automatic dust-removing method. The computer comprises a heating component, a heat-radiating device which is connected with the heating component and used for bringing the heat generated by the heating component outside the computer, a detecting module for detecting system heat resistance of the computer and giving a dust-removing signal when detecting that the current system heat resistance is greater than a critical heat resistance, and an automatic dust-removing device connected with the heat-radiating device and the detecting module respectively and used for carrying out the dust-removing operation on the heat-radiating device. The scheme of the invention realizes the purpose of automatic dust removing of the heat-radiating device in the computer.
Description
Technical field
The present invention relates to computer realm, be meant a kind of computing machine especially, the method for heat radiation module and automatic dedusting.
Background technology
When dust accumulation is to cause one of arch-criminal of computer product heat radiation failure, and present computer product does not still have dedusting function, and the computer user also and do not know this cleaning dust more can't clear up dust voluntarily, maintains computer.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of computing machine, and the method for heat radiation module and automatic dedusting can make computing machine dedusting automatically, improves the radiating efficiency of computing machine.
For solving the problems of the technologies described above, embodiments of the invention provide technical scheme as follows:
On the one hand, provide a kind of computing machine, comprising:
Heat generating components;
Heat abstractor is connected with described heat generating components, is used for the heat that described heat generating components produces is taken out of outside the described computing machine;
Detection module is used for detection computations machine system thermal resistance, when detecting current system thermal resistance greater than a critical thermal resistance, sends the dedusting signal;
Automatic dust removing apparatus is connected with described detection module with described heat abstractor respectively, is used for according to described dedusting signal described heat abstractor being carried out dust removal operation.
Preferably, described automatic dust removing apparatus comprises: drive unit, transmission shaft, dust removal brush;
Wherein, described drive unit is connected with described transmission shaft, and described dust removal brush is connected with described transmission shaft;
Described drive unit drives the rotation of described transmission shaft according to described dedusting signal, drives described dust removal brush during described transmission shaft rotation from first end brush of described heat abstractor, second end to described heat abstractor, perhaps from described second end brush to described first end.
Preferably, described automatic dust removing apparatus also comprises: primary importance induction installation and second place induction installation;
Wherein, described primary importance induction installation is arranged at first end of described heat abstractor, and described second place induction installation is arranged at second end of described heat abstractor;
When described primary importance induction installation is used for sensing described dust removal brush at the described first end position place, produce first induced signal, described drive unit is according to described first induced signal, changes the sense of rotation of described transmission shaft into second direction by first direction;
When described second place induction installation is used for sensing described dust removal brush at the described second end position place, produce second induced signal, described drive unit is according to described second induced signal, changes the sense of rotation of described transmission shaft into first direction by second direction.
Preferably, the aforementioned calculation machine also comprises: fan base, fan frame and flabellum; Wherein, described fan base and described fan frame form an accommodation space, and described flabellum is arranged on the described fan base, is positioned at described accommodation space;
Described heat abstractor is fixedlyed connected with described fan frame, and described transmission shaft passes described fan frame and is connected with described dust removal brush;
Described primary importance induction installation and described second place induction installation lay respectively at described fan frame outside surface, and fixedly connected with described fan frame.
Preferably, described automatic dust removing apparatus also comprises: leading axle, passing described fan frame is connected with described dust removal brush, be used to guide described dust removal brush to aim at described heat abstractor from first end brush of described heat abstractor second end to described heat abstractor, perhaps from described second end brush to described first end.
Preferably, described flabellum is connected with an axle center, and described axle center is connected with a bearing, and described bearing is connected with fan base, described fan base ground connection; Described flabellum, axle center, bearing and base constitute a conductive path.
Preferably, described pick-up unit comprises:
First measurement mechanism is used to obtain flabellum temperature on every side;
Second measurement mechanism is used to obtain the DIE Temperature of the CPU of described computing machine;
The 3rd measurement mechanism is used to obtain the power of CPU;
Treating apparatus is used for obtaining current thermal resistance R by formula R=(Tj-Tsys)/Power, and during greater than critical thermal resistance R0, sends dedusting signal to described drive unit at current thermal resistance R;
Wherein Tj is the parameter of the DIE Temperature of representative CPU, and Tsys is the parameter of the temperature around the representative fan, and Power is the parameter of the power of the described CPU of representative, and R0 is the critical heat resistance.
Preferably, described heat abstractor has the discharge-channel of discharging dust, and the dust that described heat abstractor is undertaken by described automatic dust removing apparatus producing after the dust removal operation emits by described discharge-channel.
Preferably, described heat abstractor comprises a plurality of tactic radiating fins, and an end of described radiating fin has dust exhausting hole, and the dust exhausting hole of a plurality of described radiating fins is formed described discharge-channel.
On the other hand, embodiments of the invention also provide a kind of heat radiation module, are applied in the electronic equipment, and this heat radiation module comprises:
Heat abstractor;
Fan;
Automatic dust removing apparatus is arranged between described heat abstractor and the described fan, is connected with described heat abstractor, and the dedusting signal that produces when being used for according to the current system of described electronic equipment thermal resistance greater than a critical thermal resistance carries out dust removal operation to described heat abstractor;
Described automatic dust removing apparatus carries out the dust that produces after the dust removal operation to described heat abstractor, under the effect of described fan wind-force, discharges described electronic equipment.
Preferably, described automatic dust removing apparatus comprises: drive unit, transmission shaft, dust removal brush, primary importance induction installation and second place induction installation; Wherein, described drive unit is connected with described transmission shaft, and described dust removal brush is connected with described transmission shaft, and described primary importance induction installation is arranged at first end of described heat abstractor, and described second place induction installation is arranged at second end of described heat abstractor;
Described drive unit drives the rotation of described transmission shaft, drives described dust removal brush during described transmission shaft rotation from first end brush of dust device, second end to described dust device, perhaps from described second end brush to described first end;
When described primary importance induction installation is sensed described dust removal brush at the described first end position place, produce first induced signal, described drive unit is according to described first induced signal, changes the sense of rotation of described transmission shaft into second direction by first direction;
When described second place induction installation is sensed described dust removal brush at the described second end position place, produce second induced signal, described drive unit is according to described second induced signal, changes the sense of rotation of described transmission shaft into first direction by second direction.
On the one hand, embodiments of the invention also provide a kind of method of automatic dedusting, are applied in the electronic equipment again, and this method comprises:
The dedusting signal that the current system thermal resistance that receives described electronic equipment produces during greater than a critical thermal resistance;
According to described dedusting signal, the heat abstractor of described electronic equipment is carried out dust removal operation.
The step that produces the dedusting signal when preferably, current system thermal resistance is greater than a critical thermal resistance comprises:
Obtain the DIE Temperature of heat generating components of temperature around the electric fan of described electronic equipment and described electronic equipment and the power of this heat generating components;
Obtain the current thermal resistance R of system by formula R=(Tj-Tsys)/Power, and during greater than critical thermal resistance R0, produce the dedusting signal at the current thermal resistance R of system; Wherein Tj is the parameter of the DIE Temperature of representative heat generating components, and Tsys is the parameter of the temperature around the representative flabellum, and Power is the parameter of the power of the described heat generating components of representative, and R0 is the critical heat resistance.
Preferably, according to described dedusting signal, the heat abstractor of described electronic equipment is carried out dust removal operation specifically comprises:
The drive unit of described automatic dust removing apparatus is according to described dedusting signal, drive the transmission shaft rotation of described automatic dust removing apparatus, when described transmission shaft rotates, the dust removal brush that drives described automatic dust removing apparatus is from first end brush of described heat abstractor, second end to described heat abstractor, perhaps brush to described first end from described second end, and with the dust that produces, the discharge-channel by described heat abstractor emits.
Embodiments of the invention have following beneficial effect:
Such scheme of the present invention is provided with automatic dust removing apparatus by the heat abstractor place at computing machine, detection module is when detecting current system thermal resistance greater than critical thermal resistance, this heat dissipation system for computers is described because the low problem of radiating efficiency has appearred in the accumulation of dust, therefore, send a dedusting signal; This automatic dust removing apparatus detects the dedusting signal that sends according to detection module, heat abstractor is carried out dust removal operation, thereby the dust on the heat abstractor is cleared away automatically, has reached the purpose to the automatic dedusting of computing machine, thereby has improved the radiating efficiency of computing machine.
Description of drawings
Fig. 1 is the johning knot composition of fan, heat abstractor and automatic dust removing apparatus in the computing machine of the present invention;
Fig. 2 is the syndeton overall appearance figure of fan shown in Figure 1, heat abstractor and automatic dust removing apparatus;
Fig. 3 is specially the enlarged drawing of radiating fin group for heat abstractor described in Fig. 1;
Fig. 4 is the enlarged drawing of primary importance induction installation or second place induction installation in the structure shown in Figure 1;
Fig. 5 is the enlarged drawing of dust removal brush described in Fig. 1;
Fig. 6 is a fan base ground connection among Fig. 1, fan is carried out the circuit diagram of conductive processing;
Fig. 7 is for further including the structural drawing of pick-up unit in computing machine shown in Figure 1;
Fig. 8 is the fan in the desk-top computer, the annexation figure between automatic dust removing apparatus and heat abstractor;
Fig. 9 is the structural drawing of discharge-channel of the heat abstractor of desk-top computer;
Figure 10 is first's process flow diagram of the method for the automatic dedusting of embodiments of the invention;
Figure 11 is the second portion process flow diagram of the method for the automatic dedusting of embodiments of the invention.
Embodiment
For technical matters, technical scheme and advantage that embodiments of the invention will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiments of the invention provide a kind of and can make computing machine dedusting automatically at the problem of dedusting automatically of computing machine in the prior art, and the computing machine that utilizes the radiating efficiency that improves computing machine is arranged, the method for heat radiation module and automatic dedusting.
As shown in Figure 1 and Figure 2, Fig. 1 is a heat abstractor in a kind of computing machine of embodiments of the invention, and the decomposition chart of automatic dust removing apparatus, Fig. 2 are the overall appearance figure of Fig. 1; The embodiments of the invention computing machine comprises: heat generating components is (not shown, the CPU of this heat generating components such as computing machine etc.), heat abstractor 11, detection module (figure) automatic dust removing apparatus, wherein, heat abstractor is connected with described heat generating components, is used for the heat that described heat generating components produces is taken out of outside the described computing machine; Detection module is used for detection computations machine system thermal resistance, when detecting current system thermal resistance greater than a critical thermal resistance, sends the dedusting signal; This automatic dust removing apparatus is connected with described detection module with described heat abstractor respectively, is used for according to described dedusting signal described heat abstractor being carried out dust removal operation.
This embodiment of the present invention is by increasing detection module in computing machine, the place is provided with automatic dust removing apparatus at heat abstractor, the automatic dedusting signal that this automatic dust removing apparatus produces when detecting current system thermal resistance greater than a critical thermal resistance according to this detection module, heat abstractor is carried out automatic dedusting, thereby the dust on the heat abstractor is cleared away automatically, reached purpose, thereby improved the radiating efficiency of computing machine the automatic dedusting of computing machine.
Again as shown in Figure 1, above-mentioned automatic dust removing apparatus comprises: drive unit 12, transmission shaft 13, dust removal brush 14;
Wherein, described drive unit 12 is connected with described transmission shaft 13, and described dust removal brush 14 is connected with described transmission shaft 13;
Described drive unit 12 is according to described dedusting signal, drive described transmission shaft 13 rotations, drive described dust removal brush 14 during 13 rotations of described transmission shaft from first end brush of described heat abstractor 11 second end to described heat abstractor 12, perhaps from described second end brush to described first end.
Wherein, described heat abstractor 11 has the discharge-channel 111 of discharging dust, and described heat abstractor 11 is carried out the dust that produces after the dust removal operation after inswept by dust removal brush 14 by described automatic dust removing apparatus, emit by logical 111 roads of described discharging; Especially under the fan wind action, emit by described discharge-channel 111, this moment can be cleaner with the dust cleaning.
In addition, described automatic dust removing apparatus also comprises: primary importance induction installation 151 and second place induction installation 152; Wherein, described primary importance induction installation 151 is arranged at first end of described heat abstractor 11, and described second place induction installation 152 is arranged at second end of described heat abstractor 11;
When described primary importance induction installation 151 is used for sensing at the described first end position place described dust removal brush 14, produce first induced signal, described drive unit 12 is according to described first induced signal, changes the sense of rotation of described transmission shaft 13 into second direction by first direction;
When described second place induction installation 152 is used for sensing at the described second end position place described dust removal brush 14, produce second induced signal, described drive unit 12 is according to described second induced signal, changes the sense of rotation of described transmission shaft 13 into first direction by second direction.
Specifically, as shown in Figure 1, primary importance induction installation 151 is positioned at the right-hand member (i.e. first end) of heat abstractor 11, second place induction installation 152 is positioned at the left end (i.e. second end) of heat abstractor 11, when drive unit 12 is rotated in the forward (as turning clockwise) at driving transmission shaft 13, this dust removal brush 14 moves to the left end of heat abstractor 11 and the radiating fin of inswept heat abstractor 11 from the right-hand member of heat abstractor 11; After this dust removal brush 14 moves to the left end of heat abstractor 11, second place induction installation 151 is sensed this dust removal brush 14, produce second induced signal, drive unit 12 will be according to this second induced signal, change the sense of rotation of transmission shaft 13 into reverse rotation (as being rotated counterclockwise), dust removal brush 14 under the effect of this transmission shaft 13, inswept from left to right heat abstractor 11, and arrive the right-hand member of heat abstractor 11; It is right-hand member that certain first end of heat abstractor 11 here is not limited to, it also can be left end, it is left end that second end also is not limited to, it also can be right-hand member, first end is the relative two ends of heat abstractor 11 with second end, it is to be rotated in the forward that the sense of rotation that begins to drive also is not limited to, and also can be reverse rotation.
Again as shown in Figure 1, the aforementioned calculation machine also comprises: the flabellum 18 of fan base 16, fan frame 17 and fan;
Wherein, described fan base 16 forms an accommodation space with described fan frame 17, and described flabellum 18 is arranged on the described fan base 16, is positioned at described accommodation space; Described heat abstractor 11 is fixedlyed connected with described fan frame 17, and described transmission shaft 13 passes described fan frame 17 and is connected with described dust removal brush 14, has the hole that can supply transmission shaft 13 to pass on its middle fan frame 17; Described primary importance induction installation 151 and described second place induction installation 152 lay respectively at described fan frame 17 outside surfaces, and fixedly connected with described fan frame 17, specifically, this primary importance induction installation 151 is fixedlyed connected with fan frame 17 by the screw mode with second place induction installation 152.
In addition, again as shown in Figure 1, described automatic dust removing apparatus also comprises: leading axle 19, passing described fan frame 17 is connected with described dust removal brush 14, be used to guide the bristle of described dust removal brush 14 to aim at described heat abstractor 11 from first end brush of described heat abstractor 11 second end to described heat abstractor 11, perhaps from described second end brush to described first end; Dust on the heat abstractor 11 just can be swept by dust removal brush 14 like this, and emits by the discharge-channel 111 of heat abstractor 11, reaches automatic dust removing effects.
Specifically, described heat abstractor 11 comprises a plurality of tactic radiating fins, and an end of described radiating fin has dust exhausting hole, and the dust exhausting hole of a plurality of described radiating fins is formed described discharge-channel, and the concrete enlarged drawing of this heat abstractor 11 as shown in Figure 3.
In addition, above-mentioned primary importance induction installation 151 is identical position induction devices with second place induction installation 152, as shown in Figure 4, be above-mentioned primary importance induction installation 151, perhaps the structure enlarged drawing of second place induction installation 152: wherein, this primary importance induction installation 151 or second place induction installation 152 comprise: PCB (Printed circuit board, printed circuit board (PCB)) plate 1511, middle hole 1512, sensor 1513, and with the fixing screw hole 1514 of usefulness of fan frame 17; Drive unit 12 drives transmission shaft 13 and is passed by this hole 1512.
As shown in Figure 5, be the enlarged drawing of dust removal brush 14, this dust removal brush 14 specifically includes the brush body, first hole 141 on the brush body, second hole 142 on the brush body, and bristle 143; Wherein, transmission shaft 13 passes moving dust removal brush 14 motions of this first pore area, and leading axle 19 passes this second hole 141, guides the bristle 143 of this dust removal brush 14 can aim at heat abstractor and sweeps up dust.
As shown in Figure 6, the fan in the present embodiment is the fan with self-cleaning function, because static can adsorb dust, and fan area inevitably has static to exist, and for fear of the Electrostatic Absorption dust, reduces being infected with of the whole dust of fan, and fan is made conductive processing; As shown in the figure, the conductive path of described fan comprises: flabellum 18, fan base 16, bearing 23 and axle center 24, wherein, flabellum 18 is connected with axle center 24, axle center 24 is connected with bearing 23, and bearing 23 is connected with base 16, base 16 ground connection, flabellum 18, axle center 24, bearing 23 and fan base 16 all conduct electricity, and they can constitute a conductive path;
Further, this conductive path also comprises magnet 25 and coil 26; Wherein, flabellum 18 and magnet 25 and axle center 24 link together by rotor 182, and base 16 and bearing 23 and coil 26 are the integral body (can be referred to as stator) that links together; Wherein, flabellum 18 and axle center 24 require conduction and conducting, bearing 23 and base 16 be the conduction and mutual conduction, the ground wire on the left side (GND) other end is the fan ambient air, the ground wire of air and computer inside keeps in touch, base 16 is ground connection (GND) also, and magnet and coil function are to produce magnetic field, provide power for fan rotates; During flabellum 18 runnings there be continuously or the conducting that is interrupted with bearing 23 (perhaps base 16) axle center 24, like this, flabellum 18, axle center 24, bearing 23 and fan base 16 constitute a conductive path, and static just can be led away, makes flabellum can not be infected with a large amount of dusts.
Wherein, the material of above-mentioned flabellum 18 can be the material of metal or carbon fiber etc. conduction itself, also can be that the material of fan own is non-conductive but at surface plating one deck conductive layer; The material of base 16 can be the material of metal or carbon fiber etc. conduction itself, also can be that material own is non-conductive but at surface plating one deck conductive layer.
In the above embodiment of the present invention, fan frame 17 can separate with fan base 16, can fit together with modes such as screws, also can be non-removable (fan base 16 is one with fan frame 17).
As shown in Figure 7, among the aforementioned calculation machine embodiment of the present invention: pick-up unit specifically is connected with the drive unit 12 of stating of automatic dust removing apparatus, when being used to detect the current thermal resistance of system greater than critical thermal resistance, send the dedusting signal to described drive unit, described drive unit drives described transmission shaft rotation according to described dedusting signal; Specifically, described pick-up unit comprises:
First measurement mechanism (as the Tsys sensor among the figure) is used to obtain fan temperature on every side;
Second measurement mechanism (as the CPU Tj sensor among the figure) is used to obtain the DIE Temperature of the CPU of described computing machine;
The 3rd measurement mechanism (as the cpu power measurement module among the figure) is used to obtain the power of CPU;
Treating apparatus is used for obtaining current thermal resistance R by formula R=(Tj-Tsys)/Power, and during greater than critical thermal resistance R0, sends dedusting signal to described drive unit at current thermal resistance R;
Wherein Tj is the parameter of the DIE Temperature of representative CPU, and Tsys represents the parameter of the temperature around the fan, and Power is the parameter of the power of the described CPU of representative, and R0 is default critical heat resistance;
Among this embodiment, Tj places the DIE Temperature value that temperature sensor on the CPU measures CPU, also can be the equivalent temperature parameter that the voltage transitions by this temperature sensor gets; Tsys specifically also can be the temperature value that is positioned over around the fan that the temperature sensor around the electric fan measures, and also can be the equivalent temperature parameter that the voltage transitions by this temperature sensor gets; Power specifically can be the performance number of the CPU that measures of cpu power measurement module, also can be voltage or the current value that this power measurement module measures; Heat pipe among the figure is a part of element that comprises in the conventional heat abstractor of notebook computer, function is to radiating fin the heat transferred of thermal source, weld with radiating fin, heat pipe and the CPU formation heat passage that contacts, heat pipe is conducting to radiating fin with the heat of CPU, heat is taken to heat outside the computing machine by radiating fin under the effect of fan wind-force.
In the above embodiment of the present invention, drive unit 12 is specifically as follows drive motor or servomotor, this automatic dust removing apparatus also has a support 20 (as shown in Figure 1), be used for fixing this drive motor or servomotor, fan cover 21 is used to be buckled in fan frame 17, forms outside drawing as shown in Figure 2.
As Fig. 8 and shown in Figure 9, fan and relation of the position between the radiating fin group and annexation for desktop computer, wherein, automatic dust removing apparatus (comprises fan base at fan, fan frame and flabellum) and radiating fin in the middle of, other position component relation is provided with according to the requirement of desktop computer, and the concrete structure of automatic dust removing apparatus does not repeat them here with above-mentioned shown in Figure 1 identical.
Below in conjunction with above-mentioned Fig. 1 and Figure 10 and Figure 11 explanation, the method flow of the automatic dedusting of the above embodiment of the present invention, this automatic dust removing method are applied in the electronic equipment, and this automatic dust removing method comprises:
The dedusting signal that step 101, the current system thermal resistance that receives described electronic equipment produce during greater than a critical thermal resistance;
Step 102 according to described dedusting signal, is carried out dust removal operation to the heat abstractor of described electronic equipment.
Wherein, in the above-mentioned steps 101, the step that current system thermal resistance produces the dedusting signal during greater than a critical thermal resistance comprises:
Obtain the DIE Temperature of heat generating components of temperature around the electric fan of described electronic equipment and described electronic equipment and the power of this heat generating components;
Obtain the current thermal resistance R of system by formula R=(Tj-Tsys)/Power, and during greater than critical thermal resistance R0, produce the dedusting signal at the current thermal resistance R of system; Wherein Tj is the parameter of the DIE Temperature of representative heat generating components, and Tsys is the parameter of the temperature around the representative flabellum, and Power is the parameter of the power of the described heat generating components of representative, and R0 is the critical heat resistance.
Above-mentioned steps 102 is specially: according to described dedusting signal, the heat abstractor of described electronic equipment is carried out dust removal operation specifically comprise:
The drive unit of described automatic dust removing apparatus is according to described dedusting signal, drive the transmission shaft rotation of described automatic dust removing apparatus, when described transmission shaft rotates, the dust removal brush that drives described automatic dust removing apparatus is from first end brush of described heat abstractor, second end to described heat abstractor, perhaps brush to described first end from described second end, and with the dust that produces, the discharge-channel by described heat abstractor emits.
Specifically, as shown in figure 10, this flow process comprises:
Dust accumulation trace routine triggers;
Setting rotating speed of fan and CPU add certain loads;
Obtain the value of first measurement mechanism of temperature in the detection system, obtain the value of second measurement mechanism that detects the heat source temperature that is cooled (but perhaps other physical quantitys of representation temperature), obtain the value (or can represent other physical quantitys of the power) of the 3rd measurement mechanism that detects the power of heat source that is cooled;
Treating apparatus calculates current thermal resistance, and whether more current thermal resistance greater than critical thermal resistance, if not then alert device (can be notebook computer itself, or optional equipment) reminds the user temporarily not need dedusting; If then remind user's dust too much please the user confirm whether have article to block inlet and outlet;
Confirming do not have article to block inlet and outlet the user, then may be because dust too much causes the current thermal resistance of system greater than critical thermal resistance, therefore, can enter automatic cleaning dust flow process; Otherwise, detect once more, if do not need to detect once more, then abandon and finish current flow process.
As shown in figure 11, for clearing up the dust flow process automatically, this flow process comprises:
Pick-up unit sends the enabled instruction of automatic cleaning dust;
Fan accelerates to maximum (top) speed, and dedusting begins;
Drive motor starts, and begins to be rotated in the forward;
Dust removal brush leaves the right-hand member of heat abstractor under the drive of the transmission shaft of drive motor, to the left end motion of heat abstractor;
The agglomerate dust emissions passage of the right-hand member of heat abstractor is opened, and certainly, this dust emissions passage also can be the left end that is positioned at heat abstractor;
The radiating fin of the inswept heat abstractor of dust removal brush, the dust on the radiating fin can be accumulated in together;
Dust removal brush moves to the left end of heat abstractor, and the second place induction installation (as position transducer) of left end triggers, and produces second induced signal;
Drive motor is according to this second induced signal commutation counter-rotating, and dust removal brush moves from left to right;
Dust removal brush is the radiating fin of inswept heat abstractor once more, and dust removal brush is got back to the right-hand member of heat abstractor, and the dust on the radiating fin can emit by discharge-channel under the effect of fan wind-force;
The agglomerate dust emissions pathway closure of heat abstractor right-hand member, certainly, can not close this moment yet, and this dust removal brush can also continue to carry out dedusting work to left movement, and the current thermal resistance in system can be closed this dust emissions passage less than critical thermal resistance;
The primary importance induction installation of heat abstractor right-hand member (as the position transducer of right-hand member) is triggered, and produces first induced signal;
Drive motor can be according to this first induced signal commutation counter-rotating, also can stop the rotation (when dedusting finishes, can stop the rotation according to this first induced signal);
It is normal that rotation speed of the fan recovers, and dedusting finishes to recover to await orders.
In addition, embodiments of the invention also provide a kind of heat radiation module, and this heat radiation module is applied in the electronic equipment, and this heat radiation module comprises: heat abstractor; Fan; Automatic dust removing apparatus is arranged between described heat abstractor and the described fan, is connected with described heat abstractor, and the dedusting signal that produces when being used for according to the current system of described electronic equipment thermal resistance greater than a critical thermal resistance carries out dust removal operation to described heat abstractor;
Described automatic dust removing apparatus carries out the dust that produces after the dust removal operation to described heat abstractor, under the effect of described fan wind-force, discharges described electronic equipment.
Wherein, this automatic dust removing apparatus comprises: drive unit, transmission shaft, dust removal brush; Wherein, described drive unit is connected with described transmission shaft, and described dust removal brush is connected with described transmission shaft;
Described drive unit drives the rotation of described transmission shaft, drives described dust removal brush during described transmission shaft rotation from first end brush of dust device, second end to described dust device, perhaps from described second end brush to described first end.
Wherein, described dust device has the discharge-channel of discharging dust, and the dust on the described dust device emits by described discharge-channel.
When this automatic dust removing apparatus was applied in the computing machine, this dust device specifically can be the heat abstractor that links together with fan in the computing machine.
In addition, this automatic dust removing apparatus also can comprise as above-mentioned leading axle, this leading axle passes described fan frame and is connected with described dust removal brush, be used to guide described dust removal brush to aim at described heat abstractor from first end brush of described heat abstractor second end to described heat abstractor, perhaps from described second end brush to described first end.
This automatic dust removing apparatus also can comprise as above-mentioned primary importance induction installation, parts such as second place induction installation, when described primary importance induction installation is sensed described dust removal brush at the described first end position place, produce first induced signal, described drive unit is according to described first induced signal, changes the sense of rotation of described transmission shaft into second direction by first direction;
When described second place induction installation is sensed described dust removal brush at the described second end position place, produce second induced signal, described drive unit is according to described second induced signal, changes the sense of rotation of described transmission shaft into first direction by second direction.These functions of components are also identical with the function of corresponding component among the aforementioned calculation machine embodiment, do not repeat them here.
In sum, above-mentioned Fig. 1 of the present invention-overall appearance embodiment illustrated in fig. 9, basic identical with conventional fan, so can accessiblely be applied in now the portable computer, do not cause design difficulty and cost increases such as extra mechanism.
After this invention provides the data that detect according to intrasystem pick-up unit to feed back to system, detect system via calculating/judgement and whether need dedusting, and in time remind the user, when the needs dedusting, the fan that has automatic cleaning dust function in the system can be removed the dust that is accumulated in the inside automatically.And, further the flabellum of fan has been done special dustproof design, fan self is kept clean, guarantee the work efficiency of fan.This invention also has following beneficial effect:
Portable computer self intelligent cleaning is reminded; Detect fast the accuracy rate height; Need not to disassemble portable computer and can clear up dust; The anti-dust of fan self is sticky with;
When being applied in the notebook computer, the present invention can point out the dust that accumulates in user's notebook computer to hinder normal heat radiation; The present invention can hinder the dust of cleaning heating radiator place accumulation automatically of normal when heat radiation at the dust of accumulation, ensures the normal of notebook heat sinking function, and without the teardown of engine, brings great convenience for user and customer service; The flabellum of fan of the present invention can reduce being infected with of dust in daily use, prolong the serviceable life of fan and reduce noise.
The above is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (14)
1. a computing machine is characterized in that, comprising:
Heat generating components;
Heat abstractor is connected with described heat generating components, is used for the heat that described heat generating components produces is taken out of outside the described computing machine;
Detection module is used for detection computations machine system thermal resistance, when detecting current system thermal resistance greater than a critical thermal resistance, sends the dedusting signal;
Automatic dust removing apparatus is connected with described detection module with described heat abstractor respectively, is used for according to described dedusting signal described heat abstractor being carried out dust removal operation.
2. computing machine according to claim 1 is characterized in that, described automatic dust removing apparatus comprises: drive unit, transmission shaft, dust removal brush;
Wherein, described drive unit is connected with described transmission shaft, and described dust removal brush is connected with described transmission shaft;
Described drive unit drives the rotation of described transmission shaft according to described dedusting signal, drives described dust removal brush during described transmission shaft rotation from first end brush of described heat abstractor, second end to described heat abstractor, perhaps from described second end brush to described first end.
3. computing machine according to claim 2 is characterized in that, described automatic dust removing apparatus also comprises: primary importance induction installation and second place induction installation;
Wherein, described primary importance induction installation is arranged at first end of described heat abstractor, and described second place induction installation is arranged at second end of described heat abstractor;
When described primary importance induction installation is used for sensing described dust removal brush at the described first end position place, produce first induced signal, described drive unit is according to described first induced signal, changes the sense of rotation of described transmission shaft into second direction by first direction;
When described second place induction installation is used for sensing described dust removal brush at the described second end position place, produce second induced signal, described drive unit is according to described second induced signal, changes the sense of rotation of described transmission shaft into first direction by second direction.
4. computing machine according to claim 3 is characterized in that, also comprises: fan base, fan frame and flabellum; Wherein, described fan base and described fan frame form an accommodation space, and described flabellum is arranged on the described fan base, is positioned at described accommodation space;
Described heat abstractor is fixedlyed connected with described fan frame, and described transmission shaft passes described fan frame and is connected with described dust removal brush;
Described primary importance induction installation and described second place induction installation lay respectively at described fan frame outside surface, and fixedly connected with described fan frame.
5. computing machine according to claim 4, it is characterized in that, described automatic dust removing apparatus also comprises: leading axle, passing described fan frame is connected with described dust removal brush, be used to guide described dust removal brush to aim at described heat abstractor from first end brush of described heat abstractor second end to described heat abstractor, perhaps from described second end brush to described first end.
6. computing machine according to claim 4 is characterized in that, described flabellum is connected with an axle center, and described axle center is connected with a bearing, and described bearing is connected with fan base, described fan base ground connection; Described flabellum, axle center, bearing and base constitute a conductive path.
7. computing machine according to claim 4 is characterized in that, described pick-up unit comprises:
First measurement mechanism is used to obtain flabellum temperature on every side;
Second measurement mechanism is used to obtain the DIE Temperature of the CPU of described computing machine;
The 3rd measurement mechanism is used to obtain the power of CPU;
Treating apparatus is used for obtaining current thermal resistance R by formula R=(Tj-Tsys)/Power, and during greater than critical thermal resistance R0, sends dedusting signal to described drive unit at current thermal resistance R;
Wherein Yj is the parameter of the DIE Temperature of representative CPU, and Tsys is the parameter of the temperature around the representative fan, and Power is the parameter of the power of the described CPU of representative, and R0 is the critical heat resistance.
8. computing machine according to claim 1 is characterized in that, described heat abstractor has the discharge-channel of discharging dust, and the dust that described heat abstractor is undertaken by described automatic dust removing apparatus producing after the dust removal operation emits by described discharge-channel.
9. computing machine according to claim 8 is characterized in that, described heat abstractor comprises a plurality of tactic radiating fins, and an end of described radiating fin has dust exhausting hole, and the dust exhausting hole of a plurality of described radiating fins is formed described discharge-channel.
10. a heat radiation module is applied to it is characterized in that in the electronic equipment, comprising:
Heat abstractor;
Fan;
Automatic dust removing apparatus is arranged between described heat abstractor and the described fan, is connected with described heat abstractor, and the dedusting signal that produces when being used for according to the current system of described electronic equipment thermal resistance greater than a critical thermal resistance carries out dust removal operation to described heat abstractor;
Described automatic dust removing apparatus carries out the dust that produces after the dust removal operation to described heat abstractor, under the effect of described fan wind-force, discharges described electronic equipment.
11. heat radiation module according to claim 10 is characterized in that, described automatic dust removing apparatus comprises: drive unit, transmission shaft, dust removal brush, primary importance induction installation and second place induction installation; Wherein, described drive unit is connected with described transmission shaft, and described dust removal brush is connected with described transmission shaft, and described primary importance induction installation is arranged at first end of described heat abstractor, and described second place induction installation is arranged at second end of described heat abstractor;
Described drive unit drives the rotation of described transmission shaft, drives described dust removal brush during described transmission shaft rotation from first end brush of dust device, second end to described dust device, perhaps from described second end brush to described first end;
When described primary importance induction installation is sensed described dust removal brush at the described first end position place, produce first induced signal, described drive unit is according to described first induced signal, changes the sense of rotation of described transmission shaft into second direction by first direction;
When described second place induction installation is sensed described dust removal brush at the described second end position place, produce second induced signal, described drive unit is according to described second induced signal, changes the sense of rotation of described transmission shaft into first direction by second direction.
12. the method for an automatic dedusting is applied to it is characterized in that in the electronic equipment, comprising:
The dedusting signal that the current system thermal resistance that receives described electronic equipment produces during greater than a critical thermal resistance;
According to described dedusting signal, the heat abstractor of described electronic equipment is carried out dust removal operation.
13. method according to claim 12 is characterized in that, the step that current system thermal resistance produces the dedusting signal during greater than a critical thermal resistance comprises:
Obtain the DIE Temperature of heat generating components of temperature around the electric fan of described electronic equipment and described electronic equipment and the power of this heat generating components;
Obtain the current thermal resistance R of system by formula R=(Tj-Tsys)/Power, and during greater than critical thermal resistance R0, produce the dedusting signal at the current thermal resistance R of system; Wherein Tj is the parameter of the DIE Temperature of representative heat generating components, and Tsys is the parameter of the temperature around the representative flabellum, and Power is the parameter of the power of the described heat generating components of representative, and R0 is the critical heat resistance.
14. according to claim 12 or 13 described methods, it is characterized in that,, the heat abstractor of described electronic equipment carried out dust removal operation specifically comprise according to described dedusting signal:
The drive unit of described automatic dust removing apparatus is according to described dedusting signal, drive the transmission shaft rotation of described automatic dust removing apparatus, when described transmission shaft rotates, the dust removal brush that drives described automatic dust removing apparatus is from first end brush of described heat abstractor, second end to described heat abstractor, perhaps brush to described first end from described second end, and with the dust that produces, the discharge-channel by described heat abstractor emits.
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| CN201010134369.3A CN102200816B (en) | 2010-03-25 | 2010-03-25 | Computer, heat-radiating module and automatic dust-removing method |
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| CN201010134369.3A CN102200816B (en) | 2010-03-25 | 2010-03-25 | Computer, heat-radiating module and automatic dust-removing method |
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| CN116066392A (en) * | 2023-02-20 | 2023-05-05 | 峰米(重庆)创新科技有限公司 | Method, device, equipment and storage medium for monitoring cooling fan |
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