CN104679191B - Liquid-cooling heat radiator and liquid-cooling heat radiation temperature control method - Google Patents
Liquid-cooling heat radiator and liquid-cooling heat radiation temperature control method Download PDFInfo
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- CN104679191B CN104679191B CN201310635078.6A CN201310635078A CN104679191B CN 104679191 B CN104679191 B CN 104679191B CN 201310635078 A CN201310635078 A CN 201310635078A CN 104679191 B CN104679191 B CN 104679191B
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Abstract
A kind of liquid-cooling heat radiator, for performing a liquid-cooling heat radiation temperature control method, to pump a coolant to be cooled down to a thermal source.The liquid-cooling heat radiation temperature control method includes contacting thermal source with a liquid cold head, hot to absorb caused by thermal source, and for coolant by carrying out heat exchange；Liquid cold head is connected to a radiating row, to form the cooling but dynamic circulation line of liquid recycle stream；Detect thermal source temperature, radiating row enter liquid temperature degree and radiating row go out liquid temperature degree；Differentiate whether the temperature of thermal source is more than a high temperature warning value, and calculate liquid temperature degree and enter the temperature difference between liquid temperature degree.When the temperature of thermal source is not more than high temperature warning value, methods described adjusts the flow forced cooling effectiveness or pump coolant to radiating row according to temperature difference；Use the control for meeting temperature control demand and noise.
Description
Technical field
The present invention is relevant with liquid-cooling heat radiation technology, especially with regard to the liquid-cooling heat radiator and liquid for applying to computer installation
Cold cooling control method.
Background technology
For the water-cooling heat radiating device of main frame, generally include radiating row and connect a pumping and a water-cooling head, and
The strong cooling of row is discharged into for radiating with fan.Under foregoing framework, the main noise of water-cooling heat radiating device come self- pomped operating,
The flowing of coolant, the rotation of fan.
Water-cooling heat radiating device would generally be set as that both of which operates：Low-power mode and high-power mode.Foregoing two kinds
Pattern is detected only for the temperature of thermal source (such as CPU, drawing chip), and when temperature exceedes warning value, fan is with pumping
Just full-speed operation simultaneously；After temperature is less than warning value, fan reduces running power with pumping.
However, in common water-cooling heat radiating device, user can not simultaneously be adjusted for fan with the running power of pumping,
Can only be in two kinds of low-power modes and high-power mode.When low-power mode, although fan reduces running power with pumping,
It is that indivedual users are inconsistent with the noise level impression of pumping for fan, and computer housing is also possible to because of resonance in itself
And amplify the noise of one of fan or pumping.
If but directly allow user to be directly involved the rotating speed switching of fan or pumping, the radiating dissipation thermal efficiency may occur
Unevident or coolant rate is insufficient, and operating state is soon switched to high-power mode.
The content of the invention
In the water-cooling heat radiating system of known technology, user's any switching laws fan and the running power of pumping are impermissible for, is caused
User can not adjust level of noise and frequency noise really.
In order to solve the above problems, an at least embodiment of the invention proposes a kind of liquid-cooling heat radiator, cold for pumping one
But liquid to a thermal source to cool down.Liquid-cooling heat radiator includes a liquid cold head, a radiating row, at least a pumping, a fan, one
Liquid inlet temperature sensing device, a liquid outlet temperature sensing device, a thermal source temperature sensing device and a control unit.
Liquid cold head is warm to absorb caused by thermal source to contact thermal source, and for coolant by carrying out heat exchange.Radiating
There is row a radiating to arrange liquid inlet and a radiating discharge liquor mouth；Radiating row's liquid inlet and radiating discharge liquor mouth are connected to liquid cold head,
To form the cooling but dynamic circulation line of liquid recycle stream, coolant is arranged by radiating and carry out heat exchange.Pumping, which is arranged at, to follow
On endless tube road, circulated with pumping coolant in circulation line.Fan is fixed on the radiating row, to arrange radiating
Carry out forced air cooling.Liquid inlet temperature sensing device is arranged at radiating row's liquid inlet, enters liquid temperature degree to detect radiating row's liquid inlet.
Liquid outlet temperature sensing device is arranged at radiating discharge liquor mouth, goes out liquid temperature degree with detecting radiating discharge liquor mouth, and go out liquid temperature degree with entering
A temperature difference is formed between liquid temperature degree.Thermal source temperature sensing device is arranged at thermal source, to detect the temperature of thermal source.Control unit to
Control the rotating speed of pumping and fan；A high temperature warning value, a temperature difference higher limit and a temperature difference lower limit are stored in control unit, and
And supply into an at least speed setting value.
When the temperature of thermal source is not more than high temperature warning value, and temperature difference is between temperature difference higher limit and temperature difference lower limit
When, control unit sends control signal according to speed setting value, to adjust the rotating speed of fan or pumping.When the temperature of thermal source is little
In high temperature warning value, and when temperature difference is more than temperature difference higher limit, control unit forces the rotating speed of lifting fan.When the temperature of thermal source
No more than high temperature warning value, and when temperature difference is less than temperature difference lower limit, control unit forces the rotating speed of lifting pumping.
An at least embodiment of the invention proposes a kind of liquid-cooling heat radiation temperature control method, to pump coolant to be carried out to thermal source
Cooling, method comprise the following steps：
Thermal source is contacted with a liquid cold head hot to absorb caused by thermal source, and for coolant by carrying out heat exchange；
Liquid cold head is connected to a radiating row, to form the cooling but dynamic circulation line of liquid recycle stream；Wherein radiating row tool
There are radiating row's liquid inlet and a radiating discharge liquor mouth, and radiating row's liquid inlet and radiating discharge liquor mouth are connected to liquid cold head；
Detect the temperature of thermal source, radiating row's liquid inlet enter liquid temperature degree and the discharge liquor mouth that radiates goes out liquid temperature degree；
Differentiate whether the temperature of thermal source is more than a high temperature warning value, and go out liquid temperature degree described in calculating and enter between liquid temperature degree
Temperature difference；
When the temperature of thermal source is not more than high temperature warning value, and temperature difference between the temperature difference higher limit and temperature difference lower limit it
Between when, according to a speed setting value adjustment to radiating row force cooling effectiveness or lifting pump coolant flow；
When the temperature of thermal source is not more than the high temperature warning value, and temperature difference is more than a temperature difference higher limit, lifting is forced
Radiate the pressure cooling effectiveness arranged；And
When the temperature of thermal source is not more than the high temperature warning value, and temperature difference is less than a temperature difference lower limit, lifting is forced
Pump the flow of coolant.
By said system and method, user can when heat source temperature allows, adjust rotation speed of the fan or pump power its
One of, change level of noise and frequency noise.And system can carry out necessary intervention, and avoid radiate the dissipation thermal efficiency it is unevident or
The problem of being coolant rate deficiency, occurs.
Brief description of the drawings
Fig. 1 is the schematic diagram of the embodiment of the present invention.
Fig. 2 is the circuit block diagram of the embodiment of the present invention.
Fig. 3 and Fig. 4 is the enlarged drawing of members in Fig. 1.
Fig. 5 is the method flow diagram of the embodiment of the present invention.
Embodiment
Refer to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, be a kind of liquid-cooling heat radiator 100 disclosed by the embodiment of the present invention,
For pumping a coolant to be cooled down to a thermal source 900.Foregoing thermal source 900 includes but is not limited to high power operating
IC chip (such as central processing unit or drawing chip).Liquid-cooling heat radiator 100 radiates including a liquid cold head 110, one
Arrange 120, one pumping 130, at least a fan 140, a liquid inlet temperature sensing device 150, a liquid outlet temperature sensing device 160, a thermal source
The control unit 180 of temperature sensing device 170 and one.
As shown in figure 1, liquid cold head 110 is typically a metal derby or other possess block made of the coefficient of heat conduction, with fast
Speed conduction heat.Liquid cold head 110 is warm caused by thermal source 900 to absorb to contact thermal source 900.Liquid cold head 110 has at least one
Heat exchange zone, to for coolant by carrying out heat exchange.The heat exchange zone can be the insertion liquid cold head 110
The surface of passage or liquid cold head 110 covers the chamber formed by outer cover or pumping 130.
As shown in figure 1, radiating row 120 have be set up in parallel fin (not shown), through fin pipeline (not shown),
One radiating row's liquid inlet and a radiating discharge liquor mouth.Radiating row 120 for coolant to enter radiating row 120, after pipeline
Radiating row 120 is left by radiating discharge liquor mouth.Coolant can carry out heat exchange in pipeline, and heat is sent into fin through pipeline
Piece, to carry out air cooling radiating.Radiating row's liquid inlet and radiating discharge liquor mouth are connected to the heat exchange zone of liquid cold head 110, and are formed
The cooling circulation line L that but liquid recycle stream moves.
As shown in Figures 1 and 2, pumping 130 is arranged on circulation line L, is circulated with pumping coolant in circulation line L
Flowing.Fan 140 is fixed on radiating row 120, to be blown or air-breathing to radiating row 120, to be carried out to radiating row 120
Forced air cooling.Fan 140 shown in figure is one, but fan 140 can also be two or more than two in practice.
As shown in Figures 1 and 2, liquid inlet temperature sensing device 150 is arranged at radiating row's liquid inlet, and liquid is discharged into detect radiating
Mouth enters liquid temperature degree T1；Liquid outlet temperature sensing device 160 is arranged at radiating discharge liquor mouth, goes out liquid temperature with detecting radiating discharge liquor mouth
T2 is spent, and goes out liquid temperature degree T2 and enters and form a temperature difference dT between liquid temperature degree T1.Thermal source temperature sensing device 170 is arranged at thermal source 900,
To detect the temperature Ts of the thermal source of thermal source 900.
As shown in Figure 3 and Figure 4, the set location of liquid inlet temperature sensing device 150, it is preferably provided in middle of the stream, with true
Captured temperature is protected close to the mean temperature of position coolant.Liquid inlet temperature sensing device 150 is set to be located at middle of the stream
Mode, it is to connect circulation line L and close to the radiating row liquid inlet through bypass line 192, bypass pipe is sealed with gag 194
192.One cylinder 195 is fixed on gag 194, and the top of gag 194 extends to circulation line L center, and liquid inlet temperature-sensitive
Device 150 is then fixed on the top of cylinder 195.Similarly, another bypass pipe 196 is connected to circulation line L and arranged close to radiating
Liquid inlet, a gag 197 seal bypass pipe 196.One cylinder 198 is fixed on gag 197, and the top section of gag 197 is extended to and followed
The center on endless tube road, and liquid outlet temperature sensing device 160 is fixed on the top of cylinder 198.
Refer to shown in Fig. 1, control unit 180 is to control the rotating speed of the rotating speed of pumping 130 and fan 140, so as to control
The flow of system pumping coolant and the cooling effectiveness of radiating row 120.A high temperature warning value, a temperature are stored in control unit 180
Poor higher limit and a temperature difference lower limit, and supply into an at least speed setting value.Control unit 180 be connected to pumping 130,
Fan 140, liquid inlet temperature sensing device 150, liquid outlet temperature sensing device 160, thermal source temperature sensing device 170, are discharged into obtain radiating
Liquid mouth enter liquid temperature degree T1, radiate discharge liquor mouth the temperature Ts for going out liquid temperature degree T2 and thermal source, with control the rotating speed of pumping 130 and
The rotating speed of fan 140.
As shown in Figures 1 and 2, liquid-cooling heat radiator 100 further includes an input interface 190 and a display interface 200.Input
Interface 190 is operated with for user, with input speed setting value.Display interface 200 is showing the temperature of water-cooling head and cooling
The flow of liquid.
Control unit 180 includes a forced working pattern and user sets pattern.In forced working pattern, control unit
180 footpath rows send control signal, and lifting fan 140 or the rotating speed of pumping 130 are forced according to a default value, and ignore user's
The speed setting value of offer.In user's setting pattern, control unit 180 sends control according to the speed setting value that user sets
Signal, to allow user's control fan 140 and the rotating speed of pumping 130, to adjust level of noise.
Refer to shown in Fig. 1, Fig. 2 and Fig. 5, be the liquid-cooling heat radiation temperature control method disclosed by the embodiment of the present invention.
In step Step 110 and step Step 120, liquid inlet temperature sensing device 150, liquid outlet temperature sensing device 160 and
Thermal source temperature sensing device 170 is detected into liquid temperature degree T1, goes out the temperature Ts of liquid temperature degree T2, thermal source respectively, and aforementioned value is sent to
Control unit 180.
Then, control unit 180 compares the temperature Ts and high temperature warning value Tth of thermal source, and differentiating the temperature Ts of thermal source is
It is no to be more than high temperature warning value, as shown in step Step 130.For example, when thermal source 900 is a drawing chip, the safety of drawing chip
Operating temperature is that then high temperature warning value Tth can be set as 80 degree Celsius less than 85 degree Celsius；If thermal source 900 is other chips
When, then set high temperature warning value for the safe working temperature of the chip.
If the temperature Ts of thermal source is more than high temperature warning value Tth, then control unit, which performs, forces control model, forces simultaneously
The rotating speed of fan and the rotating speed of pumping are lifted, forces cooling effectiveness and lifting to pump the stream of coolant with heat radiation row 120
Amount, so as to quickly reduce the temperature Ts of thermal source to below high temperature warning value Tth, as shown in step Step 140.
If the temperature Ts of thermal source is not more than high temperature warning value Tth, then control unit 180 further calculates liquid temperature degree T2
Temperature difference dT with entering liquid temperature degree T1, as shown in step Step 150.
An a temperature difference higher limit B and temperature difference lower limit A (B is set in control unit 180>A).
When the temperature difference dT is between temperature upper limit B and temperature upper limit value A, liquid-cooling heat radiator 100 is represented
Operating state it is normal, user can freely control the rotating speed of fan 140 and the rotating speed of pumping 130, to adjust noise.Now,
Control unit 180 switches to user to set pattern, and control unit 180 and the speed setting value according to user's setting send control and interrogated
Number, adjust and force cooling effectiveness or lifting to pump the flow of the coolant radiating row 120.Such as user is allowed to adjust wind
Fan 140 and the rotating speed of pumping 130, to adjust level of noise, as shown in step Step 160 and step Step 162.
When the temperature difference dT is more than temperature difference higher limit B, the heat dissipation of representative radiating row is bad, and now, control is single
Member 180 switches to forced working pattern, forces the cooling effectiveness of heat radiation row 120, that is, forces turning for lifting fan 140
Speed, as shown in step Step 170 and step Step 172.In addition, the more controlling fan of control unit 180 changes wind direction repeatedly,
Dedusting function to radiating row 120 is started with the wind direction back and forth changed, the laying dust on radiating row is reduced, such as the institutes of step Step 174
Show.
When the temperature difference dT is less than temperature difference lower limit A, the water-carrying capacity deficiency by water-cooling head, now, control are represented
Unit 180 equally switches to forced working pattern, forces the flow of lifting pumping coolant, that is, lifts the rotating speed of pumping 130,
As shown in step Step 180 and step Step 182.
By said system and method, user can when heat source temperature allows, adjust rotation speed of the fan or pump power its
One of, change level of noise and frequency noise.And system can carry out necessary intervention, and avoid radiate the dissipation thermal efficiency it is unevident or
The problem of being coolant rate deficiency, occurs.
Embodiment described above is intended to disclose the technical characteristic of the present invention, and so it is not limited to the present invention,
It is any to be familiar with alike those skilled in the art, without departing from the spirit and scope of the present invention, when can make a little change and retouching, therefore this
The scope of patent protection of invention must be defined depending on this specification appended claims institute defender.
Claims (14)
1. a kind of liquid-cooling heat radiator, for pumping a coolant to be cooled down to a thermal source, it is characterised in that the liquid is cold
Heat abstractor includes：
One liquid cold head, it is to contact the thermal source hot to absorb caused by the thermal source, and for the coolant by carrying out
Heat exchange；
One radiating row, there is a radiating to arrange liquid inlet and a radiating discharge liquor mouth；Radiating row's liquid inlet and the radiating row
Liquid outlet is connected to liquid cold head, to form the circulation line circulated for the coolant, passes through the coolant described
Radiating is arranged and carries out heat exchange；
One pumping, it is arranged on the circulation line, is circulated with pumping the coolant in the circulation line；
An at least fan, it is fixed on the radiating row, to discharge into row forced air cooling to the radiating；
One liquid inlet temperature sensing device, the radiating row liquid inlet is arranged at, enters liquid temperature degree to detect radiating row's liquid inlet；
One liquid outlet temperature sensing device, the radiating discharge liquor mouth is arranged at, goes out liquid temperature degree with the detecting radiating discharge liquor mouth,
And it is described go out liquid temperature degree and it is described enter liquid temperature degree between form a temperature difference；
One thermal source temperature sensing device, is arranged at the thermal source, to detect the temperature of the thermal source；
One control unit, to control the rotating speed of the rotating speed of the pumping and the fan；Storage one is high in described control unit
Warm warning value, a temperature difference higher limit and a temperature difference lower limit, and supply into an at least speed setting value；
Wherein, when the temperature of the thermal source is not more than the high temperature warning value, and the temperature difference is between the temperature difference higher limit
And when between the temperature difference lower limit, described control unit simultaneously sends control signal according to the speed setting value, with described in adjustment
Fan or the rotating speed of the pumping；
When the temperature of the thermal source is not more than the high temperature warning value, and the temperature difference is more than the temperature difference higher limit, generation
Radiated described in table row heat dissipation it is relatively bad, described control unit forces to lift the rotating speed of the fan；
When the temperature of the thermal source is not more than the high temperature warning value, and the temperature difference is less than the temperature difference lower limit, generation
Table passes through the water-carrying capacity relative deficiency of the liquid cold head, the rotating speed of the described control unit pressure lifting pumping.
2. liquid-cooling heat radiator as claimed in claim 1, it is characterised in that described after the rotating speed of the fan is lifted
Control unit controls the fan to change wind direction repeatedly.
3. liquid-cooling heat radiator as claimed in claim 1, it is characterised in that the liquid cold head has an at least heat exchange zone,
With so that the coolant is by the way that and radiating row's liquid inlet and the radiating discharge liquor mouth are connected to the heat exchange of liquid cold head
Area.
4. liquid-cooling heat radiator as claimed in claim 3, it is characterised in that the heat exchange zone is an insertion liquid cold head
Passage.
5. liquid-cooling heat radiator as claimed in claim 3, it is characterised in that the heat exchange zone is the surface of the liquid cold head
The chamber to be formed is covered through an outer cover.
6. liquid-cooling heat radiator as claimed in claim 1, it is characterised in that also include：
Bypass line, it is connected to the circulation line and arranges liquid inlet close to the radiating；
One gag, seal the bypass pipe；And
One cylinder, is fixed on the gag, and a top of the cylinder extends to the center of the circulation line, and it is described enter
Liquid mouth temperature sensing device is fixed on the top of the cylinder.
7. liquid-cooling heat radiator as claimed in claim 1, it is characterised in that also include：
Bypass line, be connected to the circulation line and close to it is described radiating discharge liquor mouth；
One gag, seal the bypass pipe；And
One cylinder, is fixed on the gag, and a top of the cylinder extends to the center of the circulation line, and it is described go out
Liquid mouth temperature sensing device is fixed on the top of the cylinder.
8. liquid-cooling heat radiator as claimed in claim 1, it is characterised in that when the temperature of the thermal source is warned more than the high temperature
Indicating value, described control unit force to lift the rotating speed of the fan and the rotating speed of the pumping simultaneously.
9. liquid-cooling heat radiator as claimed in claim 1, it is characterised in that also including an input interface, the input interface
To input the speed setting value.
10. liquid-cooling heat radiator as claimed in claim 9 a, it is characterised in that display interface is also wrapped, to show the liquid
The temperature and coolant rate of cold head.
A kind of 11. liquid-cooling heat radiation temperature control method, to pump a coolant to be cooled down to a thermal source, it is characterised in that institute
The method of stating includes：
To contact the thermal source with a liquid cold head hot caused by the thermal source to absorb, and for the coolant by carrying out hot friendship
Change；
Liquid cold head is connected to a radiating row, to form the circulation line circulated for the coolant；The radiating row tool
There are radiating row's liquid inlet and a radiating discharge liquor mouth, and radiating row's liquid inlet and the radiating discharge liquor mouth are connected to liquid
Cold head；
Detect the temperature of the thermal source, the radiating row liquid inlet enter liquid temperature degree and the radiating discharge liquor mouth goes out liquid temperature
Degree；
Differentiate whether the temperature of the thermal source is more than a high temperature warning value, and go out described in calculating liquid temperature degree with it is described enter liquid temperature degree it
Between temperature difference；
When the temperature of the thermal source is not more than the high temperature warning value, and the temperature difference is between a temperature difference higher limit and a temperature difference
When between lower limit, the cooling is pumped to the pressure cooling effectiveness of the radiating row or lifting according to speed setting value adjustment
The flow of liquid；
When the temperature of the thermal source is not more than the high temperature warning value, and the temperature difference is more than a temperature difference higher limit, represent
The heat dissipation of the radiating row is relatively bad, forces the pressure cooling effectiveness of the lifting radiating row；And
When the temperature of the thermal source is not more than the high temperature warning value, when the temperature difference is less than a temperature difference lower limit, representative is logical
The water-carrying capacity relative deficiency of the liquid cold head is crossed, forces lifting to pump the flow of the coolant.
12. liquid-cooling heat radiation temperature control method as claimed in claim 11, it is characterised in that described in being more than when the temperature of the thermal source
High temperature warning value, lift the radiating row forces cooling effectiveness or lifting to pump the flow of the coolant.
13. liquid-cooling heat radiation temperature control method as claimed in claim 11, it is characterised in that the pressure cooling of the lifting radiating row
The step of efficiency, the fan was to the radiating row air blowing or air-breathing to lift the rotating speed of a fan.
14. liquid-cooling heat radiation temperature control method as claimed in claim 13, it is characterised in that after the rotating speed for lifting the fan,
A step is further included, controls the fan to change wind direction repeatedly.
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| CN201310635078.6A CN104679191B (en) | 2013-11-29 | 2013-11-29 | Liquid-cooling heat radiator and liquid-cooling heat radiation temperature control method |
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| CN107027267B (en) * | 2016-02-01 | 2020-03-13 | 中兴通讯股份有限公司 | Control method, device and system of liquid cooling equipment |
| CN107436657B (en) * | 2016-05-26 | 2019-11-01 | 刘小明 | PC terminal and its radiator |
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| CN108615713A (en) * | 2018-05-17 | 2018-10-02 | 河海大学常州校区 | Tandem type thermo-electric generation drives the coupled thermomechanics radiator of cooling fluid |
| CN108667348A (en) * | 2018-05-17 | 2018-10-16 | 河海大学常州校区 | Stack thermo-electric generation drives the coupled thermomechanics radiator of cooling fluid |
| CN110261885B (en) * | 2019-07-02 | 2021-06-15 | 江苏赛诺格兰医疗科技有限公司 | Liquid cooling detector for PET system |
| CN112230743A (en) * | 2020-10-23 | 2021-01-15 | 苏州浪潮智能科技有限公司 | Server heat dissipation device and method |
| CN112764496A (en) * | 2021-01-28 | 2021-05-07 | 兰洋(宁波)科技有限公司 | Liquid cooling implementation method of liquid cooling system and liquid cooling system thereof |
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