DE102005001603B4 - Method for driving at least one cooler with device - Google Patents

Abstract

A method of driving at least one radiator in an electronic device (10) having a heat source and the at least one radiator (60), wherein
the electronic device comprises a driver circuit (50) for controlling the cooler and
the driver circuit is connected to a detection circuit (40) which detects the temperature of the heat source, and wherein
the detection circuit is adapted to additionally obtain a signal from a parameter source which influences temperature change of the heat source, in which method
the detection circuit monitors the signal from the parameter source and the driver circuit drives the cooler in response to the signal from the parameter source to cause pre-cooling of the heat source.

Description

AREA OF INVENTION

The The present invention relates to a method for driving at least a cooler with device for precooling cooler or heat sink and relates in particular driver devices for pre-cooling radiator or heat sink, the speed of a cooler Timely and timely control and the temperature of an electronic equipment effectively lower.

BACKGROUND THE INVENTION

Like in the 1 As shown, most use a temperature-sensing radiator 60 , like in the DE 20 2004 010 582 U1 shown, and products a solution in which a temperature detection circuit 40a with a thermistor or any other temperature sensitive device as in DE 40 38 198 A1 shown used to change the temperature of a heat source of the electronic device 10 during its operation to detect continuously. If the temperature is one of the temperature detection circuit 40a monitored heat source exceeds a predetermined level, a signal to a driver circuit 50 transmitted to a radiator or heat sink 60 so that its rotational speed is increased to increase its cooling efficiency. However, such an arrangement can meet the requirements for electronic devices 10 no longer suffice. If the electronic device 10 For example, a power supply or a power supply is and the voltage of an external power supply 30 the electronic device 10 is fed and converted into a voltage for a load 20 is spent and if the potential of such a load 20 is increased (resulting in an increase in the load 20 leads), becomes the electronic device 10 its operation automatically start with that voltage or power that leads to a temperature increase of the heat source. It is then necessary to wait a while before the radiator 60 it starts to increase its speed to lower the temperature. Because the high-performance output conditions of the electronic device 10 remain unchanged, the cooler can 60 However, suppressing only the temperature of the heat source which is operated under a high-power output condition can not really solve the problem of effectively lowering the temperature. In addition, the temperature change of the electronic device has 10 a limit point and based the predetermined temperature measure of a common temperature detection circuit 40a on this boundary point as measure or value. In other words, a conventional, temperature-sensing radiator 60 can only lead to a virtual or fictitious temperature drop, so that the electronic device 10 continue to operate under high temperature environmental conditions. Even if the designed cooler 60 is able to effectively reduce the temperature, the components in the electronic device 10 lead to very large heat accumulations before the temperature drops. That's why the electronic device has 10 however, the insufficiency of low performance and short life, due to the effect of thermal expansion and cold contraction, or to the increase in its thermal impedance and thermal resistance, respectively.

SUMMARY THE INVENTION

Therefore is it a primary one Object of the present invention, an effective cooling in an electronic device to effect.

Around to solve the above problem becomes the solution according to the invention at an electronic device used, which is a heat source and a pair of coolers or heat sinks for Lower the temperature of the heat source wherein the electronic device is a driver circuit for Controlling the radiator comprising, wherein the driver circuit with a detection circuit is connected and the detection circuit as part of a detection process obtained signal from a parameter source scores, that the heat source will affect to cause a temperature increase, so that the detection circuit is an accelerating or decelerating Signal corresponding to that obtained in the context of the detection process Signal to the driver circuit outputs to control the cooler so that this precooling or the temperature of the radiator lowered in advance.

FIGURE OVERVIEW

1 Fig. 10 is a schematic block diagram of the temperature detection driver circuit according to the prior art.

2 Fig. 10 is a schematic block diagram of a preferred embodiment according to the present invention.

3 FIG. 10 is a schematic flowchart of a first control method according to the present invention. FIG.

4 is a schematic flowchart a second control method according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The The foregoing and other objects, features and advantages of the present invention Invention will become apparent from the following detailed description, which Reference is made to the attached drawings, be more apparent.

That in the 2 shown preferred embodiment may be in an electronic device 10 Application find that a heat source and a pair of coolers or heatsinks 60 for lowering the temperature of the heat source. It is for the electronic device 10 a driver circuit 50 for controlling the performance for lowering the temperature of the radiator 60 provided, wherein the driver circuit 50 with a detection circuit 40 is connected and the detection circuit 40 deriving a signal obtained as part of a detection process from a parameter source which influences the heat source to produce a temperature increase, and wherein the detection circuit 40 an accelerating or decelerating signal to the driver circuit based on the signal obtained during the detection process 50 Spent to the radiator 60 to pre-cool or lower the temperature of the heat source in advance.

Like in the 3 shown, the control method according to the invention keeps a normal speed of the radiator 60 upholds or sets this in a suspending status. With the help of the driver circuit 50 or the detection circuit 40 one obtains a parameter source which influences the temperature change of the heat source. If the change in value of a signal obtained by means of a detection process, which is derived from the parameter source, increases or increases, the speed of the cooler 60 accelerates or starts the process D to suppress the temperature increase of the heat source; if the value of the temperature change drops, the radiator stops 60 its current state upright and the detection process is continued.

• A. Der Kühler 60 hält eine normale Drehzahl aufrecht oder setzt seinen Betrieb aus;
• B. es wird überprüft bzw. überwacht, ob die Temperatur der Wärmequelle die Temperatur-Maßgröße überschreitet oder nicht, und zwar dadurch, dass ein vorbestimmter Wert der Temperatur-Maßgröße in der Treiberschaltung 50 zum Detektieren bzw. Überwachen der Wärmequelle eingestellt wird. Falls die Temperatur der Wärmequelle niedriger ist als der Wert der Temperatur-Maßgröße, wird der Kühler 60 seine normale Drehzahl aufrecht erhalten oder den Betrieb abbrechen und zu dem nächsten Schritt übergehen. Falls die Temperatur der Wärmequelle höher ist als der Wert der Temperatur-Maßgröße, wird der Kühler 60 seine Drehzahl beschleunigen, um die Temperatur abzusenken, oder den Betrieb zum Absenken der Temperatur D starten;
• C. ein externer Parameter-Änderungswert wird empfangen und bestimmt: die Detektionsschaltung 40 erzielt eine Parameterquelle, welche die Temperaturänderung der Wärmequelle beeinflusst; falls der Wert der Änderung eines mittels eines Detektionsvorgangs gewonnenen Signals, das von einer solchen Parameterquelle erhalten bzw. abgeleitet wird, sich erhöht, beschleunigt der Kühler 60 seine Drehzahl oder beginnt dieser den Vorgang D, um die Temperaturerhöhung zu unterdrücken; und, falls der Wert der Änderung abfällt, wird der Kühler 60 seine aktuellen Betriebszustände aufrecht erhalten und den Detektionsvorgang fortsetzen.

The approach according to the invention could also be used together with a known temperature detection control method, such as this in the 4 is shown used. Such a method will be described below:

• A. The radiator 60 maintains a normal speed or stops its operation;
• B. It is checked or monitored whether the temperature of the heat source exceeds the temperature measure size or not, in that a predetermined value of the temperature-measure in the driver circuit 50 is set to detect or monitor the heat source. If the temperature of the heat source is lower than the value of the temperature measure, the cooler will become 60 maintain its normal speed or abort operation and proceed to the next step. If the temperature of the heat source is higher than the value of the temperature measure, the radiator will become 60 accelerate its speed to lower the temperature or start the operation to lower the temperature D;
• C. an external parameter change value is received and determined: the detection circuit 40 obtains a parameter source which influences the temperature change of the heat source; if the value of the change of a signal obtained by a detection process derived from such a parameter source increases, the radiator accelerates 60 its speed or starts the process D to suppress the increase in temperature; and, if the value of the change drops, the radiator becomes 60 maintain its current operating conditions and continue the detection process.

• 1. Die Parameterquelle ist eine Spannungsversorgung 30 zum Bereitstellen einer elektrischen Spannung für den Betrieb eines elektronischen Geräts 10. Gemäß den von augenblicklichen Technologien eingesetzten Maßnahmen ist ein elektronisches Gerät 10 für gewöhnlich zusätzlich zur Verbindung mit einem Stromnetz auch mit einer Spannungsversorgung bzw. einem Netzteil 30, beispielsweise einer Notstromversorgung, verbunden. Falls für das elektronische Gerät 10 die Qualität der Eingangsspannung nicht auf einer Norm-Spannung (beispielsweise 110 Volt) aufrecht erhalten werden kann, muss das elektronische Gerät 10, das mit einer Eingangsspannung von schlechter Qualität betrieben wird, die niedriger ist als die Norm-Spannung (beispielsweise mit einer tatsächlichen Eingangsspannung von 90 Volt) und die mit derselben Spannungswandlungsnorm berechnet bzw. vorgegeben wird, sein Betriebs-Leistungsverhalten verbessern, um eine normalerweise ausgegebene Spannung aufrecht zu erhalten. Dann wird das elektronische Gerät 10 auf Grund eines Leistungs- bzw. Spannungsverlustes bzw. -abfalls eine Temperaturerhöhung an der Wärmequelle hervorrufen. Falls die Detektionsschaltung 40 eine Schwankung des Spannungs-Eingangssignals S2 detektiert hat, wird erfindungsgemäß ein Signal an die Treiberschaltung 50 übermittelt, um die Drehzahl des Kühlers 60 zu erhöhen bzw. zu beschleunigen und die Temperatur der Wärmequelle abzusenken, um mit dem erhöhten Leistungsverlust des elektronischen Geräts 10 fertig zu werden. Deshalb wird die Wärmequelle unterdrückt und wird deren Betrieb in einer Umgebung mit normaler Temperatur aufrechterhalten. Die Wärmequelle gemäß diesem Ausführungsbeispiel ist ein Spannungswandlungs-Bauelement, beispielsweise ein Transformator, eine Kapazität oder eine Induktivität, der bzw. die in das elektronische Gerät 10 eingebaut ist, und das im Rahmen eines Detektionsvorgang gewonnene Signal könnte ein AN/AUS-Signal oder ein Spannungswandlungssignal eines Netzteils bzw. einer Spannungsversorgung 30 zusätzlich zu dem Spannungs-Eingangssignal S2 sein. Falls das elektronische Gerät 10 eine Reserve-Spannungsversorgung bzw. -Notstromversorgung mit einem Stapel von Netzteilen bzw. Spannungsversorgungen, insbesondere wieder aufladbaren Batterien, ist, könnte das im Rahmen eines Detektionsvorgangs gewonnene Signal ein Betriebsleistungsverhältnis-Signal F1 (operation performance ratio signal; beispielsweise in dem Zustand des Abgleichs einer Last 20) der Wärmequelle sein. Beispielsweise könnte das Abgleichsverhältnis (balance ratio) der Last 20 für jede von fünf Sätzen von Spannungsversorgungen 20% betragen und müssten, falls ein Satz bzw. eine Spannungsversorgung ausfällt, die restlichen vier Sätze von Spannungsversorgungen ihr Gleichverhältnis der Last 20 von 20% auf 25% für jede der restlichen vier Spannungsversorgungen erhöhen und muss somit der Kühler 60 seine Drehzahl erhöhen bzw. beschleunigen, um sein Leistungsverhalten zu verbessern und die Temperatur abzusenken.
• 2. Falls die Parameterquelle die Last 20 ist, die von einem Ausgangssignal des elektronischen Geräts 10 getrieben wird, dann muss die von dem elektronischen Gerät 10 ausgegebene und gewandelte Leistung bzw. Spannung viele Lasten 20 versorgen und legt der Leistungsverbrauch der Lasten 20 fest, ob das elektronische Gerät 10 teilweise oder in vollem Umfang belastet ist, und gibt dieser auch eine Temperaturänderung bei unterschiedlichem Spannungs-Leistungsverhalten der Wärmequelle des elektronischen Geräts 10 vor. Externe Geräte sind neuerdings sehr beliebt und diese externen Geräte werden insbesondere das Spannungs-Leistungsverhalten des elektronischen Geräts 10 beeinflussen. Dann stellt das im Rahmen eines Detektionsvorgangs gewonnene Signal gemäß der vorliegenden Erfindung ein Strom- bzw. Leistungsverbrauchssignal S3 der Last 20 dar. Falls eine Änderung einer Größe oder eines Potenzialwertes der Lasten 20, die mit dem elektronischen Gerät 10 verbunden sind, vorliegt, wird das im Rahmen eines Detektionsvorgangs gewonnene Signal von einer Detektionseinheit gewonnen werden, so dass der Kühler 60 seine Drehzahl erhöhen und sein Leistungsverhalten zum Absenken der Temperatur in Entsprechung zu dem Spannungs-Leistungsverhalten von unterschiedlichen elektronischen Geräten 10 absenken kann.

The inventively designed radiator 60 For example, under normal operating conditions, a primary radiator or a reserve radiator may be unused. The electronic device 10 could be a computer system or a power supply or a power supply. The following embodiment starts from a power supply to describe the parameter source which influences the heat source and to describe the control method according to the present invention as follows.

• 1. The parameter source is a power supply 30 for providing an electrical voltage for the operation of an electronic device 10 , According to the measures implemented by current technologies is an electronic device 10 usually in addition to the connection to a power grid with a power supply or a power supply 30 , For example, an emergency power supply connected. If for the electronic device 10 The quality of the input voltage can not be maintained at a standard voltage (for example, 110 volts), the electronic device must 10 which is operated with a poor quality input voltage lower than the standard voltage (for example, with an actual input voltage of 90) Volts) calculated using the same voltage conversion standard will improve its performance to maintain a normally applied voltage. Then the electronic device 10 cause a temperature increase at the heat source due to a loss of power or voltage. If the detection circuit 40 has detected a fluctuation of the voltage input signal S2, according to the invention, a signal to the driver circuit 50 transmitted to the speed of the radiator 60 increase or decrease and lower the temperature of the heat source, in order to cope with the increased power loss of the electronic device 10 To finish. Therefore, the heat source is suppressed and their operation is maintained in a normal temperature environment. The heat source according to this embodiment is a voltage conversion device, such as a transformer, a capacitor, or an inductor incorporated in the electronic device 10 is built-in, and the signal obtained during a detection process could be an ON / OFF signal or a voltage conversion signal of a power supply or a power supply 30 in addition to the voltage input signal S2. If the electronic device 10 For example, in the case of a backup power supply having a stack of power supplies, particularly rechargeable batteries, the signal obtained during a detection operation could include an operation performance ratio signal F1 (for example, in the state of balancing a power output signal F1) load 20 ) of the heat source. For example, the balance ratio of the load 20 for each of five sets of power supplies, 20%, and if one set or power supply fails, the remaining four sets of power supplies would have their duty balance 20 increase from 20% to 25% for each of the remaining four power supplies and thus must be the cooler 60 increase or accelerate its speed to improve its performance and lower the temperature.
• 2. If the parameter source is the load 20 is that of an output of the electronic device 10 that is driven by the electronic device 10 output and converted power or voltage many loads 20 supply and lay the power consumption of the loads 20 determines if the electronic device 10 is partially or fully loaded, and this also gives a temperature change with different voltage performance of the heat source of the electronic device 10 in front. External devices are now very popular and these external devices are particularly the voltage performance of the electronic device 10 influence. Then, the signal obtained in the course of a detection operation according to the present invention provides a power consumption signal S3 of the load 20 If a change in size or potential value of the loads 20 that with the electronic device 10 is present, the signal obtained in the context of a detection process will be obtained by a detection unit, so that the radiator 60 increase its speed and its performance to lower the temperature in accordance with the voltage performance of different electronic devices 10 can lower.

The aforementioned two control methods are intended to serve as examples only to describe an embodiment according to the present invention. The detection circuit 40 and the driver circuit 50 according to the present invention can also be integrated into an integrated circuit and the pin allocation of the integrated circuit depends on the number of different parameter sources. The inventive approach can also be used in conjunction with an existing temperature detection control method, so that the electronic device 10 then, if it continues to operate abnormally and a temperature increase results after elimination of each adjustment parameter source, a temperature change signal S4 directly to the drive circuit 50 will output and the driver circuit 50 to do this, the radiator 60 to control the speed of the radiator 60 to increase or accelerate to achieve the goal of lowering the temperature in a similar manner.

In summary, the invention relates to a pre-cooler radiator driver apparatus which essentially comprises existing radiators ( 60 ), which simply changes the temperature of a heat source of an electronic device ( 10 ) is used as a parameter source to determine its speed. According to the present invention, a parameter source is used which will influence the heat source to increase the temperature as the parameter source for accelerating the speed of the radiator ( 60 ), if a temperature increase for the heat source of the electronic device ( 10 ) is expected. Thus, according to the invention, the heat source is normally maintained at a normal operating temperature to ensure operating performance.

Claims (11)

Method for driving at least one cooler in an electronic device ( 10 ), which has a heat source and the at least one cooler ( 60 ), wherein the electronic device comprises a driver circuit ( 50 ) for controlling the cooler and the driver circuit with a detection circuit ( 40 ), which detects the temperature of the heat source, and wherein the detection circuit is adapted to additionally obtain a signal from a parameter source which influences temperature change of the heat source, in which method the detection circuit monitors the signal of the parameter source and the drive circuit in dependence on the signal of the parameter source drives the cooler so that it causes a pre-cooling of the heat source. The method of claim 1, wherein the parameter source is a power supply for supplying electrical power to the operation of the electronic device ( 10 ). The method of claim 2, wherein the signal is the parameter source an ON / OFF signal, a voltage input signal or a voltage conversion signal of Current or voltage source is. Method according to one of the preceding claims, wherein the parameter source is a load ( 20 ), which is dependent on an output signal of the electronic device ( 10 ) is driven. Method according to claim 4, wherein the electronic device ( 10 ) is a power supply. The method of claim 4 or 5, wherein in the frame The signal obtained from the detection process, a load power consumption signal (S3) is. The method of claim 1 or 2, wherein the signal the parameter source, an operating power ratio signal (S1) of the heat source is. Method according to one of the preceding claims, wherein the electronic device ( 10 ), which has a heat source and the at least one cooler ( 60 ) for lowering the temperature of the electronic device ( 10 ), a power supply ( 30 ). Method according to one of claims 1 to 7, wherein the electronic device ( 10 ), which has a heat source and the at least one cooler ( 60 ) for lowering the temperature of the electronic device ( 10 ) is a computer system. Method according to one of the preceding claims, in the precooling the heat source by change the speed of the at least one cooler is effected. Device for carrying out the method according to one of the preceding claims, with at least one cooler ( 60 ), a driver circuit and a detection circuit ( 40 ).