CN103268141A - A hard disk cooling system - Google Patents

Abstract

The invention discloses a cooling system for hard disks. The cooling system for the hard disks comprises a hard disk backboard, a cooling fan, the hard disks, a temperature sensor and an alarming device, wherein the hard disk backboard is connected with the cooling fan, the hard disks, the temperature sensor and the alarming device respectively. An MCU, the temperature sensor and a fan interface are integrated on the hard disk backboard. Due to the fact that the MCU, the temperature sensor and the fan interface are integrated on the hard disk backboard, the MCU tests the temperature of the portion, close to the hard disks, of the hard disk backboard in real time and controls the rotating speed of the cooling fan according to the temperature. On one hand, the cooling system for the hard disks supplies power to the hard disks and supplies a data interface through the hard disk backboard, on the other hand, the MCU on the hard disk backboard is used for reading the temperature of the portion, close to the hard disks, of the hard disk backboard and controlling the rotating speed of the cooling fan according to the temperature values. Furthermore, the MCU can give an alarm when the MCU tests that the temperature of the hard disks is too high due to the fact that the cooling fan breaks down, and thus the stability and reliability of the cooling system are improved.

Description

A hard disk cooling system

technical field

The invention belongs to the technical field of storage, and relates to a hard disk cooling system.

Background technique

In a large-scale storage system, a large-capacity storage system usually needs to be composed of multiple hard disks. Among them, the power consumption of the hard disk varies depending on the type. For example, the power consumption of a 3.5’ hard disk is generally around 15W. When multiple hard disks are connected to the hard disk backplane, the power consumption is high, and it is necessary to dissipate heat from the hard disks.

At present, the commonly used hard disk cooling solution is to set a fan interface through the backplane, and let the fan run at full speed to dissipate heat from the hard disk. However, the power consumption of the hard disk is different between high-speed operation and normal reading and writing. The high-speed operation consumes a lot of power and requires high heat dissipation requirements; while in the normal reading and writing state, the power consumption is low and the heat dissipation is low. Average demand. It can be seen that the heat dissipation requirements of the hard disk are different under different working conditions. Therefore, if the fan is kept running at full speed, this will result in a great waste of power consumption by the fan.

Therefore, in view of the defects in the above-mentioned prior art, it is necessary to carry out research and development to provide a solution to solve the problem of waste of power consumption caused by the cooling fan of the hard disk system running at full speed in the prior art, and to realize the high efficiency of the hard disk. Heat dissipation, improve the stability of the hard disk system.

Contents of the invention

In order to solve the above problems, the purpose of the present invention is to provide a hard disk cooling system to solve the problem of waste of power consumption caused by the cooling fan of the hard disk system running at full speed, realize efficient heat dissipation of the hard disk, and improve the stability of the hard disk system.

To achieve the above object, the technical solution of the present invention is:

A hard disk heat dissipation system, comprising a hard disk backplane, cooling fans respectively connected to the hard disk backplane, a hard disk, a temperature sensor, and an alarm device; wherein, the hard disk backplane is integrated with a microcontroller and a temperature sensor With the integrated MCU, temperature sensor and fan interface on the backplane, the MCU detects the temperature of the part near the hard disk on the backplane in real time, and controls the fan speed according to the temperature.

Further, the hard disk backplane supplies power to the hard disk and provides a data transmission interface.

Further, the microcontroller on the hard disk backboard is used to read the temperature near the hard disk, and adjust the fan speed according to the temperature value, so as to keep the hard disk at an appropriate working temperature.

Further, the MCU is a single-chip microcomputer or an ARM, or a CPLD.

Further, the temperature sensor is a thermistor or a thermocouple, or a digital temperature sensor.

Further, the heat dissipation fan is used to dissipate heat from the hard disk, and the fan receives control data sent from the MCU to change the fan speed in real time; the hard disk is responsible for data storage of the entire storage system.

Compared with the prior art, the hard disk cooling system of the present invention provides power supply and data interface to the hard disk through the hard disk backplane on the one hand, and reads the temperature near the hard disk through the microcontroller on the backplane on the other hand. The temperature value is used to regulate the speed of the fan. When the fan fails, the MCU detects that the hard disk temperature is too high and can also send an alarm, thereby improving the stability and reliability of the system.

Description of drawings

Fig. 1 is a functional block diagram of the hard disk cooling system of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in FIG. 1 , a hard disk heat dissipation system of the present invention includes a hard disk backplane, cooling fans respectively connected to the hard disk backplane, a hard disk, a temperature sensor and an alarm device. Among them, the hard disk backboard is integrated with a microcontroller (Micro Control Unit, MCU), temperature sensor and fan interface. The hard disk backplane is the core of the entire hard disk cooling system. On the one hand, it is responsible for supplying power to the hard disk and providing data transmission interfaces. The temperature of the hard disk part controls the fan speed according to the temperature. Specifically, the temperature near the hard disk is read by the microcontroller on the backboard, and the fan speed is adjusted according to the temperature value to keep the hard disk at an appropriate working temperature. This can not only improve the stability of the entire system, but also increase the life of the hard disk, thereby reducing system costs. In addition, when the fan fails, the MCU detects that the temperature of the hard disk is too high and will send an alarm, thereby improving the reliability of the system.

In the embodiment of the present invention, the MCU specifically includes but is not limited to a single chip microcomputer, ARM, CPLD and the like. The temperature sensors include but not limited to thermistors, thermocouples and digital temperature sensors. When the fan fails, the MCU detects that the temperature of the hard disk is too high and can also issue an alarm, thereby improving the stability and reliability of the system. The alarm methods specifically include but are not limited to buzzers, LED indicators, and the like.

Wherein, the heat dissipation fan is responsible for cooling the hard disk, and the fan receives control data sent from the MCU to change the speed of the fan in real time. The hard disk is responsible for storing data of the entire storage system.

The present invention provides power supply and data interface to the hard disk through the hard disk backplane, and reads the temperature near the hard disk through the microcontroller on the backplane, and regulates the fan speed according to the temperature value. When the fan fails, the MCU detects that the hard disk temperature is too high and can also send an alarm, thereby improving the stability and reliability of the system.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (6)

1. a Hard disk heat radiation system is characterized in that: include hard disk backboard, the radiator fan that is connected with hard disk backboard respectively, hard disk, temperature sensor and warning device; Wherein, be integrated with on the described hard disk backboard and be integrated with microcontroller, temperature sensor and fan interface on the plate, by MCU integrated on the backboard, temperature sensor and fan interface, MCU detects the temperature of close hard disk part on the backboard in real time, just comes rotation speed of the fan is controlled according to temperature.

2. according to the described Hard disk heat radiation of claim 1 system, it is characterized in that: described hard disk backboard is powered to hard disk and data transmission interface is provided.

3. according to the described Hard disk heat radiation of claim 2 system, it is characterized in that: the microcontroller on the described hard disk backboard is used for reading near the temperature the hard disk, regulates and control the rotating speed of fan according to temperature value, and hard disk is remained on the suitable working temperature.

4. according to the described Hard disk heat radiation of claim 3 system, it is characterized in that: described MCU is single-chip microcomputer or ARM, perhaps CPLD.

5. according to the described Hard disk heat radiation of claim 4 system, it is characterized in that: described temperature sensor is thermistor or thermopair, perhaps digital temperature sensor.

6. according to the described Hard disk heat radiation of claim 5 system, it is characterized in that: described radiator fan is used for dispelling the heat to hard disk, and the control data that this fan reception is sent from MCU are come the rotating speed of real time altering fan; Described hard disk is responsible for the storage of the data of whole storage system.

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