Storage device humidity detection and adjustment system and storage device

Abstract

The utility model belongs to the technical field of server temperature detection and adjustment, and particularly provides a storage device humidity detection and adjustment system and a storage device, the system comprises a power supply module, a fan module, a BMC chip and a humidity sensor which are arranged in a storage device case; the humidity sensor is connected with a first comparator through a signal processing module; the first comparator is connected with the BMC chip; the power supply module is connected with the fan module through the switching circuit; and the BMC chip is connected with the switching circuit. The switching circuit is controlled through the BMC chip, the system can accurately adjust the running state of the fan module according to needs, and unnecessary energy consumption waste is avoided. In addition, due to the automatic and intelligent management mode, the frequency of manual inspection and intervention is reduced, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of server humidity detection and adjustment, and specifically relates to a storage device humidity detection and adjustment system and a storage device. Background Art

[0002] Currently, during the transportation of storage devices in winter or rainy days, after the devices reach their destinations, the storage devices may have excessive humidity, resulting in the devices being unable to boot, or after the devices are powered on, due to excessive humidity, the lifespan of the device components is shortened during long-term operation and so on. Research shows that when the relative humidity of the air is greater than 65%, a water film with a thickness of 0.001 - 0.01 μm will adhere to the surface of the object; when the humidity is 100%, the water film thickness is 10 μm. Such a water film can easily cause changes in the physical and chemical properties of materials or devices, such as corrosion, breakdown, short circuit, etc., which will seriously reduce the reliability of the circuit.

[0003] Currently, storage devices generally reduce the possible impact of humidity by setting better sealed transportation. Correspondingly, the humidity management of storage devices often uses simple humidity indicators, which are not only inefficient but also unable to adjust the humidity environment inside the storage device in real time and accurately. Summary of the Invention

[0004] Aiming at the problem that the performance of storage devices is reduced due to excessive humidity, the utility model provides a storage device humidity detection and adjustment system and a storage device.

[0005] In the first aspect, the utility model provides a storage device humidity detection and adjustment system, which includes a power module, a fan module, a BMC chip, and a humidity sensor arranged inside the chassis of the storage device;

[0006] The humidity sensor is connected to a first comparator through a signal processing module;

[0007] The first comparator is connected to the BMC chip;

[0008] The power module is connected to the fan module through a switch circuit;

[0009] The BMC chip is connected to the switch circuit.

[0010] Through the control of the switch circuit by the BMC chip, the system can accurately adjust the operating state of the fan module as needed, avoiding unnecessary energy consumption waste. In addition, the automated and intelligent management method reduces the frequency of manual inspections and interventions, and reduces the operation and maintenance costs.

[0011] As a preference of the technical solution of the present utility model, the signal processing module is connected to the positive input terminal of the comparator, and a reference voltage module is connected to the negative input terminal of the first comparator; the output terminal of the first comparator is connected to the BMC chip.

[0012] As a preference of the technical solution of the present utility model, the power supply module includes a power supply interface, an AC voltage conversion module, a voltage conversion module, and a power supply battery;

[0013] The power supply interface is used to connect to external alternating current;

[0014] The power supply interface outputs a first power supply through the AC voltage conversion module;

[0015] The first power supply outputs a second power supply and a third power supply through the voltage conversion module;

[0016] The first power supply is connected to the power supply battery through a charging circuit;

[0017] Both the first power supply and the power supply battery are connected to the fan module through a switching circuit.

[0018] The design of the power supply module fully considers the requirements of stability and reliability. Through the AC voltage conversion module and the voltage conversion module, the system can stably output multiple power supplies to meet the power supply requirements of different components. At the same time, the addition of the power supply battery as a backup power supply ensures that the system can continue to operate in case of an external power failure, improving the emergency response ability and overall reliability of the system.

[0019] As a preference of the technical solution of the present utility model, the voltage conversion module includes a first step-down conversion chip and a second step-down conversion chip;

[0020] The first power supply is connected to the power supply terminal of the first step-down conversion chip through the serially connected resistor R1 and diode D1. The power supply terminal of the first step-down conversion chip is also grounded through the parallel-connected capacitors C2 and C3 respectively. The power supply terminal of the first step-down conversion chip is also grounded through the serially connected resistors R2 and R3. The power supply terminal of the first step-down conversion chip is also connected to the control terminal of the power supply terminal of the first step-down conversion chip through resistor R4. The undervoltage comparison input terminal of the power supply terminal of the first step-down conversion chip is connected to the serial connection point of resistors R2 and R3. The conversion node terminal of the power supply terminal of the first step-down conversion chip outputs a second power supply through inductor L1. Among them, the conversion node terminal of the power supply terminal of the first step-down conversion chip is connected to the first end of inductor L1. The internal regulated output terminal of the power supply terminal of the first step-down conversion chip is grounded through capacitor C5. The second end of inductor L1 is connected to the feedback terminal of the first step-down conversion chip through the parallel-connected capacitor C6 and resistor R5. The feedback terminal of the first step-down conversion chip is also grounded through resistor R6. The second end of the inductor is also grounded through capacitor C7. The second end of inductor L1 is also connected to the power supply terminal of the second step-down conversion chip. The control terminal of the second step-down conversion chip is connected to the power supply terminal of the second step-down conversion chip. The power supply terminal of the second step-down conversion chip is also grounded through capacitor C8. The output terminal of the second step-down conversion chip outputs a third power supply. The output terminal of the second step-down conversion chip is grounded through the parallel-connected capacitors C10 and C11.

[0021] Preferably, as a technical solution of the present utility model, the charging circuit includes a power supply battery voltage acquisition unit, a charging drive control unit, and a charging switch unit;

[0022] The power supply battery is connected to the charging drive control unit through the power supply battery voltage acquisition unit. The charging drive control unit is connected to the charging switch unit. The charging drive control unit is connected to the second power supply. The first power supply is connected to the power supply battery through the charging switch unit.

[0023] Preferably, as a technical solution of the present utility model, the charging drive control unit includes a second comparator. The positive input terminal of the second comparator is connected to the reference voltage module. The negative input terminal of the second comparator is grounded. The output terminal of the second comparator is connected to the charging switch unit through resistor R8 and diode D2. The power supply terminal of the second comparator is connected to the second power supply. The power supply terminal of the second comparator is also grounded through capacitor C12. The output terminal of the second comparator is also connected to the power supply terminal of the second comparator through resistor R7;

[0024] The charging switch unit includes triode Q1 and triode Q2. The cathode of diode D2 is connected to the base of triode Q1. The emitter of triode Q1 is grounded. The collector of triode Q1 is connected to the first power supply through resistor R11, diode D4 and diode D5 connected in series, where the first power supply is connected to the anode of diode D5, and the connection point of the cathode of diode D4 and resistor R11 is connected to the base of triode Q2. The emitter of triode Q2 is connected to the first power supply through resistor R13. The collector of triode Q2 is connected to the positive terminal of the power supply battery through resistor R12 and diode D3 connected in series, where the anode of diode D3 is connected to resistor R12;

[0025] The power supply battery voltage acquisition unit includes resistor R9 and resistor R10. The positive terminal of the power supply battery is connected to the inverting input terminal of the second comparator through resistor R10 and resistor R9 connected in series;

[0026] The first power supply outputs power supply VCC through diode D6, and the power supply battery outputs power supply VCC through diode D7.

[0027] As an optimization of the technical solution of the present utility model, the signal processing module includes an operational amplifier, a voltage follower and a filter amplifier;

[0028] The humidity sensor is respectively connected to the input terminal of the operational amplifier through resistor R14 and resistor R15. The output terminal of the operational amplifier is connected to the voltage follower. The output terminal of the voltage follower is connected to the inverting output terminal of the filter amplifier through resistor R16. The non-inverting input terminal of the filter amplifier is grounded through resistor R17. The output terminal of the filter amplifier is connected to the inverting input terminal of the filter amplifier through resistor R18 and capacitor C14 connected in parallel. The output terminal of the filter amplifier is connected to the first comparator.

[0029] The signal collected by the output sensor is amplified by the operational amplifier. Designing the voltage follower as a buffer stage can also play an isolation role to improve the filtering quality of the filter amplifier. According to the sampling frequency, a low-pass filter is set in this application.

[0030] As an optimization of the technical solution of the present utility model, the switch circuit includes triode Q3 and relay KA;

[0031] The emitter of triode Q3 is grounded. The collector of triode Q3 is connected to the third power supply through the relay coil and resistor R20. Diode D8 is connected in parallel at both ends of the relay coil. The positive terminal of power supply VCC is connected to the negative terminal of power supply VCC through the normally open switch of the relay and the fan module;

[0032] The positive input terminal of the first comparator is connected to the output terminal of the filtering amplifier. The negative input terminal of the first comparator is connected to the reference voltage module. The output terminal of the first comparator is connected to the BMC chip through a resistor R19, and the BMC chip is connected to the base of the triode Q3.

[0033] As an optimization of the technical solution of the present utility model, the reference voltage module includes a reference voltage chip, and the reference voltage chip outputs a reference voltage with a set voltage value.

[0034] In a second aspect, the present utility model further provides a storage device, and the storage device includes the system as described in the first aspect.

[0035] As can be seen from the above technical solutions, the present utility model has the following advantages: Through the cooperation of the high-precision humidity sensor and the signal processing module, the system can capture and accurately process the humidity data inside the storage device in real time, ensuring the accuracy and reliability of humidity monitoring. This high-precision monitoring provides a solid foundation for subsequent humidity adjustment. The humidity data is compared with the reference voltage through the first comparator, and the comparison result is input into the BMC chip. In this application, it is set that when the comparison result indicates that the humidity is too high, the first comparator outputs a high level to the control terminal of the BMC chip. After the control terminal of the BMC chip receives the high level, the BMC outputs a high level to drive the conduction of the triode Q3. At this time, the power supply is connected across the fan module and the fan module operates to perform a dehumidification action. This regulation mechanism greatly reduces the need for manual intervention and improves the efficiency and response speed of humidity management.

[0036] By monitoring and adjusting the humidity in real time, this system effectively avoids the risks of equipment damage and data loss caused by excessive humidity, thereby extending the service life of the equipment and ensuring the security and integrity of the data.

[0037] In addition, the design principle of the present utility model is reliable, the structure is simple, and it has a very wide application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0039] Figure 1 is a schematic block diagram of the system according to an embodiment of the present utility model.

[0040] Figure 2 is a schematic circuit connection diagram of the voltage conversion module in the embodiment of the present utility model.

[0041] Figure 3It is a schematic diagram of the connection of the charging circuit in the embodiment of the present utility model.

[0042] Figure 4 It is a circuit connection diagram of the signal processing module in the embodiment of the present utility model.

[0043] Figure 5 It is a schematic diagram of the connection of the switch circuit in the embodiment of the present utility model. Detailed implementation manners

[0044] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0045] As Figure 1 shown, the embodiment of the present utility model provides a humidity detection and adjustment system for a storage device, including a power module, a fan module, a BMC chip, and a humidity sensor arranged in the chassis of the storage device;

[0046] The humidity sensor is connected to a first comparator through a signal processing module;

[0047] The first comparator is connected to the BMC chip;

[0048] The power module is connected to the fan module through a switch circuit;

[0049] The BMC chip is connected to the switch circuit.

[0050] The BMC outputs high and low levels to the switch circuit according to the comparison result of the first comparator. Through the control of the switch circuit by the BMC chip, the system can accurately adjust the operating state of the fan module as needed, avoiding unnecessary energy consumption waste. In addition, the automated and intelligent management method reduces the frequency of manual inspections and interventions, and reduces the operation and maintenance costs.

[0051] It should be noted that the signal processing module is connected to the positive input terminal of the comparator, the reverse input terminal of the first comparator is connected to a reference voltage module; the output terminal of the first comparator is connected to the BMC chip.

[0052] Here, the reference voltage output from the reference voltage module to the first comparator is determined by the devices in the specific circuit design. In this application, 50% humidity is set as the standard for the reference voltage input to the first comparator. In the embodiment of the present utility model, the reference voltage input to the first comparator is 2.5V.

[0053] In some embodiments, the power supply module includes a power supply interface, an AC voltage conversion module, a voltage conversion module, and a power supply battery;

[0054] The power supply interface is used to connect to external alternating current;

[0055] The power supply interface outputs a first power supply through the AC voltage conversion module;

[0056] The first power supply outputs a second power supply and a third power supply through the voltage conversion module;

[0057] The first power supply is connected to the power supply battery through a charging circuit;

[0058] Both the first power supply and the power supply battery are connected to the fan module through a switching circuit.

[0059] The design of the power supply module fully considers the requirements of stability and reliability. Through the AC voltage conversion module and the voltage conversion module, the system can stably output multiple power supplies to meet the power supply needs of different components. At the same time, the addition of the power supply battery as a backup power supply ensures that the system can still operate when the external power supply of the system fails, improving the emergency response ability and overall reliability of the system.

[0060] In some embodiments, as Figure 2 shown, the voltage conversion module includes a first buck conversion chip and a second buck conversion chip;

[0061] The first power supply is connected to the power supply terminal of the first buck conversion chip through a series-connected resistor R1 and diode D1. The power supply terminal of the first buck conversion chip is also grounded respectively through a parallel-connected capacitor C2 and capacitor C3. The power supply terminal of the first buck conversion chip is also grounded through a series-connected resistor R2 and resistor R3. The power supply terminal of the first buck conversion chip is also connected to the control terminal of the power supply terminal of the first buck conversion chip through a resistor R4. The undervoltage comparison input terminal of the power supply terminal of the first buck conversion chip is connected to the series connection point of resistor R2 and resistor R3. The conversion node terminal of the power supply terminal of the first buck conversion chip outputs a second power supply through an inductor L1. Among them, the conversion node terminal of the power supply terminal of the first buck conversion chip is connected to the first end of the inductor L1. The internal regulated output terminal of the power supply terminal of the first buck conversion chip is grounded through a capacitor C5. The second end of the inductor L1 is connected to the feedback terminal of the first buck conversion chip through a parallel-connected capacitor C6 and resistor R5. The feedback terminal of the first buck conversion chip is also grounded through a resistor R6. The second end of the inductor is also grounded through a capacitor C7. The second end of the inductor L1 is also connected to the power supply terminal of the second buck conversion chip. The control terminal of the second buck conversion chip is connected to the power supply terminal of the second buck conversion chip. The power supply terminal of the second buck conversion chip is also grounded through a capacitor C8. The output terminal of the second buck conversion chip outputs a third power supply. The output terminal of the second buck conversion chip is grounded through a parallel-connected capacitor C10 and capacitor C11.

[0062] Through a carefully designed circuit layout, including a combination of series resistors, diodes, inductors, and multiple parallel capacitors, the first buck conversion chip can effectively convert the input first power supply into a stable second power supply output. This design not only reduces the energy loss during the voltage conversion process, improves the conversion efficiency, but also enhances the stability of the output voltage through the filtering effect of the capacitors, ensuring stable power supply for the subsequent circuits.

[0063] The circuit includes a design of an undervoltage comparison input terminal. When the input voltage is lower than the set threshold, the first buck conversion chip can automatically stop working to prevent damage to the circuit or affect the output quality due to too low voltage. In addition, through the resistor voltage division network and feedback mechanism, the system can monitor the output voltage in real time and make adjustments as needed to ensure the accuracy and stability of the output voltage.

[0064] The design of the second buck conversion chip enables the circuit to further convert the second power supply into a third power supply to meet the different voltage requirements of different circuit components. This multi-stage buck conversion design improves the adaptability and flexibility of the circuit, enabling the system to be more widely applied to various storage devices.

[0065] As a preference of the technical solution of the present utility model, as Figure 3As shown, the charging circuit includes a power supply battery voltage acquisition unit, a charging drive control unit, and a charging switch unit;

[0066] The power supply battery is connected to the charging drive control unit through the power supply battery voltage acquisition unit. The charging drive control unit is connected to the charging switch unit. The charging drive control unit is connected to the second power supply. The first power supply is connected to the power supply battery through the charging switch unit.

[0067] Specifically, the charging drive control unit includes a second comparator. The positive input terminal of the second comparator is connected to a reference voltage module. The negative input terminal of the second comparator is grounded. The output terminal of the second comparator is connected to the charging switch unit through a resistor R8 and a diode D2. The power supply terminal of the second comparator is connected to the second power supply. The power supply terminal of the second comparator is also grounded through a capacitor C12. The output terminal of the second comparator is also connected to the power supply terminal of the second comparator through a resistor R7;

[0068] The charging switch unit includes a triode Q1 and a triode Q2. The cathode of the diode D2 is connected to the base of the triode Q1. The emitter of the triode Q1 is grounded. The collector of the triode Q1 is connected to the first power supply through a series connection of a resistor R11, a diode D4, and a diode D5. The first power supply is connected to the anode of the diode D5. The connection point of the cathode of the diode D4 and the resistor R11 is connected to the base of the triode Q2. The emitter of the triode Q2 is connected to the first power supply through a resistor R13. The collector of the triode Q2 is connected to the positive terminal of the power supply battery through a series connection of a resistor R12 and a diode D3. The anode of the diode D3 is connected to the resistor R12;

[0069] The power supply battery voltage acquisition unit includes a resistor R9 and a resistor R10. The positive terminal of the power supply battery is connected to the negative input terminal of the second comparator through a series connection of the resistor R10 and the resistor R9;

[0070] The first power supply outputs a power supply VCC through a diode D6. The power supply battery outputs a power supply VCC through a diode D7.

[0071] The charging circuit provided in this application actually collects the output voltage of the power supply battery through the resistor R9 and the resistor R10 and gives it to the second comparator for comparison with the set charging reference point voltage. Charging is only allowed when it is less than the set charging reference voltage. That is, the purpose of setting the second comparator and the peripheral connection circuit is to ensure that the power supply battery is only allowed to charge when it has the first set reference voltage. The reference voltage value input to the second comparator is set to 6V in the embodiment of the present utility model.

[0072] Since the first power supply outputs through AC rectification and transformation, and the highest ideal voltage of the power supply battery is the voltage of the first power supply. Generally, the voltage output by AC rectification and transformation is higher than the voltage of the power supply battery. At this time, the output power supply VCC is output by the first power supply, and the output of the battery will be blocked by the diode D7. This design avoids the mixed use of the first power supply and the power supply battery. When the voltage of the power supply battery is less than the set charging reference voltage, the second comparator outputs a high level and outputs to the triode Q1 through the isolation of the diode D2 to make the triode Q1 conduct. After the triode Q1 conducts, the base of the triode Q2 is connected to a low level, and the triode Q2 also conducts. The first power supply is connected to the positive pole of the power supply battery through the resistor R13, the resistor D12 and the diode D3 to charge the power supply battery.

[0073] First, this application sets the power supply battery as a backup power supply. Through the second comparator in the charging drive control unit, this circuit can intelligently monitor the voltage status of the power supply battery. By comparing the reference voltage with the actual voltage of the power supply battery, the control unit can accurately judge whether the battery needs to be charged and when to stop charging, thus avoiding damage to the battery caused by overcharging or over-discharging and extending the service life of the battery. The charging switch unit adopts the cascaded control of the triodes Q1 and Q2 to achieve precise control of the charging process. When charging is required, the charging drive control unit drives the triode Q2 to conduct by controlling the conduction of the triode Q1, so that the first power supply can charge the power supply battery safely and efficiently through the current-limiting resistor R12 and the diode D3. This design not only improves the charging efficiency but also ensures the safety of the charging process. The power supply battery voltage acquisition unit converts the high voltage of the power supply battery into a low voltage suitable for the input of the second comparator through a precise resistor voltage division network (R9 and R10), realizing the precise acquisition of the voltage of the power supply battery. This design improves the accuracy of voltage monitoring and provides a reliable judgment basis for the charging drive control unit.

[0074] In some embodiments, such as Figure 4 shown, the signal processing module includes an operational amplifier, a voltage follower, and a filter amplifier;

[0075] The humidity sensor is respectively connected to the input end of the operational amplifier through the resistors R14 and R15. The output end of the operational amplifier is connected to the voltage follower. The output end of the voltage follower is connected to the inverting output end of the filter amplifier through the resistor R16. The non-inverting input end of the filter amplifier is grounded through the resistor R17. The output end of the filter amplifier is connected to the inverting input end of the filter amplifier through the parallel-connected resistors R18 and the capacitor C14. The output end of the filter amplifier is connected to the first comparator.

[0076] The signal collected by the output sensor is amplified by an operational amplifier. Designing a voltage follower as a buffer stage can also play an isolation role to improve the filtering quality of the filter amplifier. According to the sampling frequency, a low-pass filter is set in this application.

[0077] In some embodiments, such as Figure 5 shown, the switch circuit includes a triode Q3 and a relay KA;

[0078] The emitter of the triode Q3 is grounded, the collector of the triode Q3 is connected to the third power supply through the relay coil and the resistor R20. A diode D8 is connected in parallel at both ends of the relay coil. The positive terminal of the power supply VCC is connected to the negative terminal of the power supply VCC through the normally open switch of the relay and the fan module;

[0079] The positive input terminal of the first comparator is connected to the output terminal of the filter amplifier, the negative input terminal of the first comparator is connected to the reference voltage module, and the output terminal of the first comparator is connected to the BMC chip through the resistor R19. The BMC chip is connected to the base of the triode Q3.

[0080] When the first comparator outputs a high level to the control trigger terminal of the BMC chip through the resistor R19, the BMC chip outputs a high level to the base of the triode Q3, and the triode Q3 conducts. The third power supply is grounded through the resistor R20 and the relay coil, enabling the relay coil to be energized, so that the normally open switch of the relay closes, and the voltage source VCC powers the fan module. The fan module operates for dehumidification. The BMC chip latches or times the output high level so that the output high level lasts for a set time. When the high level signal at the control trigger terminal of the BMC chip becomes a low level signal or after the BMC chip outputs a high level for a set time, the BMC chip outputs a low level to the triode Q3 to make the triode Q3 cut off, controlling the fan module to stop working.

[0081] By monitoring specific conditions through the first comparator, when the preset threshold is reached, a high level signal is output to the control trigger terminal of the BMC chip. After receiving the signal, the BMC chip controls the start and stop of the fan module, realizing intelligent dehumidification control of the environment. This design improves the automation degree of the system and reduces the need for manual intervention.

[0082] When the BMC chip outputs a high level signal to the triode Q3, it can latch or time it to ensure that the fan module can work continuously for a set time. This precise time control function makes the dehumidification process more efficient and energy-saving, avoiding unnecessary energy waste.

[0083] Through the combined use of transistor Q3 and relay, the low-power and high-reliability control of the power supply of the fan module is achieved. When the BMC chip outputs a low level, transistor Q3 is cut off, the relay coil loses power, and the normally open switch disconnects, thus cutting off the power supply to the fan module and ensuring the safety of the system. At the same time, as an electrical isolation component, the relay also improves the anti-interference ability and stability of the overall circuit.

[0084] This design allows the timing settings of the BMC chip to be adjusted according to actual needs to adapt to different dehumidification scenarios and requirements. After receiving the power supply VCC, the fan module starts quickly, and the generated airflow accelerates the air circulation, thus effectively reducing the temperature and humidity inside the device. This efficient heat dissipation and dehumidification effect not only protects the internal electronic components of the device from damage caused by high temperature and humidity, but also improves the overall performance and reliability of the device.

[0085] It should be noted that the reference voltage module includes a reference voltage chip, and the reference voltage chip outputs a reference voltage with a set voltage value. Each reference voltage chip is set to output a reference voltage, that is, the total voltage reference module of this application includes two reference voltage chips.

[0086] The embodiment of the present invention also provides a storage device, and the storage device includes the system as described in the above embodiment.

[0087] Although the present invention has been described in detail by referring to the drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, those of ordinary skill in the art can make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions should all be within the scope covered by the present invention / Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered within the protection scope of the present invention.

Claims

1. A humidity detection and adjustment system for a storage device, characterized in that, It includes a power module, a fan module, a BMC chip, and a humidity sensor disposed within the storage device chassis; The humidity sensor is connected to a first comparator through a signal processing module; The first comparator is connected to the BMC chip; The power module is connected to the fan module through a switching circuit; The BMC chip is connected to the switching circuit; The signal processing module includes an operational amplifier, a voltage follower, and a filter amplifier; The humidity sensor is respectively connected to the input end of the operational amplifier through a resistor R14 and a resistor R15. The output end of the operational amplifier is connected to the voltage follower. The output end of the voltage follower is connected to the inverting output end of the filter amplifier through a resistor R16. The non-inverting input end of the filter amplifier is grounded through a resistor R17. The output end of the filter amplifier is connected to the inverting input end of the filter amplifier through a parallel-connected resistor R18 and a capacitor C14. The output end of the filter amplifier is connected to the first comparator.

2. The humidity detection and adjustment system for a storage device according to claim 1, wherein The signal processing module is connected to the non-inverting input end of the comparator. A reference voltage module is connected to the inverting input end of the first comparator. The output end of the first comparator is connected to the BMC chip.

3. The humidity detection and adjustment system for a storage device according to claim 2, wherein The power module includes a power interface, an AC voltage conversion module, a voltage conversion module, and a power supply battery; The power interface is used to connect to external alternating current; The power interface outputs a first power supply through the AC voltage conversion module; The first power supply outputs a second power supply and a third power supply through the voltage conversion module; The first power supply is connected to the power supply battery through a charging circuit; Both the first power supply and the power supply battery are connected to the fan module through the switching circuit.

4. The humidity detection and adjustment system of the storage device according to claim 3, characterized in that The voltage conversion module includes a first step-down conversion chip and a second step-down conversion chip; The first power supply is connected to the power supply terminal of the first buck conversion chip through a series-connected resistor R1 and diode D1. The power supply terminal of the first buck conversion chip is also grounded through a parallel-connected capacitor C2 and capacitor C3 respectively. The power supply terminal of the first buck conversion chip is also grounded through a series-connected resistor R2 and resistor R3. The power supply terminal of the first buck conversion chip is also connected to the control terminal of the power supply terminal of the first buck conversion chip through a resistor R4. The undervoltage comparison input terminal of the power supply terminal of the first buck conversion chip is connected to the series connection point of resistor R2 and resistor R3. The conversion node terminal of the power supply terminal of the first buck conversion chip outputs a second power supply through an inductor L1. Among them, the conversion node terminal of the power supply terminal of the first buck conversion chip is connected to the first end of the inductor L1. The internal regulated output terminal of the power supply terminal of the first buck conversion chip is grounded through a capacitor C5. The second end of the inductor L1 is connected to the feedback terminal of the first buck conversion chip through a parallel-connected capacitor C6 and resistor R5. The feedback terminal of the first buck conversion chip is also grounded through a resistor R6. The second end of the inductor is also grounded through a capacitor C7. The second end of the inductor L1 is also connected to the power supply terminal of the second buck conversion chip. The control terminal of the second buck conversion chip is connected to the power supply terminal of the second buck conversion chip. The power supply terminal of the second buck conversion chip is also grounded through a capacitor C8. The output terminal of the second buck conversion chip outputs a third power supply. The output terminal of the second buck conversion chip is grounded through a parallel-connected capacitor C10 and capacitor C11.

5. The humidity detection and adjustment system for a storage device according to claim 4, wherein The charging circuit includes a power supply battery voltage acquisition unit, a charging drive control unit, and a charging switch unit; The power supply battery is connected to the charging drive control unit through the power supply battery voltage acquisition unit. The charging drive control unit is connected to the charging switch unit. The charging drive control unit is connected to the second power supply. The first power supply is connected to the power supply battery through the charging switch unit.

6. The humidity detection and adjustment system for a storage device according to claim 5, wherein, The charging drive control unit includes a second comparator. The positive input terminal of the second comparator is connected to the reference voltage module. The negative input terminal of the second comparator is grounded. The output terminal of the second comparator is connected to the charging switch unit through a resistor R8 and a diode D2. The power supply terminal of the second comparator is connected to the second power supply. The power supply terminal of the second comparator is also grounded through a capacitor C12. The output terminal of the second comparator is also connected to the power supply terminal of the second comparator through a resistor R7; The charging switch unit includes a triode Q1 and a triode Q2. The cathode of the diode D2 is connected to the base of the triode Q1. The emitter of the triode Q1 is grounded. The collector of the triode Q1 is connected to the first power supply through a series-connected resistor R11, diode D4, and diode D5. Among them, the first power supply is connected to the anode of the diode D5. The connection point of the cathode of the diode D4 and the resistor R11 is connected to the base of the triode Q2. The emitter of the triode Q2 is connected to the first power supply through a resistor R13. The collector of the triode Q2 is connected to the positive terminal of the power supply battery through a series-connected resistor R12 and a diode D3. Among them, the anode of the diode D3 is connected to the resistor R12; The power supply battery voltage acquisition unit includes a resistor R9 and a resistor R10. The positive terminal of the power supply battery is connected to the inverting input terminal of the second comparator through the serially connected resistor R10 and resistor R9; The first power supply outputs the power supply VCC through a diode D6, and the power supply battery outputs the power supply VCC through a diode D7.

7. The humidity detection and adjustment system for a storage device according to claim 6, wherein The switch circuit includes a triode Q3 and a relay KA; The emitter of the triode Q3 is grounded. The collector of the triode Q3 is connected to the third power supply through a relay coil and a resistor R20. A diode D8 is connected in parallel across both ends of the relay coil. The positive terminal of the power supply VCC is connected to the negative terminal of the power supply VCC through the normally open switch of the relay and the fan module; The non-inverting input terminal of the first comparator is connected to the output terminal of the filter amplifier. The inverting input terminal of the first comparator is connected to the reference voltage module. The output terminal of the first comparator is connected to the BMC chip through a resistor R19. The BMC chip is connected to the base of the triode Q3.

8. The humidity detection and adjustment system for a storage device according to any one of claims 2-7, characterized in that The reference voltage module includes a reference voltage chip, and the reference voltage chip outputs a reference voltage with a set voltage value.

9. A storage device, characterized in that, The storage device includes the system according to any one of claims 1-8.

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