Miniature direct-current electricity storage device

Abstract

The utility model relates to the technical field of mobile power supplies, in particular to a miniature direct-current power storage device, which comprises a charging boosting unit, a battery, a battery protection unit and an output voltage stabilizing unit, the charging boosting unit boosts input voltage to rechargeable voltage of the battery and charges the battery, the battery protection unit checks in real time while charging, and the output voltage stabilizing unit outputs voltage to the battery protection unit. And if overvoltage exists, the charging boosting unit is controlled to stop working, and the battery provides electric energy for the output voltage stabilizing unit, so that the output unit continuously provides stable voltage output to the outside. A common mobile power supply has an alternating-current type or a mobile phone power bank type, is rare in direct-current type, is not novel and is inconvenient to use even if the design is provided, the direct-current mobile power supply is improved in multiple aspects, firstly, a lithium battery is used, so that the power storage efficiency is improved, secondly, multiple circuit protections are provided, the use is safe, and thirdly, intelligent power supply is provided, so that the service life of the mobile power supply is prolonged. And the lithium battery is kept in a saturated state and can be used for a long time. The uninterruptible power supply is mainly used for equipment with high requirements on power supply stability and provides an uninterruptible power supply.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent device interface switching field, concretely is a micro direct current electricity storage device. BACKGROUND

[0002] The commonly used mobile power supply has AC style or mobile phone power bank style, and direct current type is rare, even if there is design, is not novel, and is more inconvenient to use, the utility model makes the direct current type mobile power supply, makes a plurality of improvements, first uses lithium battery, makes the electricity storage efficiency improve, second has multiple circuit protection, uses safety, third intelligence power supply makes lithium battery keep saturation state frequently, provides longer use time.

[0003] It is mainly used for providing uninterrupted power supply for the equipment that requires high stability of power supply. When the mains input is normal, the UPS supplies the mains voltage to the load, at this time, the UPS is an AC type voltage stabilizer, and it also charges the battery in the machine. When the mains is interrupted (accidental power failure), the MINI UPS immediately switches to the MINI UPS power supply with zero delay, so that the load maintains normal work and protects the load software and hardware from damage. The UPS device usually provides protection against voltage overload or voltage undershoot. The product is provided with a control switch and an indicator lamp on the front face of the main body. The existing MINI UPS has low load capacity and is difficult to meet the demand of large power equipment. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a micro direct current electricity storage device, which comprises a charging and voltage boosting unit, a battery, a battery protection unit and an output voltage stabilizing unit. The charging and voltage boosting unit boosts the input voltage to the chargeable voltage of the battery to charge the battery. The battery protection unit controls whether the voltage is overvoltage in real time. If the voltage is overvoltage, the charging and voltage boosting unit stops working. The battery provides power for the output voltage stabilizing unit, so that the output unit continuously provides stable voltage output.

[0005] The charging and voltage boosting unit comprises an input end, a voltage boosting circuit and an output end. The voltage boosting circuit amplifies the voltage of the input end into high voltage with a MOS switching circuit, and then provides stable voltage to the battery through a voltage stabilizing and shaping circuit.

[0006] The battery amplifies the voltage into high voltage with the MOS switching circuit, and then obtains stable voltage through the battery protection circuit. The stable voltage is provided to the output unit of the device. The charging and voltage boosting unit also has stable voltage provided by the MOS switching circuit and the voltage stabilizing and shaping circuit. When the battery has power, the charging and voltage boosting unit directly supplies power to the output unit of the device without using the battery power.

[0007] Third, the battery protection unit, the battery allows charging voltage has an upper limit, can protect the battery and avoid danger, the battery protection unit, the voltage output of the boost circuit is controlled in a safe range, and if it exceeds, the charging boost unit will be controlled to be closed.

[0008] Fourth, the output voltage stabilizing unit is parallelly connected by the battery output and the battery protection unit output.

[0009] Preferably, the battery protection unit protects the battery input circuit and the battery output circuit bidirectionally.

[0010] Preferably, the device comprises the charging boost unit, the battery, the battery protection unit and the output voltage stabilizing unit, can be placed in the main shell, and can be connected with the power supply equipment in a lead wire mode and can be used mobilely.

[0011] Compared with the prior art, the device has the advantages that:

[0012] 1. The lithium battery is used, and the power storage efficiency is improved.

[0013] 2. Multiple circuit protection is used, and the use is safe.

[0014] 3. The intelligent power supply makes the lithium battery keep in a saturated state frequently, and a longer use time is provided.

[0015] 4. The device has a foolproof quick connector, and the input and output cannot be connected in error, and the device is convenient to disassemble and move. DETAILED DESCRIPTION

[0016] Figure 1 It is a schematic structural view of a micro direct current power storage device.

[0017] Figure 2 It is a schematic view of a battery protection circuit unit of a micro direct current power storage device.

[0018] Figure 3 It is a schematic view of a micro direct current power storage device.

[0019] Figure 4 It is a schematic view of a PCB example of a micro direct current power storage device.

[0020] Explanation of the drawing symbols:

[0021] 10-boosting unit; 11-input end; 12-boosting circuit; 13-output end; 14-MOS switching circuit; 11-input end 20-battery; 30-battery protection unit; 31-battery protection unit input one; 32-battery protection unit output one; 33-battery protection unit input two; 34-battery protection unit output two; 40-output voltage stabilizing unit; 50-device output end unit; DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the utility model.

[0023] As Figures 1 to 4 shown in the figure, the utility model provides the following technical scheme to realize the above-mentioned purpose: the utility model is a kind of micro direct current electric storage device, as Figure 1 shown, device includes charging boost unit 10, battery 20, battery protection unit 30 and output voltage stabilizing unit 40, charging boost unit is input voltage, rises to the chargeable voltage of battery, battery 20 is charged, charging at the same time battery protection unit, whether it is overvoltage in real time, if there is overvoltage control charging boost unit 10 stop working, battery provides the power of output voltage stabilizing unit 40, so that output unit continuously provides stable voltage output to the outside.

[0024] One is charging boost unit 10, as Figure 2 shown, the input end 11, boost circuit 12 and output end 13 are divided, boost circuit 12 amplifies the voltage of input end 11 into waveform high voltage through MOS switching circuit 14, then stable voltage is given to battery through voltage stabilizing and shaping circuit.

[0025] Second, battery 20 is amplified into waveform high voltage through MOS switching circuit 14, then stable voltage is obtained through battery protection unit 30.In providing device output end unit 50;Device output end has the stable voltage amplified into waveform high voltage through MOS switching circuit 14 again, through voltage stabilizing and shaping circuit, under the condition of having electricity in charging boost unit 10, directly power supply is given to device output end unit 50, without using battery power.

[0026] Third, battery protection unit 30, battery allows the upper limit of charging voltage, can protect battery and avoid danger, battery protection unit controls the voltage output of boost circuit in safe range, such as exceeding will control to close charging boost unit 10.As Figure 2 shown, the voltage output of MOS switching circuit 14 is connected to battery protection unit input one 31, accesses battery protection unit 30, then passes through battery protection unit output one 32, and is connected to battery 20;Connected to battery 20 is connected to battery protection unit input two 33, accesses battery protection unit 30, then passes through battery protection unit output two 34, and is connected to output voltage stabilizing unit 40;The input and output of battery 20 are protected by battery protection unit 30, to ensure the safe use of equipment.

[0027] The fourth is the output voltage stabilizing unit 40, which is parallelly connected by the battery output 22 and the battery protection unit output 32.

[0028] As shown in the figure, when the MOS switching circuit 14 is powered, the output voltage stabilizing unit 40 can be powered through the battery protection unit 30, and at the same time, the battery is charged. When the MOS switching circuit 14 is not powered, the battery 20 provides power to the output voltage stabilizing unit 40 through the battery protection unit 30. Figure 2

[0029] Among them, the preferred solution is that the battery protection unit 30 protects the battery input loop and the battery output loop in both directions.

[0030] Among them, the preferred solution is that when the MOS switching circuit 14 is powered, the output voltage stabilizing unit 40 can be powered through the battery protection unit 30, and at the same time, the battery is charged, so that the battery is always in a full state. Once the MOS switching circuit 14 is not powered, the battery 20 can provide power to the output voltage stabilizing unit 40 through the battery protection unit 30 for a long time.

[0031] Among them, the preferred solution is that the device, as shown in the figure, contains the charging voltage boosting unit 10, the battery 20, the battery protection unit 30, and the output voltage stabilizing unit 40, which can be placed in the main shell 60 and connected to the powered equipment through the lead 70 for mobile use. Figure 3

[0032] Among them, the preferred solution is to use lithium batteries to improve the storage efficiency, reduce switching changes, and shorten switching time.

[0033] Among them, the preferred solution is to charge the power supply once every 3-5 months if it is not used for a long time.

[0034] Among them, the preferred solution is that the UPS power supply has a large charging current, an intelligent identification adapter power supply capacity, and a small current charging switching adjustment according to voltage drop; and has an overcurrent voltage reduction adjustment.

[0035] Among them, the preferred solution is that there can be multiple protections such as hardware and single-chip microcomputer control.

[0036] Among them, the preferred solution is that there is a low-battery prompt signal for lithium batteries, an external power supply, or a lithium battery power supply prompt signal.

[0037] Among them, the preferred solution is that the internal lithium battery group has perfect overcharge, overdischarge, overcurrent, and short circuit protection.

[0038] Among them, the preferred solution is that, as shown in the figure, the charging voltage boosting unit 10, the battery 20, the battery protection unit 30, and the output voltage stabilizing unit 40 can be placed in the main shell 60 and connected to the powered equipment through the lead 70 for mobile use. Figure 4 ​​As shown, the input end 11, the voltage boosting circuit 12, the battery protection unit 30 and the output end 13 are integrated in the same PCB; the voltage boosting circuit 12 amplifies the voltage of the input end 11 into a high voltage waveform through the MOS switching circuit 14, and then provides a stable voltage to the battery 20 through the voltage stabilizing and shaping circuit.

[0039] The preferred scheme is to have multiple circuit protection, use safety, and provide intelligent power supply to keep the lithium battery in a saturated state for a longer use time.

[0040] The preferred scheme is that the input port and the output port are different to prevent mistakes, such as

[0041] The input 11 port is a 5.5*2.1mm DC female seat; the output 13 port is a 5.5*2.5mm DC female seat. There is a foolproof quick connector that cannot input and output incorrectly and is convenient to disassemble and move.

[0042] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

[0043] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be included in the protection scope of the utility model.

[0044] The model of each device in the embodiments of the utility model is not limited except for special description, and devices that can complete the above functions are all acceptable. Those skilled in the art can understand that the drawings are only a schematic diagram of a preferred embodiment, and the above embodiment serial numbers are only for description, not representing the advantages and disadvantages of the embodiments. The above is only a preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A micro DC power storage device, characterized by, The device comprises a charging voltage boosting unit (10), a battery (20), a battery protection unit (30) and an output voltage stabilizing unit (40). The charging voltage boosting unit boosts the input voltage to the voltage at which the battery can be charged to charge the battery (20). The battery protection unit controls whether the voltage is overvoltage in real time. If the voltage is overvoltage, the charging voltage boosting unit (10) is stopped. The battery provides power for the output voltage stabilizing unit (40) to provide stable voltage output to the outside.

2. A miniature DC power storage device according to claim 1, wherein The charging voltage boosting unit (10) comprises an input end (11), a voltage boosting circuit (12) and an output end (13). The voltage boosting circuit (12) amplifies the voltage at the input end (11) into high voltage waveforms through a MOS switching circuit (14), and then provides stable voltage to the battery through a voltage stabilizing circuit.

3. The micro DC power storage device according to claim 1, wherein The battery (20) is amplified into high voltage waveforms through the MOS switching circuit (14), and then obtains stable voltage through the battery protection unit (30). The stable voltage is provided to the device output end unit (50). The device output end has stable voltage amplified into high voltage waveforms through the MOS switching circuit (14) and then through the voltage stabilizing circuit. Under the condition of having power, the stable voltage is directly provided to the device output end unit (50) without using the battery power.

4. The micro DC power storage device according to claim 1, wherein The battery protection unit (30) controls the voltage output of the voltage boosting circuit in a safe range. If the voltage exceeds the safe range, the battery protection unit controls the charging voltage boosting unit (10) to be closed.

5. The micro DC power storage device according to claim 1, wherein The output voltage stabilizing unit (40) is formed by the battery (20) output and the battery protection unit output (32) in parallel.

6. The micro DC power storage device according to claim 1, wherein The battery protection unit (30) protects the input loop and the output loop of the battery (20) in both directions.

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