CN114447452A - Battery activation device - Google Patents

Battery activation device Download PDF

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Publication number
CN114447452A
CN114447452A CN202111675528.5A CN202111675528A CN114447452A CN 114447452 A CN114447452 A CN 114447452A CN 202111675528 A CN202111675528 A CN 202111675528A CN 114447452 A CN114447452 A CN 114447452A
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China
Prior art keywords
battery
module
voltage
discharge
reference voltage
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Granted
Application number
CN202111675528.5A
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Chinese (zh)
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CN114447452B (en
Inventor
李嘉
赵法强
刘旭君
王艺桦
陈志豪
石展华
葛世锋
陈文�
凌伟
柳立伟
郑义
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Shenzhen Power Supply Bureau Co Ltd
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Shenzhen Power Supply Bureau Co Ltd
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Priority to CN202111675528.5A priority Critical patent/CN114447452B/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4242—Regeneration of electrolyte or reactants
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention relates to a battery activation device. The battery activation device includes: a discharging module for discharging the battery; the detection module is connected with the output end of the battery and used for detecting a first battery voltage and comparing whether the first battery voltage is greater than a reference voltage or not; the control module is connected with the detection module and used for outputting a control signal when the first battery voltage is greater than the reference voltage, wherein the control signal is used for controlling the discharging module to discharge the battery for a preset time length, and the control module is also used for controlling the battery to be connected into the charging module after the discharging module discharges the battery for the preset time length. The battery activating device can maintain and maintain the battery more reasonably, thereby prolonging the service life of the battery and ensuring that the battery can supply power for the power distribution equipment normally in time.

Description

Battery activation device
Technical Field
The invention relates to the technical field of power equipment, in particular to a battery activation device.
Background
Along with the application and popularization of a power distribution network in an electric power system, terminals such as a ring main unit and a switch cabinet are matched to realize that terminals of a distribution automation station are more and more put into use, and a distribution automation DTU is used for monitoring the running conditions of equipment such as the ring main unit and the switch cabinet and is responsible for communicating with a monitoring center. Emergency standby lead-acid batteries are arranged in the DTU, the lead-acid batteries are usually in a floating charge state at ordinary times, long-time trickle charge can cause the performance of the batteries to be reduced, meanwhile, the working environment of the lead-acid batteries is very severe, the temperature in summer exceeds the temperature (50 ℃) required by the battery technology, and the possibility of the failure of the standby batteries is very high under the influence of various factors. Therefore, under the external power failure state, the standby battery can not play an emergency role, and great inconvenience is brought to the operation of the power distribution network. It is therefore necessary to check the state of the backup battery periodically to make an emergency in case of an external power outage.
The method that the staff goes to investigate, change the stand-by battery one by one is not only work load long time consuming, and it is untimely to change the stand-by battery moreover, leads to the stand-by battery can not be emergent in time, does not set for the length of time that the battery discharges among the device that activates the battery among the prior art, and this can lead to the battery to be too low, the battery state is not good after discharging, and then causes the stand-by battery can not be when emergent for distribution equipment normal power supply.
Disclosure of Invention
In view of the above, it is necessary to provide a battery activating device for reasonably maintaining and maintaining the battery.
A battery activation device comprising:
a discharging module for discharging the battery;
the detection module is connected with the output end of the battery and used for detecting a first battery voltage and comparing whether the first battery voltage is greater than a reference voltage or not;
the control module is respectively connected with the output end of the battery and the detection module and used for outputting a control signal when the first battery voltage is greater than the reference voltage, the control signal is used for controlling the discharging module to discharge the battery for a preset time length and controlling the battery to be connected into the charging module after the discharging module discharges the battery for the preset time length.
In one embodiment, the detection module comprises:
the first battery voltage detection unit is connected with the output end of the battery and used for detecting the first battery voltage;
the reference voltage unit is connected with the output end of the battery and converts the first battery voltage into reference voltage;
and the first comparison unit is respectively connected with the first battery voltage detection unit and the reference voltage unit and is used for comparing the first battery voltage with the reference voltage and outputting a comparison result.
In one embodiment, the control module comprises:
the control unit is used for outputting a control signal for controlling the discharging module to discharge the battery for a preset time;
and the first switch unit is respectively connected with the output end of the battery, the output end of the detection module and the input end of the control unit, and is used for switching on the battery and the control unit when the first battery voltage is greater than the reference voltage so as to enable the battery to supply power for the control unit, and is also used for switching off when the first battery voltage is less than the reference voltage.
In one embodiment, the first switching unit includes:
the grid electrode of the first MOS tube is connected with the output end of the detection module, the source electrode of the first MOS tube is connected with the output end of the battery, and the drain electrode of the first MOS tube is connected with the input end of the control unit and used for controlling the battery to supply power or cut off power to the control unit.
In one embodiment, the control unit includes:
the timing circuit is connected with the first switch unit and used for outputting a driving signal with preset duration when the first switch unit is switched on;
and the selection circuit is connected with the timing circuit and the discharge module, and is used for gating the discharge module and the battery under the action of the driving signal so as to enable the discharge module to discharge the battery for a preset time, and is also used for gating the charge module and the battery when the driving signal is not received so as to enable the charge module to charge the battery.
In one embodiment, the selection circuit comprises a transistor and a relay:
the base electrode of the triode is connected with the output end of the timing circuit, the collector electrode of the triode is connected with the first end of the relay coil, and the emitter electrode of the triode is connected with the output end of the battery through the first switch unit and used for controlling the selection of the relay;
and the first end of a coil of the relay is connected with the collector of the triode, and the second end of the coil of the relay is grounded and is used for controlling the conduction of the discharging module and controlling the discharging module to discharge the battery within preset time according to the driving signal output by the output end of the timing circuit.
In one embodiment, the method further comprises the following steps:
and the discharge detection module is connected with the output end of the battery and used for detecting the second battery voltage when the discharge module discharges the battery for a preset time length and judging whether the state of the battery is qualified or not when the battery is discharged according to the second battery voltage and the reference voltage.
In one embodiment, the discharge detection module includes:
the second battery voltage detection unit is connected with the output end of the battery and used for detecting the second battery voltage;
and the second comparison unit is respectively connected with the second battery voltage detection unit and the reference voltage unit and used for judging whether the state of the battery is qualified or not when the battery is discharged according to the second battery voltage and the reference voltage.
In one embodiment, the method further comprises the following steps:
and the alarm module is connected with the discharge detection module and used for giving an alarm when the state of the battery during discharge is unqualified.
In one embodiment, the method further comprises the following steps:
and the discharge indication module is connected with the discharge module and used for indicating when the discharge module is conducted.
The battery activation device detects the first battery voltage through the detection module and compares the first battery voltage with the reference voltage. The control module outputs a control signal when the first battery voltage is greater than the reference voltage, the control signal is used for controlling the discharging module to discharge the battery for a preset time length, and the control module is also used for controlling the battery to be connected to the charging module after the discharging module discharges the battery for the preset time length. Because control module can control the time that the module of discharging carries out the discharge to the battery, consequently can avoid the battery to lead to the battery voltage to hang down excessively, phenomenon such as battery state is not good because of the discharge time is too for a long time, maintains the battery more rationally to the life-span of extension battery, guarantee that the battery can in time be for distribution equipment normal power supply.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a battery activation apparatus according to an embodiment;
FIG. 2 is a schematic diagram of a detection module of the battery activation apparatus according to an embodiment;
FIG. 3 is a schematic structural diagram of a detection module of the battery activation apparatus according to another embodiment;
FIG. 4 is a schematic diagram of a control module of the battery activation apparatus according to an embodiment;
FIG. 5 is a schematic diagram of the control module and the discharging module of another embodiment of the battery activation apparatus;
fig. 6 is a schematic structural diagram of a discharge detection module and an alarm module of the battery activation device in another embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of the present application. The first resistance and the second resistance are both resistances, but they are not the same resistance.
It is to be understood that "connection" in the following embodiments is to be understood as "electrical connection", "communication connection", and the like if the connected circuits, modules, units, and the like have communication of electrical signals or data with each other.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," or "having," and the like, specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
As shown in fig. 1, a battery activation device 10 of one embodiment includes a discharge module 100, a detection module 200, and a control module 300. The discharging module 100 is used for discharging the battery; the detection module 200 is connected to the output end of the battery, and is configured to detect a first battery voltage and compare whether the first battery voltage is greater than a reference voltage; the control module 300 is respectively connected to the detection module 200, the discharging module 100 and the charging module, and is configured to output a control signal when the first battery voltage is greater than the reference voltage, where the control signal is used to control the discharging module 100 to discharge the battery for a preset time, and is also used to control the battery to access the charging module after the discharging module 100 discharges the battery for the preset time.
The first battery voltage is the voltage of the battery in any state, and comprises the voltage of the battery during charging and discharging. The reference voltage is a set voltage standard value, and may be set according to battery parameters and the like, for example, the reference voltage of the battery may be 80% of the rated voltage of the battery. The preset time period is the time for the discharging module 100 to discharge the battery, and can be set according to actual conditions. The control signal is a signal output for a preset time period, and includes a high level or a low level.
In one embodiment, the detection module 200 detects the first battery voltage and compares the first battery voltage with the reference voltage to determine the real-time voltage status of the battery, and then determines whether the battery needs to be discharged according to the comparison result. For example, the set reference voltage is 9V, the first battery voltage detected by the detection module 200 is 9.6V, and it can be seen that the first battery voltage is greater than the reference voltage, so the control module 300 outputs the control signal to control the discharge module 100 to discharge the battery for a preset time period, where the preset time period is, for example, 5s, 10s, and the like. The discharge module 100 includes a discharge resistor.
As shown in fig. 2, the detection module 200 in the battery activation device 10 according to an embodiment includes: a first battery voltage detection unit 202, a reference voltage unit 204, and a first comparison unit 206. The first battery voltage detection unit 202 is connected to an output end of the battery, and is configured to detect a first battery voltage; the reference voltage unit 204 is connected to the output end of the battery, and is used for converting the battery voltage into a reference voltage, namely setting the reference voltage of the battery; the first comparing unit 206 is connected to the first battery voltage detecting unit 202 and the reference voltage unit 204, respectively, and is configured to compare the first battery voltage with the reference voltage and output a comparison result.
As shown in fig. 3, in one embodiment, the first voltage detecting unit 202 includes a resistor R1 and a resistor regulator VR1 connected in series in a circuit, and the resistor R1 and the resistor regulator VR1 connected in series are used to detect the battery voltage. Wherein a first terminal of the resistor R1 is connected to the output terminal of the battery, and a second terminal is connected to a first terminal of the resistor regulator VR 1; the second terminal of the resistance regulator VR1 is grounded, and the third terminal is connected to the first comparing unit 206.
The reference voltage unit 204 comprises a resistor R2, a resistor R3 and a voltage regulator tube D2, wherein a first end of the resistor R2 is connected to the output end of the battery, a first end of the resistor R3 is connected to a second end of the resistor R2 and the anode of the voltage regulator tube D2, a second end of the resistor R3 is connected to the first comparing unit 206, and the cathode of the voltage regulator tube D2 is grounded. The reference voltage unit 204 may provide a preset stable voltage for reference of comparison with the first battery voltage through voltage division of the resistor R2 and the resistor R3 and voltage stabilization of the diode D2.
With continued reference to fig. 3, in one embodiment, the first comparison unit 206 comprises an LM358, which includes two independent, high-gain, internal frequency compensated dual operational amplifiers therein, suitable for use with a single power supply having a wide range of power supply voltages. The inverting input terminal 2 of the LM358 is connected to the third terminal of the resistance regulator VR1 in the first voltage detecting unit 202 for receiving the first battery voltage. The non-inverting input terminal 3 is connected to the second terminal of the resistor R3 in the reference voltage unit 204 for receiving the reference voltage. If the first battery voltage at the inverting input terminal 3 of the LM358 is greater than the reference voltage, the output port 1 of the LM358 will output a low level, which reflects that the battery needs to be discharged. In this embodiment, the LM358 can accurately and timely compare the first battery voltage with the reference voltage, so that the battery activation device can monitor whether the battery needs to be discharged in real time.
As shown in fig. 4, the control module 300 of the battery activation apparatus 10 in one embodiment includes a control unit 402 and a first switching unit 404. The output end of the control unit 402 is configured to output a control signal for controlling the discharging module 100 to discharge the battery for a preset time. The first switch unit 404 is respectively connected to the output terminal of the battery, the output terminal of the detection module 200, and the input terminal of the control unit 402, and is configured to turn on the battery and the control unit 402 when the first battery voltage is greater than the reference voltage, so that the battery supplies power to the control unit 402, and is further configured to turn off when the first battery voltage is less than the reference voltage.
Specifically, the result output by the detection module 200 is used to control the on/off of the first switch unit 404, if the first battery voltage is greater than the reference voltage, the first switch unit 404 is turned on, and at this time, the battery provides the working voltage for the control unit 402; if the first battery voltage is less than the reference voltage, the first switch unit 404 is turned off, and at this time, the battery does not need to provide the operating voltage for the control unit 402, i.e., the control module 300 is in the power-off state. The present embodiment does not limit the specific structure of the first switch unit 404, as long as the function thereof can be achieved.
Referring to fig. 3, in an embodiment, the first switch unit 404 of the battery activation apparatus includes a first MOS transistor U5, a gate of the first MOS transistor U5 is connected to the output port 1 of the LM358 in the detection module 200, a source is connected to the output terminal of the battery through a resistor R6, and a drain is connected to the input terminal of the control unit 402, for controlling the battery to supply or cut off power to the control unit.
The first MOS transistor U5 includes a P-type MOS transistor. When the first battery voltage is greater than the reference voltage, the output port 1 of the LM358 in the detection module 200 outputs a low level signal, which turns on the first MOS transistor U5, and at this time, the battery provides a working voltage for the control unit 402, and the resistor R6 is used for voltage division protection of the first MOS transistor Q1 and preventing current from flowing backwards to the output port 1 of the LM 358. When the first battery voltage is lower than the reference voltage, the output port 1 of the LM358 in the detection module 200 outputs a high level signal, which turns off the first MOS transistor U5, and at this time, the battery does not need to provide the operating voltage for the control unit 402, i.e. the control module 300 is in the power-off state. The resistor R6 and the output terminal of the detection module 200 may be connected to the resistor R10 as a pull-up resistor for stabilizing the voltage input to the first MOS transistor U5.
In other embodiments, the first MOS transistor U5 further includes an N-type MOS transistor. When the first battery voltage is greater than the reference voltage, the output port 1 of the LM358 in the detection module 200 outputs a low level signal, which turns off the first MOS transistor U5, and at this time, the battery does not need to provide the operating voltage for the control unit 402; when the first battery voltage is less than the reference voltage, the output port 1 of the LM358 in the detection module 200 outputs a high level signal, and the high level signal turns on the first MOS transistor U5, at this time, the battery provides the operating voltage for the control unit 402.
As shown in fig. 5, in one embodiment, the control unit 402 of the battery activation device includes a timing circuit 502 and a selection circuit 504. The timing circuit 502 is connected to the first switch unit 404, and is configured to output a driving signal with a preset duration when the first switch unit 404 is turned on. The selection circuit 504 is connected to the timing circuit 502 and the discharging module 100, and is configured to gate the discharging module 100 and the battery under the action of the driving signal, so that the discharging module 100 discharges the battery for a preset time period, and further to gate the charging module and the battery when the driving signal is not received, so that the charging module charges the battery. The present embodiment does not limit the specific structure of the timing circuit, as long as the function thereof can be realized.
In one embodiment, the timing circuit 502 includes an XR-2242 timing chip, which has a wide and accurate timing range, and continuously outputs the driving signal during the timing period until the timing period is over, and immediately turns over, so that the accurate timing can be achieved. The timing time is, for example, T ═ RC (8PIN), T ═ 2RC (8PIN), T ═ 128RC (3 PIN). The discharging module 100 discharges the battery for a preset time period, such as 5s, 10s, etc. When the first switch unit 404 is turned on, the timing circuit and the selection circuit provide the operating voltage from the battery, and at this time, the timing circuit continuously outputs the driving signal within a preset time (e.g., 5s) so that the selection circuit selects the discharging module 100 and the battery, and the discharging module 100 discharges the battery for the preset time (e.g., 5 s). When the first switch unit 404 is turned off, the timing circuit and the selection circuit are in a power-off state, so that the timing circuit does not output a driving signal, and the selection circuit gates the charging module and the battery, so that the charging module charges the battery.
With continued reference to fig. 5, the selection circuit 504 of the battery activation device of an embodiment includes a transistor Q1 and a relay RL 2. The base B of the transistor Q1 is connected to the output of the timing circuit, the collector C is connected to the first end of the coil of the relay RL2, and the emitter E is connected to the output of the battery through the first switching unit 404 for controlling the selection of the relay RL 2. The first end 1 of the coil of the relay RL2 is connected to the collector C of the triode Q1, the second end 2 is grounded, the third end 3 is connected with the output end of the battery, the fourth end 4 is connected with the discharging module 100, and the 5 th end 5 is connected with the charging module. The relay RL2 is used for connecting the third terminal 3 and the fourth terminal 4 when the transistor Q1 is turned on, so that the battery output terminal and the discharging module 100 are connected to control the discharging module 100 to discharge the battery for a preset time. The relay RL2 is also used to connect the third terminal 3 and the fifth terminal 5 when the transistor Q1 is turned off, so that the battery output terminal is connected to the charging module to charge the battery. The relay RL2 can be used for timely selecting to switch on the discharging module 100 or the charging module, so that the battery can be maintained more timely, and the service life of the battery can be prolonged.
Specifically, when the first battery voltage is greater than the reference voltage, the low level signal output by the detection module 200 turns on the first switch unit 404, and at this time, the battery provides the operating voltage for the transistor Q1 and the relay RL2, the transistor Q1 receives the driving signal output by the timing circuit within the preset time period and then controls the selection of the relay RL2, and the relay RL2 gates the discharge module 100 and the battery to control the discharge module 100 to discharge the battery for the preset time period (for example, 10 s). If the first battery voltage is lower than the reference voltage, the high level signal output by the detection module 200 turns off the first switch unit 404, and at this time, the transistor T1 and the relay RL2 are in the power-off state, and the relay RL2 gates the charging module and the battery to enable the charging module to charge the battery. The method for controlling the charging or discharging of the battery according to the comparison result can ensure that the battery can be maintained and maintained more reasonably in the service life period by detecting the voltage of the first battery in real time and comparing the voltage with the reference voltage.
The battery activation device in one embodiment further includes a discharge detection module. The discharging detection module is connected with the output end of the battery and used for detecting the second battery voltage when the discharging module 100 discharges the battery for a preset time, and judging whether the state of the battery is qualified or not when the battery is discharged according to the second battery voltage and the reference voltage. Generally, the voltage of the battery during charging is higher than the reference voltage, and the voltage of the battery during discharging may be lower than the reference voltage, so the discharge detection module only needs to detect the voltage of the battery during discharging for determining the state of the battery during discharging.
With continued reference to fig. 5, the battery activation device 10 of one embodiment further includes a discharge indication module 400. A first end of the resistor R15 of the discharge indication module 400 is connected to a first end of the discharge resistor R16 of the discharge module 100, a second end of the resistor R15 is connected to a negative electrode of the D4, a positive electrode of the D4 is connected to a second end of the discharge resistor R16 of the discharge module 100, the resistor R15 is used for limiting a current flowing through the D4 to protect the D4, and the D4 is used for performing a light indication when the discharge module 100 is turned on. D4 lights up when the battery is in a discharged state, i.e., when discharge module 100 is turned on, indicating that the battery is in a discharged state, which is more convenient for viewing the real-time status of the battery. The discharge instruction module 500 is turned off when the discharge module 100 is not turned on.
As shown in fig. 6, in one embodiment, the discharge detection module in the battery activation apparatus includes a second battery voltage detection unit and a second comparison unit 602. The second battery voltage detection unit is connected with the output end of the battery and used for detecting the second battery voltage. The second comparing unit 602 is respectively connected to the second battery voltage detecting unit and the reference voltage unit 204, and is configured to determine whether the state of the battery during discharging is qualified according to the second battery voltage and the reference voltage.
And if the second battery voltage is less than the reference voltage, the state of the battery is judged to be unqualified, and if the second battery voltage is greater than the reference voltage, the state of the battery is judged to be qualified. The reference voltage can be adjusted according to actual requirements.
Referring to fig. 6, in an embodiment, the second comparing unit 602 includes an LM358, where the input of the non-inverting input terminal 6 of the LM358 is the reference voltage, the input of the inverting input terminal 6 is the second battery voltage, and if the second battery voltage is less than the reference voltage, the battery status is determined to be not qualified, and at this time, the output port 7 of the LM358 outputs a low level. If the second battery voltage is greater than the reference voltage, the battery status is determined to be qualified, and the output port 7 of the LM358 outputs a high level at this time.
With continued reference to fig. 6, the battery activation device of an embodiment further includes an alarm module 500. The alarm module 500 comprises a resistor R9 and a diode D1, wherein a first end of R9 is connected to the output end of the battery, a second end of R9 is connected to the anode of a diode D1, and the cathode of a diode D1 is connected to the output end 7 of the discharge detection module LM 358. The alarm module 500 is used for alarming when the battery is in an unqualified state during discharging, namely the output port 7 of the LM358 outputs a high level.
In other embodiments, when the battery status is not qualified, i.e. the second battery voltage is less than the reference voltage, the low level output from the output port of LM358 causes the alarm module to alarm, wherein the alarm module 500 includes a buzzer or a monitoring center connected to the discharge detection module, etc.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A battery activation device, comprising:
a discharging module for discharging the battery;
the detection module is connected with the output end of the battery and used for detecting a first battery voltage and comparing whether the first battery voltage is greater than a reference voltage or not;
the control module is connected with the detection module and used for outputting a control signal when the first battery voltage is greater than the reference voltage, wherein the control signal is used for controlling the discharging module to discharge the battery for a preset time length, and the control module is also used for controlling the battery to be connected into the charging module after the discharging module discharges the battery for the preset time length.
2. The battery activation device of claim 1, wherein the detection module comprises:
the first battery voltage detection unit is connected with the output end of the battery and used for detecting the first battery voltage;
the reference voltage unit is connected with the output end of the battery and converts the first battery voltage into reference voltage;
and the first comparison unit is respectively connected with the first battery voltage detection unit and the reference voltage unit and is used for comparing the first battery voltage with the reference voltage and outputting a comparison result.
3. The battery activation device of claim 1, wherein the control module comprises:
the control unit is used for outputting a control signal for controlling the discharging module to discharge the battery for a preset time;
and the first switch unit is respectively connected with the output end of the battery, the output end of the detection module and the input end of the control unit, and is used for switching on the battery and the control unit when the first battery voltage is greater than the reference voltage so as to enable the battery to supply power for the control unit, and is also used for switching off when the first battery voltage is less than the reference voltage.
4. The battery activation device according to claim 3, wherein the first switching unit includes:
the grid electrode of the first MOS tube is connected with the output end of the detection module, the source electrode of the first MOS tube is connected with the output end of the battery, and the drain electrode of the first MOS tube is connected with the input end of the control unit and used for controlling the battery to supply power or cut off power to the control unit.
5. The battery activation device according to claim 3, wherein the control unit includes:
the timing circuit is connected with the first switch unit and used for outputting a driving signal with preset duration when the first switch unit is switched on;
and the selection circuit is connected with the timing circuit and the discharging module, and is used for gating the discharging module and the battery under the action of the driving signal so as to enable the discharging module to discharge the battery for a preset time length, and is also used for gating the charging module and the battery when the driving signal is not received so as to enable the charging module to charge the battery.
6. The battery activation device of claim 3, wherein the selection circuit comprises a transistor and a relay:
the base electrode of the triode is connected with the output end of the timing circuit, the collector electrode of the triode is connected with the first end of the relay coil, and the emitter electrode of the triode is connected with the output end of the battery through the first switch unit and used for controlling the selection of the relay;
and the first end of a coil of the relay is connected with the collector of the triode, and the second end of the coil of the relay is grounded and is used for controlling the conduction of the discharging module and controlling the discharging module to discharge the battery within preset time according to the driving signal output by the output end of the timing circuit.
7. The battery activation device of claim 1, further comprising:
and the discharge detection module is connected with the output end of the battery and used for detecting the second battery voltage when the discharge module discharges the battery for a preset time length and judging whether the state of the battery is qualified or not when the battery is discharged according to the second battery voltage and the reference voltage.
8. The battery activation device according to claim 7, wherein the discharge detection module comprises:
the second battery voltage detection unit is connected with the output end of the battery and used for detecting the second battery voltage;
and the second comparison unit is respectively connected with the second battery voltage detection unit and the reference voltage unit and used for judging whether the state of the battery is qualified or not when the battery is discharged according to the second battery voltage and the reference voltage.
9. The battery activation device according to claim 7, further comprising:
and the alarm module is connected with the discharge detection module and used for giving an alarm when the state of the battery during discharge is unqualified.
10. The battery activation device of claim 1, further comprising:
and the discharge indication module is connected with the discharge module and used for indicating when the discharge module is conducted.
CN202111675528.5A 2021-12-31 2021-12-31 Battery activation device Active CN114447452B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015013913A1 (en) * 2013-07-31 2015-02-05 吉瑞高新科技股份有限公司 Overcurrent and overvoltage protection circuit and method for electronic cigarette
CN107069846A (en) * 2017-03-09 2017-08-18 东莞博力威电池有限公司 Correct the method and battery system of the voltage x current of battery
CN113644725A (en) * 2020-04-27 2021-11-12 深圳供电局有限公司 Storage battery charging and discharging management and protection system and direct current power supply

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015013913A1 (en) * 2013-07-31 2015-02-05 吉瑞高新科技股份有限公司 Overcurrent and overvoltage protection circuit and method for electronic cigarette
CN107069846A (en) * 2017-03-09 2017-08-18 东莞博力威电池有限公司 Correct the method and battery system of the voltage x current of battery
CN113644725A (en) * 2020-04-27 2021-11-12 深圳供电局有限公司 Storage battery charging and discharging management and protection system and direct current power supply

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