CN210608651U - Charging device, multi-battery charging system and charging cabinet - Google Patents
Charging device, multi-battery charging system and charging cabinet Download PDFInfo
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- CN210608651U CN210608651U CN201921911126.9U CN201921911126U CN210608651U CN 210608651 U CN210608651 U CN 210608651U CN 201921911126 U CN201921911126 U CN 201921911126U CN 210608651 U CN210608651 U CN 210608651U
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Abstract
The application provides a charging device, a multi-battery charging system and a charging cabinet. The method comprises the following steps: the charging system comprises an alternating current/direct current conversion circuit, a processor, a plurality of direct current/direct current charging circuits, a plurality of microcontrollers and a charging management device. The alternating current/direct current conversion circuit is used for being electrically connected with an alternating current power supply. The processor is electrically connected with the alternating current/direct current conversion circuit. Each direct current/direct current charging circuit is electrically connected with the alternating current/direct current conversion circuit. The direct current/direct current charging circuit is used for electrically connecting a battery pack to be charged. Each microcontroller is electrically connected with one direct current/direct current charging circuit. And the charging management device adjusts the output power of the output end of the direct current/direct current charging circuit through each microcontroller. This application can improve charging device's charge efficiency, reduces the heat loss, improves the circulation rate of battery.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a charging device, a multi-battery charging system and a charging cabinet.
Background
Currently, battery charging power sources are widely used in battery charging situations or devices, such as electric bicycle chargers. Most of the charging power supplies on the market currently can only charge a single battery, and in order to charge a group of batteries simultaneously, a plurality of independent charging power supplies are combined to be used (such as a charging cabinet).
The device for charging multiple batteries simultaneously combines a single controllable or uncontrollable charging power supply, controls the charging power supply through a relay or a communication interface, then directly connects the charging power supply in parallel to an alternating current 220V power supply, and converts 220V to a DC (direct current) charging voltage when in use, thereby charging the batteries.
The device for charging multiple batteries simultaneously has the disadvantages of low charging efficiency, large heat loss and low battery turnover rate due to the use of a single charging power supply.
SUMMERY OF THE UTILITY MODEL
Accordingly, it is desirable to provide a charging device, a multi-battery charging system and a charging cabinet, which can solve the problems of low charging efficiency, large heat loss and low battery current transfer rate of the conventional multi-battery simultaneous charging device due to the use of a single charging power supply.
A charging device, comprising:
the input end of the alternating current/direct current conversion circuit is used for being electrically connected with an alternating current power supply;
the processor is electrically connected with the alternating current/direct current conversion circuit;
the input end of each direct current/direct current charging circuit is electrically connected with the output end of the alternating current/direct current conversion circuit, and the output end of each direct current/direct current charging circuit is used for electrically connecting a battery pack to be charged;
a plurality of microcontrollers, each microcontroller electrically connected to one of the DC/DC charging circuits; and
and the charging management device is electrically connected with the processor and the plurality of microcontrollers respectively.
In one embodiment, the dc/dc charging circuit includes:
the input end of the direct current/direct current switch circuit is electrically connected with the output end of the alternating current/direct current conversion circuit, and the output end of the direct current/direct current switch circuit is electrically connected with the battery pack to be charged;
the input end of the voltage/current feedback circuit is electrically connected with the output end of the direct current/direct current switch circuit, and the output end of the voltage/current feedback circuit is electrically connected with the microcontroller and is used for collecting the second voltage and the second current output by the output end of the direct current/direct current switch circuit; and
and a first input end of the pulse width modulation control circuit is electrically connected with an output end of the voltage/current feedback circuit, a second input end of the pulse width modulation control circuit is electrically connected with the microcontroller, and an output end of the pulse width modulation control circuit is electrically connected with the direct current/direct current switch circuit.
In one embodiment, the dc/dc charging circuit further includes:
and the input end of the overvoltage/overcurrent protection circuit is electrically connected with the output end of the direct current/direct current switch circuit, and the output end of the overvoltage/overcurrent protection circuit is respectively electrically connected with the third input end of the pulse width modulation control circuit and the microcontroller.
In one embodiment, the dc/dc charging circuit further includes:
and the input end of the battery protection circuit is electrically connected with the battery pack, and the output end of the battery protection circuit is respectively electrically connected with the fourth input end of the pulse width modulation control circuit and the microcontroller, and is used for acquiring the electric quantity information of the battery pack and determining whether the battery pack is charged completely.
In one embodiment, the charging management device is electrically connected with the processor and the plurality of microcontrollers respectively through a communication bus.
A multi-cell charging system comprising: the charging device according to any one of the above embodiments, wherein the charging device is configured to charge a plurality of battery packs to be charged simultaneously.
In one embodiment, a battery management system is arranged in each battery pack;
the battery management systems are all electrically connected with the charging management device, the charging management device obtains battery parameters of the battery pack through the battery management systems, and the battery parameters at least comprise one of battery material information, discharging cut-off voltage, charging cut-off voltage, maximum constant current charging current, constant current and constant voltage turning points and charging ending current.
In one embodiment, a battery management system is arranged in each battery pack;
the microcontroller is electrically connected with the battery management system and corresponds to the battery management system one by one, and the microcontroller acquires battery parameters of the battery pack through the battery management system, wherein the battery parameters at least comprise one of battery material information, discharge cutoff voltage, charge cutoff voltage, maximum constant-current charging current, constant-current and constant-voltage turning points and charging finishing current.
A charging cabinet, comprising:
the charging device according to any one of the above embodiments, wherein the charging device is configured to charge a plurality of battery packs to be charged simultaneously; and
and the main controller is electrically connected with the charging management device.
In one embodiment, the charging cabinet further comprises:
and the standby battery is electrically connected with the main controller.
Compared with the prior art, the charging device, the multi-battery charging system and the charging cabinet convert alternating current input by the alternating current power supply into direct current through the alternating current/direct current conversion circuit, and the direct current is converted into direct current voltage capable of charging a battery pack to be charged by matching with the direct current/direct current charging circuits. Meanwhile, the processor, the plurality of microcontrollers and the charging management device are matched, and the charging management device is used for adjusting the output power of the output end of the direct current/direct current charging circuit through each microcontroller, so that the charging efficiency of the charging device is improved, the heat loss is reduced, and the transfer rate of the battery is improved.
Drawings
Fig. 1 is a schematic block circuit diagram of a charging device according to an embodiment of the present disclosure;
fig. 2 is a circuit diagram of an ac/dc conversion circuit according to an embodiment of the present application;
fig. 3 is a circuit block diagram of an ac/dc conversion circuit according to an embodiment of the present application;
fig. 4 is a circuit diagram of a dc/dc charging circuit according to an embodiment of the present disclosure;
fig. 5 is a circuit block diagram of a dc/dc charging circuit according to an embodiment of the present disclosure;
fig. 6 is a schematic circuit structure diagram of a charging device according to an embodiment of the present disclosure;
FIG. 7 is a schematic circuit diagram of a multi-cell charging system according to an embodiment of the present application;
FIG. 8 is a schematic circuit diagram of a multi-cell charging system according to another embodiment of the present application;
fig. 9 is a schematic block circuit diagram of a charging cabinet according to an embodiment of the present application.
10 charging device
100 AC/DC conversion circuit
101 ac power supply
20 multi-cell charging system
200 processor
30 charging cabinet
31 a master controller.
32 spare battery
300 DC/DC charging circuit
301 battery pack
302 battery management system
310 DC/DC switch circuit
320 voltage/current feedback circuit
330 pulse width modulation control circuit
340 overvoltage/overcurrent protection circuit
350 battery protection circuit
360 input filter circuit
370 output filter circuit
400 microcontroller
401 charging module
500 charging management device
501 communication bus
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present application provides a charging device 10, including: the charging management device comprises an alternating current/direct current conversion circuit 100, a processor 200, a plurality of direct current/direct current charging circuits 300, a plurality of microcontrollers 400 and a charging management device 500. The input end of the ac/dc conversion circuit 100 is electrically connected to an ac power source 101. The processor 200 is electrically connected to the ac/dc conversion circuit 100. The input terminal of each dc/dc charging circuit 300 is electrically connected to the output terminal of the ac/dc converting circuit 100. The output terminal of each dc/dc charging circuit 300 is used to electrically connect the battery pack 301 to be charged. Each of the microcontrollers 400 is electrically connected to one of the dc/dc charging circuits 300. The charging management device 500 is electrically connected to the processor 200 and the plurality of microcontrollers 400, respectively.
It is understood that the specific circuit structure of the ac/dc conversion circuit 100 is not limited as long as the ac/dc conversion circuit has a function of converting ac power input from the ac power supply 101 into dc power. In one embodiment, the ac/dc conversion circuit 100 may be formed by an ac/dc converter. Specifically, the ac power (220V) input by the ac power source 101 may be converted into a dc voltage higher than that required by the battery pack 301 by the ac/dc converter. In one embodiment, the ac/dc converter circuit 100 may also employ a conventional ac/dc converter circuit, as shown in fig. 2.
In one embodiment, the ac/dc conversion circuit 100 may also be constructed by a surge protection circuit, an input overvoltage/undervoltage protection circuit, an overcurrent protection circuit, an inrush current suppression circuit, a rectification and filtering circuit, a power factor correction circuit, a high-frequency switching circuit, an isolation transformer, an output rectification and filtering circuit, and the like (as shown in fig. 3). In one embodiment, the input power of the ac/dc conversion circuit 100 can be controlled within 3000W by using the above-mentioned structure, so as to improve the safety of use.
In one embodiment, the processor 200 may employ any one of a MCU, a DSP (Digital Signal Processing), and a CPU. The processor 200 may obtain the ac voltage, the ac current, and the frequency input from the ac power source 101 to the ac/dc conversion circuit 100, and obtain various power parameters such as the first voltage and the first current output from the output terminal of the ac/dc conversion circuit 100, so as to measure and control the real-time power of the ac/dc conversion circuit 100, thereby implementing digitization of the ac/dc conversion circuit 100 and implementing intelligent control.
It is understood that the specific circuit structure of the dc/dc charging circuit 300 is not limited, as long as the dc/dc conversion circuit 100 converts the dc power output by the battery pack 301 to charge the battery pack. In one embodiment, the dc/dc charging circuit 300 may be formed by a dc/dc switching power supply, and the specific circuit is shown in fig. 4. In one embodiment, the dc/dc charging circuit 300 may also be composed of a dc/dc switching circuit 310, a voltage/current feedback circuit 320, and a pulse width modulation control circuit 330 (as shown in fig. 5).
Specifically, an input terminal of the dc/dc switch circuit 310 is electrically connected to an output terminal of the ac/dc conversion circuit 100. The output terminal of the dc/dc switching circuit 310 is electrically connected to the battery pack 301 to be charged. The input terminal of the voltage/current feedback circuit 320 is electrically connected to the output terminal of the dc/dc switch circuit 310 and the microcontroller 400, respectively. The voltage/current feedback circuit 320 is configured to collect the second voltage and the second current output by the output terminal of the dc/dc switch circuit 310.
A first input terminal of the pwm control circuit 330 is electrically connected to an output terminal of the voltage/current feedback circuit 320. A second input of the pwm control circuit 330 is electrically connected to the microcontroller 400. The output terminal of the pwm control circuit 330 is electrically connected to the dc/dc switch circuit 310.
In one embodiment, the dc/dc switching circuit 310 may be a MOS transistor integrated. In one embodiment, the voltage/current feedback circuit 320 may be a conventional feedback circuit, which is not specifically illustrated herein. In one embodiment, the Pulse width modulation control circuit 330 may employ a PWM (Pulse width modulation) controller.
In one embodiment, the second voltage and the second current are collected by the voltage/current feedback circuit 320 and fed back to the microcontroller 400. The microcontroller 400 sends the acquired second voltage and second current to the charging management device 500. Accordingly, the charging management device 500 adjusts the output power of the output terminal of the dc/dc charging circuit 300 through the microcontroller 400 based on the ac voltage, the ac current, the frequency, the first voltage, the first current, the second voltage, and the second current, thereby realizing charging of a greater number of battery packs 301 and maximizing the charging efficiency. In one embodiment, the charging Management device 500 may be a PMIC (Power Management IC).
In one embodiment, the microcontroller 400 can adjust the output power of the output of the dc/dc charging circuit 300 via the pwm control circuit 330. Specifically, the microcontroller 400 can adjust the setting parameter of the pwm control circuit 330, that is, adjust the output pulse of the pwm control circuit 330, so that the pwm control circuit 330 can adjust the output power of the output terminal of the dc/dc charging circuit 300.
In one embodiment, the microcontroller 400(MCU) may also be replaced with a DSP. In one embodiment, the number of the microcontrollers 400 and the number of the dc/dc charging circuits 300 are the same, and the microcontrollers 400 and the dc/dc charging circuits 300 correspond one to one.
In one embodiment, a second voltage and a second current at the output terminal of the dc/dc charging circuit 300 can be obtained by the microcontroller 400 in real time, and it is determined whether the second voltage and the second current are the same as the set values sent by the charging management device 500; if the voltage and the current are not the same, the setting parameter of the pwm control circuit 330 may be adjusted by the microcontroller 400, that is, the output pulse of the pwm control circuit 330 is adjusted, so that the voltage and the current output by the output terminal of the dc/dc charging circuit 300 are further adjusted by the pwm control circuit 330, and the purpose of adjusting the output power of the output terminal of the dc/dc charging circuit 300 is further achieved. In one embodiment, the microcontroller 400 may also be used to control the start-up of the dc/dc charging circuit 300.
In one embodiment, the microcontroller 400 may be integrated with the dc/dc charging circuit 300 to form a charging module 401 (shown in fig. 6). Thereby charging the battery pack 301 through the charging module 401.
In one embodiment, the ac voltage, the ac current, the frequency, the first voltage, the first current, the second voltage, and the second current may be obtained by the charging management device 500, and the output power at the output terminal of the dc/dc charging circuit 300 may be adjusted by each of the microcontrollers 400 based on the ac voltage, the ac current, the frequency, the first voltage, the first current, the second voltage, and the second current.
In one embodiment, the specific structure of the charging management device 500 is not limited as long as it has a function of adjusting the output power of the output terminal of the dc/dc charging circuit 300 by each of the microcontrollers 400 based on the ac voltage, the ac current, the frequency, the first voltage, the first current, the second voltage, and the second current. In one embodiment, the charging management device 500 may be a Central Processing Unit (CPU). In one embodiment, the charging management device 500 may also be a single chip. In one embodiment, the charging Management device 500 may also be a PMIC (Power Management IC).
In one embodiment, the charging management device 500 may be electrically connected to the processor 200 and the plurality of microcontrollers 400 through a communication bus 501. In one embodiment, the communication BUS 501 may be a PM-BUS, RS485, CAN, RS232, or the like BUS. In one embodiment, "/" in the ac/dc conversion circuit 100 and the dc/dc charging circuit 300 means: conversion or transformation, and not in the sense of an "or".
In one embodiment, after obtaining the power parameters of the ac voltage, the ac current, the frequency, the first voltage, and the first current, the processor 200 may determine, according to a preset algorithm, a first power output by the output terminal of the ac/dc conversion circuit 100 and a total power input by the ac power source 101 based on the ac voltage, the ac current, the frequency, the first voltage, and the first current. And transmits the determined first power and the total power to the charge management device 500 through the communication bus 501. In one embodiment, the predetermined algorithm may be calculated using conventional power calculation.
After acquiring the first power and the total power, the charging management device 500 may adjust the output power of the output terminal of the dc/dc charging circuit 300 based on the second voltage and the second current acquired by the microcontroller 400. Specifically, the charging management device 500 may adjust the output power of the output terminal of the dc/dc charging circuit 300 corresponding to each microcontroller 400 through each microcontroller 400, so as to improve the charging efficiency of the charging device 10 and reduce the heat loss.
In this embodiment, the ac/dc conversion circuit 100 converts the ac power input by the ac power supply 101 into dc power, and the dc power is converted into dc voltage capable of charging the battery pack 301 to be charged by cooperating with the plurality of dc/dc charging circuits 300. Meanwhile, the processor 200, the plurality of microcontrollers 400 and the charging management device 500 are matched, and the charging management device 500 is used for adjusting the output power of the output end of the direct current/direct current charging circuit 300 through each microcontroller, so that the charging efficiency of the charging device 10 can be improved, and the heat loss is reduced.
In one embodiment, the dc/dc charging circuit 300 further comprises: an over-voltage/over-current protection circuit 340. The input terminal of the over-voltage/over-current protection circuit 340 is electrically connected to the output terminal of the dc/dc switch circuit 310. The output terminal of the over-voltage/over-current protection circuit 340 is electrically connected to the third input terminal of the pwm control circuit 330 and the microcontroller 400, respectively. The over-voltage/over-current protection circuit 340 may be configured to determine whether the second voltage and/or the second current exceeds a predetermined threshold to provide over-voltage/over-current protection. In one embodiment, the over-voltage/over-current protection circuit 340 can be a conventional circuit with over-voltage/over-current protection function.
The overvoltage/overcurrent protection circuit 340 determines whether the second voltage and/or the second current exceeds a preset threshold, and if the second voltage and/or the second current exceeds the preset threshold, the microcontroller 400 controls the dc/dc switch circuit 310 to turn off based on the pwm control circuit 330, so as to improve overvoltage/overcurrent protection and prevent the battery pack 301 from being damaged.
In one embodiment, the dc/dc charging circuit 300 further comprises: battery protection circuit 350. The input terminal of the battery protection circuit 350 is electrically connected to the battery pack 301. The output terminal of the battery protection circuit 350 is electrically connected to the fourth input terminal of the pwm control circuit 330 and the microcontroller 400, respectively. The battery protection circuit 350 is configured to obtain the power information of the battery pack 301, and determine whether the battery pack 301 is completely charged. In one embodiment, the battery protection circuit 350 may be a conventional circuit with a charge monitoring function. The battery protection circuit 350 may monitor the power information of the battery pack 301 in real time and determine whether the charging of the battery pack 301 is completed. Meanwhile, the battery protection circuit 350 can also provide active protection whether the battery pack 301 is reversely connected or not, so as to improve the safety of use.
In one embodiment, the dc/dc charging circuit 300 further comprises: an input filter circuit 360 and an output filter circuit 370. The input filter circuit 360 is connected in series between the output terminal of the ac/dc conversion circuit and the input terminal of the dc/dc switch circuit 310. An input terminal of the output filter circuit 370 is electrically connected to an output terminal of the dc/dc switch circuit 310. The output end of the output filter circuit 370 is electrically connected to the input end of the voltage/current feedback circuit 320 and the battery pack 301, respectively. In one embodiment, the input filter circuit 360 and the output filter circuit 370 may both employ conventional circuits with filtering functions, such as: EMI filters, etc. Through the cooperation of the input filter circuit 360 and the output filter circuit 370, the dc voltage output by the dc/dc charging circuit 300 can be more stable.
Referring to fig. 7, an embodiment of the present application provides a multi-battery charging system 20, including: a charging device 10 as in any one of the previous embodiments. The charging device 10 is used for simultaneously charging a plurality of the battery packs 301 to be charged. In one embodiment, the battery pack 301 may be a lithium ion battery.
In one embodiment, the capacities of the battery packs 301 to be charged may be the same or different. When the charging device is used, the charging device 10 can charge a plurality of battery packs 301 to be charged at the same time only by electrically connecting the plurality of battery packs 301 to be charged with the charging device 10, so that the charging is simpler and more portable. In the charging process, the charging management device 500 can adjust the output power of the output terminal of the dc/dc charging circuit 300 corresponding to the microcontroller 400 through each microcontroller 400, so as to improve the charging efficiency of the charging device 10 and reduce the heat loss.
In one embodiment, a battery management system 302 is disposed within each of the battery packs 301. A plurality of the battery management systems 302 are electrically connected to the charging management apparatus 500. The charging management apparatus 500 obtains the battery parameters of the battery pack 301 through the battery management system 302. The battery parameters at least comprise one of battery material information, discharge cutoff voltage, charge cutoff voltage, maximum constant current charging current, constant current and constant voltage turning points and charge ending current.
In one embodiment, the charging management device 500 and the battery management system 302 (i.e., BMS) may be electrically connected through the communication bus 501. The charging management apparatus 500 may obtain the battery parameters of the corresponding battery pack 301 through each battery management system 302. Therefore, the charging management device 500 manages a plurality of battery packs 301, complete parameterization of charging is realized, and the battery packs 301 of different types can be charged at the same time. The battery parameters may include battery material information, discharge cutoff voltage, charge cutoff voltage, maximum constant current charge current, constant current and constant voltage turning point, charge termination current, current temperature of the battery cell, cycle life of the battery, and the like.
Referring to fig. 8, in one embodiment, a battery management system 302 is disposed in each battery pack 301. The microcontroller 400 is electrically connected to the battery management system 302, and the microcontroller 400 corresponds to the battery management system 302 one to one. The microcontroller 400 obtains the battery parameters of the battery pack 301 through the battery management system 302. The battery parameters at least comprise one of battery material information, discharge cutoff voltage, charge cutoff voltage, maximum constant current charging current, constant current and constant voltage turning points and charge ending current.
In one embodiment, the microcontroller 400 may acquire the battery parameters of the battery pack 301 through the battery management system 302, and transmit the acquired battery parameters to the charging management device 500 through the communication bus 501, so that the charging management device 500 manages a plurality of battery packs 301, and complete parameterization of charging is achieved, thereby charging different types of battery packs 301 at the same time.
Referring to fig. 9, an embodiment of the present application provides a charging cabinet 30, including: a charging device 10, a main controller 31 and a backup battery 32 according to any of the above embodiments. The charging device 10 is used for simultaneously charging a plurality of the battery packs 301 to be charged. The main controller 31 is electrically connected to the charge management device 500. The backup battery 32 is electrically connected to the main controller 31.
In one embodiment, the main controller 31 may be a CPU. The main controller 31 can monitor the states of the devices inside the charging cabinet 30 (such as the current temperature and voltage of each battery pack 301), perform logic, and so on. In one embodiment, the charging cabinet 30 may activate the backup battery 32 when the utility power is off, so as to ensure that the network facilities such as the circuit board in the charging cabinet 30 can operate, and transmit the relevant information to the background through the main controller 31. At this time, the charging device 10 does not continue to charge the battery pack 301.
In one embodiment, the charging cabinet 30 further includes a cabinet body, and the plurality of battery packs 301 to be charged, the charging device 10, the main controller 31, and the backup battery 32 may be disposed in the cabinet body. The cabinet protects the charging device 10 and the main controller 31 from damage.
To sum up, this application passes through exchange/direct current converting circuit 100 will the alternating current of alternating current power supply 101 input converts the direct current into, and with a plurality of direct current/direct current charging circuit 300 cooperates, will direct current conversion becomes the direct current voltage that can charge for waiting to charge battery package 301. Meanwhile, through the cooperation of the processor 200, the plurality of microcontrollers 400 and the charging management device 500, the processor 200 is used for acquiring the alternating current voltage, the alternating current, the frequency, the first voltage and the first current, and the plurality of microcontrollers 400 are used for acquiring the second voltage and the second current at the output end of each direct current/direct current charging circuit 300 respectively, so that the charging management device 500 adjusts the output power at the output end of the direct current/direct current charging circuit 300 through each microcontroller based on the acquired parameters, the charging efficiency of the charging device 10 can be improved, the heat loss is reduced, and the current conversion rate of the battery is improved.
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 application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A charging device, comprising:
the alternating current/direct current conversion circuit (100), wherein the input end of the alternating current/direct current conversion circuit (100) is used for being electrically connected with an alternating current power supply (101);
a processor (200) electrically connected to the AC/DC conversion circuit (100);
a plurality of direct current/direct current charging circuits (300), wherein the input end of each direct current/direct current charging circuit (300) is electrically connected with the output end of the alternating current/direct current conversion circuit (100), and the output end of each direct current/direct current charging circuit (300) is used for electrically connecting a battery pack (301) to be charged;
a plurality of microcontrollers (400), each microcontroller (400) electrically connected to one of said DC/DC charging circuits (300); and
and a charging management device (500) electrically connected to the processor (200) and the plurality of microcontrollers (400), respectively.
2. A charging arrangement as claimed in claim 1, characterized in that the dc/dc charging circuit (300) comprises:
the input end of the direct current/direct current switch circuit (310) is electrically connected with the output end of the alternating current/direct current conversion circuit (100), and the output end of the direct current/direct current switch circuit (310) is electrically connected with the battery pack (301) to be charged;
a voltage/current feedback circuit (320), wherein an input end of the voltage/current feedback circuit (320) is electrically connected with an output end of the direct current/direct current switch circuit (310), and an output end of the voltage/current feedback circuit (320) is electrically connected with the microcontroller (400); and
a pulse width modulation control circuit (330), a first input end of the pulse width modulation control circuit (330) is electrically connected with an output end of the voltage/current feedback circuit (320), a second input end of the pulse width modulation control circuit (330) is electrically connected with the microcontroller (400), and an output end of the pulse width modulation control circuit (330) is electrically connected with the direct current/direct current switch circuit (310).
3. A charging arrangement as claimed in claim 2, characterized in that the dc/dc charging circuit (300) further comprises:
the input end of the overvoltage/overcurrent protection circuit (340) is electrically connected with the output end of the direct current/direct current switch circuit (310), and the output end of the overvoltage/overcurrent protection circuit (340) is electrically connected with the third input end of the pulse width modulation control circuit (330) and the microcontroller (400) respectively.
4. A charging arrangement as claimed in claim 2, characterized in that the dc/dc charging circuit (300) further comprises:
the input end of the battery protection circuit (350) is electrically connected with the battery pack (301), and the output end of the battery protection circuit (350) is electrically connected with the fourth input end of the pulse width modulation control circuit (330) and the microcontroller (400) respectively, and is used for acquiring the electric quantity information of the battery pack (301) and determining whether the charging of the battery pack (301) is completed.
5. A charging device according to any of claims 1-4, characterized in that the charging management device (500) is electrically connected to the processor (200), respectively the plurality of microcontrollers (400), via a communication bus (501).
6. A multi-cell charging system, comprising: a charging device (10) as claimed in any of claims 1 to 4, the charging device (10) being adapted to charge a plurality of the battery packs (301) to be charged simultaneously.
7. A multi-cell charging system according to claim 6, wherein a battery management system (302) is provided in each of the battery packs (301);
the battery management systems (302) are all electrically connected with the charging management device (500), the charging management device (500) acquires battery parameters of the battery pack (301) through the battery management systems (302), and the battery parameters at least comprise one of battery material information, discharge cutoff voltage, charging cutoff voltage, maximum constant-current charging current, constant-current and constant-voltage turning points and charging ending current.
8. A multi-cell charging system according to claim 6, wherein a battery management system (302) is provided in each of the battery packs (301);
the microcontroller (400) is electrically connected with the battery management system (302), the microcontroller (400) corresponds to the battery management system (302) one by one, the microcontroller (400) acquires battery parameters of the battery pack (301) through the battery management system (302), and the battery parameters at least comprise one of battery material information, discharge cutoff voltage, charge cutoff voltage, maximum constant current and charge current, constant current and constant voltage turning points and charge ending current.
9. A charging cabinet, comprising:
a charging device (10) according to any of claims 1-4, said charging device (10) being adapted to charge a plurality of said battery packs (301) to be charged simultaneously; and
and a main controller (31) electrically connected to the charging management device (500).
10. The charging cabinet of claim 9, further comprising:
a backup battery (32) electrically connected to the main controller (31).
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| CN201921911126.9U CN210608651U (en) | 2019-11-07 | 2019-11-07 | Charging device, multi-battery charging system and charging cabinet |
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| CN201921911126.9U CN210608651U (en) | 2019-11-07 | 2019-11-07 | Charging device, multi-battery charging system and charging cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389346A (en) * | 2022-03-22 | 2022-04-22 | 深圳市菲尼基科技有限公司 | Multi-path power supply device of battery replacing cabinet |
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2019
- 2019-11-07 CN CN201921911126.9U patent/CN210608651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389346A (en) * | 2022-03-22 | 2022-04-22 | 深圳市菲尼基科技有限公司 | Multi-path power supply device of battery replacing cabinet |
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Effective date of registration: 20200706 Address after: 352100 Room 403, No.1-1, North Fourth lane, Guxi village, Chengnan Town, Jiaocheng District, Ningde City, Fujian Province Patentee after: Fujian Ningde Zhixiang infinite Technology Co.,Ltd. Address before: 201800 room 093, zone a, floor 3, building 11, No. 255, Anxiao Road, Anting Town, Jiading District, Shanghai Patentee before: Shanghai Yujiu e-commerce Co.,Ltd. |