CN216819442U - Intelligent device for safely replacing battery under battery working state - Google Patents
Intelligent device for safely replacing battery under battery working state Download PDFInfo
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- CN216819442U CN216819442U CN202123148366.8U CN202123148366U CN216819442U CN 216819442 U CN216819442 U CN 216819442U CN 202123148366 U CN202123148366 U CN 202123148366U CN 216819442 U CN216819442 U CN 216819442U
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Abstract
The utility model provides an intelligent device for safely replacing batteries in a battery working state, which avoids the configuration of a large-capacity battery pack or the parallel connection of a plurality of battery packs in a power supply system, avoids the configuration of a high-power charging device in the power supply system, and greatly reduces the configuration cost of the power supply system. The safety problems of floating charge or overcharge and the like when the large-capacity battery and the parallel battery pack are used are avoided. The power utilization danger of continuously connecting the battery packs in parallel for obtaining larger capacity and longer power supply time is avoided. Meanwhile, the device adopts power electronic devices, so that the device is low in self loss, high in efficiency, good in energy-saving effect, simple in design and installation process, intelligent and convenient.
Description
Technical Field
The utility model relates to the technical field of battery power supply, in particular to an intelligent device for safely replacing a battery in a battery working state.
Background
With the development of the times, electricity becomes an indispensable part of people's lives, and when the commercial power is abnormal or in outdoor areas without commercial power, electrical equipment is still required to work normally, so that users often adopt various lithium battery, lead-acid storage battery and other battery power supplies as power supplies for obtaining more reliable power supplies. Due to objective reasons such as battery materials and manufacturing processes, the capacity of a single battery and the capacity of a battery module formed by cascading a plurality of batteries are limited, and the single battery cannot supply power to a load for a long time. In order to obtain larger capacity and longer power supply time, the direct parallel connection mode is adopted in the technical field of battery power supply to increase the battery capacity. After the parallel battery pack is used for a period of time, circulation current can be generated between the battery packs due to the fact that consistency of voltage, internal resistance and capacity of each single battery is poor, discharging faults are caused, voltage of one single battery is too high even damaged due to long-term floating charging, the whole battery pack can not normally supply power, and even safety problems of power supply and electricity utilization of batteries are caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides an intelligent device for safely replacing a battery in a battery working state.
The utility model is realized by the following technical scheme:
an intelligent device for safely replacing batteries in a battery working state comprises a battery pack #1 and a battery pack #2, wherein the output end of the battery pack #1 is connected with a first switching unit, the first switching unit is respectively connected with a first driving unit and a second switching unit, the second switching unit is respectively connected with a second driving unit and a first voltage and current detection unit, the output end of the battery pack #2 is connected with a third switching unit, the third switching unit is respectively connected with a third driving unit and a fourth switching unit, the fourth switching unit is respectively connected with a fourth driving unit and a second voltage and current detection unit, the first voltage and current detection unit and the second voltage and current detection unit are respectively connected with a power supply output end, the first driving unit, the second driving unit, the third driving unit and the fourth driving unit are respectively connected with an intelligent control unit, and the intelligent control unit is respectively connected with a multi-path power taking unit and a battery detection unit, the multichannel is got the incoming end that the unit connects group battery #1 respectively, the incoming end and the power supply output of group battery #2, and battery detecting element, external battery connect group battery # 1's incoming end and group battery # 2's incoming end respectively.
Further, the intelligent control system further comprises a heat dissipation unit, a state output unit and a safety protection unit, wherein the heat dissipation unit is connected with the intelligent control unit, the input ends of the state output unit and the safety protection unit are respectively connected with the output end of the intelligent control unit, and the output ends of the state output unit and the safety protection unit are respectively connected with an output terminal.
Further, the output end of the battery pack #1 is connected to the source electrode of the NMOS tube in the first switching unit, the drain electrode of the NMOS tube in the first switching unit is connected to the drain electrode of the NMOS tube in the second switching unit, and the source electrode of the NMOS tube in the second switching unit is connected to the first voltage/current detection unit.
Further, the output end of the battery pack #2 is connected to the source electrode of the NMOS tube in the third switching unit, the drain electrode of the NMOS tube in the third switching unit is connected to the drain electrode of the NMOS tube in the fourth switching unit, and the source electrode of the NMOS tube in the fourth switching unit is connected to the second voltage/current detection unit.
Furthermore, the input ends of the first driving unit, the second driving unit, the third driving unit and the fourth driving unit are respectively connected with the output end of the intelligent control unit, and the output end of any one of the driving units is connected with the grid electrode of the NMOS tube in the corresponding switching unit.
The device comprises a shell and a device plate, wherein the first switching unit, the first driving unit, the second switching unit, the second driving unit, the third switching unit, the third driving unit, the fourth switching unit, the intelligent control unit and the multi-path power supply unit are all arranged on the device plate, and the device plate is arranged in the shell;
still be equipped with 3 terminals on one side at the device board top, 3 terminals are connected respectively on first switching unit, third switching unit and power supply output, and 3 terminals all are located the outside of casing.
Furthermore, the shell is rectangular and consists of a top cover and a base, and the device plate is fixed on the base;
the heat dissipation unit comprises a heat dissipation fan, heat dissipation holes respectively formed in two opposite sides of the shell and mounting holes used for mounting the heat dissipation fan, and the heat dissipation fan is connected with the intelligent control unit.
The utility model has the beneficial effects that:
the intelligent device for safely replacing the battery in the working state of the battery avoids the configuration of a large-capacity battery pack or the parallel connection of a plurality of battery packs by a power supply system, avoids the configuration of a high-power charging device by the power supply system, and greatly reduces the configuration cost of the power supply system. The safety problems of floating charge or overcharge and the like when the large-capacity battery and the parallel battery pack are used are avoided. The danger of continuously connecting the battery packs in parallel for obtaining larger capacity and longer power supply time is avoided. Meanwhile, the device adopts power electronic devices, has low self loss, high efficiency, good energy-saving effect, simple design and installation process and intelligence and convenience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a first structural block diagram of an intelligent device for safely replacing a battery in a battery operating state according to the present invention;
FIG. 2 is a first flowchart illustrating an implementation of an intelligent apparatus for safely replacing a battery in a battery operating state according to the present invention;
FIG. 3 is a flowchart illustrating a second implementation of an intelligent apparatus for safely replacing a battery in a battery operating state according to the present invention;
FIG. 4 is a block diagram of an intelligent device for safely replacing a battery in a battery operating state according to the present invention;
FIG. 5 is a first structural diagram of an intelligent device for safely replacing a battery in a battery operating state according to the present invention;
FIG. 6 is a second structural diagram of an intelligent device for safely replacing a battery in a battery operating state according to the present invention;
fig. 7 is an exploded view of an intelligent device for safely replacing a battery in an operating state of the battery according to the present invention.
In the figure, a 1-top cover, a 2-battery #1 discharging NMOS switch, a 3-battery #1 charging NMOS switch, a 4-battery #2 charging NMOS switch, a 5-battery #2 discharging NMOS switch, a 6-battery #1 wiring post, a 7-load wiring post, an 8-battery #2 wiring, a 9-device mounting base, a 10-device cooling fan, an 11-multi-path power supply unit, a 12-CPLD intelligent control unit, a 13-state detection and state output port and a 14-device board.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
Referring to fig. 1, an intelligent device for safely replacing a battery in a battery working state is shown, which comprises a battery pack #1 and a battery pack #2, wherein the output end of the battery pack #1 is connected with a first switching unit, the first switching unit is respectively connected with a first driving unit and a second switching unit, the second switching unit is respectively connected with a second driving unit and a first voltage and current detection unit, the output end of the battery pack #2 is connected with a third switching unit, the third switching unit is respectively connected with a third driving unit and a fourth switching unit, the fourth switching unit is respectively connected with a fourth driving unit and a second voltage and current detection unit, the first voltage and current detection unit and the second voltage and current detection unit are respectively connected with a power supply output end, the first driving unit, the second driving unit, the third driving unit and the fourth driving unit are respectively connected with an intelligent control unit, the intelligent control unit connects multichannel electricity-taking unit and battery detecting element respectively, and the multichannel electricity-taking unit connects group battery # 1's incoming end respectively, group battery # 2's incoming end and power supply output end, and battery detecting element, external battery connect group battery # 1's incoming end and group battery # 2's incoming end respectively.
Further, the intelligent control system further comprises a heat dissipation unit, a state output unit and a safety protection unit, wherein the heat dissipation unit is connected with the intelligent control unit, the input ends of the state output unit and the safety protection unit are respectively connected with the output end of the intelligent control unit, and the output ends of the state output unit and the safety protection unit are respectively connected with an output terminal.
Further, the output end of the battery pack #1 is connected to the source electrode of the NMOS tube in the first switching unit, the drain electrode of the NMOS tube in the first switching unit is connected to the drain electrode of the NMOS tube in the second switching unit, and the source electrode of the NMOS tube in the second switching unit is connected to the first voltage/current detection unit.
Further, the output end of the battery pack #2 is connected to the source electrode of the NMOS tube in the third switching unit, the drain electrode of the NMOS tube in the third switching unit is connected to the drain electrode of the NMOS tube in the fourth switching unit, and the source electrode of the NMOS tube in the fourth switching unit is connected to the second voltage/current detection unit.
Furthermore, the input ends of the first driving unit, the second driving unit, the third driving unit and the fourth driving unit are respectively connected with the output end of the intelligent control unit, and the output end of any one of the driving units is connected with the grid electrode of the NMOS tube in the corresponding switching unit.
As shown in fig. 5-7, the device further includes a housing and a device board, wherein the first switching unit, the first driving unit, the second switching unit, the second driving unit, the third switching unit, the third driving unit, the fourth switching unit, the intelligent control unit and the multi-path power supply unit are all disposed on the device board, and the device board is disposed inside the housing;
still be equipped with 3 terminals on one side at the device board top, 3 terminals are connected respectively on first switching unit, third switching unit and power supply output, and 3 terminals all are located the outside of casing.
Furthermore, the shell is rectangular and consists of a top cover and a base, and the device plate is fixed on the base;
the heat dissipation unit comprises a heat dissipation fan, heat dissipation holes respectively formed in two opposite sides of the shell and mounting holes used for mounting the heat dissipation fan, and the heat dissipation fan is connected with the intelligent control unit.
Example 2
On the basis of embodiment 1, this embodiment proposes functions of each unit of an intelligent device for realizing safe battery replacement in a battery operating state.
A switching unit: the unit adopts a design mode of an N-channel field effect transistor back-to-back type, and an N-channel field effect transistor (N-MOS) integrates a radiator, so that uninterrupted switching and charging and discharging management of power supply branches are realized.
A drive unit: the driving unit of each switching unit ensures that a switch in the switching unit is effectively triggered, has an isolation characteristic and consists of an isolation DCDC power supply and an isolation optocoupler.
A multi-path electricity taking unit: mainly be responsible for providing stable low pressure direct current voltage for each work cell, this unit adopts the multichannel to get the mode of electricity, through the diode directly with the mode, respectively from battery #1, battery #2, the output is got the electricity simultaneously, battery #1 promptly, battery #2, any place of output three places has the electricity, this unit all can normally get the electricity work.
A battery detection unit: the system comprises a signal conversion circuit and a filter circuit, and is used for acquiring the power supply state of an external battery in real time.
The intelligent control unit: the intelligent control unit is composed of a Complex Programmable Logic Device (CPLD) minimum system, comprises a JTAG program downloading circuit, a clock circuit, a reset circuit and the like, and is responsible for the time sequence control of the switching unit, the detection and judgment of the battery state and the processing of an output event.
A state output unit: the unit is mainly used for outputting the power conversion working state of the device and outputting the power conversion working state in a relay dry contact mode.
A safety protection unit: the unit is a safety protection working mechanism for cutting off external power supply and the like in the battery replacement process.
A heat dissipation unit: the unit is mainly used for heat dissipation of a power device of the device body.
A voltage current detection unit: the power supply state detection device is used for detecting power consumption data such as voltage and current of a user side and judging a power supply state and comprises a current divider, a voltage dividing resistor and an operational amplifier.
As shown in fig. 7, the first switching unit and the first driving unit form a discharging NMOS switch of the battery #1, the second switching unit and the second driving unit form a charging NMOS switch of the battery #1, the third switching unit and the third driving unit form a discharging NMOS switch of the battery #2, the fourth switching unit and the fourth driving unit form a charging NMOS switch of the battery #2, and the status output unit includes a status detection and status output port, wherein a terminal of the battery #1 is disposed at a side of the device board close to the discharging NMOS switch of the battery #1 and the charging NMOS switch of the battery #1, a terminal of the battery #2 is disposed at a side close to the discharging NMOS switch of the battery #2 and the charging NMOS switch of the battery #2, a load terminal is disposed between the terminal of the battery #1 and the terminal of the battery #2, and a multi-path power supply unit is disposed at a side of the device board far from the discharging NMOS switch of the battery #1 and the charging NMOS switch of the battery #1, CPLD intelligence control unit and state detection and state output port.
Example 3
As shown in fig. 2, on the basis of embodiment 1, this embodiment proposes an operating principle and an implementation manner of an intelligent device for safely replacing a battery in a battery operating state.
1. And (5) accessing the battery pack, and initializing the system.
2. The system carries out battery pack access detection and determines a battery pack access branch.
2.1 if only the battery information of the battery pack #1 is read back, it is judged that only the battery #1 is accessed.
2.1.1 judges whether or not the discharge condition is satisfied based on the battery information such as the voltage and capacity of the battery # 1.
2.1.2 if the battery information such as the voltage and the capacity of the battery #1 meets the discharging condition, the battery capacity is larger than the discharging threshold, the voltage is larger than the discharging threshold, the charging switch of the battery #1 is closed, and the discharging switch of the battery #1 is closed. If the battery information such as the voltage and the capacity of the battery #1 does not meet the discharging condition, the battery capacity is smaller than or equal to the discharging threshold, the voltage is smaller than or equal to the discharging threshold, the charging and discharging switch of the battery #1 is kept disconnected, and the information of the battery #1 is monitored in real time until the discharging condition is met.
The 2.1.3 system reads voltage current information on the electrical side. If the voltage and current information of the power utilization side is judged to be normal, the charge-discharge state of the battery #1 is maintained; and if the voltage and current information of the power utilization side is judged to be abnormal, an abnormal processing mechanism is entered, a safety protection unit is entered, a charging and discharging switch of the battery #1 is disconnected, and the system initialization is returned until the fault information is cleared.
2.2 if the battery information of both the battery pack #1 and the battery pack #2 is read back, it is determined that the battery #1 and the battery #2 are simultaneously connected.
2.2.1 judges whether or not the discharge condition is satisfied based on the battery information such as the voltage and capacity of battery #1 and battery # 2.
2.2.2 if only the battery information such as the voltage, the capacity and the like of the battery #1 meets the discharging condition, the battery capacity is greater than the discharging threshold value, and the voltage is greater than the discharging threshold value; if both sets of batteries meet the discharge condition and the voltage and capacity parameters of battery #1 are greater than or equal to the voltage and capacity of battery # 2; the charge switch of battery #1 is closed and the discharge switch of battery #1 is closed.
The 2.2.3 system reads voltage current information on the electrical side. If the voltage and current information of the power utilization side is judged to be normal, the charge-discharge state of the battery #1 is maintained; and if the voltage and current information of the power utilization side is judged to be abnormal, an abnormal processing mechanism is entered, a safety protection unit is entered, a charging and discharging switch of the battery #1 is disconnected, and the system initialization is returned until the fault information is cleared.
2.2.4 if the battery information such as the voltage and the capacity of the battery #1 does not satisfy the discharge condition, the battery capacity is less than or equal to the discharge threshold, the voltage difference between the voltage value of the battery #2 and the voltage of the battery #1 is greater than the replacement difference Δ V, the capacity difference between the capacity value of the battery #2 and the capacity of the battery #1 is greater than the replacement difference Δ S, the charge switch of the battery #1 is opened, the discharge switch of the battery #2 is closed, the discharge switch of the battery #1 is opened, the charge switch of the battery #2 is closed, and the replacement of the battery #1 by the battery #2 is completed.
The 2.2.5 system reads voltage current information on the electrical side. If the voltage and current information of the power utilization side is judged to be normal, the charge-discharge state of the battery #2 is maintained; and if the voltage and current information of the power utilization side is judged to be abnormal, an abnormal processing mechanism is entered, a safety protection unit is entered, a charging and discharging switch of the battery #2 is disconnected, and the system initialization is returned until the fault information is cleared.
2.2.6 if only the battery information such as the voltage, the capacity and the like of the battery #2 meets the discharging condition, the battery capacity is greater than the discharging threshold value, and the voltage is greater than the discharging threshold value; if both sets of batteries meet the discharge condition and the voltage and capacity parameters of battery #1 are less than the voltage and capacity of battery # 2; the charge switch of battery #2 is closed and the discharge switch of battery #2 is closed.
The 2.2.7 system reads voltage current information on the electrical side. If the voltage and current information of the power utilization side is judged to be normal, the charge-discharge state of the battery #2 is maintained; and if the voltage and current information of the power utilization side is judged to be abnormal, an abnormal processing mechanism is entered, a safety protection unit is entered, a charging and discharging switch of the battery #2 is disconnected, and the system initialization is returned until the fault information is cleared.
2.2.8 if the battery information such as the voltage and the capacity of the battery #2 does not satisfy the discharge condition, the battery capacity is less than or equal to the discharge threshold, the voltage difference between the voltage value of the battery #1 and the voltage of the battery #2 is greater than the replacement difference Δ V, the capacity difference between the capacity value of the battery #1 and the capacity of the battery #2 is greater than the replacement difference Δ S, the charge switch of the battery #2 is opened, the discharge switch of the battery #1 is closed, the discharge switch of the battery #2 is opened, the charge switch of the battery #1 is closed, and the replacement of the battery #2 by the battery #1 is completed.
The 2.2.9 system reads voltage current information on the power side. If the voltage and current information of the power utilization side is judged to be normal, the charge-discharge state of the battery #1 is maintained; and if the voltage and current information of the power utilization side is judged to be abnormal, an abnormal processing mechanism is entered, a safety protection unit is entered, a charging and discharging switch of the battery #1 is disconnected, and the system initialization is returned until the fault information is cleared.
2.3 if only the battery information of the battery pack #2 is read back, it is judged that only the battery #2 is accessed.
2.1.1 judges whether or not the discharge condition is satisfied based on the battery information such as the voltage and capacity of the battery # 2.
2.1.2 if the battery information such as the voltage and the capacity of the battery #2 meets the discharging condition, the battery capacity is larger than the discharging threshold, the voltage is larger than the discharging threshold, the charging switch of the battery #2 is closed, and the discharging switch of the battery #2 is closed. And if the battery information such as the voltage and the capacity of the battery #2 does not meet the discharging condition, the battery capacity is less than or equal to the discharging threshold, the voltage is less than or equal to the discharging threshold, the charging and discharging switch of the battery #2 is kept disconnected, and the information of the battery #2 is monitored in real time until the discharging condition is met.
The 2.1.3 system reads voltage current information on the electrical side. If the voltage and current information of the power utilization side is judged to be normal, the charge-discharge state of the battery #2 is maintained; and if the voltage and current information of the power utilization side is judged to be abnormal, an abnormal processing mechanism is entered, a safety protection unit is entered, a charging and discharging switch of the battery #2 is disconnected, and the system initialization is returned until the fault information is cleared.
Example 4
As shown in fig. 3-4, on the basis of embodiment 1, this embodiment proposes an operation mode of an intelligent device for realizing safe battery replacement in a battery operation state, in which a battery #2 is used to replace a battery #1 for supplying power.
The specific mode is as follows:
(1) the supply battery #1 is accessed to the J1 position.
(2) And (5) operating the system and finishing initialization. The intelligent control unit detects parameter information such as the voltage capacity of the battery #1 and determines that the battery #1 is connected.
(3) The voltage capacity parameter of battery #1 is judged. The voltage parameter V1 of the battery #1 is more than 0.8 times of rated voltage, and the capacity parameter S1 is more than 0.2 times of rated capacity.
(4) The intelligent control unit sends an NMOS-Q1, an NMOS-Q2 drives a closing signal, a discharging switch NMOS-Q1 of the power supply branch battery #1 is switched, and a charging NMOS-Q2 switch is in a closing state. At this time, the battery #1 may be discharged or charged.
(5) The device provides power to the user output. And detecting voltage and current data of the electricity used by the user side. And judging whether the power is supplied normally. Under normal conditions, the power supply is continuously maintained. If the power supply is abnormal, the intelligent control unit sends NMOS-Q1, and NMOS-Q2 drives a turn-off signal to return to re-detect the voltage capacity parameter information of the battery # 1.
(6) The voltage capacity parameter information of battery #1 is judged. If the voltage parameter V1 of the battery #1 is less than or equal to 0.8 times of rated voltage, the capacity parameter S1 is less than or equal to 0.2 times of rated capacity. And judging whether the battery #2 is accessed according to the battery information of the interface port of the battery # 2. If the battery #2 voltage parameter V2-the battery #1 voltage parameter V1 > 3V, the battery #2 capacity parameter S2-the battery #1 capacity parameter S1 > 20%.
(7) The intelligent control unit preferentially sends a switch-off driving signal of the charging NMOS-Q2 switch of the branch circuit of the battery #1, and the switch of the charging NMOS-Q2 switch of the branch circuit of the battery #1 is switched off immediately.
(8) The intelligent control unit sends an NMOS-Q3 driving closing signal, the discharging NMOS-Q3 of the battery #2 branch is closed, and the battery #2 branch starts to discharge. And the problem of circulating current between two groups of batteries is avoided by utilizing the unidirectional conduction function of a freewheeling diode in the NMOS. At this time, the load or the electric equipment is simultaneously supplied by the two branches of the battery #1 and the battery #2, and the battery #1 and the battery #2 distribute different powers according to the capacity of the battery at this time. Furthermore, the intelligent control unit closes the active output and the passive output of the relay and outputs the power conversion state of the intelligent control unit.
(9) The intelligent control unit sends a switch-off driving signal of the discharging NMOS-Q1 of the branch circuit of the battery #1, and the branch circuit of the battery #1 stops discharging.
(10) The intelligent control unit sends a switch closing driving signal of the charging NMOS-Q4 switch of the battery #2 branch, and the NMOS-Q4 is closed. The freewheeling diode is bypassed by the MOS tube main loop, thereby achieving the effect of reducing the loss. At this time, the discharge switch NMOS-Q3 of the battery #2 and the charge switch NMOS-Q4 are closed, and the load or the consumer is completely powered by the battery # 2. Furthermore, the intelligent control unit switches off the active output and the passive output of the relay, and cancels the self replacement state. The power supply of the battery #2 is completed to replace the power supply of the battery # 1.
The utility model aims to solve the problem that when the capacity of a battery module is insufficient and a battery pack cannot continuously supply power to an electric load, a battery with sufficient capacity can be safely, uninterruptedly, intelligently and conveniently replaced by the battery with insufficient capacity in an original system. The problem that the battery needs to be powered off and replaced when the electric quantity of the standby battery is insufficient is solved, and the working continuity of the equipment is effectively guaranteed. The whole replacement process of the battery is uninterrupted, and the power failure phenomenon does not occur in the rear-stage load. The safety of the whole replacement process of the battery is ensured, and the circulation problem caused by the internal resistance difference, the capacity difference and the like of the battery can not be generated.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. An intelligent device for safely replacing batteries in a battery working state comprises a battery pack #1 and a battery pack #2, and is characterized in that the output end of the battery pack #1 is connected with a first switching unit, the first switching unit is respectively connected with a first driving unit and a second switching unit, the second switching unit is respectively connected with a second driving unit and a first voltage and current detection unit, the output end of the battery pack #2 is connected with a third switching unit, the third switching unit is respectively connected with a third driving unit and a fourth switching unit, the fourth switching unit is respectively connected with a fourth driving unit and a second voltage and current detection unit, the first voltage and current detection unit and the second voltage and current detection unit are respectively connected with a power supply output end, and the first driving unit, the second driving unit, the third driving unit and the fourth driving unit are respectively connected with an intelligent control unit, the intelligent control unit connects multichannel electricity-taking unit and battery detecting element respectively, and the multichannel electricity-taking unit connects group battery # 1's incoming end respectively, group battery # 2's incoming end and power supply output end, and battery detecting element, external battery connect group battery # 1's incoming end and group battery # 2's incoming end respectively.
2. The intelligent device for safely replacing the battery in the working state of the battery as claimed in claim 1, further comprising a heat dissipation unit, a state output unit and a safety protection unit, wherein the heat dissipation unit is connected with the intelligent control unit, the input ends of the state output unit and the safety protection unit are respectively connected with the output end of the intelligent control unit, and the output ends of the state output unit and the safety protection unit are respectively connected with the output terminal.
3. The intelligent device for safely replacing the battery under the battery working state according to claim 2, wherein the output end of the battery pack #1 is connected with the source electrode of the first switching unit internal NMOS transistor, the drain electrode of the first switching unit internal NMOS transistor is connected with the drain electrode of the second switching unit internal NMOS transistor, and the source electrode of the second switching unit internal NMOS transistor is connected with the first voltage and current detection unit.
4. The intelligent device for safely replacing the battery under the battery working state according to claim 3, wherein the output end of the battery pack #2 is connected with the source electrode of the NMOS tube in the third switching unit, the drain electrode of the NMOS tube in the third switching unit is connected with the drain electrode of the NMOS tube in the fourth switching unit, and the source electrode of the NMOS tube in the fourth switching unit is connected with the second voltage and current detection unit.
5. The intelligent device for safely replacing the battery under the working state of the battery according to claim 3 or 4, wherein the input ends of the first driving unit, the second driving unit, the third driving unit and the fourth driving unit are respectively connected with the output end of the intelligent control unit, and the output end of any one driving unit is connected with the grid electrode of the NMOS tube in the corresponding switching unit.
6. The intelligent device for safely replacing the battery in the working state of the battery according to claim 5, further comprising a housing and a device board, wherein the first switching unit, the first driving unit, the second switching unit, the second driving unit, the third switching unit, the third driving unit, the fourth switching unit, the intelligent control unit and the multi-path power supply unit are all arranged on the device board, and the device board is arranged inside the housing;
still be equipped with 3 terminals on one side at the device board top, 3 terminals are connected respectively on first switching unit, third switching unit and power supply output, and 3 terminals all are located the outside of casing.
7. The intelligent device for safely replacing the battery in the working state of the battery as claimed in claim 6, wherein the housing is rectangular and is composed of a top cover and a base, and the device plate is fixed on the base;
the heat dissipation unit comprises a heat dissipation fan, heat dissipation holes respectively formed in two opposite sides of the shell and mounting holes used for mounting the heat dissipation fan, and the heat dissipation fan is connected with the intelligent control unit.
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| CN114336823A (en) * | 2022-01-17 | 2022-04-12 | 成都康斯维智慧能源技术有限公司 | Intelligent device for safely replacing battery in battery working state and replacement method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114336823A (en) * | 2022-01-17 | 2022-04-12 | 成都康斯维智慧能源技术有限公司 | Intelligent device for safely replacing battery in battery working state and replacement method |
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