Battery pack management system
Technical Field
The invention relates to the technical field of battery pack management, in particular to a battery pack management system.
Background
In the use process of the battery pack, a situation that one or more batteries have faults exists, and in order to avoid waste, the faulty batteries are usually required to be disassembled and replaced by new batteries;
at present, when a battery is replaced, the state of the whole battery pack is easy to change after the replaced battery is connected, the change controllability is poor, and when the state of the battery pack after a new battery is replaced has a change value exceeding an acceptable range, the whole battery pack cannot be used continuously.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a battery pack management method aiming at the above-mentioned defects of the prior art;
a battery management system is also provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a battery pack management method is constructed, and the implementation method comprises the following steps:
the first step is as follows: the power management system records the range of normal data values of the battery pack in the normal working state;
the second step is that: the power management system monitors the state of the battery pack and gives a prompt when the data value of the state of the battery pack partially or completely exceeds the range of the normal data value;
the third step: inquiring a fault battery in the battery pack according to the prompt, and removing the fault battery in the non-working state of the battery pack;
the fourth step: leading out the positive and negative contact electricity of the removed battery in the battery pack to the outside through a conductive piece, and electrically connecting the positive and negative contact electricity with the battery to be replaced;
the fifth step: and (5) running the battery pack in a test mode and detecting whether the working state data value of the battery pack conforms to the normal data value range.
The invention relates to a battery pack management method, which further comprises the following steps: and when the trial operation of the battery pack conforms to the normal data value range, the conductive piece is detached in the power-off state, and the battery to be replaced is installed in the battery pack.
And when the battery pack test operation does not accord with the normal data value range, replacing a new battery and repeating the fifth step until the battery pack test operation accords with the normal data value range, removing the conductive piece in a power-off state, and loading the battery qualified in the test operation test into the battery pack.
The battery pack management method comprises the step of obtaining a state data value of the battery pack, wherein the state data value of the battery pack comprises one or more of battery pack voltage, battery pack discharging current, battery pack temperature, battery pack internal resistance and charging and discharging multiplying power.
A battery pack management system is used for the battery pack management method, and comprises a battery pack, two conductive pieces, a battery management system and a replacement battery;
the conductive piece is used for leading out positive and negative connection points at the position of the battery after the battery pack is detached to the outside of the battery pack;
the battery management system is used for recording the normal data value range of the battery pack in the normal working state, detecting the working state of the battery pack after the battery is replaced by connecting the conductive piece and judging whether each data value of the battery pack is in the normal data value range.
The battery pack management system comprises a battery pack, a battery pack temperature sensor, a battery pack internal resistance sensor, a battery pack state data value processing unit and a battery pack state data value processing unit, wherein the battery pack state data value sensor is used for processing the battery pack state data value.
The battery pack management system further comprises a support, wherein the support comprises two support columns and a positioning frame which is fixedly connected with the middle parts of the two support columns and is used for placing the hollow interior of the battery pack; the positioning frame is characterized by also comprising an adapter plate positioned at the upper end of the positioning frame, wherein two ends of the adapter plate are respectively connected with the two support columns in a sliding manner; the adapter plate is provided with a position-adjustable conductive joint, and the conductive joint is electrically connected with the conductive piece.
The battery pack management system of the invention, wherein the conductive joint comprises an insulating base; the upper surface of the insulating base is provided with a magnet and a mounting groove for mounting the magnet, and the lower surface of the insulating base is provided with two electric connecting sheets which are fixedly connected with the conductive pieces; and an iron sheet is arranged on the lower surface of the adapter plate.
The battery management system of the present invention, wherein the conductive member includes an electric wire connected to the electrical connection sheet, and a conductive clip electrically connected to the electric wire.
The battery pack management system is characterized in that a plurality of elastic insulating clamping arms for clamping the upper end edge of the battery pack are arranged at the edge of the adapter plate.
The invention has the beneficial effects that: the power management system records the range of normal data values of the battery pack in the normal working state; the power management system monitors the state of the battery pack and gives a prompt when the data value of the state of the battery pack partially or completely exceeds the range of the normal data value; inquiring a fault battery in the battery pack according to the prompt, and removing the fault battery in the non-working state of the battery pack; leading out the positive and negative contact electricity of the removed battery in the battery pack to the outside through a conductive piece, and electrically connecting the positive and negative contact electricity with the battery to be replaced; the battery pack is operated in a test mode and whether the working state data value of the battery pack accords with the normal data value range is detected; the replaced battery is tested in a trial operation mode before being installed into the battery pack, so that the reliability of the performance of the battery pack after the battery is installed and replaced is guaranteed, and the scrapping risk is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
FIG. 1 is a flow chart of a battery management method according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a battery management system according to a preferred embodiment of the present invention;
fig. 3 is a cross-sectional view of a battery management system electrical connector in accordance with a preferred embodiment of the present invention;
fig. 4 is a schematic diagram of a conductive member structure of a battery management system according to a preferred embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
Fig. 1 shows a battery management method according to a preferred embodiment of the present invention, which is implemented as follows:
s01: the power management system records the range of normal data values of the battery pack in the normal working state;
s02: the power management system monitors the state of the battery pack and gives a prompt when the data value of the state of the battery pack partially or completely exceeds the range of the normal data value;
s03: inquiring a fault battery in the battery pack according to the prompt, and removing the fault battery in the non-working state of the battery pack;
s04: leading out the positive and negative contact electricity of the removed battery in the battery pack to the outside through a conductive piece, and electrically connecting the positive and negative contact electricity with the battery to be replaced;
s05: the battery pack is operated in a test mode and whether the working state data value of the battery pack accords with the normal data value range is detected;
the replaced battery is tested in a trial operation mode before being installed into the battery pack, so that the reliability of the performance of the battery pack after the battery is installed and replaced is guaranteed, and the scrapping risk is avoided.
As shown in fig. 1, the method further comprises: when the trial operation of the battery pack conforms to the normal data value range, the conductive piece is detached in the power-off state, and the battery to be replaced is installed in the battery pack.
As shown in fig. 1, when the trial operation of the battery pack does not conform to the normal data value range, the fifth step is repeated by replacing a new battery until the trial operation of the battery pack conforms to the normal data value range, the conductive member is detached in the power-off state, and the battery qualified in the trial operation test is loaded into the battery pack.
As shown in fig. 1, the state data value of the battery pack includes one or more of a battery pack voltage, a battery pack discharge current, a battery pack temperature, a battery pack internal resistance, and a charge-discharge rate.
A battery management system for the above battery management method, as shown in fig. 2, with reference to fig. 3 and fig. 4, includes a battery 1, two conductive members 2, a battery management system and a replacement battery;
the conductive piece 2 is used for leading out positive and negative connection points at the position of the battery after the battery pack 1 is detached to the outside of the battery pack 1;
the battery management system is used for recording the normal data value range of the battery pack 1 in the normal working state, detecting the working state of the battery pack after the battery is connected and replaced through the conductive piece and judging whether each data value of the battery pack is in the normal data value range or not;
the replaced battery is tested in a trial operation mode before being installed into the battery pack, so that the reliability of the performance of the battery pack after the battery is installed and replaced is guaranteed, and the scrapping risk is avoided.
As shown in fig. 2, the state data values of the battery pack 1 include one or more of a battery pack voltage, a battery pack discharge current, a battery pack temperature, a battery pack internal resistance, and a charge-discharge rate.
As shown in fig. 2, 3 and 4, the battery pack support further comprises a support frame, wherein the support frame comprises two support columns 30 and a positioning frame 31 which is fixedly connected with the middle parts of the two support columns 30 and is hollow inside and used for placing the battery pack 1; the device also comprises an adapter plate 32 positioned at the upper end of the positioning frame 31, and two ends of the adapter plate 32 are respectively connected with the two support columns 30 in a sliding manner; the adapter plate 32 is provided with a position-adjustable conductive connector 33, and the conductive connector 33 is electrically connected with the conductive piece 2; the group battery that will pull down the trouble battery is placed and is fixed a position in the cavity hole in locating frame 31, then adjust the position of conductive joint 33 and the group battery 1 on the positive negative joint of power of having dismantled the current conducting plate of battery department corresponding, then machine or manual work drive keysets 32 are down, make the positive negative joint of power of the current conducting plate of having dismantled the battery department on conductive joint 33 and the group battery 1 carry out the electricity respectively and be connected, two electrically conductive 2 and conductive joint 33 electricity are connected, and then the joint on the group battery is drawn forth, and convenient for operation, and be convenient for change the replacement battery that does not conform to the requirement fast.
As shown in fig. 2 and 3, the conductive contact 33 includes an insulating base 330; the upper surface of the insulating base 330 is provided with a magnet 331 and a mounting groove 332 for mounting the magnet 331, and the lower surface is provided with two electric connecting sheets 333 which are fixed with electric connecting conductive pieces; the lower surface of the adapter plate 32 is provided with an iron sheet 320; the position of the conductive connector 33 is changed rapidly in a magnetic adsorption mode, so that the use is convenient;
preferably, the magnet is a strong magnet.
As shown in fig. 2, 3 and 4, the conductive member 2 includes an electric wire 20 connected to the electric connection sheet 333, and a conductive clip 21 electrically connected to the electric wire 20; or with other existing structures that facilitate electrical connection to a replacement battery.
As shown in fig. 2, the edge of the adapter plate 32 is provided with a plurality of elastic insulating clamping arms 321 for clamping the upper end edge of the battery pack 1; ensuring the stability.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.