Battery cell pressure difference adjusting equipment of power battery pack
Technical Field
The invention relates to the technical field of batteries, in particular to a cell differential pressure adjusting device of a power battery pack.
Background
Due to the popularization of electric vehicles, the manufacture and development of automobile batteries are increased, and various potential safety hazards in the batteries appear, so that the safety detection of the batteries is more and more important in order to ensure the safety of each battery.
Although the existing battery cell voltage difference detection technology is available, the technology is also incomplete, wherein the technology is characterized in that voltage data and current data of each battery cell in the battery are firstly obtained, and a cell voltage difference value under a standing working condition is determined according to the data; and then measuring the charge-discharge current value of each battery cell in the target battery so as to determine the corresponding voltage value, and comparing the voltage value with a predicted voltage threshold value to obtain whether the battery cell differential pressure in the target battery is abnormal. The above measurement method is about the aspect of cell differential pressure detection, and the application of the technology in the aspect of new energy power batteries of automobiles is not mature.
In the design of the current new energy automobile battery, the cost, the heat dissipation, the safety and other factors are considered, a plurality of battery cells are generally connected to form a battery with larger capacity, and the battery is also a high-voltage battery pack; as long as there is a problem with a battery cell, the performance of the whole battery can be greatly influenced, and potential safety hazards can exist. The conventional power battery test of the automobile can only realize an integral performance test, and cannot realize the chip differential pressure regulation in each battery, so that the improvement and innovation on the original detection technical level are needed.
Disclosure of Invention
In order to solve the technical problem, the cell differential pressure adjusting device of the power battery pack is provided, and can effectively solve the problem that a vehicle has low electric quantity and faults caused by unbalance of single bodies of power batteries and ensure the safety of the batteries and a charger.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a power battery group's electric core pressure differential regulating apparatus, its is including locating the battery pack module on the workstation, the battery pack module includes a plurality of electric cores, equipment still includes an at least holding the portable group battery of X axle of battery pack module is placed the module, two at least dress and is in the manual displacement platform of Y axle on the workstation, two at least perpendicular and symmetry are installed portable test jig on the manual displacement platform of Y axle and dress are every Z axle adjustment mechanism on the portable test jig, the manual displacement platform of Y axle, portable test jig and Z axle adjustment mechanism all symmetry are located the outside of battery pack module, every Z axle adjustment mechanism includes at least one and fixes mounting panel on portable test jig, two at least symmetries are installed Z axle adjustment module on the mounting panel side, install in the driven displacement platform of Z axle on Z axle adjustment module output, The movable probe distance adjusting frame is arranged on the Z-axis driven displacement table, and a plurality of probes are uniformly arranged on the movable probe distance adjusting frame through fixing seats.
Preferably, the X-axis movable battery pack placement module includes at least one accommodating frame adapted to the plurality of battery cells, a fixing plate mounted on the workbench, and a slide rail mounted on the fixing plate, and the accommodating frame is mounted on the slide rail and can move upward along the X-axis in cooperation with the slide rail.
Preferably, at least one handle is further provided on the end of the accommodating shelf.
Preferably, the Y-axis manual displacement table includes at least two guide rails symmetrically disposed at the outer side of the battery module, and the movable test jig is mounted on the guide rails through sliders.
Preferably, each movable test rack is in an inverted U shape.
Preferably, the Z-axis adjustment module includes an elbow clip fixedly mounted on the mounting plate.
Through the technical scheme, the battery cell differential pressure adjusting equipment of the power battery pack has the following beneficial effects:
1. the power battery parameters are collected, and the power compensation and the balance are carried out on each monomer, so that each monomer is ensured to reach the preset voltage, and the problem of monomer pressure difference is solved;
2. the invention supports real-time detection and monitoring of each single battery voltage, automatic measurement and calculation of charging or discharging energy, and automatic storage and export of test data.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cell differential pressure adjustment device of a power battery pack according to an embodiment of the present invention.
The respective symbols in the figure: 100, a workbench; 1, a battery module; 2, an X-axis movable battery pack placement module; 21, a containing frame; 22, fixing the plate; 23, a slide rail; 24, a handle; 3, a Y-axis manual displacement table; 31, a guide rail; 32, a slide block; 4, the test frame can be moved; 5, a Z-axis adjusting mechanism; 51, a mounting plate; 52, elbow clamps; 53, a Z-axis driven displacement table; 54, a movable probe distance adjusting frame; 55, a fixed seat; and 56, a probe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes the embodiments of the present invention in further detail with reference to the schematic drawings.
As shown in fig. 1, a cell differential pressure adjusting apparatus for a power battery pack includes a battery pack module 1 disposed on a workbench 100, the battery pack module 1 includes a plurality of cells, the apparatus further includes at least one accommodating module 2 for placing a battery pack movable along an X axis of the battery pack module 1, at least two modules fixedly mounted on a Y axis manual displacement table 3, at least two movable test frames 4 vertically and symmetrically mounted on the Y axis manual displacement table 3, and Z axis adjusting mechanisms 5 fixedly mounted on each movable test frame 4, wherein the Y axis manual displacement table 3, the movable test frames 4, and the Z axis adjusting mechanisms 5 are symmetrically disposed at outer sides of the battery pack module 1, the movable test frames 4 and the Y axis manual displacement table 3 can move along a Y axis direction, and each Z axis adjusting mechanism 5 includes at least one mounting plate 51 fixed on the movable test frame 4, At least two elbow clamps 52 symmetrically installed on the side of the mounting plate 51, a Z-axis driven displacement table 53 installed on the output end of the elbow clamps 52, a movable probe distance adjusting frame 54 installed on the Z-axis driven displacement table 53, and a plurality of probes 56 evenly installed on the movable probe distance adjusting frame 54 through a fixing seat 55, wherein the movable probe distance adjusting frame 54 is matched with the elbow clamps 52 to move in the Z-axis direction, and the distance between each probe 56 and the battery pack module 1 is adjustable.
As shown in fig. 1, the X-axis movable battery pack placement module 2 includes at least one accommodating frame 21 adapted to the plurality of cores, a fixing plate 22 mounted on the worktable 100, and a slide rail 23 mounted on the fixing plate 22, wherein the accommodating frame 21 is mounted on the slide rail 23, the accommodating frame 21 can move upward along the X-axis in cooperation with the slide rail 23, and at least one handle 24 is further mounted on an end of the accommodating frame 21.
As shown in fig. 1, the Y-axis manual displacement table 3 includes at least two guide rails 31 symmetrically disposed on the outer side of the battery module 1, and the movable test racks 4 are mounted on the guide rails 31 by sliders 32, each movable test rack 4 being in an inverted U-shape.
The working principle of the invention is that the battery pack module matches corresponding probes according to the number of the electric cores, and moves the probes to the two ends of the electric cores, collects the parameters of the power battery, and supplements and balances each monomer, thereby ensuring that each monomer reaches the preset voltage, and eliminating the problem of monomer pressure difference.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.