Battery simulating device
Technical field
The utility model relates to battery simulation technical field, particularly relates to a kind of battery simulating device.
Background technology
Electrokinetic cell is widespread use in energy storage, electric automobile and intelligent grid at present, for ensureing the long-acting operation of cell safety, need to be equipped with battery management and supervising device, the running status of Real-Time Monitoring battery, and carry out management of charging and discharging.Battery management and supervising device, before being loaded into battery system, must carry out complete test and check.In testing process, need to simulate real use scenes, if with common chemical cell, can bring problems such as potential safety hazard, environmental pollution, cost costliness.Therefore,, for simulating the feature being managed with monitored object, be necessary to provide a kind of battery simulating device, artificial battery various characteristics in use.
At present conventional battery simulating device function is comparatively single, can only change by analog voltage, and the charge-discharge characteristic of battery can not simulated, cannot complete detection battery management and the quality of supervising device.
Utility model content
Based on this, be necessary to provide a kind of battery simulating device, voltage characteristic that can simulated battery, charge-discharge characteristic that again can simulated battery, realizes the full emulation of battery.
A kind of battery simulating device, comprise control module, programmable digital power supply, electronic load, switch and two ports, described control module is electrically connected to described electronic load and described programmable digital power supply, one end of one end of described electronic load and described programmable digital power supply is connected to one of described port, the other end of described electronic load and described programmable digital power supply is connected to port described in another by described switch, and described switch switches being electrically connected between described electronic load and described programmable digital power supply and described port.
In one embodiment, described switch is single-pole double-throw switch (SPDT).
In another embodiment, described switch is relay, and described relay is electrically connected to described control module.
Further, described electronic load has display unit.
Further, described programmable digital power supply has display unit.
Further, described battery simulating device also comprises feedback unit, and described feedback unit is connected electrically between described port and described control module.
Further, described control module is single-chip microcomputer.
The beneficial effects of the utility model are, utilize switch to carry out the switching between electronic load and programmable digital power supply, voltage characteristic, charge-discharge characteristic that can simulated battery, energy absorption or output voltage and electric current, and can simulated battery charging and discharging curve, realize the full emulation of battery, voltage, current detecting and the fault diagnosis functions of the tested battery management of more effective checking and supervising device.
In the utility model, on electronic load, there is display unit, can show in real time electric current and voltage, make to detect more convenient, and in battery simulating device, introduce feedback unit, can send in time feedback information to control module, control module adjusts circuit accordingly, can improve input and output precision.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of embodiment of battery simulating device in the utility model;
Embodiment
Below in conjunction with accompanying drawing, the utility model is described.
A kind of battery simulating device with charge-discharge characteristic, as shown in Figure 1, comprise control module, programmable digital power supply, electronic load, switch and port 3,4, one end of one end of electronic load and programmable digital power supply is electrically connected to respectively port 3, the other end of electronic load and programmable digital power supply is all connected to switch, then switch is connected to port 4.In the present embodiment, switch adopts single-pole double-throw switch (SPDT) K, realizes the switching that electronic load and programmable digital power supply are connected with port 4.According to experiment needs, port 3,4 places can be electrically connected charging set or load, and tested battery management and supervising device are also electrically connected with port 3,4.
In the time needing the charge characteristic of simulated battery, single-pole double-throw switch (SPDT) K is connected to binding post 2, connect charging set at port 3,4 places simultaneously.Now, control module can be controlled electronic load and carry out constant current or constant-voltage charge, and simulated battery charging curve.Tested battery management and supervising device are connected to port 3,4, detect input voltage and input current, obtain detected value, and compare with actual measured value, can verify its input voltage, current detection accuracy.
In simulated battery charge characteristic process; in the time that the input voltage value on electronic load rises to the warning of tested battery management and supervising device setting or protects threshold value; observe warning and the protection situation of tested battery management and supervising device, can verify its fault diagnosis functions.
In the present embodiment, on electronic load, display unit can be set, real-time demonstration voltage and current value, the convenient detection to battery management and supervising device.
In the time needing the flash-over characteristic of simulated battery, single-pole double-throw switch (SPDT) K is connected to binding post 1, connect load at port 3,4 places simultaneously.Now control module control programmable digital electric power output voltage and electric current, and simulated battery discharge curve.Tested battery management and supervising device are connected to port 3,4, detect output voltage and output current, obtain detected value, and compare with actual measured value, can verify its output voltage, current detection accuracy.
In simulated battery discharge curve process; in the time that numerical value power supply output valve able to programme drops to the warning of tested battery management and supervising device and protects threshold value; observe protection and the alarm condition of tested battery management and supervising device, can verify its fault diagnosis functions.
In the present embodiment, same can arrange display unit on programmable digital power supply, shows in real time voltage and current value, the convenient detection to battery management and supervising device.
In the above-described embodiments, single-pole double-throw switch (SPDT) also can replace to relay, relay is electrically connected to control module simultaneously, and control module can pilot relay like this, to switching being connected between electronic load and programmable power supply and port 4.
Detect the accuracy of test in order to improve battery management and supervising device, battery simulating device in the utility model can also be introduced a feedback unit, feedback unit is connected between port 3 and control module, the voltage in loop and current value are fed back to control module by feedback unit, control module can be adjusted programmable digital power supply or electronic load in time, improves the precision of its input/output argument.
In the utility model, control module can adopt single-chip microcomputer, realizes the control to whole battery simulating device.
The above embodiment has only expressed preferred embodiments of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.