CN220894401U - Ripple current generating device - Google Patents
Ripple current generating device Download PDFInfo
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- CN220894401U CN220894401U CN202322325332.4U CN202322325332U CN220894401U CN 220894401 U CN220894401 U CN 220894401U CN 202322325332 U CN202322325332 U CN 202322325332U CN 220894401 U CN220894401 U CN 220894401U
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Abstract
The utility model provides a ripple current generating device in the technical field of power electronics, which comprises an MCU, an ACDC power module, an amplitude generator, a waveform generator, a pre-charging module and a display screen, wherein the MCU is connected with the ACDC power module; the ACDC power module, the amplitude generator, the waveform generator and the pre-charging module are sequentially connected; the MCU is respectively connected with the ACDC power module, the amplitude generator, the waveform generator, the pre-charging module and the display screen. The utility model has the advantages that: output ripple current is achieved, and evaluation accuracy of battery performance and service life is greatly improved.
Description
Technical Field
The utility model relates to the technical field of power electronics, in particular to a ripple current generating device.
Background
The demand of new energy automobiles is increasing, and batteries are used as power sources of the new energy automobiles and are required to be subjected to aging tests. The traditional aging test equipment can only output direct current, and when a vehicle-mounted charger for charging a battery is connected with a power grid for charging, the vehicle-mounted charger usually contains alternating current low-frequency ripple current, the ripple current can influence the service life of the battery, and then the service life of a new energy automobile is influenced, so that the traditional aging test equipment cannot accurately simulate the scene of the actual use process of the battery, and further the evaluation of the performance and the service life of the battery is influenced.
Therefore, how to provide a ripple current generating device to output ripple current to improve the evaluation accuracy of the battery performance and the service life becomes a technical problem to be solved urgently.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a ripple current generating device for outputting ripple current so as to improve the evaluation accuracy of the performance and the service life of a battery.
The utility model is realized in the following way: a ripple current generating device comprises an MCU, an ACDC power module, an amplitude generator, a waveform generator, a pre-charging module and a display screen;
The ACDC power module, the amplitude generator, the waveform generator and the pre-charging module are sequentially connected; the MCU is respectively connected with the ACDC power module, the amplitude generator, the waveform generator, the pre-charging module and the display screen.
Further, the display screen is a touch display screen.
Furthermore, the pre-charging module is provided with a current sampling circuit.
Further, the system also comprises a communication module, wherein the communication module is connected with the MCU.
Further, the communication module is at least one of a 2G communication module, a 3G communication module, a 4G communication module, a 5G communication module, an NB-IOT communication module, a LORA communication module, a WIFI communication module, a Bluetooth communication module, a ZigBee communication module or a wired communication module.
The utility model has the advantages that:
The MCU, the ACDC power module, the amplitude generator, the waveform generator, the pre-charging module and the display screen are arranged, and the ACDC power module, the amplitude generator, the waveform generator and the pre-charging module are connected in sequence; the MCU is respectively connected with the ACDC power module, the amplitude generator, the waveform generator, the pre-charging module and the display screen; the MCU controls the ACDC power module, the amplitude generator, the waveform generator and the pre-charging module to work based on parameters input by the display screen, the amplitude generator and the waveform generator are used for respectively adjusting the amplitude and the frequency of the output current, so that the ripple current is output to the battery, the direct current output to the battery by the vehicle-mounted charger is combined, the scene of the actual use process of the battery can be better simulated, the output ripple current is finally realized, and the evaluation accuracy of the performance and the service life of the battery is greatly improved.
Drawings
The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of a ripple current generating device of the present utility model.
Marking:
100-a ripple current generating device, 1-MCU,2-ACDC power module, 3-amplitude generator, 4-waveform generator, 5-pre-charge module, 6-display screen, 7-communication module, 8-battery, 51-current sampling circuit.
Detailed Description
The ripple current generation device 100 solves the technical problems that in the prior art, a vehicle-mounted charger can only output direct current and cannot output ripple current, so that the scene of the actual use process of a battery cannot be accurately simulated, further the evaluation of the performance and the service life of the battery is affected, the output ripple current is realized, and the evaluation accuracy of the performance and the service life of the battery is greatly improved.
The technical scheme in the embodiment of the utility model aims to solve the problems, and the overall thought is as follows: MCU1 is based on parameter control ACDC power module 2, amplitude generator 3, waveform generator 4 and the pre-charge module 5 that display screen 6 input work, adjusts the amplitude and the frequency of output current respectively through amplitude generator 3 and waveform generator 4, and then to battery 8 output ripple current, promotes battery 8 performance and life-span's evaluation accuracy.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Referring to fig. 1, a preferred embodiment of a ripple current generating apparatus 100 of the present utility model includes an MCU1, an ACDC power module 2, an amplitude generator 3, a waveform generator 4, a pre-charge module 5, and a display 6;
The MCU1 is configured to generate real-time current data collected by the pre-charging module 5 to display the real-time current data on the display screen 6, receive the amplitude and the frequency set by the display screen 6 to control the operation of the amplitude generator 3 and the waveform generator 4, and control the start and stop of the ACDC power module 2 and the pre-charging module 5, that is, control the operation of the ripple current generating device 100, when in implementation, only the MCU1 capable of achieving this function is selected from the prior art, and is not limited to any model, for example, STM32F103 series MCUs of ST corporation, and control programs are well known to those skilled in the art, which can be obtained by those skilled in the art without performing creative labor; the ACDC power module 2 is used for converting alternating current of a power grid into direct current; the amplitude generator 3 is used for adjusting the amplitude of the output current of the ACDC power module 2; the waveform generator 4 is used for adjusting the frequency of the output current of the amplitude generator 3; the pre-charging module 5 is used for collecting output current, storing and releasing energy and keeping the same voltage level as the battery 8; the display screen 6 is used for controlling the ripple current generating device 100;
The ACDC power supply module 2, the amplitude generator 3, the waveform generator 4 and the pre-charging module 5 are sequentially connected; the MCU1 is respectively connected with the ACDC power supply module 2, the amplitude generator 3, the waveform generator 4, the pre-charging module 5 and the display screen 6.
The display screen 6 is a touch display screen, so that man-machine interaction is facilitated.
The pre-charging module 5 is provided with a current sampling circuit 51 for collecting output current data and feeding the current data back to the MCU1, so as to adjust parameters of the amplitude generator 3 and the waveform generator 4 to form closed-loop control.
The device also comprises a communication module 7, wherein the communication module 7 is connected with the MCU1 and is used for communicating the ripple current generating device 100 with the outside.
The communication module 7 is at least one of a 2G communication module, a 3G communication module, a 4G communication module, a 5G communication module, an NB-IOT communication module, a LORA communication module, a WIFI communication module, a Bluetooth communication module, a ZigBee communication module or a wired communication module.
The working principle of the utility model is as follows:
The pre-charging module 5 is connected with a battery 8, and current parameters including waveform amplitude and waveform frequency input through the display screen 6 are sent to the MCU1; after receiving the current parameters, the MCU1 starts the ACDC power module 2 and the pre-charging module 5, and charges the pre-charging module 5 to the same voltage level as the battery 8 through the battery 8.
The MCU1 controls the amplitude and frequency output by the amplitude generator 3 and the waveform generator 4 according to the current parameters, collects the output current through the current sampling circuit 51, and continuously adjusts the amplitude of the amplitude generator 3 based on the output current until the amplitude of the output current is equal to the set waveform amplitude, so as to form a closed loop.
In summary, the utility model has the advantages that:
The MCU, the ACDC power module, the amplitude generator, the waveform generator, the pre-charging module and the display screen are arranged, and the ACDC power module, the amplitude generator, the waveform generator and the pre-charging module are connected in sequence; the MCU is respectively connected with the ACDC power module, the amplitude generator, the waveform generator, the pre-charging module and the display screen; the MCU controls the ACDC power module, the amplitude generator, the waveform generator and the pre-charging module to work based on parameters input by the display screen, the amplitude generator and the waveform generator are used for respectively adjusting the amplitude and the frequency of the output current, so that the ripple current is output to the battery, the direct current output to the battery by the vehicle-mounted charger is combined, the scene of the actual use process of the battery can be better simulated, the output ripple current is finally realized, and the evaluation accuracy of the performance and the service life of the battery is greatly improved.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.
Claims (5)
1. A ripple current generating device, characterized in that: the system comprises an MCU, an ACDC power module, an amplitude generator, a waveform generator, a pre-charging module and a display screen;
The ACDC power module, the amplitude generator, the waveform generator and the pre-charging module are sequentially connected; the MCU is respectively connected with the ACDC power module, the amplitude generator, the waveform generator, the pre-charging module and the display screen.
2. A ripple current generating device of claim 1, wherein: the display screen is a touch display screen.
3. A ripple current generating device of claim 1, wherein: the pre-charging module is provided with a current sampling circuit.
4. A ripple current generating device of claim 1, wherein: the communication module is connected with the MCU.
5. A ripple current generating device of claim 4, wherein: the communication module is at least one of a 2G communication module, a 3G communication module, a 4G communication module, a 5G communication module, an NB-IOT communication module, a LORA communication module, a WIFI communication module, a Bluetooth communication module, a ZigBee communication module or a wired communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322325332.4U CN220894401U (en) | 2023-08-29 | 2023-08-29 | Ripple current generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322325332.4U CN220894401U (en) | 2023-08-29 | 2023-08-29 | Ripple current generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220894401U true CN220894401U (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322325332.4U Active CN220894401U (en) | 2023-08-29 | 2023-08-29 | Ripple current generating device |
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| Country | Link |
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| CN (1) | CN220894401U (en) |
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2023
- 2023-08-29 CN CN202322325332.4U patent/CN220894401U/en active Active
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