CN218449516U

CN218449516U - Battery module charging and discharging device

Info

Publication number: CN218449516U
Application number: CN202221515429.0U
Authority: CN
Inventors: 戴刚
Original assignee: Dalian Newstar Tool Manufacture Co ltd
Current assignee: Dalian Newstar Tool Manufacture Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2023-02-03
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a battery module fills discharge device, its characterized in that: the device comprises a shell (1), wherein a charging unit (2), a discharging unit (3) and a data acquisition unit (4) are arranged in the shell (1), a main control unit (5) is further arranged in the shell (1), the main control unit (5) can control and exchange data of the charging unit (2), the discharging unit (3) and the data acquisition unit (4) respectively, a front panel (6) is arranged at the front end of the shell (1), a touch display screen (7) connected with the main control unit (5) is arranged on the front panel (6), a charging and discharging switching relay (8) connected with the main control unit (3) is arranged in the shell (1), and an emergency stop switch (9) connected with the main control unit (3) is arranged on the surface of the shell (1).

Description

Battery module charging and discharging device

Technical Field

The utility model relates to a new energy automobile field, especially a battery module charge-discharge device.

Background

With the continuous development of the related technology of new energy vehicles, the conservation quantity of the new energy vehicles is promoted year by year, and the new energy vehicles tend to replace the traditional vehicles more quickly. The wide application of new energy vehicles and the services related to the new energy vehicles also face greater challenges, and the application requirements of batteries are increasingly expanded. The battery (battery pack) performance of the new energy vehicle can seriously affect the experience of the user. The battery pack is composed of a plurality of modules, each module can generate voltage difference under different environments and use conditions, the overall performance of the battery pack can be influenced by the voltage difference, and even the performance of the battery pack can be influenced by different stored electricity quantities in different modules. Meanwhile, the service life of the battery pack can be directly influenced by the overcharge or the overdischarge of the module. Ideally, it is desirable to keep all parameters (such as output current, voltage, amount of stored electricity, etc.) of all modules in the battery pack within a desired range.

In order to solve the above problem, can adopt the device of multiple difference to detect respectively and adjust single module in the tradition, like universal meter, charging circuit etc. because the parameter that needs to detect and adjust is a plurality of, consequently technical staff just need charge operation, discharge operation and the inspection that does not stop many times, and whole process is very loaded down with trivial details, and work load is great, and work efficiency is lower. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.

Disclosure of Invention

The utility model relates to a solve the above-mentioned not enough that prior art exists, provide a simple structure, design benefit, rationally distributed, with low costs, little and the high battery module charge-discharge device of work efficiency of work load.

The technical solution of the utility model is that: the utility model provides a battery module charge-discharge device which characterized in that: the device include casing 1, be provided with charging unit 2, discharge unit 3 and data acquisition unit 4 in the casing 1, still be provided with main control unit 5 in the casing 1 simultaneously, main control unit 5 can control foretell charging unit 2, discharge unit 3 and data acquisition unit 4 respectively and exchange data, the front end of casing 1 is provided with front panel 6, be provided with the touch-control display screen 7 that links to each other with main control unit 5 on the front panel 6, be provided with the charge-discharge switching relay 8 that links to each other with main control unit 5 in the casing 1 simultaneously, the surface of casing 1 then is provided with the scram switch 9 that links to each other with main control unit 5.

Compared with the prior art, the utility model, have following advantage:

this kind of structural style's battery module charge-discharge device, its simple structure, design benefit, it is rationally distributed, it is to the problem that exists among the relevant parameter control process of traditional battery module, a special device has been designed, the device can conveniently carry out the charge-discharge operation to the battery module, simultaneously carry out real time monitoring to each item parameter of module, relevant parameter (such as electric current, voltage, store electric quantity etc.) homoenergetic in order to guarantee different module groups can keep in a considerable numerical value range, that is to say reduce the difference between different module groups as far as possible, thereby can obtain better battery performance. The battery module detection and adjustment device has the advantages that the working efficiency of battery module detection and adjustment can be effectively improved, the labor intensity is reduced, the manufacturing process is simple, the manufacturing cost is low, the battery module detection and adjustment device has multiple advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.

Drawings

Fig. 1 is a sectional view (front view direction) of an embodiment of the present invention.

Fig. 2 is a sectional view (top view) of an embodiment of the present invention.

Detailed Description

The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1 and 2: the utility model provides a battery module charge-discharge device, it includes a casing 1 as the basis, is provided with charging unit 2, discharge unit 3 and data acquisition unit 4 in this casing 1, still is provided with main control unit 5 in the casing 1 simultaneously, main control unit 5 can control foretell charging unit 2, discharge unit 3 and data acquisition unit 4 respectively and exchange data, the front end of casing 1 is provided with front panel 6, be provided with the touch-control display screen 7 that links to each other with main control unit 5 on the front panel 6, be provided with the charge-discharge switching relay 8 that links to each other with main control unit 5 in the casing 1 simultaneously, the surface of casing 1 then is provided with the scram switch 9 that links to each other with main control unit 5.

The utility model discloses battery module charge-discharge device's working process as follows: the module to be detected and adjusted is connected with the data acquisition unit 4 in the device by using an electric wire, and an instruction is sent to the main control unit 5 through the touch display screen 7 to carry out various operations;

a charging mode: and charging the battery module in a constant current mode by using the charging unit 2, and when the monomer voltage reaches a set threshold value, reducing the charging current mode to continuously charge the battery module, and performing reciprocating circulation until the charging current reaches a minimum threshold value and the highest monomer voltage reaches a set value, and automatically stopping charging.

A discharging mode: and the discharging unit 3 is used for carrying out constant-current discharging on the battery module, and when the voltage of the single battery is set to a specified threshold value, the constant-power discharging is carried out on the battery instead. And automatically stopping discharging until the discharging current is smaller than the threshold value or the lowest cell voltage reaches a set value.

An activation mode: the battery module is subjected to cyclic operation of discharging, standing, charging and standing, and the purpose of reducing the performance difference of the battery monomers in the module is achieved through multiple cyclic operations in the same environment.

And (3) an equalization mode: the user inputs the target voltage of the module, and the equipment automatically judges the charging and discharging operations of the module. The operation is simple, and the requirement on the operation level of a user is reduced.

In the above process, the data acquisition unit 4 transmits the acquired parameters of the module to the main control unit 5, the parameters are checked by a program preset in the main control unit 5, and the charge-discharge switching relay 8 can transmit the electric energy of the charging unit 2 to the battery module during charging and transmit the electric energy of the battery module to the switching switch part of the discharging unit 3 during discharging under the control of the main control unit 5. In a standby state (during non-charging and discharging operations), the switch can also play a role in physically cutting off and isolating the battery module from a circuit in equipment;

when the device is abnormal (such as crash, etc.), a user can quickly press the emergency stop switch 9, so that the device can stop working immediately, and physical isolation among an external power supply, equipment and a battery module is realized.

Claims

1. The utility model provides a battery module charge-discharge device which characterized in that: the device comprises a shell (1), wherein a charging unit (2), a discharging unit (3) and a data acquisition unit (4) are arranged in the shell (1), a main control unit (5) is further arranged in the shell (1), the main control unit (5) can control and exchange data of the charging unit (2), the discharging unit (3) and the data acquisition unit (4) respectively, a front panel (6) is arranged at the front end of the shell (1), a touch display screen (7) connected with the main control unit (5) is arranged on the front panel (6), a charging and discharging switching relay (8) connected with the main control unit (5) is arranged in the shell (1), and an emergency stop switch (9) connected with the main control unit (5) is arranged on the surface of the shell (1).