CN214254517U

CN214254517U - Balanced charge-discharge of lithium battery module multichannel maintains testing arrangement

Info

Publication number: CN214254517U
Application number: CN202022923693.5U
Authority: CN
Inventors: 程永松; 林明星; 谢杰; 刘杰
Original assignee: FUZHOU FUGUANG ELECTRONICS CO LTD
Current assignee: FUZHOU FUGUANG ELECTRONICS CO LTD
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-09-21
Anticipated expiration: 2030-12-09

Abstract

The utility model provides a multi-channel balanced charging and discharging maintenance testing device for a lithium battery module, which comprises an upper cover of a battery fixing structural part, wherein the upper cover of the battery fixing structural part is provided with a plurality of fixing holes and a socket; the probes are fixedly arranged in the fixing holes; each of the probes is connected to the socket; the battery module testing device has the advantages that the battery module testing device is simple and safe in the balanced charging and discharging operation process, extra wiring is not needed, extra screws or structural members are not needed for fixing the battery module and the testing tool, no tool is involved, manual operation can be carried out, and operation is convenient and fast.

Description

Balanced charge-discharge of lithium battery module multichannel maintains testing arrangement

Technical Field

The utility model relates to a balanced charge-discharge of lithium cell module multichannel maintains testing arrangement.

Background

With the gradual development of the new energy automobile industry, the requirement for maintaining the vehicle-mounted battery is greater and greater. The lithium battery application industry belongs to emerging industries, and due to the particularity of lithium batteries, the traditional lead-acid storage battery maintenance equipment technology does not meet the balance application of the lithium batteries, most of the existing balance maintenance instruments carry out small-current charge-discharge balance on a battery module through a voltage sampling interface, and the existing balance maintenance instruments do not have high-current bidirectional DC-DC control to realize charge/discharge balance.

And, because battery module volume and structural constraint, often can only carry out the charge-discharge equilibrium through the scheme of clip battery copper bar when wanting the balanced charge-discharge of heavy current, this kind of scheme had both existed and had connect wrong electrode to cause the risk of battery short circuit, also had because the improper contact reason such as clip size leads to the temperature rise too high to cause the problem of potential safety hazard. Therefore, the problem of the efficiency of charge and discharge balance of the battery module is a key problem of whether the new energy industry can continuously develop in industrial production, and how to solve the problem has important significance.

Disclosure of Invention

The to-be-solved technical problem of the utility model lies in providing a balanced charge-discharge maintenance testing arrangement of lithium cell module multichannel, to the simple and easy safety of balanced charge-discharge operation process of battery module, need not extra wiring, need not extra screw or the fixed battery module of structure and test fixture, but do not relate to any instrument bare-handed operation, the simple operation.

The utility model discloses a realize like this: a multi-channel balanced charge-discharge maintenance testing device for a lithium battery module comprises a battery fixing structural part upper cover, wherein a plurality of fixing holes and a socket are formed in the battery fixing structural part upper cover;

the probes are fixedly arranged in the fixing holes; each of the probes is connected to the socket.

The battery fixing structure is characterized by further comprising a battery fixing structure part, wherein an opening is formed in the left side of the battery fixing structure part; one end of the battery fixing structural part is connected to the bottom of the upper cover of the battery fixing structural part.

Furthermore, the battery fixing structure comprises four bakelite plates which are sequentially and fixedly connected to form a hollow rectangular frame with two open ends.

Further, the battery fixed structure still includes an at least elastic contact sheet rubber, elastic contact sheet rubber locates the battery fixed structure inside wall.

Furthermore, a protruding part is arranged in the upper cover of the battery fixing structural part.

Furthermore, the upper cover of the battery fixing structural part is of a transparent structure.

Furthermore, handles are respectively arranged at two ends of the upper cover of the battery fixing structural part, the upper cover of the battery fixing structural part comprises an upper transparent acrylic plate and a lower transparent acrylic plate, and the bottom of the lower transparent acrylic plate is fixedly connected with the upper part of the battery fixing structural part; the upper transparent acrylic plate is fixedly connected to the lower transparent acrylic plate, and the upper transparent acrylic plate and the lower transparent acrylic plate form a hollow structure; the fixed orifices are located on the lower transparent acrylic plate, the socket is located on the upper transparent acrylic plate, the probe is fixed to the fixed orifices, and every one end of the probe is connected to the socket through a cable, the cable is located in the hollow structure, the battery electrode mark is printed on the position, corresponding to the fixed orifices, of the upper transparent acrylic plate, and the handle is located at two ends of the lower transparent acrylic plate.

Further, the probe is a pure copper gold-plated probe.

Further, the socket is an aviation socket.

The utility model has the advantages that:

1. the battery module testing device has the advantages that the battery module testing device is simple and safe in the balanced charging and discharging operation process, extra wiring is not needed, extra screws or structural members are not needed for fixing the battery module and the testing tool, no tool is involved, manual operation can be carried out, and operation is convenient and fast.

2. The test fixture is composed of the bakelite plate and the acrylic plate, so that the test fixture is firm and durable, the battery can be protected from being collided by a heavy object and punctured by a sharp object, and the fully-closed acrylic and bakelite plate structure can prevent short circuit danger possibly existing in the battery pack in a complex environment.

3. The method of adopting the pure copper gold-plated elastic probe as the contact mode of the battery electrode can ensure the reliable contact of the elastic probe and the battery electrode and avoid the possibility of unreliable contact of the probe caused by the difference of copper bars of different battery modules.

4. The problem that the battery module does not have an independent balanced charge-discharge interface can be perfectly solved by the creative idea of probe contact balanced charge-discharge, and compared with the method for balancing the battery module through the voltage acquisition interface low current, the balanced charge-discharge current is improved by times, namely the balanced efficiency of the lithium battery module is improved by times.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is the utility model relates to a balanced charge-discharge of lithium battery module multichannel maintains testing arrangement's explosion chart.

Fig. 2 is the utility model relates to a balanced charge-discharge of lithium battery module multichannel maintains testing arrangement's schematic structure.

Fig. 3 is the utility model relates to a balanced charge-discharge of lithium battery module multichannel maintains testing arrangement's elevation.

Fig. 4 is the utility model relates to a balanced charge-discharge of lithium battery module multichannel maintains testing arrangement's left side view.

Fig. 5 is the utility model relates to a balanced charge-discharge of lithium battery module multichannel maintains testing arrangement's right side view.

Detailed Description

Referring to fig. 1 to 5, the present invention is realized as follows: a multi-channel balanced charge-discharge maintenance testing device for a lithium battery module comprises a battery fixing structural part upper cover 1, wherein a plurality of fixing holes 11 and a socket 12 are formed in the battery fixing structural part upper cover 1, a protrusion part 13 is arranged in the battery fixing structural part upper cover 1, a socket port a1 protruding upwards is formed in a battery module a, if the battery module a is reversely mounted, the protrusion part 13 can be used for enabling the socket port a1 to be arranged at the top of the protrusion part 13, so that the battery module a cannot be inserted, and a user can know that the mounting is reversely mounted; if the battery module a is not reversely mounted, a groove is formed at the corresponding position of the battery module a, and the protrusion 13 can be inserted into the groove; the upper cover 1 of the battery fixing structural part is of a transparent structure, the socket 12 is an aviation socket, and two ends of the upper cover 1 of the battery fixing structural part are respectively provided with a handle 14 (15);

a plurality of probes 2, wherein the probes 2 are fixedly arranged in the fixing holes 11; each probe 2 is connected to the socket 12, the probes 2 are pure copper gold-plated probes, most of the probes except pins and probe welding points are embedded in an acrylic plate, and the firm acrylic plate ensures the fixation of the probes in the use process; in the embodiment, 10 probes are connected in parallel two by two, so that the safety and reliability of the balanced charge and discharge process can be ensured while the overcurrent capacity is increased;

the battery fixing structure part 3 is provided with an opening 35 at the left side of the battery fixing structure part 3; a battery fixed knot constructs 3 end connection to 1 upper cover bottom of battery fixed knot constructs, battery fixed knot constructs 3 and includes four

bakelite boards

31, 32, 33, 34, four

bakelite boards

31, 32, 33, 34 fixed connection in proper order form a cavity, both ends open-ended rectangle frame.

The battery fixing structure member 3 further includes at least one elastic contact rubber sheet (not shown), and the elastic contact rubber sheet is disposed on the inner side wall of the battery fixing structure member 3; elastic contact rubber sheets are arranged on the front circuit board 32 and the rear circuit board 34, and after the battery module a enters the battery fixing structural member 3, the rubber sheets are tightly attached to the battery module a through elasticity, and the battery module a and the battery fixing structural member 3 are fixed together by means of friction.

In another embodiment, the upper cover 1 of the battery fixing structure member includes an upper transparent acrylic plate 16 and a lower transparent acrylic plate 17, and the bottom of the lower transparent acrylic plate 17 is fixedly connected with the upper part of the battery fixing structure member 3; the upper transparent acrylic plate 16 is fixedly connected to the lower transparent acrylic plate 17, the upper transparent acrylic plate 16 and the lower transparent acrylic plate 17 form a hollow structure, and the hollow structure is a cable routing space welded between the probe 2 and the panel aviation socket 12; fixed orifices 11 are located on the transparent inferior gram force board 17 down, socket 12 is located go up on the transparent inferior gram force board 16, probe 2 is fixed extremely fixed orifices 11, and every 2 tip of probe are connected to through cable (not shown in the figure) socket 12, the cable is located in the hollow structure, go up transparent inferior gram force board 16 and establish battery electrode sign (not shown in the figure) corresponding to the seal on the fixed orifices 11 position,

handle

14 and 15 are located transparent inferior gram force board 17's both ends down,

handle

14 and 15 are used for making things convenient for taking of test fixture to put. And the battery module a is charged and discharged in a balanced manner by connecting the aviation socket 12 with a balancing instrument through a balancing cable.

In the using process, the operations of wiring, fixing and the like on the battery module a are not needed. Directly will during the use the utility model discloses the direction cover that the device was pressed the silk screen printing sign is on battery module an, makes whole device wrap up battery module an completely into the back, will the utility model discloses the device is pressed down on the earth can. At this time, each probe 2 is already in contact with the battery electrode, which is very reliable, and the acrylic plate and the bakelite plate completely protect the whole battery module. Two ends of a battery voltage sampling cable are respectively connected to the balancing equipment and the battery module a, two ends of the balancing cable are respectively connected to the testing tool and the balancing instrument equipment, and charging and discharging balance can be achieved by setting balancing charging and discharging parameters after the balancing instrument equipment is powered on. After the balanced charge-discharge is accomplished, take off voltage sampling cable and balanced cable in proper order, about directly picking up

handle

14 and 15 lift up perpendicularly can accomplish battery module with the utility model discloses the device separation.

Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a balanced charge-discharge of lithium cell module multichannel maintains testing arrangement which characterized in that: the battery fixing structure comprises a battery fixing structure upper cover, wherein a plurality of fixing holes and a socket are formed in the battery fixing structure upper cover;

2. The multi-channel balanced charge and discharge maintenance test device for the lithium battery module as claimed in claim 1, wherein: the battery fixing structure is characterized by also comprising a battery fixing structure part, wherein an opening is formed in the left side of the battery fixing structure part; one end of the battery fixing structural part is connected to the bottom of the upper cover of the battery fixing structural part.

3. The lithium battery module multichannel balanced charge-discharge maintenance test device of claim 2, characterized in that: the battery fixing structural part comprises four bakelite plates which are sequentially and fixedly connected to form a hollow rectangular frame with two open ends.

4. The lithium battery module multichannel balanced charge-discharge maintenance test device of claim 2, characterized in that: the battery fixed structure part further comprises at least one elastic contact rubber sheet, and the elastic contact rubber sheet is arranged on the inner side wall of the battery fixed structure part.

5. The multi-channel balanced charge and discharge maintenance test device for the lithium battery module as claimed in claim 1, wherein: a protruding part is arranged in the upper cover of the battery fixing structural part.

6. The multi-channel balanced charge and discharge maintenance test device for the lithium battery module as claimed in claim 1, wherein: the upper cover of the battery fixing structural part is of a transparent structure.

7. The multi-channel balanced charge and discharge maintenance test device for the lithium battery module as claimed in claim 1, wherein: handles are respectively arranged at two ends of the upper cover of the battery fixing structural part, the upper cover of the battery fixing structural part comprises an upper transparent acrylic plate and a lower transparent acrylic plate, and the bottom of the lower transparent acrylic plate is fixedly connected with the upper part of the battery fixing structural part; the upper transparent acrylic plate is fixedly connected to the lower transparent acrylic plate, and the upper transparent acrylic plate and the lower transparent acrylic plate form a hollow structure; the fixed orifices are located on the lower transparent acrylic plate, the socket is located on the upper transparent acrylic plate, the probe is fixed to the fixed orifices, and every one end of the probe is connected to the socket through a cable, the cable is located in the hollow structure, the battery electrode mark is printed on the position, corresponding to the fixed orifices, of the upper transparent acrylic plate, and the handle is located at two ends of the lower transparent acrylic plate.

8. The multi-channel balanced charge and discharge maintenance test device for the lithium battery module as claimed in claim 1, wherein: the probe is a pure copper gold-plated elastic probe.

9. The multi-channel balanced charge and discharge maintenance test device for the lithium battery module as claimed in claim 1, wherein: the socket is an aviation socket.