Novel laboratory battery module test tool

Abstract

The utility model discloses a novel laboratory battery module test tool comprising a box body, a battery pack and a BMS module used for sampling the temperature and voltage of the battery pack are fixedly installed in the box body, the anode of the battery pack is electrically connected with an anode line bank, and the cathode of the battery pack is electrically connected with a cathode line bank. A Hall current sensor sleeves the positive terminal bank, the Hall current sensor is electrically connected with the BMS module, a main relay and a fuse are connected to the positive terminal bank in series, a data sampling port is fixedly embedded in one side of the box body, and the data sampling port is electrically connected with the BMS module; according to the utility model, the battery pack, the main relay, the fuse, the BMS module and the Hall current sensor are all integrated in the box body, so that important parameters such as voltage, current, temperature and the like of a circuit in charging and discharging links can be monitored in real time, the overall size is obviously reduced, and the occupation of excessive space is avoided; and more stable and reliable operation of the system is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery detection equipment technical field, especially a novel laboratory battery module test tool. BACKGROUND

[0002] With the rapid development of new energy industry, the performance requirement of battery module battery pack is higher and higher, at present, when detecting the battery module battery pack, the voltage, current and battery temperature of the charging and discharging process of the battery pack need to be detected and monitored, but the existing detection equipment is relatively scattered, the integration degree is not high, occupies the space, and the safety reliability is poor.

[0003] Therefore, a novel laboratory battery module test tool is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a novel laboratory battery module test tool, thereby solving or at least alleviating one or more of the above problems and other aspects in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the main technical scheme including:

[0006] A novel laboratory battery module test tool, including the box, the inside fixed mounting of battery group and being used to the temperature and voltage sampling of battery group BMS module, the positive pole of battery group electric connection has the positive pole wiring row, the negative pole of battery group electric connection has the negative pole wiring row, the positive pole wiring row is equipped with the hall current sensor, the hall current sensor with BMS module electric connection, the positive pole wiring row is connected with the main relay and the fuse in series, the side fixed embedding of data sampling port of box, data sampling port with BMS module electric connection.

[0007] In a novel laboratory battery module test tool according to the utility model, wherein, the positive pole wiring row with IV-U3 module is connected in parallel between the negative pole wiring row, the main relay with the BMS module between series connection has the auxiliary relay.

[0008] In a novel laboratory battery module test tool according to the utility model, wherein, the battery group is by 16 lithium iron titanate batteries in series.

[0009] In a novel laboratory battery module test tool according to the utility model, wherein, the bottom of box is provided with through -hole, and the through -hole can detachably install the protective rubber plug.

[0010] The utility model discloses a novel battery module test tool for laboratory, wherein, the top of the box is hinged with a box cover, and a door lock is installed on the box cover.

[0011] In the novel battery module test tool for laboratory according to the utility model, the side of the box is fixedly connected with a handle.

[0012] In the novel battery module test tool for laboratory according to the utility model, the side of the box is provided with a heat dissipation hole.

[0013] In the novel battery module test tool for laboratory according to the utility model, a fan is fixedly installed inside the side of the box.

[0014] The utility model at least has following beneficial effects:

[0015] The battery pack, main relay, fuse, BMS module and Hall current sensor are all integrated in the box, which can not only monitor the important parameters such as voltage, current and temperature of the circuit in the charging and discharging link in real time, but also significantly reduce the overall volume, avoid the occupation of too much space, and ensure the more stable and reliable system operation.

[0016] The IV-U3 module with under-voltage and over-voltage protection can further protect the circuit during the charging and discharging process, and further improve the test safety. DETAILED DESCRIPTION

[0017] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a structural schematic view of the novel battery module test tool for laboratory of the utility model;

[0019] Figure 2 It is a structural schematic view when the box cover is installed;

[0020] Figure 3 It is a structural schematic view of another view of the novel battery module test tool for laboratory of the utility model;

[0021] Figure 4 It is a circuit principle block diagram of the utility model.

[0022] Explanation of reference numerals:

[0023] 1, box; 101, box cover; 102, heat dissipation hole; 103, handle; 104, through hole; 105, protective rubber plug; 2, battery pack; 201, positive terminal; 202, negative terminal; 3, main relay; 4, fuse; 5, BMS module; 6, Hall current sensor; 7, IV-U3 module; 701, auxiliary relay 8, fan; 9, data sampling port. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail below with the accompanying drawings and examples, so that the implementation process of the present application for applying technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0025] Please refer to Figures 1 to 4 The present embodiment provides a new type of laboratory battery module test tool, which comprises a box 1, the top of the box 1 is hinged with a box cover 101, the box cover 101 is provided with a door lock, the inside of the box 1 is fixedly installed with a battery pack 2 and a BMS module 5 for sampling the temperature and voltage of the battery pack 2, in the present embodiment, the battery pack 2 is composed of 16 lithium titanate batteries connected in series, the positive terminal of the battery pack 2 is electrically connected with a positive terminal 201, the negative terminal of the battery pack 2 is electrically connected with a negative terminal 202, a Hall current sensor 6 is sleeved on the positive terminal 201, the Hall current sensor 6 is electrically connected with the BMS module 5, a high-precision Hall component is used to collect current data in the main circuit, ensuring the accuracy of the current data, the positive terminal 201 is connected in series with a main relay 3 and a fuse 4, one side of the box 1 is fixedly embedded with a data sampling port 9, the data sampling port 9 is electrically connected with the BMS module 5, the BMS module 5 monitors the voltage and temperature data of each battery, and sends the monitoring data information to the upper computer through the data sampling port 9, at the same time, if an abnormality such as over-temperature, over-voltage, etc. occurs, an instruction is sent to control the main relay 3 to protect the action.

[0026] In the present embodiment, the IV-U3 module 7 is connected in parallel between the positive terminal 201 and the negative terminal 202, and the auxiliary relay 701 is connected in series between the main relay 3 and the BMS module 5, by setting the IV-U3 module 7 with under-voltage and over-voltage protection, the circuit can be further protected during charging and discharging, and the test safety is further improved.

[0027] In the present embodiment, the box 1 is provided with a through hole 104 at the bottom, and a protective rubber plug 105 is detachably installed in the through hole 104, by setting the through hole 104, the external equipment can be easily inserted into the box 1 to collect data from the 16 lithium titanate batteries, and by setting the protective rubber plug 105, the through hole 104 can be sealed when not in use.

[0028] In this embodiment, the side of the box body 1 is fixedly connected with a handle 103, and the handle 103 is arranged to facilitate carrying the box body 1.

[0029] In this embodiment, the side of the box body 1 is provided with a heat dissipation hole 102, and the arrangement facilitates heat dissipation of the parts inside the box body 1.

[0030] In this embodiment, a fan 8 is fixedly installed inside one side of the box body 1, and the arrangement can further improve the heat dissipation effect.

[0031] It is worth noting that in this embodiment, the main relay 3 can be selected from the OMRON G5V-1 series. This series of relays has high reliability, and the contact capacity can meet the on-off control requirements of the main circuit in general battery module test tooling. It has a fast response speed, for example, it can quickly act when controlling the on-off of the battery pack 2, and has good insulation performance, which can ensure the safety and stability of the circuit to a certain extent.

[0032] Fuse 4

[0033] Model example: Littelfuse 0217005.MXP series. This series of fuses has strong breaking capacity, and can quickly cut off the circuit when abnormal conditions such as overcurrent occur in the circuit, effectively protecting the battery pack and subsequent connected electrical elements. For example, when the current exceeds a certain multiple of the rated value, it can be fused in a very short time to prevent damage to the entire test tooling system caused by excessive current.

[0034] The BMS module 5 can be selected from the TI BQ769X0 series. It has high-precision voltage and temperature monitoring functions, and can accurately monitor the terminal voltage and temperature data of multiple battery monomers (16 lithium titanate batteries in this case), and can determine whether abnormal conditions such as overtemperature and overvoltage occur according to the set logic, and then send corresponding control instructions in time, such as sending an open command to the main relay when a battery temperature is too high, to ensure the safe operation of the battery module.

[0035] The Hall current sensor 6 can be selected from the LEM LA55-P series. It uses high-precision Hall components, has good linearity, can accurately collect current data in the main circuit, ensures the accuracy of the collected current values, can adapt to different current range ranges, for example, in this test tooling, whether the battery pack is charging or discharging, the current changes of different sizes can be accurately measured and fed back to the BMS module for subsequent processing, and has good anti-interference ability and can work stably in complex electrical environment.

[0036] In summary: the test tool through BMS module 5 real-time monitoring of the temperature and voltage of the battery pack 2, and the monitoring data through the data sampling port 9 to the host computer. At the same time, the Hall current sensor 6 acquires the current data in the main circuit, to ensure the accuracy of the current data. IV-U3 module 7 and main relay 3, vice relay 701 cooperate in the charging and discharging process to protect the circuit. The setting of the heat dissipation hole 102 and the fan 8 ensures the good heat dissipation of the internal elements of the box 1.

[0037] The battery pack 2, main relay 3, fuse 4, BMS module 5 and Hall current sensor 6 are integrated in the box 1, which can not only monitor the important parameters such as voltage, current and temperature of the circuit in the charging and discharging process, but also significantly reduce the overall volume, avoid the occupation of too much space, and ensure the stable and reliable operation of the system.

[0038] By setting the IV-U3 module 7 with under-voltage and over-voltage protection, the circuit can be further protected during charging and discharging, and the test safety can be further improved.

[0039] The above description shows and describes several preferred embodiments of the utility model, but as described above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein by the above teaching or related technical or knowledge. The modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model should be within the protection scope of the claims attached to the utility model.

Claims

1. A novel battery module test tool for laboratory use, characterized by, The application relates to a battery pack temperature and voltage sampling device, which comprises a box (1), a battery group (2) and a BMS module (5) for sampling the temperature and voltage of the battery group (2) are fixedly arranged in the box (1), a positive electrode wiring harness (201) is electrically connected to the positive electrode of the battery group (2), a negative electrode wiring harness (202) is electrically connected to the negative electrode of the battery group (2), a Hall current sensor (6) is sleeved on the positive electrode wiring harness (201), the Hall current sensor (6) is electrically connected to the BMS module (5), a main relay (3) and a fuse (4) are connected in series on the positive electrode wiring harness (201), a data sampling port (9) is fixedly embedded on one side of the box (1), and the data sampling port (9) is electrically connected to the BMS module (5).

2. The novel battery module test tool for laboratory use according to claim 1, characterized in that: An IV-U3 module (7) is connected in parallel between the positive electrode wiring harness (201) and the negative electrode wiring harness (202), and a sub-relay (701) is connected in series between the main relay (3) and the BMS module (5).

3. The novel battery module test tool for laboratory use according to claim 2, characterized in that: The battery group (2) is composed of 16 lithium titanate batteries connected in series.

4. The novel battery module test tool for laboratory use according to claim 3, characterized in that: A through hole (104) is formed in the bottom of the box (1), and a protective rubber plug (105) is detachably arranged in the through hole (104).

5. The novel battery module test tool for laboratory use according to claim 4, characterized in that: A box cover (101) is hingedly connected to the top of the box (1), and a door lock is arranged on the box cover (101).

6. The novel battery module test tool for laboratory use according to claim 5, characterized in that: A handle (103) is fixedly connected to the side of the box (1).

7. The novel battery module test tool for laboratory use according to claim 6, characterized in that: A heat dissipation hole (102) is formed in the side of the box (1).

8. The novel battery module test tool for laboratory use according to claims 1-7, characterized in that: A fan (8) is fixedly arranged in the side of the box (1).

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