CN219626858U - Battery information acquisition device and battery module - Google Patents

Abstract

The utility model discloses a battery information collection device, which is characterized in that it comprises a sampling terminal, a sampling line, and a connecting part, the sampling terminal is pasted on the side of the battery cell, and a plurality of the sampling terminals are connected in parallel through the sampling line and connected with the The connecting part is electrically connected; the connecting part is arranged on the other side of the battery cell. The utility model also discloses a battery module, which is provided with a plurality of battery information collection devices, so that the battery module The information collection is simplified, and multiple sampling terminals are connected on the same sampling line, which makes the wiring of the information sampling line simple and the wiring harness is simple, which effectively improves the reliability of information collection and wiring harness, and better monitors the temperature of each cell in the battery, The deformation data can help improve the temperature uniformity of the battery cell and prolong the life of the battery pack, which has a high promotion value.

Description

A battery information collection device and battery module

technical field

The utility model relates to the technical field of energy storage and power batteries, in particular to a battery information collection device and a battery module.

Background technique

When the energy storage battery pack is charged and discharged, a large amount of heat will be generated. In addition, the battery space is tightly arranged, and the temperature in the energy storage battery pack rises rapidly. However, the local heat in the box is difficult to be discharged evenly, and the operating environment of the battery has a large difference. The long-term operation of the battery pack in an environment with large temperature differences will lead to serious differences in the internal resistance and capacity of the batteries, which may cause some batteries to be overcharged or overdischarged, affect the performance and life of the energy storage system, and seriously cause safety hazards . Therefore, accurate collection and monitoring of the deformation and temperature data of each cell is of great significance to ensure the safe and stable operation of the battery pack. Due to the large number of cells in the energy storage battery pack, it is necessary to collect their deformation and temperature parameters one by one, making wiring difficult and complicated wiring harnesses, which are prone to various problems.

Contents of the invention

The main purpose of the utility model is to propose a battery information collection device and a battery module, aiming to solve the limitations of the existing battery information collection.

In order to achieve the above purpose, the utility model proposes the following technical solutions, including: a battery information collection device, which is characterized in that it includes a sampling terminal, a sampling line, and a connecting part, the sampling terminal is attached to the side of the battery cell, and a plurality of The sampling terminals are connected in parallel through a sampling line, and are electrically connected to the connecting part, and the connecting part is arranged on the other side of the battery core.

Further, the sampling terminal is attached to a large side of the cell.

Further, the sampling surface of the sampling terminal is perpendicular to the connection surface of the connection part.

Further, the sampling terminal is a deformation sensor.

Further, the sampling terminal is a temperature sensor.

Furthermore, the utility model proposes a battery module, which is characterized in that it includes multiple batteries, multiple above-mentioned battery information collection devices, and multiple information collection boards.

Further, the battery cell information collection devices are arranged in groups of two opposite to each other on the large side of the battery cell, and their connecting parts are respectively electrically connected to the information collecting boards on the same side.

To sum up, the utility model has a simple structure, which simplifies the information collection in the battery module, connects multiple sampling terminals on the same sampling line, makes the wiring simple, the wiring harness is simple, and effectively improves the information collection and the reliability of the wiring harness. Better monitor the temperature and deformation data of each battery cell in the battery, help improve the temperature uniformity of the battery cell, prolong the life of the battery pack, and have a high promotion value.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative work.

FIG. 1 is a schematic structural diagram of a battery information collection device;

Fig. 2 is a schematic structural diagram of the battery information collection device in the battery module;

Fig. 3 is a schematic diagram of the structure of the battery information collection device and the battery cells in the battery module;

Explanation of reference numbers:

1-Battery information collection device, 11-Sampling terminal, 12-Sampling line, 13-Connection part, 2-Battery core, 4-Signal collecting board.

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Implementation

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiment of the present utility model, then the directional indications are only used to explain the position in a certain posture (as shown in the accompanying drawing). As shown), the relative positional relationship, movement conditions, etc. between the various components, if the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. Implying their relative importance or implying the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, if the meaning of "and/or" appearing in the whole text includes three parallel schemes, taking "A and/or B" as an example, it includes scheme A, scheme B, or schemes in which both A and B are satisfied . In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , also not within the scope of protection required by the utility model.

Normally, when the energy storage battery pack is charging and discharging, it will generate a lot of heat. In addition, the space of the battery is tightly arranged, and the temperature in the energy storage battery pack rises rapidly. big difference. The long-term operation of the battery pack in an environment with large temperature differences will lead to serious differences in the internal resistance and capacity of the batteries, which may cause some batteries to be overcharged or overdischarged, affect the performance and life of the energy storage system, and seriously cause safety hazards . Therefore, accurate collection and monitoring of the deformation and temperature data of each cell is of great significance to ensure the safe and stable operation of the battery pack. Due to the large number of cells in the energy storage battery pack, it is necessary to collect their deformation and temperature parameters one by one, which makes wiring difficult, complicated wiring harness, and even failure.

In order to solve the above problems, the utility model provides a battery information collection device and a battery module, and Fig. 1 to Fig. 3 are three-dimensional structural diagrams of an embodiment of the utility model.

Please refer to FIG. 1 , a battery information collection device 1, which is characterized in that it includes a sampling terminal 11, a sampling line 12, and a connecting part 13. The sampling terminal 11 is attached to the side of the battery cell 2. In this embodiment, a sampling Three sampling terminals 11 are connected in parallel on the line 12 to collect the deformation signals or temperature signals of the three battery cells 2 arranged side by side, as shown in FIG. The embodiment of the utility model reduces the number of sampling lines 12 to one-third of the original, which greatly simplifies the structure of the wire harness. The sampling line 12 is electrically connected to the connection part 13 , and the connection part 13 is provided on the other side of the battery cell 2 .

Further, the sampling terminal 11 is attached to a large side of the cell 2 .

Further, the sampling surface of the sampling terminal 11 is perpendicular to the connecting surface of the connecting part 13, that is, the sampling surface of the sampling terminal 11 is attached to the large side of the battery cell 2, and the connecting surface of the connecting part 13 is arranged on the small side of the battery cell 2. Side for easy harness routing.

Further, the sampling terminal 11 is a deformation sensor. In general, during the working process of the battery cell 2, the deformation is to expand in the direction perpendicular to the large side of the battery cell 2. Therefore, the deformation sensor sampling terminal 11 is set on the large side of the battery cell 2, and the battery cell 2 can be accurately monitored. deformation situation.

Further, the sampling terminal 11 is a temperature sensor. The battery information collection device 1 can be used to monitor the deformation signal of the battery cell 2 , and can also monitor the temperature signal of the battery cell 2 or other information that needs to be collected.

Furthermore, the utility model proposes a battery module, which is characterized in that it includes a plurality of battery cells 2 , a plurality of the above-mentioned cell information collection devices 1 , and a plurality of information collection boards 4 .

Further, the battery cell information collection devices 1 are arranged in groups of two opposite to each other on the large side of the battery cell 2 , and their connecting parts 13 are respectively electrically connected to the information collection boards 4 on the same side. In general, the connection part 13 and the information collection board 4 can be connected by welding, and after preliminary positioning, the group stacking work of the battery cells 1 can be completed first, and finally the connection part 13 and the information collection board 4 can be welded on the periphery to optimize The production process of battery modules improves efficiency.

The above is only an optional embodiment of the utility model, and therefore does not limit the patent scope of the utility model. Under the utility model concept of the utility model, the equivalent structural transformation made by using the specification of the utility model and the contents of the accompanying drawings , or directly/indirectly used in other relevant technical fields are all included in the patent protection scope of the present utility model.

Claims (7)

1. The battery information acquisition device is characterized by comprising sampling terminals, sampling wires and connecting parts, wherein the sampling terminals are attached to the side surfaces of the battery cells, the sampling terminals are connected in parallel through the sampling wires and are electrically connected with the connecting parts, and the connecting parts are arranged on the other side surfaces of the battery cells.

2. The battery information acquisition device according to claim 1, wherein the sampling terminal is attached to one large side surface of the battery cell.

3. The battery information collecting apparatus according to claim 2, wherein the sampling surface of the sampling terminal is perpendicular to the connection surface of the connection portion.

4. A battery information acquisition device according to claim 3, wherein the sampling terminal is a strain sensor.

5. A battery information acquisition device according to claim 3, wherein the sampling terminal is a temperature sensor.

6. A battery module comprising a plurality of cells, a plurality of battery information collection devices according to any one of claims 1-5, and a plurality of information collection plates.

7. The battery module according to claim 6, wherein the battery information collecting devices are disposed on the large sides of the cells in a pair, and the connection portions of the battery information collecting devices are electrically connected to the information collecting plates disposed on the same side.