BMS (Battery Management System) direct-insertion acquisition device

Abstract

The utility model discloses a BMS (Battery Management System) direct-insertion acquisition device, which comprises an FFC (Flexible Flat Cable) connector, an FFC, a blister tray and a plurality of copper bars distributed at the edges of two sides of the blister tray, the end of the FFC is electrically connected with the FFC connector, the FFC comprises a first branch line and a second branch line, and the first branch line is electrically connected with the second branch line. The branching position of the first branching bar and the branching position of the second branching bar are bent in a Z shape, a plurality of fixing columns are formed on the plastic uptake disc, fixing holes are formed in the copper bars, the fixing columns penetrate through the fixing holes, and the fixing columns and the fixing holes are fixedly connected. And leads of the first branch line and the second branch line are electrically connected with the corresponding copper bars respectively. Compared with the prior art, a nickel sheet and a PCB (printed circuit board) do not need to be used for switching, so that the risk caused by welding can be effectively reduced, meanwhile, the process complexity is reduced, the production efficiency is effectively improved, and the application requirements are better met.

Description

Technical Field

[0001] This utility model relates to battery management equipment, and more particularly to a BMS direct-plug data acquisition device. Background Technology

[0002] Battery management devices typically connect to batteries via FFC flat cables. In the specific connection process, the FFC flat cable and the aluminum busbar are usually connected via nickel strips to collect voltage and temperature signals. However, this connection method has a complex manufacturing process. At the same time, the ends of the FFC flat cable and the connectors also need to be connected via PCBs, which increases the number of soldering points, reduces production efficiency, and results in a certain defect rate. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a BMS direct insertion acquisition device that can reduce the risks caused by welding, reduce process complexity, and improve production efficiency, in order to address the shortcomings of the existing technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0005] A BMS direct-plug data acquisition device includes an FFC connector, an FFC cable, a blister pack, and multiple copper busbars distributed on both sides of the blister pack. The end of the FFC cable is electrically connected to the FFC connector. The FFC cable includes a first branch line and a second branch line. The branching points of the first branch line and the second branch line are both bent in a "Z" shape. Multiple fixing posts are formed on the blister pack, and fixing holes are formed on the copper busbars. The fixing posts pass through the fixing holes and are fixedly connected. The leads of the first branch line and the second branch line are electrically connected to the corresponding copper busbars.

[0006] Preferably, it includes a reinforcing plate, which is stacked with the end of the FFC cable and then inserted into the FFC connector.

[0007] Preferably, the reinforcing plate has the same shape as the end of the FFC cable.

[0008] Preferably, both the reinforcing plate and the end of the FFC cable have positioning holes, which engage with the positioning pins inside the FFC connector.

[0009] Preferably, the fixing post is fixed to the fixing hole by heat riveting.

[0010] Preferably, the junction of the first sub-line and the second sub-line is covered with a protective portion.

[0011] In the BMS direct-plug acquisition device disclosed in this utility model, multiple copper busbars are evenly distributed on both sides of the blister tray. The leads of the first and second branch lines are electrically connected to the corresponding copper busbars, thereby realizing the acquisition of voltage and temperature signals. The FFC cable is a structure that divides the entire cable into the first and second branch lines. The first and second branch lines extend parallel to each other along the length of the blister tray. At the risk points of the first and second branch lines, they are respectively folded three times to form a "Z" shaped bend to facilitate cable laying. At the same time, multiple fixing posts formed on the blister tray pass through fixing holes formed on the copper busbars, and the fixing posts are fixedly connected to the fixing holes. Then, the leads of the first and second branch lines are directly electrically connected to the corresponding copper busbars. Compared with the prior art, this utility model does not require the use of nickel sheets and PCBs for conversion, which can effectively reduce the risks caused by soldering, reduce process complexity, effectively improve production efficiency, and better meet application requirements. Attached Figure Description

[0012] Figure 1 A 3D view of the BMS direct-plug data acquisition device;

[0013] Figure 2 This is a front view of the BMS direct-plug data acquisition device;

[0014] Figure 3 This is a partial enlarged view of the BMS direct-plug data acquisition device;

[0015] Figure 4 This is a partial exploded view of the BMS direct-plug data acquisition device. Detailed Implementation

[0016] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments.

[0017] This utility model discloses a BMS direct-plug data acquisition device, combined with Figures 1 to 4 As shown, it includes an FFC connector 1, an FFC cable 2, a blister pack 3, and multiple copper busbars 4 distributed on both sides of the blister pack 3. The end of the FFC cable 2 is electrically connected to the FFC connector 1. The FFC cable 2 includes a first branch line 20 and a second branch line 21. The branching points of the first branch line 20 and the second branch line 21 are both bent in a "Z" shape. Multiple fixing posts 30 are formed on the blister pack 3, and fixing holes 40 are formed on the copper busbars 4. The fixing posts 30 pass through the fixing holes 40 and the two are fixedly connected. The leads of the first branch line 20 and the second branch line 21 are electrically connected to the corresponding copper busbars 4.

[0018] In the above structure, multiple copper busbars 4 are evenly distributed on both sides of the blister tray 3. The leads of the first branch line 20 and the second branch line 21 are electrically connected to the corresponding copper busbars 4, thereby realizing the acquisition of voltage and temperature signals. The FFC cable 2 is a structure that divides the entire cable into the first branch line 20 and the second branch line 21. The first branch line 20 and the second branch line 21 extend parallel to each other along the length of the blister tray 3. At the critical positions of the first branch line 20 and the second branch line 21, they are folded three times to form a "Z" shaped bend to facilitate the cable laying. At the same time, multiple fixing posts 30 formed on the blister tray 3 pass through fixing holes 40 formed on the copper busbars 4. The fixing posts 30 are fixedly connected to the fixing holes 40. Then, the leads of the first branch line 20 and the second branch line 21 are directly electrically connected to the corresponding copper busbars 4. Compared with existing technologies, this invention eliminates the need for nickel sheets and PCBs for connection, effectively reducing the risks associated with soldering, while also lowering process complexity, improving production efficiency, and better meeting application requirements.

[0019] To protect the ends of the FFC cable 2 and strengthen their tensile strength, please refer to [link to relevant documentation]. Figure 3 and Figure 4 This embodiment includes a reinforcing plate 5, which is stacked with the end of the FFC cable 2 and then inserted into the FFC connector 1.

[0020] In practical applications, the reinforcing plate 5 can be punched into the same shape as the end of the FFC cable 2 so that the two can be reliably fitted together. In this embodiment, the reinforcing plate 5 and the end of the FFC cable 2 have the same shape, and after they are fitted together, they are inserted into the FFC connector 1.

[0021] Based on this, please see Figure 4 Both the reinforcing plate 5 and the FFC cable 2 have positioning holes 50 formed on their ends. These positioning holes 50 engage with positioning posts inside the FFC connector 1. Based on the positioning relationship between the positioning posts inside the FFC connector 1 and the positioning holes 50, the connection reliability between the reinforcing plate 5 and the FFC cable 2 and the FFC connector 1 is enhanced, while also improving the tensile strength of the cable, thus meeting the requirements for direct insertion.

[0022] In practical applications, the FFC connector 1 can be directly inserted into the connector at the BMU end for matching and connection. The gold fingers on the FFC connector 1 contact the internal terminals of the BMU end connector. The voltage and temperature signals collected by each lead in the first branch line 20 and the second branch line 21 are directly transmitted to the BMU end through the FFC connector 1.

[0023] In this embodiment, the fixing post 30 and the fixing hole 40 are riveted together. Specifically, the fixing post 30 and the fixing hole 40 are riveted together.

[0024] As a preferred embodiment, a protective portion 6 is provided at the junction of the first dividing line 20 and the second dividing line 21. The protective portion 6, by covering the junction, restricts the dividing position of the first dividing line 20 and the second dividing line 21, preventing the dividing line from being torn apart by external force.

[0025] For easier wiring instructions, please refer to [link / reference]. Figure 2 The first sub-line 20 and the second sub-line 21 are arranged in parallel, and both the first sub-line 20 and the second sub-line 21 extend along the length direction of the blister tray 3.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. All modifications, equivalent substitutions or improvements made within the technical scope of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A BMS direct-plug data acquisition device, characterized in that, The device includes an FFC connector (1), an FFC cable (2), a blister pack (3), and multiple copper busbars (4) distributed on both sides of the blister pack (3). The end of the FFC cable (2) is electrically connected to the FFC connector (1). The FFC cable (2) includes a first branch line (20) and a second branch line (21). The branching points of the first branch line (20) and the second branch line (21) are both bent in a "Z" shape. Multiple fixing posts (30) are formed on the blister pack (3). Fixing holes (40) are formed on the copper busbars (4). The fixing posts (30) pass through the fixing holes (40) and are fixedly connected. The leads of the first branch line (20) and the second branch line (21) are electrically connected to the corresponding copper busbars (4).

2. The BMS direct-plug data acquisition device as described in claim 1, characterized in that, It includes a reinforcing plate (5), which is stacked with the end of the FFC cable (2) and then inserted into the FFC connector (1).

3. The BMS direct-plug data acquisition device as described in claim 2, characterized in that, The reinforcing plate (5) has the same end shape as the FFC cable (2).

4. The BMS direct-plug data acquisition device as described in claim 2, characterized in that, The reinforcing plate (5) and the FFC cable (2) both have positioning holes (50) formed on their ends, and the positioning holes (50) engage with the positioning pins inside the FFC connector (1).

5. The BMS direct-plug data acquisition device as described in claim 1, characterized in that, The fixing post (30) is fixed to the fixing hole (40) by heat riveting.

6. The BMS direct-plug data acquisition device as described in claim 1, characterized in that, The junction of the first sub-line (20) and the second sub-line (21) is covered with a protective part (6).

7. The BMS direct-plug data acquisition device as described in claim 1, characterized in that, The first sub-line (20) and the second sub-line (21) are arranged in parallel, and both the first sub-line (20) and the second sub-line (21) extend along the length direction of the blister tray (3).

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