Vehicle-mounted power high-voltage battery acquisition link integrated master-slave plate structure and vehicle

Abstract

The utility model relates to the technical field of vehicle-mounted power batteries, in particular to a vehicle-mounted power high-voltage battery acquisition link integrated master-slave plate structure and a vehicle, and the vehicle-mounted power high-voltage battery acquisition link integrated master-slave plate structure comprises a box body which is internally provided with a battery cell; the exhaust beam is hollow; the battery management system integrated board is fixed in the exhaust beam; the battery management system integrated board comprises a flexible circuit board soft belt, and the flexible circuit board soft belt is led out from the interior of the exhaust beam and is connected with a sampling board of a battery cell in an inserting manner. According to the utility model, a CAN sampling wire harness is canceled, and a hard PCB or a soft FPC is directly coupled to a BMS board (a battery management system integrated board), so that the wire harness connection mode is optimized; the BMS plate is arranged in the hollow exhaust beam, and the flexible circuit board soft belt is led out to be connected with the battery cell, so that the space of the battery pack is more effectively utilized, and the utilization rate of the battery cell integrated whole pack is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted power batteries, in particular to a vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure and a vehicle. Background Art

[0002] At present, the integrated acquisition link solution for vehicle-mounted power batteries mostly adopts the form of hardware circuit PCB boards or soft boards FPC to form interconnections with the slave boards of the BMS management system through the CAN sampling line daisy chain, and extracts real-time data of voltage and temperature from the battery cell end through the NTC integrated on the FPC or PCB sampling board and the welded nickel sheet. Since the final summary and lead-out to the main circuit path requires integration through a large number of signal acquisition harnesses, it is easy to have sampling failures and transmission link delays when the vehicle is superimposed with various driving conditions. In particular, there are coupling defects in the combination of vehicle thermal runaway early warning analysis and cloud big data. Therefore, it is necessary to improve the utilization rate of the entire battery cell integration package and optimize the wiring harness connection form to solve the above problems. How to achieve these two points is a technical problem in the industry. Utility Model Content

[0003] One of the purposes of the utility model is to provide an integrated master-slave board structure for a vehicle-mounted power high-voltage battery acquisition link, aiming to solve the problem of how to improve the utilization rate of the entire battery cell integration package and optimize the wiring harness connection form.

[0004] The utility model provides an integrated master-slave board structure for a vehicle-mounted power high-voltage battery acquisition link, comprising: a box body, in which a battery cell is arranged; an exhaust beam, which is hollow inside; a battery management system integrated board, which is fixed inside the exhaust beam; the battery management system integrated board comprises a flexible circuit board soft belt, which is led out from the inside of the exhaust beam and plugged into a sampling board of the battery cell.

[0005] Optionally, through holes are provided on two opposite sides of the exhaust beam facing the battery cell, and the soft belt of the flexible circuit board is led out from the through holes and plugged into the sampling board of the battery cell.

[0006] Optionally, the through hole is an exhaust hole of the exhaust beam.

[0007] Optionally, the height of the battery management system integrated board is lower than the highest point of the through hole.

[0008] Optionally, the battery management system integrated board is located in the middle section of the exhaust beam in the length direction.

[0009] Optionally, the battery management system integrated board and the internal structure of the exhaust beam are plugged and fixed via a first quick-disassembly component.

[0010] Optionally, the battery management system integrated board further includes a PCB board and an outer frame, and the PCB board and the outer frame are plugged and fixed via a second quick-disassembly component.

[0011] Optionally, the exhaust beam is slidably connected to the box body, and the sliding direction of the exhaust beam is perpendicular to its own length direction.

[0012] Optionally, a protrusion is provided on the exhaust beam, and a slide groove is provided on the box body along a direction perpendicular to the length of the exhaust beam, and the protrusion is slidably matched with the slide groove.

[0013] The second object of the utility model is to provide a vehicle, including the above-mentioned vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure.

[0014] The technical effects achieved by the utility model using the above technical solution are:

[0015] The CAN sampling harness is eliminated, and the harness connection is optimized by directly coupling the hard PCB or soft FPC to the BMS board (battery management system integrated board). The BMS board is built into the hollow exhaust beam and the flexible circuit board soft belt is led out to connect the battery cells, which makes more effective use of the battery pack space and improves the utilization rate of the entire battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A top view of the box and internal structure of the vehicle-mounted power high-voltage battery in the embodiment;

[0017] Figure 2 A three-dimensional diagram of a box body of a vehicle-mounted power high-voltage battery in an embodiment;

[0018] Figure 3 for Figure 2 A magnified view of part A;

[0019] Figure 4 A three-dimensional diagram of the exhaust beam and internal structure of the vehicle-mounted power high-voltage battery in the embodiment;

[0020] Figure 5 for Figure 4 Enlarged view of part B.

[0021] Reference numerals:

[0022] 1. Box body; 11. Slide slot; 12. Slide slot opening;

[0023] 2. exhaust beam; 21. through hole; 22. bump;

[0024] 3. Battery management system integrated board; 31. Flexible circuit board soft belt; 32. PCB board; 33. Outer frame;

[0025] 4. Battery cell. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that, in this document, relational terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0028] Example

[0029] The present application embodiment provides a vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure, referring to Figure 1 , including a box body 1 and an exhaust beam 2 arranged in the box body 1, wherein the two ends of the exhaust beam 2 in the length direction (i.e., the Y direction) are slidably connected to the opposite sides of the box body 1 respectively, and the internal space of the box body 1 on the front and rear sides of the exhaust beam 2 (i.e., the X direction) is used for stacking battery cells 4.

[0030] Reference Figure 2 and Figure 3 The exhaust beam 2 is hollow inside; a row of through holes 21 are respectively provided on two opposite sides of the exhaust beam 2 facing the battery core 4. The exhaust beam 2 in the prior art has exhaust holes, and the exhaust holes of the exhaust beam 2 can be used as the through holes 21, or the through holes 21 independent of the exhaust holes can be provided on the exhaust beam 2. In this embodiment, the exhaust holes of the exhaust beam 2 are preferably used as the through holes 21.

[0031] Reference Figure 4 and Figure 5 , a battery management system integrated board 3 (i.e., BMS integrated board) can also be detachably plugged into the exhaust beam 2. The battery management system integrated board 3 is plugged and fixed to the internal structure of the exhaust beam 2 through a first quick disassembly component. The first quick disassembly component can be a connector such as a buckle or a latch. The middle section of the exhaust beam 2 along its own length direction (Y direction) is where the battery management system integrated board 3 is installed and fixed. The height of the battery management system integrated board 3 along the Z direction is lower than the highest point of the through hole 21, and does not affect the normal exhaust function of the through hole 21 as an exhaust hole.

[0032] Reference Figure 5The battery management system integrated board 3 is composed of a PCB board 32, a flexible circuit board soft belt 31 (i.e., FPC soft belt) and an outer frame 33, wherein the outer frame 33 is preferably an acrylic frame. The PCB board 32 is plugged and fixed to the outer frame 33 through a second quick disassembly component, and the second quick disassembly component can be a connector such as a buckle or a latch. During installation, the PCB board 32 is inserted and fixed into the outer frame 33, and the outer frame 33 is plugged and fixed to the hollow interior of the exhaust beam 2, and the flexible circuit board soft belt 31 is led out from the through hole 21 and plugged into the sampling board of the battery cell 4.

[0033] Reference Figure 3 , the two ends of the exhaust beam 2 along the Y direction are slidably connected with the inner wall of the box body 1: a slide groove 11 along the X direction is provided on the inner wall of the box body 1, and a protrusion 22 that can be inserted into the slide groove 11 is protruded on the surface of the exhaust beam 2, and the protrusion 22 is slidably matched with the slide groove 11. When installing the exhaust beam 2, the distance between the exhaust beam 2 and the battery cell 4 can be adjusted along the X direction. A slide groove opening 12 is provided on the inner wall of the box body 1 along the Y direction, and the slide groove opening 12 is connected to the top of the box body 1, and the slide groove opening 12 is vertically connected to the slide groove 11, and the slide groove opening 12 is used to guide the protrusion 22 into the slide groove 11. By moving the exhaust beam 2 along the X direction, the distance between the exhaust beam 2 and the flexible circuit board soft belt 31 can be adjusted, thereby saving costs.

[0034] The vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure proposed in the embodiment of the utility model has the following technical effects:

[0035] 1. The CAN sampling harness is eliminated, and the hard board PCB or soft board FPC is directly coupled to the BMS board (battery management system integrated board 3), thereby optimizing the harness connection form; the BMS board is built into the hollow exhaust beam 2 and the flexible circuit board soft belt 31 is led out to connect the battery cell 4, thereby realizing more effective use of the battery pack space and improving the utilization rate of the battery cell integrated package;

[0036] 2. By moving the exhaust beam 2 along the X direction, the distance between the battery management system integrated board 3 and the battery cell 4 is adjusted, thereby adjusting the length of the flexible circuit board soft belt 31 of the battery management system integrated board 3 to save costs;

[0037] 3. The flexible circuit board soft belt 31 of the battery management system integrated board 3 can be led out from the exhaust hole of the exhaust beam 2 and connected to the battery cell 4, without the need to design and manufacture a threading hole on the exhaust beam 2, thereby saving the manufacturing cost of the exhaust beam 2;

[0038] 4. The flexible circuit board soft belt 31 is led out through the exhaust hole of the exhaust beam 2 and directly plugged into the sampling board of the battery cell 4, so as to achieve no sampling harness, reduce costs, reduce the risk of manual wiring, and also play a role in preventing mistakes and errors;

[0039] 5. The battery management system integrated board 3 can be quickly plugged and fixed with the internal structure of the exhaust beam 2, and the flexible circuit board soft belt 31 can be quickly plugged and fixed with the outer frame 33, which improves the installation efficiency;

[0040] 6. The battery management system integrated board 3 is installed in the middle section of the exhaust beam 2 in the length direction, which reduces the influence of the edge force of the box body 1 on the battery management system integrated board 3 and makes the circuit system of the battery pack more stable.

[0041] An embodiment of the utility model further provides a vehicle, which includes the above-mentioned vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure. The structural form has been described in detail in this embodiment and will not be repeated here.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated master-slave board structure for a vehicle-mounted power high-voltage battery acquisition link, characterized in that: include: A box body (1) having a battery cell (4) arranged therein; An exhaust beam (2) having a hollow interior; A battery management system integrated board (3) is fixed inside the exhaust beam (2); The battery management system integrated board (3) comprises a flexible circuit board soft belt (31), and the flexible circuit board soft belt (31) is led out from the inside of the exhaust beam (2) and plugged into the sampling board of the battery cell (4).

2. The vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure as claimed in claim 1, characterized in that: Through holes (21) are provided on two opposite sides of the exhaust beam (2) facing the battery cell (4); the flexible circuit board soft belt (31) is led out from the through holes (21) and plugged into the sampling board of the battery cell (4).

3. The vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure as claimed in claim 2, characterized in that: The through hole (21) is an exhaust hole of the exhaust beam (2).

4. The vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure as claimed in claim 3, characterized in that: The height of the battery management system integrated board (3) is lower than the highest point of the through hole (21).

5. The vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure as claimed in claim 3, characterized in that: The battery management system integrated board (3) is located in the middle section of the exhaust beam (2) in the length direction.

6. The vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure as claimed in claim 1, characterized in that: The battery management system integrated board (3) and the internal structure of the exhaust beam (2) are plugged and fixed via a first quick-disassembly component.

7. The vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure as claimed in claim 1, characterized in that: The battery management system integrated board (3) further comprises a PCB board (32) and an outer frame (33); the PCB board (32) and the outer frame (33) are plugged and fixed via a second quick-disassembly component.

8. The vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure according to any one of claims 1 to 7, characterized in that: The exhaust beam (2) is slidably connected to the box body (1), and the sliding direction of the exhaust beam (2) is perpendicular to its own length direction.

9. The vehicle-mounted power high-voltage battery acquisition link integrated master-slave board structure as claimed in claim 8, characterized in that: The exhaust beam (2) is provided with a protrusion (22), and the box body (1) is provided with a slide groove (11) along a direction perpendicular to the length of the exhaust beam (2), and the protrusion (22) is slidably matched with the slide groove (11).

10. A vehicle, characterized in that: It comprises the integrated master-slave board structure of the vehicle-mounted power high-voltage battery acquisition link as described in any one of claims 1-9.

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