CCS assembly capable of adjusting tolerance redundancy with power battery

Abstract

The utility model discloses a CCS component capable of adjusting tolerance redundancy with a power battery, which comprises a bar group, an injection molding isolation plate group and an FPC component, each connecting piece aluminum bar on the bar group is correspondingly arranged in an open slot of the injection molding isolation plate group, the connecting piece aluminum bars are electrically connected with a battery cell of the power battery, nickel pieces on the FPC component are connected with each aluminum bar connecting piece, and the FPC component is connected with the aluminum bar connecting piece. The injection molding isolation plate assembly comprises a first injection molding isolation plate and a second injection molding isolation plate, the first injection molding isolation plate and the second injection molding isolation plate are detachably connected through a first clamping assembly, and the first clamping assembly is in clearance fit in the X-axis direction. The utility model discloses a CCS assembly capable of adjusting tolerance redundancy between the CCS assembly and a power battery, which not only can solve the size problem caused by tolerance accumulation in the battery cell production and assembly process, but also can adapt to the tolerance problem of different tools, thereby improving the installation efficiency and realizing the optimized matching between the tolerance redundancy and the power battery.

Description

Technical Field

[0001] The utility model relates to a CCS component, in particular to a CCS component capable of adjusting tolerance redundancy with a power battery. Background Art

[0002] In new energy power battery modules, the Cell Connection System (CCS) plays a crucial role, collecting and monitoring voltage and temperature information from the battery cell assembly. When designing battery cells, a redundant design approach is often employed to accommodate thickness tolerances and reduce stress and deformation between cells. This involves leaving a certain amount of clearance and margin between cells.

[0003] However, during the actual assembly process, due to installation tolerances, the battery cells will have a certain dimensional tolerance range along the X and Y axes. This accumulated tolerance can lead to misalignment between the CCS and the battery cell positions. Therefore, developing an adjustable CCS design is particularly important. Utility Model Content

[0004] In order to solve the deficiencies of the above technologies, the present invention provides a CCS component with adjustable tolerance redundancy with the power battery.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a CCS component with adjustable tolerance redundancy with the power battery, including a bar group, an injection molded isolation plate group and an FPC assembly, each connecting piece aluminum bar on the bar group is correspondingly arranged in the opening groove of the injection molded isolation plate group, the connecting piece aluminum bar is electrically connected to the battery cell of the power battery, the nickel sheet on the FPC assembly is connected to each aluminum bar connecting piece, the injection molded isolation plate assembly includes injection molded isolation plate 1 and injection molded isolation plate 2, injection molded isolation plate 1 and injection molded isolation plate 2 are detachably connected by a clamping assembly 1, and the clamping assembly 1 is clearance-matched along the X-axis direction.

[0006] Furthermore, the injection molded isolation plate assembly also includes an injection molded isolation plate three, and the injection molded isolation plate one and the injection molded isolation plate three are detachably connected via a snap-fit ​​assembly two; the snap-fit ​​assembly two is clearance-fitted along the Y-axis direction.

[0007] Furthermore, the snap-in assembly 1 includes a snap-in component 1 and a snap-in component 2, the snap-in component 1 is connected to any one of the injection molded isolation plate 1 and the injection molded isolation plate 2, the snap-in component 1 has a first clip, and a first snap-in groove corresponding to the first clip is formed on the injection molded isolation plate of the injection molded isolation plate 1 and the injection molded isolation plate 2 that is not connected to the snap-in component 1 is formed, and the first snap-in groove is located on the snap-in component 2.

[0008] Furthermore, the snap-in assembly two includes a snap-in component three and a snap-in component four, the snap-in component three is connected to any one of the injection-molded isolation plate one and the injection-molded isolation plate three, the snap-in component three has a second clip, and a second snap-in groove corresponding to the second clip is formed on the injection-molded isolation plate one and the injection-molded isolation plate three that is not connected to the snap-in component three, and the second snap-in groove is located on the snap-in component four.

[0009] Furthermore, the first buckle and the first clamping groove form a clearance fit of 0.3 mm along the X-axis direction.

[0010] Furthermore, the second buckle and the second clamping groove form a clearance fit of 0.3 mm along the Y-axis direction.

[0011] Furthermore, the first clamping member has two first clamping buckles symmetrical along its center line, and the clamping joints of the two first clamping buckles are clamped in the first clamping grooves at corresponding positions of the second clamping member.

[0012] Furthermore, the third clamping member has a second clamping buckle, and the clamping joint of the second clamping buckle is clamped in the second clamping groove at the corresponding position of the fourth clamping member.

[0013] The utility model discloses a CCS component with adjustable tolerance redundancy between power batteries, which can not only solve the dimensional problem caused by tolerance accumulation during the production and assembly of battery cells, but also adapt to the tolerance problems of different tooling, thereby improving installation efficiency and achieving optimized coordination between tolerance redundancy and power batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the injection-molded isolation plate group of the utility model.

[0015] Figure 2 This is a schematic diagram of the structural disassembly of the injection-molded isolation plate group of Example 1 of the present utility model.

[0016] Figure 3 It is a cross-sectional view of the first clamping component.

[0017] Figure 4 This is a schematic diagram of the structural disassembly of the injection-molded isolation plate group of Example 2 of the present utility model.

[0018] Figure 5 It is a cross-sectional view of the second clamping component.

[0019] In the figure: 200, injection molded isolation plate group; 400, snap-on component one; 500, snap-on component two; 210, injection molded isolation plate one; 220, injection molded isolation plate two; 230, injection molded isolation plate three; 410, snap-on component one; 420, snap-on component two; 510, snap-on component three; 520, snap-on component four; 411, first clip; 421, first clip groove; 511, second clip; 521, second clip groove. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] like Figure 1 As shown, the injection molded isolation plate group 200 includes an injection molded isolation plate 1 210, an injection molded isolation plate 2 220 and an injection molded isolation plate 3 230. The injection molded isolation plate 1 210 and the injection molded isolation plate 2 220 are detachably connected by a snap-fit ​​assembly 1 400. The injection molded isolation plate 1 210 and the injection molded isolation plate 2 220 form two rows of isolation plates. The injection molded isolation plate 1 210 and the injection molded isolation plate 3 230 are detachably connected by a snap-fit ​​assembly 2 500. The injection molded isolation plate 1 210 and the injection molded isolation plate 3 230 form two isolation plates.

[0022] Embodiment 1;

[0023] like Figure 2 The CCS assembly shown in the figure is adjustable and has tolerance redundancy between power batteries, including a bar group, an injection molded isolation plate group 200 and an FPC assembly. The aluminum bars of each connecting piece on the bar group are correspondingly arranged in the open groove of the injection molded isolation plate group 200. The connecting piece aluminum bars are electrically connected to the battery cells of the power battery. The nickel sheets on the FPC assembly are connected to each aluminum bar connecting sheet. In this embodiment, the nickel sheets on the FPC assembly are connected to each aluminum bar connecting sheet by ultrasonic welding to achieve electrical connection performance and realize voltage collection and temperature collection functions at the same time. The injection molded isolation plate group 200 includes an injection molded isolation plate 210 and an injection molded isolation plate 220. The injection molded isolation plate 210 and the injection molded isolation plate 220 are detachably connected by a snap-in assembly 400, and the snap-in assembly 400 is clearance-fitted along the X-axis direction. The snap-in assembly 400 includes a snap-in component 410 and a snap-in component 420. The snap-in component 410 is connected to any one of the injection molded isolation plate 210 and the injection molded isolation plate 220. The snap-in component 410 has a first snap 411. A first snap groove 421 corresponding to the first snap 411 is formed on the injection molded isolation plate 210 and the injection molded isolation plate 220 that is not connected to the snap-in component 410. The first snap groove 421 is located on the snap-in component 420.

[0024] like Figure 3 The first clip 411 shown forms a clearance fit of 0.3mm with the first clip groove 421 along the X-axis. The first clip 410 has two first clips 411 symmetrical along its midline, and the clip joints of the two first clips 411 are clipped into the first clip groove 421 at the corresponding position of the second clip 420.

[0025] The above design realizes the gap design between the two rows of isolation plates through the clips and the snap-in grooves, so as to achieve the length adjustment between the isolation plates in the X-axis direction, thereby solving the problem of being unable to install due to the assembly tolerance of the battery cells.

[0026] Embodiment 2;

[0027] like Figure 4 As shown, based on the first embodiment, the injection molded isolation plate assembly includes an injection molded isolation plate 3 230. The injection molded isolation plate 1 210 and the injection molded isolation plate 3 230 are detachably connected via a second clamping assembly 500; the second clamping assembly 500 is clearance-fitted along the Y-axis. The second clamping assembly 500 includes a third clamping member 510 and a fourth clamping member 520. The third clamping member 510 is connected to either the injection molded isolation plate 1 210 or the injection molded isolation plate 3 230. The third clamping member 510 has a second snap 511. A second snap groove 521 corresponding to the second snap 511 is formed on the injection molded isolation plate 1 210 or the injection molded isolation plate 3 230 that is not connected to the third clamping member 510. The second snap groove 521 is located on the fourth clamping member 520.

[0028] The third clamping member 510 has a second clamping buckle 511, and the clamping joint of the second clamping buckle 511 is clamped into the second clamping groove 521 at the corresponding position of the fourth clamping member 520. The second clamping buckle 511 and the second clamping groove 521 form a clearance of 0.3 mm along the Y-axis direction.

[0029] like Figure 5 As shown, at the same time, the cross-section of the third clamping part 510 is trapezoidal, and the cross-section of the main part of the second clamping groove 521 is also trapezoidal. The third clamping part 510 and the main part of the second clamping groove 521 have a clearance fit of 0.15mm, so the length of the two isolation plates in the X-axis direction can be adjusted. The above design realizes the gap design between the two isolation plates and the clamping groove through the buckle, and realizes the length adjustment of the two rows of isolation plates in the X-axis direction and the Y-axis direction, thereby solving the problem of being unable to install due to the assembly tolerance of the battery cell and the need for accurate adaptation to the different tolerances of the production line equipment.

[0030] This utility model addresses a key issue in the background art, namely, the misalignment of CCS components and battery cells caused by cell assembly tolerances in new energy power battery modules. The following describes how this utility model addresses these issues and the benefits they bring:

[0031] By introducing an adjustable snap-in design into the CCS assembly, the separator plate can be adjusted in length along both the X and Y axes to accommodate variations in cell dimensional tolerances. A clearance-fit snap-in and snap-in slot design allows for flexible movement within a certain range to accommodate tolerances introduced during assembly.

[0032] Solve the assembly tolerance problem: Due to the dimensional tolerances of the battery cells in the X and Y directions, the traditional CCS design may not be able to match them. The adjustable design of the utility model can compensate for these tolerances and ensure that the CCS components can be installed correctly.

[0033] Solve the stress and deformation problems: If there is not enough gap between the battery cells to absorb the tolerance, stress and deformation may occur. Through the adjustable CCS design, these problems can be reduced and the stability of the battery cells can be maintained.

[0034] In summary, the adaptability and compatibility are improved: the adjustable design of the present invention allows the CCS component to adapt to the tolerance requirements of battery cells of different sizes and different production lines, increasing the versatility and adaptability of the component.

[0035] Lower production costs: Because CCS components can accommodate a wide range of tolerances, component waste and rework due to dimensional mismatches are reduced, thereby reducing production costs.

[0036] Improved production efficiency: The flexibility and adjustability of components enable the production line to adapt to different production needs more quickly, thereby improving production efficiency.

[0037] Enhanced product reliability: By reducing stress and deformation between battery cells, the service life of the battery module is extended and the overall reliability of the product is improved.

[0038] Simplified installation and maintenance: The adjustable CCS design simplifies the installation process and reduces maintenance requirements due to installation errors.

[0039] In general, the present invention effectively solves the challenges existing in the background technology through its innovative design concept, and brings significant benefits to the production and use of new energy power battery modules.

[0040] The above-mentioned implementation manner is not a limitation of the present invention, and the present invention is not limited to the above-mentioned examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A CCS assembly with adjustable tolerance redundancy between the battery and the power battery, comprising a tab assembly, an injection-molded isolation plate assembly, and an FPC assembly. The aluminum tabs on the tab assembly are disposed within corresponding openings in the injection-molded isolation plate assembly. The aluminum tabs are electrically connected to the power battery cells. The nickel sheet on the FPC assembly is connected to the aluminum tabs. The assembly is characterized by: The injection molded isolation plate assembly includes an injection molded isolation plate 1 and an injection molded isolation plate 2. The injection molded isolation plate 1 and the injection molded isolation plate 2 are detachably connected via a clamping assembly 1, and the clamping assembly 1 is clearance-fitted along the X-axis direction.

2. The CCS assembly with adjustable tolerance redundancy between power batteries according to claim 1, characterized in that: The injection molded isolation plate assembly also includes an injection molded isolation plate three, and the injection molded isolation plate one and the injection molded isolation plate three are detachably connected via a snap-fit ​​assembly two; the snap-fit ​​assembly two is clearance-fitted along the Y-axis direction.

3. The CCS assembly with adjustable tolerance redundancy between power batteries according to claim 1, characterized in that: The snap-fit ​​assembly 1 includes a snap-fit ​​component 1 and a snap-fit ​​component 2, the snap-fit ​​component 1 is connected to any one of the injection molded isolation plate 1 and the injection molded isolation plate 2, the snap-fit ​​component 1 has a first clip, and a first snap-fit ​​groove corresponding to the first clip is formed on the injection molded isolation plate of the injection molded isolation plate 1 and the injection molded isolation plate 2 that is not connected to the snap-fit ​​component 1 is formed, and the first snap-fit ​​groove is located on the snap-fit ​​component 2.

4. The CCS assembly with adjustable tolerance redundancy between power batteries according to claim 2, characterized in that: The snap-in assembly 2 includes a snap-in component 3 and a snap-in component 4. The snap-in component 3 is connected to any one of the injection-molded isolation plate 1 and the injection-molded isolation plate 3. The snap-in component 3 has a second clip. A second snap-in groove corresponding to the second clip is formed on the injection-molded isolation plate 1 and the injection-molded isolation plate 3 that is not connected with the snap-in component 3. The second snap-in groove is located on the snap-in component 4.

5. The CCS assembly with adjustable tolerance redundancy between power batteries according to claim 3, characterized in that: The first buckle and the first clamping groove form a clearance fit of 0.3 mm along the X-axis direction.

6. The CCS assembly with adjustable tolerance redundancy between power batteries according to claim 4, characterized in that: The second buckle and the second clamping groove form a clearance fit of 0.3 mm along the Y-axis direction.

7. The CCS assembly with adjustable tolerance redundancy between power batteries according to claim 5, characterized in that: The first clamping member is provided with two first clamping buckles symmetrical along its center line, and the clamping joints of the two first clamping buckles are clamped in the first clamping grooves at corresponding positions of the second clamping member.

8. The CCS assembly with adjustable tolerance redundancy between power batteries according to claim 4, characterized in that: The third clamping member is provided with a second clamping buckle, and the clamping joint of the second clamping buckle is clamped in the second clamping groove at the corresponding position of the fourth clamping member.

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