CCS elastic structure applied to power battery

Abstract

The utility model discloses a CCS elastic structure applied to a power battery, which comprises an isolation plate, a plurality of aluminum bar grooves for placing aluminum bars are formed in the isolation plate, every two adjacent aluminum bar grooves are spaced by an isolation gap, and a buckle for limiting and connecting the aluminum bars on one side of the upper surface of the aluminum bars is formed on the back side surface of the isolation plate. A clamping tongue which extends towards the back side face of the isolation plate and abuts against the isolation plate on one side of the lower surface of the aluminum bar is further formed on the isolation plate. According to the utility model, the flatness of the CCS is ensured through structural matching, and particularly, the elastic deformation capability is increased by additionally arranging the clamping tongue, so that the flat state of the pressed CCS after a battery cell product is mounted is realized, the overall flatness of the long-size CCS can be less than or equal to 1mm, the requirements of customers are met, and the performance and the safety of the product in the use process are improved.

Description

Technical Field

[0001] This utility model relates to CCS structures, and more particularly to a CCS elastic structure applied to power batteries. Background Technology

[0002] CCS modules are an important component of new energy power battery modules. They enable the series and parallel connection of lithium-ion batteries in the power battery system, and transmit the electrical energy generated by the cells to the output end of the battery system.

[0003] As consumers demand increasingly longer driving ranges for electric vehicles, automakers need to increase battery capacity to meet this demand. Increasing battery capacity usually means increasing the number of battery cells, and more battery cells require longer CCS (cell-cell junction boxes) to connect them.

[0004] When the length of the CCS is long, it is difficult to guarantee the flatness of the entire CCS due to manufacturing process and material properties. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this invention provides a CCS elastic structure for use in power batteries.

[0006] To solve the above technical problems, the technical solution adopted by this utility model is: a CCS elastic structure for power batteries, including a separator plate, the separator plate forming a plurality of aluminum bar slots for placing aluminum bars, adjacent aluminum bar slots being separated by an isolation gap, a buckle forming on the back side of the separator plate that limits and connects to the upper surface of the aluminum bar, and a latch forming on the separator plate that extends toward its back side and abuts against the lower surface of the aluminum bar.

[0007] Furthermore, the isolation plate includes a main body extending in length and side plates located on the left and right long sides of the main body, respectively. The two side plates extend toward the back side of the isolation plate, and the two side plates are parallel to each other and perpendicular to each other from the main body.

[0008] Furthermore, several positioning reinforcing ribs are formed at the bends of the main body and the side body.

[0009] Furthermore, several aluminum grooves are arranged in a line along the length of the partition plate.

[0010] Furthermore, the isolation partition and the isolation panel are processed as a single unit, and the back and sides of the isolation partition are all processed to form buckles, with multiple buckles in total.

[0011] Furthermore, the latches are machined on the inner ring surface around the outer circumference of the aluminum groove, and there are multiple latches.

[0012] Furthermore, the latch includes an inclined body integrally formed from its connecting side to the free end, and a tongue, with a bend formed between the inclined body and the tongue, and the tongue being parallel to the aluminum bar.

[0013] Furthermore, an abutment block is formed on the side of the tongue facing the aluminum bar to abut against the aluminum bar.

[0014] A CCS elastic structure for power batteries ensures the flatness of the CCS through structural fit, especially by adding a latch to increase the elastic deformation capacity, so as to achieve a flat state of the CCS after the battery cell is installed. This makes the overall flatness of the long CCS ≤1mm, which meets customer requirements and improves the performance and safety of the product during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0017] Figure 3 This is a partial structural schematic diagram of the present invention.

[0018] Figure 4 for Figure 3 The structural diagram at point A in the middle.

[0019] In the diagram: 1. Isolation plate; 2. Aluminum bar; 3. Aluminum bar groove; 4. Isolation interruption; 5. Main body; 6. Side plate; 7. Positioning reinforcing rib; 8. Buckle; 9. Tongue; 10. Inclined main body; 11. Tongue; 12. Abutment block. Detailed Implementation

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

[0021] like Figure 1-4 As shown in the figure, this embodiment relates to the CCS elastic structure applied to power batteries, including a separator plate 1. The separator plate 1 forms a plurality of aluminum bar grooves 3 for placing aluminum bars 2. Adjacent aluminum bar grooves 3 are separated by an isolation gap 4. A buckle 8 is formed on the back side of the separator plate 1, which limits and connects to the upper surface of the aluminum bar 2. A latch 9 is also formed on the separator plate 1, which extends toward its back side and abuts against the lower surface of the aluminum bar 2. The solution of this embodiment is to ensure the flatness of the CCS through structural fit, especially the flatness of the CCS after assembly and during use.

[0022] The isolation plate 1 includes a main body 5 extending in length and two side plates 6 located on the left and right long sides of the main body 5. The side plates 6 are matched with the external power battery mold. The two side plates 6 extend toward the back side of the isolation plate 1. The two side plates 6 are parallel to each other and perpendicular to the main body 5 respectively.

[0023] To enhance the overall structural strength of the isolation plate 1, several positioning reinforcing ribs 7 are formed at the bends of the main body 5 and the side plate 6.

[0024] The CCS structure in this embodiment is designed for a longer length. Therefore, the isolation plate 1 in this embodiment is extended in length as described above, and several aluminum bar grooves 3 are arranged in a line along the length extension direction of the isolation plate 1 to provide a placement position for the aluminum bar 2.

[0025] The isolation partition 4 is integrally processed with the isolation plate 1. Since the spacing of each aluminum bar 2 corresponding to the battery mold may be different in the actual application, the specific width of the isolation partition 4 on the isolation plate 1 in this embodiment is also different. This embodiment does not limit the specific form and size of the isolation partition 4, as long as the isolation partition 4 can be used to separate the aluminum bar groove 3. In addition, the back side of the isolation partition 4 is processed to form a buckle 8. There are multiple buckles 8. By processing the buckles 8 on the isolation partition 4, the aluminum bar 2 can be effectively limited and connected around it.

[0026] Similarly, the latch 9 is machined on the inner ring surface around the outer circumference of the aluminum bar groove 3. There are multiple latches 9, which are also set around the aluminum bar 2 to effectively abut and limit the aluminum bar 2. Based on the above structure, the buckle 8 and the latch 9 limit the aluminum bar 2 on the upper and lower surfaces respectively, effectively preventing the aluminum bar 2 from dislodging. This helps to ensure that the aluminum bar 2 is tightly welded to the battery cell of the external power battery mold, ensuring the stability of the welding, and also ensuring stability under dynamic stress.

[0027] Preferably, the latch 9 includes an inclined body 10 integrally formed from the connecting side to the free end and a tongue 11. A bend is formed between the inclined body 10 and the tongue 11 and the tongue 11 is parallel to the aluminum bar 2. An abutment block 12 is formed on the side of the tongue 11 facing the aluminum bar 2 to abut against the aluminum bar 2.

[0028] Based on the above structure, this embodiment is used in two ways, specifically:

[0029] When the CCS elastic structure of this embodiment is not pressed with the cell of the external power battery mold in the initial state, the aluminum bar 2 exists between the buckle 8 and the latch 9 in a natural non-force-pressed manner. That is to say, the latch 9 does not have elastic deformation at this time, and the separator 1 is in the optimal planar state.

[0030] When the CCS elastic structure of this embodiment is pressed with the cell of the external power battery mold, the CCS elastic structure may be locally warped or deformed during the pressing process. Then, under the pressure of the aluminum bar 2 contact and extrusion, the latch 9 in the area with the warping or deformation tendency will undergo elastic deformation to maintain the planar state of this part of the structure and ensure that the flatness of the entire CCS elastic structure can be controlled within the range of ≤1mm.

[0031] Understandably, when a vehicle is in dynamic driving, the power battery module may be subjected to external forces such as vibration and impact. At this time, the latch 9 acts as a buffer structure to absorb external forces, protect the battery cells of the power battery module from excessive vibration, and improve the reliability and stability of the battery.

[0032] This application discloses a CCS elastic structure for power batteries. The flatness of the CCS is ensured through structural fit, especially by adding a latch to increase the elastic deformation capability, so as to achieve a flat state of the CCS after the battery cell is installed. This makes the overall flatness of the long CCS ≤1mm, which meets customer requirements and improves the performance and safety of the product during use.

[0033] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A CCS elastic structure for use in power batteries, characterized in that: Includes a partition plate (1), which forms a plurality of aluminum bar slots (3) for placing aluminum bars (2), and adjacent aluminum bar slots (3) are separated by a partition gap (4). A buckle (8) is formed on the back side of the partition plate (1) and is connected to the upper surface of the aluminum bar (2) for limiting. A latch (9) is also formed on the partition plate (1) extending toward its back side and abutting against the lower surface of the aluminum bar (2).

2. The CCS elastic structure applied to power batteries according to claim 1, characterized in that: The isolation plate (1) includes a main body (5) extending in length and two side plates (6) located on the left and right long sides of the main body (5). The two side plates (6) extend toward the back side of the isolation plate (1), and the two side plates (6) are parallel to each other and perpendicular to the main body (5).

3. The CCS elastic structure applied to power batteries according to claim 2, characterized in that: Several positioning reinforcing ribs (7) are formed at the bends of the main body (5) and the side plate (6).

4. The CCS elastic structure applied to power batteries according to claim 1, characterized in that: Several of the aluminum bar grooves (3) are arranged in a line along the length of the partition plate (1).

5. The CCS elastic structure applied to power batteries according to claim 1, characterized in that: The isolation partition (4) is integrally processed with the isolation plate (1), and the back side of the isolation partition (4) is processed to form buckles (8), and there are multiple buckles (8).

6. The CCS elastic structure applied to power batteries according to claim 1, characterized in that: The latch (9) is machined on the inner ring surface of the outer ring of the aluminum groove (3), and there are multiple latches (9).

7. The CCS elastic structure applied to power batteries according to claim 6, characterized in that: The latch (9) includes an inclined body (10) integrally formed from its connecting side to its free end and a tongue (11), wherein a bend is formed between the inclined body (10) and the tongue (11) and the tongue (11) is parallel to the aluminum bar (2).

8. The CCS elastic structure applied to a power battery according to claim 7, characterized in that: The tongue (11) forms an abutment block (12) on the side facing the aluminum bar (2) that abuts against the aluminum bar (2).

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