CCS integrated assembly and battery pack

Abstract

The utility model relates to the technical field of battery cells, and discloses a CCS integrated assembly and a battery pack, the CCS integrated assembly comprises a substrate and a conductive busbar, the substrate is provided with a busbar fixing position and an avoidance hole for a pressure acquisition module to pass through, one side, close to the avoidance hole, of the busbar fixing position is provided with a retaining wall, and the conductive busbar is arranged on the retaining wall. The busbar fixing position and the avoiding hole are isolated; a wire passing area used for containing a wire harness is formed between the busbar fixing position and the receding hole, the blocking wall is provided with a first opening communicated with the wire passing area, and the first opening and the receding hole are arranged in a staggered mode. The conductive busbar is installed at the busbar fixing position. According to the CCS integrated assembly, the reliability of the CCS integrated assembly is improved by optimizing the structures between the busbar fixing positions and the avoiding holes. The receding hole provides a receding space for the pressure acquisition module and is separated from the conductive busbar by the retaining wall. And the first opening and the avoidance hole are arranged in a staggered manner, so that the reliability of the CCS integrated assembly and the pressure acquisition module is further improved, and the safety of the battery cell is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric core, concretely relates to a CCS integrated assembly and battery pack. BACKGROUND

[0002] In the current energy storage field, the safety performance of the electric core can be understood in real time by monitoring the temperature, voltage and other indicators of the electric core. However, the sensitivity of these indicators is not enough, and most of them can only play a role in post-alarm, so that the staff cannot timely control the safety of the electric core.

[0003] And the early warning time obtained by monitoring the internal pressure of the electric core can be much earlier than the time required by the existing monitoring technology, which can play a role in early warning, so it is of great significance to design an electric core that can monitor the internal pressure of the electric core. Correspondingly, the structure of the CCS integrated assembly for the electric core also needs to be redesigned to adapt. The pressure collection module usually adopts a metal shell. When the CCS integrated assembly is installed on the electric core and the pressure collection module is close to the busbar, the pressure collection module will cause insulation failure due to being too close to the busbar, thereby unable to ensure the reliability of the safety monitoring of the electric core.

[0004] Therefore, in order to ensure good monitoring of each electric core, it is a problem to be solved for those skilled in the art to design a CCS integrated assembly with reasonable structure and good monitoring effect. INVENTION CONTENTS

[0005] In order to solve the problems of the prior art, the utility model provides a CCS integrated assembly, which optimizes the structure between the busbar fixing position and the avoidance hole to improve the reliability of the CCS integrated assembly.

[0006] The technical effects achieved by the utility model are realized by the following technical aspects:

[0007] In the first aspect, the utility model provides a CCS integrated assembly, which comprises

[0008] The base plate is provided with a busbar fixing position and an avoidance hole for the pressure collection module to pass through, and the side of the busbar fixing position close to the avoidance hole is provided with a baffle to isolate the busbar fixing position and the avoidance hole. The busbar fixing position and the avoidance hole form a wire passing area for placing a wire harness, the baffle is provided with a first opening in communication with the wire passing area, and the first opening is arranged in a staggered manner with the avoidance hole.

[0009] The conductive busbar is installed in the busbar fixing position.

[0010] Preferably, the busbar fixing positions and the avoidance holes are arranged on the substrate along a first direction, and the wire passing area is formed between the busbar fixing positions and the avoidance holes and extends along the first direction.

[0011] Preferably, the substrate is provided with a first region and a second region extending along the first direction, the first region is arranged on both sides of the second region, the second region is provided with a plurality of avoidance holes arranged alternately, the first region is provided with a plurality of busbar fixing positions, the first opening faces the second region, and the busbar fixing positions of different first regions are arranged alternately.

[0012] Preferably, the substrate is provided with an avoidance groove body communicating with the avoidance hole, and the avoidance groove body is provided with a second opening on a side close to the first region, and the second opening faces different first regions alternately.

[0013] Preferably, the wire passing area is provided with a wire passing groove formed by the recess of the substrate.

[0014] Preferably, the conductive busbar comprises a body part, an NTC thermistor arranged on the body part, and a pressure-sensing nickel sheet, two first openings are arranged on the blocking wall, one end of the NTC thermistor and the pressure-sensing nickel sheet respectively passes through different first openings, so that the wire harness is electrically connected in the wire passing area.

[0015] Preferably, the busbar fixing position is a groove structure formed by the recess of the substrate, the blocking wall is a side wall on a side of the busbar fixing position close to the avoidance hole, the substrate is recessed to form an avoidance groove body, the avoidance groove body communicates with the avoidance hole, and the avoidance groove body is provided with a second opening facing the wire passing area.

[0016] Preferably, the utility model further comprises a total output busbar, and the total output busbar is electrically connected with the conductive busbar.

[0017] In the second aspect, the utility model also provides a battery pack, which comprises a plurality of cell units, a wire harness and the CCS integrated assembly of any one of the above, the conductive busbar in the CCS integrated assembly is connected with two adjacent cell units, the cell unit is provided with a pressure acquisition module, the pressure acquisition module passes through the avoidance hole, the wire passing area is arranged with the wire harness, and the pressure acquisition module and the conductive busbar are connected with the wire harness.

[0018] Preferably, the cell unit is further provided with an explosion-proof valve, and the explosion-proof valve is exposed to the avoidance hole.

[0019] In summary, the utility model has at least the following advantages:

[0020] 1. The CCS integrated assembly provided by the utility model, through the structural optimization between the busbar fixing position and the avoidance hole, the reliability of the CCS integrated assembly is improved. Specifically, the avoidance hole is arranged on the substrate to facilitate the pressure acquisition module on the battery cell to pass through, and the avoidance hole provides an avoidance space for the pressure acquisition module. Meanwhile, the busbar fixing position is provided with a baffle on the side close to the avoidance hole to separate the pressure acquisition module and the conductive busbar, and the baffle is provided with a first opening in communication with the wire passing area, so as to facilitate the connection between the conductive busbar and the wire harness. The first opening is arranged in a staggered manner with the avoidance hole, the insulation effect between the pressure acquisition module and the conductive busbar is further improved, the reliability of the CCS integrated assembly and the pressure acquisition module is improved, and the safety of the battery cell is ensured.

[0021] 2. The battery provided by the utility model comprises the CCS integrated assembly, through the optimization of the structure of the CCS integrated assembly, the safe and reliable battery is obtained. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the CCS integrated assembly of the utility model embodiment 1.

[0023] Figure 2 It is Figure 1 a structural enlarged schematic view of part A.

[0024] Figure 3 It is a structural schematic view of the battery of the utility model embodiment 2.

[0025] Figure 4 It is Figure 3 a structural enlarged schematic view of part B.

[0026] Figure 5 It is an explosion structural schematic view of the battery of the utility model embodiment 3.

[0027] Markings in the drawing:

[0028] 100, CCS integrated assembly; 200, battery;

[0029] 10, substrate; 11, busbar fixing position; 111, baffle; 112, first opening; 12, avoidance hole; 121, wire passing groove; 120, wire passing area; 121, avoidance groove body; 122, second opening; 130, first area; 140, second area;

[0030] 20, conductive busbar; 21, body part; 22, NTC thermistor; 23, pressure acquisition nickel sheet; 201, total output busbar;

[0031] 30, pressure acquisition module;

[0032] 40. Battery cell unit; 41. Explosion-proof valve; 42. Electrical connection terminal;

[0033] 50. Wiring harness. Detailed Implementation

[0034] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0035] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0038] Example 1:

[0039] Please see the appendix Figures 1-2 This embodiment provides a CCS integrated component 100, including a substrate 10 and a conductive bus 20. By optimizing the structure of the substrate 10, the CCS integrated component 100 is adapted to the battery cell unit, and the reliability of the battery cell unit safety monitoring is guaranteed.

[0040] Specifically, the substrate 10 has a busbar mounting position 11 for mounting the conductive busbar 20 and a clearance hole 12 for the pressure acquisition module to pass through. The busbar mounting position 11 has a baffle 111 on the side near the clearance hole 12 to isolate the busbar mounting position 11 and the clearance hole 12. A wire-passing area 120 for placing a wire harness is formed between the busbar mounting position 11 and the clearance hole 12. The baffle 111 has a first opening 112 communicating with the wire-passing area 120 to allow the conductive busbar 20 to be electrically connected to the wire harness. Simultaneously, the first opening 112 is offset from the clearance hole 12 to prevent the end of the conductive busbar 20 connected to the wire harness from facing the clearance hole 12, improving insulation performance, ensuring smooth battery cell safety monitoring, and enhancing the reliability of battery cell safety monitoring.

[0041] It should be noted that the clearance hole 12 penetrates the substrate 10 to allow the pressure acquisition module on the battery cell unit to pass through, providing clearance space for the pressure acquisition module on the battery cell unit. The baffle 111 is used to separate the pressure acquisition module from the conductive bus 20 to prevent the pressure acquisition module from failing to insulation due to proximity to the conductive bus 20. This CCS integrated component 100 is also compatible with ordinary non-active safety modules.

[0042] In this embodiment, the busbar fixing position 11 is a groove structure formed by a recess in the substrate 10, and the baffle 111 is a sidewall of the busbar fixing position 11 near the clearance hole 12. In some embodiments, the baffle 111 may be a plate-like structure located between the busbar fixing position 11 and the clearance hole 12 and extending perpendicularly to the substrate 10.

[0043] The substrate 10 has multiple busbar fixing positions 11 and clearance holes 12. The conductive busbar 20 is installed in the busbar fixing position 11 to facilitate connection to adjacent battery cell units, and the clearance holes 12 provide clearance for the pressure acquisition module on each battery cell unit.

[0044] To ensure that the conductive busbar 20 and the clearance hole 12 on the CCS integrated assembly 100 are compatible with the battery cell units, the busbar fixing position 11 and the clearance hole 12 are both distributed on the substrate 10 along a first direction. The first direction is the direction in which the battery cell units are arranged. A wire-passing area 120 is formed between the busbar fixing position 11 and the clearance hole 12, extending along the first direction to facilitate structural electrical connection between the wire harness and the busbar fixing position 11 and the clearance hole 12 on both sides. The connection between the busbar fixing position 11 and the adjacent clearance hole 12 is along a second direction.

[0045] Because the battery cells are arranged closely together, the structure of the substrate 10 is further optimized to facilitate the cooperation between the CCS integrated component 100 and the battery cells. Specifically, the substrate 10 has a first region 130 and a second region 140 extending along a first direction. The first region 130 is located on both sides of the second region 140. The second region 140 has a plurality of staggered clearance holes 12. The first region 130 has a plurality of busbar fixing positions 11, and the first opening 112 of the busbar fixing positions 11 faces the second region 140. The busbar fixing positions 11 in the first region 130 are staggered relative to the busbar fixing positions 11 in the other first region 130.

[0046] It should be noted that a wiring passage 120 is formed between the first region 130 and the second region 140. The first opening 112 of the busbar fixing position 11 faces the second region 140 to facilitate the connection of the conductive busbar 20 installed at the busbar fixing position 11 with the wire harness at the adjacent wiring passage 120. Correspondingly, after the CCS integrated component 100 is connected to the cell unit, the pressure acquisition module passing through the avoidance hole 12 in the second region 140 is connected to the wire harness at the adjacent wiring passage 120 in an alternating manner. In this embodiment, the substrate 10 is recessed to form an avoidance groove 121. The avoidance groove 121 is located above the avoidance hole 12 and communicates with the avoidance hole 12 to form an avoidance space for the pressure acquisition module. At the same time, the avoidance groove 121 has a second opening 122 on the side near the first region 130. The second openings 122 are staggered and open towards different first regions 130, that is, the second openings 122 are sequentially staggered and communicate with the wiring passages 120 on both sides of the second region 140.

[0047] Furthermore, the wiring passage area 120 is provided with a wiring groove 121, which is formed by a recess in the substrate 10. In this embodiment, the wiring groove 121 is formed between the first region 130 and the second region 140 to accommodate the wire harness. It should be noted that the wiring passage area 120 is not the only limitation on the wiring of the CCS integrated component 100. In some embodiments, some wire harnesses can also pass directly over the second region 140.

[0048] Furthermore, the conductive bus 20 includes a body 21, an NTC thermistor 22 disposed on the body 21, and a pressure-sensing nickel plate 23. In this embodiment, two first openings 112 are formed on the baffle 111. One end of the NTC thermistor 22 and the pressure-sensing nickel plate 23 respectively passes through different first openings 112 to facilitate electrical connection with the wire harness of the wiring area 120. This allows the CCS integrated component 100 to not only meet the requirements for cell temperature and voltage acquisition, but also to cooperate with the cell pressure acquisition module to achieve pressure acquisition.

[0049] Based on this, the substrate 10 is also provided with a total output bus 201, which is connected to the conductive bus 20. The total output bus 201 is used to collect the current of the conductive bus 20 on the CCS integrated component 100. In this embodiment, the substrate 10 is provided with two total output buses 201.

[0050] In addition, this embodiment does not impose a single limitation on the size of the clearance hole 12. In some embodiments, the clearance hole 12 is only adapted to the space required by the pressure acquisition module. In other embodiments, the size of the clearance hole 12 is larger than the pressure acquisition module, leaving ample space for the cell explosion-proof valve or other structures on the battery cell.

[0051] Example 2:

[0052] This embodiment provides a battery pack 200 based on Embodiment 1. The battery pack 200 includes a cell unit 40, a wiring harness 50, and a CCS integrated assembly 100. The CCS integrated assembly 100 in this embodiment is described using the CCS integrated assembly 100 provided in Embodiment 1 as an example. For any similarities, please refer to Embodiment 1.

[0053] like Figures 3 to 4 As shown, the battery cell units 40 are arranged along the first direction, and one end of the battery cell unit 40 is provided with a pressure acquisition module 30. When the CCS integrated assembly 100 is installed on the battery cell unit 40, the CCS integrated assembly 100 connects all the battery cell units 40. At the same time, the pressure acquisition module 30 passes through the clearance hole 12. The conductive bus 20 and the pressure acquisition module 30 are both connected to the wiring harness 50 in order to obtain data on pressure, temperature and voltage of the battery cell unit 40.

[0054] It is understood that this embodiment is not the only limitation on the structure of the CCS integrated component 100. In some embodiments, the CCS integrated component 100 used in the battery pack 200 may be obtained by simply replacing or improving the integrated component provided in Embodiment 1.

[0055] Example 3:

[0056] This embodiment provides a battery pack 200 based on embodiment 2. The battery pack 200 includes a cell unit 40, a wiring harness 50, and a CCS integrated assembly 100. The CCS integrated assembly 100 in this embodiment is described using the CCS integrated assembly 100 provided in embodiment 1 as an example. For similarities, please refer to embodiments 1 and 2.

[0057] like Figure 5As shown, the cell unit 40 is also equipped with an explosion-proof valve 41, which is located near the pressure acquisition module 30. In this embodiment, the area of ​​the clearance hole 12 covers the openings of both the pressure acquisition module 30 and the explosion-proof valve 41. When the CCS integrated assembly 100 is installed on the cell unit 40, both the explosion-proof valve 41 and the pressure acquisition module 30 are exposed through the clearance hole 12. The clearance hole 12 accommodates the clearance of both the pressure acquisition module 30 and the explosion-proof valve 41, providing sufficient space for the explosion-proof valve 41, thus achieving a reliable explosion-proof structure while ensuring reliable safety monitoring of the battery pack 200.

[0058] Additionally, the cell unit 40 is also provided with an electrical connection terminal 42, the conductive bus 20 is connected to the electrical connection terminal 42 of the adjacent cell unit 40, and the total output bus 201 is connected to the electrical connection terminal 42 of the cell unit 40 at the end of the battery pack 200.

[0059] The above description is merely an example and illustration of the structure of this utility model, and while the description is quite specific and detailed, it should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these obvious substitutions all fall within the protection scope of this utility model.

Claims

1. A CCS integrated component, characterized in that, include The substrate has a busbar fixing position and a clearance hole for the pressure acquisition module to pass through. The busbar fixing position has a baffle wall on the side near the clearance hole to isolate the busbar fixing position and the clearance hole. A wire passing area for placing a wire harness is formed between the busbar fixing position and the clearance hole. The baffle wall has a first opening communicating with the wire passing area. The first opening is offset from the clearance hole. A conductive busbar is installed at the busbar fixing position.

2. The CCS integrated component according to claim 1, characterized in that, The busbar fixing position and the clearance hole are both distributed on the substrate along the first direction, and the through area is formed between the busbar fixing position and the clearance hole and extends along the first direction.

3. The CCS integrated component according to claim 2, characterized in that, The substrate has a first region and a second region extending along the first direction. The first region is located on both sides of the second region. The second region has a plurality of staggered clearance holes. The first region has a plurality of busbar fixing positions, and the first opening faces the second region. The busbar fixing positions in different first regions are staggered.

4. The CCS integrated component according to claim 3, characterized in that, The substrate has a relief groove that communicates with the relief hole. The relief groove has a second opening on the side near the first region, and the second openings are staggered and open toward different first regions.

5. The CCS integrated component according to claim 1, characterized in that, The wire-passing area is provided with a wire-passing groove formed by the recess of the substrate.

6. The CCS integrated component according to claim 1, characterized in that, The conductive bus includes a body, an NTC thermistor disposed on the body, and a pressure-sensing nickel plate; two first openings are provided on the baffle, and one end of the NTC thermistor and one end of the pressure-sensing nickel plate pass through different first openings to be electrically connected to the wire harness in the wire passing area.

7. The CCS integrated component according to claim 1, characterized in that, The busbar fixing position is a groove structure formed by the recess of the substrate, and the baffle is the side wall of the busbar fixing position near the avoidance hole; the substrate is recessed to form an avoidance groove, the avoidance groove is connected to the avoidance hole, and the avoidance groove is provided with a second opening facing the wire passing area.

8. The CCS integrated component according to any one of claims 1-7, characterized in that, It also includes a total output bus, which is electrically connected to the conductive bus.

9. A battery pack, characterized in that, The device includes several battery cell units, a wire harness, and a CCS integrated assembly as described in any one of claims 1-8. The conductive busbar in the CCS integrated assembly connects two adjacent battery cell units. A pressure acquisition module is provided on each battery cell unit. The pressure acquisition module passes through the clearance hole. The wire harness is placed in the wire passage area. Both the pressure acquisition module and the conductive busbar are connected to the wire harness.

10. The battery pack according to claim 9, characterized in that, The battery cell unit is also equipped with an explosion-proof valve, which is exposed in the clearance hole.

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