CCS module with balanced interface

Abstract

The utility model discloses a CCS module with a balanced interface, and aims to solve the problems that the existing CCS integrated busbar and a sampling line are welded and fixed, the positioning is inaccurate, the welding penetration phenomenon is easy to occur, and the production quality is influenced. The module comprises an isolation substrate and a plurality of conductive aluminum bars, the isolation substrate is provided with a plurality of aluminum bar containing grooves and two PCB containing grooves, isolation parts are arranged between the aluminum bar containing grooves and the PCB containing grooves, two through holes are formed in the lower surfaces of the aluminum bar containing grooves, the conductive aluminum bars are fixedly connected to the interiors of the aluminum bar containing grooves, and the PCB containing grooves are communicated with the isolation parts. The conductive aluminum bar is fixedly connected with a binding post, and the binding post is provided with a balance interface. According to the utility model, the acquisition wire harness is connected with the binding post through the screw, welding is not needed for fixation, the production efficiency of the CCS module can be effectively improved, and the conductive aluminum bar and the isolation substrate are conveniently and rapidly connected through the buckle, so that dislocation in the connection process is prevented, and the production quality is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery covers, and in particular relates to a CCS module with a balanced interface. Background Art

[0002] The CCS integrated busbar, also known as the battery cover assembly, integrates the conductive bus, control circuit (voltage, temperature acquisition) and other components in the battery module into one module, realizing high-voltage series and parallel connection of battery cells, as well as battery temperature sampling, battery cell voltage sampling, and overcurrent fuse functions. It provides temperature and voltage to the BMS system through FPC / PCB and connector components. It is part of the BMS system and is widely used in new energy vehicles and energy storage equipment.

[0003] The existing CCS integrated busbar welds the sampling line to the aluminum busbar. The overall welding efficiency of this manufacturing process is very slow and the positioning is not accurate. At the same time, the aluminum busbar is thin and prone to welding through, which not only reduces the overall stability of the product, but also easily causes cold welding, affecting production quality. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a CCS module with a balanced interface. The module is designed to solve the problem that the existing CCS integrated busbar and sampling line are welded and fixed, the positioning is inaccurate, and welding wear is prone to occur, which affects production quality.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides a CCS module with a balanced interface, which includes an isolation substrate and multiple conductive aluminum bars. The isolation substrate is provided with multiple aluminum bar accommodating grooves and two PCB accommodating grooves. An isolation portion is provided between the aluminum bar accommodating grooves and the PCB accommodating grooves. Two through holes are provided on the lower surface of the aluminum bar accommodating grooves. The conductive aluminum bar is fixedly connected to the inside of the aluminum bar accommodating grooves. A terminal is fixedly connected to the conductive aluminum bar, and a balanced interface is provided on the terminal.

[0008] Preferably, two positioning posts are fixedly connected to the inner bottom wall of the aluminum bar receiving groove, and two positioning holes corresponding to the positioning posts are provided on the conductive aluminum bar.

[0009] Furthermore, the inner side wall of the aluminum bar accommodating groove is fixedly connected with a plurality of clips, the distance between the clips and the bottom wall of the aluminum bar accommodating groove is the same as the thickness of the conductive aluminum bar, the isolation substrate and the clips are integrally formed by vacuum forming, and the clips are used to limit the conductive aluminum bar placed in the aluminum bar accommodating groove.

[0010] Furthermore, the middle portion of the upper surface of the conductive aluminum bar protrudes upward and a groove is formed at the lower portion. The terminal is located inside the groove and is fixed to the conductive aluminum bar by riveting.

[0011] Furthermore, a plurality of positioning rods are fixedly connected to the inner bottom wall of the PCB receiving groove, and the positioning rods are used to limit the PCB board inside the PCB receiving groove.

[0012] Furthermore, the conductive aluminum bar includes a positive aluminum bar, a negative aluminum bar and multiple series-connected aluminum bars, and the aluminum bar storage tank includes a first storage tank, a second storage tank and multiple third storage tanks. The positive aluminum bar is installed inside the first storage tank, the negative aluminum bar is installed inside the second storage tank, and the series-connected aluminum bar is installed inside the third storage tank.

[0013] Furthermore, a through slot penetrating the groove is provided on the conductive aluminum bar, and a gap is left between the terminal and the inner bottom wall of the aluminum bar receiving groove.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model provides a through-groove on the conductive aluminum bar, so that the collection harness is connected to the lower surface of the terminal through screws and then passes through the through-groove, thereby preventing the collection harness from protruding from the upper surface of the conductive aluminum bar, reducing the height space occupied by the collection harness in the module, and effectively reducing the overall height of the CCS module;

[0017] 2. The utility model uses the cooperation of the positioning column and the positioning hole to locate the position of the conductive aluminum bar. After installation, the conductive aluminum bar can be snapped into the inside of the aluminum bar receiving groove through the buckle, so as to realize the quick connection between the conductive aluminum bar and the isolation substrate. At the same time, the collection harness is connected with the terminal through the screw. Since welding is not required for fixation, the production efficiency of the CCS module can be effectively improved. In addition, the conductive aluminum bar and the isolation substrate are connected conveniently and quickly through the buckle, which prevents them from being misaligned during the connection process, thereby improving the production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the explosion structure of the utility model.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0022] Figure 5 It is a schematic diagram of the top view of the conductive aluminum bar of the present invention.

[0023] Figure 6 It is a schematic diagram of the conductive aluminum bar of the present invention when viewed from above.

[0024] Figure 7 It is a structural schematic diagram of a conductive aluminum bar provided with a through slot according to the present invention.

[0025] The markings in the accompanying drawings are: 1. Isolation substrate; 2. Conductive aluminum bar; 3. Aluminum bar accommodating groove; 4. PCB accommodating groove; 5. Isolation part; 6. Through hole; 7. Terminal; 8. Balancing interface; 9. Positioning column; 10. Positioning hole; 11. Buckle; 12. Groove; 13. Positioning rod; 14. Through groove; 201. Positive aluminum bar; 202. Negative aluminum bar; 203. Series aluminum bar; 301. First accommodating groove; 302. Second accommodating groove; 303. Third accommodating groove. DETAILED DESCRIPTION

[0026] This specific embodiment is a CCS module with a balanced interface, and its structural diagram is as follows Figure 1-Figure 7 As shown, the module includes an isolation substrate 1 and multiple conductive aluminum bars 2. The isolation substrate 1 is provided with multiple aluminum bar accommodating grooves 3 and two PCB accommodating grooves 4. An isolation portion 5 is provided between the aluminum bar accommodating grooves 3 and the PCB accommodating grooves 4. Two through holes 6 are provided on the lower surface of the aluminum bar accommodating grooves 3. The conductive aluminum bar 2 is fixedly connected to the inside of the aluminum bar accommodating grooves 3. A terminal 7 is fixedly connected to the conductive aluminum bar 2, and a balancing interface 8 is provided on the terminal 7.

[0027] like Figure 1 and Figure 3 As shown: In this embodiment, two positioning columns 9 are fixedly connected to the inner bottom wall of the aluminum bar accommodating groove 3, and two positioning holes 10 corresponding to the positioning columns 9 are opened on the conductive aluminum bar 2.

[0028] The positioning column 9 and the positioning hole 10 can be used to locate the position of the conductive aluminum bar 2 to prevent it from being misplaced during the connection process.

[0029] like Figure 3 and Figure 4 As shown: In this embodiment, the inner side wall of the aluminum bar accommodating groove 3 is fixedly connected with multiple clips 11, the distance between the clips 11 and the inner bottom wall of the aluminum bar accommodating groove 3 is the same as the thickness of the conductive aluminum bar 2, the isolation substrate 1 and the clips 11 are formed as a whole by vacuum molding, and the clips 11 are used to limit the conductive aluminum bar 2 placed in the aluminum bar accommodating groove 3.

[0030] During installation, place the conductive aluminum bar 2 inside the aluminum bar receiving groove 3. At this time, use force to squeeze the conductive aluminum bar 2 against the buckle 11. Since the isolation substrate 1 and the buckle 11 are integrally formed by vacuum molding, they have a certain elasticity. At this time, the conductive aluminum bar 2 can be clamped into the inside of the aluminum bar receiving groove 3 through the buckle 11, and the connection is convenient and quick.

[0031] like Figure 3 、 Figure 5 and 6 As shown: In this embodiment, the middle part of the upper surface of the conductive aluminum bar 2 protrudes upward and a groove 12 is formed at the lower part. The terminal 7 is located inside the groove 12 and is fixed to the conductive aluminum bar 2 by riveting. In this way, the terminal 7 can be well fixed to the conductive aluminum bar 2 to avoid falling off.

[0032] like Figure 1 and Figure 3 As shown: In this embodiment, a plurality of positioning rods 13 are fixedly connected to the inner bottom wall of the PCB accommodating groove 4 , and the positioning rods 13 are used to limit the PCB board inside the PCB accommodating groove 4 .

[0033] During installation, the PCB board is placed inside the PCB receiving groove 4 and positioned by the positioning rod 13 to prevent the PCB board from moving.

[0034] like Figure 2 and Figure 3 As shown: In this embodiment, the conductive aluminum bar 2 includes a positive aluminum bar 201, a negative aluminum bar 202 and a plurality of series-connected aluminum bars 203, and the aluminum bar storage tank 3 includes a first storage tank 301, a second storage tank 302 and a plurality of third storage tanks 303. The positive aluminum bar 201 is installed inside the first storage tank 301, the negative aluminum bar 202 is installed inside the second storage tank 302, and the series-connected aluminum bar 203 is installed inside the third storage tank 303. When in use, multiple battery cells can be connected in series to form a battery pack for customers.

[0035] like Figure 4 、 Figure 5 and Figure 7 As shown: In this embodiment, a through slot 14 penetrating the groove 12 is provided on the conductive aluminum bar 2, and a gap is left between the terminal 7 and the inner bottom wall of the aluminum bar receiving groove 3.

[0036] The collection harness is connected to the lower surface of the terminal 7 by screws, and then passes through the through slot 14, so as to prevent the collection harness from protruding from the upper surface of the conductive aluminum bar 2, reduce the height space occupied by the collection harness in the module, and effectively reduce the overall height of the CCS module.

[0037] Working principle: When installing, place the conductive aluminum bar 2 inside the aluminum bar receiving groove 3, and use the cooperation of the positioning column 9 and the positioning hole 10 to locate the position of the conductive aluminum bar 2. At this time, force the conductive aluminum bar 2 to squeeze the buckle 11. Since the isolation substrate 1 and the buckle 11 are integrally formed by vacuum molding, they have a certain elasticity. At this time, the conductive aluminum bar 2 can be clamped into the interior of the aluminum bar receiving groove 3 through the buckle 11 until the positive aluminum bar 201, the negative aluminum bar 202 and the multiple series aluminum bars 203 are respectively installed and fixed in the first receiving groove 301 and the second receiving groove 3 02 and multiple third accommodating grooves 303, realize the quick connection of the conductive aluminum bar 2 and the isolation substrate 1, and then place the PCB board inside the PCB accommodating groove 4, and position it through the positioning rod 13, and finally connect the collection harness with the terminal 7 through screws and conduct it with the conductive aluminum bar 2. Since no welding is required for fixing, the production efficiency of the CCS module can be effectively improved, and the conductive aluminum bar 2 and the isolation substrate 1 are connected conveniently and quickly through the buckle 11, which prevents them from being misaligned during the connection process, thereby improving the production quality.

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A CCS module with a balanced interface, comprising an isolation substrate (1) and a plurality of conductive aluminum bars (2), characterized in that: The isolation substrate (1) is provided with a plurality of aluminum bar accommodating grooves (3) and two PCB accommodating grooves (4); an isolation portion (5) is provided between the aluminum bar accommodating grooves (3) and the PCB accommodating grooves (4); two through holes (6) are provided on the lower surface of the aluminum bar accommodating grooves (3); the conductive aluminum bar (2) is fixedly connected to the interior of the aluminum bar accommodating grooves (3); a terminal (7) is fixedly connected to the conductive aluminum bar (2); and a balancing interface (8) is provided on the terminal (7).

2. The CCS module of the balanced interface according to claim 1, characterized in that: Two positioning columns (9) are fixedly connected to the inner bottom wall of the aluminum bar accommodating groove (3), and two positioning holes (10) corresponding to the positioning columns (9) are provided on the conductive aluminum bar (2).

3. The CCS module of the balanced interface according to claim 2, characterized in that: The inner side wall of the aluminum bar receiving groove (3) is fixedly connected with a plurality of clips (11), the distance between the clips (11) and the inner bottom wall of the aluminum bar receiving groove (3) is the same as the thickness of the conductive aluminum bar (2), the isolation substrate (1) and the clips (11) are integrally formed by vacuum molding, and the clips (11) are used to limit the conductive aluminum bar (2) placed in the aluminum bar receiving groove (3).

4. The CCS module of the balanced interface according to claim 3, characterized in that: The middle portion of the upper surface of the conductive aluminum bar (2) protrudes upward and a groove (12) is formed at the lower portion. The terminal (7) is located inside the groove (12) and is fixed to the conductive aluminum bar (2) by riveting.

5. The CCS module of the balanced interface according to claim 4, characterized in that: A plurality of positioning rods (13) are fixedly connected to the inner bottom wall of the PCB accommodating groove (4), and the positioning rods (13) are used to limit the position of the PCB board inside the PCB accommodating groove (4).

6. The CCS module of the balanced interface according to claim 5, characterized in that: The conductive aluminum bar (2) includes a positive aluminum bar (201), a negative aluminum bar (202) and a plurality of series-connected aluminum bars (203); the aluminum bar receiving tank (3) includes a first receiving tank (301), a second receiving tank (302) and a plurality of third receiving tanks (303); the positive aluminum bar (201) is installed inside the first receiving tank (301), the negative aluminum bar (202) is installed inside the second receiving tank (302), and the series-connected aluminum bar (203) is installed inside the third receiving tank (303).

7. The CCS module of the balanced interface according to claim 6, characterized in that: The conductive aluminum bar (2) is provided with a through groove (14) penetrating the groove (12), and a gap is left between the terminal (7) and the inner bottom wall of the aluminum bar receiving groove (3).

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