CCS busbar with novel nickel sheet connecting structure

Abstract

A CCS busbar with a novel nickel sheet connecting structure comprises a blister bottom box, a conductive plate assembly, a wire harness, and a connecting nickel sheet. The blister bottom box comprises a bottom box body, a plurality of first accommodating grooves provided on the bottom box body and used for accommodating the conductive plate assembly, and a second accommodating groove provided on the bottom box body and used for accommodating the wire harness. A connecting protrusion is provided on the first accommodating groove. The connecting nickel sheet comprises a clamping groove clamped and fixed with the connecting protrusion, and two lap joints respectively used for bearing the conductive plate assembly and the wire harness. The connecting nickel sheet is in a U-shaped structure in the extension direction of the wire harness, and the connecting nickel sheet is connected and fixed on the first accommodating groove by clamping the connecting protrusion through the clamping groove. The connecting nickel sheet is welded and fixed at both ends with the conductive plate assembly and the wire harness respectively.

Description

Technical Field

[0001] This utility model belongs to the field of CCS busbar technology, and in particular to a CCS busbar with a novel nickel sheet connection structure. Background Technology

[0002] With the rapid development of new energy fields such as electric vehicles and energy storage power stations, the space requirements for power battery packs and energy storage battery packs are becoming increasingly compact, and the requirements for electrical integration and reliability are becoming increasingly stringent.

[0003] The integrated acquisition busbar is a highly integrated device for battery power series circuit and battery signal acquisition. The existing CCS mainly consists of wire harness, PFC component and conductive busbar connecting aluminum busbar, among which nickel sheet, NTC resistor, connector, etc. are used to fix and acquire battery parameters.

[0004] However, most existing nickel sheets are flat, making it difficult to precisely fix their position during welding. This can easily lead to skewed welding due to the nickel sheet being misaligned, resulting in an unstable structural connection and affecting the overall performance of the product.

[0005] For example, in the invention patent with publication number CN116885397B, the nickel sheet has a flat structure, which makes it difficult to position accurately during welding and fixing. This can easily lead to skewed weld points, affecting the final welding effect and consequently the overall connection structure of the product. Summary of the Invention

[0006] In view of this, the present invention provides a CCS busbar with a novel nickel sheet connection structure to solve the above problems.

[0007] A CCS busbar with a novel nickel-plate connection structure includes a blister pack, a set of conductive plate assemblies on the blister pack, a wire harness on the blister pack, and a plurality of connecting nickel plates on the blister pack and respectively connected to the conductive plate assemblies and the wire harness. The blister pack includes a pack body, a plurality of first receiving slots located at the sidewalls of both ends of the pack body, and a second receiving slot located at the center of the pack body and communicating with the first receiving slots. Each first receiving slot includes a groove and at least one connecting protrusion located at the end of the groove and facing the second receiving slot. The connecting protrusion is a rectangular protrusion located on the groove and facing the second receiving slot. The connecting nickel plates have a Z-shaped cross-section in the extension direction of the wire harness. Each connecting nickel plate includes a nickel plate body, a snap-fit ​​groove on the nickel plate body, and two overlapping portions located at both ends of the nickel plate body. The snap-fit ​​groove is adapted to the size and shape of the connecting protrusion. The two overlapping portions are respectively connected to the conductive plate assembly and the wire harness.

[0008] Furthermore, the first receiving slot is connected to the second receiving slot.

[0009] Furthermore, the bottom box body is a rectangular box.

[0010] Furthermore, the plurality of first receiving slots are evenly distributed on the two end sidewalls of the bottom box body, and the plurality of first receiving slots on the two end sidewalls of the bottom box body are staggered in the extension direction of the wire harness.

[0011] Furthermore, the conductive plate assembly includes an input electrode connector connected to one end of the blister base, an output electrode connector connected to the other end of the blister base, and a plurality of series connectors located between the input electrode connector and the output electrode connector, wherein the input electrode connector and the output electrode connector are respectively located at both ends of the blister base.

[0012] Furthermore, the conductive plate assembly is made of aluminum alloy.

[0013] Furthermore, the connecting nickel sheet is located between the conductive plate assembly and the wire harness, with one end connected to the conductive plate assembly and the other end connected to the wire harness.

[0014] Furthermore, the connecting nickel sheet is vertically connected to the connecting protrusion.

[0015] Furthermore, the conductive plate assembly is connected and fixed in the blister box by heat fusion.

[0016] Furthermore, the connecting nickel sheet, the conductive plate assembly, and the wire harness are welded and fixed together.

[0017] Compared with existing technologies, the CCS busbar with a novel nickel sheet connection structure provided by this utility model accommodates the conductive plate assembly and the wire harness respectively through the first and second receiving grooves. By creating the connection protrusion in the first receiving groove, the connecting nickel sheet can be directly snapped and fixed onto the connection protrusion through the slot, and the conductive plate assembly and the wire harness are respectively overlapped by the overlapping portions located at both ends of the connecting nickel sheet. This allows the connecting nickel sheet to be more stably connected and fixed on the first receiving groove, avoiding misalignment and misalignment during subsequent welding, thus preventing uneven welding. Furthermore, compared with the previous flat nickel sheet structure, the connecting nickel sheet adopts a U-shaped structure, allowing it to be directly snapped and fixed onto the connection protrusion during welding, improving work efficiency and reducing labor costs. Attached Figure Description

[0018] Figure 1 A schematic diagram of the CCS busbar with a novel nickel sheet connection structure provided by this utility model.

[0019] Figure 2 for Figure 1 An exploded structural diagram of a CCS busbar with a novel nickel sheet connection structure.

[0020] Figure 3 for Figure 2 A partially enlarged schematic diagram of the CCS busbar with a novel nickel sheet connection structure at point A.

[0021] Figure 4 for Figure 2 A partially enlarged schematic diagram of the CCS busbar with a novel nickel sheet connection structure at point B.

[0022] Figure 5 for Figure 1 A schematic diagram of the connecting nickel sheet structure of the CCS busbar with a novel nickel sheet connection structure. Detailed Implementation

[0023] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0024] like Figures 1 to 5The diagram shown is a structural schematic of a CCS busbar with a novel nickel-plate connection structure provided by this utility model. The CCS busbar with the novel nickel-plate connection structure includes a blister pack 10, a set of conductive plate assemblies 20 disposed on the blister pack 10, a wire harness 30 disposed on the blister pack 10, and multiple connecting nickel plates 40 connecting the conductive plate assemblies 20 and the wire harness 30. The CCS busbar with the novel nickel-plate connection structure also includes other functional modules, such as assembly components for installing the CCS busbar with the novel nickel-plate connection structure, etc., which should be known to those skilled in the art and will not be described in detail here.

[0025] like Figure 1 As shown, the blister base 10 is used to carry the conductive plate assembly 20, the wire harness 30, and the connecting nickel sheet 40. The blister base 10 includes a base body 11, a plurality of first receiving grooves 12 formed on the side walls at both ends of the base body 11 for accommodating the conductive plate assembly 20, and a second receiving groove 13 formed at the center of the base body 11 for accommodating the wire harness 30. The blister base 10 refers to a box-shaped blister product with a lid and bottom connected, which should be well known to those skilled in the art and will not be described in detail here.

[0026] The base box body is used to support the conductive plate assembly 20, the wire harness 30, and the connecting nickel sheet 40, and it is a rectangular box.

[0027] The first receiving groove 12 is used to accommodate the conductive plate assembly 20, and it is a rectangular groove. Multiple first receiving grooves 12 are evenly distributed on both end sidewalls of the base box body 11, and the multiple first receiving grooves 12 on the end sidewalls of the base box body 11 are staggered in the extension direction of the wire harness 30. The number of first receiving grooves 12 can be set according to actual needs, as long as it can just accommodate the conductive plate assembly 20; no specific limit is made here.

[0028] like Figure 5 As shown, each of the first receiving slots 12 includes a slot body 121 and at least one connecting protrusion 122 formed at the end of the slot body 121 and facing the side of the second receiving slot 13.

[0029] The groove 121 is used to accommodate the conductive plate assembly 20. It is a rectangular groove, and the depth of the groove 121 is equivalent to the thickness of the conductive plate assembly 20 so that the groove 121 can fit the conductive plate assembly 20 precisely.

[0030] The connecting protrusion 122 is used to snap and position the connecting nickel sheet 40. It is a rectangular protrusion formed on the side of the groove 121 facing the second receiving groove 13.

[0031] like Figure 2 As shown, the second receiving groove 13 is used to receive the wire harness 30. It is located at the center of the bottom box body 11, and its two sides are connected to the first receiving groove 12.

[0032] like Figure 2 As shown, the conductive plate assembly 20 includes an input electrode connector 21 connected to one end of the blister base 10, an output electrode connector 22 connected to the other end of the blister base 10, and a plurality of series electrode connectors 23 located between the input electrode connector 21 and the output electrode connector 22. The conductive plate assembly 20 is connected and fixed to the blister base 10 by heat fusion. The conductive plate 20 is a prior art technology, and the electrode connector is described in the invention patent with publication number CN116995369A, so it will not be described in detail here.

[0033] The input electrode connector 21, the output electrode connector 22, and the series electrode connector 23 are all made of aluminum alloy. The input electrode connector 21 and the output electrode connector 22 are located at opposite ends of the blister pack 10. It is easy to see that the first receiving groove 12 for accommodating the input electrode connector 21 and the output electrode connector 22 has one connecting protrusion 122. The first receiving groove 12 for accommodating the series electrode connector 23 has two connecting protrusions 122, and the two connecting protrusions 122 located on the same side of the first receiving groove 12 are spaced apart and not connected to each other. The number of first receiving grooves 12 is equal to the sum of the number of input electrode connectors 21, output electrode connectors 22, and series electrode connectors 23.

[0034] like Figure 3 As shown, the wire harness 30 is connected to the connecting nickel plate 40. The wire harness 30 is used to cooperate with the connecting nickel plate 40 to realize the electrical connection of the conductive plate assembly 20 and transmit the voltage and temperature signals inside the conductive plate 20 to the external connection port. It is easy to imagine that the wire harness 30 is provided with multiple connection points (not shown) to connect to the connecting nickel plate 40. The wire harness 30 integrates a connector, a temperature sensor, and a voltage acquisition circuit, which should be a prior art and will not be described in detail here.

[0035] like Figure 4As shown, the connecting nickel plate 40 is located between the conductive plate assembly 20 and the wire harness 30, with one end connected to the conductive plate assembly 20 and the other end connected to the wire harness 30. The connecting nickel plate 40 is used to realize the circuit connection between the conductive plate assembly 20 and the wire harness 30. The number of connecting nickel plates 40 is twice the number of the first receiving slots 12 minus one. Specifically, each series electrode connector 23 is connected to two connecting nickel plates 40, and the input electrode connector 21 and the output electrode connector 22 are each connected to one connecting nickel plate 40.

[0036] The connecting nickel sheet 40 includes a nickel sheet body 41, a snap-fit ​​groove 42 located on the nickel sheet body 41, and two overlapping portions 43 located at both ends of the nickel sheet body 41.

[0037] The nickel sheet body 41 is used to connect the conductive plate assembly 20 and the wire harness 30, and it is shaped like a zigzag in the cross section of the wire harness 30 in the extending direction.

[0038] The snap-fit ​​groove 42 is used to snap the connecting protrusion 122, and it is a rectangular groove. The size and shape of the snap-fit ​​groove 42 and the connecting protrusion 122 are adapted to each other. When the snap-fit ​​groove 41 is engaged with the connecting protrusion 122, the nickel sheet body 41 is abutted by the two end sidewalls of the connecting protrusion 122 to restrict its movement in a direction other than the extension direction of the wire harness 30. The nickel sheet body 41 is perpendicularly connected to the connecting protrusion 122, and therefore the nickel sheet body 41 is also perpendicularly connected to the conductive plate assembly 20.

[0039] The two overlapping portions 43 are respectively used to overlap the conductive plate assembly 20 and the wire harness 30. Each overlapping portion 43 is a rectangular plate. Specifically, during assembly, the snap-fit ​​groove 42 is first aligned with the connecting protrusion 122, thereby sequentially snapping the connecting nickel sheet 40 into the first receiving groove 12. Then, the conductive plate assembly 20 and the wire harness 30 are respectively connected to the overlapping portions 43 at both ends of the connecting nickel sheet 40, and then soldered. Compared to the previously used flat connecting nickel sheet 40, this embodiment uses a U-shaped connecting nickel sheet 40, making the connection positioning more reliable and reducing the risk of misaligned soldering of the connecting nickel sheet 40.

[0040] Compared with the prior art, the CCS busbar with a novel nickel sheet connection structure provided by this utility model accommodates the conductive plate assembly 20 and the wire harness 30 respectively through the first and second receiving grooves 12 and 13. By creating the connecting protrusion 122 on the first receiving groove 12, the connecting nickel sheet 40 can be directly snapped and fixed onto the connecting protrusion 122 through the slot 42, and the conductive plate assembly 20 and the wire harness 30 are respectively overlapped by the overlapping portions 43 located at both ends of the connecting nickel sheet 40. This allows the connecting nickel sheet 40 to be more stably connected and fixed on the first receiving groove 12, avoiding misalignment and misalignment during subsequent welding. Furthermore, compared with the previous flat nickel sheet structure, the connecting nickel sheet 40, by adopting a U-shaped structure, can be directly snapped and fixed onto the connecting protrusion 122 during welding, thus improving work efficiency and reducing labor costs.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A CCS busbar with a novel nickel sheet connection structure, characterized in that: The CCS busbar with a novel nickel sheet connection structure includes a blister pack, a set of conductive plate assemblies on the blister pack, a wire harness on the blister pack, and multiple connecting nickel sheets on the blister pack and respectively connected to the conductive plate assemblies and the wire harness. The blister pack includes a pack body, multiple first receiving slots located at multiple sidewalls at both ends of the pack body, and a second receiving slot located at the center of the pack body and communicating with the first receiving slots. The first receiving slot includes a groove body and at least... A connecting protrusion is formed at the end of the groove and facing the second receiving groove. The connecting protrusion is a rectangular protrusion formed on the groove and facing the second receiving groove. The cross-sectional shape of the connecting nickel sheet in the extension direction of the wire harness is Z-shaped. The connecting nickel sheet includes a nickel sheet body, a snap-fit ​​groove on the nickel sheet body, and two overlapping portions located at both ends of the nickel sheet body. The snap-fit ​​groove is adapted to the size and shape of the connecting protrusion. The two overlapping portions are respectively connected to the conductive plate assembly and the wire harness.

2. The CCS busbar with a novel nickel sheet connection structure as described in claim 1, characterized in that: The first receiving slot is connected to the second receiving slot.

3. The CCS busbar with a novel nickel sheet connection structure as described in claim 1, characterized in that: The bottom box body is a rectangular box.

4. The CCS busbar with a novel nickel sheet connection structure as described in claim 1, characterized in that: Multiple first receiving slots are evenly distributed on the two end sidewalls of the bottom box body, and the multiple first receiving slots on the two end sidewalls of the bottom box body are staggered in the extension direction of the wire harness.

5. The CCS busbar with a novel nickel sheet connection structure as described in claim 1, characterized in that: The conductive plate assembly includes an input electrode connector connected to one end of the blister base, an output electrode connector connected to the other end of the blister base, and a plurality of series connectors located between the input electrode connector and the output electrode connector, wherein the input electrode connector and the output electrode connector are respectively located at both ends of the blister base.

6. The CCS busbar with a novel nickel sheet connection structure as described in claim 5, characterized in that: The conductive plate assembly is made of aluminum alloy.

7. The CCS busbar with a novel nickel sheet connection structure as described in claim 1, characterized in that: The connecting nickel sheet is located between the conductive plate assembly and the wire harness, with one end connected to the conductive plate assembly and the other end connected to the wire harness.

8. The CCS busbar with a novel nickel sheet connection structure as described in claim 1, characterized in that: The connecting nickel sheet is vertically connected to the connecting protrusion.

9. The CCS busbar with a novel nickel sheet connection structure as described in claim 1, characterized in that: The conductive plate assembly is connected and fixed in the blister box by heat fusion.

10. The CCS busbar with a novel nickel sheet connection structure as described in claim 7, characterized in that: The connecting nickel sheet, the conductive plate assembly, and the wire harness are welded and fixed together.

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