New energy integrated busbar

Abstract

The utility model discloses a new energy integrated busbar, new energy integrated busbar includes cable, temperature acquisition module, insurance subassembly and aluminium bar, temperature acquisition module sets up on aluminium bar, insurance subassembly sets up on aluminium bar, and the fuse is equipped on insurance subassembly, and the fuse is connected with aluminium bar electricity, cable includes main line, a plurality of first branch line and a plurality of second branch line, and one end of first branch line is connected with main line, and the other end is connected with temperature acquisition module, and one end of second branch line is connected with main line, and the other end is connected with the fuse electricity. In the embodiment, the insurance structure is arranged as independent insurance subassembly, and the fuse is arranged on the insurance subassembly, so that the fuse does not need to be processed on the cable, the process cost is reduced, the defective rate of the cable or the integrated busbar is reduced, and the production cost is reduced. In actual use, when the fuse is fused, the insurance subassembly can be directly replaced, maintenance is convenient, the service life is long, the use cost is low, and the overall cost of the integrated busbar is reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery signal acquisition technology, and in particular to a new energy integrated busbar. Background Technology

[0002] In the field of new energy technology, whether it is automotive power batteries or new energy storage, both the old and new national standards have put forward important requirements for battery installation. The collection of internal information of the battery can monitor the internal state of the battery in real time, thereby facilitating precise and stable control of the internal state, including the control of overcharging, over-discharging, temperature, etc.

[0003] In existing systems, aluminum busbars are mostly used as bridging structures between battery cells. Aluminum itself is not easily soldered, making the soldering of thin wires to aluminum busbars even more difficult. The related work processes require highly skilled operators and advanced equipment, resulting in a relatively high overall defect rate. In some integrated busbars, FFC (Flexible Flat Cable), FPC (Flexible Printed Circuit), FDC (Flexible Die-cutting Circuit), or FCC (Flexible Flat Cable Connect Flexible Die-cut Circuit) cables are used, along with integrated fuses. This inherently involves high process costs. The high defect rate in the soldering process increases costs for product scrap and rework, further increasing processing costs. Furthermore, in actual use, when a fuse blows, the cable cannot be repaired, essentially requiring the battery pack to be scrapped, increasing operating costs. Thus, integrating fuses into the cables increases the overall cost of the integrated busbar. Utility Model Content

[0004] In order to solve the technical problem that the integration of cables and fuses in the existing integrated busbar increases the overall cost, one of the objectives of this utility model is to provide a new energy integrated busbar.

[0005] One of the objectives of this utility model is achieved through the following technical solution:

[0006] A new energy integrated busbar, the new energy integrated busbar including cables, a temperature acquisition module, a fuse component and an aluminum busbar;

[0007] The temperature acquisition module is mounted on the aluminum bar;

[0008] The safety component is disposed on the aluminum bar, and the safety component is provided with a fuse, which is electrically connected to the aluminum bar;

[0009] The cable includes a main line, several first branch lines and several second branch lines. One end of the first branch line is connected to the main line and the other end is connected to the temperature acquisition module. One end of the second branch line is connected to the main line and the other end is electrically connected to the fuse.

[0010] Optionally, the fuse assembly includes a substrate, a fuse, a first pad, and a second pad. The substrate is disposed on the aluminum bar, the first pad is disposed at a first end of the substrate, the second pad is disposed at a second end of the substrate, and one end of the fuse is connected to the first pad and the other end is connected to the second pad.

[0011] The second branch line is connected to the first pad;

[0012] The second pad is electrically connected to the aluminum bar.

[0013] Optionally, the fuse assembly further includes a protective layer for isolation and protection, the protective layer being disposed on the substrate and covering the fuse, the first pad, and the second pad.

[0014] Optionally, the protective layer is provided with two windows, which are respectively set to correspond one-to-one with the first pad and the second pad, for exposing the soldering.

[0015] Optionally, the protective layer is a solder resist film.

[0016] Optionally, the safety assembly further includes a welding tab, one end of which is welded to the second pad and the other end of which is welded to the aluminum bar.

[0017] Optionally, the end of the solder pad near the second pad is provided with a through hole, and the through hole faces the second pad.

[0018] Optionally, the welding sheet is a nickel sheet.

[0019] Optionally, the substrate is a PCB board or a bakelite board.

[0020] Optionally, the new energy integrated busbar also includes a plastic tray, on which the cable, temperature acquisition module, fuse component and aluminum busbar are mounted.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] The new energy integrated busbar includes cables, a temperature acquisition module, a fuse assembly, and an aluminum busbar. The main line is distributed in a straight line, with first and second branches located on either side or one side of the main line. The main line connects to the temperature acquisition module via the first branch, which is mounted on the aluminum busbar and acquires the temperature. The second branch connects to the fuse assembly, which is mounted on the aluminum busbar and acquires the voltage. This combination of first and second branches enables batch monitoring of the battery cells. More importantly, in this embodiment, the fuse structure is set as an independent fuse assembly with a fuse wire, eliminating the need to fabricate fuses on the cables, reducing process costs, lowering the defect rate of cables or the integrated busbar, and reducing production costs.

[0023] In addition, in actual use, when the fuse blows, the fuse component can be directly replaced, which is convenient to maintain, has a long service life, low operating cost, and reduces the overall cost of the integrated busbar. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the new energy integrated busbar of this utility model;

[0025] Figure 2 for Figure 1 A magnified view of a local region a in the middle;

[0026] Figure 3 This is a schematic diagram of the safety component in the new energy integrated busbar of this utility model;

[0027] Figure 4 This is an exploded view of the safety component in the new energy integrated busbar of this utility model.

[0028] Explanation of reference numerals in the attached diagram:

[0029] 1. Cable; 11. Main line; 12. First branch line; 13. Second branch line;

[0030] 2. Temperature acquisition module;

[0031] 3. Fuse assembly; 31. Substrate; 32. Fuse; 33. First pad; 34. Second pad; 35. Solder piece; 351. Through hole; 36. Protective layer; 361. Window;

[0032] 4. Aluminum bar;

[0033] 5. Plastic pallets. Detailed Implementation

[0034] The following will refer to the appendices in the embodiments of this application. Figure 1 To be continued Figure 4The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0037] like Figure 1 , Figure 2 The present invention provides a new energy integrated busbar, which includes a cable 1, a temperature acquisition module 2, a fuse assembly 3, and an aluminum busbar 4. Specifically, the temperature acquisition module 2 is disposed on the aluminum busbar 4 to acquire the temperature of the aluminum busbar 4. The fuse assembly 3 is disposed on the aluminum busbar 4 and is equipped with a fuse 32, which is electrically connected to the aluminum busbar 4 to acquire the voltage of the aluminum busbar 4. The cable 1 includes a main line 11, several first branch lines 12, and several second branch lines 13. One end of the first branch line 12 is connected to the main line 11, and the other end is connected to the temperature acquisition module 2. One end of the second branch line 13 is connected to the main line 11, and the other end is electrically connected to the fuse 32. The second branch line 13 acquires the voltage of the aluminum busbar 4 through the fuse 32.

[0038] In this embodiment, the new energy integrated busbar includes cables 1, temperature acquisition modules 2, fuse components 3, and aluminum busbars 4. The main line 11 is distributed in a straight line, with first branch lines 12 and second branch lines 13 located on either side or one side of the main line 11. The main line 11 connects to the temperature acquisition module 2 via the first branch line 12. The temperature module is mounted on the aluminum busbar 4 and acquires the temperature. The fuse component 3 is connected to the main line 11 via the second branch line 13. The fuse component 3 is mounted on the aluminum busbar 4 and acquires the voltage. Thus, through several first branch lines 12 and several second branch lines 13, batch monitoring of the battery cells is achieved. More importantly, in this embodiment, the fuse structure is set as an independent fuse component 3, with a fuse 32 installed on the fuse component 3. This eliminates the need to process the fuse 32 on the cable 1, reducing process costs, lowering the defect rate of the cable 1 or the integrated busbar, and reducing production costs.

[0039] In addition, in actual use, when fuse 32 blows, fuse component 3 can be directly replaced, which is convenient to maintain, has a long service life, low operating cost, and reduces the overall cost of the integrated busbar.

[0040] In some embodiments of insurance component 3, such as Figure 3 , Figure 4 As shown, the fuse assembly 3 includes a substrate 31, a fuse 32, a first pad 33, and a second pad 34. The substrate 31 serves as the basic mounting structure for the fuse 32, the first pad 33, and the second pad 34, and is typically a plate-like structure made of insulating material. The substrate 31 is mounted on the aluminum busbar 4. The first pad 33 is located at the first end of the substrate 31, and the second pad 34 is located at the second end of the substrate 31. One end of the fuse 32 is connected to the first pad 33, and the other end is connected to the second pad 34. The second branch line 13 is connected to the first pad 33. The second pad 34 is electrically connected to the aluminum busbar 4. In this embodiment, the first pad 33 and the second pad 34 are respectively the welding structures of the second branch line 13 and the electrically connected aluminum busbar 4, i.e., the welding structure of the second branch line 13 and the welding piece 35. The fuse 32 limits the current power between the first pad 33 and the second pad 34, preventing overload of the circuit flowing sequentially through the second branch line 13 and the main line 11, and preventing overheating of the integrated busbar.

[0041] Specifically, substrate 31 is a PCB board or a bakelite board.

[0042] In addition, such as Figure 3 As shown, the fuse assembly 3 also includes a welding piece 35, one end of which is welded to the second pad 34 and the other end is welded to the aluminum bar 4. The welding piece 35 is the structure for fixing the fuse assembly 3 and the aluminum bar 4, and it is also the structure for electrically connecting the fuse assembly 3 and the aluminum bar 4.

[0043] Furthermore, such as Figure 3 , Figure 4As shown, a through hole 351 is provided at one end of the welding piece 35 near the second pad 34, with the through hole 351 facing the second pad 34. Providing the through hole 351 on the welding piece 35 facilitates direct welding of the upper surface of the second pad 34 to the lower surface of the welding piece 35 around the edge of the through hole 351. For example, when using laser welding, it allows the laser to directly heat the upper surface of the second pad 34 and the lower surface of the welding piece 35 around the edge of the through hole 351, improving the weld strength.

[0044] The welding piece 35 can be made of copper, aluminum, nickel, etc., with nickel being the preferred material.

[0045] In some embodiments of fuse 32, such as Figure 3 , Figure 4 As shown, the fuse assembly 3 also includes a protective layer 36 for isolation and protection. The protective layer 36 is disposed on the substrate 31 and covers the fuse 32, the first pad 33, and the second pad 34. The fuse 32, the first pad 33, and the second pad 34 are typically made of copper or a copper-based alloy, which are prone to corrosion when exposed for a long time. In particular, the fuse 32 is more likely to corrode and break. Therefore, the protective layer 36 can isolate and protect the fuse 32, the first pad 33, and the second pad 34, preventing oxidation and corrosion and improving the stability of use.

[0046] Furthermore, such as Figure 4 As shown, the protective layer 36 has two windows 361, which are respectively set to correspond one-to-one with the first pad 33 and the second pad 34, for exposing the soldering. By setting the windows 361, the soldering is avoided, so that the second branch line 13 can be directly soldered to the first pad 33, and the solder pad 35 can be directly soldered to the second pad 34.

[0047] For the protective layer 36, the protective layer 36 can be an insulating layer, a solder resist film, etc., preferably a solder resist ink.

[0048] In some embodiments of the new energy integrated busbar, the new energy integrated busbar also includes a plastic tray 5, on which cables 1, temperature acquisition modules 2, safety components 3 and aluminum bars 4 are mounted.

[0049] Specifically, cable 1 can be an FFC cable, an FPC cable, an FDC cable, or an FCC cable.

[0050] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A new energy integrated busbar, characterized in that, The new energy integrated busbar includes cables, a temperature acquisition module, a fuse component, and an aluminum busbar; The temperature acquisition module is mounted on the aluminum bar; The safety component is disposed on the aluminum bar, and the safety component is provided with a fuse, which is electrically connected to the aluminum bar; The cable includes a main line, several first branch lines and several second branch lines. One end of the first branch line is connected to the main line and the other end is connected to the temperature acquisition module. One end of the second branch line is connected to the main line and the other end is electrically connected to the fuse.

2. The new energy integrated busbar as described in claim 1, characterized in that, The safety component includes a substrate, a fuse, a first pad, and a second pad. The substrate is disposed on the aluminum bar. The first pad is disposed at a first end of the substrate, and the second pad is disposed at a second end of the substrate. One end of the fuse is connected to the first pad, and the other end is connected to the second pad. The second branch line is connected to the first pad; The second pad is electrically connected to the aluminum bar.

3. The new energy integrated busbar as described in claim 2, characterized in that, The fuse assembly also includes a protective layer for isolation and protection, the protective layer being disposed on the substrate and covering the fuse, the first pad, and the second pad.

4. The new energy integrated busbar as described in claim 3, characterized in that, The protective layer has two windows, which are respectively set to correspond one-to-one with the first pad and the second pad, for exposing the soldering.

5. The new energy integrated busbar as described in claim 3, characterized in that, The protective layer is a solder resist film.

6. The new energy integrated busbar as described in claim 2, characterized in that, The safety component also includes a welding piece, one end of which is welded to the second pad and the other end of which is welded to the aluminum bar.

7. The new energy integrated busbar as described in claim 6, characterized in that, The end of the welding piece near the second pad has a through hole, which faces the second pad.

8. The new energy integrated busbar as described in claim 6, characterized in that, The welding sheet is a nickel sheet.

9. The new energy integrated busbar as described in claim 2, characterized in that, The substrate is a PCB board or a bakelite board.

10. The new energy integrated busbar as described in claim 1, characterized in that, The new energy integrated busbar also includes a plastic tray, on which the cables, temperature acquisition module, fuse components and aluminum busbar are mounted.

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