Integrated busbar and battery pack
By using snap-fit connectors to connect the base plate, signal acquisition components, and busbars to form an integrated busbar, the problem of high battery pack production costs is solved, enabling efficient and low-cost installation and production.
Patent Information
- Application Number
- CN202422655200.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The existing battery pack integrated busbar has high production costs and low production efficiency. Furthermore, the thermosetting film process is energy-intensive, resulting in high production costs and poor economic benefits.
The substrate, signal acquisition components and conductive busbars are connected together using snap-fit connectors to form an integrated busbar, avoiding time-consuming processes such as hot riveting and hot pressing, and achieving simple installation using snap-fit connectors.
It improved production efficiency, reduced production costs, avoided installation errors, increased product installation yield, and simplified production equipment requirements.
Smart Images
Figure CN223743841U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of new energy, in particular to an integrated busbar and a battery pack. BACKGROUND
[0002] In the technical field of new energy, the integrated busbar is a component on the battery pack, which generally includes structural members, signal acquisition assemblies, and conductive buses. The conductive buses are connected to the batteries, the signal acquisition assemblies are used to acquire signals such as voltage and temperature of the batteries, and the structural members provide mechanical support for the busbar.
[0003] The traditional production process of the battery pack integrated busbar is a hot pressing process. The structural members are thermosetting films, which fix the conductive buses and the signal acquisition assemblies to form the integrated busbar. Since the thermosetting film must undergo certain temperature, pressure, and time to complete production, the production time is relatively long, and the production efficiency is relatively low. The thermosetting film needs to use a specific mold during the hot pressing process. Each set of mold can only hot press one product at a time, resulting in high production cost. In addition, during the hot pressing process, there are long heating and cooling processes, which consume a lot of energy and have low utilization rate. Overall, the production cost of the battery pack integrated busbar using the thermosetting film is high, and the economic benefit is poor. SUMMARY
[0004] The purpose of the embodiments of the present application is to provide an integrated busbar to solve the technical problem of high production cost of the battery pack integrated busbar in the prior art.
[0005] In a first aspect, the utility model provides an integrated busbar, including substrate, signal acquisition assembly and conductive bus, the conductive bus includes at least two conductive connecting parts and a transition part, the transition part is located between at least two conductive connecting parts, the conductive bus further includes at least two installation connecting parts, the transition part is located between at least two installation connecting parts, at least two installation connecting parts are asymmetrically arranged on both sides of the transition part, the substrate and the installation connecting part are fixedly connected by a press buckle connector, and the substrate and the signal acquisition assembly are fixedly connected by a press buckle connector.
[0006] In an optional embodiment, the substrate is provided with a plurality of first mounting holes, and the press buckle connector fixes and connects the substrate and the conductive bus by penetrating the installation connecting part and the first mounting hole.
[0007] In an optional embodiment, the signal acquisition assembly is provided with a plurality of second mounting holes, and the press buckle connector fixes and connects the substrate and the signal acquisition assembly by penetrating the first mounting hole and the second mounting hole.
[0008] In an optional embodiment, among the at least two installation connecting parts, at least one is arranged close to the transition part, and at least one is arranged away from the transition part.
[0009] In an optional embodiment, the mounting connecting part is a hole or a groove provided on the conductive connecting part.
[0010] In an optional embodiment, the crimping connecting part comprises a head and a tail, the head of the crimping connecting part is crimped to the conductive connecting part or the signal acquisition assembly, and the tail of the crimping connecting part comprises at least two elastic arms, and the at least two elastic arms are crimped to the substrate.
[0011] In an optional embodiment, the crimping connecting part further comprises a connecting cap, the connecting cap is arranged between the substrate and the elastic arms, and the elastic arms are crimped to the connecting cap.
[0012] In an optional embodiment, the signal acquisition assembly comprises a pressure acquisition mechanism, a temperature acquisition mechanism, an insulating film and a flexible circuit board.
[0013] In an optional embodiment, the substrate is made of polycarbonate material.
[0014] The integrated busbar provided by the utility model has the following beneficial effects:
[0015] 1. The substrate, the signal acquisition assembly and the conductive busbar are connected together by the crimping connecting part to form the integrated busbar, the mounting process is simple, and no time-consuming and heated mounting process such as hot riveting and hot pressing is needed, so that the production efficiency is high, the requirement for production equipment is low, and the production cost is low.
[0016] 2. At least two conductive connecting parts are arranged on one conductive busbar, the mounting connecting parts on the conductive busbar are asymmetrically arranged on both sides of the transition part, the anti-fumble effect can be achieved, the conductive busbar is prevented from being mounted upside down on the substrate, the installation position of the two conductive connecting parts is prevented from being wrong, and the product installation yield is improved.
[0017] In a second aspect, the utility model provides a battery pack comprising the integrated busbar according to any one of the preceding embodiments.
[0018] The battery pack provided by the utility model has the following beneficial effects:
[0019] 1. The production cost of the integrated busbar is low, and the production cost of the battery pack can be reduced.
[0020] 2. The installation position of the conductive connecting part on the conductive busbar is not prone to installation errors, and the installation yield of the battery pack can be improved. DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0022] Figure 1 The overall structure schematic diagram of the integrated busbar provided by the embodiments of the present application is shown in the figure.
[0023] Figure 2 The structure schematic diagram of the conductive row of the integrated busbar provided by the embodiments of the present application is shown in the figure.
[0024] Figure 3 The partial structure schematic diagram of the substrate of the integrated busbar provided by the embodiments of the present application is shown in the figure.
[0025] Figure 4 The partial structure schematic diagram of the signal acquisition assembly of the integrated busbar provided by the embodiments of the present application is shown in the figure.
[0026] Figure 5 The structure schematic diagram of the pressure buckle connecting piece of the integrated busbar provided by the embodiments of the present application is shown in the figure.
[0027] Figure 6 The structure schematic diagram of the pressure buckle connecting piece of the integrated busbar provided by the embodiments of the present application is shown in the figure.
[0028] Figure 7 The partial structure schematic diagram of the integrated busbar provided by the embodiments of the present application is shown in the figure.
[0029] Figure: 100-substrate; 110-first mounting hole; 200-signal acquisition assembly; 210-second mounting hole; 300-conductive row; 310-conductive connecting part; 320-transition part; 330-mounting connecting part; 400-pressure buckle connecting piece; 410-head; 420-elastic arm; 430-connecting cap. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0031] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "inner", "outer" and the like are based on the positions or location relationships shown in the drawings, or the positions or location relationships commonly placed when the products of the present application are used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0033] Embodiment one
[0034] The utility model embodiment one provides a kind of integrated busbar, as shown in Figures 1 to 7 It includes substrate 100, signal acquisition component 200 and conducting bar 300, conducting bar 300 includes at least two electrically-conductive connecting parts 310 and one transition part 320, transition part 320 is located between at least two electrically-conductive connecting parts 310, conducting bar 300 further includes at least two mounting connecting parts 330, transition part 320 is located between at least two mounting connecting parts 330, at least two mounting connecting parts 330 are asymmetrically disposed on the two sides of transition part 320, substrate 100 and mounting connecting part 330 are fixedly connected using press buckle connecting piece 400, substrate 100 and signal acquisition component 200 are fixedly connected using press buckle connecting piece 400.
[0035] The integrated busbar provided by the utility model embodiment one connects substrate 100, signal acquisition component 200 and conducting bar 300 together using press buckle connecting piece 400 to form integrated busbar, installation process is simple, without using time-consuming and needing heating installation process such as hot riveting, hot pressing, production efficiency is high, the requirement of production equipment is low, and production cost is low.
[0036] The integrated busbar provided in the embodiment one of the utility model, one conductive row 300 is equipped with at least two conductive connecting parts 310, installs the connecting part 330 on the conductive row 300 and is asymmetrically arranged on the two sides of transition part 320, can play the effect of preventing the mistake, avoids the conductive row 300 and installs to the substrate 100 left and right or upside-down, thereby avoids the installation position error of two conductive connecting parts 310, and further improves product installation yield.
[0037] The integrated busbar provided in the embodiment one of the utility model only includes substrate 100, signal acquisition assembly 200 and conductive row 300, does not need to set other insulating cover, insulating film, thermoplastic film and the structure, and the component quantity is less, and production cost is low, and it is convenient to assemble production.
[0038] Figure 1 The integrated busbar provided in the embodiment of the application is as shown in the whole structure schematic diagram, Figure 1 As shown in the substrate 100, the conductive row 300 is equipped with two groups, and each group of conductive row 300 includes a plurality of conductive rows 300, and the two groups of conductive rows 300 are symmetrically arranged on the two sides of a signal acquisition assembly 200.
[0039] Figure 2 The structure schematic diagram of the conductive row 300 of the integrated busbar provided in the embodiment of the application is as shown in the structure schematic diagram, Figure 2 As shown in the two installation connecting parts 330 are asymmetrically arranged on the two sides of transition part 320, can play the effect of preventing the mistake, and if the installation connecting part 330 of asymmetric setting is upside-down or left and right upside-down, it is convenient to find the placement error of the conductive row 300, thereby avoiding installation error. The conductive row 300 can be aluminum or copper material, and the conductive row 300 of aluminum material is also called aluminum bar, and the conductive row 300 of copper material is also called copper bar.
[0040] Figure 7 The local structure schematic diagram of the integrated busbar provided in the embodiment of the application is as shown in the local structure schematic diagram, Figure 7 As shown in the substrate 100 and installation connecting part 330 are fixedly connected by adopting press buckle connecting piece 400, and the substrate 100 and signal acquisition assembly 200 are fixedly connected by adopting press buckle connecting piece 400. Press buckle connecting piece 400 is equipped with multiple, and the conductive row 300 and signal acquisition assembly 200 are connected by adopting multiple press buckle connecting pieces 400 and substrate 100.
[0041] In the optional implementation, the substrate 100 is equipped with multiple first mounting holes 110, and the press buckle connecting piece 400 is fixedly connected with the substrate 100 and the conductive row 300 by penetrating the installation connecting part 330 and the first mounting hole 110.
[0042] Figure 3A partial structure schematic diagram of the substrate 100 provided by the busbar integration embodiment of the present application is shown in FIG. 1, wherein the substrate 100 is provided with a plurality of first mounting holes 110, each of which is used for connecting with the snap fastener 400, and a part of which is used for fixing and connecting the conductive busbar 300 to the substrate 100. Figure 3
[0043] As shown in FIGS. 1, 2 and 3, the snap fastener 400 fixes and connects the substrate 100 and the conductive busbar 300 by penetrating the mounting connecting portion 330 and the first mounting hole 110. Figure 2 Figure 3 Figure 7
[0044] In an optional embodiment, the signal acquisition assembly 200 is provided with a plurality of second mounting holes 210, and the snap fastener 400 fixes and connects the substrate 100 and the signal acquisition assembly 200 by penetrating the first mounting hole 110 and the second mounting hole 210.
[0045] Figure 4 A partial structure schematic diagram of the signal acquisition assembly 200 provided by the busbar integration embodiment of the present application is shown in FIG. 4, wherein the signal acquisition assembly 200 is provided with a plurality of second mounting holes 210. As shown in FIGS. 4, 5 and 6, the snap fastener 400 fixes and connects the substrate 100 and the signal acquisition assembly 200 by penetrating the first mounting hole 110 and the second mounting hole 210. Figure 4 Figure 3 Figure 4 Figure 7
[0046] In an optional embodiment, among the at least two mounting connecting portions 330, at least one is arranged close to the transition portion 320, and at least one is arranged away from the transition portion 320.
[0047] As shown in FIG. 7, among the conductive busbar 300, one mounting connecting portion 330 is arranged close to the transition portion 320, and one mounting connecting portion 330 is arranged away from the transition portion 320, which has a more obvious fool-proof effect and is easier to find the situation of wrong position, and meanwhile, the position distribution of the mounting connecting portion 330 on the conductive busbar 300 is more dispersed, and the mounting connecting effect of the conductive busbar 300 and the substrate 100 is better. Figure 2
[0048] In an optional embodiment, the mounting connecting portion 330 is a hole or a groove arranged on the conductive connecting portion 310.
[0049] As shown in FIG. 8, the mounting connecting portion 330 is a hole arranged on the conductive connecting portion 310. In other embodiments, the mounting connecting portion 330 can also be in the shape of a groove, etc. When the snap fastener 400 is mounted, the snap fastener 400 penetrates the mounting connecting portion 330 in the form of these holes or grooves. Figure 2
[0050] In an optional embodiment, the snap-fit connector 400 includes a head 410 and a tail. The head 410 of the snap-fit connector 400 is snapped onto the conductive connection portion 310 or the signal acquisition component 200. The tail of the snap-fit connector 400 includes at least two elastic arms 420, which are snapped onto the substrate 100.
[0051] Figure 5 This is one of the structural schematic diagrams of the integrated busbar snap-fit connector 400 provided in the embodiments of this application, as shown below. Figure 5 As shown, the head 410 of the snap-fit connector 400 has an extension portion, which can be used to snap onto the conductive connection portion 310 or the signal acquisition component 200, thereby fixing the conductive connection portion 310 or the signal acquisition component 200 onto the substrate 100. The elastic arm 420 can be snapped onto the substrate 100, thereby connecting the snap-fit connector 400 and the substrate 100. When the snap-fit connector 400 passes through the mounting connection portion 330 and the substrate 100, the elastic arm 420 is compressed and deformed by the mounting connection portion 330 and the substrate 100. After the tail of the snap-fit connector 400 passes through the substrate 100, the elastic arm 420 returns to its original shape under its own elasticity, and the elastic arm 420 snaps onto the substrate 100. The snap-fit connector 400 is inserted into the signal acquisition component 200 and the substrate 100. Some of the signal acquisition components 200 have lower strength but thinner thickness. The elastic arm 420 can be deformed by passing through the substrate 100. Therefore, the snap-fit connector 400 is still applicable even for thinner signal acquisition components 200 such as foldable circuit boards.
[0052] In an optional embodiment, the snap-fit connector 400 further includes a connector cap 430, which is disposed between the substrate 100 and the elastic arm 420. The elastic arm 420 snaps onto the connector cap 430, thereby achieving the connection between the tail of the snap-fit connector 400 and the substrate 100.
[0053] Figure 6 This is a second structural schematic diagram of the integrated busbar snap-fit connector 400 provided in the embodiments of this application, as shown in the diagram. Figure 6 As shown, the elastic arm 420, after opening, snaps onto the connecting cap 430. The connecting cap 430 is located between the substrate 100 and the elastic arm 420, which can strengthen the connection between the substrate 100 and the elastic arm 420, while providing greater longitudinal space. The elastic arm 420 can be made longer, with better elasticity, and is easier to deform when inserted into the mounting connector 330 and the substrate 100, making installation easier.
[0054] In an optional embodiment, the signal acquisition component 200 includes a pressure sampling mechanism, a temperature sampling mechanism, an insulating film, and a flexible circuit board. The insulating film and flexible circuit board enable the signal acquisition component 200 to exhibit flexibility and a thinness. In other embodiments, the signal acquisition component 200 may also employ a printed circuit board.
[0055] In an optional embodiment, the substrate 100 adopts a polycarbonate (PC) material. In the utility model, the buckle connector 400 needs to be buckled with the substrate 100, so as to connect the conductive row 300 and the signal acquisition assembly 200 on the substrate 100, and the substrate 100 adopts the polycarbonate material, which can provide higher structural strength.
[0056] Embodiment Two
[0057] The utility model embodiment two provides a kind of battery pack, including the integrated busbar according to any one of preceding embodiment.
[0058] The battery pack provided by the utility model embodiment two has the following beneficial effects:
[0059] 1. The integrated busbar has low production cost, which can reduce the production cost of the battery pack.
[0060] 2. The installation position of the conductive connection part 310 on the conductive row 300 is not prone to installation errors, which can improve the installation yield of the battery pack.
[0061] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.
[0062] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An integrated busbar, characterized by, The integrated busbar comprises a substrate (100), a signal acquisition assembly (200), and a conductive busbar (300), the conductive busbar (300) comprises at least two conductive connecting portions (310) and a transition portion (320) arranged between the at least two conductive connecting portions (310), the conductive busbar (300) further comprises at least two mounting connecting portions (330), the transition portion (320) is arranged between the at least two mounting connecting portions (330), the at least two mounting connecting portions (330) are asymmetrically arranged on both sides of the transition portion (320), the substrate (100) and the mounting connecting portions (330) are fixedly connected by a press buckle connector (400), and the substrate (100) and the signal acquisition assembly (200) are fixedly connected by the press buckle connector (400).
2. The integrated busbar of claim 1, wherein, The substrate (100) is provided with a plurality of first mounting holes (110), and the press buckle connector (400) is arranged to pass through the mounting connecting portions (330) and the first mounting holes (110) to fixedly connect the substrate (100) and the conductive busbar (300).
3. The integrated busbar of claim 2, wherein, The signal acquisition assembly (200) is provided with a plurality of second mounting holes (210), and the press buckle connector (400) is arranged to pass through the first mounting holes (110) and the second mounting holes (210) to fixedly connect the substrate (100) and the signal acquisition assembly (200).
4. The integrated busbar of claim 1, wherein, Among the at least two mounting connecting portions (330), at least one is arranged close to the transition portion (320), and at least one is arranged away from the transition portion (320).
5. The integrated busbar of claim 1, wherein, The mounting connecting portion (330) is a hole or a groove arranged in the conductive connecting portion (310).
6. The integrated busbar of claim 1, wherein, The press buckle connector (400) comprises a head portion (410) and a tail portion, the head portion (410) of the press buckle connector (400) is press-connected to the conductive connecting portion (310) or the signal acquisition assembly (200), and the tail portion of the press buckle connector (400) comprises at least two elastic arms (420), and the at least two elastic arms (420) are press-connected to the substrate (100).
7. The integrated busbar of claim 6, wherein, The press buckle connector (400) further comprises a connecting cap (430), the connecting cap (430) is arranged between the substrate (100) and the elastic arms (420), and the elastic arms (420) are press-connected to the connecting cap (430).
8. The integrated busbar of claim 1, wherein, The signal acquisition assembly (200) comprises a pressure acquisition mechanism, a temperature acquisition mechanism, an insulating film, and a flexible circuit board.
9. The integrated busbar of claim 1, wherein, The substrate (100) is made of polycarbonate material.
10. A battery pack, characterized by, The integrated busbar comprises the integrated busbar according to any one of claims 1 to 9. The integrated busbar comprises the integrated busbar according to any one of claims 1 to 9.