Electric guide plate device and battery pack
By using a stacked structure of brackets, aluminum busbars, and electronic control boards, the problem of battery pack monitoring was solved, achieving the effects of simplified assembly and improved space utilization.
Patent Information
- Application Number
- CN202423056785.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In existing technologies, the operating status of battery packs is difficult to monitor, and the addition of wires and adapter terminals increases assembly steps and battery pack volume, resulting in a decrease in effective space utilization.
The structure adopts a layered arrangement of brackets, aluminum busbars, and electrical control boards. The aluminum busbars are directly electrically connected to the electrical control board. The positioning and connection of the aluminum busbars are achieved through the electrical conduction ports on the brackets and the slots in the aluminum busbars, simplifying the assembly process.
It enables real-time and accurate monitoring of the battery pack's operating status, reducing assembly difficulty and cost, and improving space utilization.
Smart Images
Figure CN223625167U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery technology, and in particular to a conductive plate device and a battery pack. Background Technology
[0002] As battery module design becomes increasingly integrated, connecting multiple individual cells into a battery pack via aluminum busbars has become a mainstream trend. To monitor the working status of the battery pack, wires are welded onto each battery pack, and connecting all the wires in a battery pack to a control box is a common control method.
[0003] The wiring setup adds assembly steps and increases assembly difficulty. Furthermore, the wiring of the aluminum busbar and the wiring from the control box need to be connected via adapter terminals. The multiple adapter terminals housed in the battery pack also increase the size of the battery pack, which leads to a decrease in the effective space utilization of the battery. Utility Model Content
[0004] One objective of this invention is to provide a conductive plate device and a battery pack, which aims to solve the technical problem of difficulty in detecting the working status of the battery pack.
[0005] To achieve the above objectives, the present invention provides a solution as follows: a conductive plate device, which includes a support, an aluminum busbar, and an electrical control board stacked layer by layer. Specifically, the support has multiple hollow conductive ports; the aluminum busbar is connected to the support, and the aluminum busbar is used to electrically connect to a battery through the corresponding conductive ports; the electrical control board is connected to the support, and the aluminum busbar is disposed between the support and the electrical control board, and the aluminum busbar is electrically abutting against the electrical control board.
[0006] In some embodiments of this application, the bracket is further provided with an aluminum strip groove, which is connected to the electrical conduction port, and the aluminum strip is housed in the aluminum strip groove.
[0007] In some embodiments of this application, the bracket further includes a first buckle, which protrudes from the side wall of the aluminum strip channel and is spaced apart from the bottom wall of the aluminum strip channel. The first buckle and the bottom wall of the aluminum strip channel clamp the edge of the aluminum strip.
[0008] In some embodiments of this application, the depth of the aluminum strip groove is greater than the thickness of the aluminum strip.
[0009] In some embodiments of this application, the aluminum busbar includes a first aluminum busbar; the first aluminum busbar includes a first row, a second row and a buffer portion connected to each other, the first row and the second row respectively correspond to electrical conduction ports and are respectively used for electrical connection with adjacent batteries, the first row and the second row are connected through the buffer portion, and the buffer portion is recessed towards the direction of the electronic control board.
[0010] In some embodiments of this application, the control board is further provided with a first probe hole; the first aluminum busbar also includes a first probe, which is connected to the first busbar or the second busbar, and extends away from and into the first probe hole.
[0011] In some embodiments of this application, the aluminum busbar includes a second aluminum busbar, which includes a third row and a fourth row that are connected to each other. The third row has an electrical conduction port for electrical connection with the battery. The control board also has a clearance opening, and the fourth row extends toward the control board and is accommodated in the clearance opening. The fourth row is used to output electrical energy from the battery or input electrical energy into the battery.
[0012] In some embodiments of this application, the control board is further provided with a second probe hole; the second aluminum busbar also includes a second probe, which is connected to the third or fourth busbar and extends away from the control board and is inserted into the second probe hole.
[0013] In some embodiments of this application, the bracket includes a frame and a positioning rod. The positioning rod protrudes from the frame, the frame has an electrical conduction port, and an aluminum strip is disposed between the frame and the control board. The control board also has a positioning hole, through which the positioning rod passes.
[0014] In some embodiments of this application, the bracket includes a frame and a second buckle. The frame has an electrical conduction port, and an aluminum busbar is disposed between the frame and the electrical control board. The second buckle includes a first part and a second part. One end of the first part is connected to the frame, and the other end of the first part extends away from the frame and is connected to the second part. The second part clamps the aluminum busbar between itself and the frame.
[0015] If the above objectives are not achieved, another solution provided by this utility model is a battery pack, which includes: a plurality of individual cells and any of the above-mentioned conductive plate devices, wherein the individual cells are electrically connected through the conductive plate devices.
[0016] The beneficial effects of this utility model are as follows:
[0017] The bracket, aluminum busbars, and control board are stacked layer by layer. The control board and aluminum busbars are connected to the bracket. The control board is assembled on the individual battery cells to realize the electrical connection of each individual battery cell. At the same time, the control board directly connects to each aluminum busbar. The working status of the battery pack can be monitored in real time and accurately without additional wiring steps.
[0018] The conductive plate device and battery pack provided by this utility model only require stacking the control board on the bracket to directly monitor each aluminum busbar. Compared with the prior art, the technical solution of this utility model can more easily realize the configuration of monitoring components, the structure of monitoring parts is more controllable, and the assembly cost is lower. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0020] Figure 1 This is an exploded structural diagram of the conductive plate device provided in this embodiment of the utility model;
[0021] Figure 2 This is a schematic diagram of the conductive plate device provided in this embodiment of the present invention after removing the electrical control board and part of the aluminum busbar;
[0022] Figure 3 yes Figure 2 A magnified view of a portion of region A in the middle;
[0023] Figure 4 This is a schematic diagram of the structure of the first aluminum busbar provided in this embodiment of the present invention;
[0024] Figure 5 This is a schematic diagram of the structure of the second aluminum busbar provided in an embodiment of the present invention;
[0025] Figure 6 This is a schematic diagram of the conductive plate device provided in another embodiment of the present invention after removing the electrical control board and part of the aluminum busbar;
[0026] Figure 7 yes Figure 6 A magnified view of a portion of region B in the middle.
[0027] Explanation of icon numbers:
[0028] 10. Bracket; 11. Frame; 12. Electrical inlet; 13. Aluminum strip channel; 14. First buckle; 15. Second buckle; 151. First part; 152. Second part; 16. Positioning rod; 20. Aluminum strip; 21. First aluminum strip; 211. First row; 212. Second row; 213. Buffer part; 214. First probe; 22. Second aluminum strip; 221. Third row; 222. Fourth row; 223. Second probe; 30. Electrical control board; 31. First probe hole; 32. Second probe hole; 33. Positioning hole; 34. Clearance opening. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figure 1 and Figure 2 As shown, Figure 1 This is an exploded structural diagram of the conductive plate device provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the structure of the conductive plate device provided in this embodiment of the present invention after removing the electrical control board 30 and part of the aluminum busbar 20.
[0031] To address the technical problem of difficulty in monitoring the operating status of battery packs, this utility model discloses a conductive plate device. The conductive plate device includes a support 10, an aluminum busbar 20, and an electrical control board 30 stacked in layers. Specifically, the support 10 has multiple hollow conductive ports 12; the aluminum busbar 20 is connected to the support 10, and the aluminum busbar 20 is used to electrically connect to the battery through the corresponding conductive ports 12; the electrical control board 30 is connected to the support 10, and the aluminum busbar 20 is disposed between the support 10 and the electrical control board 30, and the aluminum busbar 20 and the electrical control board 30 are electrically abutted.
[0032] In this embodiment, the aluminum busbar 20 and the electronic control board 30 are respectively connected to the bracket 10. When the conductive plate device is assembled on a single cell and the single cells are electrically connected through the aluminum busbar 20, the electronic control board 30 can receive the signal from the aluminum busbar 20 and monitor the working status of the single cell.
[0033] Compared to existing technologies that require wires and terminals to lead out signals from the aluminum busbar 20, the conductive plate device in this embodiment is easier to install. Simply place the aluminum busbar 20 on the bracket 10, then fasten the control board 30 to the bracket 10. The control board 30 and the bracket 10 clamp the aluminum busbar 20, thus completing the installation. Furthermore, in wire-connected solutions, redundant wires can become unstable factors in the device, interfering with the assembly of other components. In this embodiment, the control board 30 directly abuts against the aluminum busbar 20, eliminating redundant flexible structures.
[0034] It should be noted that this embodiment describes assembling the conductive plate device onto a single battery cell, but this does not mean that the bracket 10, aluminum busbar 20, and control board 30 must be assembled entirely onto the single battery cell in this embodiment. In fact, in some application scenarios, assembling the bracket 10 onto the single battery cell first, then connecting the aluminum busbar 20 to the bracket 10 and the single battery cell, and finally assembling the control board 30 can also achieve the technical effect of reducing assembly costs.
[0035] In some embodiments of this application, the bracket 10 is also provided with an aluminum strip groove 13, which is connected to the electrical conduction port 12, and the aluminum strip 20 is housed in the aluminum strip groove 13.
[0036] The aluminum strip groove 13 facilitates the positioning of the aluminum strip 20. The aluminum strip 20 can be positioned simply by placing it in the aluminum strip groove 13. The shape of the aluminum strip groove 13 also serves as a foolproof structure, preventing assemblers from mixing aluminum strips 20 of different shapes, which could lead to defective products.
[0037] Please refer to the following: Figure 3 As shown, Figure 3 yes Figure 2 A magnified view of a portion of region A in the middle.
[0038] Furthermore, the bracket 10 also includes a first buckle 14, which protrudes from the side wall of the aluminum strip groove 13 and is spaced apart from the bottom wall of the aluminum strip groove 13. The first buckle 14 and the bottom wall of the aluminum strip groove 13 clamp the edge of the aluminum strip 20.
[0039] The first buckle 14 is designed so that when the aluminum busbar 20 is placed in the aluminum busbar groove 13 and clamped by the bottom wall of the aluminum busbar groove 13 and the first buckle 14, there is no need to set additional clamps for the aluminum busbar 20. Only the bracket 10 and the individual battery need to be positioned to achieve the alignment of the aluminum busbar 20 and the individual battery.
[0040] Optionally, the depth of the aluminum strip groove 13 is greater than the thickness of the aluminum strip 20.
[0041] The depth of the aluminum strip groove 13 is greater than the thickness of the aluminum strip 20. When the aluminum strip 20 is assembled in the aluminum strip groove 13, there is a gap between the snap-fit electrical control board 30 and most areas of the aluminum strip 20. The aluminum strip 20 is only connected to the electrical control board 30 through a preset specific structure, which avoids the short circuit of the electrical control board 30 caused by accidental contact of the aluminum strip 20.
[0042] Please refer to the following: Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of the first aluminum busbar 21 provided in this embodiment of the present invention.
[0043] In some embodiments of this application, the aluminum busbar 20 includes a first aluminum busbar 21; the first aluminum busbar 21 includes a first row 211, a second row 212 and a buffer portion 213 connected to each other, the first row 211 and the second row 212 respectively correspond to the electrical conduction port 12 and are respectively used for electrical connection with adjacent batteries, the first row 211 and the second row 212 are connected by the buffer portion 213, and the buffer portion 213 is recessed toward the direction of the electronic control board 30.
[0044] During the operation of the battery pack, individual cells inevitably generate heat accumulation, and the aluminum busbar 20 also experiences heat generation. Since aluminum has a large coefficient of thermal expansion, existing technologies typically provide a certain amount of clearance space. In this embodiment, due to the aluminum busbar groove 13, the positional relationship between the aluminum busbars 20 is relatively fixed, making it difficult to allow the aluminum busbars 20 to expand freely by providing clearance space. The buffer portion 213 reduces the distance between the first row 211 and the second row 212 when the first aluminum busbar 21 expands, and the buffer portion 213 further recesses towards the electronic control board 30 to release the expansion amount of the first aluminum busbar 21.
[0045] Furthermore, the control board 30 also has a first probe hole 31; the first aluminum busbar 21 also includes a first probe 214, which is connected to the first busbar 211 or the second busbar 212. The first probe 214 extends away from the control board 30 and is inserted into the first probe hole 31.
[0046] The first probe 214 is inserted into the first probe hole 31, which on the one hand realizes the convenient electrical connection between the first aluminum busbar 21 and the electronic control board 30, and on the other hand can also play a certain role in positioning the relative position of the electronic control board 30 and the first aluminum busbar 21, which facilitates assembly.
[0047] Please refer to the following: Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of the second aluminum busbar 22 provided in this embodiment of the present invention.
[0048] In some embodiments of this application, the aluminum busbar 20 includes a second aluminum busbar 22, which includes a third row 221 and a fourth row 222 connected to each other. The third row 221 corresponds to the electrical conduction port 12 for electrical connection with the battery. The electronic control board 30 also has a clearance port 34. The fourth row 222 extends toward the electronic control board 30 and is accommodated in the clearance port 34. The fourth row 222 is used to output electrical energy from the battery or input electrical energy to the battery.
[0049] The setting of the clearance opening 34 facilitates the input or output of electrical energy, so that the projection of the second aluminum busbar 22 in the direction perpendicular to the control board 30 falls within the range of the bracket 10, reducing the cross-sectional size of the entire conductive plate device, which is beneficial to the application design of the conductive plate device.
[0050] Furthermore, the control board 30 also has a second probe hole 32; the second aluminum busbar 22 also includes a second probe 223, which is connected to the third busbar 221 or the fourth busbar 222. The second probe 223 extends away from the control board 30 and is inserted into the second probe hole 32.
[0051] The second probe 223 is inserted into the second probe hole 32, which on the one hand realizes the convenient electrical connection between the second aluminum busbar 22 and the electronic control board 30, and on the other hand can also play a certain role in positioning the relative position of the electronic control board 30 and the second aluminum busbar 22, which facilitates assembly.
[0052] In some embodiments of this application, the bracket 10 includes a frame 11 and a positioning rod 16. The positioning rod 16 protrudes from the frame 11. The frame 11 has an electrical conduction port 12. The aluminum busbar 20 is disposed between the frame 11 and the electrical control board 30. The electrical control board 30 also has a positioning hole 33, through which the positioning rod 16 passes.
[0053] The design of the positioning rod 16 and the positioning hole 33 allows the bracket 10 to be directly positioned and engaged with the electronic control board 30, which facilitates the assembly of the electronic control board 30.
[0054] Please refer to the following: Figure 6 and Figure 7 As shown, Figure 6 This is a schematic diagram of the structure of the conductive plate device provided in another embodiment of the present invention after removing the electrical control board 30 and part of the aluminum busbar 20; Figure 7 yes Figure 6 A magnified view of a portion of region B in the middle.
[0055] In some embodiments of this application, the bracket 10 includes a frame 11 and a second buckle 15. The frame 11 has an electrical conduction port 12, and the aluminum busbar 20 is disposed between the frame 11 and the electrical control board 30. The second buckle 15 includes a first part 151 and a second part 152. One end of the first part 151 is connected to the frame 11, and the other end of the first part 151 extends away from the frame 11 and is connected to the second part 152. The second part 152 clamps the aluminum busbar 20 between itself and the frame 11.
[0056] The structure of the second buckle 15 creates a certain distance between the second part 152 and the frame 11. By changing the shape and material of the first part 151, the elasticity of the first part 151 can be adjusted so that when the aluminum strip 20 is assembled into the bracket 10, the first part 151 deforms and the second part 152 makes some room. When the aluminum strip 20 is assembled into place, the first part 151 springs back and the second part 152 snaps in place to fix the aluminum strip 20.
[0057] To solve the above-mentioned technical problems, this utility model also discloses a battery pack, which includes: a plurality of individual cells and a conductive plate device of any of the above-mentioned types, wherein the individual cells are electrically connected through the conductive plate device.
[0058] Because the battery pack in this embodiment includes the aforementioned conductive plate device, it also possesses the technical effects of the aforementioned conductive plate device, namely, it enables monitoring of the battery pack's operating status while facilitating assembly.
[0059] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.
[0060] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.
[0061] Furthermore, the use of terms such as "first" and "second" in this utility model 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 by this utility model.
[0062] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the design concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A conductive plate device, characterized in that, include: The bracket has multiple perforated electrical conduction ports; An aluminum busbar is connected to the bracket, and the aluminum busbar is used to electrically connect to the battery via the electrical conduction port. An electronic control board is connected to the bracket, and an aluminum busbar is disposed between the bracket and the electronic control board, with the aluminum busbar electrically abutting against the electronic control board.
2. The conductive plate device according to claim 1, characterized in that, The bracket is also provided with an aluminum strip groove, which is connected to the electrical conduction port, and the aluminum strip is housed in the aluminum strip groove.
3. The conductive plate device according to claim 2, characterized in that, The bracket also includes a first buckle, which protrudes from the side wall of the aluminum strip channel and is spaced apart from the bottom wall of the aluminum strip channel. The first buckle and the bottom wall of the aluminum strip channel clamp the edge of the aluminum strip.
4. The conductive plate device according to claim 2, characterized in that, The depth of the aluminum strip groove is greater than the thickness of the aluminum strip.
5. The conductive plate device according to claim 1, characterized in that, The aluminum busbar includes a first aluminum busbar; The first aluminum busbar includes a first row, a second row, and a buffer portion that are connected to each other. The first row and the second row correspond to the electrical conduction ports and are respectively used for electrical connection with adjacent batteries. The first row and the second row are connected through the buffer portion, which is recessed toward the direction of the electronic control board.
6. The conductive plate device according to claim 5, characterized in that, The electronic control board also has a first probe hole; The first aluminum busbar also includes a first probe, which is connected to the first busbar or the second busbar. The first probe extends away from the direction close to the electronic control board and is inserted into the first probe hole.
7. The conductive plate device according to claim 1, characterized in that, The aluminum busbar includes a second aluminum busbar, which includes a third and a fourth row that are connected to each other. The third row corresponds to the electrical conduction port and is used for electrical connection with the battery. The electronic control board also has a clearance opening, and the fourth row extends toward the electronic control board and is accommodated in the clearance opening. The fourth row is used to output the battery's electrical energy or input electrical energy into the battery.
8. The conductive plate device according to claim 7, characterized in that, The electronic control board also has a second probe hole; The second aluminum busbar also includes a second probe, which is connected to the third or fourth busbar and extends away from the electrical control board and is inserted into the second probe hole.
9. The conductive plate device according to any one of claims 1-8, characterized in that, The bracket includes a frame and a positioning rod, the positioning rod protruding from the frame, the frame having the electrical conduction port, and the aluminum busbar being disposed between the frame and the electrical control board; The control board also has a positioning hole, through which the positioning rod passes.
10. The conductive plate device according to any one of claims 1-8, characterized in that, The bracket includes a frame and a second buckle. The frame has an electrical conduction port, and the aluminum busbar is disposed between the frame and the electrical control board. The second buckle includes a first part and a second part. One end of the first part is connected to the frame, and the other end of the first part extends away from the frame and is connected to the second part. The second part clamps the aluminum strip with the frame.
11. A battery pack, characterized in that, include: The conductive plate device according to any one of claims 1-10; Multiple individual battery cells are electrically connected through the conductive plate device.