Battery module

Abstract

The utility model discloses a kind of battery module, it is related to battery technical field, wherein, battery module includes support assembly, multiple electric core and two acquisition components;Support assembly includes two supports connected, two supports are enclosed to form containing cavity;Multiple electric core is located in containing cavity;Each acquisition component is located in a support, acquisition component includes acquisition plate and multiple connecting pieces, acquisition plate is located at the bottom end of support, multiple connecting pieces are located in the side of support, and electrically connected with acquisition plate, two acquisition components are used for connecting multiple electric core in series;The technical scheme provided by the utility model can reduce the volume of battery module, simplify the assembly process of battery module.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery module. Background Technology

[0002] In the construction of battery modules, the acquisition of cell parameters is crucial. Traditional acquisition methods often rely on sampling harnesses, which are usually attached to the side of the battery module. This results in the lateral space of the battery module being occupied, increasing its size and hindering the pursuit of miniaturization and lightweighting of the equipment. At the same time, the side sampling lines are prone to interference with various structural components during assembly, which not only makes assembly difficult but also easily damages the structural components and the sampling lines themselves. Utility Model Content

[0003] The main purpose of this utility model is to propose a battery module that aims to reduce the size of the battery module and simplify the assembly process.

[0004] To achieve the above objectives, the battery module proposed in this utility model includes:

[0005] A support assembly, the support assembly comprising two connected supports, the two supports enclosing a receiving cavity;

[0006] Multiple battery cells, wherein the multiple battery cells are disposed within the receiving cavity; and

[0007] Two acquisition components are provided, each of which is mounted on a bracket. Each acquisition component includes an acquisition plate and multiple connecting pieces. The acquisition plate is located at the bottom of the bracket, and the multiple connecting pieces are located on one side of the bracket and are electrically connected to the acquisition plate. The two acquisition components are used to connect multiple battery cells in series.

[0008] In one embodiment, the bracket is provided with a plurality of limiting grooves, and one end of each battery cell is inserted into one of the limiting grooves;

[0009] The bottom wall of the limiting groove has a through hole, and the battery cell is electrically connected to the connecting piece through the through hole.

[0010] In one embodiment, each of the brackets has a plurality of first mounting slots formed on the side facing away from the other bracket, and each of the connecting pieces is embedded in one of the first mounting slots.

[0011] In one embodiment, the connecting piece is welded to the acquisition plate.

[0012] In one embodiment, the acquisition component further includes a plurality of conductive lines, each of the conductive lines being connected to a connecting piece and the acquisition board.

[0013] In one embodiment, each of the brackets forms a plurality of second mounting slots on the side facing away from the other bracket, and each of the conductive wires is embedded in one of the second mounting slots.

[0014] In one embodiment, the bracket is formed with a plurality of connecting protrusions;

[0015] The bracket assembly also includes a plurality of locking members, each of which passes through a connecting protrusion of one bracket and is screwed to a connecting protrusion of another bracket.

[0016] In one embodiment, the battery module further includes a motherboard and two sets of ribbon cables. The motherboard is located at the top of the bracket assembly, and the two sets of ribbon cables are located at the same end of the bracket assembly. Each acquisition board is electrically connected to the motherboard through one of the ribbon cables.

[0017] In one embodiment, a groove is formed at the top of the support assembly, and the main board is disposed within the groove.

[0018] In one embodiment, the bracket has a plurality of third mounting slots and a plurality of detection holes, each of the third mounting slots communicating with a detection hole, and the plurality of detection holes communicating with the receiving cavity;

[0019] The acquisition component also includes multiple temperature sensors electrically connected to the acquisition board, each temperature sensor being embedded in a third mounting slot, and the detection end of each temperature sensor being located in a detection hole.

[0020] In the technical solution of this utility model, the acquisition board is set at the bottom of the bracket, and multiple battery cells are connected in series through connecting pieces. This can significantly reduce the size of the battery module while ensuring the normal function of the battery module, and also simplify the assembly process, improve the reliability of the product and production efficiency. Attached Figure Description

[0021] 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.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the battery module provided by this utility model;

[0023] Figure 2 An exploded view of the support frame and acquisition components;

[0024] Figure 3This is a schematic diagram of the support structure.

[0025] Explanation of icon numbers:

[0026] 100. Battery module; 1. Bracket; 11. Limiting groove; 12. Through hole; 13. First mounting groove; 14. Second mounting groove; 15. Connecting protrusion; 16. Third mounting groove; 17. Detection hole; 2. Battery cell; 3. Acquisition board; 4. Connecting piece; 5. Conductive wire; 6. Main board; 7. Ribbon cable; 8. Temperature sensor.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] 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 scope of protection of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are 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 with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] This utility model proposes a battery module 100.

[0032] Please see Figure 1 and Figure 2In one embodiment of the present invention, the battery module 100 includes a support assembly, a plurality of battery cells 2, and two acquisition assemblies; the support assembly includes two connected supports 1, which together form a receiving cavity; the plurality of battery cells 2 are disposed in the receiving cavity; each acquisition assembly is disposed on a support 1, and the acquisition assembly includes an acquisition plate 3 and a plurality of connecting pieces 4. The acquisition plate 3 is disposed at the bottom end of the support 1, and the plurality of connecting pieces 4 are disposed on one side of the support 1 and electrically connected to the acquisition plate 3. The two acquisition assemblies are used to connect the plurality of battery cells 2 in series.

[0033] The bracket 1 can be made of a material with good mechanical strength and insulation properties, such as glass fiber reinforced plastic, to ensure that it can stably support the battery cell 2 during the operation of the battery module 100 and effectively prevent electrical faults such as short circuits between the battery cells 2. The two brackets 1 can be connected by bolts, snap-fit ​​connections, or welding. In this embodiment, each bracket 1 has multiple connecting protrusions 15, one of which has a threaded hole. The bracket assembly also includes multiple locking elements, each of which passes through a connecting protrusion 15 of one bracket 1 and is screwed to the connecting protrusion 15 of another bracket 1. The locking elements can be high-strength bolts, screws, or studs, and their material can be stainless steel or alloy steel to ensure the strength and durability of the connection. During installation, the locking element passes through the connecting protrusion 15 of one bracket 1 and is then threaded to the connecting protrusion 15 of the other bracket 1. By tightening the locking element, the two brackets 1 are tightly connected together, forming a stable frame structure.

[0034] The acquisition board 3 is mounted at the bottom of the bracket 1. Its material can be a copper alloy or aluminum alloy, possessing excellent conductivity and electromagnetic interference resistance. The main function of the acquisition board 3 is to serve as a convergence point for signal acquisition, centrally processing and transmitting the electrical signals from each battery cell 2. The acquisition board 3 is connected to the bracket 1 via multiple screws.

[0035] The shape and size of the connecting piece 4 can be customized according to the arrangement and size of the battery cell 2, and its material is also selected from materials with good conductivity, such as copper foil or aluminum foil.

[0036] In the technical solution of this utility model, the acquisition board 3 is set at the bottom of the bracket 1, and multiple battery cells 2 are connected in series through the connecting piece 4. Under the premise of ensuring the normal function of the battery module 100, the volume of the battery module 100 is significantly reduced, the assembly process is simplified, and the reliability and production efficiency of the product are improved.

[0037] Specifically, in one embodiment of this utility model, please refer to... Figure 3The bracket 1 is provided with multiple limiting grooves 11, and one end of each battery cell 2 is inserted into a limiting groove 11. A through hole 12 is formed in the bottom wall of the limiting groove 11, through which the battery cell 2 is electrically connected to the connecting piece 4. The size of the limiting groove 11 is adapted to one end of the battery cell 2. In actual production, the limiting groove 11 can be precisely manufactured on the bracket 1 by machining to ensure the positional and dimensional accuracy of each limiting groove 11. The shape of the limiting groove 11 can be designed as a semi-circle, square, or other shape that matches the shape of the end of the battery cell 2, to achieve stable positioning of the battery cell 2. Through the constraint of the limiting groove 11, the position of the battery cell 2 on the bracket 1 is precisely fixed, preventing the battery cell 2 from shaking or shifting during the operation of the battery module 100. The bottom wall of the limiting groove 11 also has a through hole 12, the position of which corresponds to the position of the electrode post or electrode plate of the battery cell 2. During installation, one end of the connecting piece 4 passes through the through hole 12 in the bottom wall of the limiting groove 11 and is welded or otherwise electrically connected to the electrode post or electrode sheet of the battery cell 2. By setting the limiting groove 11 and the through hole 12 on the bracket 1, the battery cell 2 is stably fixed and conveniently electrically connected, which not only improves the reliability and stability of the battery module 100, but also optimizes its spatial layout.

[0038] To improve space utilization, please refer to one embodiment of this utility model. Figure 1 and Figure 2 Each bracket 1 has multiple first mounting slots 13 formed on its side facing away from another bracket 1, and each connecting piece 4 is embedded in one of the first mounting slots 13. The size of the first mounting slot 13 is adapted to the shape and size of the connecting piece 4. The first mounting slot 13 can be precisely manufactured on the bracket 1 by machining to ensure its positional and dimensional accuracy. The shape of the first mounting slot 13 can be designed as a strip, rectangle, or other shape that matches the shape of the connecting piece 4, so as to facilitate the embedding and fixing of the connecting piece 4. The first mounting slot 13 can effectively constrain the position of the connecting piece 4, preventing it from shifting when the battery module 100 is subjected to vibration or impact, thereby ensuring a stable and reliable electrical connection between the connecting piece 4 and the acquisition board 3 and the battery cell 2. Embedding the connecting piece 4 in the first mounting slot 13 allows the connecting piece 4 to be tightly integrated with the bracket 1 in space, optimizing the internal spatial layout of the battery module 100.

[0039] It is understood that the distance between different connecting pieces 4 and the acquisition plate 3 is different, and the connection method between the connecting pieces 4 and the acquisition plate 3 at different positions is also different. For the connecting pieces 4 that are closer to the acquisition plate 3, please refer to one embodiment of this utility model. Figure 1 and Figure 2The connecting piece 4 is welded to the acquisition board 3. For the connecting pieces 4 near the acquisition board 3, their taps are directly welded to the acquisition board 3 through holes. Specifically, through holes are designed on the acquisition board 3 corresponding to the positions of each connecting piece 4, and the size of the through holes matches the size of the taps on the connecting piece 4. After the taps of the connecting pieces 4 pass through the through holes on the acquisition board 3, they are firmly welded to the acquisition board 3 using a welding process. This welding method can use common welding processes such as tin soldering and brazing to ensure the strength and conductivity of the weld.

[0040] For the connecting piece 4, which is relatively far from the acquisition plate 3, please refer to one embodiment of this utility model. Figure 1 and Figure 2 The data acquisition component also includes multiple conductive wires 5, each of which connects to a connecting piece 4 and a data acquisition board 3. The conductive wires 5 are made of materials with good conductivity and flexibility, such as multi-strand twisted copper wire, to accommodate minor displacements and vibrations that may occur inside the battery module 100. Both ends of the conductive wires 5 are connected to the connecting piece 4 and the data acquisition board 3 using crimped or soldered terminals to ensure reliable connection. During actual installation, the routing and length of the conductive wires 5 are rationally planned according to the distance and spatial layout between the connecting piece 4 and the data acquisition board 3 to avoid signal interference caused by excessively long conductive wires or excessive stress on the connecting piece 4 due to excessively short conductive wires 5.

[0041] Specifically, in one embodiment of this utility model, please refer to... Figure 1 and Figure 2 Each bracket 1 has multiple second mounting slots 14 formed on its side facing away from another bracket 1, and each conductive wire 5 is embedded in one of the second mounting slots 14. The size of the second mounting slot 14 is adapted to the shape and size of the conductive wire 5. The second mounting slot 14 can be precisely manufactured on the bracket 1 by machining to ensure its positional and dimensional accuracy. The shape of the second mounting slot 14 can be designed as a strip, rectangle, or other shape that matches the shape of the conductive wire 5, so as to facilitate the embedding and fixing of the conductive wire 5. The second mounting slot 14 can effectively constrain the position of the conductive wire 5, preventing it from shifting when the battery module 100 is subjected to vibration or impact, thereby ensuring a stable and reliable electrical connection between the conductive wire 5 and the connecting piece 4 and the acquisition board 3. Embedding the conductive wire 5 in the second mounting slot 14 allows the conductive wire 5 to be tightly integrated with the bracket 1 in space, optimizing the internal spatial layout of the battery module 100. This compact structural design helps to reduce the overall volume of the battery module 100.

[0042] Furthermore, in one embodiment of this utility model, please refer to... Figure 1The battery module 100 also includes a main board 6 and two sets of ribbon cables 7. The main board 6 is located at the top of the bracket assembly, and the two sets of ribbon cables 7 are located at the same end of the bracket assembly. Each acquisition board 3 is electrically connected to the main board 6 via a ribbon cable 7. The main board 6 is a battery management system (BMS), which integrates various advanced electronic components and intelligent algorithms, specifically for the precise management and protection of the battery cells 2 of the battery module 100. The main functions of the BMS include monitoring the voltage, current, and temperature of the battery cells 2, calculating the charge, implementing equalization control, and executing protection measures to ensure that the battery module 100 can operate safely, stably, and efficiently under various operating conditions. The two sets of ribbon cables 7 are located at the same end of the bracket assembly. These ribbon cables 7 use high-quality flexible flat cables with excellent electrical and mechanical properties. One end of each set of ribbon cables 7 is connected to a dedicated connector on the acquisition board 3, and the other end is connected to the corresponding interface on the BMS. This connection method not only ensures the stability and reliability of signal transmission but also makes the wiring inside the entire battery module 100 neater and more organized.

[0043] To further improve space utilization, in one embodiment of this invention, a groove is formed at the top of the bracket assembly, and the motherboard 6 is disposed within the groove. The groove is formed by two brackets 1, and its size is adapted to the size of the motherboard 6. The groove effectively constrains the position of the motherboard 6, preventing it from shifting when the battery module 100 is subjected to vibration or impact, thereby ensuring a stable and reliable electrical connection between the motherboard 6 and the acquisition component. Embedding the motherboard 6 into the groove at the top of the bracket assembly allows for a tight spatial integration between the motherboard 6 and the bracket assembly, optimizing the internal spatial layout of the battery module 100.

[0044] Furthermore, in one embodiment of this utility model, please refer to... Figure 1 and Figure 2The bracket 1 has multiple third mounting slots 16 and multiple detection holes 17. Each third mounting slot 16 communicates with a detection hole 17, and all detection holes 17 communicate with the receiving cavity. The acquisition assembly also includes multiple temperature sensors 8 electrically connected to the acquisition board 3. Each temperature sensor 8 is embedded in a third mounting slot 16, and the detection end of each temperature sensor 8 is located in a detection hole 17. The third mounting slots 16 can be precisely manufactured on the bracket 1 by machining to ensure their positional and dimensional accuracy. The size and position of the detection holes 17 match the third mounting slots 16 and correspond to the positions of the battery cells 2 in the receiving cavity, so that the temperature sensors 8 can accurately monitor the temperature of the battery cells 2. The temperature sensors 8 are selected as high-precision, fast-response thermistors or semiconductor temperature sensors, which can monitor the temperature changes of the battery cells 2 in real time. By setting multiple detection holes 17 and third mounting slots 16 on the bracket 1, and embedding temperature sensors 8 in each third mounting slot 16, real-time monitoring of the temperature of multiple battery cells 2 inside the battery module 100 can be achieved. This helps to detect abnormal temperatures in cell 2 in a timely manner, preventing battery performance degradation or safety hazards caused by excessively high or low temperatures. The detection end of temperature sensor 8 is located inside detection hole 17, directly contacting the environment surrounding cell 2, and can accurately reflect the actual temperature of cell 2.

[0045] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and 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 battery module, characterized in that, include: A support assembly, the support assembly comprising two connected supports, the two supports enclosing a receiving cavity; Multiple battery cells are disposed within the receiving cavity; as well as Two acquisition components are provided, each of which is mounted on a bracket. Each acquisition component includes an acquisition plate and multiple connecting pieces. The acquisition plate is located at the bottom of the bracket, and the multiple connecting pieces are located on one side of the bracket and are electrically connected to the acquisition plate. The two acquisition components are used to connect multiple battery cells in series.

2. The battery module as described in claim 1, characterized in that, The bracket is provided with multiple limiting slots, and one end of each battery cell is inserted into one of the limiting slots; The bottom wall of the limiting groove has a through hole, and the battery cell is electrically connected to the connecting piece through the through hole.

3. The battery module as described in claim 1, characterized in that, Each of the brackets has a plurality of first mounting slots formed on the side facing away from the other bracket, and each of the connecting pieces is embedded in one of the first mounting slots.

4. The battery module as described in claim 1, characterized in that, The connecting piece is welded to the acquisition board.

5. The battery module as described in claim 1, characterized in that, The acquisition component also includes multiple conductive lines, each of which connects to a connecting piece and the acquisition board.

6. The battery module as described in claim 5, characterized in that, Each of the brackets forms a plurality of second mounting slots on the side facing away from the other bracket, and each conductive wire is embedded in a second mounting slot.

7. The battery module as described in any one of claims 1 to 6, characterized in that, The bracket has multiple connecting protrusions; The bracket assembly also includes a plurality of locking members, each of which passes through a connecting protrusion of one bracket and is screwed to a connecting protrusion of another bracket.

8. The battery module as described in any one of claims 1 to 6, characterized in that, The battery module also includes a motherboard and two sets of ribbon cables. The motherboard is located at the top of the bracket assembly, and the two sets of ribbon cables are located at the same end of the bracket assembly. Each acquisition board is electrically connected to the motherboard through one of the ribbon cables.

9. The battery module as described in claim 8, characterized in that, The top of the bracket assembly has a groove, and the motherboard is disposed in the groove.

10. The battery module as described in any one of claims 1 to 6, characterized in that, The bracket has multiple third mounting slots and multiple detection holes, each of the third mounting slots is connected to one of the detection holes, and all of the multiple detection holes are connected to the receiving cavity. The acquisition component also includes multiple temperature sensors electrically connected to the acquisition board, each temperature sensor being embedded in a third mounting slot, and the detection end of each temperature sensor being located in a detection hole.

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