Lithium battery module

Abstract

The invention discloses a lithium battery module, and relates to the technical field of batteries, the lithium battery module comprises a box body, a battery cell module and a conductive assembly; the battery cell module is arranged in the box body; the conductive component is arranged in the box body, is positioned at the top of the battery cell module, and is electrically connected with the battery cell module; the conductive assembly comprises a plurality of busbars which are electrically connected with one another, and the plurality of busbars are stacked in the height direction of the box body. According to the technical scheme, the size of the lithium battery module can be reduced, manufacturing is convenient, and the cost of the lithium battery module is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a lithium battery module. Background Art

[0002] A lithium battery module is a module that connects the positive and negative electrodes of the battery cell in series or in parallel through a conductor and is reinforced into one piece through fasteners. Among them, the conductor is an electrical structural component with good conductivity such as copper and aluminum, and has a certain cross-sectional area. In some application scenarios, the charging and discharging current of the battery cell will be relatively large. Since the current capacity is positively correlated with the cross-sectional area of ​​the conductor, the cross-sectional area of ​​the conductor usually needs to be designed to be larger, which increases the cost of the lithium battery module and makes manufacturing difficult. Summary of the invention

[0003] The main purpose of the present invention is to provide a lithium battery module, aiming to reduce the volume of the lithium battery module, facilitate manufacturing, and reduce the cost of the lithium battery module.

[0004] To achieve the above object, the lithium battery module proposed in the present invention comprises: Box; A battery cell module is disposed in the box; A conductive component is arranged in the box and located on the top of the battery cell module, and the conductive component is electrically connected to the battery cell module; the conductive component includes a plurality of bus bars electrically connected to each other, and the plurality of bus bars are stacked along the height direction of the box.

[0005] In one embodiment, a plurality of the battery cell modules are provided, and the plurality of the battery cell modules are arranged side by side along the width direction of the box body, and two adjacent battery cell modules are electrically connected via a first conductive copper busbar.

[0006] In one embodiment, the conductive components are provided in plurality, and the plurality of conductive segments are arranged in a plurality of rows along the length direction of the box.

[0007] In one embodiment, the battery cell module includes a shell and a plurality of battery packs, the plurality of battery packs are disposed in the shell and spaced apart along the length direction of the box, a plurality of conductive segments are disposed in the shell, and two adjacent battery packs are electrically connected via a conductive segment.

[0008] In one embodiment, the shell includes a cover plate and a first side plate, a second side plate, a first end plate and a second end plate connected to the cover plate, the first side plate and the second side plate are arranged opposite to each other along the width direction of the box body, the first end plate and the second end plate are arranged opposite to each other along the length direction of the box body, and the inner wall surface of at least one of the first side plate, the second side plate, the first end plate and the second end plate is provided with a heat conductor.

[0009] In one embodiment, a partition is disposed between two adjacent battery packs, the partition having a top wall and opposite first and second side walls, and at least one of the top wall, the first side wall and the second side wall is provided with a first insulating member; And / or, the battery pack includes a plurality of battery cells, the plurality of battery cells are arranged along the length direction of the box body, and a second insulating member is arranged between two adjacent battery cells.

[0010] In one embodiment, the lithium battery module also includes a battery management module, which is disposed in the box and located on one side of the first end plate in the length direction of the box. The battery management module is electrically connected to the conductive component, and the battery management module is used to manage the charging of the battery cell module.

[0011] In one embodiment, the battery management module includes a mounting component and a battery management component mounted on the mounting component; the first end plate, the first side plate and the second side plate are enclosed to form a mounting groove for mounting the mounting component.

[0012] In one embodiment, the mounting assembly includes a support seat and a mounting plate, the support seat is installed in the mounting groove, the support seat is protrudingly provided with a first connecting portion, the mounting plate has a third side wall and a fourth side wall relative to each other along the length direction of the box body, the third side wall is protrudingly provided with a second connecting portion, the second connecting portion is connected to the first connecting portion to install the mounting plate on the support seat, and the battery management assembly is arranged on the fourth side wall.

[0013] In one embodiment, the lithium battery module further includes a connecting component, one end of which is disposed in the box body and connected to the conductive component, and the other end of which extends out of the box body for electrically connecting to a load.

[0014] The technical solution of the present invention is to set a battery module and a conductive component in a box. The conductive component is located on the top of the battery module and is electrically connected to the battery module to collect the current of the battery module and distribute the current to different loads. On the basis of achieving current distribution, the conductive component is split into multiple buses with smaller thicknesses and stacked for use. Compared with existing conductors, the stacked conductive components can have the same cross-sectional area and enjoy sufficient current flow capacity to meet the charging and discharging requirements of the battery module, and achieve the effect of reducing size and volume. In addition, the rigidity of the bus with smaller thickness is lower. On the one hand, it is easy to stack and assemble, and on the other hand, it is easy to be electrically connected to the battery module and ensure the reliability of the connection between the two. At the same time, since the conductive component is composed of multiple stacked buses, there is no need to design additional holes, grooves and other structures during the processing of the conductive component, thereby reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 A schematic structural diagram of an embodiment of a lithium battery module provided by the present invention; Figure 2 for Figure 1 Exploded diagram of Figure 3 for Figure 1 Schematic diagram of the structure of the battery cell module; Figure 4 for Figure 3 Schematic diagram of the structure of the battery pack; Figure 5 for Figure 4 A partial enlarged view of the middle A; Figure 6 for Figure 1 Schematic diagram of the battery management module.

[0018] Description of Figure Numbers: 100, lithium battery module; 1, box body; 11, box body; 111, first heat dissipation hole; 112, mounting hole; 12, box cover; 121, second heat dissipation hole; 2, battery cell module; 21, shell; 211, cover plate; 212, first side plate; 213, second side plate; 214, first end plate; 215, second end plate; 22, battery pack; 221, battery cell; 23, heat conductive member; 24, partition; 25, first insulating member; 26, second insulating member; 3, conductive component; 31, conductive Segment; 311, bus; 4, battery management module; 41, mounting assembly; 411, support seat; 412, mounting plate; 4121, third side wall; 4122, fourth side wall; 413, first connecting part; 414, second connecting part; 415, first connecting hole; 416, second connecting hole; 42, battery management assembly; 43, adapter assembly; 5, mounting groove; 6, first conductive copper bus; 7, connecting assembly; 71, second conductive copper bus; 72, high-voltage connector; 73, insulating column.

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] A lithium battery module is a module that connects the positive and negative electrodes of the battery cell in series or in parallel through a conductor and is reinforced into one piece through fasteners. Among them, the conductor is an electrical structural component with good conductivity such as copper and aluminum, and has a certain cross-sectional area. In some application scenarios, the charging and discharging current of the battery cell will be relatively large. Since the current capacity is positively correlated with the cross-sectional area of ​​the conductor, the cross-sectional area of ​​the conductor usually needs to be designed to be larger, which increases the cost of the lithium battery module and makes manufacturing difficult.

[0022] To this end, the present invention proposes a lithium battery module 100 , which aims to reduce the volume of the lithium battery module 100 , facilitate manufacturing, and reduce the cost of the lithium battery module 100 .

[0023] Reference Figures 1 to 5 In one embodiment of the present invention, the lithium battery module 100 includes: Box 1; The battery cell module 2 is arranged in the box body 1; A conductive component 3 is arranged in the box body 1 and located on the top of the battery cell module 2. The conductive component 3 is electrically connected to the battery cell module 2. The conductive component 3 includes a plurality of bus bars 311 electrically connected to each other. The plurality of bus bars 311 are stacked along the height direction of the box body 1.

[0024] In this embodiment, the box 1 is used to install the devices of the lithium battery module 100, such as the battery cell module 2 and the conductive component 3, etc., and plays the role of assembling and protecting these devices. It can be understood that there are many forms of implementation of the box 1. In one embodiment, the box 1 includes a box body 11 and a box cover 12. The box body 11 has a cavity and an installation port connected to the cavity. The battery cell module 2 and the conductive component 3 are respectively arranged in the cavity, and the box cover 12 is arranged on the installation port to encapsulate the battery cell module 2 and the conductive components.

[0025] Optionally, at least one of the box body 11 and the box cover 12 is provided with heat dissipation holes. Figure 2The multiple side walls of the box body 11 are respectively provided with first heat dissipation holes 111, and the box cover 12 is provided with second heat dissipation holes 121. With such a design, the heat generated by the electrical components such as the battery module 2 and the conductive component 3 during operation can be dissipated simultaneously through the first heat dissipation holes 111 and the second heat dissipation holes 121, thereby achieving efficient heat dissipation, avoiding excessive heat accumulation in the box body 1, and extending the life of the electrical components.

[0026] Optionally, the cross-sectional shape of the box body 1 is generally not limited. The cross-sectional shape of the box body 1 of this embodiment is rectangular, and the rectangular box body 1 can not only provide a large enough cavity to accommodate more devices, but also facilitate the assembly of the lithium battery module 100 on electric vehicles and other equipment.

[0027] The battery cell module 2 is used to store or release electric energy. The battery cell module 2 is arranged in the box body 1. Optionally, the battery cell module 2 may include but is not limited to a shell 21 and a plurality of battery cells 221. During processing, the plurality of battery cells 221 may be integrated together in a shell 21 to form a relatively independent battery cell module 2, and then the integrated battery cell module 2 is installed in the box body 1 to achieve the integration and installation of the battery cell module 2. Among them, the installation method of the battery cell module 2 in the box body 1 may be but is not limited to glue mounting, card mounting, welding mounting, etc. For example, the battery cell module 2 is carded in the box body 1. When the battery cell module 2 is damaged, the battery cell module 2 can be removed from the box body 1 for maintenance or replacement; or, the battery cell module 2 is welded in the box body 1, which can improve the installation stability of the battery cell module 2, thereby improving the power supply stability of the battery cell module 2.

[0028] The conductive component 3 is arranged in the box 1 and is located at the top of the battery module 2. The input end of the conductive component 3 is electrically connected to the output end of the battery module 2, and the output end of the conductive component 3 is used to be electrically connected to the load. It can be understood that the conductive component 3 is used as the electrical connection point of all the battery cells 221 in the battery module 2, which is responsible for collecting the current of each battery cell 221 and distributing the collected current to different loads, such as motors, controllers, etc., to achieve different power supplies; at the same time, the conductive component 3 helps to maintain the voltage balance of each battery cell 221 in the battery module 2, and avoids the battery module 2 from being overcharged or over-discharged. In addition, since the conductive component 3 is located at the top of the battery module 2, the conductive component 3 can serve as a supporting structure for the battery module 2, improve the mechanical stability of the battery module 2, and enhance the overall structural strength of the battery module 2.

[0029] On the basis of realizing current distribution, the conductive component 3 is split into a plurality of busbars 311, and the plurality of busbars 311 are electrically connected to each other and stacked along the height direction of the box 1, and two adjacent busbars 311 are fixed by soldering. It should be pointed out that the thickness of each busbar 311 of the present embodiment can be as low as 2 mm, so that the thickness after stacking the plurality of busbars 311, that is, the thickness of the conductive component 3 can be close to the thickness of one busbar 311 in the prior art, so that the volume of the lithium battery module 100 can be increased in the height direction of the box 1 without too much, and the volume of the lithium battery module 100 can be reduced in the length direction of the box 1. At the same time, the cross-sectional area of ​​the plurality of busbars 311 can also reach the cross-sectional area of ​​a large-sized busbar 311 in the prior art by adding the cross-sectional area, so as to achieve the effect of bearing strong overcurrent capacity. That is to say, by splitting the conductive component 3 into a plurality of bus bars 311 of smaller thickness and stacking them, the conductive component 3 can be designed to have a smaller cross-sectional area, thereby reducing the volume of the lithium battery module 100 and having a larger current flow capacity to meet the charging and discharging requirements of the battery cell module 2.

[0030] The technical solution of the present invention is to set a battery module 2 and a conductive component 3 in a box body 1. The conductive component 3 is located at the top of the battery module 2 and is electrically connected to the battery module 2 to collect the current of the battery module 2 and distribute the current to different loads. On the basis of achieving current distribution, the conductive component 3 is split into a plurality of busbars 311 with smaller thicknesses and stacked for use. Compared with the existing conductors, the stacked conductive component 3 can have the same cross-sectional area and enjoy sufficient current flow capacity to meet the charging and discharging requirements of the battery module 2, and achieve the effect of reducing size and volume. In addition, the rigidity of the busbar 311 with smaller thickness is lower. On the one hand, it is easy to stack and assemble, and on the other hand, it is easy to be electrically connected to the battery module 2 and ensure the reliability of the connection between the two. At the same time, since the conductive component 3 is stacked by a plurality of busbars 311, there is no need to design additional holes, grooves and other structures when processing the conductive component 3, thereby reducing manufacturing costs.

[0031] Reference Figure 1 and Figure 2 In one embodiment of the present invention, a plurality of the battery cell modules 2 are provided, and the plurality of the battery cell modules 2 are arranged side by side along the width direction of the box body 1 , and two adjacent battery cell modules 2 are electrically connected via a first conductive copper bus 6 .

[0032] In order to improve the endurance of the lithium battery module 100, in this embodiment, the number of the battery cell modules 2 is multiple. The multiple battery cell modules 2 are arranged side by side along the width direction of the box body 1 to achieve a reasonable layout of the multiple battery cell modules 2 and achieve the purpose of reducing the volume of the lithium battery module 100. As a second example, refer to Figure 2, the number of battery cell modules 2 is two, and the two battery cell modules 2 are arranged side by side and in parallel along the width direction of the box body 1. The two battery cell modules 2 are electrically connected through a first conductive copper bus 6. Specifically, the first conductive copper bus 6 is implemented by a soft copper bus. One end of the soft copper bus is connected to the bus 311 at the top of one of the battery cell modules 2, and the other end of the soft copper bus is connected to the bus 311 at the top of the other battery cell module 2. Such a design can avoid the connection between the two battery cell modules 2 through electrical wires, thereby improving the convenience of connecting the two battery cell modules 2. The soft copper bus is made of pure copper or high-purity copper alloy, has excellent conductivity, and realizes stable communication between the two battery cell modules 2.

[0033] Reference Figure 3 In one embodiment of the present invention, the conductive component 3 includes a plurality of conductive segments 31 , and the plurality of conductive segments 31 are arranged in a plurality of rows along the length direction of the box body 1 .

[0034] In this embodiment, there are nine conductive segments 31, which are arranged in two rows along the length direction of the box. By splitting the conductive component 3 into a plurality of conductive segments 31, the conductive component 3 can be manufactured conveniently, thereby improving the processing convenience of the conductive component 3.

[0035] Reference Figure 3 In one embodiment of the present invention, the battery cell module 2 includes a shell 21 and a plurality of battery packs 22. The plurality of battery packs 22 are disposed in the shell 21 and are spaced apart along the length direction of the box body 1. The plurality of conductive segments 31 are disposed in the shell 21, and two adjacent battery packs 22 are electrically connected via one conductive segment 31.

[0036] It is understandable that the increase in the number of cells 221 of the cell module 2 will increase the output voltage and capacity of the lithium battery module 100, but it will also bring some negative effects. First, the increase in the number of cells 221 will increase the number of connections inside the cell module 2, thereby increasing the risk of failure of the cell module 2; second, the increase in the number of cells 221 will cause the accumulation of heat inside the cell module 2 to be difficult to dissipate, thereby causing the cell module 2 to overheat or even explode.

[0037] To improve the above situation, in this embodiment, the battery module 2 is implemented by a shell 21 and a plurality of battery packs 22. The shell 21 is installed in the box body 1, and the plurality of battery packs 22 are installed in the shell 21 respectively, and are arranged at intervals along the length direction of the box body 1 to achieve a reasonable layout of the plurality of battery packs 22. It can be understood that in this embodiment, by splitting all the battery cells 221 of the battery module 2 into a plurality of battery packs 22, when the number of battery cells 221 of the battery module 2 is too large, all the battery cells 221 of the battery module 2 are avoided from being arranged together, thereby reducing the risk of failure of the battery module 2. Moreover, two adjacent battery packs 22 are electrically connected through a conductive segment 31, which can improve the convenience of electrical connection of different battery packs 22. Since different battery packs 22 are electrically connected through the conductive segment 31, the connected electrical wires can be reduced, thereby reducing the volume of the battery module 2 and saving the manufacturing cost of the lithium battery module 100.

[0038] Reference Figure 3 In one embodiment of the present invention, the shell 21 includes a cover plate 211 and a first side plate 212, a second side plate 213, a first end plate 214 and a second end plate 215 connected to the cover plate 211, the first side plate 212 and the second side plate 213 are arranged opposite to each other along the width direction of the box body 1, the first end plate 214 and the second end plate 215 are arranged opposite to each other along the length direction of the box body 1, and the inner wall surface of at least one of the first side plate 212, the second side plate 213, the first end plate 214 and the second end plate 215 is provided with a heat conductor 23.

[0039] In this embodiment, one end of the first side plate 212, the second side plate 213, the first end plate 214 and the second end plate 215 are connected to the cover plate 211, and the other ends are abutted against the inner bottom wall of the box body 1 to form a cavity, and the battery cell module 2 and the conductive component 3 are installed in the cavity, and the conductive component 3 is located between the battery cell module 2 and the cover plate 211. By providing the housing 21, the battery cell module 2 and the conductive component 3 form an integrated structure, which can be assembled in the box body 1 as a whole, thereby improving the assembly efficiency of the lithium battery module 100.

[0040] On the basis of the above structure, in order to dissipate the heat generated by the battery cell module 2 when it is working, the inner wall surface of at least one of the first side plate 212, the second side plate 213, the first end plate 214, and the second end plate 215 is provided with a heat conducting member 23. Figure 3, the inner wall surfaces of the first side plate 212, the second side plate 213, the first end plate 214, and the second end plate 215 are respectively provided with heat conducting members 23. Optionally, the heat conducting member 23 may include at least one of an epoxy plate and a thermal pad. Specifically, the heat conducting member 23 on the inner wall surface of the first side plate 212 and the second side plate 213 is a thermal pad, which is arranged toward the side of the battery module 2. The thermal pad is a special material, which is mainly used to fill the gap between the first side plate 212 and the battery module 2, and the second side plate 213 and the battery module 2 to improve the heat transfer efficiency. It is usually made of thermally conductive silicone, has good thermal conductivity and certain insulation, can effectively reduce contact thermal resistance, improve heat dissipation efficiency, and thus protect the battery module 2 from overheating damage. The heat conducting member 23 on the inner wall surface of the first end plate 214 and the second end plate 215 is an epoxy plate, which is arranged toward the front of the battery module 2. Epoxy board is a thermosetting plastic, mainly composed of epoxy resin and curing agent, with excellent electrical insulation performance, mechanical properties and chemical corrosion resistance, suitable for insulation and structural support of battery module 2.

[0041] Reference Figure 3 In one embodiment of the present invention, a partition 24 is arranged between two adjacent battery groups 22, and the partition 24 has a top wall and a first side wall and a second side wall opposite to each other, and at least one of the top wall, the first side wall and the second side wall is provided with a first insulating member 25.

[0042] In this embodiment, two adjacent battery packs 22 are separated by a partition 24. The partition 24 has a top wall, a first side wall and a second side wall, and at least one of the top wall, the first side wall and the second side wall of the partition 24 is provided with a first insulating member 25. As a fourth example, the top wall, the first side wall and the first side wall of the partition 24 are respectively provided with a first insulating member 25. The first insulating member 25 of the top wall of the partition 24 can be implemented by Mylar Film, which is a polyester film commonly used for insulation and protection of electronic products. It has the characteristics of good electrical insulation performance, high temperature resistance, chemical corrosion resistance, etc., and is often used in occasions requiring high insulation performance, such as insulation between the conductive component 3 and the partition 24. The first insulating member 25 of the first side wall and the second side wall of the partition 24 can be implemented by epoxy board, which is a thermosetting plastic mainly composed of epoxy resin and curing agent, with excellent electrical insulation performance, mechanical properties and chemical corrosion resistance, and is suitable for insulation and structural support of the battery pack 22.

[0043] Reference Figure 3 In one embodiment of the present invention, the battery pack 22 includes a plurality of battery cells 221 , and the plurality of battery cells 221 are arranged along the length direction of the box body 1 , and a second insulating member 26 is provided between two adjacent battery cells 221 .

[0044] In this embodiment, the battery pack 22 can be implemented by using a plurality of battery cells 221 , and the plurality of battery cells 221 are arranged along the length direction of the box body 1 to achieve a reasonable layout of the battery pack 22 .

[0045] It is understandable that the number of cells 221 directly affects the output voltage and capacity of the battery pack 22, but the more cells 221 there are, the better. The number of cells 221 is generally limited to about dozens, and the specific number depends on the cell 221 model and module design.

[0046] In order to dissipate the heat of the battery pack, a second insulating member 26 is provided between two adjacent battery cells. The second insulating member 26 can be implemented by an epoxy board, which is a thermosetting plastic mainly composed of epoxy resin and curing agent, has excellent electrical insulation performance, mechanical properties and chemical corrosion resistance, and is suitable for insulation and structural support between two battery packs 22.

[0047] Reference Figure 6 In one embodiment of the present invention, the lithium battery module 100 also includes a battery management module 4, which is disposed in the box body 1 and is located on one side of the first end plate 214 in the length direction of the box body 1. The battery management module 4 is electrically connected to the conductive component 3, and the battery management module 4 is used to manage the charging of the battery cell module 2.

[0048] In this embodiment, the input end of the battery management module 4 is electrically connected to the conductive component 3, and the output end of the battery management module 4 is used to be electrically connected to the control device. The battery management module 4 is the core component of the lithium battery module 100. Its main function is to manage the charging and discharging of the battery module 2 based on the control device, so that the battery module 2 is always kept in the optimal state, thereby ensuring the extension of the life of the battery module 2 and the improvement of safety and reliability. The battery management module 4 is installed in the box body 1 and is located on one side of the first end plate 214 in the length direction of the box body 1. In this way, the layout of the battery management module 4 and the battery module 2 can be realized in the length direction of the box body 1, and the volume of the lithium battery module 100 can be reduced in the length direction of the box body 1.

[0049] Reference Figure 6 In one embodiment of the present invention, the battery management module 4 includes a mounting component 41 and a battery management component 42 mounted on the mounting component 41; the first end plate 214, the first side plate 212 and the second side plate 213 enclose a mounting groove 5 for installing the mounting component 41.

[0050] In this embodiment, the battery management module 4 includes a battery management component 42. The battery management component 42 is an electronic device for managing and monitoring the performance and status of the battery module 2. Its functions include: first, it can calculate the capacity of the battery module 2, determine the health status of the battery module 2, and predict the life of the battery module 2; second, it can monitor the temperature of the battery module 2 to avoid overheating of the battery module 2, thereby protecting the safety of the battery module 2 and extending the life of the battery module 2; third, it can monitor the current of the battery module 2, maintain the normal working state of the battery module 2, prevent problems such as overcurrent and short circuit of the battery module 2, thereby preventing accidents during the use of the battery module 2; fourth, it can monitor the voltage of the battery module 2 to ensure that the voltage of the battery module 2 is within a certain range, so as to ensure the working and charging state of the battery module 2, avoid overcharging or over-discharging of the battery module 2, and improve the charging efficiency and life of the battery module 2. In order to realize the installation of the battery management component 42, the battery management module 4 also includes a mounting component 41, and the battery management component 42 is installed on the mounting component 41. The first end plate 214, the first side plate 212 and the second side plate 213 are enclosed to form a mounting groove 5, and the end of the mounting component 41 facing away from the battery management component 42 is installed in the mounting groove 5, that is, the battery management module 4 is embedded in the battery cell module 2, so that the installation space in the box body 1 can be fully utilized, making the structure in the box body 1 more compact.

[0051] Reference Figure 6 In another embodiment of the present invention, the battery management module 4 further includes an adapter component 43. The adapter component 43 can be implemented by an adapter plate, which is connected and electrically connected to the side of the battery management component 42 away from the mounting component 41. The main function of the adapter plate is to convert the electric energy of the battery cell module 2 into a DC power supply for use and then output it.

[0052] Reference Figure 6 In one embodiment of the present invention, the mounting assembly 41 includes a support seat 411 and a mounting plate 412, the support seat 411 is installed in the mounting groove 5, the support seat 411 is provided with a first connecting portion 413, the mounting plate 412 has a third side wall 4121 and a fourth side wall 4122 opposite to each other along the length direction of the box body 1, the third side wall 4121 is provided with a second connecting portion 414, the second connecting portion 414 is connected to the first connecting portion 413, so as to install the mounting plate 412 on the support seat 411, and the battery management assembly 42 is arranged on the fourth side wall 4122.

[0053] It can be understood that there are many forms of implementation of the mounting assembly 41. In this embodiment, the mounting assembly 41 can be implemented by a support seat 411 and a mounting plate 412. The support seat 411 is embedded in the mounting groove 5. The support seat 411 is provided with a first connection portion 413. The first connection portion 413 is provided with a first connection hole 415. The mounting plate 412 has a third side wall 4121 and a fourth side wall 4122 opposite to each other along the length direction of the box body 1. The third side wall 4121 is arranged close to the support seat 411 relative to the fourth side wall 4122. The fourth side wall 4122 is provided with a battery management assembly 42. The third side wall 4121 is provided with a second connection portion 414. The second connection portion 414 is provided with a second connection hole 416. The second connection hole 416 is connected to the first connection hole 415 to place the second connection portion 414 on the first connection portion 413, so as to realize the connection between the mounting plate 412 and the support seat 411, thereby installing the battery management assembly 42 on the battery cell module 2.

[0054] Reference Figure 3 In one embodiment of the present invention, the lithium battery module 100 further includes a connecting component 7, one end of the connecting component 7 is disposed in the box body 1 and connected to the conductive component 3, and the other end of the connecting component 7 extends out of the box body 1 for electrically connecting to a load.

[0055] In this embodiment, the connection component 7 can be implemented by a second conductive copper bar 71, an insulating column 73 and a high-voltage connector 72. The second energized copper bar is arranged in the box body 1, one end of the second conductive copper bar 71 is located on the conductive component 3 and electrically connected to the conductive component 3, the other end of the second conductive copper bar 71 extends along the length direction of the box body 1 and then bends toward the height direction of the box body 1, and then extends along the length direction of the box body 1 and then electrically connected to the high-voltage connector 72, the insulating column 73 is arranged on the first end plate 214, the second conductive copper bar 71 is located on the insulating column 73, and the second conductive copper bar 71 is supported and insulated by the insulating column 73, and due to the existence of the insulating column 73, the second conductive copper bar 71 and the high-voltage connector 72 can be located above the battery management module 4, and the connection component 7 and the battery management module 4 are reasonably arranged in the height direction of the box body 1, and the volume of the lithium battery module 100 is reduced in the height direction of the box body 1. In addition, the housing 1 is provided with a mounting hole 112, and the high-voltage connector 72 is installed at the mounting hole 112. The high-voltage connector 72 is used to be electrically connected to a load, and the load may include a controller, a driver, etc. of the product. With such a design, the electric energy output by the battery module 2 can be transmitted to the high-voltage connector 72 through the second conductive copper bus 71, and then transmitted to the load connected thereto through the high-voltage connector 72, thereby realizing the power supply of the load by the lithium battery module 100.

[0056] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lithium battery module, characterized in that: include: Box; A battery cell module is disposed in the box; A conductive component is arranged in the box and located on the top of the battery cell module, and the conductive component is electrically connected to the battery cell module; the conductive component includes a plurality of bus bars electrically connected to each other, and the plurality of bus bars are stacked along the height direction of the box.

2. The lithium battery module according to claim 1, characterized in that: There are multiple battery cell modules, which are arranged side by side along the width direction of the box body, and two adjacent battery cell modules are electrically connected through a first conductive copper busbar.

3. The lithium battery module according to claim 1, characterized in that: The conductive components are provided in plurality, and the conductive segments are arranged in a plurality of rows along the length direction of the box.

4. The lithium battery module according to claim 3, characterized in that: The battery cell module includes a shell and a plurality of battery packs. The plurality of battery packs are arranged in the shell and spaced apart along the length direction of the box. The plurality of conductive segments are arranged in the shell, and two adjacent battery packs are electrically connected via one conductive segment.

5. The lithium battery module according to claim 4, characterized in that: The shell includes a cover plate and a first side plate, a second side plate, a first end plate and a second end plate connected to the cover plate, the first side plate and the second side plate are arranged opposite to each other along the width direction of the box body, the first end plate and the second end plate are arranged opposite to each other along the length direction of the box body, and a heat conductor is arranged on the inner wall surface of at least one of the first side plate, the second side plate, the first end plate and the second end plate.

6. The lithium battery module according to claim 4, characterized in that: A partition is disposed between two adjacent battery packs, the partition having a top wall and a first side wall and a second side wall opposite to each other, and at least one of the top wall, the first side wall and the second side wall is provided with a first insulating member; And / or, the battery pack includes a plurality of battery cells, the plurality of battery cells are arranged along the length direction of the box body, and a second insulating member is arranged between two adjacent battery cells.

7. The lithium battery module according to claim 4, characterized in that: The lithium battery module also includes a battery management module, which is arranged in the box and located on one side of the first end plate in the length direction of the box. The battery management module is electrically connected to the conductive component and is used to manage the charging of the battery cell module.

8. The lithium battery module according to claim 7, characterized in that: The battery management module includes a mounting component and a battery management component mounted on the mounting component; the first end plate, the first side plate and the second side plate are enclosed to form a mounting groove for mounting the mounting component.

9. The lithium battery module according to claim 8, characterized in that: The mounting assembly includes a support seat and a mounting plate, the support seat is installed in the mounting groove, the support seat is protrudingly provided with a first connecting portion, the mounting plate has a third side wall and a fourth side wall opposite to each other along the length direction of the box body, the third side wall is protrudingly provided with a second connecting portion, the second connecting portion is connected to the first connecting portion to install the mounting plate on the support seat, and the battery management assembly is arranged on the fourth side wall.

10. The lithium battery module according to claim 7, characterized in that: The lithium battery module also includes a connecting component, one end of which is disposed in the box and connected to the conductive component, and the other end of the connecting component extends out of the box for electrically connecting to a load.

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