Lithium battery modules and cabinets

Abstract

This invention provides a lithium battery module and cabinet, belonging to the field of uninterruptible power supply technology. The cabinet comprises a lithium battery submodule; a power amplifier submodule connected to the lithium battery submodule; a heat dissipation duct formed therein and correspondingly provided with a fan; and a heat dissipation channel located between the lithium battery submodule and the power amplifier submodule and connected to the heat dissipation duct, so that airflow within the heat dissipation channel is suitable for flow driven by the power amplifier submodule's fan. The overall layout of the present invention is compact and reasonable, and the heat dissipation channels between modules achieve electrical and thermal isolation, improve heat dissipation performance, and enhance the safety of lithium battery applications.

Description

Technical Field

[0001] The present invention belongs to the technical field of uninterruptible power supplies, and in particular relates to a lithium battery module and a cabinet having the lithium battery module. Background Art

[0002] Compared with lead-acid batteries, lithium batteries have the characteristics of high energy density, low pollution, long cycle life, no memory effect, fast charging, small size and light weight, and are widely used.

[0003] As the market demand for lithium battery products grows, users have higher and higher requirements for the heat dissipation, safety regulations and safety of lithium batteries. The layout of lithium batteries needs to develop in a more optimized direction. Summary of the Invention

[0004] The embodiments of the present invention provide a lithium battery module and a cabinet, aiming to achieve miniaturization and compactness of lithium batteries and improve the heat dissipation performance and safety performance of lithium batteries.

[0005] To achieve the above-mentioned objectives, in a first aspect, an embodiment of the present invention provides a lithium battery module, comprising: a lithium battery sub-module; a power amplifier sub-module, which is connected to the lithium battery sub-module; a heat dissipation duct is formed therein and a corresponding fan is provided; and a heat dissipation channel, which is located between the lithium battery sub-module and the power amplifier sub-module and is connected to the heat dissipation duct, so that the airflow in the heat dissipation channel is suitable for being driven by the fan of the power amplifier sub-module to flow.

[0006] Furthermore, the lithium battery submodule has a first shell, and the power amplifier submodule has a second shell. The first shell and the second shell are assembled to form a gap between them after assembly, and the gap constitutes the heat dissipation channel.

[0007] Furthermore, the heat dissipation duct is formed in the second shell of the power amplifier submodule, and an air hole connected to the heat dissipation duct is provided on the second shell; the air hole is also located in the heat dissipation channel after the power amplifier submodule and the lithium battery submodule are assembled, so that the heat dissipation channel is connected to the heat dissipation duct.

[0008] Furthermore, a power amplifier component is provided in the second shell, the fan is integrated at the rear end of the second shell, the air hole is arranged close to the fan, and a heat dissipation air inlet is provided at the front end of the second shell, so that the second shell forms the heat dissipation air duct; the heat dissipation duct shares the heat dissipation air inlet.

[0009] Furthermore, the front end of the lithium battery submodule is integrated with a first electrical connection terminal, and the rear end thereof is integrated with a first signal connection terminal; the front end of the power amplifier submodule is integrated with a second electrical connection terminal, and the rear end thereof is integrated with a second signal connection terminal; the front ends of the lithium battery submodule and the power amplifier submodule are connected to the first electrical connection terminal and the second electrical connection terminal through a flexible electrical connector, and the rear ends of the two are connected through a signal line that is quickly plugged into the first signal connection terminal and the second signal connection terminal.

[0010] Furthermore, it also includes an isolation component; the isolation component includes a first insulating member arranged on the first shell and a second insulating member arranged on the power amplifier sub-module; the first insulating member and the second insulating member are located on both sides of the heat dissipation channel after the power amplifier sub-module and the lithium battery sub-module are assembled; wherein, the first insulating member includes a first insulating member and a second insulating member, the second insulating member and the second insulating member are arranged opposite to each other and extend from the rear end to the front end of the lithium battery sub-module and the power amplifier sub-module respectively, and the second insulating member is constructed as an electrical connector with an insulating material formed on the surface; the end of the second insulating member close to the lithium battery sub-module constitutes the first electrical connection end.

[0011] Furthermore, the second shell includes a mounting plate integrated with the power amplifier assembly, a cover plate covering the power amplifier assembly, and a support plate for supporting the fan, and the mounting plate is suitable for detachable connection with the first shell.

[0012] Furthermore, the first shell is open on three sides; the lithium battery module also includes a front panel that is detachably connected to the front end of the first shell and a rear sealing plate that is detachably connected to the rear end of the first shell; the front panel is encapsulated at the front ends of the first shell and the second shell and is suitable for shielding the first electrical connection end, the second electrical connection end and the outer side of the flexible electrical connector; the rear sealing plate is encapsulated at the rear end of the first shell and is connected to the support plate, and is suitable for shielding the first signal connection end, the second signal connection end and the signal line.

[0013] Furthermore, the lithium battery submodule is integrated with a fire extinguishing submodule, and the fire extinguishing submodule is connected to the battery cells in the lithium battery submodule.

[0014] Compared with the prior art, the lithium battery module provided by the present invention has the following advantages: the lithium battery device is decomposed into modular lithium battery submodules and power amplifier submodules, the overall layout is compact and reasonable, the module volume is small, and the space occupied in the equipment layout is small, which is convenient for the overall layout in the equipment; in addition, the heat dissipation channel is formed between the lithium battery submodule and the power amplifier submodule. The gap created by the heat dissipation channel can not only play an electrical isolation role and improve safety performance, but also play a thermal insulation effect that isolates the heat generated by the lithium battery submodule and the power amplifier submodule, thereby reducing the mutual influence of the temperature rise of the lithium battery and the power amplifier, and improving the safety of lithium battery application; further Furthermore, given that the power amplifier submodule usually generates greater heat, a dedicated fan and heat dissipation duct are usually provided in the power amplifier submodule to dissipate heat. On this basis, the present invention configures the above-mentioned gap as a heat dissipation channel connected to the heat dissipation duct, so that the airflow in the heat dissipation channel can be driven by the fan in the power amplifier submodule and flow rapidly in the heat dissipation channel. Since the two sides of the heat dissipation channel are respectively the lithium battery submodule and the power amplifier submodule, not only the heat exchange area of ​​the power amplifier submodule is increased, but also a certain convection heat exchange effect can be achieved for the lithium battery submodule, thereby further improving the heat dissipation effect of the lithium battery device in a compact and small size.

[0015] In a second aspect, an embodiment of the present invention further provides a cabinet having the lithium battery module.

[0016] The cabinet provided by the present invention inherits the corresponding advantages due to the adoption of the above-mentioned lithium battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the exploded structure of a lithium battery module provided in an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the exploded structure of a lithium battery submodule provided in an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the decomposed structure of the power amplifier submodule provided in an embodiment of the present invention;

[0020] Figure 4 for Figure 3 The schematic diagram of the assembled three-dimensional structure of the power amplifier submodule shown;

[0021] Figure 5 for Figure 1 A schematic diagram of the three-dimensional structure of the lithium battery submodule and the power amplifier submodule assembly process is provided;

[0022] Figure 6 for Figure 5 Schematic diagram of the front-end three-dimensional structure after the lithium battery submodule and power amplifier submodule are assembled;

[0023] Figure 7 for Figure 5 A schematic diagram of the rear-end three-dimensional structure after the lithium battery submodule and power amplifier submodule are assembled;

[0024] Figure 8 for Figure 1 Schematic diagram of the rear-end three-dimensional structure of the lithium battery module after assembly;

[0025] Figure 9 for Figure 1 The provided schematic diagram of the front-end three-dimensional structure of the assembled lithium battery module;

[0026] Figure 10 A schematic diagram of the structure of the lithium battery submodule and the power amplifier submodule after assembly and isolation provided by an embodiment of the present invention;

[0027] Figure 11 A schematic structural diagram of a second housing of a power amplifier submodule provided in an embodiment of the present invention;

[0028] Description of reference numerals:

[0029] 1. Rear cover; 11. Insert tongue; 12. Handle; 2. Casing; 21. Lithium battery submodule; 22. First shell; 23. Guide folding edge; 24. First electrical connection terminal; 25. First signal connection terminal; 3. Front panel; 31. Handle; 4. Power amplifier submodule; 41. Power amplifier assembly; 42. Mounting plate; 43. Cover plate; 44. Second signal connection terminal; 45. Signal output terminal; 46. Wire outlet; 47. Second electrical connection terminal; 48. Fan; 49. Support plate; 411. Heat dissipation air inlet; 412. Second thermal insulation strip; 413. Jack; Air vent 431; 5. First thermal insulation strip; 6. Fire extinguishing submodule; 7. Thermistor wire; 8. Flexible copper busbar; 9. Signal wire. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] In the description of the present invention, it should be noted that if terms such as "front" and "back" appear to indicate a direction or position relationship, they are based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] Please also refer to Figures 1 to 11The lithium battery module provided by the present invention is now described. The lithium battery module includes: a housing 2 , a lithium battery submodule 21 and a power amplifier submodule 4 .

[0033] The lithium battery submodule 21 includes a first housing 22 and a plurality of battery cells located in the first housing.

[0034] The power amplifier submodule 4 is relatively fixed to the lithium battery submodule 21 and includes a second housing and a fan 48 located within the second housing. The second housing houses the power amplifier assembly 41, which connects to the cells of the lithium battery submodule 21 to convert power between the lithium battery submodule 21 and an external power source or load. As will be appreciated, the power amplifier assembly 41 generates significant heat, and a cooling duct is formed within it. The fan 48 corresponds to this cooling duct to dissipate heat from the power amplifier assembly 41.

[0035] In this embodiment, the first housing 22 and the second housing are assembled to form a gap therebetween, which constitutes a heat dissipation channel. The heat dissipation channel is located between the lithium battery submodule and the power amplifier submodule and is connected to the heat dissipation duct, so that the airflow in the heat dissipation channel is suitable for being driven by the fan of the power amplifier submodule.

[0036] Therefore, the embodiment of the present invention decomposes the lithium battery device into modular lithium battery submodules 21 and power amplifier submodules 4, and the overall layout is compact and reasonable, the module volume is small, and the space occupied in the equipment layout is small, which is convenient for the overall layout in the equipment; in addition, the heat dissipation channel is formed between the lithium battery submodule 21 and the power amplifier submodule 4. The gap brought by the heat dissipation channel can not only play an electrical isolation role and improve the safety performance, but also play a thermal insulation effect to isolate the heat generated by the lithium battery submodule and the power amplifier submodule, reduce the mutual influence of the temperature rise of the lithium battery and the power amplifier, and improve the safety of the lithium battery application; further, in view of the power The power amplifier submodule usually generates more heat, so a dedicated fan and heat dissipation duct are usually set in the power amplifier submodule to dissipate heat. On this basis, the present invention configures the above-mentioned gap as a heat dissipation channel connected to the heat dissipation duct, so that the airflow in the heat dissipation channel can be driven by the fan in the power amplifier submodule and flow rapidly in the heat dissipation channel. Since the two sides of the heat dissipation channel are the lithium battery submodule and the power amplifier submodule respectively, not only the heat exchange area of ​​the power amplifier submodule is increased, but also a certain convection heat exchange effect can be achieved for the lithium battery submodule, thereby further improving the heat dissipation effect of the lithium battery device in a compact and small size.

[0037] In specific structures, such as Figure 11As shown, the second housing is provided with an air hole 431 that connects to the heat dissipation duct. After the power amplifier submodule 4 and the lithium battery submodule 21 are assembled, the air hole 431 is also located in the heat dissipation duct, so that the heat dissipation duct connects to the heat dissipation duct. Furthermore, the rear end of the second housing is integrated with the fan 48, and the air hole 431 is located near the fan 48. The front end of the second housing is provided with a heat dissipation air inlet 411, so that the second housing forms the heat dissipation duct; the heat dissipation ducts share the heat dissipation air inlet 411. In this embodiment, the fan 48 is an exhaust fan. When it draws air into the heat dissipation duct, the airflow enters through the heat dissipation air inlet 411 and is exhausted by the fan 48. Due to the air hole 431, a fast airflow is also formed in the heat dissipation duct. The airflow also enters through the heat dissipation air inlet 411, then passes through the air outlet into the rear end of the heat dissipation duct and is exhausted by the fan. It is understandable that in other embodiments, it is feasible to use an air supply fan instead, or to configure the number of air outlets and the relative positions of upstream and downstream in the air duct in other ways.

[0038] In one embodiment, the lithium battery submodule 21 has a first electrical connection terminal 24 integrated at its front end and a first signal connection terminal 25 integrated at its rear end; the power amplifier submodule 4 has a second electrical connection terminal 47 integrated at its front end and a second signal connection terminal 44 integrated at its rear end; the lithium battery submodule 21 and the power amplifier submodule 4 are stacked in the housing 2, and there is a gap between the two to form a heat dissipation channel; the front ends of the lithium battery submodule 21 and the power amplifier submodule 4 are connected to the first electrical connection terminal 24 and the second electrical connection terminal 47 through a flexible electrical connector such as a flexible copper bus 8, and the rear ends of the two are connected through a signal line 9 that is quickly plugged into the first signal connection terminal 25 and the second signal connection terminal 44.

[0039] The lithium battery module provided in this embodiment has modular lithium battery submodules and power amplifier submodules integrated in the housing. The overall layout is compact and reasonable, the module size is small, and it takes up little space in the equipment layout, which is convenient for the overall layout in the equipment; each submodule is provided with a connection terminal that can be connected to each other, which is also convenient for installation; at the same time, the modular design of the lithium battery submodule 21 and the power amplifier submodule 4 can be prepared and assembled separately, and then assembled into the housing 2 to form a lithium battery module, reducing the impact of other installation processes on the positive and negative poles of the lithium battery, greatly reducing the risk of short circuit between the positive and negative poles, and only needing to replace the corresponding functional submodule during subsequent maintenance, saving maintenance time. In addition, the electrical connection terminals are all located at the on-off position of the lithium battery module, which facilitates the corresponding electrical connection operation.

[0040] The two heat sources, the lithium battery submodule 21 and the power amplifier submodule 4, are respectively arranged in different shells, with a heat dissipation channel between the two, which can better achieve thermal isolation and electrical insulation between the battery and the power amplifier, while reducing the mutual influence of the temperature rise of the lithium battery and the power amplifier, and improving the safety of lithium battery application.

[0041] like Figures 6 and 7 As shown, since the lithium battery submodule 21 and the power amplifier submodule 4 are integrated into two different housings, there will be installation errors when the two are assembled into a single housing. Therefore, the front ends of the lithium battery submodule 21 and the power amplifier submodule 4 are connected by a flexible electrical connector such as a flexible copper busbar 8, and the rear ends of the lithium battery submodule 21 and the power amplifier submodule 4 are connected by a signal line 9, which can eliminate assembly errors. Of course, the flexible copper busbar 8 can also be replaced with a cable.

[0042] In addition, the lithium battery module of this embodiment adopts a two-piece structure, which directly divides the lithium battery module into two sub-modules, each with a corresponding housing. By correspondingly splicing and assembling the housings of the two sub-modules to form the entire housing, the lithium battery module can be assembled and maintained by directly assembling or removing the housings of the corresponding sub-modules, greatly improving convenience. Of course, in order to achieve the effect of the heat dissipation channel, a three-piece structure can also be adopted, that is, an additional housing is used, and the lithium battery sub-module 21 and the power amplifier sub-module 4 are placed in the additional housing.

[0043] As a possible implementation, see Figure 1 and Figure 2 The outer shell 2 includes a first shell 22 with openings on three sides, a front panel 3 detachably connected to the front end of the first shell 22, and a rear cover 1 detachably connected to the rear end of the first shell 22; the front panel 3 is encapsulated in the front ends of the first and second shells and blocks the first electrical connection terminal 24, the second electrical connection terminal 47 and the outside of the flexible copper bus 8, and the rear cover 1 blocks the first signal connection terminal 25, the second signal connection terminal 44 and the signal line 9. The outer shell is composed of a detachably connected front panel 3, a rear cover 1 and a first shell 22. Each submodule is assembled in the first shell 22. After the front and rear ends are connected, the front panel 3 and the rear cover 1 are assembled. Assembly and wiring are convenient, and it is also convenient for individual maintenance and replacement of each submodule. Among them, heat dissipation holes are provided on the front panel 3 to facilitate heat dissipation.

[0044] To quickly install each submodule, see Figure 2 Guide flanges 23 are provided along the two opposite open ends of the first housing 22. These flanges are provided with multiple threaded holes to facilitate the fastening of the front and rear panels. These flanges guide the submodules into the first housing 22, providing both position limits and guidance.

[0045] As an optional implementation, see Figure 8 and Figure 9 A handle 31 is provided in the middle of the front panel 3, and a buckle 12 is provided in the middle of the rear cover plate, so that the force of the entire module can be balanced during transportation.

[0046] In order to reduce the mutual influence between the lithium battery submodule 21 and the power amplifier submodule 4, see Figures 2 to 4 As shown, in this embodiment, isolation components are provided on both sides of the gap between the lithium battery submodule 21 and the power amplifier submodule 4 , which can reduce the impact of battery fire on the power amplifier submodule 4 .

[0047] Specifically, see Figures 2 to 4 As shown, the isolation assembly includes a first insulating member provided on the lithium battery submodule 21 and a second insulating member 412 provided on the power amplifier submodule 4. The first insulating member and the second insulating member are located on both sides of the gap (heat dissipation channel) after the power amplifier submodule 4 and the lithium battery submodule 21 are assembled.

[0048] Specifically, the first insulating member includes a first insulating member and a second insulating member 5. The first insulating member is a rectangular insulating plate (located at the position indicated by reference numeral 21 in the accompanying drawings). The second insulating member 5 is disposed opposite the second insulating member 412 and extends from the rear end to the front end of the lithium battery submodule and the power amplifier submodule, respectively. The second insulating member 5 is constructed as an electrical connector with an insulating material formed on its surface. The end of the second insulating member 5 near the lithium battery submodule constitutes a portion of the first electrical connection terminal 24. In this embodiment, the second insulating member is the negative electrode extension copper busbar extending from the lithium battery submodule 21. In this embodiment, in order to lead both the positive and negative electrode connection terminals to the front end of the module, the negative electrode copper busbar needs to extend from the rear end to the front end. To this end, to improve safety insulation performance, this embodiment of the present invention additionally provides an isolation assembly. The negative electrode extension copper busbar is treated with plastic dipping to form an outer insulating layer on its metal surface. Insulating material (i.e., the second insulating member 412) is disposed correspondingly at the position opposite the power amplifier submodule 4. This ensures convenient wiring while effectively ensuring safety performance.

[0049] Based on the above assembly method of the lithium battery submodule 21 and the power amplifier submodule 4, see Figure 3 、 Figure 4 、 Figure 7 and Figure 8 As shown, the power amplifier submodule 4 includes a second housing and the power amplifier assembly 41 integrated therein. The fan 48 is provided at the rear end of the second housing, and the heat dissipation air inlet 411 is provided at the front end of the second housing. The second housing forms an independent heat dissipation air duct. The independent air duct formed by the second housing can minimize the impact of the power conversion temperature rise on the lithium battery submodule 21, reducing the risk of natural gas and explosion of the lithium battery submodule 21.

[0050] As a specific embodiment of the second shell, Figures 3 to 8As shown, the second housing includes a mounting plate 42, a cover plate 43 disposed on the mounting plate 42, and a support plate 49 for supporting a fan 48. The power amplifier assembly 41 is mounted on the mounting plate 42; the mounting plate 42 is located away from the lithium battery submodule 21. The mounting plate 42 and the cover plate 43 are connected by screws. The mounting plate 42 is shared with the housing 2. Once the power amplifier submodule 4 is installed, the entire module is assembled. As part of the housing, the mounting plate allows for a simplified and integrated structure and is detachably connected to the first housing 22, making disassembly and assembly very convenient.

[0051] In this embodiment, the rear cover plate 1 is enclosed at the rear end of the lithium battery submodule 21. The support plate 49 connects to the rear cover plate 1 to form the rear end plate of the housing 2. The support plate 49 also serves as part of the housing, enabling a simplified and integrated structure. The support plate 49 is provided with a tongue 11, and the rear cover plate is provided with a socket 413. The tongue 11 on the support plate inserts into the socket 413, achieving a seamless connection between the support plate 49 and the rear cover plate 1.

[0052] Among them, see Figures 6 to 10 As shown, for the power amplifier sub-module 4, the fan 48 and the signal output terminal 45 are installed on the support plate 49 without covering, and air intake is required for heat dissipation and signal output. Therefore, the rear sealing plate 1 only blocks the rear end of the lithium battery sub-module 21 to protect the signal line 9; the second shell of the power amplifier sub-module 4 constitutes an independent heat dissipation duct, and the front panel 3 is at the front end of the power amplifier sub-module 4 and the lithium battery sub-module 21 to protect the fire extinguishing sub-module 6 and the flexible copper bus 8. At the same time, the heat dissipation holes are set to achieve overall heat dissipation.

[0053] Since lithium batteries have the risk of spontaneous combustion, in order to reduce safety hazards, based on the modular assembly of the lithium battery submodule 21 and the power amplifier submodule 4, Figure 6 and Figure 10 The figure shows an improved embodiment of the lithium battery module. A fire extinguishing submodule 6 is provided at the front end of the lithium battery submodule 21 . The fire extinguishing submodule 6 is connected to the battery cells in the lithium battery submodule 21 via a thermal line 7 .

[0054] Optionally, the fire extinguishing submodule 6 uses a suitable aerosol fire extinguishing submodule. The aerosol fire extinguishing submodule is a device that generates a hot aerosol fire extinguishing agent through a combustion reaction from an aerosol generating agent. Aerosol generating agents are divided into two categories based on their production method: hot aerosol fire extinguishing agents generated by burning a solid mixture, and cold aerosol fire extinguishing agents generated by mechanical dispersion methods. Hot aerosol fire extinguishing agents are solid chemical mixtures composed of an oxidizing agent, a reducing agent, and additives. They produce a solid-gas mixture through a combustion reaction. Currently, the main types of hot aerosol fire extinguishing systems on the market are K-type and S-type.

[0055] The S-type hot gas dissolution fire extinguishing submodule is available in floor-standing and wall-mounted versions. It is a full-flood fire extinguishing system that extinguishes fires from all directions, regardless of the location of the fire source. The aerosol fire extinguishing agent produces very few solid particles, which are non-conductive and non-corrosive even at high temperatures (80% relative humidity), thus preventing damage to electrical equipment. It is suitable for fire protection in small protected areas such as computer rooms, power distribution rooms, transformer rooms, archives and cultural relic rooms, small oil depots, and telecommunications centers.

[0056] The lithium battery module provided in this embodiment can optionally use an S-type hot gas dissolution fire extinguishing sub-module. An aerosol fire extinguishing sub-module is installed at the front end of the lithium battery sub-module 21. The aerosol fire extinguishing sub-module detects the temperature of each battery cell via thermistor line 7. When the temperature at a certain location reaches the activation temperature, it automatically releases fire extinguishing gas to extinguish the fire. Combined with the thermal insulation strips installed between the lithium battery sub-module 21 and the power amplifier sub-module 4, the isolation can greatly reduce the impact of battery fire on the power amplifier sub-module 4 side. Since the lithium battery side does not have an air duct and is relatively closed, it has a certain slowing effect on the spread of fire. At the same time, the aerosol jet can also achieve the best fire extinguishing effect in a relatively closed space.

[0057] In another embodiment, the fire extinguishing submodule 6 is a patch-type microcapsule fire extinguisher, and the fire extinguishing submodule 6 is attached to the inner surface of the first shell 22 and covers the battery cell to release the gas for fire extinguishing when the preset temperature is reached. Furthermore, the lithium battery submodule 21 includes a plurality of the battery cells, and the electrical connection ends of the plurality of the battery cells are connected by electrical connectors; the fire extinguishing submodule 6 is attached to the inner surface of the first shell 22 and covers the electrical connection ends of the battery cells. In this embodiment, the microcapsule fire extinguisher compresses perfluorohexanone gas into the microcapsule shell, thereby achieving a smaller patch-type installation, and the fire extinguishing submodule 6 is arranged inside the first shell 22 to prevent the fire extinguishing gas from spreading. In addition, the fire extinguishing submodule 6 covers the battery cell, especially the electrical connection end of the battery cell, which can achieve a better fire extinguishing effect for the dangerous parts of the battery cell.

[0058] An assembly process of the lithium battery module provided in this embodiment is as follows:

[0059] (1) To assemble the lithium battery submodule 21, simply press the lithium battery submodule 21 Figure 2 As shown, put it into the housing 2 and fix it with screws;

[0060] (2) Installation of the power amplifier submodule 4: During installation, fix the power amplifier component 41 on the mounting plate 42 with screws, and press the cover plate 43 Figure 3 After the cover is closed and the screws are tightened, the assembly of the power amplifier submodule 4 is completed;

[0061] (3) Press the power amplifier submodule 4 and the lithium battery submodule 21 Figure 5 The buckles shown are fixed with screws;

[0062] (4) Figures 6 and 7 As shown, the power amplifier submodule 4 and the lithium battery submodule 21 need to be electrically connected, so a second electrical connection terminal 47 is provided at the front end of the power amplifier submodule 4, and a second signal connection terminal 44 is provided at the rear end; the lithium battery submodule 21 and the rear end of the power amplifier submodule 4 are quickly plugged in and connected through a signal line 9; the rear end of the power amplifier submodule 4 is provided with an outlet 46 and a signal output terminal 45, which serve as the signal output end of the entire module after the module is assembled as a whole; since the lithium battery submodule 21 and the power amplifier submodule 4 are prepared independently, there will be installation errors, so the front input part connection needs to be connected using a flexible copper bus 8.

[0063] (5) Figure 8 and Figure 9 , cover the rear cover plate 1 and front panel 3 to complete the assembly of the entire module. The entire lithium battery module is prepared in a modular manner. The power amplifier component 41 is sealed in the second shell, with an independent air duct. At the same time, it has little impact on the lithium battery submodule 21, improving the safety of the entire device.

[0064] The lithium battery module provided in this embodiment is convenient and safe to install. This layout and installation scheme can realize the separate preparation and installation of the lithium battery sub-module 21 and the power amplifier sub-module 4, realize the sub-module distinction of each functional component of the module, facilitate the preparation and assembly of the production line, and at the same time, only the corresponding functional sub-module needs to be replaced during subsequent maintenance; since there is a risk of short circuit between the positive and negative poles of the lithium battery, the lithium battery is installed separately in a shell during the initial preparation, and then the sub-modules are spliced ​​together, which reduces the impact of other installation processes on the positive and negative poles of the lithium battery and greatly reduces the risk of short circuit between the positive and negative poles.

[0065] Based on the same inventive concept, an embodiment of the present application also provides a cabinet having the aforementioned lithium battery module.

[0066] The cabinet provided by the present invention not only has a compact structure and a reasonable layout, but also has good heat dissipation, which can reduce the risk of natural disasters and explosions, improve the operating safety factor of the equipment, and thus reduce the risk of loss of life and property.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lithium battery module, comprising: Lithium battery submodule; A power amplifier submodule, which is connected to the lithium battery submodule; a heat dissipation duct is formed therein and a corresponding fan is provided; and a heat dissipation channel located between the lithium battery submodule and the power amplifier submodule and connected to the heat dissipation duct, so that the airflow in the heat dissipation channel is suitable for being driven by the fan of the power amplifier submodule; The lithium battery submodule has a first housing, and the power amplifier submodule has a second housing. The first housing and the second housing are assembled to form a gap between them, and the gap constitutes the heat dissipation channel. The heat dissipation duct is formed in the second housing of the power amplifier submodule, and an air hole communicating with the heat dissipation duct is provided on the second housing; The air vent is also located in the heat dissipation channel after the power amplifier submodule and the lithium battery submodule are assembled, so that the heat dissipation channel is connected to the heat dissipation air duct; The lithium battery submodule is integrated with a fire extinguishing submodule, and the fire extinguishing submodule is connected to the battery cells in the lithium battery submodule.

2. The lithium battery module according to claim 1, wherein: An amplifier assembly is provided in the second shell, the fan is integrated at the rear end of the second shell, the air hole is arranged close to the fan, and a heat dissipation air inlet is provided at the front end of the second shell so that the second shell forms the heat dissipation air duct; the heat dissipation duct shares the heat dissipation air inlet.

3. The lithium battery module according to claim 1, wherein: The front end of the lithium battery submodule is integrated with a first electrical connection terminal, and the rear end thereof is integrated with a first signal connection terminal; The front end of the power amplifier submodule is integrated with a second electrical connection terminal, and the rear end thereof is integrated with a second signal connection terminal; The front ends of the lithium battery submodule and the power amplifier submodule are connected to the first electrical connection end and the second electrical connection end through a flexible electrical connector, and the rear ends of the two are connected through a signal line that is quickly plugged into the first signal connection end and the second signal connection end.

4. The lithium battery module according to claim 3, wherein: Also included are isolation components; The isolation assembly includes a first insulating member provided on the first housing and a second insulating member provided on the power amplifier submodule; the first insulating member and the second insulating member are located on both sides of the heat dissipation channel after the power amplifier submodule and the lithium battery submodule are assembled; Among them, the first insulating member includes a first insulating member and a second insulating member, the second insulating member is arranged opposite to the first insulating member and extends from the rear end to the front end of the lithium battery sub-module and the power amplifier sub-module respectively, and the second insulating member is constructed as an electrical connector with an insulating material formed on the surface; the end of the second insulating member close to the lithium battery sub-module constitutes the first electrical connection end.

5. The lithium battery module according to claim 3, wherein: A power amplifier component is provided in the second shell; the second shell includes a mounting plate integrated with the power amplifier component, a cover plate covering the power amplifier component and a support plate for supporting the fan, and the mounting plate is suitable for detachable connection with the first shell.

6. The lithium battery module according to claim 5, wherein: The first shell is open on three sides; The lithium battery module further includes a front panel detachably connected to the front end of the first housing and a rear sealing plate detachably connected to the rear end of the first housing; The front panel is encapsulated at the front ends of the first shell and the second shell and is suitable for shielding the first electrical connection end, the second electrical connection end and the outer side of the flexible electrical connection member; The rear sealing plate is packaged at the rear end of the first shell and connected to the support plate, and is suitable for shielding the first signal connection end, the second signal connection end and the signal line.

7. A cabinet, characterized by: A lithium battery module according to any one of claims 1 to 6.

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