Heat insulation type lithium battery module

Abstract

The utility model relates to the technical field of lithium batteries, in particular to a heat insulation type lithium battery module which comprises a lower support and an upper support, a first heat insulation lining is arranged on the inner wall of the lower support, a first fireproof lining is arranged on the inner wall of the first heat insulation lining, a frame-shaped fixing plate is placed in the first fireproof lining, and a lithium battery module is installed in the frame-shaped fixing plate. A heat dissipation piece is arranged on the upper support and comprises a U-shaped heat insulation pipe, the two ends of the U-shaped heat insulation pipe penetrate through the bottom of the inner wall of the upper support, a heat conduction copper plate penetrates through the bottom of the U-shaped heat insulation pipe, and a plurality of heat conduction copper sheets are arranged at the bottom of the heat conduction copper plate. According to the heat insulation type lithium battery module, through the design of the heat dissipation piece on the upper support, especially the combination of the U-shaped heat insulation pipe and the heat conduction copper plate, the heat dissipation efficiency of the lithium battery module is remarkably improved, the installation of the fan and the design of the heat conduction copper sheet work cooperatively, generated heat is effectively dissipated, heat accumulation is prevented, and the risk that the module is overheated is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, specifically to a heat-insulated lithium battery module. Background Technology

[0002] With the rapid development of electronic devices, electric vehicles, and energy storage systems, lithium batteries have become one of the most widely used energy storage technologies. A lithium battery module consists of multiple lithium battery cells connected in series or parallel to achieve the required voltage and capacity. Lithium battery modules require mounting brackets for assembly.

[0003] Patent CN220368061U discloses a lithium battery module bracket with heat insulation function, including a lithium battery module, a lower bracket, and an upper bracket. The lower bracket has an mounting cavity at its bottom, into which the bottom end of the lithium battery module is embedded. Side heat insulation cavities and bottom heat insulation cavities are respectively provided between the outer wall and bottom surface of the mounting cavity and the inner wall of the lower bracket. A heat insulation pad is provided between the inner wall of the side heat insulation cavity and the lithium battery module, and a heat insulation layer is provided on the inner wall of the bottom heat insulation cavity. By providing the side heat insulation cavity, bottom heat insulation cavity, heat insulation pad, and heat insulation layer, heat transfer between the lithium battery module and the bracket can be effectively isolated, preventing safety accidents caused by excessive temperature and providing effective heat insulation. Simultaneously, it can prevent bracket deformation and loosening caused by temperature differences, thereby improving the stability and safety of the lithium battery module and extending its service life and safety.

[0004] Although the existing technologies mentioned above can effectively isolate the heat transfer between the lithium battery module and the bracket through side heat insulation cavity, bottom heat insulation cavity, heat insulation pad and heat insulation layer, the heat generated by the lithium battery module will be sealed in the cavity formed by the upper bracket and the lower bracket, which is not conducive to heat dissipation, affects the safety of the lithium battery module and poses a risk of overheating. In view of this, we propose a heat-insulated lithium battery module. Utility Model Content

[0005] The purpose of this invention is to provide a heat-insulated lithium battery module to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A heat-insulated lithium battery module includes a lower bracket and an upper bracket. The upper bracket is detachably connected to the top of the lower bracket, providing a support structure for the lithium battery module and protecting the entire module's outer shell. The inner wall of the lower bracket is provided with a first heat-insulating liner to provide heat insulation and reduce heat transfer to the lower bracket. The inner wall of the first heat-insulating liner is provided with a first fireproof liner to provide fire protection and prevent the spread of fire. A frame-shaped fixing plate is placed inside the first fireproof liner to fix the lithium battery module inside the lower bracket, ensuring that the module does not move. The lithium battery module and energy storage components are installed inside the frame-shaped fixing plate, and the required voltage and capacity are achieved through series or parallel connection.

[0008] The upper support is equipped with a heat dissipation component to dissipate the heat generated by the lithium battery module and prevent overheating. The heat dissipation component includes a U-shaped heat insulation tube to improve heat dissipation efficiency. Both ends of the U-shaped heat insulation tube penetrate the bottom of the inner wall of the upper support to increase the heat dissipation effect. Through the design of penetrating the upper support, a heat-conducting copper plate is provided through the bottom of the U-shaped heat insulation tube to conduct heat and improve heat dissipation efficiency. The bottom of the heat-conducting copper plate is provided with multiple heat-conducting copper sheets arranged equidistantly from left to right to increase the heat dissipation surface area and further improve the heat dissipation efficiency.

[0009] The top right end of the U-shaped heat insulation tube is provided with a cover plate, which is detachably connected to the top of the upper bracket by bolts for easy maintenance of the fan. The top of the cover plate has multiple circular holes arranged at equal intervals. The bottom of the cover plate and the position of the circular holes are provided with a fan. The fan is powered by the lithium battery module and works synchronously with the lithium battery module. The fan will start when the lithium battery module is charging or discharging, so that airflow is generated in the U-shaped heat insulation tube, thereby allowing the heat on the heat-conducting copper plate to be dissipated with the airflow, preventing the lithium battery module from overheating. The inner wall of the upper bracket is provided with a second heat insulation lining to provide heat insulation function and reduce heat transfer to the upper bracket. The inner wall of the second heat insulation lining is provided with a second fireproof lining to provide fire protection and prevent the spread of fire.

[0010] Preferably, the top of the outer wall of the lower bracket is provided with a first frame-shaped connecting plate, and the top of the first frame-shaped connecting plate is provided with a plurality of rectangular insertion holes. The bottom of the outer wall of the upper bracket is provided with a second frame-shaped connecting plate, and the bottom of the second frame-shaped connecting plate is provided with a plurality of rectangular insertion blocks, which are respectively inserted into the plurality of rectangular insertion holes.

[0011] Preferably, the rectangular insert is detachably connected to the rectangular socket by bolts, and the rectangular insert and the rectangular socket cooperate to achieve a stable connection between the lower bracket and the upper bracket.

[0012] Preferably, L-shaped rubber corner pads are provided at the four corners of the inner wall of the first fireproof lining. The inner wall of the L-shaped rubber corner pads fits against the outer wall of the corner of the frame-shaped fixing plate, filling the corners, improving the shock absorption effect, and avoiding friction and collision damage.

[0013] Preferably, the bottom of the frame-shaped fixing plate is provided with two U-shaped bottom plates arranged symmetrically front and back. The bottom of the U-shaped bottom plate abuts against the bottom of the inner wall of the first fireproof lining, and the bottom of the lithium battery module abuts against the bottom of the inner wall of the U-shaped bottom plate, so that a heat dissipation space is reserved between the bottom of the lithium battery module and the bottom of the inner wall of the first fireproof lining, which can improve the heat insulation effect and facilitate the rise of heat.

[0014] Preferably, the top of the frame-shaped fixing plate is provided with a first handle on both the left and right sides, and the top of the first handle protrudes from the top of the lower bracket, providing convenient lifting operation and facilitating the installation and removal of the lithium battery module.

[0015] Preferably, the top of the upper bracket is provided with two second handles arranged symmetrically from left to right, providing convenient lifting operation and facilitating the installation and disassembly of the upper bracket. The top of the inner wall of the upper bracket is provided with two strip-shaped positioning plates arranged symmetrically from front to back. The bottom of the strip-shaped positioning plates abuts against the top of the lithium battery module to position the lithium battery module from the top and ensure that the module does not move.

[0016] Preferably, a circular dustproof mesh is provided inside the circular hole, and a rectangular dustproof mesh is provided at the air outlet at the top left end of the U-shaped heat insulation tube to prevent dust from clogging the U-shaped heat insulation tube and to ensure the heat conduction effect of the heat-conducting copper plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This heat-insulated lithium battery module, through the design of the heat dissipation components on the upper bracket, especially the combination of the U-shaped heat insulation pipe and the heat-conducting copper plate, significantly improves the heat dissipation efficiency of the lithium battery module. The installation of the fan and the design of the heat-conducting copper plate work together to effectively dissipate the generated heat, prevent heat accumulation, reduce the risk of module overheating, and thus improve the safety of the lithium battery module.

[0019] 2. The design of this heat-insulated lithium battery module, with its first and second heat-insulating liners, effectively reduces heat transfer to the inside and outside of the support structure, keeping the module within a safe temperature range and extending its service life. Simultaneously, the application of a fire-resistant liner provides additional fire protection, improving the overall safety factor.

[0020] 3. This heat-insulated lithium battery module incorporates dustproof meshes in the design of its heat dissipation channels and fan, ensuring unobstructed heat dissipation, preventing dust accumulation, and guaranteeing the thermal conductivity of the heat-conducting copper plate and the long-term use of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0023] Figure 3 This is the second partial structural schematic diagram of the present utility model;

[0024] Figure 4 This is a cross-sectional structural diagram of the lower support in this utility model;

[0025] Figure 5 This is a schematic diagram of the assembly structure of the frame-shaped fixing plate and the lithium battery module in this utility model;

[0026] Figure 6 This is a schematic diagram of the assembly structure of the upper bracket and heat sink in this utility model;

[0027] Figure 7 This is the third partial structural schematic diagram of this utility model;

[0028] Figure 8 This is a cross-sectional structural diagram of the upper support in this utility model;

[0029] Figure 9 This is a schematic diagram of the assembly structure of the cover plate and the fan in this utility model;

[0030] In the diagram: 1. Lower bracket; 10. First frame-shaped connecting plate; 100. Rectangular insertion hole; 2. First heat insulation liner; 3. First fireproof liner; 4. Frame-shaped fixing plate; 40. U-shaped base plate; 41. First handle; 5. Lithium battery module; 6. L-shaped rubber corner pad; 7. Upper bracket; 70. Second frame-shaped connecting plate; 700. Rectangular insertion block; 71. Second heat insulation liner; 72. Second fireproof liner; 73. Strip positioning plate; 74. Second handle; 8. Heat sink; 80. U-shaped heat insulation pipe; 81. Thermally conductive copper plate; 82. Thermally conductive copper sheet; 83. Cover plate; 830. Circular hole; 84. Fan; 85. Circular dustproof net; 86. Rectangular dustproof net. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Please see Figures 1-9 This utility model provides a technical solution:

[0034] A heat-insulated lithium battery module includes a lower support 1 and an upper support 7. The upper support 7 is detachably connected to the top of the lower support 1, providing a support structure for the lithium battery module and protecting the entire module's outer shell. The inner wall of the lower support 1 is provided with a first heat-insulating liner 2, which provides heat insulation and reduces heat transfer to the lower support 1. The inner wall of the first heat-insulating liner 2 is provided with a first fireproof liner 3, which provides fire protection and prevents the spread of fire. A frame-shaped fixing plate 4 is placed inside the first fireproof liner 3 to fix the lithium battery module 5 inside the lower support 1, ensuring that the module does not move. The lithium battery module 5 and energy storage components are installed inside the frame-shaped fixing plate 4, and the required voltage and capacity are achieved through series or parallel connection.

[0035] The upper bracket 7 is equipped with a heat sink 8 to dissipate the heat generated by the lithium battery module 5 and prevent overheating. The heat sink 8 includes a U-shaped heat insulation pipe 80 to improve heat dissipation efficiency. Both ends of the U-shaped heat insulation pipe 80 penetrate the bottom of the inner wall of the upper bracket 7 to increase the heat dissipation effect. Through the design of penetrating the upper bracket 7, a heat-conducting copper plate 81 is provided at the bottom of the U-shaped heat insulation pipe 80 to conduct heat and improve heat dissipation efficiency. The bottom of the heat-conducting copper plate 81 is provided with multiple heat-conducting copper sheets 82 arranged equidistantly on the left and right sides to increase the heat dissipation surface area and further improve the heat dissipation efficiency.

[0036] A cover plate 83 is provided at the right end of the top of the U-shaped heat insulation tube 80. The cover plate 83 is detachably connected to the top of the upper bracket 7 by bolts to facilitate the maintenance of the fan 84. The top of the cover plate 83 has multiple circular holes 830 arranged equidistantly. The bottom of the cover plate 83 and located at the position of the circular holes 830 are provided with the fan 84. The fan 84 is powered by the lithium battery module 5 and works synchronously with the lithium battery module 5. When the lithium battery module 5 is charging or discharging, the fan 84 will start to generate airflow in the U-shaped heat insulation tube 80, so that the heat on the heat-conducting copper plate 81 can be dissipated with the airflow, preventing the lithium battery module from overheating. The inner wall of the upper bracket 7 is provided with a second heat insulation liner 71 to provide heat insulation and reduce heat transfer to the upper bracket 7. The inner wall of the second heat insulation liner 71 is provided with a second fireproof liner 72 to provide fire protection and prevent the spread of fire.

[0037] In this embodiment, a first frame-shaped connecting plate 10 is provided on the top of the outer wall of the lower bracket 1, and a plurality of rectangular insertion holes 100 are provided on the top of the first frame-shaped connecting plate 10. A second frame-shaped connecting plate 70 is provided on the bottom of the outer wall of the upper bracket 7, and a plurality of rectangular insertion blocks 700 are provided on the bottom of the second frame-shaped connecting plate 70. The plurality of rectangular insertion blocks 700 are respectively inserted into the plurality of rectangular insertion holes 100.

[0038] Specifically, the rectangular plug 700 is detachably connected to the rectangular socket 100 by bolts. The rectangular plug 700 and the rectangular socket 100 cooperate to achieve a stable connection between the lower bracket 1 and the upper bracket 7.

[0039] Furthermore, L-shaped rubber corner pads 6 are provided at the four corners of the inner wall of the first fireproof lining 3. The inner wall of the L-shaped rubber corner pads 6 fits against the outer wall of the corner of the frame-shaped fixing plate 4, filling the corners, improving the shock absorption effect, and avoiding friction and collision damage.

[0040] Furthermore, the bottom of the frame-shaped fixing plate 4 is provided with two U-shaped base plates 40 arranged symmetrically front and back. The bottom of the U-shaped base plate 40 abuts against the bottom of the inner wall of the first fireproof lining 3, and the bottom of the lithium battery module 5 abuts against the bottom of the inner wall of the U-shaped base plate 40, so that a heat dissipation space is reserved between the bottom of the lithium battery module 5 and the bottom of the inner wall of the first fireproof lining 3, which can improve the heat insulation effect and facilitate the rise of heat.

[0041] Furthermore, the top left and right sides of the frame-shaped fixing plate 4 are provided with first handles 41. The top of the first handles 41 protrudes from the top of the lower bracket 1, providing convenient lifting operation and facilitating the installation and removal of the lithium battery module 5.

[0042] Furthermore, the top of the upper bracket 7 is provided with two second handles 74 arranged symmetrically on the left and right sides, providing convenient lifting operation and facilitating the installation and disassembly of the upper bracket 7. The top of the inner wall of the upper bracket 7 is provided with two strip positioning plates 73 arranged symmetrically on the front and back sides. The bottom of the strip positioning plates 73 abuts against the top of the lithium battery module 5 to position the lithium battery module 5 from the top and ensure that the module does not move.

[0043] Furthermore, a circular dustproof mesh 85 is provided inside the circular hole 830, and a rectangular dustproof mesh 86 is provided at the air outlet at the top left end of the U-shaped heat insulation tube 80 to prevent dust from clogging the U-shaped heat insulation tube 80 and to ensure the heat conduction effect of the heat-conducting copper plate 81.

[0044] In this embodiment, the heat-insulated lithium battery module is installed in the frame-shaped fixing plate 4 inside the lower bracket 1. L-shaped rubber corner pads 6 are used to ensure the lithium battery module 5 is securely installed, avoiding friction and collision caused by vibration. The upper bracket 7 is connected to the lower bracket 1 through rectangular inserts 700 and rectangular insertion holes 100, and bolts are used to ensure stability. The heat-insulating linings of the upper bracket 7 and the lower bracket 1 are properly fitted. When the lithium battery module 5 is charging or discharging, the fan 84 is started, generating airflow in the U-shaped heat insulation tube 80, so that the heat on the heat-conducting copper plate 81 can be dissipated with the airflow, preventing the lithium battery module from overheating and helping to dissipate heat. Through the above steps, the heat-insulated lithium battery module can be used effectively, ensuring its safety and service life.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat-insulated lithium battery module, comprising a lower support (1) and an upper support (7), characterized in that: The lower support (1) has a first heat-insulating liner (2) on its inner wall, and a first fireproof liner (3) on its inner wall. A frame-shaped fixing plate (4) is placed inside the first fireproof liner (3), and a lithium battery module (5) is installed inside the frame-shaped fixing plate (4). A heat sink (8) is provided on the upper support (7), and the heat sink (8) includes a U-shaped heat insulation pipe (80). Both ends of the U-shaped heat insulation pipe (80) penetrate the bottom of the inner wall of the upper support (7), and a thermally conductive copper conductor is provided through the bottom of the U-shaped heat insulation pipe (80). The bottom of the heat-conducting copper plate (81) is provided with a plurality of heat-conducting copper sheets (82) arranged equidistantly on the left and right. The right end of the top of the U-shaped heat insulation pipe (80) is provided with a cover plate (83). The top of the cover plate (83) is provided with a plurality of circular holes (830) arranged equidistantly on the front and back. The bottom of the cover plate (83) and the position of the circular holes (830) are provided with a fan (84). The inner wall of the upper bracket (7) is provided with a second heat insulation lining (71). The inner wall of the second heat insulation lining (71) is provided with a second fireproof lining (72).

2. The heat-insulating lithium battery module according to claim 1, characterized in that: The top of the outer wall of the lower bracket (1) is provided with a first frame-shaped connecting plate (10), and the top of the first frame-shaped connecting plate (10) is provided with a plurality of rectangular insertion holes (100). The bottom of the outer wall of the upper bracket (7) is provided with a second frame-shaped connecting plate (70), and the bottom of the second frame-shaped connecting plate (70) is provided with a plurality of rectangular insertion blocks (700). The plurality of rectangular insertion blocks (700) are respectively inserted into the plurality of rectangular insertion holes (100).

3. The heat-insulating lithium battery module according to claim 2, characterized in that: The rectangular plug (700) is detachably connected to the rectangular plug hole (100) by bolts.

4. The heat-insulating lithium battery module according to claim 1, characterized in that: The four corners of the inner wall of the first fireproof lining (3) are provided with L-shaped rubber corner pads (6), and the inner wall of the L-shaped rubber corner pads (6) is in contact with the outer wall of the corner of the frame-shaped fixing plate (4).

5. The heat-insulating lithium battery module according to claim 1, characterized in that: The bottom of the frame-shaped fixing plate (4) is provided with two U-shaped bottom plates (40) arranged symmetrically in front and behind. The bottom of the U-shaped bottom plate (40) abuts against the bottom of the inner wall of the first fireproof lining (3), and the bottom of the lithium battery module (5) abuts against the bottom of the inner wall of the U-shaped bottom plate (40).

6. The heat-insulating lithium battery module according to claim 1, characterized in that: The top left and right sides of the frame-shaped fixing plate (4) are provided with first handles (41), and the top of the first handles (41) protrudes from the top of the lower bracket (1).

7. The heat-insulating lithium battery module according to claim 1, characterized in that: The top of the upper bracket (7) is provided with two second handles (74) arranged symmetrically on the left and right. The top of the inner wall of the upper bracket (7) is provided with two strip positioning plates (73) arranged symmetrically on the front and back. The bottom of the strip positioning plates (73) abuts against the top of the lithium battery module (5).

8. The heat-insulating lithium battery module according to claim 1, characterized in that: A circular dustproof net (85) is provided inside the circular hole (830), and a rectangular dustproof net (86) is provided at the air outlet at the top left end of the U-shaped heat insulation pipe (80).

Images