Fireproof and heat-insulating battery module

Abstract

The battery module comprises a battery pack main body, the bottom of the battery pack main body is provided with a bottom plate, the top of the battery pack main body is provided with a battery management assembly, an electrical connection point, a safety control assembly and the like, the inner side of the bottom plate is provided with an inner cavity, the top of the bottom plate is provided with a top frame, the side faces of the bottom plate are provided with exhaust ports, the left side and the right side of the bottom plate are provided with side frames, and the bottom of the bottom plate is provided with a bottom frame. The top frame, the side frames and the bottom frame are of a double-layer hollow structure, are made of steel materials and are connected with the upper cover in a clamped mode, a connecting frame is further arranged on the inner side of the bottom plate, a bottom strip, a side strip and a top strip are arranged in the connecting frame, are connected with the top frame, the side frames and the bottom frame in a clamped mode respectively and are fixed through bolt holes, and protection plates and insulation plates are arranged in the bottom plate in an array mode. The battery module has good fireproof and heat-insulating performance, the risk of thermal runaway can be effectively reduced, gas can be exhausted in time through the exhaust port, the safety is improved, the structural stability of the bottom plate is enhanced through the arrangement of the connecting frame and the strips, and the safety and the reliability are further improved through the protective plate and the insulating plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to new energy battery related technical field, concretely relates to a battery module with fireproof and heat insulation. BACKGROUND

[0002] Battery pack as the power source of new energy automobile, battery pack can store up electric energy, and according to the need in the vehicle driving process, electric energy is released to drive motor, drives the vehicle to travel, battery pack can adjust the size of output current and voltage, thereby control the speed and torque of drive motor, realize the acceleration, deceleration, climbing and other travel functions of vehicle, with the development of new material and the continuous progress of battery manufacturing process, the energy density of new energy battery pack is continuously improved, which means that battery pack can store more electric energy under the same volume or weight.

[0003] But with the rapid development of electric vehicles and other fields, the safety requirement of battery is higher and higher, the current battery module has the deficiency in fireproof and heat insulation, once heat runaway and other conditions occur, it is easy to cause safety accidents. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a battery module with fireproof and heat insulation to solve the problem of the increasing safety requirement of battery with the rapid development of electric vehicles and other fields, the deficiency of the current battery module in fireproof and heat insulation, and the easy occurrence of safety accidents once heat runaway and other conditions occur.

[0005] To achieve the above object, the utility model provides the following technical scheme: a battery module with fireproof and heat insulation, including battery pack main part,

[0006] The bottom plate is arranged at the bottom position of the battery pack main body, the battery management assembly is arranged at the top position of the battery pack main body, the electrical connection point is arranged at the right position of the battery management assembly, the safety control assembly is arranged at the left position of the battery management assembly, the positive connector and the negative connector are arranged at the left and right sides of the bottom of the safety control assembly, the explosion-proof valve is arranged at the left position of the top of the battery pack main body, the liquid inlet and outlet are arranged at the left and right sides of the top of the battery pack main body respectively, the upper cover is arranged at the top position of the battery pack main body, the detection port is arranged at the upper position of the upper cover, and the dismounting port is arranged at the left side of the detection port.

[0007] The inner cavity is arranged at the inner side position of the bottom plate, the top frame is arranged at the top position of the bottom plate, and the exhaust port is arranged at the side position of the bottom plate.

[0008] Preferably, the side frame is arranged at the left and right side positions of the bottom plate, and the bottom frame is arranged at the bottom position of the bottom plate.

[0009] Preferably, the top frame, side frame and bottom frame are made of steel material, and the inner cavity corresponds to the internal battery module.

[0010] Preferably, the top frame, side frame and bottom frame are made of steel material, and the inner cavity corresponds to the internal battery module.

[0011] Preferably, the bottom plate is provided with a connecting frame at the inner side position, and the connecting frame is provided with a bottom strip, a side strip and a top strip at the inner side position.

[0012] Preferably, the top strip, side strip and bottom strip are respectively clamped with the top frame, side frame and bottom frame, and the top strip, side strip and bottom strip are respectively fixedly connected with the top frame, side frame and bottom frame through the bolt holes arranged at the inner positions.

[0013] Preferably, the bottom plate is provided with a connecting frame at the inner side position, and the connecting frame is provided with a bottom strip, a side strip and a top strip at the inner side position.

[0014] Compared with the prior art, the battery module with fireproof and heat insulation has the following beneficial effects:

[0015] 1. By arranging the bottom plate, top frame, exhaust port, side frame and bottom frame, the top frame, side frame and bottom frame are made of double-layer hollow structure and steel material, which can effectively block heat transfer, provide good fireproof and heat insulation protection for the battery module, reduce the risk of thermal runaway, greatly improve the safety of the battery module, the bottom plate is connected with the upper cover through the clamping connection of the top frame, the connection mode is simple and stable, and the structural integrity of the battery module can be ensured under various use environments, the top frame, side frame and bottom frame made of steel material have high strength and rigidity, can withstand certain external force impact, protect the internal battery module from being damaged, the exhaust port on the side of the bottom plate can timely discharge the gas generated in the battery module, prevent the internal pressure from being too high to cause safety problems, and at the same time, in combination with the double-layer hollow structure, the heat dissipation is ensured, and the fireproof performance is further improved, the inner cavity corresponds to the internal battery module, and the shape and size of the battery module can be better adapted to the shape and size of the battery module, and the battery is provided with more accurate protection.

[0016] 2、Through the setting of the connecting frame, the bottom strip, the side strip and the top strip, the connecting frame on the inner side of the bottom plate provides a mounting base for the bottom strip, the side strip and the top strip, so that these strips can be more stably fixed on the bottom plate, the top strip, the side strip and the bottom strip are respectively clamped with the top frame, the side frame and the bottom frame, and are fixedly connected through the bolt holes opened in the internal array, and the double connection mode greatly enhances the structural stability of the whole battery module, can effectively prevent the structural deformation or damage caused by vibration or external force impact in the use process, the clamping and bolt connection mode makes the assembly and disassembly of the battery module more convenient and fast, during installation, the clamping preliminary positioning can be carried out first, and then the fastening is carried out through the bolt, the installation efficiency is improved, when internal components need to be repaired or replaced, the corresponding strip and frame body can also be easily disassembled, the repair cost and difficulty are reduced, the close connection of the top strip, the side strip and the bottom strip with the top frame, the side frame and the bottom frame can improve the sealing performance of the battery module, prevent external factors such as dust and moisture from entering the inside, cause damage to the battery, at the same time, the protection performance of the battery is also enhanced, the reliability and service life of the battery module are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model.

[0018] Figure 2 It is a structural schematic view of the top of the battery pack main body in the utility model.

[0019] Figure 3 It is a structural schematic view of the upper cover in the utility model.

[0020] Figure 4 It is a structural schematic view of the bottom plate in the utility model.

[0021] Figure 5 It is a structural schematic view of the inner cavity in the utility model.

[0022] Figure 6 It is a structural schematic view of the side frame in the utility model.

[0023] Figure 7 It is a structural schematic view of the top frame in the utility model.

[0024] Figure 8 It is a structural schematic view of the protective plate in the utility model.

[0025] In the diagram: 1. Battery pack body; 2. Base plate; 3. Electrical connection point; 4. Battery management component; 5. Safety control component; 6. Explosion-proof valve; 7. Positive connector; 8. Negative connector; 9. Liquid inlet / outlet; 10. Top cover; 11. Detection port; 12. Disassembly port; 13. Top frame; 14. Vent; 15. Inner cavity; 16. Side frame; 17. Bottom frame; 18. Bottom strip; 19. Side strip; 20. Top strip; 21. Connecting frame; 22. Insulating plate; 23. Protective plate. Detailed Implementation

[0026] 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.

[0027] This utility model provides, for example Figures 1-8 The battery module shown includes a fireproof and heat-insulating body 1.

[0028] A base plate 2 is provided at the bottom of the battery pack body 1, a battery management component 4 is provided at the top of the battery pack body 1, an electrical connection point 3 is provided on the right side of the battery management component 4, a safety control component 5 is provided on the left side of the battery management component 4, a positive connector 7 and a negative connector 8 are provided on the bottom left and right sides of the safety control component 5, an explosion-proof valve 6 is provided on the top left side of the battery pack body 1, liquid inlet and outlet ports 9 are provided on the top left and right sides of the battery pack body 1 respectively, a top cover 10 is provided at the top of the battery pack body 1, a detection port 11 is provided above the top cover 10, and a disassembly port 12 is provided on the left side of the detection port 11.

[0029] An inner cavity 15 is provided on the inner side of the base plate 2, a top frame 13 is provided on the top of the base plate 2, and an exhaust port 14 is provided on the side of the base plate 2.

[0030] Side frames 16 are provided on the left and right sides of the base plate 2, and a bottom frame 17 is provided at the bottom of the base plate 2.

[0031] The top frame 13, side frame 16 and bottom frame 17 have a double-layer hollow structure inside, and the bottom plate 2 and the top cover 10 are connected by snap-fitting the top frame 13.

[0032] The top frame 13, side frame 16 and bottom frame 17 are made of steel, and the inner cavity 15 corresponds to the internal battery module.

[0033] A connecting frame 21 is provided on the inner side of the base plate 2, and a bottom strip 18, a side strip 19 and a top strip 20 are provided on the inner side of the connecting frame 21.

[0034] The top strip 20, the side strip 19 and the bottom strip 18 are respectively clamped with the top frame 13, the side frame 16 and the bottom frame 17, and the top strip 20, the side strip 19 and the bottom strip 18 are respectively fixedly connected with the top frame 13, the side frame 16 and the bottom frame 17 through the bolt holes arranged in array at the internal positions.

[0035] The bottom plate 2 is arranged with the protection plate 23 at the internal position in array, and the protection plate 23 is arranged with the insulation plate 22 at the external position.

[0036] In the embodiment, the specific implementation steps of the battery module with fireproof and heat insulation are as follows: firstly, appearance inspection is performed on the battery module before installation, whether there is obvious damage or foreign matter attached to the surface of the battery pack body 1, the upper cover 10 and each connecting component such as the top frame 13, the side frame 16, the bottom frame 17 and the like is checked, whether the key parts such as the battery management assembly 4, the safety control assembly 5 and the electrical connection point 3 are normal is checked, it is ensured that the positive connector 7 and the negative connector 8 are not loose or abnormal, it is confirmed that the state of the explosion-proof valve 6 and the inlet and outlet liquid port 9 is good, there is no blockage or damage sign, the sealing property of the detection port 11 and the dismounting port 12 is normal, the battery module is placed in a suitable installation position, the bottom plate 2 is in good contact with the installation plane, attention is paid to the fact that the bottom frame 17 at the bottom of the bottom plate 2 is placed stably, and the side exhaust port 14 is considered not to be blocked, so as to ensure that the gas can be normally discharged in special cases, when electrical connection is performed, the external circuit is connected with the electrical connection point 3 and the positive connector 7 and the negative connector 8 according to the correct polarity and connection specification, it is ensured that the connection is firm during the connection process, and conditions such as virtual connection are avoided, during the operation process of the battery module, some parameters in the battery module can be detected regularly through the detection port 11, such as temperature, voltage and the like, so as to monitor the operation state of the battery module, if the battery module needs to be overhauled or maintained, the dismounting port 12 is opened, the components such as the upper cover 10 are dismounted according to the specified operation process, the inside is entered to operate, after the operation is completed, it is ensured that each component is correctly installed and sealed to restore the original state, when the battery module reaches the service life or needs to be replaced due to failure, all electrical connections are disconnected, then the whole battery module is carefully removed from the installation position, and it is properly handled according to the relevant environmental protection requirements.

[0037] As shown in Figures 1-7 The bottom plate 2 is arranged with the inner cavity 15 at the internal position, the top frame 13 at the top position, the exhaust port 14 at the side position, the side frame 16 at the left and right positions, and the bottom frame 17 at the bottom position, the inside of the top frame 13, the side frame 16 and the bottom frame 17 is a double-layer hollow joint structure, the bottom plate 2 is clamped and connected with the upper cover 10 through the top frame 13, the top frame 13, the side frame 16 and the bottom frame 17 are made of steel material, and the inner cavity 15 corresponds to the internal battery module.

[0038] Preferably, the top frame 13, the side frame 16 and the bottom frame 17 are internally double-layer hollow structures and are made of steel material, which can effectively block heat transfer and provide good fireproof and heatproof protection for the battery module, reduce the risk of thermal runaway, and greatly improve the safety of the battery module. The bottom plate 2 is connected with the upper cover 10 through the top frame 13, the connection mode is simple and stable, and the structural integrity of the battery module can be ensured in various use environments. The top frame 13, the side frame 16 and the bottom frame 17 made of steel material have high strength and rigidity, can withstand certain external force impact, protect the internal battery module from damage, the exhaust port 14 on the side of the bottom plate 2 can timely exhaust the gas generated in the battery module, prevent the internal pressure from being too high to cause safety problems, and at the same time, in combination with the double-layer hollow structure, the heat dissipation is ensured, and the fireproof performance is further improved. The inner cavity 15 corresponds to the internal battery module, which can better adapt to the shape and size of the battery module, and provide more accurate protection for the battery.

[0039] As shown in Figure 8 , the bottom plate 2 is provided with a connecting frame 21 at the inner side position, the connecting frame 21 is provided with a bottom strip 18, a side strip 19 and a top strip 20 at the inner side position, the top strip 20, the side strip 19 and the bottom strip 18 are respectively connected with the top frame 13, the side frame 16 and the bottom frame 17, and are fixedly connected with the top frame 13, the side frame 16 and the bottom frame 17 through the bolt holes arrayed at the internal position.

[0040] Preferably, the connecting frame 21 at the inner side of the bottom plate 2 provides a mounting basis for the bottom strip 18, the side strip 19 and the top strip 20, so that these strips can be more stably fixed on the bottom plate. The top strip 20, the side strip 19 and the bottom strip 18 are respectively connected with the top frame 13, the side frame 16 and the bottom frame 17, and are fixedly connected with the top frame 13, the side frame 16 and the bottom frame 17 through the bolt holes arrayed at the internal position. This double connection mode greatly enhances the structural stability of the entire battery module, which can effectively prevent structural deformation or damage caused by vibration or external force impact during use. The clamping and bolt connection mode makes the assembly and disassembly of the battery module more convenient and fast. During installation, clamping can be performed for preliminary positioning, and then fastening can be performed through bolts, which improves the installation efficiency. When internal components need to be repaired or replaced, the corresponding strips and frames can also be easily disassembled, which reduces the maintenance cost and difficulty. The close connection of the top strip 20, the side strip 19 and the bottom strip 18 with the top frame 13, the side frame 16 and the bottom frame 17 can improve the sealing performance of the battery module, prevent dust, moisture and other external factors from entering the inside, and cause damage to the battery. At the same time, the protection performance of the battery is also enhanced, and the reliability and service life of the battery module are improved.

[0041] As shown in Figures 1-8 , the bottom plate 2 is provided with a connecting frame 21 at the inner side position, the connecting frame 21 is provided with a bottom strip 18, a side strip 19 and a top strip 20 at the inner side position, the top strip 20, the side strip 19 and the bottom strip 18 are respectively connected with the top frame 13, the side frame 16 and the bottom frame 17, and are fixedly connected with the top frame 13, the side frame 16 and the bottom frame 17 through the bolt holes arrayed at the internal position.

[0042] Optionally, the protection plates 23 arranged in an array inside the bottom plate 2 can provide physical protection for the battery module, prevent the battery from being damaged by the impact or extrusion of external objects, and in the event of an accident, the protection plates can absorb part of the impact force, reducing the risk of damage to the battery. The arrangement of the insulating plate 22 can effectively prevent the battery from leaking electricity and avoid electric shock accidents, greatly improving the safety of the battery module.

[0043] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A battery module with fireproof and thermal insulation, comprising a battery pack body (1); The bottom plate (2) is arranged at the bottom position of the battery pack body (1), the battery management assembly (4) is arranged at the top position of the battery pack body (1), the electrical connection point (3) is arranged at the right position of the battery management assembly (4), the safety control assembly (5) is arranged at the left position of the battery management assembly (4), the positive connector (7) and the negative connector (8) are arranged at the left and right sides of the bottom of the safety control assembly (5), the explosion-proof valve (6) is arranged at the left top position of the battery pack body (1), the liquid inlet and outlet (9) is arranged at the left and right sides of the top of the battery pack body (1), the upper cover (10) is arranged at the top position of the battery pack body (1), the detection port (11) is arranged above the upper cover (10), and the dismounting port (12) is arranged at the left side of the detection port (11). characterized in that The inner cavity (15) is arranged at the inner side position of the bottom plate (2), the top frame (13) is arranged at the top position of the bottom plate (2), and the exhaust port (14) is arranged at the side position of the bottom plate (2).

2. The battery module with fireproof and thermal insulation according to claim 1, characterized in that: The side frame (16) is arranged at the left and right sides of the bottom plate (2), and the bottom frame (17) is arranged at the bottom position of the bottom plate (2).

3. The battery module with fireproof and thermal insulation according to claim 2, characterized in that: The top frame (13), the side frame (16) and the bottom frame (17) are double-layer hollow joint structures, and the bottom plate (2) and the upper cover (10) are connected through the top frame (13).

4. The battery module with fireproof and thermal insulation according to claim 3, characterized in that: The top frame (13), the side frame (16) and the bottom frame (17) are made of steel material, and the inner cavity (15) corresponds to the internal battery module.

5. The battery module with fireproof thermal insulation according to claim 1, characterized in that: The connecting frame (21) is arranged at the inner side position of the bottom plate (2), the bottom strip (18), the side strip (19) and the top strip (20) are arranged at the inner side position of the connecting frame (21).

6. The battery module with fireproof thermal insulation according to claim 5, characterized in that: The top strip (20), the side strip (19) and the bottom strip (18) are respectively connected with the top frame (13), the side frame (16) and the bottom frame (17), and the top strip (20), the side strip (19) and the bottom strip (18) are respectively fixedly connected with the top frame (13), the side frame (16) and the bottom frame (17) through the bolt holes arranged at the internal positions.

7. The battery module with fireproof thermal insulation according to claim 6, characterized in that: The protection plate (23) is arranged at the internal position of the bottom plate (2), and the insulation plate (22) is arranged at the outer side position of the protection plate (23).

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