New energy automobile battery pack protection structure

Abstract

The utility model relates to the field of new energy automobile battery packs, in particular to a new energy automobile battery pack protection structure. Comprising a frame plate, a plurality of battery bodies are fixedly connected in the frame plate, a protection structure is arranged on the surface of the frame plate, the protection structure comprises a connecting frame, the connecting frame is slidably connected with the frame plate, four connecting blocks are fixedly connected in the connecting frame, an auxiliary frame is placed on the upper surfaces of the battery bodies, and the auxiliary frame is fixedly connected with the connecting frame. The auxiliary frames are divided into five groups, fixing plates are fixedly connected to the sides, close to each other, of the auxiliary frames in each group, fixing frames are fixedly connected to the sides, close to each other, of the auxiliary frames in one group, and sealing plates are fixedly connected to the interiors of the fixing frames. The new energy automobile battery pack protection structure provided by the utility model has the advantages that the battery can be conveniently fixed, the heat upwelling of the battery during heat extraction can be avoided, and the heat generated by heat extraction can be discharged downwards.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle battery packs, and in particular to a protection structure for new energy vehicle battery packs. Background Technology

[0002] New energy battery packs are mainly used to store and release electrical energy and are core components in new energy vehicles, renewable energy systems, and other fields. They are typically composed of multiple battery cells, which are connected in parallel and series to form a battery pack to meet the voltage, capacity, and power requirements of specific applications.

[0003] Existing technologies, such as the invention patent application with publication number CN108598319A, disclose a new energy battery pack. This patent employs a structure of multiple lithium-ion battery modules arranged sequentially along a first direction. The lithium-ion battery module structure includes a module frame, with a thermally conductive silicone sheet fixed inside the module frame. Battery cells are respectively disposed on both sides of the thermally conductive silicone sheet, with the end face of the battery cell closest to the thermally conductive silicone sheet in contact with it. A housing plate is detachably fixed to both ends of the module frame, and the battery cell is located between the housing plate and the thermally conductive silicone sheet. The components of this new energy battery pack have good versatility, facilitating disassembly and installation between components. Simultaneously, the lithium-ion battery module as a whole possesses excellent shock resistance and heat dissipation performance.

[0004] The inventors discovered through everyday use that existing new energy battery packs typically require a high level of protection to prevent external physical impacts and internal short circuits or thermal runaway. However, the complex structure of battery packs and the connection and encapsulation of individual battery cells make protection design difficult, especially when subjected to external impacts, vibrations, or moisture intrusion, which can affect the protection effect. Batteries generate heat during charging and discharging, particularly under high-power operating conditions. This heat often rises from within the battery, and battery packs, typically sealed and highly integrated, struggle to dissipate heat effectively. This heat rise can lead to excessively high battery temperatures, causing performance degradation, shortened lifespan, and even safety risks such as thermal runaway.

[0005] This application provides another technical solution to this technical problem, aiming to provide those skilled in the art with multiple options for solving the problem. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies.

[0007] To solve the above-mentioned technical problems, this utility model provides a protection structure for a new energy vehicle battery pack, comprising: a frame plate, wherein a plurality of battery bodies are fixedly connected inside the frame plate, a protective structure is provided on the surface of the frame plate, the protective structure includes a connecting frame, the connecting frame is slidably connected to the frame plate, four connecting blocks are fixedly connected inside the connecting frame, an auxiliary frame is placed on the upper surface of the battery body, the plurality of auxiliary frames are divided into five groups, a fixing plate is fixedly connected to one side of each group of auxiliary frames that are close to each other, a fixing frame is fixedly connected to one side of each group of auxiliary frames that are close to each other, a sealing plate is fixedly connected inside the fixing frame, a connecting rod is fixedly connected to both ends of each group of auxiliary frames, a slot is opened on the inner wall of the connecting rod, the slot communicates with the auxiliary frame and the fixing frame, a plurality of heat dissipation plates are fixedly connected to the surface of the battery body, a baffle is fixedly connected inside the connection between each group of auxiliary frames and the connecting rod, the auxiliary frame is fixedly connected to the connecting block, and a flow frame is installed inside the auxiliary frame.

[0008] The aforementioned components achieve the following effects: When battery protection is required, the connecting frame is pulled to move, which in turn moves the connecting block, which in turn moves the auxiliary frame, which in turn moves the fixing plate and the fixing frame, which in turn moves the remaining auxiliary frames. The auxiliary frame then presses itself onto the battery body, securing it in place. The slot in the connecting rod then connects to the frame plate. Once the battery body dissipates heat, the heat is discharged into the slot through the fixing frame and auxiliary frames, and then the slot discharges the heat downwards, preventing heat from rising. The heat sink increases the heat dissipation efficiency of the battery body, and the auxiliary and connecting frames secure the battery body.

[0009] Preferably, the heat sink has a rectangular cross-section and is made of aluminum.

[0010] The effect achieved by the above components is that the aluminum plate can increase the heat dissipation efficiency of the battery body, which can greatly reduce the fire rate of the battery.

[0011] Preferably, the auxiliary frame is made of stainless steel and has a rectangular cross-section.

[0012] The effect achieved by the above components is that the stainless steel material can increase the service life of the auxiliary frame and prevent the auxiliary frame from rusting during use.

[0013] Preferably, the fixing plate is fixedly connected to the auxiliary frame by welding, and the cross-section of the fixing plate is rectangular.

[0014] Preferably, the frame plate has a plurality of connecting structures inside, the connecting structures including a slide groove, the slide groove being formed on the frame plate, a locking block being slidably connected to the inner wall of the slide groove, a locking groove being formed on the inner wall of the connecting frame, the locking groove engaging with the locking block, and a spring being provided inside the slide groove, the two ends of the spring being fixedly connected to the slider and the slide groove respectively.

[0015] The effect achieved by the above components is as follows: when it is necessary to connect the frame plate and the connecting frame, the connecting frame is pulled to move, the connecting frame drives the slot to move, and then the connecting frame is placed on the frame plate. The connecting frame drives the locking block to move, the locking block slides on the inner wall of the slide groove, the locking block drives the spring to retract, and after moving to the appropriate position, the spring stretches to drive the locking block to be locked into the slot for fixation.

[0016] Preferably, a limiting rod is fixedly connected inside the slide groove, the limiting rod is engaged with the locking block, and the spring is sleeved on the arc surface of the limiting rod.

[0017] The effect achieved by the above components is that the limiting rod can limit the spring, prevent the spring from deforming during use, and improve the service life of the spring.

[0018] Preferably, the corners of the card block are rounded, and the card block is a silicone block.

[0019] The effect achieved by the above components is that the silicone block has a certain degree of elasticity, which makes it easy to separate the card block from the card slot.

[0020] Compared with related technologies, the new energy vehicle battery pack protection structure provided by this utility model has the following beneficial effects:

[0021] This invention provides a protection structure for a new energy vehicle battery pack. By setting up this protective structure, it addresses the common need for high protection levels in existing new energy battery packs to prevent external physical impacts and internal short circuits or thermal runaway. However, the complex structure of battery packs and the connection and encapsulation of individual battery cells make protective design difficult, especially when subjected to external impacts, vibrations, or moisture intrusion, which can affect the protective effect. Batteries generate heat during charging and discharging, particularly under high-power operating conditions. This heat often rises from within the battery, and battery packs are typically sealed and highly integrated, making effective heat dissipation difficult. This heat rise can lead to excessively high battery temperatures, causing performance degradation, shortened lifespan, and even safety risks such as thermal runaway. This device provides convenient battery fixation and prevents heat rise during heat dissipation by directing the heat generated downwards.

[0022] By designing a connection structure, the connecting frame and frame plate can be easily and quickly installed and disassembled, thus facilitating rapid replacement when the battery is damaged. Attached Figure Description

[0023] Figure 1 A schematic diagram of a protection structure for a new energy vehicle battery pack provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the protective structure.

[0025] Figure 3 for Figure 2 The diagram shows a partial structural representation.

[0026] Figure 4 for Figure 3 The diagram shows a partial structure.

[0027] Figure 5 for Figure 2 The diagram shows the internal structure.

[0028] Figure 6 for Figure 1 The diagram shows the connection structure.

[0029] The following are the labeling elements in the diagram: 1. Frame plate; 2. Battery body; 3. Protective structure; 301. Connecting frame; 302. Connecting block; 303. Auxiliary frame; 304. Flow frame; 305. Connecting rod; 306. Baffle; 307. Sealing plate; 308. Fixing plate; 309. Fixing frame; 310. Groove; 311. Heat dissipation plate; 4. Connecting structure; 41. Slot; 42. Locking block; 43. Slide groove; 44. Spring; 45. Limiting rod. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0032] Please see Figures 1 to 6 The present invention provides a new energy vehicle battery pack protection structure, comprising: a frame plate 1, a plurality of battery bodies 2 fixedly connected inside the frame plate 1, a protective structure 3 on the surface of the frame plate 1, and a plurality of connecting structures 4 inside the frame plate 1.

[0033] In the embodiments of this utility model, please refer to Figures 2 to 5 The protective structure 3 includes a connecting frame 301, which is slidably connected to the frame plate 1. Four connecting blocks 302 are fixedly connected inside the connecting frame 301. An auxiliary frame 303 is placed on the upper surface of the battery body 2. Several auxiliary frames 303 are divided into five groups. A fixing plate 308 is fixedly connected to the side of each group of auxiliary frames 303 that is close to each other. A fixing frame 309 is fixedly connected to the side of each group of auxiliary frames 303 that is close to each other. A sealing plate 307 is fixedly connected inside the fixing frame 309. A connecting rod 305 is fixedly connected to both ends of each group of auxiliary frames 303. A slot 310 is opened on the inner wall of the connecting rod 305. The slot 310 communicates with the auxiliary frame 303 and the fixing frame 309. Several heat dissipation plates 311 are fixedly connected to the surface of the battery body 2. A baffle 306 is fixedly connected inside the connection between each group of auxiliary frames 303 and the connecting rod 305. The auxiliary frame 303 is fixedly connected to the connecting block 302. A flow frame 304 is installed inside the auxiliary frame 303. When the battery body 2 needs protection, the connecting frame 301 is pulled to move. The connecting frame 301 moves the connecting block 302, which in turn moves the auxiliary frame 303. The auxiliary frame 303 moves the fixing plate 308 and the fixing frame 309, which in turn moves the other auxiliary frames 303. Then, the auxiliary frame 303 is pressed onto the battery body 2 to fix the battery. The slot 310 in the connecting rod 305 is then connected to the frame plate 1. Once the battery body 2 dissipates heat, the heat is discharged into the slot 310 through the fixing frame 309 and the auxiliary frame 303. The slot 310 then discharges the heat downwards to prevent heat from rising. The heat sink 311 can increase the heat dissipation efficiency of the battery body 2. The auxiliary frame 303 and the connecting frame 301 can fix the battery body 2. The heat sink 311 has a rectangular cross-section and is made of aluminum. The aluminum plate can increase the heat dissipation efficiency of the battery body 2, which can greatly reduce the fire rate of the battery. The auxiliary frame 303 is made of stainless steel and has a rectangular cross-section. The stainless steel material can increase the service life of the auxiliary frame 303 and prevent it from rusting during use. The fixing plate 308 is fixedly connected to the auxiliary frame 303 by welding, and the fixing plate 308 has a rectangular cross-section.

[0034] In the embodiments of this utility model, please refer to Figure 1 and Figure 6The connecting structure 4 includes a slide 43, which is opened on the frame plate 1. A locking block 42 is slidably connected to the inner wall of the slide 43. A locking groove 41 is opened on the inner wall of the connecting frame 301. The locking groove 41 is engaged with the locking block 42. A spring 44 is provided inside the slide 43. The two ends of the spring 44 are fixedly connected to the slider and the slide 43 respectively. When it is necessary to connect the frame plate 1 to the connecting frame 301, the connecting frame 301 is pulled to move, causing the slot 41 to move. Then, the connecting frame 301 is placed on the frame plate 1, and the connecting frame 301 causes the locking block 42 to move. The locking block 42 slides on the inner wall of the slide groove 43, causing the spring 44 to retract. After moving to the appropriate position, the spring 44 stretches, causing the locking block 42 to engage with the slot 41 for fixation. A limiting rod 45 is fixedly connected inside the slide groove 43, and the limiting rod 45 engages with the locking block 42. The spring 44 is sleeved on the arc surface of the limiting rod 45. The limiting rod 45 can limit the spring 44, preventing deformation during use and improving the service life of the spring 44. The corners of the locking block 42 are rounded, and the locking block 42 is made of silicone. The silicone block has a certain elasticity, which can easily separate the locking block 42 from the slot 41.

[0035] The working principle of the new energy vehicle battery pack protection structure provided by this utility model is as follows: When it is necessary to protect the battery body 2, the connecting frame 301 is pulled to move, the connecting frame 301 drives the connecting block 302 to move, the connecting block 302 drives the auxiliary frame 303 to move, the auxiliary frame 303 drives the fixing plate 308 and the fixing frame 309 to move, the fixing plate 308 and the fixing frame 309 drive the remaining auxiliary frames 303 to move, and then the auxiliary frame 303 is pressed onto the battery body 2, and then the auxiliary frame 303 fixes the battery, and then the connecting rod 305 is... The slot 310 inside is connected to the frame plate 1. Once the battery body 2 dissipates heat, the heat is discharged into the slot 310 through the fixing frame 309 and the auxiliary frame 303. Then the slot 310 discharges the heat downward to prevent the heat from rising. The heat dissipation plate 311 can increase the heat dissipation efficiency of the battery body 2. The auxiliary frame 303 and the connecting frame 301 can fix the battery body 2. The aluminum plate can increase the heat dissipation efficiency of the battery body 2 and can greatly reduce the fire rate of the battery. The stainless steel material can increase the service life of the auxiliary frame 303 and prevent the auxiliary frame 303 from rusting during use.

[0036] When it is necessary to connect the frame plate 1 to the connecting frame 301, pull the connecting frame 301 to move it. The connecting frame 301 drives the slot 41 to move. Then, the connecting frame 301 is placed on the frame plate 1. The connecting frame 301 drives the locking block 42 to move. The locking block 42 slides on the inner wall of the slide groove 43. The locking block 42 drives the spring 44 to retract. After moving to the appropriate position, the spring 44 stretches and drives the locking block 42 to be locked into the slot 41 for fixation. The limiting rod 45 can limit the spring 44 to prevent the spring 44 from deforming during use and improve the service life of the spring 44. The silicone block has a certain elasticity, which can facilitate the separation of the locking block 42 from the slot 41.

[0037] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A protection structure for a new energy vehicle battery pack, characterized in that, include: A frame plate (1) is provided, and several battery bodies (2) are fixedly connected inside the frame plate (1). A protective structure (3) is provided on the surface of the frame plate (1). The protective structure (3) includes a connecting frame (301). The connecting frame (301) is slidably connected to the frame plate (1). Four connecting blocks (302) are fixedly connected inside the connecting frame (301). An auxiliary frame (303) is placed on the upper surface of the battery body (2). Several auxiliary frames (303) are divided into five groups. A fixing plate (308) is fixedly connected to the side of each group of auxiliary frames (303) that is close to each other. A fixing frame (309) is fixedly connected to the side of each group of auxiliary frames (303) that is close to each other. The fixed frame (309) is fixedly connected to a sealing plate (307). Each auxiliary frame (303) is fixedly connected to both ends with a connecting rod (305). The inner wall of the connecting rod (305) is provided with a slot (310). The slot (310) is connected to the auxiliary frame (303) and the fixed frame (309). Several heat dissipation plates (311) are fixedly connected to the surface of the battery body (2). A baffle (306) is fixedly connected to the connection between each auxiliary frame (303) and the connecting rod (305). The auxiliary frame (303) is fixedly connected to the connecting block (302). A flow frame (304) is installed inside the auxiliary frame (303).

2. The new energy vehicle battery pack protection structure according to claim 1, characterized in that, The heat sink (311) has a rectangular cross-section and is made of aluminum.

3. The new energy vehicle battery pack protection structure according to claim 1, characterized in that, The auxiliary frame (303) is made of stainless steel and has a rectangular cross-section.

4. The new energy vehicle battery pack protection structure according to claim 1, characterized in that, The fixing plate (308) is fixedly connected to the auxiliary frame (303) by welding, and the cross section of the fixing plate (308) is rectangular.

5. The new energy vehicle battery pack protection structure according to claim 1, characterized in that, The frame plate (1) is provided with several connecting structures (4) inside. The connecting structure (4) includes a sliding groove (43). The sliding groove (43) is opened on the frame plate (1). The inner wall of the sliding groove (43) is slidably connected with a locking block (42). The inner wall of the connecting frame (301) is provided with a locking groove (41). The locking groove (41) is engaged with the locking block (42). The sliding groove (43) is provided with a spring (44). The two ends of the spring (44) are fixedly connected to the slider and the sliding groove (43) respectively.

6. The new energy vehicle battery pack protection structure according to claim 5, characterized in that, The sliding groove (43) is fixedly connected to a limiting rod (45), which is engaged with a locking block (42). The spring (44) is sleeved on the arc surface of the limiting rod (45).

7. The new energy vehicle battery pack protection structure according to claim 5, characterized in that, The corners of the card block (42) are rounded, and the card block (42) is a silicone block.

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