Vehicle-mounted power battery pack with anti-collision structure

Abstract

The utility model discloses a vehicle-mounted power battery pack with an anti-collision structure, and relates to the technical field of vehicle-mounted power battery packs, the vehicle-mounted power battery pack comprises a lithium battery pack outer box, the side surface of the lithium battery pack outer box is provided with heat dissipation holes, the lithium battery pack outer box is internally provided with a battery pack, the surface of the lithium battery pack outer box is provided with a socket used for connecting the battery pack, and the socket is provided with an anti-collision structure. The periphery of the lithium battery pack outer box is fixedly connected with a fixing support, by arranging a first communication groove and a second communication groove, buffering oil is transferred from the interior of a fixing sleeve to the interior of a sliding rod when the fixing sleeve and the sliding rod conduct buffering, a second spring is matched with the buffering oil for buffering, and the buffering and stabilizing effects are achieved; a limiting block is arranged to be automatically unfolded and inserted into a limiting groove, a fixing condition is provided for an insertion block from the interior of a fixing base, the limiting block is retracted by pressing a handle, insertion and extraction of the insertion block are not interfered, the vehicle-mounted battery is rapidly fixed or disassembled, and maintenance and overhaul of the vehicle-mounted battery are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vehicle-mounted power battery pack, and specifically relates to a vehicle-mounted power battery pack with an anti-collision structure. BACKGROUND

[0002] Vehicle-mounted batteries are the energy cores of new energy vehicles. Lithium batteries have the advantages of high energy density, long cycle life and environmental protection. With continuous breakthroughs in innovation directions such as solid-state batteries and silicon-carbon negative electrode materials, vehicle-mounted lithium battery systems are usually equipped with battery management systems that can monitor in real time and prevent overcharging and overdischarging, effectively ensuring the balanced operation of battery packs, and vehicle-mounted lithium batteries exhibit high safety and long life characteristics.

[0003] For example, the patent with the authorization announcement number CN218586218U discloses a vehicle-mounted power lithium battery pack with an anti-collision structure. The lithium battery pack can be fixed to a vehicle and a device by setting a fixed bottom plate. When the lithium battery pack is subjected to a collision, part of the external force is offset by setting an air bag. Another part of the external force is offset by the spring extension structure rebounding. Finally, the protection shell offsets all the impact force, ensuring that the battery module is not damaged by external forces when the lithium battery pack is subjected to a collision, thereby reducing the risk of thermal runaway. The vehicle-mounted power lithium battery pack with an anti-collision structure uses a spring for shock absorption. During the spring shock absorption process, a large amount of high-speed vibration is generated for a short time, which can easily damage the connection position of the battery pack and pose a safety hazard. The fixed bottom plate is connected by bolts, and the disassembly steps are more, which is not convenient for quick maintenance.

[0004] Based on this, the vehicle-mounted power battery pack with an anti-collision structure is provided, which can eliminate the drawbacks of existing devices. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a vehicle-mounted power battery pack with an anti-collision structure to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The vehicle-mounted power battery pack with an anti-collision structure comprises a lithium battery pack outer box, a lithium battery pack outer box side is equipped with a heat dissipation hole, the lithium battery pack outer box inside is equipped with a battery pack, the lithium battery pack outer box surface is equipped with a socket for connecting the battery pack, the lithium battery pack outer box four quarters are fixedly connected with a fixed support respectively, the fixed support lower portion is equipped with a fixed seat, the fixed seat is arranged on the surface of the vehicle-mounted battery compartment, the lithium battery pack outer box inside is equipped with a damping mechanism, and the fixed support lower end is equipped with a quick release structure.

[0008] On the basis of the above technical scheme, the utility model also provides the following optional technical scheme:

[0009] In an optional scheme: the damping mechanism comprises a fixed sleeve, the fixed sleeve is fixedly connected with the inner wall of the lithium battery pack outer box, the fixed sleeve is slidingly connected with a sliding rod, the sliding rod is fixedly connected with a protective plate, the protective plate is fixedly connected with the battery pack, and the fixed sleeve is internally provided with a buffer assembly.

[0010] In an optional scheme: the buffer assembly comprises a fixed rod, the fixed rod is arranged in the fixed sleeve, the fixed sleeve is filled with buffer oil, the fixed rod is slidingly connected with the sliding rod, the surface of the fixed rod is fixedly connected with a piston block, the side surface of the piston block is provided with a spring element, and the fixed rod is provided with an oil conveying pipeline.

[0011] In an optional scheme: the spring element comprises a second spring, one end of the second spring is fixedly connected with one side of the piston block, the other end of the second spring is fixedly connected with the inner wall of the sliding rod, the other side of the piston block is fixedly connected with one end of a first spring, and the other end of the first spring is fixedly connected with the inner wall of the sliding rod.

[0012] In an optional scheme: the oil conveying pipeline comprises a first communication groove, a plurality of first communication grooves are uniformly arranged on the surface of the fixed rod, and a second communication groove is in communication with the plurality of first communication grooves.

[0013] In an optional scheme: the quick release structure comprises an insertion block, the lower end of the fixed support is fixedly connected with the insertion block, the insertion block is slidingly connected with a fixed seat, the inside of the insertion block is provided with a sliding seat, the sliding seat is slidingly connected with a sliding roller, the surface of the sliding roller is provided with a plurality of rotating seats, and the rotating seats are rotationally connected with limiting pieces.

[0014] In an optional scheme: the limiting piece comprises a limiting block, the limiting block is rotationally connected with the rotating seat, one end of a third spring is fixedly connected with the side surface of the limiting block, the other end of the third spring is fixedly connected with the surface of the sliding roller, the insertion block is provided with a first sliding groove matched with the limiting block, the inside of the fixed seat is provided with a limiting groove matched with the limiting block, and the lower end of the sliding roller is provided with a reset module.

[0015] In an optional scheme: the reset module comprises a fourth spring, the upper end of the fourth spring is fixedly connected with the insertion block, the lower end of the fourth spring is fixedly connected with the inner wall of the insertion block, the surface of the sliding roller is provided with a plurality of handles, and the surface of the insertion block is provided with a second sliding groove matched with the handles.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、The first communication groove and the second communication groove are arranged, buffer oil is transferred from the inside of the fixed sleeve to the inside of the sliding rod when the fixed sleeve and the sliding rod are buffered, the buffer oil is buffered in cooperation with the second spring, the buffering stability is achieved, and the battery pack is better protected.

[0018] 2. This utility model automatically unfolds and inserts into the limiting groove by setting a limiting block, providing fixing conditions for the plug from inside the fixing seat. By pressing the handle, the limiting block is retracted without interfering with the insertion and removal of the plug, which can quickly fix or remove the vehicle battery and facilitate the maintenance and repair of the vehicle battery. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the outer casing of the lithium battery pack of this utility model.

[0021] Figure 3 This is a schematic diagram of the sliding rod of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the fixing sleeve of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the second connecting groove of this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the fixing base of this utility model.

[0025] Figure 7 This is a schematic diagram of the handle of this utility model.

[0026] Figure 8 This is a schematic diagram of the insert block of this utility model.

[0027] Figure reference numerals: 101. Lithium battery pack outer casing, 102. Heat dissipation hole, 103. Battery pack, 104. Fixing bracket, 105. Fixing seat, 201. Fixing sleeve, 202. Sliding rod, 203. Piston block, 204. First spring, 205. Second spring, 206. First connecting groove, 207. Second connecting groove, 208. Fixing rod, 301. Insert block, 302. Sliding seat, 303. Sliding rod, 304. Handle, 305. Rotating seat, 306. Limiting block, 307. Third spring, 308. Fourth spring, 309. First sliding groove, 310. Second sliding groove. Detailed Implementation

[0028] 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.

[0029] In one embodiment, such as Figures 1-3As shown, a vehicle-mounted power battery pack with an anti-collision structure includes a lithium battery pack outer casing 101. The outer casing 101 has heat dissipation holes 102 on its side. A battery pack 103 is housed inside the outer casing 101. A socket for connecting the battery pack 103 is provided on the surface of the outer casing 101. A fixing bracket 104 is fixedly connected to each of the four sides of the outer casing 101. A fixing seat 105 is provided below the fixing bracket 104 and is located on the surface of the vehicle-mounted battery compartment. A shock-absorbing mechanism is provided inside the outer casing 101. A quick-release structure is provided at the lower end of the fixing bracket 104. The outer casing 101 provides protection for the battery pack 103, the heat dissipation holes 102 provide heat dissipation for the battery pack 103, and the fixing brackets 104 and fixing seat 105 provide conditions for installing the outer casing 101 into the vehicle-mounted battery compartment.

[0030] In one embodiment, such as Figure 3 and Figure 4 As shown, the shock absorption mechanism includes a fixed sleeve 201, which is fixedly connected to the inner wall of the outer casing 101 of the lithium battery pack. The fixed sleeve 201 is slidably connected to a sliding rod 202, which is fixedly connected to a protective plate. The protective plate is fixedly connected to the battery pack 103. The fixed sleeve 201 is provided with a buffer assembly. The fixed sleeve 201 and the sliding rod 202 provide sliding space, and the fixed sleeve 201 and the sliding rod 202 provide buffering conditions for the protective plate through their mutual cooperation. The protective plate provides protection for the battery pack 103.

[0031] In one embodiment, such as Figure 4 and Figure 5 As shown, the buffer assembly includes a fixed rod 208, which is disposed inside a fixed sleeve 201. The fixed sleeve 201 is filled with buffer oil. The fixed rod 208 is slidably connected to a sliding rod 202. A piston block 203 is fixedly connected to the surface of the fixed rod 208. A spring element is provided on the side of the piston block 203. An oil supply line is provided on the fixed rod 208. When subjected to impact, the fixed sleeve 201 moves toward the sliding rod 202. The fixed sleeve 201 drives the fixed rod 208 to slide inside the sliding rod 202. The fixed rod 208 drives the piston block 203 to move, thus providing conditions for buffering.

[0032] In one embodiment, such as Figure 4 and Figure 5As shown, the spring element includes a second spring 205. One end of the second spring 205 is fixedly connected to one side of the piston block 203, and the other end of the second spring 205 is fixedly connected to the inner wall of the sliding rod 202. One end of the first spring 204 is fixedly connected to the other side of the piston block 203, and the other end of the first spring 204 is fixedly connected to the inner wall of the sliding rod 202. When the fixed rod 208 drives the piston block 203 to move, the second spring 205 is subjected to pressure. When the impact ends, the second spring 205 drives the piston block 203 to reset. The first spring 204 provides cushioning from the side of the piston block 203.

[0033] In one embodiment, such as Figure 4 and Figure 5 As shown, the oil pipeline includes a first connecting groove 206. The surface of the fixed rod 208 is uniformly provided with a plurality of first connecting grooves 206. A second connecting groove 207 is connected between the plurality of first connecting grooves 206. When the fixed sleeve 201 moves toward the sliding rod 202, the buffer oil inside the fixed sleeve 201 is pressurized. The buffer oil enters the interior of the sliding rod 202 through the first connecting groove 206 and the second connecting groove 207, so that the sliding rod 202 and the buffer oil buffer the impact at the same time, reducing the damage to the battery pack 103 caused by the excessively fast deformation speed and large amplitude of the sliding rod 202. When the impact ends, the electric piston block 203 of the sliding rod 202 resets, and the piston block 203 squeezes the buffer oil back into the fixed sleeve 201 to prepare for the next buffering.

[0034] In one embodiment, such as Figure 6 and Figure 7 As shown, the quick-release structure includes an insert block 301. The lower end of the fixed bracket 104 is fixedly connected to the insert block 301. The insert block 301 is slidably connected to the fixed seat 105. The insert block 301 has a sliding seat 302 inside. The sliding seat 302 is slidably connected to the sliding roller 303. The surface of the sliding roller 303 is provided with several rotating seats 305. The rotating seats 305 are rotatably connected to the limiting member. By inserting the insert block 301 into the fixed seat 105, the fixed bracket 104 is quickly fixed, thus completing the quick installation of the vehicle battery.

[0035] In one embodiment, such as Figure 7 and Figure 8As shown, the limiting component includes a limiting block 306, which is rotatably connected to a rotating seat 305. One end of a third spring 307 is fixedly connected to the side of the limiting block 306, and the other end of the third spring 307 is fixedly connected to the surface of a sliding roller 303. The insert block 301 is provided with a first sliding groove 309 that matches the limiting block 306. The fixed seat 105 is provided with a limiting groove that matches the limiting block 306. The lower end of the sliding roller 303 is provided with a reset module. By inserting the insert block 301, the limiting block 306 retracts into the insert block 301. When the insert block 301 moves to the corresponding position, the third spring 307 drives the limiting block 306 to engage in the limiting groove, providing a limit for the insert block 301 inside the fixed seat 105, which facilitates the quick installation of the vehicle battery.

[0036] In one embodiment, such as Figure 7 and Figure 8 As shown, the reset module includes a fourth spring 308, with the upper end of the fourth spring 308 fixedly connected to the insert block 301 and the lower end of the fourth spring 308 fixedly connected to the inner wall of the insert block 301. The surface of the sliding roller 303 is provided with several handles 304, and the surface of the insert block 301 is provided with a second sliding groove 310 adapted to the handles 304. By pressing the handles 304, the handles 304 drive the insert block 301 to move downward, causing the limiting block 306 to retract into the insert block 301. At this time, the limiting block 306 does not interfere with the insertion and removal movement of the insert block 301. When the handles 304 are released, the insert block 301 is reset under the action of the fourth spring 308, causing the limiting block 306 to rotate and limit again.

[0037] The above embodiments disclose a vehicle-mounted power battery pack with an anti-collision structure. The lithium battery pack outer casing 101 provides protection for the battery pack 103, the heat dissipation holes 102 provide heat dissipation for the battery pack 103, the fixing bracket 104 and fixing seat 105 provide conditions for installing the lithium battery pack outer casing 101 into the vehicle battery compartment, the fixing sleeve 201 and sliding rod 202 provide sliding space, and the cooperation between the fixing sleeve 201 and sliding rod 202 provides buffering conditions for the protective plate. The protective plate provides protection for the battery pack 103 when impacted. When the fixed sleeve 201 moves towards the sliding rod 202, the fixed sleeve 201 drives the fixed rod 208 to slide within the sliding rod 202. The fixed rod 208 drives the piston block 203 to move, providing conditions for buffering. When the fixed rod 208 drives the piston block 203 to move, the second spring 205 is under pressure. When the impact ends, the second spring 205 drives the piston block 203 to reset. Buffering is provided from the side of the piston block 203 by the first spring 204. When the fixed sleeve 201 moves towards the sliding rod 202, the buffer oil inside the fixed sleeve 201 is under pressure, and the buffer oil flows through the first spring 204... The first connecting groove 206 and the second connecting groove 207 enter the interior of the sliding rod 202, allowing the sliding rod 202 and the buffer oil to simultaneously buffer the impact, reducing the damage to the battery pack 103 caused by excessively rapid or large deformation of the sliding rod 202. When the impact ends, the electric piston block 203 of the sliding rod 202 resets, and the piston block 203 re-squeezes the buffer oil into the fixing sleeve 201, preparing for the next buffering operation. The fixing bracket 104 is quickly fixed by inserting the insert block 301 into the fixing seat 105, completing the rapid installation of the vehicle battery. The insertion of the insert block 301 also limits the movement of the battery. Block 306 retracts into the insertion block 301. When the insertion block 301 moves to the corresponding position, the third spring 307 drives the limiting block 306 to engage in the limiting groove, providing a limit for the insertion block 301 inside the fixing seat 105, facilitating the quick installation of the vehicle battery. By pressing the handle 304, the handle 304 drives the insertion block 301 to move downward, causing the limiting block 306 to retract into the insertion block 301. At this time, the limiting block 306 does not interfere with the insertion and removal movement of the insertion block 301. When the handle 304 is released, the insertion block 301 resets under the action of the fourth spring 308, causing the limiting block 306 to rotate and limit again.

[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vehicle-mounted power battery pack with an anti-collision structure, comprising a lithium battery pack outer casing (101), wherein the lithium battery pack outer casing (101) has heat dissipation holes (102) on its side, a battery pack (103) is disposed inside the lithium battery pack outer casing (101), a socket for connecting the battery pack (103) is provided on the surface of the lithium battery pack outer casing (101), a fixing bracket (104) is fixedly connected to each of the four sides of the lithium battery pack outer casing (101), a fixing seat (105) is provided below the fixing bracket (104), and the fixing seat (105) is disposed on the surface of the vehicle-mounted battery compartment, characterized in that, The outer casing (101) of the lithium battery pack is equipped with a shock-absorbing mechanism, and the lower end of the fixed bracket (104) is equipped with a quick-release structure.

2. The vehicle-mounted power battery pack with an anti-collision structure according to claim 1, characterized in that, The shock absorption mechanism includes a fixed sleeve (201), which is fixedly connected to the inner wall of the outer casing (101) of the lithium battery pack. The fixed sleeve (201) is slidably connected to a sliding rod (202), which is fixedly connected to a protective plate. The protective plate is fixedly connected to the battery pack (103). A buffer assembly is provided inside the fixed sleeve (201).

3. The vehicle-mounted power battery pack with an anti-collision structure according to claim 2, characterized in that, The buffer assembly includes a fixed rod (208) located inside a fixed sleeve (201). The fixed sleeve (201) is filled with buffer oil. The fixed rod (208) is slidably connected to a sliding rod (202). A piston block (203) is fixedly connected to the surface of the fixed rod (208). A spring element is provided on the side of the piston block (203). An oil supply line is provided on the fixed rod (208).

4. The vehicle-mounted power battery pack with an anti-collision structure according to claim 3, characterized in that, The spring element includes a second spring (205), one end of which is fixedly connected to one side of the piston block (203), and the other end of which is fixedly connected to the inner wall of the sliding rod (202). The other side of the piston block (203) is fixedly connected to one end of a first spring (204), and the other end of the first spring (204) is fixedly connected to the inner wall of the sliding rod (202).

5. The vehicle-mounted power battery pack with an anti-collision structure according to claim 3, characterized in that, The oil pipeline includes a first connecting groove (206), and the surface of the fixed rod (208) is uniformly provided with a plurality of first connecting grooves (206), and a second connecting groove (207) is connected in the middle of the plurality of first connecting grooves (206).

6. The vehicle-mounted power battery pack with an anti-collision structure according to claim 1, characterized in that, The quick-release structure includes an insert block (301), the lower end of the fixed bracket (104) is fixedly connected to the insert block (301), the insert block (301) is slidably connected to the fixed seat (105), the insert block (301) is provided with a sliding seat (302) inside, the sliding seat (302) is slidably connected to the sliding roller (303), the surface of the sliding roller (303) is provided with a plurality of rotating seats (305), and the rotating seats (305) are rotatably connected to the limiting member.

7. The vehicle-mounted power battery pack with an anti-collision structure according to claim 6, characterized in that, The limiting component includes a limiting block (306), which is rotatably connected to a rotating seat (305). One end of a third spring (307) is fixedly connected to the side of the limiting block (306), and the other end of the third spring (307) is fixedly connected to the surface of a sliding roller (303). A first sliding groove (309) adapted to the limiting block (306) is provided on the insert (301). A limiting groove adapted to the limiting block (306) is provided inside the fixed seat (105). A reset module is provided at the lower end of the sliding roller (303).

8. The vehicle-mounted power battery pack with an anti-collision structure according to claim 7, characterized in that, The reset module includes a fourth spring (308), the upper end of which is fixedly connected to a plug (301), the lower end of which is fixedly connected to the inner wall of the plug (301), the surface of the sliding roller (303) is provided with a plurality of handles (304), and the surface of the plug (301) is provided with a second groove (310) that is adapted to the handles (304).

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