Disassembling and assembling structure of upper cover of large battery pack

Abstract

The utility model provides a disassembly and assembly structure for an upper cover of a large-sized battery pack. The disassembly and assembly structure comprises a battery pack box body, and the upper cover is arranged at the top of the battery pack box body through a fastener. According to the disassembly and assembly structure of the upper cover of the large-sized battery pack provided by the utility model, a plurality of fixing blocks and inserting blocks are mounted at the bottom of the upper cover, and a plurality of supporting connecting plates and clamping blocks are mounted on the surface of the lower box body, so that buckles can be mounted on the surfaces of the inserting blocks in advance, and then when the upper cover is mounted, the buckles are embedded on the outer surfaces of the clamping blocks; the device is simple in structure and high in practicability, a plurality of buckling points are designed in the middle of the lower box body, the clamping blocks can be buckled through the buckles when the upper cover is covered, it is guaranteed that the upper cover is not affected by vibration, meanwhile, the buckling structure is convenient to disassemble, and the practicability is high. The upper cover can be conveniently dismounted when the battery needs to be maintained, and the dismounting efficiency of the upper cover is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery packs, and in particular to a disassembly and assembly structure for a large battery pack cover. Background Technology

[0002] Battery system heat dissipation refers to a series of methods and technologies that control the heat generated by the battery during charging and discharging to ensure that it operates within a safe and efficient temperature range. Common heat dissipation methods include air cooling, liquid cooling, and phase change materials. Effective heat dissipation design can extend battery life, improve performance, and ensure safety.

[0003] Containerized battery packs are often very large, with a width of nearly 1 meter and a depth of nearly 2 meters. The top cover of the battery pack is only fixed to the container body around the perimeter with fasteners. Under ship operation, the middle part of the water-cooled plate is very easy to deform due to vibration. Under vehicle operation, the internal battery pack is also affected by vibration, and there is a possibility that the vibration will contact the aluminum busbar above the battery cell, causing a short circuit, which is a poor safety feature.

[0004] Therefore, it is necessary to provide a disassembly and assembly structure for a large battery pack cover to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model provides a disassembly and assembly structure for a large battery pack cover, which solves the problem that the battery pack cover is only fixed to the box body around the perimeter with fasteners. In ship operation, the middle part of the cover is very easy to deform due to vibration. In vehicle operation, the internal battery pack is also affected by vibration, and there is a possibility that the cover may come into contact with the aluminum busbar above the battery cells under vibration, resulting in a short circuit and poor safety.

[0006] To solve the above-mentioned technical problems, this utility model provides a disassembly and assembly structure for a large battery pack cover, comprising: a battery pack housing;

[0007] The top cover is fastened to the top of the battery pack box by fasteners. A fixing block is fixedly connected to the bottom of the top cover. An insert block is fixedly installed on the bottom of one side of the fixing block. A buckle is slidably installed on the outer surface of the insert block. The buckle includes a connecting block, a slot, a mounting box, a mounting groove, and a locking plate. The design of the top cover can be a regular sheet metal top cover or a water-cooled plate top cover. This utility model is described using a water-cooled plate top cover as an example.

[0008] The lower housing is fixed to the bottom of the battery pack housing by fasteners, and a connecting plate is fixedly installed on the top of the lower housing, with a locking block fixedly installed on the top of the connecting plate.

[0009] Preferably, the connecting block is sleeved on the outer surface of the plug block, the clamping groove is arranged in the middle of one side of the connecting block, the mounting box is fixedly installed at the bottom of the connecting block, the mounting groove is arranged in the middle of the bottom of the mounting box, and the two clamping plates are fixedly connected to the bottoms of the two side walls of the inner cavity of the mounting groove respectively.

[0010] Preferably, the clamping plate is made of spring plate material.

[0011] Preferably, the outer surface of the mounting box is provided with a communication groove on both sides, a sliding groove is communicated with the top of the inner cavity wall of the communication groove on one side, a sliding rod is fixedly installed in the sliding groove, and a spring is sleeved on one side of the outer surface of the sliding rod.

[0012] Preferably, the sliding rod is sleeved with a mounting device on the other side of the outer surface, the mounting device comprises a moving block, a pressing block and a sliding block, the moving block is slidingly installed in the inner cavity of the communication groove, the pressing block is fixedly installed on one side of the outer surface of the moving block, and the sliding block is fixedly installed on one side of the top of the pressing block.

[0013] Preferably, one end of the spring is fixedly connected to one side of the inner cavity wall of the sliding groove, and the other end of the spring is fixedly connected to the outer surface of the sliding block.

[0014] Preferably, the bottom of the pressing block is arranged in an inclined shape.

[0015] Compared with the related art, the dismounting structure of the upper cover of the large battery pack has the following beneficial effects:

[0016] The utility model provides a kind of dismounting structure of large battery pack upper cover, by installing multiple fixed blocks and plug block in upper cover bottom, install multiple support connecting plate and clamping block on the surface of lower box body, can install clasp in the surface of plug block in advance, then install upper cover, clasp is embedded in the outer surface of clamping block, so that when upper cover is installed on the surface of battery pack box body, the middle of upper cover is also limited, the device structure is simple, and practicality is strong, multiple clasp points are designed in the middle of lower box body, when upper cover is covered, it can be buckled by clasp Block, ensure that water cooling plate is not affected by vibration, while clasp structure is convenient to disassemble, it is convenient to disassemble upper cover when battery needs to be maintained, improve the dismounting efficiency of upper cover. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the structure diagram of the first embodiment of the dismounting structure of large battery pack upper cover provided by the utility model;

[0018] Figure 2 It is Figure 1 It is the upper cover bottom view schematic drawing shown in the figure;

[0019] Figure 3 It isFigure 2 the enlarged view at A shown in the figure;

[0020] Figure 4 As Figure 1 the battery pack box body cross-sectional view schematic diagram shown in the figure;

[0021] Figure 5 As Figure 4 the enlarged view at B shown in the figure;

[0022] Figure 6 As the second embodiment of the structure schematic diagram of the dismounting structure of the large battery pack upper cover provided by the utility model;

[0023] Figure 7 Figure 6 As the enlarged view at C shown in the figure.

[0024] Reference numerals in the figure: 1, battery pack box body, 2, upper cover, 3, lower box body (the design takes the lower box body with water cooling plate as an example), 4, water flow channel, 5, fixed block, 6, plug block, 7, buckle, 71, connecting block, 72, clamping groove, 73, mounting box, 74, mounting groove, 75, clamping plate, 8, connecting plate, 9, clamping block, 10, mounting device, 101, moving block, 102, extrusion block, 103, sliding block, 11, communication groove, 12, sliding groove, 13, sliding rod, 14, spring. DETAILED DESCRIPTION

[0025] The utility model will be further explained in connection with the drawings and embodiments.

[0026] First embodiment

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , among them, Figure 1 the structure schematic diagram of the dismounting structure of the large battery pack upper cover provided by the utility model is shown in the figure; Figure 2 As Figure 1 the upper cover bottom view schematic diagram shown in the figure; Figure 3 As Figure 2 the enlarged view at A shown in the figure; Figure 4 As Figure 1 the battery pack box body cross-sectional view schematic diagram shown in the figure; Figure 5 As Figure 4 the enlarged view at B shown in the figure. The dismounting structure of the large battery pack upper cover comprises a battery pack box body 1;

[0028] An upper cover 2 is arranged on the top of the battery pack box body 1 through fasteners, the bottom of the upper cover 2 is fixedly connected with a fixed block 5, the bottom of one side of the fixed block 5 is fixedly installed with an insertion block 6, the outer surface of the insertion block 6 is slidably installed with a buckle 7, and the buckle 7 comprises a connecting block 71, a clamping groove 72, a mounting box 73, a mounting groove 74 and a clamping plate 75.

[0029] A lower box body 3 is arranged on the bottom of the battery pack box body 1 through fasteners, the top of the lower box body 3 is fixedly installed with a connecting plate 8, and the top of the connecting plate 8 is fixedly installed with a clamping block 9.

[0030] The connecting block 71 is sleeved on the outer surface of the insertion block 6, the clamping groove 72 is formed in the middle of one side of the connecting block 71, the mounting box 73 is fixedly installed at the bottom of the connecting block 71, the mounting groove 74 is formed in the middle of the bottom of the mounting box 73, and the two clamping plates 75 are fixedly connected to the bottoms of the two side walls in the inner cavity of the mounting groove 74.

[0031] The clamping plate 75 is made of spring plate material.

[0032] The process of opening the upper cover may damage the buckle 7, and the damaged buckle 7 can be slid off from the surface of the insertion block 6 through the clamping groove 72 and can be conveniently disassembled and replaced with a new one.

[0033] The clamping plate 75 has a deformable efficiency and a restoring force, and when the two clamping plates 75 are pressed by the clamping block 9, the two clamping plates 75 are expanded on the two sides, and when the clamping block 9 is completely embedded in the inner part of the mounting groove 74, the restoring force of the two clamping plates 75 restores and drags the bottom of the clamping block 9.

[0034] The battery pack has more application environments such as ships and vehicles.

[0035] The working principle of the dismounting structure of the large battery pack upper cover is as follows:

[0036] In work, firstly, a plurality of fixed blocks 5 and insertion blocks 6 are installed on the bottom of the upper cover 2, and a plurality of supporting connecting plates 8 and clamping blocks 9 are installed on the surface of the lower box body 3.

[0037] When the lower box body 3 is installed at the bottom of the battery pack box body 1, the plurality of connecting plates 8 vertically pass through the battery pack box body 1 to connect the clamping blocks 9, the connecting plate 8 is arranged on the two sides of the surface of the plurality of battery cells, the buckle 7 can be installed on the surface of the insertion block 6 in advance, and then the upper cover 2 is installed on the top of the battery pack box body 1.

[0038] The buckle 7 is embedded in the inner part of the mounting groove 74 through the two clamping plates 75 of the spring plate, and clamping is formed.

[0039] When the upper cover 2 needs to be disassembled, the user pulls the upper cover 2 upward, and the restoring elasticity of the clamping plate 75 is used to pull out from the surface of the clamping block 9.

[0040] A water flow channel 4 is arranged in the middle of the surface of the upper cover 2 and the lower box body 3.

[0041] Compared with the related art, the dismounting structure of the upper cover of the large battery pack has the following beneficial effects:

[0042] The dismounting structure of the upper cover of the large battery pack is characterized in that a plurality of fixing blocks 5 and plug blocks 6 are arranged at the bottom of the upper cover 2, a plurality of supporting connecting plates 8 and clamping blocks 9 are arranged on the surface of the lower box body 3, the clamping buckle 7 is arranged on the surface of the plug block 6 in advance, and when the upper cover 2 is arranged, the clamping buckle 7 is embedded on the outer surface of the clamping block 9, so that the middle of the upper cover is also limited when the water-cooled plate surface is arranged on the surface of the battery pack box body 1. The device has the advantages of simple structure, high practicability, multiple clamping buckle points arranged in the middle of the lower box body 3, the clamping buckle 7 buckling the clamping block 9 when the upper cover 2 is arranged, the water-cooled plate not being affected by vibration, the clamping buckle 7 structure being convenient to disassemble, the upper cover being convenient to disassemble when the battery needs to be maintained, and the dismounting efficiency of the upper cover being improved.

[0043] Second embodiment

[0044] Please refer to Figure 6 and Figure 7 , based on the dismounting structure of the upper cover of the large battery pack provided in the first embodiment of the application, the second embodiment of the application provides another dismounting structure of the upper cover of the large battery pack. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the separate implementation of the first embodiment.

[0045] Specifically, the dismounting structure of the upper cover of the large battery pack provided in the second embodiment of the application is different from the first embodiment in that the outer surface of the mounting box 73 is provided with a communication groove 11 on both sides, the inner cavity wall of the communication groove 11 is communicated with a sliding groove 12 on one side of the top, the sliding groove 12 is fixedly installed with a sliding rod 13 inside, and the outer surface of the sliding rod 13 is sleeved with a spring 14 on one side.

[0046] The other side of the outer surface of the sliding rod 13 is sleeved with a mounting device 10, the mounting device 10 includes a moving block 101, an extrusion block 102 and a sliding block 103, the moving block 101 is slidingly installed in the inner part of the communication groove 11, the extrusion block 102 is fixedly installed on one side of the outer surface of the moving block 101, and the sliding block 103 is fixedly installed on one side of the top of the extrusion block 102.

[0047] One end of the spring 14 is fixedly connected to one side of the inner cavity wall of the sliding groove 12, and the other end of the spring 14 is fixedly connected to the outer surface of the sliding block 103.

[0048] The bottom of the extrusion block 103 is provided with an inclined surface.

[0049] The working principle of the dismounting structure of the large battery pack upper cover provided by the utility model is as follows:

[0050] In operation, first, the installation box 73 is extruded downwards through the installation slot 74 to align with the clamping block 9, the clamping block 9 is extruded along the inclined surface of the extrusion block 102, the extrusion block 102 is extruded into the inside of the communication slot 11, the extrusion block 102 drives the movement block 101 and the sliding block 103 to move, and the sliding block 103 is extruded to slide along the surface of the sliding rod 13.

[0051] When the clamping block 9 is embedded into the inside of the installation slot 74 and no longer limits the extrusion block 102, the restoring force of the spring 14 pushes the sliding block 103, so that the extrusion block 102 is moved out of the communication slot 11 again and abuts against the bottom surface of the clamping block 9.

[0052] Compared with the related art, the dismounting structure of the large battery pack upper cover provided by the utility model has the following beneficial effects:

[0053] The dismounting structure of the large battery pack upper cover provided by the utility model has the following beneficial effects:

[0054] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A disassembly and assembly structure for a large battery pack cover, characterized in that, include: Battery pack housing; The top cover is fastened to the top of the battery pack box by fasteners. A fixing block is fixedly connected to the bottom of the top cover. An insert block is fixedly installed on the bottom of one side of the fixing block. A buckle is slidably installed on the outer surface of the insert block. The buckle includes a connecting block, a slot, a mounting box, a mounting groove, and a locking plate. The lower housing is fixed to the bottom of the battery pack housing by fasteners, and a connecting plate is fixedly installed on the top of the lower housing, with a locking block fixedly installed on the top of the connecting plate.

2. The disassembly and assembly structure for a large battery pack cover according to claim 1, characterized in that, The connecting block is sleeved on the outer surface of the insert block, the slot is opened in the middle of one side of the connecting block, the mounting box is fixedly installed on the bottom of the connecting block, the mounting groove is opened in the middle of the bottom of the mounting box, and the two clamping plates are respectively fixedly connected to the bottom of both sides of the inner wall of the mounting groove.

3. The disassembly and assembly structure for a large battery pack cover according to claim 1, characterized in that, The card plate is made of spring plate material.

4. The disassembly and assembly structure for a large battery pack cover according to claim 1, characterized in that, Both sides of the outer surface of the mounting box are provided with connecting grooves. The top side of the inner wall of the connecting groove is connected to a sliding groove. A sliding rod is fixedly installed inside the sliding groove, and a spring is sleeved on one side of the outer surface of the sliding rod.

5. The disassembly and assembly structure for a large battery pack cover according to claim 4, characterized in that, An installation device is fitted on the other side of the outer surface of the slide bar. The installation device includes a moving block, a pressing block, and a slider. The moving block is slidably installed inside the communicating groove. The pressing block is fixedly installed on one side of the outer surface of the moving block. The slider is fixedly installed on one side of the top of the pressing block.

6. The disassembly and assembly structure for a large battery pack cover according to claim 5, characterized in that, One end of the spring is fixedly connected to one side of the inner wall of the groove, and the other end of the spring is fixedly connected to the outer surface of the slider.

7. The disassembly and assembly structure for a large battery pack cover according to claim 5, characterized in that, The bottom of the extrusion block is inclined.

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