A double-layer battery cell module fixing structure and a double-layer battery cell module

Abstract

The utility model discloses a double -deck electric core module fixed structure and double -deck electric core module, its characterized in that, including: upper electric core assembly, upper layer module end board, lower electric core assembly, lower layer module end board, first bolt, the both ends of upper electric core assembly all install an upper layer module end board, the both ends of lower electric core assembly all install a lower layer module end board, a plurality of first bolts pass through upper layer module end board, and be fixed in lower layer module end board. Through the application of the utility model, provide a double -deck electric core module fixed structure and double -deck electric core module, the both ends of the device in upper electric core assembly install upper layer module end board, install lower layer module end board in the both ends of lower electric core assembly, and first bolt installs upper electric core assembly and lower electric core assembly together through upper layer module end board and lower layer module end board, and upper layer module end board and lower layer module end board simple structure, reduce the number of parts, reduce the module weight, and the production cost is lower, and the strength is higher, and the installation is convenient and is convenient for transportation.

Description

Technical Field

[0001] This utility model relates to the technical field of double-layer battery modules, and in particular to a fixing structure for a double-layer battery cell module and a double-layer battery cell module. Background Technology

[0002] Currently, most double-layer battery cell modules use an intermediate bracket as the connecting component between modules. The upper and lower battery cell modules are connected by the intermediate bracket. This installation method increases the number of connecting parts, leading to a greater risk of vibration failure.

[0003] For example, in the existing patent CN211428246U, the fixing method involves bolts passing through the first battery module, the bracket, and the second battery module in sequence and fixing them to the base, thereby fixing the upper and lower battery modules. The first and second battery modules are installed together by the bracket. This fixing method not only increases the weight of the first and second battery modules, but also increases the number of connecting parts between the first and second battery modules, thus increasing manufacturing and transportation costs. Utility Model Content

[0004] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a double-layer battery cell module fixing structure, which includes:

[0005] Upper cell assembly, upper module end plate, lower cell assembly, lower module end plate, first bolt;

[0006] Each end of the upper-layer battery cell assembly is equipped with an upper-layer module end plate;

[0007] Each end of the lower-level cell assembly is equipped with a lower-level module end plate;

[0008] Several of the first bolts pass through the upper module end plate and are fixed to the lower module end plate.

[0009] The aforementioned double-layer battery cell module fixing structure further includes: a second bolt; a plurality of second bolts passing through the lower module end plate and fixed to the outer housing; and a second bolt being provided between every two adjacent first bolts.

[0010] In the aforementioned double-layer battery cell module fixing structure, the upper module end plate is provided with a plurality of first screw holes and a plurality of first rectangular through holes, with every two first rectangular through holes located on both sides of a first screw hole.

[0011] In the aforementioned double-layer battery cell module fixing structure, the upper end of the lower module end plate is provided with several mounting seats that protrude upwards. Each mounting seat is provided with a fixing hole, and a wire thread sleeve is installed inside each fixing hole.

[0012] In the aforementioned double-layer battery cell module fixing structure, the lower module end plate is further provided with a plurality of second rectangular through holes and a plurality of second screw holes. Each second rectangular through hole is located on both sides of a mounting base, and a second screw hole is provided between every two second rectangular through holes.

[0013] The aforementioned double-layer battery cell module fixing structure further includes: an intermediate support plate; the intermediate support plate is located between the upper battery cell assembly and the lower battery cell assembly, and a plurality of first bolts pass through the upper module end plate and the intermediate support plate in sequence, and are fixed to the lower module end plate.

[0014] In the aforementioned double-layer battery cell module fixing structure, the intermediate support plate is provided with a plurality of third screw holes, and a plurality of first bolts pass through the plurality of first screw holes and the plurality of third screw holes in sequence and are fixedly installed on the plurality of steel wire thread sleeves.

[0015] In the aforementioned dual-layer battery cell module fixing structure, the two upper module end plates are fixedly installed to the upper battery cell assembly by adhesive bonding; the two lower module end plates are fixedly installed to the lower battery cell assembly by adhesive bonding.

[0016] In the aforementioned double-layer battery cell module fixing structure, the two end plates of the upper battery cell assembly and the lower end plate extend outward with a first surrounding edge, which covers the upper module end plate; the two end plates of the lower battery cell assembly and the lower end plate extend outward with a second surrounding edge, which covers the lower module end plate.

[0017] A double-layer battery cell module, comprising the aforementioned double-layer battery cell module fixing structure.

[0018] The positive effects of the above technical solution compared with the existing technology are:

[0019] By applying this utility model, a double-layer battery cell module fixing structure and a double-layer battery cell module are provided. This device installs upper-layer module end plates at both ends of the upper-layer battery cell assembly and lower-layer module end plates at both ends of the lower-layer battery cell assembly. The first bolts install the upper-layer battery cell assembly and the lower-layer battery cell assembly together through the upper-layer module end plates and the lower-layer module end plates. The upper-layer module end plates and the lower-layer module end plates have simple structures, reduce the number of parts, reduce the module weight, and have low manufacturing costs, high strength, convenient installation, and easy transportation. Attached Figure Description

[0020] Fig. 1 This is a schematic diagram of a double-layer battery cell module fixing structure according to the present invention.

[0021] Fig. 2 This is a schematic diagram of the upper module end plate of this utility model.

[0022] Fig. 3 This is a schematic diagram of the lower module end plate of this utility model.

[0023] 1. Upper cell assembly; 2. Upper module end plate; 3. Middle support plate; 4. Lower cell assembly; 5. Lower module end plate; 6. First bolt; 7. Second bolt; 8. First screw hole; 9. First rectangular through hole; 10. Mounting base; 11. Fixing hole; 12. Wire thread insert; 13. Second screw hole; 14. Second rectangular through hole; 15. Third screw hole; 16. First surrounding edge; 17. Second surrounding edge. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0025] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0026] like Figs. 1 to 3 As shown, a preferred embodiment of a double-layer battery cell module fixing structure is illustrated, which includes: an upper battery cell assembly 1, an upper module end plate 2, a lower battery cell assembly 4, a lower module end plate 5, and a first bolt 6.

[0027] An upper module end plate 2 is installed at both ends of the upper cell assembly 1; a lower module end plate 5 is installed at both ends of the lower cell assembly 4; several first bolts 6 pass through the upper module end plate 2 and are fixed to the lower module end plate 5.

[0028] In actual use, two upper module end plates 2 are added to both ends of the upper cell assembly 1, and two lower module end plates 5 are added to both ends of the lower cell assembly 4. The two upper module end plates 2 and the two lower module end plates 5 are installed together by several first bolts 6, thereby installing the upper cell assembly 1 and the lower cell assembly 4 together.

[0029] Based on the above, this utility model also has the following embodiments:

[0030] Furthermore, a double-layer battery cell module fixing structure further includes: a plurality of second bolts 7; the plurality of second bolts 7 pass through the lower module end plate 5 and are fixed to the outer casing.

[0031] Furthermore, a double-layer battery cell module fixing structure is provided, wherein a second bolt 7 is provided between every two adjacent first bolts 6.

[0032] Specifically, under vibration and impact conditions of the dual-layer module, the upper cell assembly 1, under the action of the Z-axis vibration frequency, relies on the first bolt 6 to bear the tensile force along the axial direction of the first bolt 6; under the action of the X and Y-axis vibration frequencies, it relies on the shear resistance of the first bolt 6 along the diameter direction to bear the load. In this device, the upper cell assembly 1 and the lower cell assembly 4 are fastened on one side by five first bolts 6, and the lower cell assembly 4 is fastened to the external housing by four second bolts 7, effectively distributing the load in each direction. Furthermore, the number of first bolts 6 and second bolts 7 can be adjusted according to the module size, which can maximize the vibration and impact resistance of the dual-layer module.

[0033] Furthermore, a double-layer battery cell module fixing structure is provided, wherein each upper module end plate 2 is provided with a plurality of first screw holes 8 and a plurality of first rectangular through holes 9, with every two first rectangular through holes 9 located on both sides of a first screw hole 8. Specifically, the upper module end plate 2 is integrally extruded using an aluminum extrusion process, so that the upper module end plate 2 has a plurality of first rectangular through holes 9, thereby reducing its own weight while having the same strength as a solid upper module end plate 2.

[0034] Furthermore, a double-layer battery cell module fixing structure is provided, wherein the upper end of the lower module end plate 5 is provided with several mounting seats 10 protruding upwards, each mounting seat 10 having a fixing hole 11, and a wire threaded sleeve 12 is installed inside each fixing hole 11. Specifically, the mounting seats 10 can avoid the second bolt 7, and the installation of the upper battery cell assembly 1 and the lower battery cell assembly 4 is achieved through the first bolt 6 and the corresponding wire threaded sleeve 12, simplifying the installation structure of the upper battery cell assembly 1 and the lower battery cell assembly 4 and reducing manufacturing costs.

[0035] Furthermore, a double-layer battery cell module fixing structure is provided, wherein the lower module end plate 5 is provided with several second rectangular through holes 14 and several second screw holes 15. Each second rectangular through hole 14 is located on both sides of a mounting base 10, and a second screw hole 8 is provided between every two second rectangular through holes 14. Specifically, the second bolt 7 is installed in the second screw hole 8. The lower module end plate 5 is integrally extruded using an aluminum extrusion process, so that the lower module end plate 5 has several second rectangular through holes 14, which allows the lower module end plate 5 to reduce its own weight while having the same strength as a solid lower module end plate 5.

[0036] Furthermore, a double-layer battery cell module fixing structure further includes: an intermediate support plate 3; the intermediate support plate 3 is located between the upper battery cell assembly 1 and the lower battery cell assembly 4, and a plurality of first bolts 6 sequentially pass through the upper module end plate 2 and the intermediate support plate 3, and are fixed to the lower module end plate 5. Specifically, the intermediate support plate 3 is used to support the upper battery cell assembly 1, and can reduce the local stress on the connection surface between the upper battery cell assembly 1 and the lower battery cell assembly 4.

[0037] Furthermore, a double-layer battery cell module fixing structure is provided, wherein the middle support plate 3 is provided with a number of third screw holes 15, and a number of first bolts 6 pass through a number of first screw holes 8 and a number of third screw holes 15 in sequence and are fixedly installed on the wire thread sleeve 12.

[0038] Furthermore, a double-layer battery cell module fixing structure is provided, wherein two upper-layer module end plates 2 are fixedly installed on the upper-layer battery cell assembly 1 by adhesive bonding, and two lower-layer module end plates 5 are fixedly installed on the lower-layer battery cell assembly 4 by adhesive bonding.

[0039] Furthermore, a double-layer battery cell module fixing structure is provided, wherein the two end plates of the upper battery cell assembly 1 and the lower end plate extend outward and are provided with a first surrounding edge 16, which covers the upper module end plate 2. Specifically, the first surrounding edge 16 can further reinforce the installation of the upper module end plate 2.

[0040] Furthermore, in a double-layer battery cell module fixing structure, the two end plates of the lower battery cell assembly 4 and the lower end plate are provided with a second surrounding edge 17 extending outward, the second surrounding edge 17 covering the lower module end plate 5. Specifically, the installation of the lower module end plate 5 is further reinforced by the second surrounding edge 17.

[0041] A double-layer battery cell module, comprising the aforementioned double-layer battery cell module fixing structure.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-layer battery cell module fixing structure, characterized in that, include: Upper cell assembly, upper module end plate, lower cell assembly, lower module end plate, first bolt; one upper module end plate is installed at each end of the upper cell assembly; Each end of the lower-level cell assembly is equipped with a lower-level module end plate; Several of the first bolts pass through the upper module end plate and are fixed to the lower module end plate.

2. The double-layer cell module fixing structure according to claim 1, characterized in that, Also includes: Second bolts; several second bolts penetrate the lower module end plate and are fixed to the outer housing; a second bolt is provided between every two adjacent first bolts.

3. The double-layer cell module fixing structure according to claim 2, characterized in that, Each upper module end plate is provided with a number of first screw holes and a number of first rectangular through holes, with every two first rectangular through holes located on both sides of a first screw hole.

4. The double-layer cell module fixing structure according to claim 3, characterized in that, The upper end of the lower module end plate has several mounting seats that protrude upwards. Each mounting seat has a fixing hole, and a wire thread sleeve is installed inside each fixing hole.

5. The double-layer cell module fixing structure according to claim 4, characterized in that, The lower module end plate is also provided with a number of second rectangular through holes and a number of second screw holes. Each second rectangular through hole is located on both sides of a mounting base, and a second screw hole is provided between every two second rectangular through holes.

6. The double-layer cell module fixing structure according to claim 5, characterized in that, Also includes: Intermediate support plate; the intermediate support plate is located between the upper battery cell assembly and the lower battery cell assembly, and several first bolts pass through the upper module end plate and the intermediate support plate in sequence, and are fixed to the lower module end plate.

7. The double-layer cell module fixing structure according to claim 6, characterized in that, The intermediate support plate is provided with a number of third screw holes, and a number of first bolts pass through the number of first screw holes and the number of third screw holes in sequence and are fixedly installed on the number of wire thread sleeves.

8. The double-layer cell module fixing structure according to claim 1, characterized in that, The two upper module end plates are fixedly installed to the upper cell assembly by adhesive bonding; the two lower module end plates are fixedly installed to the lower cell assembly by adhesive bonding.

9. The double-layer cell module fixing structure according to claim 1, characterized in that, The upper cell assembly has two end plates and a lower end plate extending outwards with a first surrounding edge, which covers the upper module end plate; the lower cell assembly has two end plates and a lower end plate extending outwards with a second surrounding edge, which covers the lower module end plate.

10. A double-layer battery cell module, characterized in that, Includes a double-layer cell module fixing structure as described in any one of claims 1-9.

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