Battery shell with good protection performance

Abstract

The utility model discloses a battery case with good protection performance, which relates to the technical field of battery cases, and comprises a main case, a middle case, an isolation case, a mounting plate, an upper end cover and a lower end cover, the upper end cover is fixedly mounted at the upper end of the main case, the middle case is fixedly mounted at the lower end of the main case, one end of the mounting plate is inserted into the outer side of the case, and the other end of the mounting plate is inserted into the isolation case. And the other end of the mounting plate and the isolation shell are fixedly mounted. By adopting the structure, the middle shell with the isolation shell is mounted at the lower end of the main shell, and the upper end cover is mounted at the upper end of the main shell, so that the part from the upper end cover to the middle shell of the main shell is used for mounting the battery part, and the isolation shell at the lower end of the middle shell is used for mounting the control part of the battery; in this way, the battery control part can be better protected, and the charging connector can be protected against water and dust when charging is not carried out by additionally arranging the protective cover at the charging connector of the middle shell.

Description

Technical Field

[0001] This utility model belongs to the field of battery casing technology, and specifically relates to a battery casing with good protective performance. Background Technology

[0002] Electric-assist bicycles, a perfect combination of modern technology and green travel, are gradually becoming a new favorite for urban commuting and leisure fitness. These bicycles are equipped with an advanced electric assist system that intelligently adjusts the motor output according to the rider's pedaling force, effectively reducing the burden of riding. Whether on steep mountain roads or long city streets, riding becomes easy and comfortable. They not only retain the flexibility and freedom of traditional bicycles but also achieve low-carbon travel through environmentally friendly electric drive, reducing the burden on the environment. To provide power to electric-assist bicycles, a battery casing is usually installed to house the battery.

[0003] Currently, the battery casing of electric-assist bicycles mainly consists of the battery pack and the BMS (Battery Management System). Traditional battery casings are all one-piece structures, which means that the battery pack and the BMS are installed in the same space. This means that if the battery has a safety problem, such as battery leakage, fire, or electrical leakage, the other part will also be affected. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a battery casing with good protective performance to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A battery casing with good protective performance includes: a main casing, a middle casing, an isolation casing, a mounting plate, an upper cover, and a lower cover. The upper cover is fixedly installed on the upper end of the main casing, and the middle casing is fixedly installed on the lower end of the main casing. One end of the mounting plate is inserted into the outside of the casing, and the other end of the mounting plate is fixedly installed with the isolation casing. A socket is fixedly connected to the lower end of the middle casing, and a wire hole is provided on the inner side of the socket. The lower end of the middle casing is fixedly installed with the upper end of the isolation casing. The lower cover is fixedly installed on the lower end of the isolation casing. A charging connector is provided on the outer side of the middle casing, and a protective cover is provided on the outer side of the charging connector. A fixing hole is provided on the upper end of the upper cover.

[0007] As a preferred technical solution, a positioning sleeve is fixedly connected to the side of the mounting plate facing the main housing, and a connecting hole is fixedly connected to the side of the isolation housing facing the mounting plate. The end of the positioning sleeve away from the mounting plate is inserted into the connecting hole, and the mounting plate is fixedly installed by screws passing through the positioning sleeve and the connecting hole.

[0008] As a preferred technical scheme, the lower end of the isolation shell is provided with a positioning groove, the lower end cover is fixedly installed inside the positioning groove, and the intermediate shell is connected with the inside of the isolation shell through the threading hole.

[0009] As a preferred technical scheme, the outside of the intermediate shell is provided with an assembly groove, the protective cover is arranged inside the assembly groove, the protective cover and the charging connector are movably connected, the inside of the charging connector is symmetrically provided with an assembly hole, the charging connector is fixedly installed through the assembly hole and the assembly groove by means of a screw, and the end of the charging connector away from the protective cover penetrates the inner wall of the intermediate shell.

[0010] As a preferred technical scheme, the outside of the main shell is symmetrically provided with a limiting groove, the end of the mounting plate away from the isolation shell is inserted into the limiting groove, the lower end of the upper end cover is fixedly connected with an insertion block, the side of the insertion block towards the main shell is provided with an insertion groove, and the insertion block is inserted into the upper end of the mounting plate through the insertion groove.

[0011] As a preferred technical scheme, the upper end of the upper end cover is provided with a second countersunk hole, and the upper end cover is fixedly installed through the second countersunk hole and the upper end of the main shell by means of a screw.

[0012] As a preferred technical scheme, the outside of the upper end cover is provided with a buckling groove, the outside of the upper end cover is symmetrically provided with a matching groove, the matching groove is arranged inside the fixing hole, and a plug cover is inserted into the inside of the matching groove.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] By installing the intermediate shell with the isolation shell at the lower end of the main shell and installing the upper end cover at the upper end of the main shell, the upper end cover of the main shell to the intermediate shell part is used for installing the battery part, and the isolation shell at the lower end of the intermediate shell is used for installing the control part of the battery, so that the control part of the battery can be better protected, and by increasing the protective cover at the charging connector of the intermediate shell, the charging connector can be protected from water and dust when not charging. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the utility model;

[0016] Figure 2 is an exploded view of the utility model;

[0017] Figure 3 is a structural schematic diagram of the intermediate shell charging connector part of the utility model;

[0018] Figure 4 is the installation plate structure schematic diagram of the utility model;

[0019] Figure 5 is the exploded view of the upper end cover of the utility model.

[0020] Reference Signs: 1, main shell; 2, intermediate shell; 3, isolation shell; 4, mounting plate; 5, upper end cover; 6, buckle groove; 7, lower end cover; 8, positioning groove; 9, socket; 10, threading hole; 11, connecting hole; 12, first countersunk hole; 13, limiting groove; 14, charging connector; 15, protective cover; 16, assembly groove; 17, assembly hole; 18, positioning sleeve; 19, insertion slot; 20, insertion block; 21, second countersunk hole; 22, fixing hole; 23, matching groove; 24, plug cover. DETAILED DESCRIPTION

[0021] Reference Figures 1 to 5 , the battery shell with good protection performance described in the embodiment, including: main shell 1, intermediate shell 2, isolation shell 3, mounting plate 4, upper end cover 5 and lower end cover 7, upper end cover 5 is fixedly installed on the upper end of main shell 1, intermediate shell 2 is fixedly installed on the lower end of main shell 1, one end of mounting plate 4 is inserted into the outer side of the column shell, the other end of mounting plate 4 and isolation shell 3 are fixedly installed, the lower end of intermediate shell 2 is fixedly connected with socket 9, the inner side of socket 9 is provided with threading hole 10, the lower end of intermediate shell 2 and the upper end of isolation shell 3 are fixedly installed, lower end cover 7 is fixedly installed on the lower end of isolation shell 3, the outer side of intermediate shell 2 is provided with charging connector 14, the outer side of charging connector 14 is provided with protective cover 15, the upper end of upper end cover 5 is provided with fixing hole 22, by installing intermediate shell 2 with isolation shell 3 on the lower end of main shell 1, installing upper end cover 5 on the upper end, the upper end cover 5 of main shell 1 to the part of intermediate shell 2 is used for installing battery part, and the isolation shell 3 at the lower end of intermediate shell 2 is used for installing the control part of battery, so that the control part of battery can be better protected, by increasing protective cover 15 at charging connector 14 of intermediate shell 2, charging connector 14 can be waterproof and dustproof protected when not charging; main shell 1, intermediate shell 2 and isolation shell 3 are all made of aluminum alloy material, so that the battery shell has certain heat dissipation and corrosion resistance strength, long service life and strong practicality.

[0022] Reference Figure 2 and Figure 4The side of the mounting plate 4 facing the main shell 1 is fixedly connected with a positioning sleeve 18, the side of the isolation shell 3 facing the mounting plate 4 is fixedly connected with a connecting hole 11, the end of the positioning sleeve 18 away from the mounting plate 4 is inserted into the connecting hole 11, and the mounting plate 4 is fixedly installed by penetrating the positioning sleeve 18 and the connecting hole 11. When the mounting plate 4 is installed, one end of the mounting plate 4 is inserted into the main shell 1 with the upper end cover 5, then the positioning sleeve 18 of the mounting plate 4 is positioned and inserted into the connecting hole 11 at the part of the isolation shell 3 of the lower end of the intermediate shell 2, and is fixed by screws, so that the mounting plate 4 can be conveniently connected and installed for use.

[0023] With reference to Figure 2 The lower end of the isolation shell 3 is provided with a positioning groove 8, and the lower end cover 7 is fixedly installed on the inner side of the positioning groove 8. The intermediate shell 2 is connected with the inside of the isolation shell 3 through the threading hole 10. The lower end cover 7 of the isolation shell 3 can be conveniently positioned and installed through the positioning groove 8 at the lower end of the isolation shell 3.

[0024] With reference to Figure 2 And Figure 3 The outer side of the intermediate shell 2 is provided with an assembly groove 16, and the protective cover 15 is arranged on the inner side of the assembly groove 16. The protective cover 15 and the charging connector 14 are movably connected. The inner side of the charging connector 14 is symmetrically provided with an assembly hole 17. The charging connector 14 is fixedly installed by penetrating the assembly hole 17 and the assembly groove 16 through screws. The end of the charging connector 14 away from the protective cover 15 penetrates the inner wall of the intermediate shell 2. The side of the intermediate shell 2 facing the isolation shell 3 is provided with a first countersunk hole 12. The intermediate shell 2 is fixedly installed by penetrating the first countersunk hole 12 and the lower end of the main shell 1 through screws. The charging connector 14 and the protective cover 15 with the assembly hole 17 can be conveniently positioned and installed by providing the assembly groove 16 on the outer side of the intermediate shell 2. The intermediate shell 2 can be conveniently fixed on the lower end of the main shell 1 through the first countersunk hole 12 on the intermediate shell 2.

[0025] With reference to Figure 2 The outer side of the main shell 1 is symmetrically provided with a limiting groove 13. The end of the mounting plate 4 away from the isolation shell 3 is inserted into the limiting groove 13. The lower end of the upper end cover 5 is fixedly connected with an insertion block 20. The side of the insertion block 20 facing the main shell 1 is provided with an insertion groove 19. The insertion block 20 is inserted into the upper end of the mounting plate 4 through the insertion groove 19. The mounting plate 4 can be conveniently inserted and limited on the main shell 1 through the limiting groove 13 on the outer side of the main shell 1. The insertion block 20 with the insertion groove 19 on the upper end cover 5 can limit one end of the mounting plate 4 inserted into the main shell 1 after the upper end cover 5 is fixed by using the insertion groove 19 part of the insertion block 20.

[0026] With reference to Figure 5The upper end cover 5 is provided with a second countersunk hole 21 at the upper end, and the upper end cover 5 is fixedly installed through the second countersunk hole 21 and the upper end of the main shell 1. Through the second countersunk hole 21 on the upper end cover 5, the upper end cover 5 can be conveniently installed on the main shell 1.

[0027] Reference Figure 1 The outer side of the upper end cover 5 is provided with a buckle groove 6, and the outer side of the upper end cover 5 is symmetrically provided with a matching groove 23. The fixing hole 22 is provided with the inner side of the matching groove 23, and the inner side of the matching groove 23 is inserted with a plug cover 24. Through the buckle groove 6 on the upper end cover 5, the battery shell can be conveniently carried. Through the fixing hole 22 on the upper end cover 5, the battery in the main shell 1 can be further fixed after the upper end cover 5 is fixed on the main shell 1.

[0028] Principle and advantages: when assembling, first connect the middle shell 2 and the lower end of the main shell 1, then connect one end of the isolation shell 3 and the mounting plate 4, then insert the other end of the mounting plate 4 into the main shell 1, and connect and fix the isolation shell 3 and the middle shell 2, finally connect the battery control part in the isolation shell 3 with the battery circuit part in the main shell 1, install the lower end cover 7 at the lower end of the isolation shell 3, and fix the upper end cover 5 at the upper end of the main shell 1.

[0029] During use, the mounting plate 4 on the outer side of the main shell 1 can be used to conveniently install and use the battery shell, the part of the main shell 1 with the middle shell 2 and the upper end cover 5 can be used to store the battery part alone, and the part of the isolation shell 3 between the middle part and the lower end cover 7 can be used to install the control part of the battery, so that the equipment of the battery management part is better protected during use.

Claims

1. A battery case having a high protection performance, characterized by , comprising: The outer side of the intermediate shell (2) is provided with an assembly groove (16), the protective cover (15) is arranged in the assembly groove (16), the protective cover (15) and the charging connector (14) are movably connected, the inner side of the charging connector (14) is symmetrically provided with an assembly hole (17), the charging connector (14) is fixedly installed by penetrating the assembly hole (17) and the assembly groove (16) through the screw, one end of the charging connector (14) away from the protective cover (15) penetrates the inner wall of the intermediate shell (2), the side of the intermediate shell (2) facing the isolation shell (3) is provided with a first countersunk hole (12), and the intermediate shell (2) is fixedly installed by penetrating the first countersunk hole (12) and the lower end of the main shell (1) through the screw.

2. The battery case with improved safety according to claim 1, wherein: The outer side of the main shell (1) is symmetrically provided with a limiting groove (13), one end of the mounting plate (4) away from the isolation shell (3) is inserted into the limiting groove (13), the lower end of the upper end cover (5) is fixedly connected with a plug block (20), the side of the plug block (20) facing the main shell (1) is provided with a plug groove (19), and the plug block (20) is inserted into the upper end of the mounting plate (4) through the plug groove (19).

3. The battery case with improved safety according to claim 1, wherein: The upper end of the upper end cover (5) is provided with a second countersunk hole (21), and the upper end cover (5) is fixedly installed by penetrating the second countersunk hole (21) and the upper end of the main shell (1) through the screw.

4. The battery case with improved safety according to claim 1, wherein: ​ 5. The battery case with improved safety according to claim 1, wherein: ​ 6. The battery case with improved safety according to claim 1, wherein: ​ 7. The battery case with improved safety according to claim 1, wherein: The outer side of the upper end cover (5) is provided with a buckle groove (6), and the outer side of the upper end cover (5) is symmetrically provided with a matching groove (23), and the fixing hole (22) is provided with the inner side of the matching groove (23), and the inner side of the matching groove (23) is inserted with a plug cover (24).

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