Safe mining battery module

Abstract

The utility model relates to the technical field of battery modules, in particular to a safe mining battery module which comprises a frame device, a plurality of groups of battery cells are fixedly placed in the frame device, and the frame device comprises a rectangular structure formed by connecting and combining two groups of side plate assemblies and two groups of end plate assemblies end to end at intervals. An upper cover assembly is buckled on the top of the rectangular structure, and a groove hole playing a pressure relief role is formed in the upper cover assembly in a penetrating mode, and the safe mining battery module overcomes the defects that in the prior art, underground assembly and transportation are not facilitated, and the battery cell protection effect is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of battery modules, in particular to a safe battery module for mining. Background Art

[0002] In order to meet the power demand underground and prevent power outages caused by cable failures during underground operations, mines are often equipped with battery modules to ensure power supply.

[0003] To ensure the safety of the battery cells, a protective structure is often installed on the periphery of the battery cells, such as the explosion-proof battery module equipment for mining proposed in Chinese patent application number "CN202122810710.9". However, the protective device has a complex structure, which is not conducive to underground assembly and transportation, and the device does not have a circuit-breaking protection effect when the battery cells encounter expansion deformation and overload faults;

[0004] Based on the above-mentioned shortcomings of the prior art, this case will propose a battery module that is easy to assemble and has a good protection effect on the battery cells. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art, such as being unfavorable for underground assembly and transportation and having poor protection effect on battery cells, and proposes a safe mining battery module.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A safe mining battery module is designed, including a frame device, wherein a plurality of battery cells are fixedly placed inside the frame device, the frame device comprises a rectangular structure composed of two groups of side plate assemblies and two groups of end plate assemblies connected end to end with intervals, an upper cover assembly is buckled on the top of the rectangular structure, and a slot hole for pressure relief is opened through the interior of the upper cover assembly.

[0008] Preferably, the side panel assembly includes a side panel insulating sheet and a side panel cover, the side panel insulating sheet is attached to the end surface of the side panel cover facing the battery cell, the side panel insulating sheet and the lower end of the side panel cover are respectively bent to form a third bending portion and a fifth bending portion, the upper end of the side panel cover is bent to form a fourth bending portion that cooperates with the upper cover assembly, and the left and right ends of the side panel cover are integrally formed with connecting portions that cooperate with the end plate assembly.

[0009] Preferably, the end plate assembly includes an end plate insulating sheet and an end plate cover, the end plate insulating sheet is attached to the end surface of the end plate cover facing the battery cell, the left and right ends of the end plate cover are bent to form a sixth bending portion that cooperates with the connecting portion, and the lower end of the end plate cover is bent to form a seventh bending portion.

[0010] Preferably, a plurality of sets of fixing columns are integrally formed on the outer end surface of the end plate cover, and an expansion frame is fixedly mounted on the lower end of the seventh bent portion by bolts.

[0011] Preferably, an epoxy plate is abutted between the end plate insulating sheet and the end plate cover.

[0012] Preferably, the upper cover assembly includes a blister upper cover and a blister bracket abutting against each other up and down, the left and right ends of the blister bracket are bent to form a first bending portion abutting against the fourth bending portion, the left and right ends of the blister upper cover are bent to form a second bending portion cooperating with the first bending portion and the fourth bending portion, a second placement groove is horizontally opened in the middle of the upper end surface of the blister bracket, the upper end surface of the blister bracket is located on the left and right sides of the second placement groove and has multiple groups of first placement grooves corresponding to the battery cells horizontally opened, an FPC device is placed in the second placement groove, a first aluminum row or a second aluminum row is placed in the first placement groove, and a bridge wire is electrically connected between the FPC device and the first aluminum row and the second aluminum row.

[0013] Preferably, a plurality of groups of first through holes and second through holes are respectively formed vertically through the interior of the blister bracket and the blister upper cover.

[0014] Preferably, a plurality of positioning holes for positioning are provided through the interior of the FPC device.

[0015] Preferably, a plurality of through slots are formed through the central axis of the first aluminum row.

[0016] Preferably, a protrusion that cooperates with the FPC device and the first aluminum row and the second aluminum row is integrally die-casted in the middle of the blister upper cover.

[0017] The utility model provides a safe mining battery module, which has the following beneficial effects:

[0018] The overall structure of the frame device can protect the multiple groups of battery cells inside it. The upper cover assembly is provided with slots for pressure relief to balance the pressure difference between the inside and outside of the frame device, thereby improving the safety of the environment in which the battery cells are located. Multiple groups of first aluminum bars, second aluminum bars and FPC devices are combined into an integral component to facilitate installation and subsequent maintenance. The multiple groups of through slots opened on the first aluminum bar enable it to have the functions of breaking and fusing, thereby providing an additional barrier without increasing the additional structural cost, thereby improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of the main body;

[0020] Figure 2 for Figure 1A schematic diagram of the enlarged structure of area A;

[0021] Figure 3 The schematic diagram of the explosion dismantling structure of the main body;

[0022] Figure 4 It is a schematic diagram of the main structure of the blister bracket;

[0023] Figure 5 It is a schematic diagram of the main structure of the FPC device, the first aluminum bar, and the second aluminum bar;

[0024] Figure 6 It is a schematic diagram of the main structure of the blister cover;

[0025] Figure 7 It is a schematic diagram of the main structure of the side plate insulation sheet;

[0026] Figure 8 It is a schematic diagram of the main structure of the side panel cover;

[0027] Fig. 9 Schematic diagram of the main structure of the end plate cover.

[0028] In the figure:

[0029] 1. Blister bracket; 101. first bending portion; 102. first placement groove; 103. second placement groove; 104. first through hole; 105. slot;

[0030] 2. FPC device; 201. positioning hole; 202. first aluminum row; 203. through slot; 204. bridge wire; 205. second aluminum row; 206. wiring terminal;

[0031] 3. Blister upper cover; 301. second bending portion; 302. second through hole; 303. raised portion;

[0032] 4. Side plate insulating sheet; 401. Third bending portion; 5. Side plate cover; 501. Fourth bending portion; 502. Fifth bending portion; 503. Connecting portion;

[0033] 6. End plate insulating sheet; 601. Epoxy plate; 7. End plate cover; 701. Sixth bending portion; 702. Seventh bending portion; 703. Extension portion; 704. Fixed column; 8. Extension frame;

[0034] 9. Battery cell; 10. Power line bracket; 1001. Coupling interface. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0036] Reference Figure 3 , here is an example of the implementation method of the subject:

[0037] A safe mining battery module comprises a frame device, wherein a plurality of battery cells 9 are fixedly placed inside the frame device, the frame device comprises a rectangular structure formed by two sets of side plate assemblies and two sets of end plate assemblies connected end to end at intervals, an upper cover assembly is buckled on the top of the rectangular structure, and a slot hole for pressure relief is opened inside the upper cover assembly;

[0038] Based on the above, the frame device provides peripheral and top protection for the battery cells 9 installed therein, preventing external problems from directly contacting the battery cells 9. The slots provided also balance the internal and external pressures of the frame device, further improving safety.

[0039] Reference Figure 7 , 8 , here is an example of an implementation of the side panel assembly:

[0040] The side plate assembly includes a side plate insulating sheet 4 and a side plate cover 5. The side plate insulating sheet 4 is attached to the inner end surface of the side plate cover 5 so that it can directly contact the battery cell 9 to achieve an insulating effect, that is, one end surface facing the battery cell 9. The lower ends of the side plate insulating sheet 4 and the side plate cover 5 are respectively bent to form a third bending portion 401 and a fifth bending portion 502 for supporting the bottom end surface of the battery cell 9. The upper end of the side plate cover 5 is bent to form a fourth bending portion 501 for buckling the upper cover assembly. The left and right ends of the side plate cover 5 are integrally formed with a connecting portion 503 for connecting the end plate assembly.

[0041] Based on the above content, the bending directions of the fourth bending portion 501 and the fifth bending portion 502 should be the same, so as to achieve the effect of upper and lower clamping, thereby improving the structural strength and facilitating the processing of parts.

[0042] Reference Figure 3 , 9 , here is an example of an implementation of the end plate assembly:

[0043] The end plate assembly includes an end plate insulating sheet 6 and an end plate cover 7. The end plate insulating sheet 6 is attached to the inner end surface of the end plate cover 7 so that it can directly contact the battery cell 9 to achieve an insulating effect, that is, the end surface of one side facing the battery cell 9. The left and right ends of the end plate cover 7 are bent to form a sixth bent portion 701 for fixedly connecting with the connecting portion 503 by bolts or the like. The lower end of the end plate cover 7 is bent to form a seventh bent portion 702 for fixing with the ground or an external structure.

[0044] Based on the above, the end plate cover 7 cooperates with the side plate cover 5 to form a protective frame for the periphery, and the frame is simple to install and easy to assemble on a large scale;

[0045] Furthermore, the outer end surface of the end plate cover 7 is integrally formed with a plurality of sets of fixing columns 704 for inserting bolts, handles and other components to facilitate fixing and carrying;

[0046] Furthermore, an epoxy plate 601 is abutted between the end plate insulating sheet 6 and the end plate cover 7 to achieve a thermal insulation effect;

[0047] Furthermore, an extension frame 8 is fixedly mounted on the lower end of the seventh bending portion 702 by bolts so as to be fixed to an external component.

[0048] Reference Figure 4-6 Here is an example of an implementation of the upper cover assembly:

[0049] The upper cover assembly includes a blister upper cover 3 and a blister bracket 1 that are abutted up and down. The left and right ends of the blister bracket 1 are bent to form a first bending portion 101 for abutting with the fourth bending portion 501 to achieve a fixing effect. A second placement groove 103 is horizontally opened in the middle of the upper end surface of the blister bracket 1. The upper end surface of the blister bracket 1 is located on the left and right sides of the second placement groove 103. Multiple groups of first placement grooves 102 corresponding to the battery cells 9 are horizontally opened. The inside of the second placement groove 103 is placed with an FPC device 2. The inside of the first placement groove 102 is placed with a first aluminum row 202 or a second aluminum row 205. A bridge line 204 is electrically connected between the FPC device 2 and the first aluminum row 202 and the second aluminum row 205; the left and right ends of the blister upper cover 3 are bent to form a second bending portion 301 for cooperating with the first bending portion 101 and the fourth bending portion 501 to achieve abutting and fixing effect;

[0050] Based on the above content, refer to Figure 5 The first aluminum row 202 is used for connecting the two groups of battery cells 9, and the second aluminum row 205 is used for connecting the end battery cells 9 with the external coupling structure, so the second aluminum row 205 should be placed at the end; the main function of the blister bracket 1 is to install the FPC device 2, the first aluminum row 202, the second aluminum row 205, and to achieve electrical isolation, so this part should be made of insulating flame-retardant materials;

[0051] Furthermore, the upper end of the end plate cover 7 is bent to form an extension portion 703, and the outer side of the extension portion 703 is fixedly installed with a power line bracket 10 and a coupling interface 1001 electrically connected to the FPC device 2 or the second aluminum bar 205 by bolts or the like;

[0052] Furthermore, one end of the second aluminum bar 205 is integrally formed with a wiring terminal 206 so as to be connected to the coupling interface 1001 by bolts or the like, and one side of the second placement slot 103 is provided with a slot 105 that cooperates with the power line bracket 10;

[0053] Furthermore, the inside of the blister bracket 1 and the blister upper cover 3 are respectively provided with a plurality of groups of first through holes 104 and second through holes 302 through the upper and lower parts thereof for pressure relief;

[0054] Furthermore, a plurality of positioning holes 201 for positioning are provided in the interior of the FPC device 2;

[0055] Furthermore, the central axis of the first aluminum bar 202 is penetrated by a plurality of through grooves 203, so that the area of ​​the connection is reduced, and it is easier to be pulled off or melted. The left and right ends of the first aluminum bar 202 are respectively connected to the electrodes of the two groups of battery cells 9. When the battery cells 9 fail and deform, the tensile strength of the middle part of the first aluminum bar 202 is reduced, so it is easier to be pulled off to achieve a protective effect. When a large current passes through the first aluminum bar 202, the cross-sectional area of ​​the middle part of the first aluminum bar 202 is reduced, so the current it can withstand is limited. When the current it can carry passes through, it will melt to achieve an overload protection effect.

[0056] Furthermore, a protrusion 303 that cooperates with the FPC device 2 and the first aluminum row 202 and the second aluminum row 205 is integrally die-casted in the middle of the blister upper cover 3 .

[0057] Based on the above-mentioned embodiments, when assembling:

[0058] Place the blister bracket 1 on the upper end of the multiple groups of battery cells 9 and align the output electrodes of the battery cells 9 with the first placement groove 102, place the first aluminum bar 202 or the second aluminum bar 205 in the first placement groove 102 as required, and fix it to the output electrodes of the battery cells 9 by bolts or the like, place the FPC device 2 inside the second placement groove 103 and electrically connect the first aluminum bar 202 and the second aluminum bar 205 to the FPC device 2 through the bridge wire 204, at this time, the blister bracket 1 will be in a fixed connection state with the multiple groups of battery cells 9, and then the blister upper cover 3 can be covered;

[0059] Place two sets of side panel assemblies on the front and rear sides of the multiple sets of battery cells 9, and fix two sets of end panel assemblies on the left and right sides of the two sets of side panel assemblies by bolts. When installing the side panel assemblies, the first bending portion 101 and the second bending portion 301 should be placed at the lower end of the fourth bending portion 501. Figure 2 , so that the upper cover assembly can be fixed under the action of the fifth bending portion 502, the battery cell 9, and the fourth bending portion 501, and finally the power line bracket 10, the coupling interface 1001 and the end plate cover 7 are fixedly installed and electrically connected to the second aluminum row 205 and the FPC device 2 to complete the assembly.

[0060] Based on the above implementation examples, when used:

[0061] The frame device protects and fixes the battery cells 9 inside it, reducing external damage to the battery cells 9. At the same time, the main structure of the frame device is simple and light, and easy to assemble; the through groove 203 opened by the first aluminum row 202 can play the role of deformation breaking protection and overload fuse protection when in use, thereby improving the safety of use; the hollow structure at the bottom of the frame device enables it to have better heat dissipation and avoid heat accumulation.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safe mining battery module, including a frame device, characterized in that: A plurality of groups of battery cells (9) are fixedly placed inside the frame device, and the frame device comprises a rectangular structure formed by two groups of side plate assemblies and two groups of end plate assemblies connected end to end with an interval, an upper cover assembly is buckled on the top of the rectangular structure, and a slot hole for pressure relief is opened through the interior of the upper cover assembly.

2. A safe mining battery module according to claim 1, characterized in that: The side panel assembly comprises a side panel insulating sheet (4) and a side panel cover (5); the side panel insulating sheet (4) is attached to the end face of the side panel cover (5) facing the battery cell (9); the lower ends of the side panel insulating sheet (4) and the side panel cover (5) are respectively bent to form a third bending portion (401) and a fifth bending portion (502); the upper end of the side panel cover (5) is bent to form a fourth bending portion (501) that cooperates with the upper cover assembly; and the left and right ends of the side panel cover (5) are integrally formed with a connecting portion (503) that cooperates with the end panel assembly.

3. A safe mining battery module according to claim 2, characterized in that: The end plate assembly comprises an end plate insulating sheet (6) and an end plate cover (7), wherein the end plate insulating sheet (6) is attached to an end surface of the end plate cover (7) facing the battery cell (9), and both left and right ends of the end plate cover (7) are bent to form a sixth bending portion (701) that cooperates with the connecting portion (503), and the lower end of the end plate cover (7) is bent to form a seventh bending portion (702).

4. A safe mining battery module according to claim 3, characterized in that: The outer end surface of the end plate cover (7) is integrally formed with a plurality of sets of fixing columns (704), and the lower end of the seventh bent portion (702) is fixedly mounted with an expansion frame (8) by means of bolts.

5. A safe mining battery module according to claim 3, characterized in that: An epoxy plate (601) is in contact between the end plate insulating sheet (6) and the end plate cover (7).

6. A safe mining battery module according to claim 2, characterized in that: The upper cover assembly comprises a blister upper cover (3) and a blister bracket (1) abutting against each other up and down; both left and right ends of the blister bracket (1) are bent to form a first bending portion (101) abutting against the fourth bending portion (501); both left and right ends of the blister upper cover (3) are bent to form a second bending portion (301) cooperating with the first bending portion (101) and the fourth bending portion (501); a second placement groove (103) is horizontally opened in the middle of the upper end surface of the blister bracket (1); The upper end surface of the bracket (1) is located on both left and right sides of the second placement groove (103), and a plurality of first placement grooves (102) corresponding to the battery cells (9) are horizontally opened. An FPC device (2) is placed inside the second placement groove (103), and a first aluminum bar (202) or a second aluminum bar (205) is placed inside the first placement groove (102). A bridge wire (204) is electrically connected between the FPC device (2) and the first aluminum bar (202) or the second aluminum bar (205).

7. A safe mining battery module according to claim 6, characterized in that: The interior of the blister support (1) and the blister upper cover (3) are respectively provided with a plurality of groups of first through holes (104) and second through holes (302) penetrating upward and downward.

8. A safe mining battery module according to claim 6, characterized in that: The FPC device (2) has multiple groups of positioning holes (201) extending through the interior thereof for positioning.

9. A safe mining battery module according to claim 6, characterized in that: The central axis of the first aluminum row (202) is penetrated by a plurality of through slots (203).

10. A safe mining battery module according to claim 6, characterized in that: The middle part of the blister upper cover (3) is integrally die-casted with a protrusion (303) that cooperates with the FPC device (2) and the first aluminum row (202) and the second aluminum row (205).

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