Lithium battery with explosion-proof mechanism

Abstract

The utility model provides a lithium battery with an explosion-proof mechanism. The lithium battery with the anti-explosion mechanism comprises an anti-explosion shell, a first partition plate is fixedly installed in the anti-explosion shell, the space in the anti-explosion shell is divided into an installation cavity and a wiring cavity through the first partition plate, three second partition plates are fixedly installed in the installation cavity, and the installation cavity is divided into four battery cavities through the three second partition plates; four groups of connecting assemblies I are arranged on the partition plate I, and the four battery cavities are communicated with the wiring cavity through the four groups of connecting assemblies I. The lithium battery with the explosion-proof mechanism has the advantages that the existence of ignition sources can be reduced through space division, the electrical clearance and the creepage distance can be increased through the terminal and the stuffing box, the insulation performance between connections can be improved, the arc spark phenomenon can be avoided, and the safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium batteries, and in particular relates to a lithium battery with an explosion-proof mechanism. Background Art

[0002] Lithium batteries are widely used in energy storage power systems such as hydropower, thermal, wind and solar power stations, uninterruptible power supplies for postal and telecommunications, as well as power tools, electric bicycles, electric motorcycles, electric vehicles, military equipment, aerospace and other fields. They are indispensable and important in human life.

[0003] After searching, in the related art, the patent document with the authorization publication number CN 214254610 U discloses a lithium battery with an explosion-proof structure, including an explosion-proof bottom box and an explosion-proof top box, the right side of the explosion-proof bottom box is provided with a lifting slot, and the bottom of the lifting slot is provided with a slider, the upper part of the slider is provided with a lifting rod, and the outer side of the lifting rod is provided with a spring, the outer side of the spring is provided with an explosion-proof top box, and the inner wall of the explosion-proof top box is provided with an explosion-proof membrane, the right side of the explosion-proof membrane is provided with a battery reactor, and the upper part of the battery reactor is provided with a positive electrode, and the right side of the positive electrode is provided with a negative electrode, and the upper part of the negative electrode is provided with a bolt, and the bottom of the bolt is fixed with a fixed block, and the bottom of the fixed block is connected with a movable rod, and the outer side of the movable rod is provided with a slide slot. The lithium battery with an explosion-proof structure consumes the energy generated by the explosion of the lithium battery, reduces the harm to human life, and connects the lithium battery by clips to increase the practicality of the lithium battery.

[0004] Regarding the above-mentioned related technologies, the utility model applicant believes that there are the following defects:

[0005] 1. Although the above technology has an explosion-proof lithium battery, it consumes the energy generated by the explosion of the lithium battery to reduce the harm to human life, and connects the lithium battery by clips to increase the practicality of the lithium battery. However, this technology places the lithium batteries together, thereby increasing the presence of ignition sources. Moreover, because they are placed together, the electrical clearance and creepage distance of the wire connections are short, which makes it easy for arc sparks to occur, increasing the danger.

[0006] Therefore, it is necessary to provide a new lithium battery containing an explosion-proof mechanism to solve the above technical problems. Utility Model Content

[0007] The technical problem solved by the utility model is to provide a lithium battery with an explosion-proof mechanism which can reduce the existence of ignition sources by dividing the space, increase the electrical clearance and creepage distance by terminals and stuffing boxes, and improve the insulation performance between connections, thereby avoiding the occurrence of arc sparks and improving safety.

[0008] In order to solve the above technical problems, the utility model provides a lithium battery with an explosion-proof mechanism, comprising: an explosion-proof housing, a partition plate 1 is fixedly installed in the explosion-proof housing, and the space in the explosion-proof housing is divided into an installation cavity and a wiring cavity by the partition plate 1, and three partition plates 2 are fixedly installed in the installation cavity, and the installation cavity is divided into four battery cavities by the three partition plates 2;

[0009] The partition plate is provided with four sets of connection components, and the four battery chambers and the wiring chamber are connected through the four sets of connection components for connecting power lines and signal lines. Each set of connection components includes an explosion-proof wall-penetrating terminal and a cast-in terminal sleeve.

[0010] Four groups of connection components 2 are arranged on the four partition plates 2, and the four battery cavities are connected through the four groups of connection components 2 for connecting power lines and signal lines. Each group of connection components 2 includes two explosion-proof wall-penetrating terminals and two cast-in terminal sleeves.

[0011] As a further solution of the utility model, the explosion-proof housing is provided with a plurality of explosion-proof cable stuffing boxes, which extend into the installation cavity and the wiring cavity respectively, and the explosion-proof cable stuffing boxes are used to connect with cables and wires of other boxes.

[0012] As a further solution of the utility model, the explosion-proof shell is welded from Q345C, the material of the explosion-proof shell is the same as that of the partition plate 1 and the partition plate 2, and four connecting rods are fixedly installed on the top of the explosion-proof shell.

[0013] As a further solution of the utility model, a riot-proof shell cover is provided on the top of the explosion-proof shell. The riot-proof shell cover is made of the same material as the explosion-proof shell. Four through holes are opened on the riot-proof shell cover. The four through holes are matched with four connecting rods. The explosion-proof shell, connecting rods and riot-proof shell cover are fixed by bolts.

[0014] As a further solution of the utility model, a pressure relief isolation grid is provided in the explosion-proof housing, the pressure relief isolation grid is connected to the explosion-proof housing cover, and a polyethylene film is provided between the pressure relief isolation grid and the explosion-proof housing cover.

[0015] As a further solution of the present invention, the pressure relief isolation grid is made of stainless steel, and includes multi-layer laminate one, multi-layer laminate two and a frame, the frame is a steel mesh frame, and the multi-layer laminate one and multi-layer laminate two are pressed and installed on the top and bottom of the frame.

[0016] Compared with the related art, the lithium battery with explosion-proof mechanism provided by the utility model has the following beneficial effects:

[0017] 1. The utility model can reduce the existence of ignition sources by dividing the space;

[0018] 2. The utility model can not only increase the electrical clearance and creepage distance, but also improve the insulation performance between the connections by arranging a first explosion-proof wall-penetrating terminal, a first encapsulated terminal sleeve, a second explosion-proof wall-penetrating terminal, a second encapsulated terminal sleeve and a explosion-proof cable stuffing box, thereby avoiding arc sparks and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the structure of the explosion-proof housing in the utility model;

[0021] Figure 2 It is a schematic diagram of the explosion-proof shell cover in the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the explosion-proof shell cover in the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the pressure relief isolation grid in the utility model.

[0024] In the figure: 1. explosion-proof shell; 2. partition plate 1; 3. partition plate 2; 4. explosion-proof wall terminal 1; 41. encapsulated terminal sleeve 1; 5. explosion-proof wall terminal 2; 51. encapsulated terminal sleeve 2; 6. explosion-proof cable stuffing box; 7. connecting rod; 8. explosion-proof shell cover; 9. through hole; 10. pressure relief isolation grid; 101. multi-layer laminate 1; 102. multi-layer laminate 2; 103. skeleton. DETAILED DESCRIPTION

[0025] Please refer to Figures 1 to 4 ,in, Figure 1 It is a schematic diagram of the structure of the explosion-proof housing in the utility model; Figure 2 It is a schematic diagram of the explosion-proof shell cover in the utility model; Figure 3 It is a three-dimensional schematic diagram of the explosion-proof shell cover in the utility model; Figure 4 The schematic diagram of the structure of the pressure relief isolation grid in the utility model. The lithium battery with explosion-proof mechanism comprises: an explosion-proof shell 1, a partition plate 2 is fixedly installed in the explosion-proof shell 1, the space in the explosion-proof shell 1 is divided into an installation cavity and a wiring cavity by the partition plate 2, three partition plates 2 3 are fixedly installed in the installation cavity, and the installation cavity is divided into four battery cavities by the three partition plates 2 3;

[0026] The partition plate 2 is provided with four groups of connection components 1, and the four battery chambers and the wiring chamber are connected through the four groups of connection components 1, which are used to connect the power line and the signal line. Each group of connection components 1 includes an explosion-proof wall-penetrating terminal 1 4 and a cast terminal sleeve 1 41;

[0027] Four groups of connection components 2 are provided on the four partition plates 2 3 , and the four battery cavities are connected through the four groups of connection components 2 for connecting power lines and signal lines. Each group of connection components 2 includes an explosion-proof wall-penetrating terminal 2 5 and a cast-in terminal sleeve 2 51 .

[0028] When installing lithium batteries, they need to be installed in the battery cavity through a special template. By dividing the installation of lithium batteries into four spaces, the presence of ignition sources can be reduced, the risks caused by installation and disassembly during use and maintenance can be reduced, and the safety factor of long-term use of the power supply can be improved.

[0029] The explosion-proof housing 1 is provided with a plurality of explosion-proof cable stuffing boxes 6, which extend into the installation cavity and the wiring cavity respectively. The explosion-proof cable stuffing boxes 6 are used to connect with cables and wires of other boxes.

[0030] Through the explosion-proof wall-penetrating terminal 1 4, the encapsulated terminal sleeve 1 41, the explosion-proof wall-penetrating terminal 2 5, the encapsulated terminal sleeve 2 51 and the explosion-proof cable stuffing box 6, not only the electrical clearance and creepage distance can be increased, but also the insulation performance between the connections can be improved, thereby avoiding the occurrence of arc sparks and improving safety.

[0031] The explosion-proof housing 1 is welded from Q345C. The explosion-proof housing 1 is made of the same material as the partition plate 1 2 and the partition plate 2 3 . Four connecting rods 7 are fixedly installed on the top of the explosion-proof housing 1 .

[0032] A riot-proof shell cover 8 is provided on the top of the explosion-proof shell 1. The riot-proof shell cover 8 is made of the same material as the explosion-proof shell 1. Four through holes 9 are provided on the riot-proof shell cover 8. The four through holes 9 are matched with four connecting rods 7. The explosion-proof shell 1, the connecting rods 7 and the riot-proof shell cover 8 are fixed by bolts.

[0033] A pressure relief isolation grid 10 is provided in the explosion-proof housing 1 , and the pressure relief isolation grid 10 is connected to the explosion-proof housing cover 8 , and a polyethylene film is provided between the pressure relief isolation grid 10 and the explosion-proof housing cover 8 .

[0034] The pressure relief isolation grid 10 is made of stainless steel and includes a multi-layer laminate 1 101 , a multi-layer laminate 2 102 and a frame 103 . The frame 103 is a steel mesh frame. The multi-layer laminate 1 101 and the multi-layer laminate 2 102 are pressed and installed on the top and bottom of the frame 103 .

[0035] The pressure relief isolation grid 10 can enhance the pressure resistance of the explosion-proof housing 1 and the explosion-proof housing cover 8, thereby improving the explosion-proof performance.

[0036] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0037] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0038] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A lithium battery with an explosion-proof mechanism, characterized in that: include: An explosion-proof housing, wherein a partition plate 1 is fixedly installed in the explosion-proof housing, and the space in the explosion-proof housing is divided into an installation cavity and a wiring cavity by the partition plate 1, and three partition plates 2 are fixedly installed in the installation cavity, and the installation cavity is divided into four battery cavities by the three partition plates 2; The partition plate is provided with four sets of connection components, and the four battery chambers and the wiring chamber are connected through the four sets of connection components for connecting power lines and signal lines. Each set of connection components includes an explosion-proof wall-penetrating terminal and a cast-in terminal sleeve. Four groups of connection components 2 are arranged on the four partition plates 2, and the four battery cavities are connected through the four groups of connection components 2 for connecting power lines and signal lines. Each group of connection components 2 includes two explosion-proof wall-penetrating terminals and two cast-in terminal sleeves.

2. The lithium battery with explosion-proof mechanism according to claim 1, characterized in that: The explosion-proof housing is provided with a plurality of explosion-proof cable stuffing boxes, which extend into the installation cavity and the wiring cavity respectively. The explosion-proof cable stuffing boxes are used to connect with cables and wires of other boxes.

3. The lithium battery with explosion-proof mechanism according to claim 1, characterized in that: The explosion-proof housing is welded from Q345C, and the material of the explosion-proof housing is the same as that of the first partition plate and the second partition plate. Four connecting rods are fixedly installed on the top of the explosion-proof housing.

4. The lithium battery with explosion-proof mechanism according to claim 3, characterized in that: A riot-proof shell cover is provided on the top of the explosion-proof shell. The riot-proof shell cover is made of the same material as the explosion-proof shell. Four through holes are provided on the riot-proof shell cover. The four through holes are matched with four connecting rods. The explosion-proof shell, the connecting rods and the riot-proof shell cover are fixed by bolt connection.

5. The lithium battery with explosion-proof mechanism according to claim 1, characterized in that: A pressure relief isolation grid is arranged in the explosion-proof housing, the pressure relief isolation grid is connected to the explosion-proof housing cover, and a polyethylene film is arranged between the pressure relief isolation grid and the explosion-proof housing cover.

6. The lithium battery with explosion-proof mechanism according to claim 5, characterized in that: The pressure relief isolation grid is made of stainless steel and includes a multi-layer laminate 1, a multi-layer laminate 2 and a frame. The frame is a steel mesh frame. The multi-layer laminate 1 and the multi-layer laminate 2 are pressed and installed on the top and bottom of the frame.

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