Power box

Abstract

The utility model relates to the technical field of mining batteries, and discloses a power box. The power box comprises an outer shell, a first copper bar and a plurality of battery modules. The battery modules are connected in series through a first copper bar, each battery module comprises an inner shell, a plurality of battery cells, first protection parts and second protection parts, the inner shell is provided with a containing cavity, the battery cells are arranged in the containing cavity, the first protection parts are arranged on the two sides of the battery cells, and the second protection parts are arranged at the bottom of the containing cavity; the battery cell is arranged on the second protection piece. The battery modules in the power box are stable in connection and not prone to shaking, the possibility of short circuit of the battery modules is reduced, meanwhile, the first protection parts and the second protection parts are adopted in the battery modules to achieve multi-directional protection on the battery cells, the influence of shaking and vibration on the battery cells in the conveying process is further reduced, and the service life of the battery cells is prolonged. In a mining scene, potential safety hazards can be reduced as much as possible, and use safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mine battery, specifically relates to a power box. BACKGROUND

[0002] In the coal mine, petroleum, chemical industry and other industries, there are a large number of flammable and explosive gas, steam and dust and other dangerous substances.Electrical equipment in these environments, may produce electric spark or high temperature, once these dangerous factors and flammable and explosive substances contact, it is easy to cause explosion accident, cause personnel casualties, equipment damage and mine collapse and other serious consequences.Therefore, mine battery must have explosion-proof function, to ensure the safe use in dangerous environment.

[0003] The power box usually needs to use trackless rubber-tyred car to be transported, in the mine environment containing gas and other flammable and explosive gas, especially the mine road is very complex, the shaking and vibration of vehicle are larger, the existing explosion-proof power box structure is not enough stable, and the battery module in the power box adopts soft wire electric connection, so that the battery module can not be connected into a whole, increase the shaking of battery module, easy to produce collision and short circuit, and the security risk is big. UTILITARIAN CONTENT

[0004] Therefore, the utility model provides a power box to solve the problem that the existing power box structure is not enough stable, and the battery module is easy to produce collision and short circuit.

[0005] Firstly, the utility model provides a power box, which comprises:

[0006] The outer shell body comprises:

[0007] The first copper bar comprises:

[0008] A plurality of battery modules are connected in series through the first copper bar, and the battery module comprises an inner shell body, a plurality of battery cores, a first protective member and a second protective member, the inner shell body is provided with a containing cavity, the battery core is arranged in the containing cavity, the first protective member is arranged on both sides of the battery core, and the second protective member is arranged at the bottom of the containing cavity.

[0009] Beneficial effects: The battery modules in the power box are connected in series through the first copper bar. The connection through the first copper bar enables several battery modules to be connected as a whole, which not only improves the stability of the battery modules in the accommodating cavity, but also improves the stability of the electrical connection between the battery modules, reduces the shaking of the battery modules relative to the shell during transportation, and further reduces the possibility of collision and short circuit between the battery modules. The first protective member is arranged between the battery cells in the battery module, which can reduce the collision between the battery cells and the shaking of the battery cells. The second protective member arranged at the bottom of the accommodating cavity can reduce the influence of vibration on the battery cells during transportation. The battery modules in the power box are connected stably and are not easy to shake, which reduces the possibility of short circuit of the battery modules. At the same time, the first protective member and the second protective member in the battery module provide multidirectional protection for the battery cells, further reducing the influence of shaking and vibration on the battery cells during transportation, and reducing the safety hazards as much as possible in the mining scene to ensure safe use.

[0010] In an optional embodiment, the first protective member is made of flame-retardant insulating material.

[0011] Beneficial effects: The first protective member is made of insulating flame-retardant material, which can reduce the possibility of short circuit between the battery cells while reducing the collision of the battery cells. In the event of an electric spark, the electric spark can be prevented from igniting the first protective member, further improving the protection of the first protective member.

[0012] In an optional embodiment, the second protective member is made of flexible flame-retardant insulating material.

[0013] Beneficial effects: The second protective member is made of flexible insulating flame-retardant material, which can not only reduce the possibility of short circuit and ignition, but also absorb the vibration generated in the mine or during the operation of the trackless rubber-tyred vehicle during transportation, reducing the influence of vibration on the battery cells during transportation and further improving the safety of the battery module.

[0014] In an optional embodiment, the inner shell includes a base and four side plates. The four side plates are connected in sequence from head to tail, and the side plates are arranged on the base. The side plates and the base form the accommodating cavity.

[0015] Beneficial effects: The accommodating cavity is formed by the side plates and the base, which is simple and reliable in structure, and facilitates installation and disassembly, and facilitates replacement or maintenance of the battery cells.

[0016] In an optional embodiment, the adjacent side plates are directly connected by riveting.

[0017] Beneficial effects: the side plates are connected by riveting, which can reduce the manufacturing difficulty of the inner shell, reduce the deformation of the side plates when connecting the side plates, ensure the quality of the side plates, and further ensure the quality of the inner shell. At the same time, the riveting connection between the side plates can make the connection between the side plates firm, and further improve the structural strength of the inner shell.

[0018] In an alternative embodiment, the side plates and the base are detachably connected by fasteners.

[0019] Beneficial effects: the base and the side plates are connected by fasteners, which is simple and firm, and convenient for disassembly between the side plates and the base, and convenient for replacing the battery core or repairing the inner shell.

[0020] In an alternative embodiment, the side plates are made of steel.

[0021] Beneficial effects: the side plates made of steel have higher structural strength, so that the connection between the side plates and the connection between the side plates and the base are less likely to loosen, ensuring the structural strength of the inner shell and avoiding damage to the battery core.

[0022] In an alternative embodiment, it further includes a positive terminal and a negative terminal, the positive terminal is connected with the positive of the battery module, and the negative terminal is connected with the negative of the battery module.

[0023] Beneficial effects: all the battery cores are electrically connected through the positive terminal and the negative terminal, and after the battery cores are transported to the destination, the positive terminal and the negative terminal can be connected with external equipment to provide power for the external equipment.

[0024] In an alternative embodiment, it further includes a relay, a fuse and an isolating switch, the relay is connected with the positive terminal, and the negative terminal is connected with the negative of the battery module in sequence through the fuse and the isolating switch.

[0025] Beneficial effects: the connection of the relay and the positive terminal can expand the control range, automatically adjust, protect safety, and convert the circuit, ensuring the safety of the electricity in the mine; the fuse and the isolating switch between the negative terminal and the negative of the battery module can protect the overcurrent, protect the short circuit and isolate the power supply, further improving the safety of the power supply box and ensuring the safety of the electricity in the mine.

[0026] In an alternative embodiment, it further includes a detection module, which is electrically connected with the battery module.

[0027] Beneficial effects: the detection module is electrically connected with the battery module to detect the state of the battery module, realizes monitoring of the health state of the battery module, ensures the use safety of the battery module, and facilitates the replacement of the battery module by workers. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0029] Fig. 1 A structural schematic view of a power supply box according to an embodiment of the present application;

[0030] Fig. 2 A sectional view of a power supply box according to an embodiment of the present application;

[0031] Fig. 3 A structural schematic view of a battery module according to an embodiment of the present application;

[0032] Fig. 4 A sectional view of a battery module according to an embodiment of the present application.

[0033] Explanation of reference signs:

[0034] 1, outer shell;

[0035] 2, first copper bar;

[0036] 3, battery module; 31, inner shell; 311, base; 312, side plate; 313, top plate; 32, battery core; 33, first protection piece; 34, second protection piece;

[0037] 41, positive terminal; 42, negative terminal; 43, relay; 44, fuse; 45, disconnecting switch; 46, nine-core terminal; 47, explosion-proof and wall-penetrating terminal;

[0038] 5, detection module; 51, acquisition wire harness; 52, acquisition mainboard. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0040] The embodiments of the utility model will be described below in combination with Figs. 1 to 4 The embodiments of the utility model power box are described.

[0041] According to the embodiments of the utility model, on the one hand, a power box is provided, which comprises an outer shell body 1, a first copper bar 2 and a plurality of battery modules 3. The battery modules 3 are connected in series through the first copper bar 2, and the battery module 3 comprises an inner shell body 31, a plurality of battery cores 32, a first protective piece 33 and a second protective piece 34. The inner shell body 31 is provided with a containing cavity, the battery core 32 is arranged in the containing cavity, the first protective piece 33 is arranged on both sides of the battery core 32, the second protective piece 34 is arranged at the bottom of the containing cavity, and the battery core 32 is arranged on the second protective piece 34.

[0042] The battery modules 3 in the power box provided in the embodiments are connected in series through the first copper bar 2, and the connection through the first copper bar 2 enables the plurality of battery modules 3 to be connected into a whole. Not only can the stability of the battery module 3 in the containing cavity be improved, but also the stability of the electrical connection between the battery modules 3 can be improved, the shaking of the battery module 3 relative to the outer shell body 1 during transportation is reduced, and the possibility of collision and short circuit between the battery modules 3 is further reduced. The first protective piece 33 is arranged between the battery cores 32 in the battery module 3, which can reduce the collision between the battery cores 32 and the shaking of the battery cores 32. The second protective piece 34 arranged at the bottom of the containing cavity can reduce the influence of vibration during transportation on the battery cores 32. The battery modules 3 in the power box are connected stably and are not easy to shake, which reduces the possibility of short circuit of the battery modules 3. At the same time, the first protective piece 33 and the second protective piece 34 are used in the battery module 3 to protect the battery cores 32 from all directions, which further reduces the influence of shaking and vibration during transportation on the battery cores 32. In the mining scene, the safety hidden danger can be reduced as much as possible to ensure the use safety.

[0043] It should be noted that adjacent battery cores 32 in the battery module 3 can share a first protective piece 33 to avoid wasting space.

[0044] In one embodiment, the first protective member 33 is made of a flame-retardant insulating material. The first protective member 33 is made of a flame-retardant insulating material, which can reduce the possibility of short circuit between the battery cells 32 and reduce the impact of the battery cells 32, and can prevent the first protective member 33 from being ignited by an electric spark when the electric spark occurs, thereby further improving the protection of the first protective member 33.

[0045] In one embodiment, the first protective member 33 is made of a PC insulating sheet (flame-retardant film), which is an alloy material film made of polycarbonate / polyester in different proportions, and has insulation, flame retardance and wear resistance, thereby effectively protecting the battery cells 32. In other embodiments, the first protective member 33 can also be made of other flame-retardant insulating materials.

[0046] In one embodiment, the second protective member 34 is made of a flexible flame-retardant insulating material. The second protective member 34 is made of a flexible flame-retardant insulating material, which can not only reduce the possibility of short circuit and ignition, but also can absorb the vibration generated in the mine during transportation or the vibration generated during the operation of the trackless rubber-tyred vehicle, thereby reducing the impact of vibration on the battery cells 32 during transportation and further improving the safety of the battery module 3.

[0047] In one embodiment, the inner housing 31 includes a base 311 and four side plates 312, which are sequentially connected in a head-to-tail manner and are arranged on the base 311, and the side plates 312 and the base 311 form a containing cavity. The containing cavity is formed by the side plates 312 and the base 311, which has a simple and reliable structure and is convenient for installation and disassembly, thereby facilitating the replacement or maintenance of the battery cells 32.

[0048] In one embodiment, the side plates 312 are directly connected by riveting. The side plates 312 are connected by riveting, which can reduce the manufacturing difficulty of the inner housing 31, reduce the deformation of the side plates 312 during connection, ensure the quality of the side plates 312 and the inner housing 31, and further improve the structural strength of the inner housing 31.

[0049] In one embodiment, the side plates 312 and the base 311 are detachably connected by fasteners. The base 311 and the side plates 312 are connected by fasteners, which has a simple and firm connection and is convenient for disassembly between the side plates 312 and the base 311, thereby facilitating the replacement of the battery cells 32 or the maintenance of the inner housing 31.

[0050] In one embodiment, the fasteners include bolts and nuts, and in other embodiments, other forms of fasteners can also be used.

[0051] In one embodiment, the side plates 312 are made of steel. The side plates 312 made of steel have higher structural strength, so that the connection between the side plates 312 and the connection between the side plates 312 and the base 311 are less likely to loosen, ensuring the structural strength of the inner shell 31 and avoiding damage to the battery core 32.

[0052] In one embodiment, the inner shell 31 further comprises a top plate 313, wherein two opposite side plates 312 form a sliding groove, and the top plate 313 is inserted between the two side plates 312 along the sliding groove and finally locked by fasteners, which is simple and convenient to connect.

[0053] In one embodiment, the power box further comprises a positive terminal 41 and a negative terminal 42, the positive terminal 41 is connected to the positive electrode of the battery module 3, and the negative terminal 42 is connected to the negative electrode of the battery module 3. All the battery cores 32 are electrically connected through the positive terminal 41 and the negative terminal 42, and after the battery cores 32 are transported to the destination, the positive terminal 41 and the negative terminal 42 can be connected to external equipment to provide power for the external equipment.

[0054] In one embodiment, the positive terminal 41 and the negative terminal 42 are both explosion-proof, which can further improve the safety of the power box and ensure the safety of the power supply.

[0055] In one embodiment, the power box further comprises a relay 43, a fuse 44 and an isolation switch 45, the relay 43 is connected to the positive terminal 41, and the negative terminal 42 and the negative electrode of the battery module 3 are sequentially connected with the fuse 44 and the isolation switch 45. The connection of the relay 43 and the positive terminal 41 can expand the control range, automatically adjust, provide safety protection and convert the circuit, ensuring the safety of the power supply in the mine; the fuse 44 and the isolation switch 45 arranged between the negative terminal 42 and the negative electrode of the battery module 3 can play the role of overcurrent protection, short circuit protection and isolation of the power supply, further improving the safety of the power box and ensuring the safety of the power supply in the mine.

[0056] In one embodiment, the power box further comprises a detection module 5, and the detection module 5 is electrically connected to the battery module 3. The detection module 5 is electrically connected to the battery module 3 to detect the state of the battery module 3, realize the monitoring of the health state of the battery module 3, ensure the safety of the use of the battery module 3, and facilitate the replacement of the staff.

[0057] In one embodiment, the power box further comprises a nine-core wiring terminal 46 and an explosion-proof wall-penetrating terminal 47, the detection module 5 comprises a collection wire harness 51 and a collection mainboard 52, the collection mainboard 52 is arranged on one side of the battery module 3, the collection mainboard 52 and the explosion-proof wall-penetrating terminal 47 are connected through the collection wire harness 51, and the other end of the explosion-proof wall-penetrating terminal 47 is connected with the nine-core wiring terminal 46. Through the above setting, the staff can collect the information of the battery module 3, and then know the use condition of the battery module 3, so that the staff can replace the battery module 3 in poor condition in time, and avoid safety hazards caused by damage.

[0058] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A power box, characterized in that, Include: The outer shell (1); The first copper bar (2); A plurality of battery modules (3), the battery modules (3) are connected in series through the first copper bar (2), the battery module (3) includes an inner shell (31), a plurality of battery cores (32), a first protective part (33) and a second protective part (34), the inner shell (31) is provided with a receiving cavity, the battery core (32) is arranged in the receiving cavity, the first protective part (33) is arranged on both sides of the battery core (32), and the second protective part (34) is arranged at the bottom of the receiving cavity, and the battery core (32) is arranged on the second protective part (34).

2. The power enclosure of claim 1, wherein, The first protective part (33) is made of flame-retardant insulating material.

3. The power enclosure of claim 1, wherein, The second protective part (34) is made of flexible flame-retardant insulating material.

4. The power enclosure of claim 1, wherein, The inner shell (31) includes a base (311) and four side plates (312), the four side plates (312) are sequentially connected in head and tail, the side plate (312) is arranged on the base (311), and the side plate (312) and the base (311) are arranged to form the receiving cavity.

5. The power enclosure of claim 4, wherein, The adjacent side plates (312) are directly connected in a riveting manner.

6. The power enclosure of claim 4, wherein, The side plate (312) and the base (311) are detachably connected through a fastener.

7. The power enclosure of claim 4, wherein, The side plate (312) is made of steel material.

8. The power enclosure of claim 1, wherein, It also includes a positive terminal (41) and a negative terminal (42), the positive terminal (41) is connected with the positive electrode of the battery module (3), and the negative terminal (42) is connected with the negative electrode of the battery module (3).

9. The power enclosure of claim 8, wherein, It also includes a relay (43), a fuse (44) and a disconnecting switch (45), the relay (43) is connected with the positive terminal (41), and the negative terminal (42) and the negative electrode of the battery module (3) are sequentially connected with the fuse (44) and the disconnecting switch (45).

10. The power pack of any of claims 1-9, wherein, It also includes a detection module (5), and the detection module (5) is electrically connected with the battery module (3).

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