CN111146716A

CN111146716A - Mining explosion-proof power box

Info

Publication number: CN111146716A
Application number: CN202010125263.0A
Authority: CN
Inventors: 王明星; 程鹏; 陶玉成; 卢娟
Original assignee: Huainan City Chuangjin Electronic Co ltd
Current assignee: Huainan City Chuangjin Electronic Co ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-05-12

Abstract

The invention discloses a mining explosion-proof power box, relates to the technical field of power boxes, and aims to solve the problems that the existing power box is low in safety and has more potential safety hazards. The utility model discloses a lithium iron phosphate power battery pack, including power supply box main part, header, switch box and power supply box main part welded connection, the internally mounted of power supply box main part has total circuit mechanism, the lower extreme of total circuit mechanism is provided with first rubber cover flexible cable, the upper end of total circuit mechanism is provided with first contact, the top cap is installed to the upper end of power supply box main part, closing mechanism is installed to the lower extreme of top cap, closing mechanism's lower extreme is provided with the second contact, lithium iron phosphate power battery pack is installed to the inside one side of power supply box main part, the control box is installed to the inside centre of power supply box main part, the junction box is installed to the inside opposite side of power supply box main part, install the control box between junction box and the.

Description

Mining explosion-proof power box

Technical Field

The invention relates to the technical field of power boxes, in particular to a mining explosion-proof power box.

Background

Along with the gradual development of economic society, the governments in China pay more attention to mine accidents. The safe production of mines is always a key point of domestic and overseas research in recent years, the consensus in the world is that underground production is carried out on the premise of ensuring safety, so that China proposes that danger avoiding facilities isolated from the external dangerous environment are arranged underground to avoid casualties caused by mine accidents, the underground danger avoiding facilities are provided with emergency power supplies, lighting, environment monitoring, ventilation facilities and the like, the facilities all need to use power supplies, the using environment of mining equipment is relatively severe, an explosion-proof diesel locomotive working underground in coal mines needs a mine explosion-proof power supply box as a starting and lighting power supply, the mine explosion-proof power supply box is mainly used in places such as coal mines, metal mines, tunnels, subways and the like, can provide working electricity for the equipment needing to provide direct-current power supplies, and the power supply box needs to be placed underground for a long time, due to the harsh downhole environment, the humidity is often greater than seventy percent, and even up to ninety-five percent.

However, the existing power box is low in safety and has more potential safety hazards, so that the existing requirements are not met, and the mining explosion-proof power box is provided.

Disclosure of Invention

The invention aims to provide a mining explosion-proof power box, which aims to solve the problems that the existing power box in the background technology is low in safety and has more potential safety hazards.

In order to achieve the purpose, the invention provides the following technical scheme: the mining flame-proof type power box comprises a power box main body, wherein a bottom box is installed at the lower end of the power box main body and is connected with the power box main body in a welding mode, a bus mechanism is installed inside the power box main body, a first rubber-sheathed flexible cable is arranged at the lower end of the bus mechanism, a first contact is arranged at the upper end of the bus mechanism, a top cover is installed at the upper end of the power box main body, a closing mechanism is installed at the lower end of the top cover, a second contact is arranged at the lower end of the closing mechanism, a lithium iron phosphate power battery component is installed at one side inside the power box main body, a control box is installed in the middle of the inside of the power box main body, a junction box is installed at the other side of the inside of the power box main body, a control box is installed between the junction box and the lithium iron phosphate power battery component, and maintenance box covers are installed at the, and the maintenance box cover is connected with the power box main body through screws, one side of the outer part of the power box main body is provided with a circuit inlet, one end of the circuit inlet is provided with a second rubber jacketed flexible cable, and the top cover is connected with the power box main body through a fixing bolt.

Preferably, a first heat dissipation mechanism is installed to the lower extreme of lithium iron phosphate power battery pack, a second heat dissipation mechanism is installed to the lower extreme of control box, a third heat dissipation mechanism is installed to the lower extreme of junction box.

Preferably, the first heat dissipation mechanism, the second heat dissipation mechanism and the third heat dissipation mechanism all comprise heat dissipation fins, a heat conduction plate and a heat dissipation fan, and the heat conduction plate is located between the heat dissipation fins and the heat dissipation fan.

Preferably, the external mounting of under casing has annular base, the inside of annular base is provided with ventilative waterproof layer, the upper end of top cap is provided with the bleeder vent, the upper end of bleeder vent is provided with waterproof net.

Preferably, the brake rollers are installed at the corners of the lower end of the annular base and connected with the annular base through bolts.

Preferably, the inside of power box main part is provided with the baffle, the outside of baffle is provided with dampproofing board, and baffle and dampproofing board cementing are connected.

Preferably, inert gas filling layers are arranged inside the lithium iron phosphate power battery assembly, the control box and the junction box.

Preferably, explosion-proof observation glass is installed at the front end of the maintenance box cover, a temperature control switch is installed below the explosion-proof observation glass, the temperature control switch is connected with the maintenance box cover through screws, and the type of the temperature control switch is set to be BC 108B.

Compared with the prior art, the invention has the beneficial effects that:

1. the power supply box comprises a power supply box main body, a power supply box cover, a closing mechanism, a power supply box cover and a power supply box cover, wherein the power supply box main body is provided with a first contact and a second contact, the first contact is connected with the second contact, the second contact is connected with the first contact, the closing mechanism is connected with the closing mechanism, the second contact is connected with the second contact.

2. According to the invention, the first heat dissipation mechanism, the second heat dissipation mechanism and the third heat dissipation mechanism are used for respectively carrying out heat dissipation and cooling on the lithium iron phosphate power battery component, the control box and the junction box, the critical value temperature is preset by the temperature control switch, when the temperature is higher than the critical value temperature, the temperature control switch controls the alternating current contactor, the alternating current contactor controls the heat dissipation fan to work, the heat in the lithium iron phosphate power battery component, the control box and the junction box is dissipated, the cooling action is realized, the temperature in the lithium iron phosphate power battery component, the control box and the junction box can be constantly kept constant, so that explosion or damage to devices caused by overhigh temperature is avoided, and the use safety is further improved.

3. According to the invention, the inert gas is filled in the lithium iron phosphate power battery component, the control box and the junction box, and the inert gas can not participate in chemical reaction, so that chemical energy can not be generated, huge energy in molecules can not be released, and explosion starts from the inside, so that the inert gas can not explode, the explosion of the power box main body is also prevented, the use safety of the power box is further improved, and the lithium iron phosphate power battery is safer compared with other batteries because no hydrogen is separated out in the charging and discharging processes.

4. According to the invention, the brake roller is arranged at the lower end of the annular base, so that the power box main body can be flexibly moved, the movement is convenient, time and labor are saved, and the position of the power box main body can be rapidly changed.

5. The moisture-proof board plays a moisture-proof role, the breathable waterproof layer and the waterproof net prevent moisture from entering while air permeability is not influenced, a good working environment is provided for the power box main body, and the service life of the power box main body is prolonged.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a mining explosion-proof power box of the invention;

FIG. 2 is an overall front view of the mining explosion-proof power box of the invention;

FIG. 3 is a diagram of the connection of the bus mechanism and the closure mechanism of the present invention;

FIG. 4 is an enlarged view of a portion of region A of the present invention;

fig. 5 is a top view of the overcap of the present invention.

In the figure: 1. a power box main body; 2. a bottom box; 3. a bus mechanism; 4. a first cabtyre flexible cable; 5. a first contact; 6. a top cover; 7. a closing mechanism; 8. a second contact; 9. a lithium iron phosphate power cell assembly; 10. a control box; 11. a junction box; 12. maintaining the box cover; 13. explosion-proof observation glass; 14. a line inlet; 15. a second cabtyre flexible cable; 16. a heat sink; 17. a heat conducting plate; 18. a heat radiation fan; 19. an annular base; 20. a breathable waterproof layer; 21. a brake roller; 22. a partition plate; 23. a moisture-proof plate; 24. an inert gas filled layer; 25. fixing the bolt; 26. air holes are formed; 27. a waterproof net; 28. a first heat dissipation mechanism; 29. a second heat dissipation mechanism; 30. a third heat dissipation mechanism; 31. a temperature control switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, an embodiment of the present invention is shown: the mining explosion-proof power box comprises a power box main body 1, wherein a bottom box 2 is arranged at the lower end of the power box main body 1, the bottom box 2 is connected with the power box main body 1 in a welding mode, the welding connection is good in air tightness and water tightness, the structural rigidity is also large, the structural integrity is good, labor and time are saved, the sectional area of materials is not reduced, the materials are fully utilized, a main circuit mechanism 3 is arranged in the power box main body 1, a first rubber-sheathed flexible cable 4 is arranged at the lower end of the main circuit mechanism 3, a first contact 5 is arranged at the upper end of the main circuit mechanism 3, a lithium iron top cover 6 is arranged at the upper end of the power box main body 1, a lithium iron closing mechanism 7 is arranged at the lower end of the top cover 6, a second contact 8 is arranged at the lower end of the closing mechanism 7, a phosphoric acid lithium iron power battery component 9 is arranged on one side in the power box main body 1, and, therefore, compared with other batteries, the battery box is safer, the control box 10 is installed in the middle of the power box main body 1, the junction box 11 is installed on the other side of the power box main body 1, the control box 10 is installed between the junction box 11 and the lithium iron phosphate power battery assembly 9, the maintenance box covers 12 are installed at the front ends of the lithium iron phosphate power battery assembly 9, the control box 10 and the junction box 11, the maintenance box covers 12 are connected with the power box main body 1 through screws, the circuit inlet 14 is formed in one side of the outer portion of the power box main body 1, the second rubber jacketed flexible cable 15 is installed at one end of the circuit inlet 14, the rubber jacketed flexible cable has good flame retardance, namely, flame retardance, weather resistance, cold and hot wind, frost, snow and rain resistance, good mechanical properties, namely, friction resistance, extrusion resistance and repeated winding resistance, the top cover 6 is connected with the power box main body 1 through the fixing bolt 25, when the power box main body 1, can open top cap 6, with top cap 6 and power box main part 1 separation, can realize closing of circuit, maintain safelyr this moment, the corresponding maintenance case lid 12 of accessible carries out quick maintenance when the maintenance, and easy to assemble and safety are dismantled in the maintenance, have eliminated the potential safety hazard of electrocuting.

Further, first heat dissipation mechanism 28 is installed to the lower extreme of lithium iron phosphate power battery subassembly 9, second heat dissipation mechanism 29 is installed to the lower extreme of control box 10, third heat dissipation mechanism 30 is installed to the lower extreme of junction box 11, first heat dissipation mechanism 28, second heat dissipation mechanism 29 and third heat dissipation mechanism 30 carry out quick heat dissipation cooling to lithium iron phosphate power battery subassembly 9, control box 10 and junction box 11 respectively, can not produce phenomenons such as electric arc, spark under the assurance normal operating condition, whole degree of safety has been improved greatly.

Further, the first heat dissipation mechanism 28, the second heat dissipation mechanism 29 and the third heat dissipation mechanism 30 all include the heat dissipation fins 16, the heat conduction plate 17 and the heat dissipation fan 18, and the heat conduction plate 17 is located between the heat dissipation fins 16 and the heat dissipation fan 18, so that the heat dissipation effect is good, the structure is simple, the maintenance is facilitated, and the overall cost is low.

Further, an annular base 19 is installed outside the bottom case 2, a breathable waterproof layer 20 is arranged inside the annular base 19, a breathable hole 26 is formed in the upper end of the top cover 6, a waterproof net 27 is arranged at the upper end of the breathable hole 26, and the breathable waterproof layer 20 and the waterproof net 27 prevent moisture from entering while ventilation is not affected.

Further, brake roller 21 is all installed at the edge of annular base 19 lower extreme, and brake roller 21 passes through bolted connection with annular base 19, moves power supply box main part 1 to suitable work area through brake roller 21 and carries out work, can move power supply box main part 1 in a flexible way, and it is convenient and labour saving and time saving to remove.

Further, the inside of power supply box main part 1 is provided with baffle 22, and the outside of baffle 22 is provided with dampproofing board 23, and baffle 22 and dampproofing board 23 cementing are connected, play damp-proofing effect through dampproofing board 23, and the high cost of material is low in stress concentration on whole glued surface, so the fatigue resistance can have good leakproofness, insulating nature and anticorrosive nature.

Further, the inert gas filling layers 24 are arranged inside the lithium iron phosphate power battery assembly 9, the control box 10 and the junction box 11, and inert gas cannot participate in chemical reaction, so that chemical energy cannot be generated, huge energy inside molecules cannot be released, explosion starts from the inside, the inert gas cannot explode, the power box main body 1 is prevented from exploding, and the use safety of the power box main body 1 is further improved.

Further, the front end of the maintenance box cover 12 is provided with the explosion-proof observation glass 13, the temperature control switch 31 is arranged below the explosion-proof observation glass 13, the temperature control switch 31 is connected with the maintenance box cover 12 through screws, the model of the temperature control switch 31 is set to be BC108B, the critical value temperature is preset for the temperature control switch 31, when the temperature is higher than the critical value, the temperature control switch 31 controls the alternating current contactor, the alternating current contactor controls the heat dissipation fan 18 to work, the heat inside the lithium iron phosphate power battery assembly 9, the control box 10 and the junction box 11 is dissipated, the cooling action is realized, the temperature inside the lithium iron phosphate power battery assembly 9, the control box 10 and the junction box 11 can be constantly kept constant, the automation degree is high, and meanwhile, the safety is improved.

The working principle is as follows: when the power box is used, the power box main body 1 is moved to a proper working area through the brake roller 21 to work, the lithium iron phosphate power battery component 9, the control box 10 and the junction box 11 are independently arranged to be beneficial to maintenance, the electrification closing of a main circuit is realized by the contact of the second contact 8 of the closing mechanism 7 and the first contact 5 of the main circuit mechanism 3, when the power box main body 1 needs to be maintained, the top cover 6 can be opened, the top cover 6 is separated from the power box main body 1, the closing of the circuit can be realized, the maintenance is safer, the corresponding maintenance box cover 12 can be used for quick maintenance during the maintenance, the disassembly and the installation are convenient and safe, the potential safety hazard of electric shock is eliminated, the inert gas filling layer 24 is filled in the lithium iron phosphate power battery component 9, the control box 10 and the junction box 11, and the inert gas can not participate in the chemical reaction, therefore, chemical energy cannot be generated, huge energy in molecules cannot be released, explosion starts from the inside, inert gas cannot explode, the explosion of the power box main body 1 is prevented, the use safety of the power box main body 1 is further improved, the lithium iron phosphate power battery component 9 does not have hydrogen gas precipitation in the charging and discharging process, so that the lithium iron phosphate power battery component is safer compared with other batteries, the moisture-proof effect is achieved through the moisture-proof plate 23, the air-permeable waterproof layer 20 and the waterproof net 27 do not influence air permeability, the moisture is prevented from entering, a good working environment is provided for the power box main body 1, the service life of the power box main body is prolonged, the first heat dissipation mechanism 28, the second heat dissipation mechanism 29 and the third heat dissipation mechanism 30 respectively dissipate heat and cool the lithium iron phosphate power battery component 9, the control box 10 and the wiring box 11, critical temperature is preset through the temperature control switch 31, when the temperature is higher than the value, the temperature control switch 31 controls the alternating current contactor, the alternating current contactor controls the heat dissipation fan 18 to work, the heat inside the lithium iron phosphate power battery assembly 9, the control box 10 and the junction box 11 is dissipated, the cooling action is realized, the temperature inside the lithium iron phosphate power battery assembly 9, the control box 10 and the junction box 11 can be constantly kept constant, the explosion or the damage to devices caused by overhigh temperature is avoided, and the use safety is further improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Mining flame-proof type power supply box, including power supply box main part (1), its characterized in that: the power box is characterized in that a bottom box (2) is installed at the lower end of the power box main body (1), the bottom box (2) is connected with the power box main body (1) in a welding mode, a main circuit mechanism (3) is installed inside the power box main body (1), a first rubber jacketed flexible cable (4) is arranged at the lower end of the main circuit mechanism (3), a first contact (5) is arranged at the upper end of the main circuit mechanism (3), a top cover (6) is installed at the upper end of the power box main body (1), a closing mechanism (7) is installed at the lower end of the top cover (6), a second contact (8) is arranged at the lower end of the closing mechanism (7), a lithium iron phosphate power battery assembly (9) is installed at one side inside the power box main body (1), a control box (10) is installed in the middle inside the power box main body (1), and a junction box (11) is installed at the other, install control box (10) between junction box (11) and lithium iron phosphate power battery subassembly (9), maintenance case lid (12) are all installed to the front end of lithium iron phosphate power battery subassembly (9), control box (10) and junction box (11), and maintain case lid (12) and pass through the screw connection with power box main part (1), the outside one side of power box main part (1) is provided with circuit import (14), second rubber cover flexible cable (15) are installed to the one end of circuit import (14), top cap (6) are connected through fixing bolt (25) with power box main part (1).

2. The mining flameproof power box according to claim 1, characterized in that: first heat dissipation mechanism (28) is installed to the lower extreme of lithium iron phosphate power battery subassembly (9), second heat dissipation mechanism (29) is installed to the lower extreme of control box (10), third heat dissipation mechanism (30) are installed to the lower extreme of junction box (11).

3. The mining flameproof power box of claim 2, characterized in that: the first heat dissipation mechanism (28), the second heat dissipation mechanism (29) and the third heat dissipation mechanism (30) comprise heat dissipation fins (16), a heat conduction plate (17) and a heat dissipation fan (18), and the heat conduction plate (17) is located between the heat dissipation fins (16) and the heat dissipation fan (18).

4. The mining flameproof power box according to claim 1, characterized in that: the outside mounting of under casing (2) has annular base (19), the inside of annular base (19) is provided with ventilative waterproof layer (20), the upper end of top cap (6) is provided with bleeder vent (26), the upper end of bleeder vent (26) is provided with waterproof net (27).

5. The mining flameproof power box according to claim 4, characterized in that: brake rollers (21) are installed at the corners of the lower end of the annular base (19), and the brake rollers (21) are connected with the annular base (19) through bolts.

6. The mining flameproof power box according to claim 1, characterized in that: the inside of power box main part (1) is provided with baffle (22), the outside of baffle (22) is provided with dampproofing board (23), and baffle (22) are connected with dampproofing board (23) cementing.

7. The mining flameproof power box according to claim 1, characterized in that: and inert gas filling layers (24) are arranged in the lithium iron phosphate power battery assembly (9), the control box (10) and the junction box (11).

8. The mining flameproof power box according to claim 1, characterized in that: explosion-proof observation glass (13) are installed to the front end of maintenance case lid (12), and temperature detect switch (31) is installed to the below of explosion-proof observation glass (13), and temperature detect switch (31) passes through bolted connection with maintenance case lid (12), and temperature detect switch (31)'s model sets up to BC108B type.