Mining explosion-proof power box

Abstract

The utility model discloses a mining explosion-proof power box, which is applied to the field of power boxes and comprises a box body, a lithium ion battery is arranged in the box body, a cooling mechanism is arranged in the box body, and an explosion-proof layer is arranged on the inner wall of the box body. According to the cooling device, outside cold air is input into a cooling cavity through a cooling fan, then low-temperature gas is guided into a plurality of acceleration output assemblies through a plurality of flow guide plates, and after the acceleration output assemblies provide speed for the cold air, the cold air enters the interior of the box body in all directions to cool the interior of the box body; the situation that traditional cooling fins can only conduct local cooling is avoided, uneven temperature distribution in the box body is avoided, and the filter cover can prevent external impurities from entering the box body.

Description

Technical Field

[0001] The utility model belongs to the technical field of power boxes, and particularly relates to an explosion-proof power box for mines. Background Technique

[0002] The explosion-proof power box for mines is an essential safety power supply device for various electronic devices, control instruments, and measuring instruments underground in mines. It can provide voltage and current that meet the safety requirements of coal mines, which is a safeguard measure to ensure the safe operation of coal mine electronic devices and also one of the important measures to ensure the safe production of coal mines.

[0003] Currently, the Chinese utility model patent announced as CN221353588U discloses an explosion-proof power box for mines. It is provided with a box body, the edge of the top of the box body is hinged with a box cover through a hinge, explosion-proof layers are fixedly connected to the inside of the box body and the inside of the box cover, an explosion-proof second layer is fixedly connected to the surface of the explosion-proof first layer, an anti-static layer is fixedly connected to the surface of the explosion-proof second layer, and a through hole is opened on the front surface of the box body. Through the arrangement of the explosion-proof first layer and the explosion-proof second layer, when the power supply is in use, there will be a large amount of harmful substances such as gas, dust, hydrogen sulfide, and nitrogen dioxide in the mine, and it is necessary to resist and control sparks, high temperatures, or explosion sources. The materials of the explosion-proof first layer and the explosion-proof second layer can effectively prevent the possibility of explosion caused by electric sparks or high temperatures inside the power box, and can isolate the electric arcs and sparks inside the power box, thereby ensuring the safe operation of the explosion-proof power box for mines in a dangerous environment.

[0004] This patent only dissipates heat through heat sinks, but the heat dissipation area of the heat sinks is relatively fixed. Limited by the design and physical size of the radiator, it cannot dissipate heat from all directions inside the power box, which easily leads to uneven heat distribution inside the power box and is still prone to explosion. Content of the Utility Model

[0005] The purpose of the utility model is to provide an explosion-proof power box for mines, which solves the problem that an existing explosion-proof power box for mines only dissipates heat through heat sinks, but the heat dissipation area of the heat sinks is relatively fixed. Limited by the design and physical size of the radiator, it cannot dissipate heat from all directions inside the power box, which easily leads to uneven heat distribution inside the power box and is still prone to explosion.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions. An explosion-proof power box for mines includes a box body, a lithium-ion battery is arranged inside the box body, a temperature reduction mechanism is arranged inside the box body, and an explosion-proof layer is arranged on the inner wall of the box body;

[0007] The cooling mechanism includes a cooling fan, a cooling cavity, a flow guide plate, an acceleration output component, and a filter cover. The cooling fan is arranged on the outer top of the box body. The cooling cavity is arranged inside the box body. The air outlet end of the cooling fan is arranged inside the cooling cavity. The flow guide plate is arranged on the inner wall of the cooling cavity. The acceleration output component is arranged inside the cooling cavity. The output end of the acceleration output component extends into the box body. The filter cover is arranged at the air suction end of the cooling fan.

[0008] With the above technical solution, by setting the box body, the lithium-ion battery, the cooling mechanism, and the explosion-proof layer, during use, first, the box body can install and fix the lithium-ion battery. Then, the explosion-proof layer can fix the energy generated by the explosion inside the box body to avoid triggering a larger safety accident. Then, the cooling mechanism can cool the inside of the box body comprehensively to avoid explosion caused by high temperature or uneven temperature distribution. The cooling mechanism includes a cooling fan, a cooling cavity, a flow guide plate, an acceleration output component, and a filter cover. During use, first, the cooling fan inputs the outside cold air into the cooling cavity. Then, through several flow guide plates, the low-temperature gas is introduced into several acceleration output components. After the acceleration output component provides speed for the cold air, the cold air enters the inside of the box body comprehensively to cool the inside of the box body, avoiding the problem that the traditional heat sink can only cool locally and the uneven temperature distribution inside the box body. And the filter cover can prevent foreign impurities from entering the inside of the box body.

[0009] Further: The acceleration output component includes an input channel, a transition channel, and an output channel. The output channel is arranged in the cooling cavity and is connected to the cooling cavity at one end. The transition channel is arranged at the other end of the input channel. The output channel is arranged at the other end of the transition channel. The output channel is connected to the inside of the box body.

[0010] With the above technical solution, by setting the input channel, the transition channel, and the output channel, during use, first, the cold air enters the transition channel through the input channel. After the cold air enters the transition channel, it enters the inside of the box body through the output channel. In the output channel, the cold air is accelerated. Since the cold air has an acceleration when entering the inside of the box body, it can quickly diffuse inside the box body and can cool comprehensively. Since the diameter of the transition channel is larger than the diameters of the input channel and the output channel, when the gas enters the transition channel through the input channel and moves in the transition channel, due to the sudden decrease in the diameter of the output channel, the gas can be squeezed, making the gas accelerate the flow rate, so that the gas has an initial velocity when entering the inside of the box body and can quickly diffuse in the box body.

[0011] Further: A pressure relief hole is arranged on the back of the box body. The number of the pressure relief holes is several and they are evenly arranged. A filter plate is arranged on the pressure relief hole. The filter plate is fixed on the box body by bolts.

[0012] By adopting the above technical solution, by setting up a pressure relief hole and a filter plate, when cold air is injected into the box, the air pressure inside the box will increase. At this time, the pressure relief hole can relieve the pressure inside the box, and the filter plate can prevent external impurities from entering the interior of the box.

[0013] Furthermore: an explosion-proof panel is provided inside the box, a wiring slot is provided below the explosion-proof panel, a cable port is provided at one end of the wiring slot, and the cable port extends to the outside of the box.

[0014] By adopting the above technical solution, by setting up an explosion-proof plate, a wiring slot and a cable port, when in use, first the explosion-proof plate can divide the internal space of the box body, so that the wiring slot is separated from the lithium-ion battery, and then the cable port is set at the wiring slot, which can connect the external connection line to the lithium-ion battery.

[0015] Further: a sealed door is movably connected to the box body, the sealed door is fixed to the box body by a mechanical lock, and a handle is provided on the sealed door.

[0016] By adopting the above technical solution, a sealed door and a handle are provided. When in use, the sealed door is fixed to the box body by a mechanical lock, so the box body can be opened and closed. Then the handle can provide a fulcrum for the staff, making it convenient for the staff to open and close the sealed door.

[0017] Further: a sealing ring is provided at the contact point between the cable port and the box body, and the sealing ring is made of rubber material.

[0018] By adopting the above technical solution, a sealing ring is provided. When in use, the sealing ring can seal the connection between the cable port and the box body to prevent external impurities from entering the interior of the box body.

[0019] Further: a sealing gasket is arranged on the sealing door, and the sealing gasket is made of rubber material.

[0020] By adopting the above technical solution, a sealing gasket is set, and when the sealing door seals the box body, the sealing gasket on the sealing door can seal the connection between the sealing door and the box body, thereby preventing external impurities from entering the inside of the box body through the connection between the sealing door and the box body.

[0021] Further: a drainage block is arranged in the cooling cavity, the drainage block is arranged below the output end of the cooling fan, and the cross-street surface of the drainage block is arranged in a triangular shape.

[0022] By adopting the above technical solution, a drainage block is provided. When in use, the drainage block has a triangular cross-section, and the gas entering the cooling cavity can be guided to flow to both sides of the cooling cavity through the drainage block.

[0023] In summary, the utility model has the following beneficial effects:

[0024] By setting up a cooling mechanism, during use, first, the cooling fan inputs the outside cold air into the cooling cavity, and then through several guide plates, the low-temperature gas is introduced into several acceleration output components. After the acceleration output components provide speed for the cold air, the cold air enters the inside of the box in all directions to cool the inside of the box, avoiding the traditional heat sink that can only perform local cooling and the uneven temperature distribution inside the box. And the filter cover can prevent foreign impurities from entering the inside of the box.

[0025] By setting up an acceleration output component, during use, first, the cold air enters the transition channel through the input channel. After the cold air is accelerated, it enters the inside of the box through the output channel. Since the cold air has an acceleration when entering the inside of the box, it can quickly diffuse inside the box and can perform all-round cooling.

[0026] Based on the above improvement points, the overall technical effect achieved by this device is that it can perform all-round cooling treatment on the inside of the box through the outside cold air, avoiding explosion caused by too high temperature or uneven temperature distribution inside the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall structural schematic diagram of the utility model;

[0028] Figure 2 is the structural schematic diagram of the handle, sealing ring and gasket of the utility model;

[0029] Figure 3 is the left view of the utility model;

[0030] Figure 4 is the Figure 3 three-dimensional sectional view at A-A in the utility model;

[0031] Figure 5 is the structural schematic diagram of the box body, filter plate and cable port of the utility model;

[0032] Figure 6 is the Figure 4 enlarged view at A in the utility model.

[0033] In the figure, 1 is the box body; 2 is the lithium-ion battery; 3 is the cooling mechanism; 4 is the explosion-proof layer; 5 is the pressure relief hole; 6 is the filter plate; 7 is the explosion-proof plate; 8 is the wiring groove; 9 is the cable port; 10 is the sealing door; 11 is the handle; 12 is the sealing ring; 13 is the gasket; 14 is the drainage block; 301 is the cooling fan; 302 is the cooling cavity; 303 is the diversion plate; 304 is the acceleration output component; 305 is the filter cover; 3041 is the input channel; 3042 is the transition channel; 3043 is the output channel. Specific implementation mode

[0034] The following further elaborates on the present utility model in conjunction with the attached drawings.

[0035] Embodiment:

[0036] Please refer to Figures 1 - 6 , the present utility model provides a technical solution: a mine explosion-proof power supply box, including a box body 1, a lithium-ion battery 2 is arranged inside the box body 1, a cooling mechanism 3 is arranged inside the box body 1, and an explosion-proof layer 4 is arranged on the inner wall of the box body 1;

[0037] The cooling mechanism 3 includes a cooling fan 301, a cooling cavity 302, a diversion plate 303, an acceleration output component 304 and a filter cover 305. The cooling fan 301 is arranged on the outer top of the box body 1, the cooling cavity 302 is arranged inside the box body 1, the air outlet end of the cooling fan 301 is arranged inside the cooling cavity 302, the diversion plate 303 is arranged on the inner wall of the cooling cavity 302, the acceleration output component 304 is arranged inside the cooling cavity 302, the output end of the acceleration output component 304 extends to the inside of the box body 1, and the filter cover 305 is arranged on the air suction end of the cooling fan 301.

[0038] By arranging the box body 1, the lithium-ion battery 2, the cooling mechanism 3 and the explosion-proof layer 4, during use, first, the box body 1 can install and fix the lithium-ion battery 2, and then the explosion-proof layer 4 can fix the energy generated by the explosion inside the box body 1 to avoid triggering a larger safety accident. Then, the cooling mechanism 3 can cool the inside of the box body 1 comprehensively to avoid explosion caused by high temperature or uneven temperature distribution;

[0039] During use, first, the cooling fan 301 inputs the outside cold air into the cooling cavity 302, and then through a plurality of diversion plates 303, the low-temperature gas is introduced into a plurality of acceleration output components 304. After the acceleration output component 304 provides speed for the cold air, the cold air enters the inside of the box body 1 comprehensively to cool the inside of the box body 1, avoiding the problem that the traditional heat sink can only cool locally and the uneven temperature distribution inside the box body 1. And the filter cover 305 can prevent foreign impurities from entering the inside of the box body 1.

[0040] ReferenceFigure 6 , the acceleration output component 304 includes an input channel 3041, a transition channel 3042, and an output channel 3043. The input channel 3041 is disposed in the cooling cavity 302 and one end thereof communicates with the cooling cavity 302. The transition channel 3042 is disposed at the other end of the input channel 3041. The output channel 3043 is disposed at the other end of the transition channel 3042. The output channel 3043 communicates with the interior of the box body 1. By providing the input channel 3041, the transition channel 3042, and the output channel 3043, during use, first, cold air enters the transition channel 3042 through the input channel 3041. After the cold air enters the transition channel 3042, it enters the interior of the box body 1 through the output channel 3043. In the output channel 3043, the cold air is accelerated. Since the cold air has an acceleration when entering the interior of the box body 1, it can quickly diffuse inside the box body 1 and can perform all-round cooling. Since the diameter of the transition channel 3042 is larger than the diameters of the input channel 3041 and the output channel 3043, when the gas enters the transition channel 3042 through the input channel 3041 and moves in the transition channel 3042, since the diameter of the output channel 3043 suddenly becomes smaller, the gas can be squeezed, so that the gas flow rate is increased, and the gas has an initial velocity when entering the interior of the box body 1 and can quickly diffuse in the box body 1.

[0041] Reference Figure 4 and Figure 5 , a pressure relief hole 5 is provided on the back of the box body 1. The number of the pressure relief holes 5 is several and they are evenly arranged. A filter plate 6 is provided on the pressure relief hole 5. The filter plate 6 is fixed to the box body 1 by bolts. By providing the pressure relief hole 5 and the filter plate 6, when cold air is injected into the interior of the box body 1, the air pressure inside the box body 1 will increase. At this time, the pressure relief hole 5 can relieve the pressure inside the box body 1, and the filter plate 6 can prevent external impurities from entering the interior of the box body 1.

[0042] Reference Figure 4 , an explosion-proof plate 7 is provided inside the box body 1. A wiring groove 8 is provided below the explosion-proof plate 7. One end of the wiring groove 8 is provided with a cable port 9. The cable port 9 extends to the outside of the box body 1. By providing the explosion-proof plate 7, the wiring groove 8, and the cable port 9, during use, first, the explosion-proof plate 7 can divide the interior space of the box body 1 to separate the wiring groove 8 from the lithium-ion battery 2, and then the cable port 9 is provided at the wiring groove 8 to connect the external connecting wire to the lithium-ion battery 2.

[0043] Reference Figure 2A sealing door 10 is movably connected to the box body 1, and the sealing door 10 is fixed to the box body 1 by a mechanical lock. A handle 11 is provided on the sealing door 10. By providing the sealing door 10 and the handle 11, when in use, the sealing door 10 is fixed to the box body 1 by the mechanical lock, and the box body 1 can be opened and closed, and then the handle 11 can provide a fulcrum for the staff, which can facilitate the staff to open and close the sealing door 10.

[0044] refer to Figure 2 A sealing ring 12 is provided at the contact point between the cable port 9 and the box body 1. The sealing ring 12 is made of rubber. By providing the sealing ring 12, when in use, the sealing ring 12 can seal the connection between the cable port 9 and the box body 1 to prevent external impurities from entering the interior of the box body 1.

[0045] refer to Figure 1 A sealing gasket 13 is provided on the sealing door 10, and the sealing gasket 13 is made of rubber. By providing the sealing gasket 13, when the sealing door 10 seals the box body 1, the sealing gasket 13 on the sealing door 10 can seal the connection between the sealing door 10 and the box body 1, thereby preventing external impurities from entering the inside of the box body 1 through the connection between the sealing door 10 and the box body 1.

[0046] refer to Figure 4 A drainage block 14 is provided in the cooling cavity 302. The drainage block 14 is provided below the output end of the cooling fan 301. The cross section of the drainage block 14 is triangular. By providing the drainage block 14, when in use, the cross section of the drainage block 14 is triangular, and the gas entering the cooling cavity 302 can be guided to flow to both sides of the cooling cavity 302 through the drainage block 14.

[0047] Brief description of the usage process:

[0048] When in use, first, the box body 1 can install and fix the lithium-ion battery 2, and then the explosion-proof layer 4 can fix the energy generated by the explosion inside the box body 1 to avoid causing a larger safety accident, and then the external cold air is input into the cooling cavity 302 through the cooling fan 301, and then the low-temperature gas is introduced into the several accelerating output components 304 through several guide plates 303. After the accelerating output components 304 provide speed for the cold air, the cold air enters the inside of the box body 1 in all directions to cool down the inside of the box body 1, avoiding the problem that the traditional heat sink can only perform local cooling, and avoiding the problem of uneven temperature distribution inside the box body 1, and the filter cover 305 can prevent external impurities from entering the inside of the box body 1;

[0049] Then, the cold air enters the transition channel 3042 through the input channel 3041. After entering the transition channel 3042, the cold air enters the interior of the box 1 through the output channel 3043. In the output channel 3043, the cold air is accelerated. Since the cold air has acceleration when entering the interior of the box 1, it can diffuse rapidly inside the box 1 and can perform all-round cooling. Since the diameter of the transition channel 3042 is larger than the diameters of the input channel 3041 and the output channel 3043, after the gas enters the transition channel 3042 through the input channel 3041, it moves in the transition channel 3042 and enters the output channel 3043. Since the diameter of the output channel 3043 suddenly decreases, the gas can be squeezed, so that the gas speeds up, so that the gas has an initial velocity when entering the interior of the box 1, and can diffuse rapidly in the box 1.

[0050] Finally, the explosion-proof plate 7 can divide the internal space of the box body 1, so that the wiring slot 8 is separated from the lithium-ion battery 2, and then the cable port 9 is set at the wiring slot 8, which can connect the external connection line to the lithium-ion battery 2, and the sealed door 10 is fixed to the box body 1 by a mechanical lock, and the box body 1 can be opened and closed, and then the handle 11 can provide a fulcrum for the staff, which can facilitate the staff to open and close the sealed door 10.

[0051] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An explosion-proof power supply box for mines, comprising a box body (1), characterized in that: Inside the box body (1), a lithium-ion battery (2) is fixedly connected, a cooling mechanism (3) is arranged inside the box body (1), and an explosion-proof layer (4) is arranged on the inner wall of the box body (1). The cooling mechanism (3) includes a cooling fan (301), a cooling cavity (302), a deflector (303), an acceleration output component (304) and a filter cover (305). The cooling fan (301) is fixedly connected to the outer top of the box body (1). The cooling cavity (302) is opened inside the box body (1). The air outlet end of the cooling fan (301) is fixedly connected to the inside of the cooling cavity (302). The deflector (303) is fixedly connected to the inner wall of the cooling cavity (302). The acceleration output component (304) is arranged inside the cooling cavity (302). The output end of the acceleration output component (304) extends to the inside of the box body (1). The filter cover (305) is fixedly connected to the air suction end of the cooling fan (301) by bolts.

2. The intrinsically safe power supply box for mine use according to claim 1, wherein: The acceleration output component (304) includes an input channel (3041), a transition channel (3042) and an output channel (3043). The input channel (3041) is opened in the cooling cavity (302) and one end is communicated with the cooling cavity (302). The transition channel (3042) is opened at the other end of the input channel (3041). The output channel (3043) is arranged at the other end of the transition channel (3042). The output channel (3043) is communicated with the inside of the box body (1). The diameter of the transition channel (3042) is larger than the diameters of the input channel (3041) and the output channel (3043).

3. The explosion-proof power supply box for mine use according to claim 1, wherein: A pressure relief hole (5) is opened on the back of the box body (1). The number of the pressure relief holes (5) is several and they are evenly arranged. A filter plate (6) is fixedly connected to the pressure relief hole (5). The filter plate (6) is fixedly connected to the box body (1) by bolts.

4. The explosion-proof power supply box for mine use according to claim 1, characterized in that: An explosion-proof plate (7) is fixedly connected inside the box body (1). A wiring groove (8) is opened below the explosion-proof plate (7). One end of the wiring groove (8) is provided with a cable port (9). The cable port (9) extends to the outside of the box body (1).

5. A mine flameproof power supply box according to claim 1, characterized in that: A sealing door (10) is movably connected to the box body (1). The sealing door (10) is fixed to the box body (1) by a mechanical lock. A handle (11) is fixedly connected to the sealing door (10).

6. The explosion-proof power supply box for mine use according to claim 4, wherein: A sealing ring (12) is arranged at the contact position between the cable port (9) and the box body (1). The sealing ring (12) is made of rubber.

7. The mine flameproof power supply box according to claim 5, characterized in that: A sealing gasket (13) is arranged on the sealing door (10). The sealing gasket (13) is made of rubber.

8. The explosion-proof power supply box for mine use according to claim 1, wherein: A diversion block (14) is fixedly connected in the cooling cavity (302). The diversion block (14) is arranged below the output end of the cooling fan (301). The cross section of the diversion block (14) is triangular.

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