CN204190466U - A kind of urgent danger prevention facility lithium secondary power supply for subsequent use explosion-proof tank - Google Patents

Abstract

The utility model relates to an emergency avoidance system for underground coal mines, in particular to an explosion-proof box for standby lithium secondary power supplies for emergency avoidance facilities. Installed in an underground refuge cabin or refuge chamber, including a battery chamber, a control chamber and a wiring chamber, the battery chamber, control chamber and wiring chamber are respectively provided with a battery chamber cover, a control chamber cover and a wiring chamber cover. The side wall of the battery chamber is provided with a through-cavity terminal I for introducing the signal cable and power cable of the battery module into the control chamber, and the side wall of the control chamber is provided with an explosion-proof switch connected with an external knob and a user To lead the signal cable and power cable into the cavity terminal II of the wiring cavity, the bottom of the control cavity is provided with a screw hole for fixing the controller, the wiring cavity is provided with a bus bar, and the outer wall of the connection cavity is provided with a rubber Cable exit device. The utility model has the characteristics of compact structure, safety and reliability, easy operation and underground maintenance, and is suitable to be used as an explosion-proof box for backup power supply of underground safety facilities in coal mines.

Description

An explosion-proof box for spare lithium secondary power supply for emergency avoidance facilities

technical field

The utility model relates to an emergency avoidance system for underground coal mines, in particular to an explosion-proof box for spare lithium secondary power supplies for emergency avoidance facilities.

Background technique

From 2002 to 2010, the national coal output increased by 123.37%, while the number of deaths in coal mine accidents and the death rate per million tons decreased by 65.22% and 85% respectively. However, the total number of coal mine accidents is still too large, and the gap with developed countries is obvious. In view of the frequent occurrence of coal mine disasters and accidents in my country, the country is actively promoting the construction of emergency avoidance facilities in coal mines. With the construction of a large number of emergency avoidance facilities, it is very important to use a large-capacity power supply as a backup power supply, especially the application of rechargeable secondary batteries is becoming more and more widely used. The particularity of the power supply requires that the power explosion-proof box used to house the power battery must have the characteristics of good explosion-proof performance, safety and reliability, and easy operation and maintenance.

The current explosion-proof cabinets are mostly welded structures, which are divided into two parts: the flameproof main chamber and the flameproof wiring chamber. The large-capacity lithium secondary power supply also needs to be equipped with electrical equipment and components such as battery management system controllers. On the basis of the structure, a control chamber is added, which is not only safer but also convenient for maintenance and replacement of electrical components. The structure of the explosion-proof box for the standby large-capacity lithium power supply system of emergency avoidance facilities is not yet unified, and it is necessary to design its structure.

Utility model content

In order to solve the problem that the existing storage battery explosion-proof box is not suitable for standby large-capacity lithium power supply for emergency avoidance facilities, the purpose of the utility model is to provide an explosion-proof box for standby lithium secondary power supply for emergency avoidance facilities. The explosion-proof box for standby lithium secondary power supply for emergency avoidance facilities provides a safe, reliable, convenient maintenance, and is suitable for use in large-capacity lithium power supplies for emergency avoidance facilities.

In order to achieve the above object, the utility model adopts the following technical solutions:

An explosion-proof box for standby lithium secondary power supply for emergency avoidance facilities, installed in an underground refuge cabin or refuge chamber, including a battery cavity, a control cavity and a wiring cavity, and the battery cavity, control cavity and wiring cavity are respectively provided with a battery cavity Cover plate, control cavity cover plate and wiring cavity cover plate, the side wall of the battery cavity is provided with a cavity-through terminal I for introducing the signal cable and power cable of the battery module into the control cavity, and the control cavity The side wall is provided with an explosion-proof switch connected to the external knob and a through-cavity terminal II for introducing signal cables and power cables into the wiring cavity. The bottom of the control cavity is provided with a threaded hole for fixing the controller. The wiring cavity A bus bar is arranged inside, and a rubber cable lead-out device is arranged on the outer wall of the wiring cavity.

The inner walls on opposite sides of the battery cavity are provided with connecting bars for installing battery modules. A handle is welded on the cover plate of the battery cavity, and a reinforcing rib is welded on the bottom of the battery cavity.

The explosion-proof switch is installed on the switch bracket, and the switch bracket is arranged on the side wall of the control chamber. on the side wall of the cavity. A flameproof copper sleeve is provided on the side wall of the control chamber, and the intermediate shaft is inserted in the flameproof copper sleeve and is rotatable.

The bus bar includes a bus bar I and a bus bar II arranged up and down. There are multiple rubber cable lead-out devices. The battery cavity, the control cavity and the wiring cavity adopt the structural form of steel plate welding, and the control cavity and the wiring cavity are arranged on the same side of the battery cavity.

Beneficial effect and advantage of the utility model are:

1. The utility model is compact in structure, light in weight, easy to operate, easy to install and carry. According to different power consumption, it can be combined in series and parallel in any way, which is suitable for use in the narrow space of safety-avoiding facilities.

2. The box body of the utility model has good safety and high explosion-proof performance. The explosion-proof box is designed as a 3-chamber structure, each chamber is an explosion-proof chamber, there are no other electronic devices in the battery chamber except for temperature detection, and only wiring terminals are arranged in the wiring chamber, which meets the requirements of relevant standards for mining lithium battery applications.

3. The utility model is easy to use and convenient for underground maintenance. When problems are encountered during use, the circuit connection can be disconnected through the explosion-proof switch in the control chamber, which is convenient for fault inspection and replacement of parts.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the utility model explosion-proof case top view structural diagram;

Fig. 3 is a partial assembly drawing of the flameproof switch of the present invention;

Fig. 4 is a perspective view of the explosion-proof box after removing the end cover of the utility model.

Among them: 1 is the handle, 2 is the cover of the battery chamber, 3 is the cover of the wiring chamber, 4 is the cover of the control chamber, 5 is the battery chamber, 6 is the control chamber, 7 is the busbar I, 8 is the busbar II, 9 is the control chamber, 10 is the explosion-proof switch, 11 is the switch bracket, 12 is the flameproof copper sleeve, 13 is the intermediate shaft, 14 is the knob, 15 is the connection bar, 16 is the cavity-through terminal I, 16' is the cavity-through terminal II , 17 is a reinforcing rib, 18 is a rubber cable lead-in device, 19 is a controller, and 20 is a battery module.

Detailed ways

Below in conjunction with accompanying drawing and the utility model is described in further detail.

As shown in Figure 1-4, the utility model is installed in the underground refuge cabin or refuge chamber, including the battery chamber 5, the control chamber 6 and the wiring chamber 9, and the battery chamber 5, the control chamber 6 and the wiring chamber 9 are welded by steel plates In the structural form, the control cavity 6 and the wiring cavity 9 are arranged on the same side of the battery cavity 5 . The battery cavity 5 , the control cavity 6 and the wiring cavity 9 are respectively provided with a battery cavity cover 2 , a control cavity cover 4 and a wiring cavity cover 3 . The side wall of the battery cavity 5 is provided with a cavity-through terminal I 16 for introducing the signal cable and the power cable of the battery module 20 into the control cavity 6, and the side wall of the control cavity 6 is provided with an external knob 14. The connected explosion-proof switch 10 and the through-cavity terminal II 16' for introducing signal cables and power cables into the wiring cavity 9, the bottom of the control cavity 6 is provided with a threaded hole for fixing the controller 19, and the wiring cavity 9 There is a bus bar inside, and the bus bar includes bus bar I 7 and bus bar II 8 arranged on the upper and lower sides. A plurality of rubber cable lead-in devices 18 are provided on the outer wall of the wiring cavity 9, and the rubber cable lead-in devices 18 are used for leading in and out of internal and external cables. The battery module 20 and the controller 19 are respectively located in the battery cavity 5 and the control cavity 6, and the cavity-through terminal I 16 and the cavity-through terminal II 16' realize cable transfer between the cavities.

Connecting strips 15 for installing battery modules 20 are provided on the inner walls of opposite sides of the battery cavity 5 . A handle 1 is welded on the battery cavity cover 2 , and a reinforcing rib 17 is welded on the bottom of the battery cavity 5 .

As shown in Figure 3, the explosion-proof switch 10 is installed on the switch bracket 11, and the switch bracket 11 is arranged on the side wall of the control chamber 6, and the rotating shaft of the explosion-proof switch 10 is connected to the control chamber 6 through the intermediate shaft 13. The outer knob 14 is connected. The side wall of the control chamber 6 is provided with a flameproof copper sleeve 12, and the intermediate shaft 13 is inserted in the flameproof copper sleeve 12 and is rotatable. The operator can control the on-off of the power supply through the knob 14 outside.

The using method of the present utility model is:

1. Fix the battery module 20 on the connecting strip 15 in the battery cavity 5, connect the power line and the detection line passing through the cavity terminal I 16, and after wiping the flameproof and sealing surface, connect the battery cavity 5 to the battery cavity cover Plate 2 is fastened with bolts.

2. After connecting the power line drawn out through the cavity-through terminal 16 with the flameproof switch 10, lead it into the wiring cavity 9 from the cavity-through terminal II 16' on the inner wall; install the controller 19 at the bottom of the control cavity 6, and then connect the battery cavity 5 The detection line that introduces, the cable that needs to be introduced into the wiring cavity 9 is inserted through the cavity-through terminal II 16', and finally the control cavity cover plate 4 is installed and fastened.

3. Before going down the well, turn the explosion-proof switch 10 to the off position, and limit the open circuit voltage of the power supply in the switch cavity; after going down the well, open the wiring cavity 9, and connect the corresponding cables through the rubber cable lead-out device 18 to the wiring cavity on the rear cover The cover plate 3, the power supply enters the working state after the explosion-proof switch 10 is connected.

4. During the maintenance period, when a fault alarm occurs during power supply operation, disconnect the explosion-proof switch 10, open the wiring chamber cover 3 or the control chamber cover 4, and check the cables or replace the electrical control components according to the alarm prompts.

In this embodiment, the rubber cable lead-in device 18 is a commercially available product, purchased from Wuxi Meike Electric Co., Ltd., and the model is A1.

Claims (8)

1. a urgent danger prevention facility lithium secondary power supply for subsequent use explosion-proof tank, be arranged in down-hole refuge cabin or refuge chamber, it is characterized in that: comprise battery cavities (5), control chamber (6) and wire connection cavity (9), described battery cavities (5), control chamber (6) and wire connection cavity (9) are respectively equipped with battery cavities cover plate (2), control chamber cover plate (4) and wire connection cavity cover plate (3), the sidewall of described battery cavities (5) is provided with wears chamber terminal I (16) for the signal cable of battery module (20) and power cable being introduced in control chamber (6), the sidewall of described control chamber (6) is provided with the explosion-proof switch (10) that is connected with external knob (14) and wears chamber terminal II (16 ') for what signal cable and power cable are introduced wire connection cavity (9), the bottom of control chamber (6) is provided with the screwed hole for static controller (19), described wire connection cavity is provided with bus-bar in (9), the outer wall of wire connection cavity (9) is provided with rubber cable ejector (18).

2. by urgent danger prevention facility according to claim 1 lithium secondary power supply for subsequent use explosion-proof tank, it is characterized in that: described battery cavities (5) relatively both sides inwall is provided with the intercell connector (15) for installing battery module (20).

3. by urgent danger prevention facility according to claim 1 lithium secondary power supply for subsequent use explosion-proof tank, it is characterized in that: described battery cavities cover plate (2) is welded with handle (1), the bottom of described battery cavities (5) is welded with reinforcement (17).

4. by urgent danger prevention facility according to claim 1 lithium secondary power supply for subsequent use explosion-proof tank, it is characterized in that: described explosion-proof switch (10) is arranged on switch bracket (11), described switch bracket (11) is arranged on the sidewall of control chamber (6), the rotating shaft of described explosion-proof switch (10) is connected by the knob (14) of jack shaft (13) with control chamber (6) outside, and described jack shaft (13) is rotatably installed on the sidewall of control chamber (6).

5. by urgent danger prevention facility according to claim 4 lithium secondary power supply for subsequent use explosion-proof tank, it is characterized in that: the sidewall of described control chamber (6) is provided with flame proof copper sheathing (12), it is interior and rotatable that described jack shaft (13) is inserted in flame proof copper sheathing (12).

6., by urgent danger prevention facility according to claim 1 lithium secondary power supply for subsequent use explosion-proof tank, it is characterized in that: described bus-bar comprises bus-bar I (7) and the bus-bar II (8) of upper and lower setting.

7., by urgent danger prevention facility according to claim 1 lithium secondary power supply for subsequent use explosion-proof tank, it is characterized in that: described rubber cable ejector (18) is for multiple.

8. by the urgent danger prevention facility lithium secondary power supply for subsequent use explosion-proof tank described in any one of claim 1-7, it is characterized in that: described battery cavities (5), control chamber (6) and wire connection cavity (9) adopt the version of Plate Welding, and described control chamber (6) and wire connection cavity (9) are arranged at the homonymy of battery cavities (5).