Emergency protection device for mining storage battery

Abstract

The invention provides an emergency protection device for a mine storage battery, and relates to the field of mine storage battery cleaning protection. The emergency protection device for the mine storage battery comprises a storage battery box and further comprises a plurality of groups of self-cleaning battery frames, the self-cleaning battery frames are distributed up and down, the distances between the groups are the same, the groups are all provided with air gaps with the same height, and the multiple groups of self-cleaning battery frames are all located in the storage battery box. An air inlet end and an air outlet end are arranged at the two ends of each self-cleaning type battery frame, and a reversing box is arranged between the air inlet end of any self-cleaning type battery frame and the air outlet end of the adjacent self-cleaning type battery frame above the self-cleaning type battery frame. According to the emergency protection device for the mine storage battery, the self-cleaning battery frame and the middle cover are arranged, so that the storage battery can be cooled by utilizing circulating air with pulverized coal, electrodes of the storage battery can be continuously cleaned, the pulverized coal can be separated, and high-power energy storage equipment can be safely used underground.

Description

Technical Field

[0001] The present invention relates to the field of clean protection of mine-used storage batteries, and particularly to an emergency protection device for mine-used storage batteries. Background Art

[0002] As a rechargeable battery, lithium-ion storage batteries are widely used in various fields due to their advantages such as high safety, fast and safe charging and discharging, small size, light weight, and high energy. At present, most mine-used equipment also uses lithium-ion storage batteries for power supply. With the continuous progress of technology, polymer lithium-ion storage batteries are widely used in various equipment and tools in mine scenarios. It adopts lithium-ion battery technology and uses polymer electrolytes to store and release electrical energy, with advantages such as high energy density, long life, and light weight.

[0003] In order to provide a relatively stable working environment for mine-used lithium-ion storage batteries, currently, mine-used lithium-ion storage batteries are usually placed in a special power supply box. However, traditional power supply boxes usually have a simple structure and relatively single functions, and can only meet the requirement of providing a storage space for lithium-ion storage batteries. There are a large amount of dust and moisture in the mine environment. The contact between moisture and dust and the storage battery will cause corrosion and wear inside the equipment, which has a great impact on the normal operation of the storage battery.

[0004] Due to the particularity of the mine environment, lithium-ion storage batteries are required to be made into safe power sources, and it is required that no fire or explosion occurs in extreme cases. Existing lithium-ion storage batteries rarely have safety problems such as fire and explosion under extreme conditions such as overcharging, over-discharging, extrusion, collision, and heating. However, their temperature will increase during high-power charging and discharging. In the externally placed battery box, there is generally a liquid cooler or a cooling fan. However, in the mine, there is a lot of coal dust. If only cold air circulation is used to dissipate heat from the battery pack, a part of the coal slag dust will enter the battery box, thereby polluting the battery electrodes. Moreover, coal powder is conductive, so there will be certain potential safety hazards when it enters the battery pack. However, it is necessary to install a wind circulation radiator. Therefore, how to ensure that coal powder does not affect the heat dissipation of the battery pack is an urgent problem to be solved now. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an emergency protection device for mine-used storage batteries, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized by the following technical solutions: An emergency protection device for a mine-used storage battery, including a storage battery box, further including a self-cleaning battery frame. There are multiple groups of self-cleaning battery frames distributed up and down, and the distance between each group is the same. There are air gaps of the same height. Multiple groups of self-cleaning battery frames are all inside the storage battery box. The two ends of the self-cleaning battery frame are set as an air inlet end and an air outlet end. There is a reversing box between the air inlet end of any self-cleaning battery frame and the air outlet end of the adjacent self-cleaning battery frame above it. The two are connected through the cavity inside the reversing box. The reversing box is fixedly connected to one end of the two self-cleaning battery frames. The air inlet end of the topmost self-cleaning battery frame and the air outlet end of the bottommost self-cleaning battery frame are both fixedly installed with single air boxes and are communicated with the cavity inside the single air boxes. The outer ends of the two single air boxes are both installed with circulating air pipes. One end of the circulating air pipe is communicated with the inside of the single air box, and the other end is outside the storage battery box. The circulating air pipe is used to act on the self-cleaning battery frame with cold air from the outside and cool it.

[0007] The self-cleaning battery frame includes an outer frame and a battery box. The outer frame is a rectangular frame structure. There are multiple groups of slide rails on its inner bottom wall. Each group of slide rails corresponds to a battery box. The battery box is suspended inside the outer frame, and its bottom does not contact the inner bottom wall of the outer frame. The battery box is slidably connected to the slide rails. Two stepping tracks are fixed on the inner top wall of the outer frame. The output ends of the stepping tracks are installed with driving blocks that can move autonomously. A cleaning component is commonly installed on the two driving blocks. When the cleaning component moves along the stepping track, it can clean the coal powder at the battery electrodes in combination with the cooling air.

[0008] Preferably, there is also an intermediate cover inside the storage battery box. The self-cleaning battery frame, the single air box, and the reversing box are all inside the intermediate cover. The intermediate cover is fixed inside the storage battery box. The rear end of the intermediate cover is closed. The inner end of the intermediate cover is fixed to the outer walls of the reversing box and the single air box. There is an ash channel between the intermediate cover and the reversing box. There is an ash receiving layer between the intermediate cover and the bottommost self-cleaning battery frame. One end of the air gap close to the reversing box is closed, and the other end is communicated with the internal space of the intermediate cover. An inspection strip is fixedly installed on the front of the air gap. There is an opening at the front end of the intermediate cover. The inner circle of the opening corresponds to multiple self-cleaning battery frames. A closing door is installed on the storage battery box corresponding to the opening. The closing door is used to seal the opening.

[0009] Preferably, the front end of the outer frame corresponds to the opening, and the rear end is hermetically fixed to the intermediate cover. There are several downward-penetrating ash holes on the inner bottom wall of the slide rail. The ash holes are communicated with the air gap. For the air gap at the bottom of any outer frame, its opening end is opposite to the air flow direction.

[0010] Preferably, both the air inlet end and the air outlet end include two groups of air injection pipes up and down. The air injection pipes at the air inlet end are ventilation structures. The upper group of air injection pipes at the air outlet end are closed structures, and the lower group of air injection pipes are ventilation structures.

[0011] Preferably, a storage battery is installed inside the battery box, and two square tubes are fixed to the bottom of the battery box. The square tubes are parallel to the air flow direction. The square tubes are mounted on the inner bottom wall of the outer frame and are restricted from sliding back and forth by the slide rails.

[0012] Preferably, the cleaning assembly includes a fixing plate, an elastic plate and a long hair brush. The fixing plate is fixed to the two driving blocks. One end of the elastic plate is connected to the fixing plate, and the other end is provided with a long hair brush. The elastic plate urges the long hair brush to contact the top of the storage battery.

[0013] Preferably, a rubber gasket is fixedly installed on the outer ring of the front surface of the middle cover where it is open. The closing door cooperates with the rubber gasket to seal the opening.

[0014] Preferably, an inclined chamfer is provided at one end of the inner wall of the commutation box away from the outer frame. The inclined chamfer is located at the upper and lower ends of the inner wall of the commutation box. The height of the single air box is half of the height of the commutation box.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. For this emergency protection device for mine-used storage batteries, by setting the self-cleaning battery frame and the middle cover, the air flow in the circulating air pipe will first pass through the intake end, pass through multiple battery boxes, and then be discharged from the exhaust end. Since square tubes are provided at the bottom of the battery box, the square tubes at the intake end are fully open, and only the bottom of the square tubes at the exhaust end is open. Therefore, the air flow entering the bottom of the self-cleaning battery frame will be discharged obliquely, and the coal dust it carries will also fall downward. The coal dust falling on the electrode will leave the electrode under the action of the cleaning assembly and fall to the inner bottom wall of the outer frame. With the action of the air flow, the coal dust falling to the bottom will enter the air gap through the ash discharge hole and can fall into the ash receiving layer along the ash channel. At this time, the coal dust is no longer affected by the air flow. Therefore, it can not only use the circulating air with coal dust to cool the storage battery, but also continuously clean the electrodes of the storage battery and separate the coal dust. Thus, it can be ensured to safely use high-power energy storage equipment underground.

[0016] 2. For this emergency protection device for mine-used storage batteries, by setting the self-cleaning battery frame and the commutation box, when the circulating air enters, it will circulate and take away the hot air flow in each self-cleaning battery frame from top to bottom. When the temperature of the storage battery reaches the alarm value during operation, the circulating air pipe circulates a large amount of cold air to quickly cool it. The overall downward pressure of the heat will also cause the coal dust to settle.

[0017] 3. For this emergency protection device for mine-used storage batteries, by setting the battery box, since the square tubes at the bottom of the battery box can slide relative to the slide rails, when installing the battery, just open the closing door and pull out the battery box, and it is more convenient for wiring and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a separated structural diagram of the present invention; Figure 3 is a split diagram of a partial structure of the present invention; Figure 4 is a split diagram of a self-cleaning battery frame of the present invention; Figure 5 is the present invention Figure 4 an enlarged view of a local area in; Figure 6 is a structural diagram of a self-cleaning battery frame and an intermediate cover of the present invention; Figure 7 is the present invention Figure 6 an enlarged view of a local area in; Figure 8 is a structural diagram of a self-cleaning battery frame and a commutation box of the present invention; Figure 9 is a structural diagram of a self-cleaning battery frame of the present invention; Figure 10 is the present invention Figure 9 an enlarged view of a local area in.

[0019] In the figure: 1. Battery box; 2. Self-cleaning battery frame; 201. Outer frame; 202. Battery box; 203. Slide rail; 204. Stepping track; 205. Cleaning assembly; 2051. Fixed plate; 2052. Elastic plate; 2053. Long hair brush; 206. Ash discharge hole; 207. Square pipe; 3. Air gap; 4. Intake end; 5. Exhaust end; 6. Commutation box; 7. Single air box; 8. Circulation air pipe; 9. Intermediate cover; 10. Ash channel; 11. Ash collecting layer; 12. Maintenance strip; 13. Opening; 14. Sealing door; 15. Jet pipe; 16. Rubber gasket. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0021] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0022] In this application, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0024] As Figure 1-10 shown, an emergency protection device for a mine-used storage battery includes a storage battery box 1, and also includes a self-cleaning battery frame 2. There are multiple groups of self-cleaning battery frames 2 distributed up and down, and the distance between each group is the same. There are air gaps 3 of the same height. Multiple groups of self-cleaning battery frames 2 are all inside the storage battery box 1. The two ends of the self-cleaning battery frame 2 are set as an air inlet end 4 and an air outlet end 5. There is a reversing box 6 between the air inlet end 4 of any one self-cleaning battery frame 2 and the air outlet end 5 of the adjacent self-cleaning battery frame 2 above it. The two are communicated through the cavity inside the reversing box 6. The reversing box 6 is fixedly connected to one end of the two self-cleaning battery frames 2. The air inlet end 4 of the uppermost self-cleaning battery frame 2 and the air outlet end 5 of the lowermost self-cleaning battery frame 2 are both fixedly installed with single air boxes 7 and communicated with the cavity inside the single air boxes 7. The outer ends of the two single air boxes 7 are both installed with circulating air pipes 8. One end of the circulating air pipe 8 is communicated with the inside of the single air box 7, and the other end is outside the storage battery box 1. The circulating air pipe 8 is used to apply the cold air outside to the self-cleaning battery frame 2 and cool it.

[0025] The self-cleaning battery frame 2 includes an outer frame 201 and a battery box 202. The outer frame 201 is a rectangular frame structure, and its inner bottom wall is provided with multiple groups of slide rails 203. Each group of slide rails 203 corresponds to a battery box 202. The battery box 202 is suspended inside the outer frame 201, and its bottom does not contact the inner bottom wall of the outer frame 201. The battery box 202 is slidably connected to the slide rails 203. Two stepping tracks 204 are fixed to the inner top wall of the outer frame 201. The output ends of the stepping tracks 204 are equipped with driving blocks that can move autonomously. A cleaning component 205 is commonly installed on the two driving blocks. When the cleaning component 205 moves along the stepping tracks 204, it can clean the pulverized coal at the battery electrodes in combination with the cooling air.

[0026] The storage battery box 1 can be directly arranged underground and is suitable for application scenarios such as underground lighting and other mine-used 127V and 220V AC uninterrupted power supplies. Moreover, it is suitable for dangerous environments with explosive gases such as gas and coal dust in coal mines. A display panel is installed on the front of the storage battery box 1, and parameters such as current, voltage, and remaining battery capacity during operation can be observed through the display panel. Also, the parameters of the internal storage battery can be observed through the display panel during charging. Temperature and humidity sensors, gas detectors, and other sensors are also installed inside the storage battery box 1.

[0027] When the storage battery box 1 is arranged underground, the circulating air pipe 8 is connected to a blower. In order to cope with the complex dust environment underground, a cyclone separator, an air filter, felt, or other dust-isolating filtering equipment can be installed at the air inlet end of the blower to prevent dust from entering the storage battery box 1. However, when used for high-temperature emergency protection, it is still impossible to avoid coal ash from entering the storage battery box 1. Therefore, it is necessary to separate the coal ash from the air flow to prevent the coal ash from falling on the electrodes and causing danger. The control circuit of the blower is connected to the storage battery box 1. When the temperature sensor inside the storage battery box 1 detects high temperature and issues an alarm, its internal processing chip will send an electrical signal to the control circuit board of the blower, and then the blower will be started. The operating power of the blower can be controlled according to the temperature measured by the temperature sensor inside the storage battery box 1.

[0028] Multiple battery boxes 202 are arranged inside an outer frame 201, and the battery boxes 202 can also be arranged in multiple rows. The size of the outer frame 201 can be customized according to the actual underground requirements. When more storage batteries need to be arranged, the battery boxes 202 can be arranged in a matrix inside. The storage batteries can be directly placed into the battery boxes 202 and are not easily removed during collision or shaking. Due to the installation of the slide rails 203, the battery boxes 202 can be pulled during wiring. When arranging the storage batteries, the electrodes of each storage battery need to face the same direction, and the electrodes need to face upward to cooperate with the cleaning component 205.

[0029] In order to separate and collect coal ash, an intermediate cover 9 is also provided in the battery box 1. The self-cleaning battery frame 2, the single air box 7, and the commutation box 6 are all located inside the intermediate cover 9. The intermediate cover 9 is fixed inside the battery box 1. The rear end of the intermediate cover 9 is closed. The inner end of the intermediate cover 9 is fixed to the outer walls of the commutation box 6 and the single air box 7. There is an ash duct 10 between the intermediate cover 9 and the commutation box 6, and there is an ash receiving layer 11 between the intermediate cover 9 and the bottommost self-cleaning battery frame 2. One end of the air gap 3 close to the commutation box 6 is closed, and the other end is communicated with the internal space of the intermediate cover 9. A maintenance strip 12 is fixedly installed on the front surface of the air gap 3. An opening 13 is provided at the front end of the intermediate cover 9. The inner circle of the opening 13 corresponds to a plurality of self-cleaning battery frames 2. A closing door 14 is installed on the battery box 1 corresponding to the opening 13. The closing door 14 is used to seal the opening 13.

[0030] The intermediate cover 9 is a wrapped metal cover. The intermediate cover 9 is fixed inside the battery box 1. The ash duct 10 and the air gap 3 only occupy a relatively narrow area, which is much smaller than the space inside the commutation box 6. The maintenance strip 12 is used to seal the air gap 3 during installation and can observe the accumulation degree of coal ash in the air gap 3 when opened, so that ash cleaning can be realized manually. The battery box 202 can be removed from the opening 13 of the intermediate cover 9, and technicians can perform a series of electrical inspections such as wiring through the position of the opening 13.

[0031] The front end of the outer frame 201 corresponds to the opening 13, and the rear end is hermetically fixed to the intermediate cover 9. A plurality of downwardly penetrating lower ash holes 206 are provided on the inner bottom wall of the slide rail 203. The lower ash holes 206 are communicated with the air gap 3. For any air gap 3 at the bottom of an outer frame 201, its open end is opposite to the air flow direction.

[0032] The ash discharge holes 206 are provided in the slide rails 203, and multiple groups of ash discharge holes 206 are arranged in a single slide rail 203. Similarly, the number of ash discharge holes 206 is set according to the air flow rate to prevent the air flow from passing through the ash discharge holes 206, which may affect the subsequent cooling of the battery box 202 inside the outer frame 201. When the air flow flows in an outer frame 201 and the area narrows, the pulverized coal carried by it will fall downward. After falling, the pulverized coal will accumulate at the bottom of the storage battery and on the inner bottom wall of the outer frame 201. Since the inner bottom wall is provided with slide rails 203, the slide rails 203 can block the pulverized coal when the air flow passes through. Under the action of a part of the air flow, the excess pulverized coal will fall from the ash discharge holes 206 into the air gap 3. In this process, only a very small amount of air flow is used to discharge the pulverized coal. Since the opening end of the air gap 3 is opposite to the air flow direction and the coal ash has a certain weight, it is difficult for the air flow to generate a siphon effect on the air gap 3. Therefore, the falling coal ash will gradually enter the air gap 3 until it falls from the ash duct 10 into the ash receiving layer 11. Both the air inlet end 4 and the air outlet end 5 include two sets of air spray pipes 15 up and down. The air spray pipes 15 at the air inlet end 4 are ventilation structures, the upper group of air spray pipes 15 at the air outlet end 5 are closed structures, and the lower group of air spray pipes 15 are ventilation structures.

[0033] The air inlet passes through all the air spray pipes 15, while the air outlet can only pass through the air spray pipes 15 at the bottom. Therefore, when the air flow passes through an outer frame 201, it will fill the outer frame 201 before being discharged. Therefore, the coal ash it carries will be discharged from the ash discharge holes 206 to a certain extent under the condition of only occupying a relatively small amount of air flow. The closed and open states of the air spray pipes 15 are realized by a threaded plug. This plug can be removed or partially repositioned according to the actual operating conditions, and the closed states of the air spray pipes 15 at the air inlet end 4 and the air outlet end 5 can also be swapped to cope with various air-blowing and cooling situations.

[0034] A storage battery is installed inside the battery box 202. Two square pipes 207 are fixed to the bottom of the battery box 202. The square pipes 207 are parallel to the air flow direction. The square pipes 207 are mounted on the inner bottom wall of the outer frame 201 and are restricted from sliding back and forth by the slide rails 203.

[0035] Part of the battery box 202 is made of aluminum alloy, and the remaining part is injection-molded. Its size matches the sizes of most single storage batteries in the prior art. When the battery is placed inside the battery box 202, it is not easy to come out and is stably placed. The square pipe 07 is an aluminum alloy pipe, which can not only conduct heat but also has a certain supporting strength.

[0036] The cleaning assembly 205 includes a fixing plate 2051, an elastic plate 2052 and a long-haired brush 2053. The fixing plate 2051 is fixed to two driving blocks. One end of the elastic plate 2052 is connected to the fixing plate 2051, and the other end is installed with the long-haired brush 2053. The elastic plate 2052 urges the long-haired brush 2053 to contact the top of the storage battery.

[0037] The driving block is provided with a motor that cooperates with the stepping track 204 and can move freely on the stepping track 204. The long hair brush 2053 contacts the electrode under the action of the elastic plate 2052. When turning back, the long hair brush 2053 can change its direction, and the elastic plate 2052 can play the above role.

[0038] A rubber gasket 16 is fixedly installed on the front of the middle cover 9 at the outer ring of the opening 13. The closing door 14 cooperates with the rubber gasket 16 to seal the opening.

[0039] When closing the closing door 14, the closing door cooperates with the rubber gasket 16 to prevent air leakage from the position of the closing door 14.

[0040] The inner wall of the commutation box 6 is provided with an inclined chamfer at one end away from the outer frame 201. The inclined chamfer is located at the upper and lower ends of the inner wall of the commutation box 6. The height of the single air box 7 is half of the height of the commutation box 6.

[0041] In use, the battery box 1 is configured as a whole to perform a series of functions such as underground lighting in the mine, and the main body can also be charged underground. When performing high-power charging and discharging, a large amount of heat will be generated inside the battery box 1 by the battery. Since the battery is enclosed in the battery box 1 to avoid underground collisions, it is difficult for the heat to directly discharge from the battery box 1 by itself. Therefore, it is necessary to use the circulation air pipe 8 to connect to an external blower. When the blower is in use, it can also be connected to a cyclone separation device or an air filter for pretreatment. During daily small-scale use, the internal temperature rise is not obvious, and the circulation air pipe 8 can not perform circulating air flow to reduce the accumulation of internal dust. When the circulation air pipe 8 needs to be used, the external air flow brought by the circulation air pipe 8 first enters the first self-cleaning battery frame 2 through the single air box 7. The air flow flows inside the outer frame 201 and passes through the electrodes and the bottom of the battery box 202. Since the square pipe 207 is installed at the bottom, it does not affect the flow of the air flow. The air flow can pass through the gaps between the batteries. Since the positions of the jet pipes 15 at the air inlet end 4 and the air outlet end 5 are different, the air entering will gradually tilt downward and then discharge. Therefore, the cold air from top to bottom and the cold air in the gradually shrinking area can press out all the heat at one time. However, it is inevitable to carry some coal dust during the process of taking away heat during underground operation. The coal dust and cold air will accumulate on the electrodes when cooling the battery. Therefore, the cleaning component 205 operates periodically and cooperates with the flow of the air flow to clean the electrodes, avoiding accidents caused by the conductivity of coal dust leading to internal short circuits. When the air flow flows inside an outer frame 201 and shrinks in area, the coal dust it carries will fall downward. After falling, the coal dust will accumulate at the bottom of the battery and on the inner bottom wall of the outer frame 201. Since the slide rail 203 is provided on the inner bottom wall, the slide rail 203 can cut off the coal dust when the air flow passes through. Under the action of a part of the air flow, the excess coal dust will fall into the air gap 3 from the ash discharge hole 206. During this process, only a very small amount of air flow is used to discharge the coal dust. Since the opening end of the air gap 3 is opposite to the air flow direction and the coal ash also has a certain weight, it is difficult for the air flow to generate a siphon effect on the air gap 3. Therefore, the falling coal ash will gradually enter the air gap 3 until it falls into the ash layer 11 from the ash channel 10.

[0042] Moreover, during maintenance or wiring, only the closing door 14 needs to be opened. After opening the closing door 14, any battery box 202 can be separately pulled out from the opening 13. Since the square pipe 207 at the bottom is in a sliding connection state with the slide rail 203, the extraction is very smooth, and the battery can be directly taken out from the battery box 202.

[0043] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0044] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An emergency protection device for a mine-used storage battery, comprising a storage battery box (1), characterized in that: It also includes a self-cleaning battery frame (2). The self-cleaning battery frames (2) are arranged in multiple groups distributed vertically, and the distance between each group is the same. Each group is provided with an air gap (3) of the same height. The multiple groups of self-cleaning battery frames (2) are all located inside the battery box (1). The two ends of the self-cleaning battery frame (2) are respectively an air inlet end (4) and an air outlet end (5). A reversing box (6) is provided between the air inlet end (4) of any one self-cleaning battery frame (2) and the air outlet end (5) of the adjacent self-cleaning battery frame (2) above it. The two are connected through the cavity inside the reversing box (6). The reversing box (6) is fixedly connected to one end of the two self-cleaning battery frames (2). Single air boxes (7) are fixedly installed at the air inlet end (4) of the uppermost self-cleaning battery frame (2) and the air outlet end (5) of the lowermost self-cleaning battery frame (2) and are connected to the internal cavity of the single air box (7). Circulating air pipes (8) are installed at the outer ends of the two single air boxes (7). One end of the circulating air pipe (8) is connected to the inside of the single air box (7), and the other end is outside the battery box (1). The circulating air pipe (8) is used to apply the cold air outside to the self-cleaning battery frame (2) and cool it.

2. The emergency protection device for mining storage batteries according to claim 1, characterized in that: The self-cleaning battery frame (2) includes an outer frame (201) and a battery box (202). The outer frame (201) is a rectangular frame structure. Multiple groups of slide rails (203) are provided on its inner bottom wall. Each group of slide rails (203) corresponds to a battery box (202). The battery box (202) is suspended inside the outer frame (201), and its bottom does not contact the inner bottom wall of the outer frame (201). The battery box (202) is slidably connected to the slide rails (203). Two stepping tracks (204) are fixed on the inner top wall of the outer frame (201). The output ends of the stepping tracks (204) are equipped with drive blocks that can move independently. A cleaning component (205) is jointly installed on the two drive blocks. When the cleaning component (205) moves along the stepping tracks (204), it can clean the pulverized coal at the battery electrodes in combination with the cooling air.

3. The emergency protection device for mine-used storage batteries according to claim 2, characterized in that: An intermediate cover (9) is also provided inside the battery box (1). The self-cleaning battery frame (2), the single air box (7), and the reversing box (6) are all located inside the intermediate cover (9). The intermediate cover (9) is fixed inside the battery box (1). The rear end of the intermediate cover (9) is closed. The inner end of the intermediate cover (9) is fixed to the outer walls of the reversing box (6) and the single air box (7). There is an ash channel (10) between the intermediate cover (9) and the reversing box (6). There is an ash receiving layer (11) between the intermediate cover (9) and the lowermost self-cleaning battery frame (2). The ash receiving layer (11) is connected to the outside. One end of the air gap (3) close to the reversing box (6) is closed, and the other end is connected to the internal space of the intermediate cover (9). An inspection strip (12) is fixedly installed on the front surface of the air gap (3). An opening (13) is provided at the front end of the intermediate cover (9). The inner circle of the opening (13) corresponds to multiple self-cleaning battery frames (2). A closing door (14) is installed on the battery box (1) corresponding to the opening (13). The closing door (14) is used to seal the opening (13).

4. The emergency protection device for mine-used storage batteries according to claim 3, wherein: The front end of the outer frame (201) corresponds to the opening (13), and the rear end is fixedly sealed with the middle cover (9). A plurality of downwardly penetrating ash holes (206) are provided on the inner bottom wall of the slide rail (203), and the ash holes (206) communicate with the air gap (3). The opening end of the air gap (3) at the bottom of any outer frame (201) is opposite to the air flow direction.

5. The emergency protection device for mine-used storage batteries according to claim 1, wherein: Both the air inlet end (4) and the air outlet end (5) include two sets of spray pipes (15) up and down. The spray pipes (15) at the air inlet end (4) are of a ventilation structure, the upper set of spray pipes (15) at the air outlet end (5) is of a closed structure, and the lower set of spray pipes (15) is of a ventilation structure.

6. The emergency protection device for mine-used storage batteries according to claim 4, characterized in that: A storage battery is installed inside the battery box (202). Two square pipes (207) are fixed to the bottom of the battery box (202). The square pipes (207) are parallel to the air flow direction, are mounted on the inner bottom wall of the outer frame (201), and are restricted from sliding back and forth by the slide rail (203).

7. The emergency protection device for mine-used storage batteries according to claim 6, characterized in that: The cleaning assembly (205) includes a fixing plate (2051), an elastic plate (2052) and a long hair brush (2053). The fixing plate (2051) is fixed to the two driving blocks. One end of the elastic plate (2052) is connected to the fixing plate (2051), and the other end is installed with the long hair brush (2053). The elastic plate (2052) urges the long hair brush (2053) to contact the top of the storage battery.

8. The emergency protection device for mine-used storage batteries according to claim 7, wherein: A rubber gasket (16) is fixedly installed on the front of the middle cover (9) at the outer circle of the opening (13). The closing door (14) cooperates with the rubber gasket (16) to seal the opening.

9. The emergency protection device for mine-used storage batteries according to claim 8, wherein: An inclined chamfer is provided at one end of the inner wall of the commutation box (6) away from the outer frame (201). The inclined chamfer is located at the upper and lower ends of the inner wall of the commutation box (6). The height of the single air box (7) is half of the height of the commutation box (6).

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