Mining flame-proof and intrinsic safety type stable power supply device

Abstract

The utility model provides a mining flame-proof and intrinsic safety type stable power supply device, and belongs to the technical field of mining power supply. The mining flameproof and intrinsic safety type stable power supply device comprises a power supply input module, a voltage stabilization module, an intrinsic safety module, a control module, an anti-interference module, a remote communication module, a selective switch module or module and a signal enhancement module, the input end of the power input module is connected with an external power supply, and the output end is connected with the input end of the voltage stabilizing module; the output end of the voltage stabilizing module is connected with the input end of the intrinsic safety module; the control module is respectively connected with the output end of the intrinsic safety module, the anti-interference module and the input end of the remote communication module; the output end of the remote communication module is connected with the first end of the selective switch module; the second end of the selection switch module is connected with the input end of the signal enhancement module; the third end of the selection switch module is used for communicating with a terminal. The problem of insufficient mining power supply stability and safety can be solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of mine power supply, and in particular to a flameproof and intrinsically safe stable power supply device for mines. Background Art

[0002] Mining operations rely on electricity. Tunneling, mining, transportation, ventilation, drainage, and other processes all require power from electrical equipment. Furthermore, underground operating environments like coal mines are complex and volatile, with the presence of explosive gases and dust, placing extremely high demands on the safety performance of electrical equipment. In such environments, traditional power supply equipment often fails to meet safety requirements, necessitating a stable and secure mine power supply. Utility Model Content

[0003] The embodiments of the present disclosure provide a flameproof and intrinsically safe stable power supply device for use in mines, so as to solve the problem of insufficient stability and safety of power supply in mines.

[0004] The present disclosure provides a flameproof and intrinsically safe stable power supply device for mining, comprising:

[0005] Power input module, voltage stabilization module, intrinsic safety module, control module, anti-interference module 105, remote communication module, selection switch module, or module and signal enhancement module;

[0006] The input end of the power input module is used to connect to the external power supply, and the output end is connected to the input end of the voltage regulator module;

[0007] The output end of the voltage stabilizing module is connected to the input end of the intrinsically safe module;

[0008] The control module is respectively connected to the output end of the intrinsic safety module, the input end of the anti-interference module and the remote communication module;

[0009] The output terminal of the remote communication module is connected to the first terminal of the selection switch module;

[0010] The second end of the selection switch module is connected to the input end of the signal enhancement module;

[0011] The third terminal of the selection switch module is used for communicating with the terminal;

[0012] The output end of the signal enhancement module is used to communicate with the terminal;

[0013] The control end of the selection switch module is connected to the output end of the OR module;

[0014] The first input terminal of the module is used to receive the humidity signal;

[0015] The second input terminal of the or module is used to receive a dust concentration signal;

[0016] The intrinsically safe module is configured to limit the supply voltage and supply current;

[0017] The anti-interference module is configured to block external electromagnetic interference.

[0018] In an exemplary embodiment of the present disclosure, a flameproof and intrinsically safe stable power supply device for mining further includes a first comparator, a second comparator, a humidity detection module, and a dust detection module;

[0019] The humidity detection module is connected to the non-inverting input terminal of the first comparator;

[0020] The inverting input terminal of the first comparator is used to receive the humidity reference value, and the output terminal is connected to the first input terminal of the OR module;

[0021] The dust detection module is connected to the non-inverting input terminal of the second comparator;

[0022] The inverting input terminal of the second comparator is used to receive the dust concentration reference value, and the output terminal is connected to the second input terminal of the OR module.

[0023] In an exemplary embodiment of the present disclosure, a power input module includes an overvoltage protection unit, an overcurrent protection unit, and a filtering unit;

[0024] The input end of the overvoltage protection unit and the input end of the overcurrent protection unit are both used to connect to an external power supply;

[0025] The output end of the overvoltage protection unit and the output end of the overcurrent protection unit are both connected to the input end of the filter unit;

[0026] The output end of the filter unit is connected to the input end of the voltage stabilizing module.

[0027] In an exemplary embodiment of the present disclosure, the intrinsically safe module includes a current limiting unit and a pressure limiting unit;

[0028] The input end of the current limiting unit and the input end of the voltage limiting unit are both connected to the output end of the voltage stabilizing module;

[0029] The output end of the current limiting unit and the output end of the voltage limiting unit are both connected to the control module.

[0030] In an exemplary embodiment of the present disclosure, a flameproof and intrinsically safe stable power supply device for mining further includes a dehumidification module and a dust removal module;

[0031] The dehumidification module and the dust removal module are both connected to the control module.

[0032] In an exemplary embodiment of the present disclosure, a flameproof and intrinsically safe stable power supply device for mining further includes a fault detection module;

[0033] The fault detection module is connected to the control module.

[0034] In an exemplary embodiment of the present disclosure, a flameproof and intrinsically safe stable power supply device for mining further includes an alarm module;

[0035] The alarm module is connected to the control module.

[0036] The beneficial effects of the flameproof and intrinsically safe stable power supply device for mining provided by the embodiments of the present disclosure are:

[0037] The embodiments of the present disclosure achieve stable and safe power supply to mining equipment, significantly improving the safety and reliability of mine operations. The setting of the intrinsically safe module effectively limits the power supply voltage and current, effectively preventing the risk of explosion caused by electrical failure, and ensuring the safety of personnel and equipment. At the same time, the introduction of the anti-interference module can effectively block external electromagnetic interference, ensure the stable transmission of communication signals, and improve the overall stability of the device. In addition, the embodiments of the present disclosure also ensure that communication signals can be accurately and stably transmitted to terminal devices in complex mining environments by selecting the combination of switch modules and or modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] Figure 1 This is a structural diagram of a flameproof and intrinsically safe stable power supply device for mining provided by an embodiment of the present disclosure;

[0040] Figure 2 It is a structural schematic diagram of another flameproof and intrinsically safe stable power supply device for mining provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] To help those skilled in the art better understand this solution, the following will clearly describe the technical solutions in the embodiments of this solution in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of this solution, not all of it. Based on the embodiments of this solution, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of this solution.

[0042] Throughout the specification, claims, and accompanying figures of this solution, the term "including" and any variations thereof mean "including, but not limited to," and are intended to cover non-exclusive inclusions and are not limited to the examples listed herein. Furthermore, the terms "first" and "second," etc., are used to distinguish between different objects, not to describe a specific order.

[0043] The following describes the implementation of the present disclosure in detail with reference to the accompanying drawings:

[0044] Figure 1 This is a structural diagram of a flameproof and intrinsically safe stable power supply device for mining provided by an embodiment of the present disclosure. Figure 1 The mine flameproof and intrinsically safe stable power supply device includes:

[0045] Power input module 101, voltage stabilization module 102, intrinsic safety module 103, control module 104, anti-interference module 105, remote communication module 106, selection switch module 107, or module 108 and signal enhancement module 109;

[0046] The input end of the power input module 101 is used to connect to the external power supply 10, and the output end is connected to the input end of the voltage stabilizing module 102;

[0047] The output end of the voltage stabilizing module 102 is connected to the input end of the intrinsically safe module 103;

[0048] The control module 104 is connected to the output terminal of the intrinsic safety module 103, the input terminal of the anti-interference module 105 and the remote communication module 106 respectively;

[0049] The output terminal of the remote communication module 106 is connected to the first terminal of the selection switch module 107;

[0050] The second end of the selection switch module 107 is connected to the input end of the signal enhancement module 109;

[0051] The third terminal of the selection switch module 107 is used to communicate with the terminal 20;

[0052] The output end of the signal enhancement module 109 is used to communicate with the terminal 20;

[0053] The control end of the selection switch module 107 is connected to the output end of the OR module 108;

[0054] Or the first input terminal of module 108 is used to receive the humidity signal;

[0055] Or the second input terminal of module 108 is used to receive the dust concentration signal;

[0056] The intrinsic safety module 103 is configured to limit the supply voltage and the supply current;

[0057] The anti-interference module 105 is configured to block external electromagnetic interference.

[0058] In this embodiment, the power input module 101 is connected to the external power source 10, serving as the power inlet for the entire device and providing raw electrical energy. The external power source 10 can be a power grid. The voltage stabilization module 102 stabilizes the voltage of the input power source within a suitable range. The voltage stabilization module 102 receives the output voltage of the power input module 101, processes it, and outputs a stable voltage to the intrinsically safe module 103. For example, if the voltage of the external power source 10 fluctuates within a certain range, the voltage stabilization module 102 can stabilize the output voltage at the voltage required for normal operation of the device, ensuring that the intrinsically safe module 103 receives a stable input voltage.

[0059] Intrinsically safe module 103 is used to limit the supply voltage and current. In environments with flammable and explosive gases, such as coal mines, excessive voltage or current can easily generate sparks, leading to explosions and other hazards. By limiting voltage and current, intrinsically safe module 103 ensures that the output power is inherently safe and does not generate enough energy to cause an explosion.

[0060] The control module 104 is connected to the output of the intrinsic safety module 103, the anti-interference module 105, and the input of the remote communication module 106. Based on the status information output by the intrinsic safety module 103, the control module 104 coordinates the operation of the anti-interference module 105, receives and processes signals from the remote communication module 106, and monitors and controls the operating status of the entire device.

[0061] A large number of electrical devices in a mining environment can generate various types of electromagnetic interference. The function of the anti-interference module 105 is to block external electromagnetic interference, preventing these interference signals from affecting the normal operation of the device. For example, when a high-power motor starts up nearby, it generates electromagnetic pulses. The anti-interference module 105 can prevent these pulses from entering the device, ensuring the stable operation of the internal circuits.

[0062] Remote communication module 106 is used to enable remote communication between the device and terminal 20. It receives signals from control module 104 and transmits information such as the device's operating status and fault information. It also receives control commands from terminal 20. The output of remote communication module 106 is connected to the first terminal of selector switch module 107, which determines the communication path.

[0063] The selection switch module 107 determines whether to process the signal through the signal enhancement module 109 and then send it to the terminal 20 , or to communicate directly with the terminal 20 , according to the output signal of the OR module 108 .

[0064] OR module 108 has two inputs: the first for receiving a humidity signal and the second for receiving a dust concentration signal. If either of these signals meets a specific condition, OR module 108 outputs a signal to control the communication path selection of selector switch module 107. For example, if the humidity in a mining environment exceeds a certain threshold or the dust concentration is too high, OR module 108 triggers selector switch module 107 to switch the corresponding communication path.

[0065] When the selection switch module 107 chooses to communicate through the signal enhancement module 109, the signal can be enhanced and then sent to the terminal 20 to ensure that the communication signal can be accurately and stably transmitted to the terminal 20 device in a complex mining environment.

[0066] From the above, it can be concluded that this embodiment achieves stable and safe power supply to mining equipment, significantly improving the safety and reliability of mine operations. The setting of the intrinsically safe module 103 effectively limits the power supply voltage and current, effectively prevents the risk of explosion caused by electrical faults, and ensures the safety of personnel and equipment. At the same time, the introduction of the anti-interference module 105 can effectively block external electromagnetic interference, ensure the stable transmission of communication signals, and improve the overall stability of the device. In addition, this embodiment also ensures that the communication signal can be accurately and stably transmitted to the terminal 20 device in a complex mining environment by selecting the switch module 107 and the or module 108.

[0067] In one embodiment of the present disclosure, reference Figure 2 , a flameproof and intrinsically safe stable power supply device for mining, further comprising a first comparator 110, a second comparator 111, a humidity detection module 112 and a dust detection module 113;

[0068] The humidity detection module 112 is connected to the non-inverting input terminal of the first comparator 110;

[0069] The inverting input terminal of the first comparator 110 is used to receive the humidity reference value, and the output terminal is connected to the first input terminal of the OR module 108;

[0070] The dust detection module 113 is connected to the non-inverting input terminal of the second comparator 111;

[0071] The inverting input terminal of the second comparator 111 is used to receive the dust concentration reference value, and the output terminal is connected to the second input terminal of the OR module 108 .

[0072] In this embodiment, the humidity detection module 112 is used to detect the humidity in the mining environment, is connected to the non-inverting input terminal of the first comparator 110, and transmits the detected actual humidity value to the first comparator 110 in the form of an electrical signal.

[0073] The inverting input of the first comparator 110 is used to receive a humidity reference value. The first comparator 110 compares the actual humidity value input by the humidity detection module 112 with the humidity reference value. If the actual humidity value is greater than the humidity reference value, indicating that the ambient humidity exceeds the safe range, the output of the first comparator 110 outputs an electrical signal "1" to the first input of the OR module 108. This electrical signal triggers the OR module 108 to perform a logical analysis, thereby determining whether the communication path of the selector switch module 107 needs to be adjusted. For example, if the humidity is too high, the signal enhancement module 109 may be used to enhance the communication signal to overcome the effects of humidity on signal transmission.

[0074] The dust detection module 113 is used to detect the dust concentration in the mining environment, is connected to the non-inverting input terminal of the second comparator 111, and transmits the detected dust concentration value to the second comparator 111 in the form of an electrical signal.

[0075] The inverting input of the second comparator 111 is used to receive a dust concentration reference value. The second comparator 111 compares the actual dust concentration value input by the dust detection module 113 with the dust concentration reference value. If the actual dust concentration value is greater than the dust concentration reference value, indicating that the ambient dust concentration exceeds the safe range, the output of the second comparator 111 will output an electrical signal "1" to the second input of the OR module 108. The above electrical signal will also trigger the OR module 108 to perform a logical judgment to determine whether the communication path needs to be adjusted. For example, if the dust concentration is too high, it is necessary to switch to a more stable communication mode to ensure reliable communication with the terminal 20.

[0076] For example, when the actual humidity value is greater than or equal to the humidity reference value, the output end of the first comparator 110 will output an electrical signal "1" to the first input end of the OR module 108, and when the actual dust concentration value is greater than or equal to the dust concentration reference value, the output end of the second comparator 111 will output an electrical signal "1" to the second input end of the OR module 108. At this time, the OR module 108 outputs an electrical signal "1" after logical judgment, and controls the selection switch module 107 to connect to the signal enhancement module 109; when the actual humidity value is greater than or equal to the humidity reference value, the output end of the first comparator 110 will output an electrical signal "1" to the first input end of the OR module 108. When the actual dust concentration value is less than the dust concentration reference value, the output end of the second comparator 111 will output an electrical signal "0" to the second input end of the OR module 108. At this time, the OR module 108 outputs an electrical signal "1" after logical judgment, and controls the selection switch module 107 to connect to the signal enhancement module 109. Module 109; when the actual humidity value is less than the humidity reference value, the output end of the first comparator 110 will output an electrical signal "0" to the first input end of the OR module 108, and when the actual dust concentration value is greater than or equal to the dust concentration reference value, the output end of the second comparator 111 will output an electrical signal "1" to the second input end of the OR module 108. At this time, the OR module 108 outputs an electrical signal "1" after logical judgment, and controls the selection switch module 107 to connect to the signal enhancement module 109; when the actual humidity value is less than the humidity reference value, the output end of the first comparator 110 will output an electrical signal "0" to the first input end of the OR module 108. When the actual dust concentration value is less than the dust concentration reference value, the output end of the second comparator 111 will output an electrical signal "0" to the second input end of the OR module 108. At this time, the OR module 108 outputs an electrical signal "0" after logical judgment, and controls the selection switch module 107 to directly connect to the terminal 20 for communication.

[0077] From the above, it can be concluded that this embodiment further enhances the environmental adaptability of the power supply device. By comparing the detected humidity and dust concentration with the preset reference values ​​in real time, the power supply device can accurately judge the working environment conditions and make timely adjustments.

[0078] In one embodiment of the present disclosure, reference Figure 2 , the power input module 101 includes an overvoltage protection unit 201, an overcurrent protection unit 202 and a filtering unit 203;

[0079] The input end of the overvoltage protection unit 201 and the input end of the overcurrent protection unit 202 are both used to connect to the external power supply 10;

[0080] The output end of the overvoltage protection unit 201 and the output end of the overcurrent protection unit 202 are both connected to the input end of the filter unit 203;

[0081] The output end of the filter unit 203 is connected to the input end of the voltage stabilization module 102 .

[0082] In this embodiment, the input of the overvoltage protection unit 201 is connected to the external power supply 10 to prevent damage to the device caused by excessive voltage from the external power supply 10. When the voltage of the external power supply 10 exceeds a preset safety voltage value, the overvoltage protection unit 201 automatically activates the protection mechanism. For example, in a mine, transient high voltages are prone to occur due to power grid fluctuations, lightning strikes, and other factors. The overvoltage protection unit 201 can be implemented using components such as varistors and transient suppression diodes. When the voltage is too high, the resistance of these components drops sharply, shunting the excessive voltage and thus protecting subsequent circuits.

[0083] The input of the overcurrent protection unit 202 is connected to the external power supply 10 to prevent excessive current from entering the device. In mining equipment, a fault such as a short circuit can easily cause a sharp increase in current. The overcurrent protection unit 202 can employ components such as fuses and thermal relays to provide protection. For example, when the current exceeds the rated current of a fuse, the fuse element will melt, thereby disconnecting the circuit and preventing the excessive current from continuing to flow.

[0084] The input of the filter unit 203 receives the processed power from the overvoltage protection unit 201 and the overcurrent protection unit 202 and filters out interference signals, such as high-frequency noise. The filter unit 203 can use components such as capacitors and inductors to form a filter circuit to filter the power. For example, capacitors can filter out high-frequency components in the power supply, while inductors can filter out low-frequency interference.

[0085] As can be seen from the above, this embodiment provides comprehensive and reliable input protection for the voltage stabilization module 102. The overvoltage protection unit 201 and the overcurrent protection unit 202 effectively protect against abnormal fluctuations in the external power supply 10, preventing damage to the power supply device due to excessive voltage or current. The filter unit 203 further purifies the power signal, eliminating interference and noise, and ensuring the quality of the power input to the voltage stabilization module 102.

[0086] In one embodiment of the present disclosure, reference Figure 2 , the intrinsically safe module 103 includes a current limiting unit 301 and a voltage limiting unit 302;

[0087] The input end of the current limiting unit 301 and the input end of the voltage limiting unit 302 are both connected to the output end of the voltage stabilizing module 102;

[0088] The output end of the current limiting unit 301 and the output end of the voltage limiting unit 302 are both connected to the control module 104 .

[0089] In this embodiment, the current limiting unit 301 receives a stabilized power signal. Although the voltage output by the voltage stabilizing module 102 is relatively stable, the current can still vary due to various factors (such as load changes) and may exceed the safe current range required by intrinsic safety.

[0090] The function of the current limiting unit 301 is to limit the current. When the input current exceeds the set safe current value, the current limiting unit 301 will automatically adjust the equivalent resistance of the circuit or control the current output so that the current output to the subsequent control module 104 is limited to a safe range.

[0091] In mining environments, particularly those with flammable gases or dust, excessive current can easily generate enough energy to cause sparks and explosions during circuit faults (such as short circuits). Current limiting unit 301 effectively mitigates this risk by limiting the current, ensuring that even in the event of a circuit anomaly, the output current does not reach dangerous levels.

[0092] The voltage limiting unit 302 receives the stabilized power signal. Although the voltage stabilizing module 102 has initially stabilized the voltage, there may still be voltage fluctuations or other factors that cause the voltage to exceed the safe voltage range required by intrinsic safety.

[0093] The voltage limiting unit 302 functions to limit voltage. When the input voltage exceeds a set safe voltage value, the components within the voltage limiting unit 302 undergo corresponding electrical characteristic changes (e.g., a Zener diode reversely breaks down, initiating voltage regulation), stabilizing the output voltage within a safe voltage range before outputting it to the control module 104.

[0094] In mining environments such as coal mines, excessively high voltages can easily break down electrical insulation, causing arcs or sparks. Voltage limiting unit 302 prevents this from happening by limiting the voltage to a safe range, thereby ensuring the safety of the entire device in hazardous environments and avoiding accidents such as explosions or fires caused by high voltage.

[0095] As can be seen from the above, the intrinsically safe module 103, through its integrated current-limiting unit 301 and voltage-limiting unit 302, provides precise control over the power output by the voltage-stabilizing module 102. The current-limiting unit 301 effectively limits the current, preventing damage to subsequent circuits due to overcurrent; the voltage-limiting unit 302 ensures voltage stability, preventing the impact of voltage fluctuations on device performance. Therefore, this embodiment improves the stability and reliability of the power supply device.

[0096] In one embodiment of the present disclosure, reference Figure 2 , a flameproof and intrinsically safe stable power supply device for mining, further comprising a dehumidification module 114 and a dust removal module 115;

[0097] The dehumidification module 114 and the dust removal module 115 are both connected to the control module 104 .

[0098] In this embodiment, the dehumidification module 114 is connected to the control module 104, which means that the control module 104 can turn the dehumidification module 114 on, off, or adjust its working intensity as needed. For example, when the humidity detection module 112 detects that the ambient humidity exceeds a certain threshold, the control module 104 can send a command to the dehumidification module 114 to activate the dehumidification function.

[0099] Dehumidification module 114 removes moisture from the air through methods such as physical adsorption and condensation. In mining environments, high humidity can easily cause moisture and corrosion in electronic equipment, impacting their performance and lifespan, and even causing faults such as short circuits. By reducing ambient humidity, dehumidification module 114 creates a relatively dry operating environment for power supply units and other mining equipment, improving their reliability and safety.

[0100] The dust removal module 115 is also connected to the control module 104 and is controlled by the control module 104 according to the dust concentration information fed back by the dust detection module 113. When the dust concentration exceeds a set value, the control module 104 can start the dust removal module 115 to work.

[0101] The dust removal module 115 removes dust particles from the air through filtration and electrostatic adsorption. In mining operations, high dust concentrations can easily affect equipment cooling, block vents, reduce performance, and even damage electronic components. The dust removal module 115 effectively reduces dust concentration in the environment, keeping the equipment clean and improving its cooling efficiency and operational stability.

[0102] From the above, it can be concluded that this embodiment enables the power supply device to not only adapt to adverse factors such as humidity and dust in the mining environment, but also take proactive measures to improve the environment, thereby better ensuring the stability and safety of power supply and reducing maintenance costs.

[0103] In one embodiment of the present disclosure, reference Figure 2 , a flameproof and intrinsically safe stable power supply device for mining, further comprising a fault detection module 116;

[0104] The fault detection module 116 is connected to the control module 104 .

[0105] In this embodiment, the fault detection module 116 can transmit the detected fault information to the control module 104 in real time. The control module 104 performs corresponding processing based on the above information, such as issuing an alarm, starting a backup power supply device, or taking other emergency measures.

[0106] The fault detection module 116 determines whether a fault exists by detecting parameters such as the input and output signals, voltage and current values, and temperature of each module. For example, the fault detection module 116 can detect whether the voltage of the power input module 101 is stable, whether the current and voltage limiting functions of the intrinsic safety module 103 are functioning properly, and whether signal transmission of each communication module is unimpeded.

[0107] As can be seen from the above, this embodiment can promptly detect problems at an early stage, prevent the failure from escalating, and reduce the risk of equipment damage and production interruption. At the same time, this embodiment also provides maintenance personnel with accurate fault information, facilitating rapid fault location and repair, thereby improving equipment reliability and availability.

[0108] In one embodiment of the present disclosure, reference Figure 2 , a flameproof and intrinsically safe stable power supply device for mining, further comprising an alarm module 117;

[0109] The alarm module 117 is connected to the control module 104 .

[0110] In this embodiment, upon receiving fault information from the fault detection module 116 or when the operating status of other modules exceeds a preset safety range, the control module 104 sends a signal to the alarm module 117. After receiving the signal, the alarm module 117 issues an alarm through sound, light, display, etc.

[0111] For example, when the fault detection module 116 detects an overvoltage or overcurrent fault in the power input module 101, the control module 104 immediately triggers the alarm module 117. The alarm module 117 can emit a loud alarm and flash a warning light so that workers can quickly detect the problem even in a noisy mine environment.

[0112] It can be concluded from the above that the existence of the alarm module 117 can promptly remind the staff to pay attention to potential dangers so that they can quickly take measures to deal with them and prevent accidents from happening.

[0113] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

Claims

1. A flameproof and intrinsically safe stable power supply device for mining, characterized in that: include: Power input module, voltage stabilization module, intrinsic safety module, control module, anti-interference module, remote communication module, selection switch module, or module and signal enhancement module; The input end of the power input module is used to connect to an external power source, and the output end is connected to the input end of the voltage stabilizing module; The output end of the voltage stabilizing module is connected to the input end of the intrinsically safe module; The control module is respectively connected to the output end of the intrinsic safety module, the anti-interference module and the input end of the remote communication module; The output end of the remote communication module is connected to the first end of the selection switch module; The second end of the selection switch module is connected to the input end of the signal enhancement module; The third end of the selection switch module is used to communicate with the terminal; The output end of the signal enhancement module is used to communicate with the terminal; The control end of the selection switch module is connected to the output end of the OR module; The first input terminal of the module is used to receive a humidity signal; The second input terminal of the or module is used to receive a dust concentration signal; The intrinsically safe module is configured to limit the supply voltage and the supply current; The anti-interference module is configured to block external electromagnetic interference.

2. A flameproof and intrinsically safe stable power supply device for mining according to claim 1, characterized in that: It also includes a first comparator, a second comparator, a humidity detection module and a dust detection module; The humidity detection module is connected to the non-inverting input terminal of the first comparator; The inverting input terminal of the first comparator is used to receive the humidity reference value, and the output terminal is connected to the first input terminal of the OR module; The dust detection module is connected to the non-inverting input terminal of the second comparator; The inverting input terminal of the second comparator is used to receive the dust concentration reference value, and the output terminal is connected to the second input terminal of the OR module.

3. The flameproof and intrinsically safe stable power supply device for mining according to claim 1, characterized in that: The power input module includes an overvoltage protection unit, an overcurrent protection unit and a filter unit; The input end of the overvoltage protection unit and the input end of the overcurrent protection unit are both used to connect to an external power supply; The output end of the overvoltage protection unit and the output end of the overcurrent protection unit are both connected to the input end of the filter unit; The output end of the filter unit is connected to the input end of the voltage stabilizing module.

4. The flameproof and intrinsically safe stable power supply device for mining according to claim 1, characterized in that: The intrinsically safe module includes a current limiting unit and a pressure limiting unit; The input end of the current limiting unit and the input end of the voltage limiting unit are both connected to the output end of the voltage stabilizing module; The output end of the current limiting unit and the output end of the voltage limiting unit are both connected to the control module.

5. The flameproof and intrinsically safe stable power supply device for mining according to claim 1, characterized in that: It also includes a dehumidification module and a dust removal module; The dehumidification module and the dust removal module are both connected to the control module.

6. The flameproof and intrinsically safe stable power supply device for mining according to claim 1, characterized in that: Also included is a fault detection module; The fault detection module is connected to the control module.

7. The flameproof and intrinsically safe stable power supply device for mining according to claim 1, characterized in that: It also includes an alarm module; The alarm module is connected to the control module.

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