Mine fan light warning indicator

Abstract

The embodiment of the utility model specifically discloses a mine fan lamplight warning indicator which is characterized in that an adsorption device is arranged on one side of a wind driven generator and an LED lamp, and the wind driven generator and the LED lamp are connected through a lamplight warning indicator circuit; the lamplight warning indicator circuit comprises a bridge rectifier and a 555 time-base circuit, the output end of the wind driven generator is connected with the alternating current input end of the bridge rectifier, the positive electrode of the bridge rectifier is connected with the negative electrode of the LED lamp and the first end of the resistor R1, and the second end of the resistor R1 is connected with the positive electrode of the voltage stabilizing diode VS, the first end of the capacitor C1, the reset end of the 555 time-base circuit and the power supply end. The negative electrode of the bridge rectifier is connected with the negative electrode of the voltage stabilizing diode VS and the second end of the capacitor C1, the output end of the 555 time-base circuit is connected with the first end of the resistor R3, the second end of the resistor R3 is connected with the gate electrode of the thyristor VTH and the first end of the capacitor C4, the negative electrode of the thyristor VTH is connected with the positive electrode of the LED lamp, and the negative electrode of the capacitor C4 is connected with the positive electrode of the LED lamp. The positive electrode of the thyristor VTH and the second end of the capacitor C4 are connected with the negative electrode of the bridge rectifier.

Description

Technical Field

[0001] The present application relates to the technical field of mine ventilation systems, and in particular to a light warning device for a mine fan. Background Art

[0002] Mine ventilation is the basic guarantee for mine production. Mine ventilation refers to the continuous delivery of an appropriate amount of fresh air to various wind-using points underground with the help of mechanical and natural wind pressure, supplying personnel with breathing, diluting and exhausting various harmful gases and floating dust, so as to reduce the ambient temperature and create good working conditions underground. The ventilation system is a large and complex associated system composed of several subsystems and units such as the mine network, main fans and ventilation structures. The fan is the most important equipment for underground ventilation. The fan is located in the dark underground. When the power is cut off and stopped, it is affected by the direction of the underground ventilation airflow. The fan reverses when it is affected by the reverse airflow and rotates forward when it is affected by the forward airflow. When the airflow is strong, the fan rotates at a high speed. When the airflow is weak, the fan rotates at a low speed. On-site ventilation inspection personnel cannot directly judge the status of the fan by vision. At present, there is no other technical means to determine the rotation direction and speed of the ventilation fans in the stopped state, so ventilation inspectors cannot know the rotation status of the fans at a glance. Inspectors need to use flashlights to illuminate the rotating fans to determine the direction, use their ears to listen to the rotating whistling sound of the fans, know the fan speed, and use their faces to feel the direction of the wind. However, relying on sense judgment is not intuitive, accurate, or safe. Summary of the invention

[0003] The purpose of the present application is to provide a mine fan light warning device to solve the problem that in the prior art, the ventilation fan in the stopped state has no other technical means to determine the direction of the fan's rotation and the size of the fan's rotation speed, and the ventilation inspectors cannot know the fan's rotation status at a glance. The inspectors need to use a flashlight to illuminate the rotating fan to determine the direction, use their ears to listen to the rotating whistling sound of the fan to know the fan speed, and use their faces to feel the direction of the wind, but rely on feeling to judge, which is not intuitive, accurate, or safe.

[0004] To achieve the above-mentioned purpose, the embodiment of the present application provides a mine fan light warning device, including: an adsorption device, a wind turbine, an LED light, and a light warning device circuit, wherein:

[0005] The adsorption device is arranged on one side of the wind generator and the LED lamp, and the wind generator and the LED lamp are connected via the light warning circuit;

[0006] The light warning device circuit includes a rectifier bridge stack and a 555 time base circuit. The output end of the wind turbine is connected to the AC input end of the rectifier bridge stack. The positive electrode of the rectifier bridge stack is respectively connected to the negative electrode of the LED lamp and the first end of the resistor R1. The second end of the resistor R1 is respectively connected to the positive electrode of the voltage stabilizing diode VS, the first end of the capacitor C1, the reset end and the power supply end of the 555 time base circuit. The negative electrode of the rectifier bridge stack is respectively connected to the negative electrode of the voltage stabilizing diode VS and the second end of the capacitor C1. The output end of the 555 time base circuit is connected to the first end of the resistor R3. The second end of the resistor R3 is respectively connected to the gate of the thyristor VTH and the first end of the capacitor C4. The negative electrode of the thyristor VTH is connected to the positive electrode of the LED lamp. The positive electrode of the thyristor VTH and the second end of the capacitor C4 are both connected to the negative electrode of the rectifier bridge stack.

[0007] Optionally, the light warning circuit further includes:

[0008] The second end of the resistor R1 is also connected to the first end of the resistor R2, the second end of the resistor R2 is respectively connected to the first end and the brush end of the potentiometer RP, the second end of the potentiometer RP is respectively connected to the first end of the capacitor C2, the low trigger end and the high trigger end of the 555 time base circuit, the first end and the brush end of the potentiometer RP are also connected to the discharge end of the 555 time base circuit, and the second end of the capacitor C2 is connected to the negative electrode of the rectifier bridge stack.

[0009] Optionally, the light warning circuit further includes:

[0010] The control end of the 555 time base circuit is connected to the first end of the capacitor C3, and the negative end of the 555 time base circuit and the second end of the capacitor C3 are connected to the negative electrode of the rectifier bridge stack.

[0011] Optionally, the adsorption device is a sheet of NdFeB strong magnetic material.

[0012] Optionally, it also includes:

[0013] An adjustable potentiometer knob is arranged on one side of the adsorption device and is connected to the brush of the potentiometer RP to control the movement of the brush of the potentiometer RP.

[0014] Optionally, the wind wheel of the wind generator is perpendicular to the plane where the adsorption device is located.

[0015] Optionally, there are multiple wind turbines and LED lights, and each wind turbine is connected to a corresponding LED light via a set of light warning circuits.

[0016] Optionally, the plurality of wind turbines are arranged vertically from top to bottom, and the colors of the plurality of LED lights include yellow, green and red.

[0017] The embodiments of the present application have the following advantages:

[0018] Compared with the existing technology, the mine fan light warning device provided by the above technical solution is based on modern electronic technology to realize the photoelectric LED frequency flashing, and obtains the mine fan light warning device information based on the flashing trajectory, such as: whether it is rotating, the direction of rotation, the rotation speed, etc. The power of the mine fan light warning device comes from the power of the micro-generator installed on the self-rotating fan blades. The mine fan light warning device that rotates with the fan and the flashing LED on it form a beautiful halo that is very dazzling in the dark well and is easy for patrol personnel to identify. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a mine fan light warning device provided by at least one embodiment of the present application;

[0021] Figure 2 A front view of a mine fan light warning device provided by at least one embodiment of the present application;

[0022] Figure 3 A side view of a mine fan light warning device provided by at least one embodiment of the present application;

[0023] Figure 4 A circuit schematic diagram of a light warning device circuit of a mine fan light warning device provided by at least one embodiment of the present application;

[0024] Figure 5 A schematic diagram of the installation of a mine fan light warning device provided in at least one embodiment of the present application. DETAILED DESCRIPTION

[0025] The following is a description of the implementation of the present application by specific specific embodiments. People familiar with the technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0026] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "set", "install", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0027] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0028] The present application embodiment provides a mine fan light warning device, referring to Figures 1 to 5 ,include:

[0029] Adsorption device 1, wind turbine 2, LED lamp 3, light warning circuit, wherein:

[0030] The adsorption device 1 is arranged on one side of the wind generator 2 and the LED lamp 3, and the wind generator 2 and the LED lamp 3 are connected through the light warning circuit;

[0031] The light warning device circuit includes a rectifier bridge stack 6 and a 555 time base circuit (NE555) 7. The output end of the wind turbine 2 is connected to the AC input end of the rectifier bridge stack 6. The positive electrode of the rectifier bridge stack 6 is respectively connected to the negative electrode of the LED lamp 3 and the first end of the resistor R1. The second end of the resistor R1 is respectively connected to the positive electrode of the voltage stabilizing diode VS, the first end of the capacitor C1, the reset end (pin 4) and the power supply end (pin 8) of the 555 time base circuit 7. The negative electrode of the rectifier bridge stack 6 is respectively connected to the negative electrode of the voltage stabilizing diode VS and the second end of the capacitor C1. The output end (pin 3) of the 555 time base circuit 7 is connected to the first end of the resistor R3. The second end of the resistor R3 is respectively connected to the gate of the thyristor VTH and the first end of the capacitor C4. The negative electrode of the thyristor VTH is connected to the positive electrode of the LED lamp 3. The positive electrode of the thyristor VTH and the second end of the capacitor C4 are both connected to the negative electrode of the rectifier bridge stack 6.

[0032] Specifically, due to the (reverse and forward) airflow in the mine tunnel, the fan that has been powered off and stopped rotates. The mine fan light warning device 8 uses the self-rotating ventilation fan to have a certain rotation speed, generates electricity through the small wind turbine 2 on the mine fan light warning device 8, and then outputs direct current through the rectifier bridge (VD1~VD4), one path is used as the positive anode of the thyristor VTH, and the other path is limited by the resistor R1, stabilized by the voltage-stabilizing diode VS and filtered by the capacitor C1 to output a stable DC voltage of 12V to provide power for the 555 time base circuit 7.

[0033] In some embodiments, the light warning circuit further includes:

[0034] The second end of the resistor R1 is also connected to the first end of the resistor R2, the second end of the resistor R2 is respectively connected to the first end and the brush end of the potentiometer RP, the second end of the potentiometer RP is respectively connected to the first end of the capacitor C2, the low trigger end (pin 2) and the high trigger end (pin 6) of the 555 time base circuit 7, the first end and the brush end of the potentiometer RP are also connected to the discharge end (pin 7) of the 555 time base circuit 7, and the second end of the capacitor C2 is connected to the negative electrode of the rectifier bridge stack 6.

[0035] Specifically, the 555 time base circuit 7 is in an astable working mode, and it forms an ultra-low frequency oscillator with the resistor R2, the potentiometer RP and the capacitor C2.

[0036] In some embodiments, the light warning circuit further includes:

[0037] The control end (pin 5) of the 555 time base circuit 7 is connected to the first end of the capacitor C3, and the negative end (pin 1) of the 555 time base circuit 7 and the second end of the capacitor C3 are connected to the negative electrode of the rectifier bridge stack 6.

[0038] In some embodiments, the adsorption device 1 is a sheet of NdFeB strong magnetic material.

[0039] Specifically, it can be installed on the fan blade 10 by means of a strong magnetic surface mounting method.

[0040] In some embodiments, it also includes:

[0041] The adjustable potentiometer knob 4 is arranged on one side of the adsorption device 1 and is connected to the brush of the potentiometer RP to control the movement of the brush of the potentiometer RP.

[0042] In some embodiments, the wind wheel 5 of the wind turbine 2 is perpendicular to the plane where the adsorption device 1 is located.

[0043] Specifically, after the adsorption device 1 is installed on the wind blade 10, the direction of the wind wheel 5 of the vertically arranged wind turbine 2 is the same as or opposite to the rotation direction of the wind blade 10, so that the rotation of the wind blade 10 can be efficiently utilized to obtain wind power.

[0044] In some embodiments, there are multiple wind turbines 2 and LED lights 3, and each wind turbine 2 is connected to a corresponding LED light 3 through a set of light warning circuits.

[0045] In some embodiments, the plurality of wind turbines 2 are arranged vertically from top to bottom, and the colors of the plurality of LED lights 3 include yellow, green, and red.

[0046] Specifically, in some embodiments, reference Figure 3 The mine fan light warning device 8 has three LED lights 3, which are composed of yellow, red and green colors, which are convenient for identification in the dark underground. By adjusting the potentiometer RP adjustable resistance, the flashing frequency of the LED lights 3 is changed to adapt it to the rotation speed of the fan, which is convenient for the inspectors to visually observe the direction of the fan rotation. The mine fan warning device has three independent micro wind turbines 2, which independently supply power to the three colors of LED lights 3 and related light warning circuits, without interfering or affecting each other. Even if one color circuit and generator are damaged, it will not affect the on-site observation and judgment of the inspectors.

[0047] refer to Figure 5 The mine fan light warning device 8 is installed on the fan blade 10 through the adsorption device 1 on one side, and the wind wheel 5 of the wind turbine 2 is oriented in the same direction as or opposite to the rotation direction of the fan blade 10, and the fan blade 10 is arranged on the fan base 9.

[0048] The working principle of the mine fan light warning device 8 provided in the above embodiment of the present application is as follows:

[0049] After the circuit is powered by the wind turbine 2, the 555 time base circuit 7 starts to oscillate, and the output end (pin 3) alternately outputs high level and low level, and its oscillation frequency f can be adjusted by the potentiometer RP. The unidirectional thyristor VTH, the resistor R3, and the capacitor C4 constitute the simplest thyristor switch circuit. When the 555 time base circuit 73 pin outputs a high level, this high level is added to the gate of the thyristor VTH through the resistor R3, so that the thyristor VTH is triggered to turn on, and the LED lamp 3 lights up. When the 555 time base circuit 73 pin outputs a low level, VTH loses the gate trigger current, turns off when the AC power passes zero, and the LED lamp 3 goes out. When the resistance value of the potentiometer RP is adjusted, the frequency of the astable oscillator changes due to the change in the charging and discharging speed of the capacitor C2. Therefore, the flashing frequency of the LED lamp 3 can be adjusted at will by rotating the potentiometer RP.

[0050] In summary, compared with the prior art, the mine fan light warning device 8 provided by the above technical solution is based on modern electronic technology to realize the photoelectric LED frequency flashing, and obtains the mine fan light warning device 8 information based on the flashing trajectory, such as: whether it is rotating, the direction of rotation, the rotation speed, etc. The power of the mine fan light warning device 8 comes from the power of the micro-generator installed on the self-rotating fan blades 10. The mine fan light warning device 8 that rotates with the fan and the flashing LED on it form a beautiful halo that is very dazzling in the dark well and is easy for patrol personnel to identify.

[0051] Note that, unless otherwise directly stated, all features disclosed in this specification (including any attached claims, abstracts and drawings) may be replaced by alternative features for achieving the same, equivalent or similar purposes. Therefore, unless otherwise explicitly stated, each feature disclosed is only an example of a group of equivalent or similar features. Where used, further, preferably, further and more preferably are simple beginnings for elaborating another embodiment based on the aforementioned embodiment, and the content of the further, preferably, further or more preferably followed by the combination with the aforementioned embodiment constitutes a complete construction of another embodiment. Several further, preferably, further or more preferably settings following the same embodiment can be arbitrarily combined to form another embodiment.

[0052] In the implementation of functions and steps, the corresponding functions and steps in various embodiments may also occur in a different order than shown. For example, two consecutive functions and steps may actually be performed or implemented substantially in parallel, and they may sometimes be performed or implemented in the opposite order, depending on the functions involved.

[0053] Although the present application has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements may be made to the present application. Therefore, these modifications or improvements made without departing from the spirit of the present application all fall within the scope of protection claimed in the present application.

Claims

1. A mine fan light warning device, characterized in that: include: Adsorption device, wind turbine, LED lamp, light warning circuit, wherein: The adsorption device is arranged on one side of the wind generator and the LED lamp, and the wind generator and the LED lamp are connected via the light warning circuit; The light warning device circuit includes a rectifier bridge stack and a 555 time base circuit. The output end of the wind turbine is connected to the AC input end of the rectifier bridge stack. The positive electrode of the rectifier bridge stack is respectively connected to the negative electrode of the LED lamp and the first end of the resistor R1. The second end of the resistor R1 is respectively connected to the positive electrode of the voltage stabilizing diode VS, the first end of the capacitor C1, the reset end and the power supply end of the 555 time base circuit. The negative electrode of the rectifier bridge stack is respectively connected to the negative electrode of the voltage stabilizing diode VS and the second end of the capacitor C1. The output end of the 555 time base circuit is connected to the first end of the resistor R3. The second end of the resistor R3 is respectively connected to the gate of the thyristor VTH and the first end of the capacitor C4. The negative electrode of the thyristor VTH is connected to the positive electrode of the LED lamp. The positive electrode of the thyristor VTH and the second end of the capacitor C4 are both connected to the negative electrode of the rectifier bridge stack.

2. The mine fan light warning device according to claim 1, characterized in that: The light warning device circuit further includes: The second end of the resistor R1 is also connected to the first end of the resistor R2, the second end of the resistor R2 is respectively connected to the first end and the brush end of the potentiometer RP, the second end of the potentiometer RP is respectively connected to the first end of the capacitor C2, the low trigger end and the high trigger end of the 555 time base circuit, the first end and the brush end of the potentiometer RP are also connected to the discharge end of the 555 time base circuit, and the second end of the capacitor C2 is connected to the negative electrode of the rectifier bridge stack.

3. The mine fan light warning device according to claim 1, characterized in that: The light warning device circuit further includes: The control end of the 555 time base circuit is connected to the first end of the capacitor C3, and the negative end of the 555 time base circuit and the second end of the capacitor C3 are connected to the negative electrode of the rectifier bridge stack.

4. The mine fan light warning device according to claim 1, characterized in that: The adsorption device is a sheet of NdFeB strong magnetic material.

5. The mine fan light warning device according to claim 2, characterized in that: Also includes: An adjustable potentiometer knob is arranged on one side of the adsorption device and is connected to the brush of the potentiometer RP to control the movement of the brush of the potentiometer RP.

6. The mine fan light warning device according to claim 1, characterized in that: The wind wheel of the wind generator is perpendicular to the plane where the adsorption device is located.

7. The mine fan light warning device according to claim 1, characterized in that: There are multiple wind turbines and LED lights, and each wind turbine is connected to a corresponding LED light through a set of light warning circuits.

8. The mine fan light warning device according to claim 7, characterized in that: The plurality of wind turbines are arranged vertically from top to bottom, and the colors of the plurality of LED lights include yellow, green and red.

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