Snow removing device for THDS system

Abstract

The utility model discloses a snow removing device for a THDS system, which belongs to the technical field of snow removing devices and comprises a snow blowing control board, an alternating current contactor, a snow accumulation sensor and a snow blowing module which are respectively connected with the snow blowing control board, a PDU power supply and a 30V switching power supply which are respectively connected with the alternating current contactor, and a snow melting heating film connected with the 30V switching power supply. According to the snow blowing control panel, whether accumulated snow exists or not can be sensed through the accumulated snow sensor, when the accumulated snow exists, the snow blowing module is automatically controlled to blow the snow, the snow melting heating film is controlled to melt the snow, automatic snow removal is achieved, and the PDU power source can be remotely controlled so that the snow blowing control panel can conduct automatic monitoring and snow removal. Automation of snow removal and snow melting is achieved, and normal work of the THDS equipment probe can be guaranteed in snow seasons.

Description

Technical Field

[0001] The utility model belongs to the technical field of snow removal devices, and in particular relates to a snow removal device for a THDS system. Background Art

[0002] THDS vehicle axle temperature intelligent detection system is a safety protection facility to detect vehicle hot axles and prevent hot axles. It is an important equipment to ensure the safety of railway transportation.

[0003] Due to the harsh environment in most areas of the Qinghai-Tibet Railway, especially at high altitudes, low temperatures, and frequent snowfall, the THDS outdoor equipment probe box is covered by snow, resulting in the inability to collect detection data normally, affecting the normal detection of the THDS equipment, resulting in low temperature measurement, and possibly missing the hot axis, thus affecting transportation safety. Therefore, a snow melting and snow removal device for THDS outdoor equipment is needed to ensure the normal operation of the THDS equipment. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a snow removal device for a THDS system, which solves the problem that the THDS outdoor equipment probe box cannot normally collect detection data due to being covered by snow.

[0005] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is: a snow removal device for a THDS system, including: a snow blowing control panel, AC contactors respectively connected to the snow blowing control panel, a snow accumulation sensor, a snow blowing module, a PDU power supply and a 30V switching power supply respectively connected to the AC contactor, and a snow melting heating film connected to the 30V switching power supply.

[0006] The beneficial effects of the utility model are as follows: the utility model designs a snowblowing control board, which can sense whether there is snow accumulation through a snow accumulation sensor. When there is snow accumulation, it automatically controls the snowblowing module to blow snow and controls the snowmelt heating film to melt snow, thereby realizing automatic snow removal. The utility model can remotely control the PDU power supply to enable the snowblowing control board to automatically monitor and remove snow, thereby realizing the automation of snow removal and snow melting, and can ensure the normal operation of the THDS equipment probe during the snow season.

[0007] Furthermore: the snow blowing control panel is a type A machine snow blowing control panel or a type B machine snow blowing control panel; the snow blowing module includes a first snow blowing module and a second snow blowing module, and the first snow blowing module and the second snow blowing module are both connected to the snow blowing control panel.

[0008] Further: the A-type machine snowblowing control panel includes: a timer U1, an optical coupler U2, a power module U3, a solid-state relay J1, a solid-state relay J2, a relay J3, a snow monitoring switch and a 7-core socket;

[0009] The first pin of the timer U1 is respectively connected to one end of the resistor R7 and the negative electrode of the polarity capacitor C2, and is grounded. The second pin of the timer U1 is respectively connected to one end of the resistor R5, the 8th pin of the optocoupler U2, the positive electrode of the polarity capacitor C2 and the 6th pin of the timer U1. The third pin of the timer U1 is connected to one end of the resistor R2. The fourth pin of the timer U1 is respectively connected to the other end of the resistor R5, the 8th pin of the timer U1, the 3rd pin of the power module U3, one end of the resistor R3 and one end of the resistor R8. The other end of the resistor R3 is connected to the positive electrode of the light-emitting diode D1, and the negative electrode of the light-emitting diode is connected to the 4th pin of the 7-core socket. The 5th pin is connected to the grounding capacitor C1, the other end of the resistor R7 is connected to the 7th pin of the optical coupler U2, the other end of the resistor R2 is connected to the 1st pin of the solid-state relay J2, the 2nd pin of the solid-state relay J2 is connected to the 4th pin of the 7-core socket, the 3rd pin of the solid-state relay J2 serves as the 6th pin of the wiring socket JK2, the 4th pin of the solid-state relay J2 serves as the 1st pin of the wiring socket JK2, the 1st pin of the optical coupler U2 is connected to one end of the resistor R6, the other end of the resistor R6 is respectively connected to one end of the resistor R1 and the 8th pin of the relay J3, the other end of the resistor R1 is connected to the 1st pin of the solid-state relay J1, the 2nd pin of the solid-state relay J1 is connected to The 4th pin of the 7-core socket is connected, the 3rd pin of the solid-state relay J1 is used as the 6th pin of the wiring socket JK2, the 4th pin of the solid-state relay J1 is used as the 3rd pin of the wiring socket JK2, the 2nd pin of the optical coupler U2 is connected to the 4th pin of the 7-core socket, the 3rd pin of the optical coupler U2 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to the 1st pin of the 7-core socket, the 4th pin of the optical coupler U2 is connected to the 5th pin of the 7-core socket, the 5th pin of the optical coupler U2 is connected to the 4th pin of the 7-core socket and is grounded, the 6th pin of the optical coupler U2 is connected to the 16th pin of the relay J3, the 1st pin of the relay J3 is connected to the resistor R 8, the 4th pin of the relay J3 is connected to the 3rd pin of the 7-core socket, the 1st pin of the power module U3 is connected to the 1st pin of the 7-core socket, the 2nd pin of the power module U3 is connected to the 2nd pin of the 7-core socket, the 4th pin of the power module U3 is connected to the 4th pin of the 7-core socket, one end of the snow monitoring switch is connected to the 2nd pin of the 7-core socket, the other end of the snow monitoring switch is respectively connected to the 5th pin of the 7-core socket and one end of the resistor R4, the other end of the resistor R4 is connected to the 1st pin of the 7-core socket, the 6th pin of the 7-core socket is the power supply +30V of the snow melting heating film, and the 7th pin of the 7-core socket is the +30V power ground of the snow melting heating film;

[0010] The power input terminal of the first snow blowing module is connected to the 3rd pin of the cable socket JK2, and the power ground terminal of the first snow blowing module is connected to the 6th pin of the cable socket JK2;

[0011] The power input terminal of the second snow blowing module is connected to the first pin of the cable socket JK2, and the power ground terminal of the second snow blowing module is connected to the sixth pin of the cable socket JK2;

[0012] The second pin, the fourth pin and the fifth pin of the cable socket JK2 are all neutral wires, the first pin of the cable socket JK2 is a live wire, and the sixth pin of the cable socket JK2 is a ground wire;

[0013] The 7-core socket is connected to the THDS device via a 7-core cable.

[0014] Further: the B-type machine snowblowing control panel includes: a timer U1, an optical coupler U2, a solid-state relay J1, a solid-state relay J2, a relay J3, a snow monitoring switch and a 7-core socket;

[0015] The first pin of the timer U1 is respectively connected to one end of the resistor R7 and the negative electrode of the polar capacitor C2, and is grounded. The second pin of the timer U1 is respectively connected to one end of the resistor R5, the eighth pin of the optical coupler U2, the positive electrode of the polar capacitor C2, and the sixth pin of the timer U1. The third pin of the timer U1 is connected to one end of the resistor R2. The fourth pin of the timer U1 is respectively connected to the other end of the resistor R5, the eighth pin of the timer U1, one end of the resistor R1, one end of the resistor R3, one end of the resistor R4, one end of the resistor R6, one end of the resistor R8, and one end of the resistor R9. and the first pin of the 7-core socket, the other end of the resistor R3 is connected to the positive electrode of the light-emitting diode D1, the negative electrode of the light-emitting diode is connected to the second pin of the 7-core socket, the fifth pin of the timer U1 is connected to the grounding capacitor C1, the other end of the resistor R7 is connected to the seventh pin of the optocoupler U2, the other end of the resistor R2 is connected to the first pin of the solid-state relay J2, the second pin of the solid-state relay J2 is connected to the second pin of the 7-core socket, the third pin of the solid-state relay J2 serves as the sixth pin of the wiring socket JK2, and the fourth pin of the solid-state relay J2 serves as the sixth pin of the wiring socket JK 2, the 1st pin of the optical coupler U2 is connected to one end of the resistor R6, the 2nd pin of the optical coupler U2 is respectively connected to the 8th pin of the relay J3 and the 2nd pin of the solid-state relay J1, the other end of the resistor R1 is connected to the 1st pin of the solid-state relay J1, the 3rd pin of the solid-state relay J1 serves as the 6th pin of the wiring socket JK2, the 4th pin of the solid-state relay J1 serves as the 3rd pin of the wiring socket JK2, the 3rd pin of the optical coupler U2 is connected to the other end of the resistor R9, the 4th pin of the optical coupler U2 is connected to the 5th pin of the 7-core socket The 5th pin of the optical coupler U2 is connected to the ground, the 6th pin of the optical coupler U2 is connected to the 16th pin of the relay J3, the 1st pin of the relay J3 is connected to the other end of the resistor R8, the 4th pin of the relay J3 is connected to the 3rd pin of the 7-core socket, one end of the snow monitoring switch is connected to the 2nd pin of the 7-core socket, the other end of the snow monitoring switch is respectively connected to the 5th pin of the 7-core socket and the other end of the resistor R4, the 6th pin of the 7-core socket is the power supply +30V of the snow melting heating film, and the 7th pin of the 7-core socket is the +30V power supply ground of the snow melting heating film;

[0016] The power input terminal of the first snow blowing module is connected to the 3rd pin of the cable socket JK2, and the power ground terminal of the first snow blowing module is connected to the 6th pin of the cable socket JK2;

[0017] The power input terminal of the second snow blowing module is connected to the first pin of the cable socket JK2, and the power ground terminal of the second snow blowing module is connected to the sixth pin of the cable socket JK2;

[0018] The second pin, the fourth pin and the fifth pin of the cable socket JK2 are all neutral wires, the first pin and the third pin of the cable socket JK2 are all live wires, and the sixth pin of the cable socket JK2 is a ground wire;

[0019] The 7-core socket is connected to the THDS device via a 7-core cable.

[0020] Furthermore: the normally closed contact of the AC contactor is connected to the AC220V output of the snowblowing control panel, and the normally open contact of the AC contactor is connected to the PDU power supply.

[0021] Further: the snow sensor is a 6-wire connection method:

[0022] In the A-type snow blower control board, the first connection line of the snow sensor is connected to the A+15V power supply, the fifth connection line and the sixth connection line of the snow sensor are connected in parallel as the ground line AGND, the fourth connection line of the snow sensor is the sensor information output terminal, and the second connection line and the third connection line of the snow sensor are not used;

[0023] In the Type B snowblower control panel, the 1st connecting wire of the snow sensor is connected to the A+15V power supply, the 5th connecting wire and the 6th connecting wire of the snow sensor are connected in parallel as the ground wire AGND, the 4th connecting wire of the snow sensor is the sensor information output terminal, and the 2nd connecting wire and the 3rd connecting wire of the snow sensor are not used.

[0024] Furthermore: the input end of the PDU power supply is an AC220V socket, and the output end of the PDU power supply is a normally open contact of an AC contactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A system structure diagram of a snow removal device for a THDS system;

[0026] Figure 2 This is the circuit schematic diagram of the snowblowing control board of the A-type machine;

[0027] Figure 3 This is the circuit schematic of the B-type machine snowblowing control board. DETAILED DESCRIPTION

[0028] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0029] like Figure 1 As shown, in one embodiment of the utility model, the utility model provides a snow removal device for a THDS system, including: a snow blowing control panel, AC contactors respectively connected to the snow blowing control panel, a snow accumulation sensor, a snow blowing module, a PDU power supply and a 30V switching power supply respectively connected to the AC contactors, and a snow melting heating film connected to the 30V switching power supply.

[0030] The snowblowing control panel is a type A snowblowing control panel or a type B snowblowing control panel, and the snowblowing module includes a first snowblowing module and a second snowblowing module, and both the first snowblowing module and the second snowblowing module are connected to the snowblowing control panel.

[0031] In the embodiment of the present utility model, Figure 2 As shown, it is the circuit schematic diagram of the A-type snowblowing control board. The A-type snowblowing control board includes: timer U1, optical coupler U2, power module U3, solid-state relay J1, solid-state relay J2, relay J3, snow monitoring switch and 7-core socket;

[0032] The first pin of the timer U1 is respectively connected to one end of the resistor R7 and the negative electrode of the polarity capacitor C2, and is grounded. The second pin of the timer U1 is respectively connected to one end of the resistor R5, the 8th pin of the optocoupler U2, the positive electrode of the polarity capacitor C2 and the 6th pin of the timer U1. The third pin of the timer U1 is connected to one end of the resistor R2. The fourth pin of the timer U1 is respectively connected to the other end of the resistor R5, the 8th pin of the timer U1, the 3rd pin of the power module U3, one end of the resistor R3 and one end of the resistor R8. The other end of the resistor R3 is connected to the positive electrode of the light-emitting diode D1, and the negative electrode of the light-emitting diode is connected to the 4th pin of the 7-pin socket. The timer U1 The 5th pin of is connected to the grounding capacitor C1, the other end of the resistor R7 is connected to the 7th pin of the optocoupler U2, the other end of the resistor R2 is connected to the 1st pin of the solid-state relay J2, the 2nd pin of the solid-state relay J2 is connected to the 4th pin of the 7-core socket, the 3rd pin of the solid-state relay J2 serves as the 6th pin of the wiring socket JK2, the 4th pin of the solid-state relay J2 serves as the 1st pin of the wiring socket JK2, the 1st pin of the optocoupler U2 is connected to one end of the resistor R6, the other end of the resistor R6 is respectively connected to one end of the resistor R1 and the 5th pin of the relay J3, the other end of the resistor R1 is connected to the 1st pin of the solid-state relay J1, the solid-state relay J1 The second pin of the optocoupler U2 is connected to the fourth pin of the 7-core socket, the third pin of the solid-state relay J1 is used as the sixth pin of the wiring socket JK2, the fourth pin of the solid-state relay J1 is used as the third pin of the wiring socket JK2, the second pin of the optocoupler U2 is connected to the fourth pin of the 7-core socket, the third pin of the optocoupler U2 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to the first pin of the 7-core socket, the fourth pin of the optocoupler U2 is connected to the fifth pin of the 7-core socket, the fifth pin of the optocoupler U2 is connected to the fourth pin of the 7-core socket and grounded, the sixth pin of the optocoupler U2 is connected to the first pin of the relay J3, the second pin of the relay J3 is connected to the resistor The other end of R8 is connected, the 3rd pin of relay J3 is connected to the 3rd pin of 7-core socket, the 1st pin of power module U3 is connected to the 1st pin of 7-core socket, the 2nd pin of power module U3 is connected to the 2nd pin of 7-core socket, the 4th pin of power module U3 is connected to the 4th pin of 7-core socket, one end of snow monitoring switch is connected to the 2nd pin of 7-core socket, the other end of snow monitoring switch is respectively connected to the 5th pin of 7-core socket and one end of resistor R4, the other end of resistor R4 is connected to the 1st pin of 7-core socket, the 6th pin of 7-core socket is the power supply +30V of snow melting heating film, and the 7th pin of 7-core socket is the +30V power ground of snow melting heating film;

[0033] The power input terminal of the first snow blowing module is connected to the 3rd pin of the cable socket JK2, and the power ground terminal of the first snow blowing module is connected to the 6th pin of the cable socket JK2;

[0034] The power input terminal of the second snow blowing module is connected to the first pin of the cable socket JK2, and the power ground terminal of the second snow blowing module is connected to the sixth pin of the cable socket JK2;

[0035] The second pin, the fourth pin and the fifth pin of the cable socket JK2 are all neutral wires, the first pin of the cable socket JK2 is a live wire, and the sixth pin of the cable socket JK2 is a ground wire;

[0036] The 7-core socket is connected to the THDS device via a 7-core cable.

[0037] In the embodiment of the present utility model, Figure 3 As shown, it is the circuit schematic diagram of the B-type snowblowing control board. The B-type snowblowing control board includes: timer U1, optical coupler U2, solid-state relay J1, solid-state relay J2, relay J3, snow monitoring switch and 7-core socket;

[0038] The first pin of the timer U1 is respectively connected to one end of the resistor R7 and the negative electrode of the polar capacitor C2, and is grounded. The second pin of the timer U1 is respectively connected to one end of the resistor R5, the eighth pin of the optocoupler U2, the positive electrode of the polar capacitor C2, and the sixth pin of the timer U1. The third pin of the timer U1 is connected to one end of the resistor R2. The fourth pin of the timer U1 is respectively connected to the other end of the resistor R5, the eighth pin of the timer U1, one end of the resistor R1, one end of the resistor R3, one end of the resistor R4, one end of the resistor R6, one end of the resistor R8, and one end of the resistor R9. One end of the resistor R3 is connected to the positive electrode of the light-emitting diode D1, the negative electrode of the light-emitting diode is connected to the second pin of the 7-pin socket, the fifth pin of the timer U1 is connected to the grounding capacitor C1, the other end of the resistor R7 is connected to the seventh pin of the optocoupler U2, the other end of the resistor R2 is connected to the first pin of the solid-state relay J2, the second pin of the solid-state relay J2 is connected to the second pin of the 7-pin socket, the third pin of the solid-state relay J2 is used as the sixth pin of the wiring socket JK2, and the fourth pin of the solid-state relay J2 is used as the wiring socket JK2. The first pin of the wiring socket JK2 is connected to the first pin of the optocoupler U2, the first pin of the optocoupler U2 is connected to one end of the resistor R6, the second pin of the optocoupler U2 is connected to the fifth pin of the relay J3 and the second pin of the solid-state relay J1 respectively, the other end of the resistor R1 is connected to the first pin of the solid-state relay J1, the third pin of the solid-state relay J1 serves as the sixth pin of the wiring socket JK2, the fourth pin of the solid-state relay J1 serves as the third pin of the wiring socket JK2, the third pin of the optocoupler U2 is connected to the other end of the resistor R9, the fourth pin of the optocoupler U2 is connected to the 5 pins are connected, the 5th pin of the optocoupler U2 is grounded, the 6th pin of the optocoupler U2 is connected to the 1st pin of the relay J3, the 2nd pin of the relay J3 is connected to the other end of the resistor R8, the 3rd pin of the relay J3 is connected to the 3rd pin of the 7-core socket, one end of the snow monitoring switch is connected to the 2nd pin of the 7-core socket, the other end of the snow monitoring switch is respectively connected to the 5th pin of the 7-core socket and the other end of the resistor R4, the 6th pin of the 7-core socket is the power supply +30V of the snow melting heating film, and the 7th pin of the 7-core socket is the +30V power supply ground of the snow melting heating film;

[0039] The power input terminal of the first snow blowing module is connected to the 3rd pin of the cable socket JK2, and the power ground terminal of the first snow blowing module is connected to the 6th pin of the cable socket JK2;

[0040] The power input terminal of the second snow blowing module is connected to the first pin of the cable socket JK2, and the power ground terminal of the second snow blowing module is connected to the sixth pin of the cable socket JK2;

[0041] The second, fourth and fifth pins of the cable socket JK2 are all neutral wires, the first and third pins of the cable socket JK2 are all live wires, and the sixth pin of the cable socket JK2 is a ground wire;

[0042] The 7-core socket is connected to the THDS device via a 7-core cable.

[0043] Among them, the snow-melting heating film is a heating film, which is powered by a switching power supply. The resistance of the heating film is about 25 ohms, the heating current is about 1A, and the heating temperature is controlled at 60°C. The thermostat stops heating after sensing about 60°C + 3°C, and starts heating again when the temperature is lower than about 55°C.

[0044] In this embodiment, in the A-type snowblower control panel, the definition of each pin of the 7-pin socket and the connection relationship with other devices are shown in Table 1:

[0045] Table 1

[0046]

[0047]

[0048] In this embodiment, in the B-type snowblower control panel, the definition of each pin of the 7-pin socket and the connection relationship with other devices are shown in Table 2:

[0049] Table 2

[0050]

[0051] Among them, the first pin and the second pin of the 7-core socket are connected to the THDS device system through a 7-core cable.

[0052] In an embodiment of the utility model, the snow-melting heating film is powered by a +30V switching power supply, the resistance of the heating film is about 25 ohms, the heating current is about 1A, the heating temperature is controlled at 60°C, and the heating is stopped when the temperature reaches about 60°C + 3°C, and the heating is started again when the temperature is lower than about 55°C; the heating film is pasted on the inclined surface of the probe optical path window of the THDS protection box, and can heat and remove the accumulated snow that falls into the window, thereby preventing the accumulated snow from blocking the probe optical path and causing faults such as low temperature measurement.

[0053] In an embodiment of the utility model, the normally closed contact of the AC contactor is connected to the AC220V output of the snowblowing control panel, and the normally open contact of the AC contactor is connected to the PDU power supply.

[0054] In the embodiment of the present utility model, the snow sensor is a 6-wire connection method:

[0055] In the A-type snow blower control board, the first connection line of the snow sensor is connected to the A+15V power supply, the fifth and sixth connection lines of the snow sensor are connected in parallel as the ground line AGND, the fourth connection line of the snow sensor is the sensor information output terminal, and the second and third connection lines of the snow sensor are not used. When the sensor signal output terminal is at a low level, it means that there is snow accumulation and the snow monitoring switch is closed. When the signal output terminal is at a high level, it means that there is no snow accumulation and the snow monitoring switch is open.

[0056] In the B-type machine snowblower control board, the first connection line of the snow sensor is connected to the A+15V power supply, the fifth and sixth connection lines of the snow sensor are connected in parallel as the ground line AGND, the fourth connection line of the snow sensor is the sensor information output terminal, and the second and third connection lines of the snow sensor are not used. When the sensor signal output terminal is at a low level, it means that there is snow accumulation and the snow monitoring switch is closed. When the signal output terminal is at a high level, it means that there is no snow accumulation and the snow monitoring switch is open.

[0057] Among them, the first connecting line is brown, the second connecting line is yellow, the third connecting line is blue, the fourth connecting line is green, the fifth connecting line is white, and the sixth connecting line is black.

[0058] In the embodiment of the utility model, the input end of the PDU power supply is an AC220V socket, and the output end of the PDU power supply is a normally open contact of the AC contactor.

[0059] In the embodiment of the utility model, the model of the timer U1 is NE555, the model of the optical coupler U2 is TLP521-2, the model of the power module U3 is SR5D-15S15, the model of the solid-state relay J1 is JGX-5F, the model of the solid-state relay J2 is JGX-5F, and the model of the relay J3 is HRS2H-S-DC12. Figure 2 , Figure 3 And the corresponding schematic diagram describes the working principle of the circuit:

[0060] In the A-type snowblowing control board, after the snowblowing control board is powered on, capacitor C2 is charged through resistor R5. When the voltage on capacitor C2 exceeds 2 / 3P+15V (about 10V), pin 3 of timer U1 outputs a low level.

[0061] After the snow sensor detects snow accumulation, the signal output end of the snow sensor shows a low level, the snow monitoring switch is closed, and JXXH outputs a low level. After JXXH is low, the second optical coupler of the optical coupler U2 is turned on, the relay J3 is energized, and the CXKZ+ signal is output to CXKZ; if CXKZ+ is valid at this time (P+30V level), CXKZ is high level, and the solid-state relay J1 is energized, the AC220L1 output is valid, and the fan 1 starts to work; while CXKZ is high level, the first optical coupler of the optical coupler U2 is turned on, and the capacitor C2 is discharged through the resistor R7. When the voltage on the capacitor C2 is lower than 1 / 3P+15V (about 5V), the 3rd pin CXKZ2 of the timer U1 outputs a high level (about P+15V), controls the solid-state relay J2 to be energized, the AC220L2 output is valid, and the fan 2 starts to work;

[0062] When the CXKZ+ signal is in a suspended state (not P+30V), CXKZ is a suspended signal, the solid-state relay J1 is released, the AC220L1 output is invalid, and the fan 1 stops working; at the same time, the first optocoupler of the optocoupler U2 is cut off, and the capacitor C2 is charged through the resistor R5. When the voltage on the capacitor C2 exceeds 2 / 3P+15V (about 10V), the 3rd pin of the timer U1 outputs a low level, the solid-state relay J2 is released, the AC220L2 output is invalid, and the fan 2 stops working;

[0063] When the snow sensor detects no snow, JXXH outputs a high level, relay J3 is released, CXKZ is suspended, fan 1 stops working, and fan 2 stops working after a delay of about 10 seconds.

[0064] In the B-type control board, after the snow blowing control board is powered on, capacitor C2 is charged through resistor R5. When the voltage on capacitor C2 exceeds 2 / 3P+15V (about 10V), pin 3 of timer U1 outputs a low level.

[0065] After the snow sensor detects snow accumulation, the snow monitoring switch is closed, and JXXH outputs a low level. After JXXH is at a low level, the second optocoupler of the optocoupler U2 is turned on, the relay J3 is energized, and the CXKZ+ signal is output to CXKZ; if CXKZ+ is valid at this time (PGND level), CXKZ is at a low level, and the solid-state relay J1 is energized, the AC220-1L output is valid, and the fan 1 starts to work; while CXKZ is at a low level, the first optocoupler of the optocoupler U2 is turned on, and the capacitor C2 is discharged through the resistor R7. When the voltage on the capacitor C2 is lower than 1 / 3P+15V (about 5V), the 3-pin CXKZ2 of the timer U1 outputs a high level (about P+15V), which controls the solid-state relay J2 to be energized, the AC220-2L output is valid, and the fan 2 starts to work;

[0066] When the CXKZ+ signal is in a suspended state (non-PGND level), CXKZ is a suspended signal, the solid-state relay J1 is released, the AC220L1 output is invalid, and the fan 1 stops working; at the same time, the first optocoupler of the optocoupler U2 is cut off, and the capacitor C2 is charged through the resistor R5. When the voltage on the capacitor C2 exceeds 2 / 3P+15V (about 10V), the pin 3 of the timer U1 outputs a low level, the solid-state relay J2 is released, the AC220-2L output is invalid, and the fan 2 stops working;

[0067] When the snow sensor detects no snow, JXXH outputs high level, relay J3 is released, CXKZ is suspended, fan 1 stops working, and fan 2 stops working after a delay of about 10 seconds.

[0068] The beneficial effects of the utility model are as follows: the utility model designs a snowblowing control board, which can sense whether there is snow accumulation through a snow accumulation sensor. When there is snow accumulation, it automatically controls the snowblowing module to blow snow and controls the snowmelt heating film to melt snow, thereby realizing automatic snow removal. The utility model can remotely control the PDU power supply to enable the snowblowing control board to automatically monitor and remove snow, thereby realizing the automation of snow removal and snow melting, and can ensure the normal operation of the THDS equipment probe during the snow season.

Claims

1. A snow removal device for a THDS system, characterized in that: include: A snowblowing control panel, an AC contactor respectively connected to the snowblowing control panel, a snow accumulation sensor, a snowblowing module, a PDU power supply and a 30V switching power supply respectively connected to the AC contactor, and a snow melting heating film connected to the 30V switching power supply.

2. The snow removal device for THDS system according to claim 1, characterized in that: The snow blowing control panel is a type A snow blowing control panel or a type B snow blowing control panel; the snow blowing module includes a first snow blowing module and a second snow blowing module, and the first snow blowing module and the second snow blowing module are both connected to the snow blowing control panel.

3. The snow removal device for THDS system according to claim 2, characterized in that: The A-type snowblower control panel includes: a timer U1, an optical coupler U2, a power module U3, a solid-state relay J1, a solid-state relay J2, a relay J3, a snow monitoring switch and a 7-core socket; The first pin of the timer U1 is respectively connected to one end of the resistor R7 and the negative electrode of the polarity capacitor C2, and is grounded. The second pin of the timer U1 is respectively connected to one end of the resistor R5, the 8th pin of the optocoupler U2, the positive electrode of the polarity capacitor C2 and the 6th pin of the timer U1. The third pin of the timer U1 is connected to one end of the resistor R2. The fourth pin of the timer U1 is respectively connected to the other end of the resistor R5, the 8th pin of the timer U1, the 3rd pin of the power module U3, one end of the resistor R3 and one end of the resistor R8. The other end of the resistor R3 is connected to the positive electrode of the light-emitting diode D1, and the negative electrode of the light-emitting diode is connected to the 4th pin of the 7-core socket. The 5th pin is connected to the grounding capacitor C1, the other end of the resistor R7 is connected to the 7th pin of the optical coupler U2, the other end of the resistor R2 is connected to the 1st pin of the solid-state relay J2, the 2nd pin of the solid-state relay J2 is connected to the 4th pin of the 7-core socket, the 3rd pin of the solid-state relay J2 serves as the 6th pin of the wiring socket JK2, the 4th pin of the solid-state relay J2 serves as the 1st pin of the wiring socket JK2, the 1st pin of the optical coupler U2 is connected to one end of the resistor R6, the other end of the resistor R6 is respectively connected to one end of the resistor R1 and the 8th pin of the relay J3, the other end of the resistor R1 is connected to the 1st pin of the solid-state relay J1, the 2nd pin of the solid-state relay J1 is connected to The 4th pin of the 7-core socket is connected, the 3rd pin of the solid-state relay J1 is used as the 6th pin of the wiring socket JK2, the 4th pin of the solid-state relay J1 is used as the 3rd pin of the wiring socket JK2, the 2nd pin of the optical coupler U2 is connected to the 4th pin of the 7-core socket, the 3rd pin of the optical coupler U2 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to the 1st pin of the 7-core socket, the 4th pin of the optical coupler U2 is connected to the 5th pin of the 7-core socket, the 5th pin of the optical coupler U2 is connected to the 4th pin of the 7-core socket and is grounded, the 6th pin of the optical coupler U2 is connected to the 16th pin of the relay J3, the 1st pin of the relay J3 is connected to the resistor R 8, the 4th pin of the relay J3 is connected to the 3rd pin of the 7-core socket, the 1st pin of the power module U3 is connected to the 1st pin of the 7-core socket, the 2nd pin of the power module U3 is connected to the 2nd pin of the 7-core socket, the 4th pin of the power module U3 is connected to the 4th pin of the 7-core socket, one end of the snow monitoring switch is connected to the 2nd pin of the 7-core socket, the other end of the snow monitoring switch is respectively connected to the 5th pin of the 7-core socket and one end of the resistor R4, the other end of the resistor R4 is connected to the 1st pin of the 7-core socket, the 6th pin of the 7-core socket is the power supply +30V of the snow melting heating film, and the 7th pin of the 7-core socket is the +30V power ground of the snow melting heating film; The power input terminal of the first snow blowing module is connected to the 3rd pin of the cable socket JK2, and the power ground terminal of the first snow blowing module is connected to the 6th pin of the cable socket JK2; The power input terminal of the second snow blowing module is connected to the first pin of the cable socket JK2, and the power ground terminal of the second snow blowing module is connected to the sixth pin of the cable socket JK2; The second pin, the fourth pin and the fifth pin of the cable socket JK2 are all neutral wires, the first pin of the cable socket JK2 is a live wire, and the sixth pin of the cable socket JK2 is a ground wire; The 7-core socket is connected to the THDS device via a 7-core cable.

4. The snow removal device for THDS system according to claim 2, characterized in that: The B-type snowblower control panel includes: a timer U1, an optical coupler U2, a solid-state relay J1, a solid-state relay J2, a relay J3, a snow monitoring switch and a 7-core socket; The first pin of the timer U1 is respectively connected to one end of the resistor R7 and the negative electrode of the polar capacitor C2, and is grounded. The second pin of the timer U1 is respectively connected to one end of the resistor R5, the eighth pin of the optical coupler U2, the positive electrode of the polar capacitor C2, and the sixth pin of the timer U1. The third pin of the timer U1 is connected to one end of the resistor R2. The fourth pin of the timer U1 is respectively connected to the other end of the resistor R5, the eighth pin of the timer U1, one end of the resistor R1, one end of the resistor R3, one end of the resistor R4, one end of the resistor R6, one end of the resistor R8, and one end of the resistor R9. and the first pin of the 7-core socket, the other end of the resistor R3 is connected to the positive electrode of the light-emitting diode D1, the negative electrode of the light-emitting diode is connected to the second pin of the 7-core socket, the fifth pin of the timer U1 is connected to the grounding capacitor C1, the other end of the resistor R7 is connected to the seventh pin of the optocoupler U2, the other end of the resistor R2 is connected to the first pin of the solid-state relay J2, the second pin of the solid-state relay J2 is connected to the second pin of the 7-core socket, the third pin of the solid-state relay J2 serves as the sixth pin of the wiring socket JK2, and the fourth pin of the solid-state relay J2 serves as the sixth pin of the wiring socket JK 2, the 1st pin of the optical coupler U2 is connected to one end of the resistor R6, the 2nd pin of the optical coupler U2 is respectively connected to the 8th pin of the relay J3 and the 2nd pin of the solid-state relay J1, the other end of the resistor R1 is connected to the 1st pin of the solid-state relay J1, the 3rd pin of the solid-state relay J1 serves as the 6th pin of the wiring socket JK2, the 4th pin of the solid-state relay J1 serves as the 3rd pin of the wiring socket JK2, the 3rd pin of the optical coupler U2 is connected to the other end of the resistor R9, the 4th pin of the optical coupler U2 is connected to the 5th pin of the 7-core socket The 5th pin of the optical coupler U2 is connected to the ground, the 6th pin of the optical coupler U2 is connected to the 16th pin of the relay J3, the 1st pin of the relay J3 is connected to the other end of the resistor R8, the 4th pin of the relay J3 is connected to the 3rd pin of the 7-core socket, one end of the snow monitoring switch is connected to the 2nd pin of the 7-core socket, the other end of the snow monitoring switch is respectively connected to the 5th pin of the 7-core socket and the other end of the resistor R4, the 6th pin of the 7-core socket is the power supply +30V of the snow melting heating film, and the 7th pin of the 7-core socket is the +30V power supply ground of the snow melting heating film; The power input terminal of the first snow blowing module is connected to the 3rd pin of the cable socket JK2, and the power ground terminal of the first snow blowing module is connected to the 6th pin of the cable socket JK2; The power input terminal of the second snow blowing module is connected to the first pin of the cable socket JK2, and the power ground terminal of the second snow blowing module is connected to the sixth pin of the cable socket JK2; The second pin, the fourth pin and the fifth pin of the cable socket JK2 are all neutral wires, the first pin and the third pin of the cable socket JK2 are all live wires, and the sixth pin of the cable socket JK2 is a ground wire; The 7-core socket is connected to the THDS device via a 7-core cable.

5. The snow removal device for THDS system according to claim 1, characterized in that: The normally closed contact of the AC contactor is connected to the AC220V output of the snowblowing control panel, and the normally open contact of the AC contactor is connected to the PDU power supply.

6. The snow removal device for THDS system according to claim 4, characterized in that: The snow sensor is a 6-wire connection method: In the A-type snow blower control board, the first connection line of the snow sensor is connected to the A+15V power supply, the fifth connection line and the sixth connection line of the snow sensor are connected in parallel as the ground line AGND, the fourth connection line of the snow sensor is the sensor information output terminal, and the second connection line and the third connection line of the snow sensor are not used; In the Type B snowblower control panel, the 1st connecting wire of the snow sensor is connected to the A+15V power supply, the 5th connecting wire and the 6th connecting wire of the snow sensor are connected in parallel as the ground wire AGND, the 4th connecting wire of the snow sensor is the sensor information output terminal, and the 2nd connecting wire and the 3rd connecting wire of the snow sensor are not used.

7. The snow removal device for THDS system according to claim 1, characterized in that: The input end of the PDU power supply is an AC220V socket, and the output end of the PDU power supply is a normally open contact of an AC contactor.

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