Switch control device for cable thermal shrinkage sealing equipment

Abstract

The utility model discloses a switch control device for cable thermal shrinkage sealing equipment in the field of circuit control, which comprises a fan module comprising a fan, a first normally open relay and a first triode; the heater module comprises a heater, a second normally open relay and a second triode; the delay control module is used for controlling the first triode and the second triode; the power supply module is used for supplying power to the fan, the heater and the delay control module; the beneficial effects of the utility model are that: through setting up the time delay control module, through the triode and the normally open relay to control the start-stop order and the start duration of the fan and the heater, the control is more accurate, can effectively avoid the device damage caused by the start-stop order, prolong the service life.

Description

Technical Field

[0001] This utility model relates to the field of circuit control, specifically to a switch control device for cable heat shrink sealing equipment. Background Technology

[0002] Cable heat shrink sealing equipment is commonly used for the heat shrinking process of cables. It consists of a fan and a heater. During operation, the air generated by the fan passes through the barrel-shaped heater and becomes hot air, which is then blown onto the heat shrink tubing on the outside of the cable, causing the tubing to shrink and thus completing the heat sealing process. However, existing equipment usually does not properly control the start-up and shutdown sequence of the fan and heater. If the fan and heater start or stop simultaneously, the lifespan of the components may be shortened due to heat accumulation. In particular, the heater may be damaged if the fan stops too early or starts too late.

[0003] Therefore, how to reasonably control the starting sequence of the fan and the heater during the equipment start-up and shutdown process has become a technical problem that urgently needs to be solved.

[0004] Therefore, we propose a switch control device for cable heat shrink sealing equipment. Summary of the Invention

[0005] To address the aforementioned shortcomings of the existing technology, this utility model provides a switch control device for cable heat shrink sealing equipment.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A switch control device for cable heat shrink sealing equipment includes: a fan module, including a fan, a first normally open relay and a first transistor, wherein the fan is controlled by the first normally open relay and the first transistor; a heater module, including a heater, a second normally open relay and a second transistor, wherein the heater is controlled by the second normally open relay and the second transistor; a delay control module for controlling the first transistor and the second transistor; and a power supply module for supplying power to the fan, the heater and the delay control module.

[0008] By setting normally open relays and transistors to control the start and stop of the heater and fan, and by using a delay control module to control the start and stop sequence of the fan and heater, and by controlling the start and stop of the fan and heater according to the preset delay, it is possible to achieve reasonable start and stop sequence and start-up time control of the fan and heater, avoid damage to the fan or heater, and effectively extend the service life of the cable heat shrink sealing equipment.

[0009] Furthermore, both the first and second transistors are NPN transistors.

[0010] To be further specified, the power module includes both DC power and AC power.

[0011] Further specifying, the delay control module includes a microcontroller, which is connected to a DC power supply via a system power supply circuit, and the system power supply circuit is grounded.

[0012] Further specified, the fan is connected to the AC power supply through the first power supply circuit, the switching terminal of the first normally open relay is connected to the first power supply circuit, the electromagnetic terminal of the first normally open relay is connected to the microcontroller through the first transistor, and the base of the first transistor is connected to the output port of the microcontroller, the collector and the positive terminal of the DC power supply are both connected to the microcontroller, and the emitter is connected to the negative terminal of the DC power supply and the microcontroller through the electromagnetic terminal of the first normally open relay.

[0013] Further specified, the heater is connected to the AC power supply through the second power supply circuit, the switching terminal of the second normally open relay is connected to the second power supply circuit, the electromagnetic terminal of the second normally open relay is connected to the microcontroller through the second transistor, and the base of the second transistor is connected to the output port of the microcontroller, the collector and the positive terminal of the DC power supply are both connected to the microcontroller, and the emitter is connected to the negative terminal of the DC power supply and the microcontroller through the electromagnetic terminal of the second normally open relay.

[0014] Further specified, a first voltage divider resistor is provided between the base of the first transistor and the microcontroller, a second voltage divider resistor is connected between the first voltage divider resistor and the base of the first transistor, and the second voltage divider resistor is connected to the emitter of the first transistor.

[0015] Further specified, a third voltage divider resistor is provided between the base of the second transistor and the microcontroller, a second voltage divider resistor is connected between the third voltage divider resistor and the base of the second transistor, and the second voltage divider resistor is connected to the emitter of the second transistor.

[0016] Further, it also includes two jog switches connected to the microcontroller, and the two jog switches are respectively connected to the electromagnetic terminals of the first normally open relay and the second normally open relay, and the jog switches are grounded to the electromagnetic terminals.

[0017] The beneficial effects of this utility model are as follows: by setting a delay control module and controlling the start-up and shutdown sequence and start-up duration of the fan and heater through transistors and normally open relays, the control is more precise, which can effectively avoid damage to the device caused by the start-up and shutdown sequence and extend its service life. Attached Figure Description

[0018] Figure 1 This is a connection diagram of the present invention;

[0019] Figure 2 This is a flowchart of the delay control procedure.

[0020] The symbols for each component are as follows:

[0021] Fan module 1, fan 11, first normally open relay 12, first transistor 13, first power supply circuit 14, first voltage divider resistor 15, second voltage divider resistor 16, heater module 2, heater 21, second normally open relay 22, second transistor 23, second power supply circuit 24, third voltage divider resistor 25, fourth voltage divider resistor 26, delay control module 3, microcontroller 31, system power supply circuit 32, jog switch 33, power supply module 4, DC power supply 41, AC power supply 42. Detailed Implementation

[0022] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0023] Example:

[0024] like Figure 1As shown, a switching control device for cable heat shrink sealing equipment includes a fan module 1, a heater module 2, a delay control module 3, and a power supply module 4. The fan module 1 includes a fan 11, a first normally open relay 12, and a first transistor 13, with the fan 11 controlled by the first normally open relay 12 and the first transistor 13. The heater module 2 includes a heater 21, a second normally open relay 22, and a second transistor 23, with the heater 21 controlled by the second normally open relay 22 and the second transistor 23. The delay control module 3 controls the first transistor 13 and the second transistor 23. The delay control module 3 includes a microcontroller 31, which is connected to a DC power supply via a system power supply circuit 32. The system power supply circuit 32 is grounded; the power supply module 4 includes a DC power supply 41 and an AC power supply 42; the power supply module 4 is used to power the fan 11, the heater 21 and the delay control module 3; the AC power supply 42 powers the fan 11 and the heater 21, and the DC power supply 41 powers the delay control module 3; the fan 11 is connected to the AC power supply 42 through the first power supply circuit 14, the switching terminal of the first normally open relay 12 is connected to the first power supply circuit 14, the electromagnetic terminal of the first normally open relay 12 is connected to the microcontroller 31 through the first transistor 13, and the base of the first transistor 13 is connected to the output port of the microcontroller 31, and the collector and the positive terminal of the DC power supply 41 are both connected to the microcontroller. The microcontroller 31 is connected to the DC power supply 41 and its emitter via the electromagnetic terminal of the first normally open relay 12. A first voltage divider resistor 15 is provided between the base of the first transistor 13 and the microcontroller 31. A second voltage divider resistor 16 is connected between the first voltage divider resistor 15 and the base of the first transistor 13, and the second voltage divider resistor 16 is connected to the emitter of the first transistor 13. The heater 21 is connected to the AC power supply 42 via the second power supply circuit 24. The switching terminal of the second normally open relay 22 is connected to the second power supply circuit 24. The electromagnetic terminal of the second normally open relay 22 is connected to the microcontroller 31 via the second transistor 23, and the base of the second transistor 23 is connected to the microcontroller 31. The output port, collector, and positive terminal of DC power supply 41 are all connected to microcontroller 31. The emitter is connected to the negative terminal of DC power supply 41 and microcontroller 31 through the electromagnetic terminal of the second normally open relay 22. A third voltage divider resistor 25 is provided between the base of the second transistor 23 and microcontroller 31. A second voltage divider resistor 26 is connected between the third voltage divider resistor 25 and the base of the second transistor 23, and the second voltage divider resistor 26 is connected to the emitter of the second transistor 23. It also includes two jog switches 33 connected to microcontroller 31. The two jog switches 33 are respectively connected to the electromagnetic terminal of the first normally open relay 12 and the electromagnetic terminal of the second normally open relay 22, and the jog switches 33 are grounded to the electromagnetic terminal.The microcontroller 31 is preferably an STM32F103; the first transistor 13 and the second transistor 23 are preferably TIP120 NPN transistors; and the first normally open relay 12 and the second normally open relay 22 are preferably SSR-40DA solid-state relays.

[0025] By setting normally open relays and transistors to control the start and stop of the heater 21 and the fan 11, and by using the delay control module 3 to control the start and stop sequence of the fan 11 and the heater 21, and by controlling the start and stop of the fan 11 and the heater 21 according to the preset delay, it is possible to achieve reasonable start and stop sequence and start-up time control of the fan 11 and the heater 21, avoid damage to the fan 11 or the heater 21, and effectively extend the service life of the cable heat shrink sealing equipment.

[0026] like Figure 2 As shown, Figure 2 Buttons 1 and 2 are two momentary switches 33. During operation, pressing one of the momentary switches 33 triggers the system to start. When the system starts, the microcontroller 31 sets the port connected to the base of the first transistor 13 to a high level. This high level controls the first transistor 13 to conduct, thereby driving the output terminal of the first normally open relay 12 to close. At this time, the fan 11 is powered on and running. The microcontroller 31 starts a delay program, preferably a delay of 30 seconds. After the set delay time is reached, the microcontroller 31 sets the port connected to the base of the second transistor 23 to a high level. This high level controls the second transistor 23 to conduct, thereby driving the output terminal of the second normally open relay 22 to close. At this time, the heater 21 is powered on. When the power is on, the fan 11 blows out the hot air generated by the heater 21, causing the heat shrink tubing on the cable to shrink and complete the cable encapsulation. After encapsulation is complete, pressing another jog switch 33 triggers the system to shut down. The microcontroller 31 first sets the port connected to the base of the second transistor 23 to a low level, and the second transistor 23 disconnects the drive current of the second normally open relay 22. The heater 21 is powered off and stops working. At this time, the microcontroller 31 starts a delay program, preferably a delay of 30 seconds. After the set delay time is reached, the microcontroller 31 sets the port connected to the base of the first transistor 13 to a low level, and the first transistor 13 disconnects the drive current of the first relay. The fan 11 stops working, and the system returns to standby mode.

Claims

1. A switch control device for cable heat shrink sealing equipment, characterized in that, include: The fan module (1) includes a fan (11), a first normally open relay (12) and a first transistor (13), wherein the fan (11) is controlled by the first normally open relay (12) and the first transistor (13); The heating module (2) includes a heating element (21), a second normally open relay (22), and a second transistor (23). The heating element (21) is controlled by the second normally open relay (22) and the second transistor (23). The delay control module (3) controls the first transistor (13) and the second transistor (23); The power supply module (4) is used to supply power to the fan (11), the heater (21) and the delay control module (3).

2. The switch control device for cable heat shrink sealing equipment according to claim 1, characterized in that, Both the first transistor (13) and the second transistor (23) are NPN transistors.

3. The switch control device for cable heat shrink sealing equipment according to claim 2, characterized in that, The power module (4) includes a DC power supply (41) and an AC power supply (42).

4. The switch control device for cable heat shrink sealing equipment according to claim 3, characterized in that, The delay control module (3) includes a microcontroller (31), which is connected to a DC power supply (41) via a system power supply circuit (32) and is grounded.

5. The switch control device for cable heat shrink sealing equipment according to claim 4, characterized in that, The fan (11) is connected to the AC power supply (42) through the first power supply circuit (14). The switching terminal of the first normally open relay (12) is connected to the first power supply circuit (14). The electromagnetic terminal of the first normally open relay (12) is connected to the microcontroller (31) through the first transistor (13). The base of the first transistor (13) is connected to the output port of the microcontroller (31), the collector and the positive terminal of the DC power supply (41) are both connected to the microcontroller (31), and the emitter is connected to the negative terminal of the DC power supply (41) and the microcontroller (31) through the electromagnetic terminal of the first normally open relay (12).

6. The switch control device for cable heat shrink sealing equipment according to claim 5, characterized in that, The heater (21) is connected to the AC power supply (42) through the second power supply circuit (24). The switching terminal of the second normally open relay (22) is connected to the second power supply circuit (24). The electromagnetic terminal of the second normally open relay (22) is connected to the microcontroller (31) through the second transistor (23). The base of the second transistor (23) is connected to the output port of the microcontroller (31), the collector and the positive terminal of the DC power supply (41) are both connected to the microcontroller (31), and the emitter is connected to the negative terminal of the DC power supply (41) and the microcontroller (31) through the electromagnetic terminal of the second normally open relay (22).

7. The switch control device for cable heat shrink sealing equipment according to claim 6, characterized in that, A first voltage divider resistor (15) is provided between the base of the first transistor (13) and the microcontroller (31). A second voltage divider resistor (16) is connected between the first voltage divider resistor (15) and the base of the first transistor (13), and the second voltage divider resistor (16) is connected to the emitter of the first transistor (13).

8. The switch control device for cable heat shrink sealing equipment according to claim 7, characterized in that, A third voltage divider resistor (25) is provided between the base of the second transistor (23) and the microcontroller (31). A second voltage divider resistor (26) is connected between the third voltage divider resistor (25) and the base of the second transistor (23), and the second voltage divider resistor (26) is connected to the emitter of the second transistor (23).

9. The switch control device for cable heat shrink sealing equipment according to claim 8, characterized in that, It also includes two jog switches (33) connected to the microcontroller (31), and the two jog switches (33) are respectively connected to the electromagnetic terminal of the first normally open relay (12) and the electromagnetic terminal of the second normally open relay (22), and the jog switches (33) are grounded to the electromagnetic terminal.

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