Intelligent electric control box

Abstract

The utility model relates to the technical field of power control equipment, and particularly discloses an intelligent electric control box which comprises a box body and a box door, the box door is hinged to the box body, a box opening lock is arranged on the box door, and the box door is matched with the box body through the box opening lock. A power input air switch, a direct-current power source, a PLC, a current sensor, an alternating-current contactor, a relay and a power output terminal are arranged in the box body, the power input air switch, the PLC, the current sensor and the relay are all electrically connected with the direct-current power source, and the power input air switch, the relay and the power output terminal are all electrically connected with the alternating-current contactor. The current inductor and the relay are both electrically connected with the PLC, a delay unit is programmed in the PLC, and the delay unit starts to operate after the current inductor stops transmitting signals to the PLC and cuts off power supply of the relay after timing is finished. According to the utility model, the power utilization safety can be improved, the use permission control of special and high-risk electric appliances can be improved, and the potential safety hazard of power utilization can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power control equipment, and in particular relates to an intelligent electric control box. Background Art

[0002] With the development of economic conditions and scientific and technological levels, more and more electronic devices with technological content are rapidly entering the lives of ordinary people, facilitating and enriching people's lives and work. According to statistics, many people die from electric shock every year, and the number of casualties caused by electricity-related accidents cannot be underestimated. It can be seen that while electricity provides convenience for people, it also brings great safety hazards. Therefore, more comprehensive and complete management and monitoring of power equipment is still an important issue facing the power sector, especially in modern society where the popularity and depth of power equipment in people's lives and work are unprecedentedly high. Operational failures or safety problems of power equipment will bring inconvenience to more people and even endanger public safety.

[0003] The electric control box is a commonly used device in the power control system. It is used in places where the load is relatively dispersed and there are fewer circuits. The electric control box is an intermediate device connecting the power supply and the load equipment. In addition to distributing electric energy, it also has the functions of controlling, indicating and protecting the electrical equipment. The existing electric control box is mainly powered on and off by the operator manually opening and closing the control switch. When the load equipment is operating, the operator opens the electric control box and turns on the control switch to continuously supply power to the load equipment. When the load equipment is not operating, the operator needs to open the electric control box and turn off the control switch to cut off the power. However, some operators often leave the work site temporarily without cutting off the power in time for the convenience of work, so the electric control box continues to supply power to the load equipment, which poses a safety hazard of electric shock to the relevant personnel and misoperation of the equipment.

[0004] Therefore, we propose an intelligent electric control box to solve the above technical problems. Utility Model Content

[0005] In order to solve the technical problem in the prior art that when the load equipment is not operated, the operator fails to disconnect the circuit in time, resulting in the potential safety hazards of electric shock to relevant personnel and misoperation of the equipment, the utility model proposes an intelligent electric control box.

[0006] The technical solution adopted by the utility model is as follows:

[0007] An intelligent electric control box comprises a box body and a box door, wherein the box door is hinged to the box body, the box door is provided with a box opening lock, and the box door cooperates with the box body through the box opening lock, and the box body is provided with a power input air switch, a DC power supply, a PLC controller, a current sensor, an AC contactor, a relay and a power output terminal, wherein the power input air switch, the PLC controller, the current sensor and the relay are all electrically connected to the DC power supply, the power input air switch, the relay and the power output terminal are all electrically connected to the AC contactor, the current sensor and the relay are all electrically connected to the PLC controller, and a delay unit is programmed in the PLC controller, wherein the delay unit starts to operate after the current sensor stops transmitting a signal to the PLC controller and cuts off the power supply to the relay after the timing ends.

[0008] By adopting the above technical scheme, the utility model is mainly used for load equipment that needs to press the switch continuously to operate or has a delayed shutdown. It can automatically power off such load equipment. When in use, it is necessary to verify the power-on authority, open the cabinet door, and turn on the power input air switch to power on the load equipment and the electrical components in the box. When the load equipment is in use, the current sensor will send a signal to the PLC controller. At this time, the delay unit in the PLC controller will not count, so that the power will not be cut off. When the operation needs to be suspended or the personnel temporarily leave the site, due to the lock of the box door, the operator may find it troublesome or forget to disconnect the circuit in time. At this time, when the load equipment is not operated, the current sensor does not send a signal to the PLC controller, thereby triggering the countdown of the delay unit. The countdown time can be freely set. At the end of the countdown time, the PLC controller cuts off the power supply of the relay, and then triggers the AC contactor to power off the circuit. When it is used again, it is necessary to re-verify the power-on authority, thereby reducing the safety hazards of electric shock to relevant personnel and misoperation of equipment, and can effectively improve the safety of electrical equipment, as well as improve the use authority control of special and high-risk electrical equipment.

[0009] In a further technical solution, a power supply verification switch is provided on the outside of the box door, and the DC power supply, relay, current sensor and PLC controller are all electrically connected to the power supply verification switch, and the power supply verification switch is one or more of a fingerprint switch, a password switch and a face recognition switch.

[0010] By adopting the above technical solution, a power supply verification switch is set on the outside of the box door, and one or more of a fingerprint switch, a password switch and a face recognition switch can be used, so that the operator can verify the power-on permission by fingerprint, password or face information without opening the electric control box. After the verification is passed, the relay is triggered, and the relay triggers the AC contactor, so that the circuit is energized to provide power to the load equipment, which is convenient to use.

[0011] In a further technical solution, a working indicator light is provided on the outer side of the box door, and the AC contactor and the relay are both electrically connected to the working indicator light.

[0012] By adopting the above technical solution, relevant personnel can be reminded to pay attention to electricity safety through the setting of the working indicator light.

[0013] In a further technical solution, the working indicator light includes a power-on indicator light and a power indicator light, the power-on indicator light is electrically connected to the power output terminal, and the AC contactor and the relay are both electrically connected to the power indicator light.

[0014] By adopting the above technical solution, when the circuit is powered on, the power indicator light will light up as the power output terminal circuit is powered on. When the circuit is powered off, the PLC controller cuts off the power supply of the relay and the power indicator light will light up, thereby effectively understanding the power on and off information of the load equipment, which is convenient for use.

[0015] In a further technical solution, a high temperature alarm component is also included, which includes a temperature sensor and an alarm. The temperature sensor and the alarm are both electrically connected to the PLC controller and the DC power supply. The temperature sensor is installed on the inner side of the box door, and the alarm is installed on the outer side of the box door.

[0016] By adopting the above technical solution, a temperature sensor and an alarm are set up, and the temperature of the electrical components in the box is monitored by the temperature sensor. When the temperature in the box is too high, the PLC controller sends a signal to the alarm to make the alarm send an alarm signal, which is helpful to remind relevant personnel to improve safety awareness and facilitate maintenance.

[0017] In a further technical solution, the DC power supply includes a 24V DC power supply and a 12V DC power supply, the 24V DC power supply is used to power the PLC controller, relay, AC contactor and current sensor, and the 12V DC power supply is used to power the power supply verification switch.

[0018] With the above technical solution, 24V DC power supply and 12V DC power supply can meet the power requirements of different load devices or modules, ensuring that they can work normally. At the same time, through reasonable power supply configuration, the safety and stability of the system can also be improved to meet various practical application requirements.

[0019] In a further technical solution, an emergency stop button is also included, and the PLC controller and the relay are both electrically connected to the emergency stop button.

[0020] By adopting the above technical solution, the emergency stop button can be used to quickly cut off the circuit when an abnormality occurs in the circuit. This can not only prevent accidents caused by faults such as current overload and short circuit, but also protect the circuit and equipment from damage, which is very important for the safe operation of the circuit and the maintenance of the equipment.

[0021] In a further technical solution, a wire management bracket for optimizing internal wiring is provided in the box body, the interior of the wire management bracket is through-hole-pierced and a plurality of through holes are opened on the side wall.

[0022] By adopting the above technical solution, the internal wiring can be effectively optimized through the internal through-holes on the side of the cable management bracket, which not only has a neat and beautiful appearance, but also reduces the frequency and difficulty of maintenance.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0024] 1. The utility model can delay disconnecting the circuit when the load equipment is not operated, and the power-on authority needs to be verified again when it is used again, which can reduce the safety hazards of electric shock to relevant personnel and misoperation of equipment caused by operators failing to disconnect the circuit in time, thereby effectively improving the safety of electrical equipment and improving the control of use authority of special and high-risk electrical equipment.

[0025] 2. The utility model sets a power supply verification switch on the outside of the box door that adopts one or more verification methods such as fingerprint switch, password switch and face recognition switch, so that the operator can verify the power-on permission by fingerprint, password or face information without opening the electric control box, thereby turning on the power for easy use.

[0026] 3. The utility model can effectively provide circuit on / off information and high temperature alarm information to operators by providing power-on indicator light, power indicator light and high temperature alarm component, which is helpful to remind relevant personnel to improve safety awareness and facilitate use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0028] Figure 1 It is a schematic diagram of the structure of the utility model;

[0029] Figure 2 It is a schematic diagram of the internal structure of the box of the utility model.

[0030] Figure markings: 1-box body, 2-box door, 3-box lock, 4-power input air switch, 5-DC power supply, 501-24V DC power supply, 502-12V DC power supply, 6-PLC controller, 7-current sensor, 8-AC contactor, 9-relay, 10-power output terminal, 11-power supply verification switch, 12-power on indicator light, 13-power indicator light, 14-alarm, 15-emergency stop button, 16-cable management bracket. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1:

[0033] See also Figure 1 and Figure 2 The present embodiment provides an intelligent electric control box, including a box body 1 and a box door 2, wherein the box door 2 is hinged to the box body 1, and an opening lock 3 is provided on the box door 2, and the box door 2 cooperates with the box body 1 through the opening lock 3, and a power input air switch 4, a DC power supply 5, a PLC controller 6, a current sensor 7, an AC contactor 8, a relay 9 and a power output terminal 10 are provided in the box body 1, and the power input air switch 4, the PLC controller 6, the current sensor 7 and the relay 9 are all electrically connected to the DC power supply 5, and the power input air switch 4, the relay 9 and the power output terminal 10 are all electrically connected to the AC contactor 8, and the current sensor 7 and the relay 9 are all electrically connected to the PLC controller 6, and a delay unit is programmed in the PLC controller 6, and the delay unit starts to run after the current sensor 7 stops transmitting signals to the PLC controller 6 and cuts off the power supply of the relay 9 after the timing ends.

[0034] In this embodiment, see Figure 1 A power supply verification switch 11 is provided on the outer side of the box door 2, and the DC power supply 5, relay 9, current sensor 7 and PLC controller 6 are all electrically connected to the power supply verification switch 11. The power supply verification switch 11 is a verifier that integrates a fingerprint switch and a password switch.

[0035] In this embodiment, see Figure 2 The DC power supply 5 includes a 24V DC power supply 501 and a 12V DC power supply 502. The 24V DC power supply 501 is used to supply power to the PLC controller 6, the relay 9, the AC contactor 8 and the current sensor 7, and the 12V DC power supply 502 is used to supply power to the power supply verification switch 11. By setting the 24V DC power supply 501 and the 12V DC power supply 502, the power requirements of different load devices or modules can be met to ensure that they can work normally. At the same time, the safety and stability of the system can be improved to meet various practical application requirements.

[0036] In this embodiment, see Figure 1, and also includes an emergency stop button 15, and the PLC controller 6 and the relay 9 are both electrically connected to the emergency stop button 15. The circuit can be quickly cut off when an abnormality occurs in the circuit, which can not only prevent accidents caused by faults such as current overload and short circuit, but also protect the circuit and equipment from damage, which plays a very important role in the safe operation of the circuit and the maintenance of the equipment.

[0037] In this embodiment, see Figure 2 The box 1 is provided with a cable management bracket 16 for optimizing the internal wiring. The interior of the cable management bracket 16 is through and a plurality of through holes are opened on the side wall. The internal wiring can be effectively optimized, which not only has a neat and beautiful appearance, but also reduces the maintenance frequency and difficulty.

[0038] The specific usage method of this embodiment is as follows:

[0039] The electric control box is mainly used for load equipment that needs to press the switch continuously to operate or has a delayed shutdown, such as cutters, electric saws, electric drills and other load equipment. The electric control box can automatically power off such load equipment. When in use, it is necessary to verify the power-on authority through fingerprint or password. The power supply verification switch 11 triggers the relay 9 after verification, and the relay 9 triggers the AC contactor 8, so that the circuit is energized to provide power to the load equipment. When the load equipment is in use, the current sensor 7 will send a signal to the PLC controller 6. At this time, the delay unit in the PLC controller 6 will not count, so that the power will not be cut off. When the load equipment is not operated, the current sensor 7 does not send a signal to the PLC controller 6, thereby triggering the delay unit countdown. The countdown time is set to 15 seconds. At the end of the countdown time, the PLC controller 6 cuts off the power supply of the relay 9 to cut off the power of the circuit. When it is used again, it is necessary to re-verify the power-on authority, thereby reducing the safety hazards of electric shock to relevant personnel and misoperation of equipment, which can effectively improve the safety of electrical equipment use, and improve the use authority control of special and high-risk electrical equipment.

[0040] Embodiment 2:

[0041] This embodiment is obtained by further optimizing the embodiment 1. Figure 1 In this embodiment, a working indicator light is provided on the outer side of the box door 2, and the working indicator light includes a power-on indicator light 12 and a power indicator light 13. The power-on indicator light 12 is electrically connected to the power output terminal 10, and the AC contactor 8 and the relay 9 are both electrically connected to the power indicator light 13.

[0042] Specifically, the power-on and power-off information of the load device can be understood through the power-on indicator light 12 and the power indicator light 13, which is convenient for use.

[0043] In this embodiment, see Figure 1, and also includes a high temperature alarm component, which includes a temperature sensor and an alarm 14, both of which are electrically connected to the PLC controller 6 and the DC power supply 5, the temperature sensor is installed on the inner side of the box door 2, and the alarm 14 is installed on the outer side of the box door 2.

[0044] Specifically, by setting up a temperature sensor and an alarm 14, the temperature sensor monitors the temperature of the electrical components in the box 1. When the temperature in the box 1 is too high, the PLC controller 6 sends a signal to make the alarm 14 send an alarm signal, which is helpful to remind relevant personnel to improve safety awareness and facilitate maintenance.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An intelligent electric control box, characterized in that: The invention comprises a box body (1) and a box door (2), wherein the box door (2) is hinged to the box body (1), and a box opening lock (3) is provided on the box door (2). The box door (2) cooperates with the box body (1) through the box opening lock (3). The box body (1) is provided with a power input air switch (4), a DC power supply (5), a PLC controller (6), a current sensor (7), an AC contactor (8), a relay (9) and a power output terminal (10). The current sensor (7) and the relay (9) are both electrically connected to the DC power supply (5); the power input air switch (4), the relay (9) and the power output terminal (10) are all electrically connected to the AC contactor (8); the current sensor (7) and the relay (9) are both electrically connected to the PLC controller (6); a delay unit is programmed in the PLC controller (6); the delay unit starts to operate after the current sensor (7) stops transmitting signals to the PLC controller (6) and cuts off the power supply of the relay (9) after the timing ends.

2. The intelligent electric control box according to claim 1, characterized in that: A power supply verification switch (11) is provided on the outer side of the box door (2); the DC power supply (5), the relay (9), the current sensor (7) and the PLC controller (6) are all electrically connected to the power supply verification switch (11); and the power supply verification switch (11) is one or more of a fingerprint switch, a password switch and a face recognition switch.

3. The intelligent electric control box according to claim 1, characterized in that: A working indicator light is provided on the outside of the box door (2), and the AC contactor (8) and the relay (9) are both electrically connected to the working indicator light.

4. The intelligent electric control box according to claim 3, characterized in that: The working indicator light comprises a power-on indicator light (12) and a power indicator light (13); the power-on indicator light (12) is electrically connected to a power output terminal (10); and the AC contactor (8) and the relay (9) are both electrically connected to the power indicator light (13).

5. The intelligent electric control box according to claim 1, characterized in that: The invention also comprises a high temperature alarm component, which comprises a temperature sensor and an alarm (14), wherein the temperature sensor and the alarm (14) are both electrically connected to the PLC controller (6) and the DC power supply (5), the temperature sensor is mounted on the inner side of the box door (2), and the alarm (14) is mounted on the outer side of the box door (2).

6. The intelligent electric control box according to claim 2, characterized in that: The DC power supply (5) comprises a 24V DC power supply (501) and a 12V DC power supply (502), wherein the 24V DC power supply (501) is used to supply power to the PLC controller (6), the relay (9), the AC contactor (8) and the current sensor (7), and the 12V DC power supply (502) is used to supply power to the power supply verification switch (11).

7. The intelligent electric control box according to claim 1, characterized in that: It also includes an emergency stop button (15), and the PLC controller (6) and the relay (9) are both electrically connected to the emergency stop button (15).

8. The intelligent electric control box according to claim 1, characterized in that: The box body (1) is provided with a wire management bracket (16) for optimizing internal wiring. The interior of the wire management bracket (16) is through-hole-pierced and a plurality of through holes are opened on the side wall.

Images