Electric drive system of smoke exhaust equipment

Abstract

The utility model discloses an electric drive system of smoke exhaust equipment, which belongs to the technical field of smoke exhaust equipment and comprises a control box, a power supply box, a four-in-one motor controller, a three-in-one motor controller, a first permanent magnet synchronous motor and a second permanent magnet synchronous motor. The four-in-one motor controller drives a first permanent magnet synchronous motor; the four-in-one motor controller rectifies the alternating current into a direct-current power supply and outputs the direct-current power supply to the three-in-one motor controller for power supply; the three-in-one motor controller is used for converting a direct-current power supply into an alternating-current power supply and respectively driving the first permanent magnet synchronous motor and the two second permanent magnet synchronous motors; the output ends of the first permanent magnet synchronous motor and the second permanent magnet synchronous motor are connected with smoke exhaust fans; according to the utility model, the motor can be accurately driven to drive the smoke exhaust fan to work normally, stepless speed regulation of the motor is realized, the electric driving efficiency is improved, and the working energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of exhaust equipment electric drive system, belong to exhaust equipment technical field. BACKGROUND

[0002] The current exhaust equipment electric drive system is that 380V voltage provided by power supply box is connected to motor soft start device, motor soft start device drives motor to work, after the power of electric control box, motor uniform acceleration starts to start, to the required speed, start continuous operation, during motor speed is not adjustable, want to increase the air volume of smoke, only by increasing the way of motor and fan, motor operating parameters and temperature information cannot be visualized, after failure, only fault indicator light up, cannot accurately locate the cause of failure.

[0003] Existing exhaust equipment electric drive system is relatively simple, only motor soft start and stop can be realized, the speed of motor cannot be realized, part of the scene with larger smoke volume needs to increase fan, it is time-consuming and laborious to operate, rescue efficiency is lower.

[0004] 2. Motor and soft start device do not have separate signal transmission to controller, the lack of effective real-time monitoring of operating parameters, due to high temperature of fire scene, the temperature value of motor also lacks effective monitoring, after the failure of electric drive system, only rely on professional personnel on-site to gradually investigate the cause, cannot achieve fast and accurate positioning of failure.

[0005] 3, motor cannot be speed-regulated, directly close to full-power operation, resulting in increased operating energy consumption, and higher vehicle cost. INVENTION CONTENTS

[0006] The utility model aims at overcoming the deficiencies in the prior art, providing an exhaust equipment electric drive system, which can accurately drive motor to drive the normal operation of smoke exhaust fan, realize stepless speed regulation of motor, improve the efficiency of electric drive and reduce the energy consumption of work.

[0007] To achieve the above object, the utility model is adopted with the following technical scheme:

[0008] In the first aspect, the utility model provides an exhaust equipment electric drive system, comprising: control box, power supply box, four-in-one motor controller, three-in-one motor controller, first permanent magnet synchronous motor, second permanent magnet synchronous motor, wherein:

[0009] The outgoing line end of the control box is connected to the four-in-one motor controller, and the four-in-one motor controller drives a first permanent magnet synchronous motor;

[0010] The power supply box is used to provide alternating current power to the four-in-one motor controller and the three-in-one motor controller;

[0011] The four-in-one motor controller built-in rectifier is used for rectifying alternating current into direct current power supply, and outputting the direct current power supply to the three-in-one motor controller for power supply;

[0012] The three-in-one motor controller converts the direct current power supply into alternating current power supply, and drives a first permanent magnet synchronous motor and two second permanent magnet synchronous motors respectively;

[0013] The first permanent magnet synchronous motor and the second permanent magnet synchronous motor are connected with the exhaust fan.

[0014] Further, the control box comprises a controller, a display and a switch, the controller and the switch are used for sending the start-stop signal and the rotating speed adjustment signal of the first permanent magnet synchronous motor or the second permanent magnet synchronous motor, and the display is used for displaying the parameters of the operation of the first permanent magnet synchronous motor or the second permanent magnet synchronous motor.

[0015] Further, the switch on the control box is connected to the DI port of the controller, and the controller DI port sends the start-stop command to the three-in-one or four-in-one motor controller through the CAN bus after receiving the switch signal.

[0016] Further, the first permanent magnet synchronous motor is a 55KW permanent magnet synchronous motor.

[0017] Further, the second permanent magnet synchronous motor is a 7.5KW permanent magnet synchronous motor.

[0018] Further, the four-in-one motor controller is further connected to a 3KW fire-fighting motor pump.

[0019] Further, the control box, the four-in-one motor controller, the three-in-one motor controller, the first permanent magnet synchronous motor and the second permanent magnet synchronous motor adopt the CAN bus for communication.

[0020] Further, the power supply box is provided with a circuit breaker with leakage protection.

[0021] Further, the four-in-one motor controller, the three-in-one motor controller and the first permanent magnet synchronous motor or the second permanent magnet synchronous motor transmit the current through the 300m cable.

[0022] Further, the cable adopts four-core high-voltage cable and two-core signal line with shielding layer.

[0023] Compared with the prior art, the utility model has the beneficial effects that:

[0024] 1. The utility model provides a kind of exhaust equipment electric drive system, by control box, power supply box, four-in-one motor controller, three-in-one motor controller, first permanent magnet synchronous motor, second permanent magnet synchronous motor collaborative work, can accurately drive motor to drive the normal work of exhaust fan, realize the stepless speed regulation of motor, improve the efficiency of electric drive simultaneously, reduce the energy consumption of work.

[0025] 2, the electric drive system of the utility model is relatively independent, which ensures the stability of the electric drive system, and does not interfere with or affect the entire power supply system product, signal communication is carried out between the electric control box, motor controller and motor, making the entire electric drive system more intelligent and more controllable. All switches and displays are integrated on the control box, forming a central integrated operation display area. Human-computer interaction is more friendly and easy to operate. The impact on the system caused by inexperience or misoperation is avoided. All operating parameters and faults are displayed on the display, making it easy for operators to quickly locate the problem and quickly solve the problem, improving rescue efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a connection schematic diagram of the electric drive system of the exhaust equipment provided by the utility model embodiment;

[0027] Figure 2 is the electric schematic diagram of the electric drive system of the exhaust equipment provided by the utility model embodiment;

[0028] In the figure: 1, control box; 2, power supply box; 3, four-in-one motor controller; 4, three-in-one motor controller; 5, 55KW permanent magnet synchronous motor; 6, 7.5KW permanent magnet synchronous motor. DETAILED DESCRIPTION

[0029] The utility model will be further described below in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0030] Embodiment 1, this embodiment introduces a kind of exhaust equipment electric drive system, including: control box 1, power supply box 2, four-in-one motor controller 3, three-in-one motor controller 4, first permanent magnet synchronous motor, second permanent magnet synchronous motor, wherein:

[0031] The outgoing line end of the control box 1 is connected to the four-in-one motor controller 3, and the four-in-one motor controller 3 drives a first permanent magnet synchronous motor;

[0032] The power supply box 2 is used to provide AC power to the four-in-one motor controller 3 and the three-in-one motor controller 4;

[0033] The four-in-one motor controller 3 is internally provided with a rectifier for rectifying alternating current into direct current power, and the direct current power is output to the three-in-one motor controller 4 for power supply;

[0034] The three-in-one motor controller 4 converts the direct current power into alternating current power, and drives one first permanent magnet synchronous motor and two second permanent magnet synchronous motors respectively;

[0035] The first permanent magnet synchronous motor and the second permanent magnet synchronous motor are both connected with a smoke exhaust fan.

[0036] The above-mentioned contents designed in the embodiment will be described below in combination with a preferred embodiment.

[0037] As shown in Figure 1 The electric drive system of the smoke exhaust equipment is driven by the chassis to work the alternator, and the output 380V electricity is connected to the power supply box 2, which is internally provided with a circuit breaker with leakage protection, controls the on-off between the power supply and the four-in-one controller, and automatically disconnects the circuit if leakage occurs in the circuit to protect the components and cables.

[0038] The circuit breaker of the power supply box 2 is connected to the four-in-one motor controller 3, which drives a 55KW permanent magnet synchronous motor 5 and a 3KW fire-fighting motor pump at the same time, and the four-in-one motor controller 3 is internally provided with a rectifier for rectifying 380V alternating current into direct current power, and then the direct current power is supplied to the three-in-one motor controller 4, which converts the direct current power into 380V alternating current power, and then drives a 55KW permanent magnet synchronous motor 5 and two 7.5KW permanent magnet synchronous motors 6, which are fixedly installed with the smoke exhaust fan to drive the fan to realize the smoke exhaust function, and the power supply box 2 provides power supply for the entire drive system, and the entire electric drive system independently runs inside except the power supply, which has high stability and is not affected by external interference.

[0039] The motor controller transmits current between a 55KW motor and two 7.5KW motors through a 300-meter cable, and the cable line adopts four-core high-voltage cable plus two-core shielded signal line, which effectively avoids the interference of high voltage on the signal line and maintains the stability of the electric signal system.

[0040] The control box 1 includes a controller, a display and a switch, the controller and the switch are used to send motor start-stop signals and speed adjustment signals, the display is used to display voltage, current, speed, temperature and other parameters of the motor running, and also prompts faults and reasons, so as to facilitate the operator to monitor the motor operation state in real time, quickly process the encountered fault problems, etc. The controller, the motor controller and the motor communicate with each other through CAN bus, and all adopt shielded cables to prevent signal interference.

[0041] The electrical schematic diagram involved is as shown in Figure 2

[0042] The controller and the display are connected with the electric drive system through the CAN bus, all the button switches on the control box 1 are connected to the DI port of the controller, the controller DI port can send operation commands to the three-in-one motor controller 4 or the four-in-one motor controller 3 through the CAN bus after receiving the signals, and the motor controller drives the motor according to the signals transmitted by the controller CAN bus.

[0043] The parameters of the motor controller and the motor operation are transmitted to the controller through the CAN bus, and are displayed by the display, including the motor operation state, the current temperature of the motor and the controller, etc., at the same time, the faults in the operation process of the motor and the motor controller are also displayed by the display, the display mode is icon flashing plus sound alarm, and the motor is controlled to slow down and stop according to the causes of the faults.

[0044] The utility model provides a kind of smoke exhaust equipment electric drive system, electric drive system is relatively independent, the stability of electric drive system is guaranteed, simultaneously, whole power supply system product interference and influence are not caused, signal communication is carried out between electric control box, motor controller and motor, so that whole electric drive system is more intelligent, controllability is higher, all control button switch and display are integrated on control box 1, form a central integrated operation display area, man-machine interaction is more friendly, operation method is simple and clear, avoid the influence caused to system due to unskilled operation or misoperation. All operating parameters and faults are displayed on the display, so that operator can quickly locate problem reason, quickly solve problem, improve rescue efficiency.

[0045] The above is only preferred embodiment of the utility model, it should be pointed out, for ordinary skilled person in the prior art, without departing from the technical principle of the utility model, can make a number of improvements and deformation, these improvements and deformation also should be regarded as the protection range of the utility model.​

Claims

1. An electric drive system for smoke extraction equipment, characterized in that, It comprises: a control box, a power supply box, a four-in-one motor controller, a three-in-one motor controller, a first permanent magnet synchronous motor, and a second permanent magnet synchronous motor, wherein: the outgoing end of the control box is connected to the four-in-one motor controller, and the four-in-one motor controller drives one first permanent magnet synchronous motor; the power supply box is used to provide AC power to the four-in-one motor controller and the three-in-one motor controller; the four-in-one motor controller is built-in rectifier, which is used to rectify AC power into DC power, and output the DC power to the three-in-one motor controller for power supply; the three-in-one motor controller converts the DC power into AC power, and drives one first permanent magnet synchronous motor and two second permanent magnet synchronous motors respectively; wherein, the output end of the first permanent magnet synchronous motor and the second permanent magnet synchronous motor is connected with a smoke exhaust fan.

2. The electric drive system for smoke extraction equipment according to claim 1, characterized in that: The control box comprises a controller, a display, and a switch, the controller and the switch are used to send start-stop signals and speed adjustment signals of the first permanent magnet synchronous motor or the second permanent magnet synchronous motor, and the display is used to display the parameters of the first permanent magnet synchronous motor or the second permanent magnet synchronous motor in operation.

3. The electric drive system for smoke extraction equipment according to claim 2, characterized in that: The switch on the control box is connected to the DI port of the controller, and the controller DI port receives the switch signal and sends start-stop commands to the three-in-one or four-in-one motor controller through the CAN bus.

4. The electric drive system for smoke extraction equipment according to claim 1, characterized in that: The first permanent magnet synchronous motor is a 55KW permanent magnet synchronous motor.

5. The electric drive system for smoke extraction equipment according to claim 1, characterized in that: The second permanent magnet synchronous motor is a 7.5KW permanent magnet synchronous motor.

6. The electric drive system for smoke extraction equipment according to claim 1, characterized in that: The four-in-one motor controller is also connected to a 3KW fire-fighting motor pump.

7. The electric drive system for smoke extraction equipment according to claim 1, characterized in that: The control box, the four-in-one motor controller, the three-in-one motor controller, the first permanent magnet synchronous motor, and the second permanent magnet synchronous motor adopt CAN bus for communication.

8. The electric drive system for smoke extraction equipment according to claim 1, characterized in that: The power supply box is provided with a circuit breaker with leakage protection.

9. The electric drive system for smoke extraction equipment according to claim 1, characterized in that: The four-in-one motor controller, the three-in-one motor controller, and the first permanent magnet synchronous motor or the second permanent magnet synchronous motor transmit current through a 300-meter cable.

10. The electric drive system for smoke extraction equipment according to claim 9, characterized in that: The cable uses four-core high-voltage cable and two-core signal line with shielding layer.

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