CN208190041U - A kind of electronic engineering machinery power distribution cabinet - Google Patents
A kind of electronic engineering machinery power distribution cabinet Download PDFInfo
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- CN208190041U CN208190041U CN201820746406.8U CN201820746406U CN208190041U CN 208190041 U CN208190041 U CN 208190041U CN 201820746406 U CN201820746406 U CN 201820746406U CN 208190041 U CN208190041 U CN 208190041U
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Abstract
The utility model provides a kind of electronic engineering machinery power distribution cabinet, belongs to power distribution cabinet field, the connection and control for electronic engineering machinery and external power supply.A kind of electronic engineering machinery power distribution cabinet includes cabinet body, and electric power isolation and short-circuit protection, earth leakage protective device, motor starting device, motor speed control device, electric motor protective device, electric control system, electric parameter acquisition display component and operation alarm lamp are equipped in the cabinet body.There are two electric loops for power distribution cabinet setting, directly can realize that electronic engineering machinery is run under rated supply frequency by outside electric power network power supply, also can access external variable-frequency power sources and realize electronic engineering machinery frequency control operation.Earth leakage protective device, electric motor protective device, short-circuit protection and warning device are installed on the power distribution cabinet, can be cut off the power in time when a failure occurs, and issue alarm signal.
Description
Technical field
The utility model relates to power distribution cabinet fields, particularly, are related to a kind of electronic engineering machinery power distribution cabinet.
Background technique
Most engineering machinery, farm machinery are driven with fuel engines at this stage, and advantage is mobility
By force, cross-country ability is high.But have engine noise high simultaneously, exhaust pollution is serious, use cost and the high defect of maintenance cost.With
Country advocate using clean energy resource, and the development of mechanical the relevant technologies, engineering mechanical device using electricity as power source by
Gradually become a kind of development trend.The electronic engineering machinery such as electric excavator is had already appeared in the world today, thereon power distribution cabinet
An only performance loop limits utilization of the electronic engineering machinery under different operating conditions.
Utility model content
The utility model will solve problem of the prior art, and a kind of electronic engineering machinery power distribution cabinet visualized can be very
Overcome the above problem well, greatly promotes the motorized of engineering machinery, and this equipment is easily achieved centralization, intelligent pool
Management control can more efficiently, reliably and securely fulfil assignment.
To achieve the above object, the utility model provides a kind of electronic engineering machinery power distribution cabinet, including cabinet body, cabinet body
On be provided with cabinet body door, which is characterized in that the interior of the cabinet be provided with electric power isolation and short-circuit protection, earth leakage protective dress
It sets, motor starting device, motor speed control device, electric motor protective device, electric control system and electric parameter acquisition display component,
The electric power isolation and short-circuit protection, earth leakage protective device, motor starting device, motor speed control device, electric motor protecting dress
It sets and is connect with electric control system with electric parameter acquisition display component；The electric power isolation and short-circuit protection and electric leakage
Protective device is connect with the input power of power distribution cabinet；The motor starting device, motor speed control device and electric motor protective device
It is connect with external motor；
The electric power isolation and short-circuit protection, earth leakage protective device, motor starting device, electric motor protective device are constituted
Outside electric power network electric loop, the outside electric power network electric loop is connect with outside electric power network power supply realizes the electronic of electronic engineering machinery
The smooth starting of machine, and run under stabilized power source frequency, while electric control system is to the operation in operator cabin of engineering machinery
Instruction is handled, and provides the power supply of constant frequency for the motor of engineering machinery；
The electric power isolation and short-circuit protection, earth leakage protective device, motor speed control device and electric motor protective device structure
At external frequency conversion electric loop, the external frequency conversion electric loop is connect with external variable-frequency power sources, by electric control system to work
The indoor speed regulating command of journey mechanical driver is handled, and processing result is conveyed to external variable-frequency power sources, is become with adjusting
The out-put supply frequency of frequency device, adjusts the running speed of motor.
Electric power isolation and short-circuit protection are made of breaker and fuse, the breaker and fuse with
The input power of power distribution cabinet connects, for when power distribution cabinet internal circuit occur short circuit, overvoltage or it is under-voltage when, cut off power distribution cabinet
Input power.
The earth leakage protective device is made of zero sequence current mutual inductor and signal generator, for working as power distribution cabinet internal circuit
Appearance is grounded or when leaky, cuts off the input power of power distribution cabinet.
The motor starting device is made of soft activator, is realized during starting motor without impact and smooth starting
Motor.
The motor speed control device is made of PLC and power pack, and PLC is connect with power pack, when power distribution cabinet is received
When to external speed-regulating signal, signal processing is carried out by speed regulation device, and be sent to external frequency conversion equipment, adjust frequency conversion equipment
Out-put supply frequency realizes the speed regulation of motor.
The electric motor protective device is made of electrothermal relay, and electrothermal relay is connect with external motor, when motor overload, is cut
The out-put supply of disconnected power distribution cabinet.
The electric control system is made of PLC, air switch, A.C. contactor, power module and intermediate relay, empty
Air cock, A.C. contactor and intermediate relay are connect with PLC, and power module connect power supply with PLC, at electric signal
Reason and sending control signal.
The electric parameter acquisition display component is made of touch screen, for showing the electrical ginseng of voltage, electric current and power
Several and fault message, is equipped with operation and alarm lamp at the top of power distribution cabinet, operation and alarm lamp and electrical control system
System connection.
The cabinet body is also provided with air outlet, is provided with exhaust fan on air outlet.
The utility model has the following beneficial effects:
The utility model is provided with outside electric power network electric loop and external frequency conversion electric loop, so that power distribution cabinet has
Double loop can open a circuit therein according to the different needs selections of external operating condition, so that better meeting
The demand of construction, while the motorized of engineering machinery is greatly promoted, and this equipment is easily achieved centralization, intelligent pool pipe
Reason control can more efficiently, reliably and securely fulfil assignment.
Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model
Point.Below with reference to figure, the utility model is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is the power distribution cabinet structural schematic diagram of the utility model；
Fig. 2 is the power distribution cabinet outside structure diagram of the utility model.
In figure: 1- electrothermal relay, 2- breaker, 3- soft activator, 4-PLC, 5- zero sequence current mutual inductor, 6- air are opened
It closes, 7- A.C. contactor, 8- power module, 9- indicator light, 10- power pack, 11- signal generator, relay among 12-
Device, 13- fuse, 14- touch screen.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be according to power
Benefit requires to limit and the multitude of different ways of covering is implemented.
A kind of electronic engineering machinery power distribution cabinet connect with external power supply for electronic engineering machinery and carries out to motor
The equipment of control.As shown in Figs. 1-2, including cabinet body, it is provided with cabinet body door on cabinet body, cabinet body door is flexibly connected with cabinet body.Cabinet body
It is internally provided with electric power isolation and short-circuit protection, earth leakage protective device, motor starting device, motor speed control device, motor
Protective device, electric control system and electric parameter acquire display component.Electric power isolation and short-circuit protection, earth leakage protective dress
It sets, motor starting device, electric motor protective device constitute outside electric power network electric loop, the outside electric power network electric loop and external electricity
The smooth starting of the motor of electronic engineering machinery is realized in network source connection, and is run under stabilized power source frequency, while electrical
Control system handles the operational order in operator cabin of engineering machinery, provides constant frequency for the motor of engineering machinery
Power supply.Electric power isolation and short-circuit protection, earth leakage protective device, motor speed control device and electric motor protective device constitute external change
Frequency electric loop, the external frequency conversion electric loop is connect with external variable-frequency power sources, by electric control system to engineering machinery department
The indoor speed regulating command of machine is handled, and processing result is conveyed to external variable-frequency power sources, to adjust the defeated of frequency converter
Supply frequency out adjusts the running speed of motor.Electronic engineering machinery opens one therein according to different construction demands
Circuit, so as to meet the needs of machine work well.There are two electric loops for setting, can direct outside electric power network power supply reality
Existing electronic engineering machinery is run under rated supply frequency, also be can access external variable-frequency power sources and is realized electronic engineering machinery frequency conversion tune
Speed operation.
General electronic engineering machinery is often placed on frequency converter in electrical equipment, and provides standard from external electrical network
Electric power, but due to the working environment very severe of engineering machinery, general frequency converter is difficult to meet the requirement of this working environment, institute
To be very difficult in high performance electronic engineering machinery reality.This patent is provided with docking frequency converter on power distribution cabinet
Electric interfaces and communication interface, when electronic engineering machinery has speed regulation demand, can directly external frequency conversion equipment, realize the speed of motor
Degree is adjusted.
Usual electronic engineering machinery only has an electric loop, is worked using frequency control or direct outside electric power network,
And electronic engineering machinery limited by the power supply offer of work-yard it is larger, therefore, this patent setting there are two electric loop, according to
The power supply at scene, can voluntarily switch over, application range is wider.
Electric power isolation and short-circuit protection, earth leakage protective device, motor starting device, motor speed control device, motor are protected
Protection unit and electric parameter acquisition display component are connect with electric control system.Electric power isolation and short-circuit protection are by open circuit
Device and fuse are constituted.Breaker and fuse are connect with the input power of power distribution cabinet, for going out when power distribution cabinet internal circuit
Existing short circuit, overvoltage or it is under-voltage when, cut off the input power of power distribution cabinet.Electric power isolation and short-circuit protection and earth leakage protective dress
It sets and is connect with the input power of power distribution cabinet.Motor starting device, motor speed control device and electric motor protective device are and external electrical
Machine connection.
Electric power isolation and short-circuit protection are made of breaker 2 and fuse 13, and the breaker 2 and fuse 13 are equal
Connect with the input power of power distribution cabinet, for when power distribution cabinet internal circuit occur short circuit, overvoltage or it is under-voltage when, cut off power distribution cabinet
Input power.Earth leakage protective device is made of zero sequence current mutual inductor 5 and signal generator 11, for the electricity inside power distribution cabinet
Road occurs being grounded or when leaky, cuts off the input power of power distribution cabinet.Motor starting device is made of soft activator 3, is realized
Without impact and smooth starting motor during starting motor.Motor speed control device is made of PLC4 and power pack 10,
PLC4 is connect with power pack 10, when power distribution cabinet receives external speed-regulating signal, carries out signal processing by speed regulation device,
And it is sent to external frequency conversion equipment, frequency conversion equipment out-put supply frequency is adjusted, realizes the speed regulation of motor.Wherein motor speed control device
Sharing one with electric control system, there are two PLC4 by PLC4 or setting, are configured as needed, but are usually to make
With a PLC4, save the cost.Electric motor protective device is made of electrothermal relay 1, and electrothermal relay 1 and external motor connect
It connects, when motor overload, cuts off the out-put supply of power distribution cabinet.Electric control system is by PLC4, air switch 6, A.C. contactor
7, power module 8 and intermediate relay 12 are constituted, and air switch 6, A.C. contactor 7 and intermediate relay 12 connect with PLC4
It connects, power module 8 connect power supply with PLC4, and control signal is handled and issued for electric signal.Electric parameter acquires display group
Part is made of touch screen 14, for showing the electric parameter and fault message of voltage, electric current and power, is installed at the top of power distribution cabinet
There are operation and alarm lamp 9, operation and alarm lamp 9 are connect with electric control system.Cabinet body is also provided with air outlet, out
Exhaust fan is provided on air port, the front end of cabinet body door is arranged in touch screen 14.
As shown in Figure 1, the top of cabinet body, power pack 10, intermediate relay 12 and fuse 13 is arranged in indicator light 9
It is successively set on a side of interior of the cabinet from top to bottom.Power module 8, signal generator 11 are arranged in parallel in cabinet body
On the trailing flank in portion, air switch 6, PLC4 and soft activator 3, which are arranged at, is successively set on power module 8 and signal generator
11 low side.A.C. contactor 7, zero sequence current mutual inductor 5, breaker 2 and electrothermal relay 1 are successively set on power supply from top to bottom
The side of module 8.
Electric parameter acquisition component is integrated with multipath electric parameter acquisition unit, so as to be able to satisfy various measurement of electric parameter and
Fault analysis and diagnosis requirement, and then meet touch screen 14 and show high-precision electric parameter such as voltage, electric current etc., and is each
Kind fault message such as motor overload, ground protection etc..Touch screen can not only intuitively show user circle by multiwindow configuration
Face facilitates user to read the information for touching screen display, can be also configured by parameter of the touch screen to power distribution cabinet.
Existing electronic engineering machinery is generally only provided with outside electric power network electric loop with power distribution cabinet, so that electronic
Any working condition of machine not can be carried out frequency shift control, so that output electric energy etc. is relatively high, but it is practical for this
It is novel to be provided with outside electric power network electric loop and external frequency conversion electric loop, it is selection external electricity in the case where general work
Net electric loop, and need the power exported higher in motor mechanical equipment or work in the period of heavy industry journey, it opens
External frequency conversion electric loop, so that frequency conversion is carried out according to different needs of work, so that working efficiency is higher, more preferably
Regulation.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of electronic engineering machinery power distribution cabinet, including cabinet body, cabinet body door is provided on cabinet body, which is characterized in that the cabinet
Body is internally provided with electric power isolation and short-circuit protection, earth leakage protective device, motor starting device, motor speed control device, electricity
Machine protective device, electric control system and electric parameter acquire display component, the electric power isolation and short-circuit protection, electric leakage
Protective device, motor starting device, motor speed control device, electric motor protective device and electric parameter acquisition display component are and electrically
Control system connection；The electric power isolation and short-circuit protection and earth leakage protective device connect with the input power of power distribution cabinet
It connects；The motor starting device, motor speed control device and electric motor protective device are connect with external motor；
The electric power isolation and short-circuit protection, earth leakage protective device, motor starting device, electric motor protective device constitute external
Power grid electric loop, the outside electric power network electric loop connect the motor for realizing electronic engineering machinery with outside electric power network power supply
Smooth starting, and run under stabilized power source frequency, while electric control system is to the operational order in operator cabin of engineering machinery
It is handled, provides the power supply of constant frequency for the motor of engineering machinery；
The electric power isolation and short-circuit protection, earth leakage protective device, motor speed control device and electric motor protective device constitute outer
Frequency conversion electric loop is connect, the external frequency conversion electric loop is connect with external variable-frequency power sources, by electric control system to engineering machine
The indoor speed regulating command of tool driver is handled, and processing result is conveyed to external variable-frequency power sources, to adjust frequency converter
Out-put supply frequency, adjust the running speed of motor.
2. a kind of electronic engineering machinery power distribution cabinet according to claim 1, which is characterized in that electric power isolation and short
Line protection device is made of breaker (2) and fuse (13), and the breaker (2) and fuse (13) are defeated with power distribution cabinet
Enter power supply connection, for when power distribution cabinet internal circuit occur short circuit, overvoltage or it is under-voltage when, cut off the input power of power distribution cabinet.
3. a kind of electronic engineering machinery power distribution cabinet according to claim 1, which is characterized in that the earth leakage protective device
It is made of zero sequence current mutual inductor (5) and signal generator (11), for occurring being grounded or leaking electricity now when power distribution cabinet internal circuit
As when, cut off the input power of power distribution cabinet.
4. a kind of electronic engineering machinery power distribution cabinet according to claim 1, which is characterized in that the motor starting device
It is made of, is realized during starting motor without impact and smooth starting motor soft activator (3).
5. a kind of electronic engineering machinery power distribution cabinet according to claim 1, which is characterized in that the motor speed control device
It is made of PLC (4) and power pack (10), PLC (4) is connect with power pack (10), when power distribution cabinet receives external tune
When fast signal, signal processing is carried out by speed regulation device, and be sent to external frequency conversion equipment, adjusts frequency conversion equipment out-put supply frequency
Rate realizes the speed regulation of motor.
6. a kind of electronic engineering machinery power distribution cabinet according to claim 1, which is characterized in that the electric motor protective device
It is made of electrothermal relay (1), electrothermal relay (1) is connect with external motor, when motor overload, cuts off the output electricity of power distribution cabinet
Source.
7. a kind of electronic engineering machinery power distribution cabinet according to claim 1, which is characterized in that the electric control system
It is made of PLC (4), air switch (6), A.C. contactor (7), power module (8) and intermediate relay (12), air switch
(6), A.C. contactor (7) and intermediate relay (12) are connect with PLC (4), and power module (8) connect power supply with PLC (4),
For electric signal processing and issue control signal.
8. a kind of electronic engineering machinery power distribution cabinet according to claim 2, which is characterized in that the electric parameter acquisition
Display component is made of touch screen (14), for showing the electric parameter and fault message of voltage, electric current and power, in power distribution cabinet
Top is equipped with operation and alarm lamp (9), and operation and alarm lamp (9) are connect with electric control system.
9. a kind of electronic engineering machinery power distribution cabinet according to claim 1, which is characterized in that the cabinet body is also provided with
Air outlet is provided with exhaust fan on air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820746406.8U CN208190041U (en) | 2018-05-18 | 2018-05-18 | A kind of electronic engineering machinery power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820746406.8U CN208190041U (en) | 2018-05-18 | 2018-05-18 | A kind of electronic engineering machinery power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208190041U true CN208190041U (en) | 2018-12-04 |
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ID=64430873
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820746406.8U Active CN208190041U (en) | 2018-05-18 | 2018-05-18 | A kind of electronic engineering machinery power distribution cabinet |
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| Country | Link |
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| CN (1) | CN208190041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365538A (en) * | 2018-05-18 | 2018-08-03 | 株洲联诚集团控股股份有限公司 | A kind of electronic engineering machinery power distribution cabinet |
-
2018
- 2018-05-18 CN CN201820746406.8U patent/CN208190041U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365538A (en) * | 2018-05-18 | 2018-08-03 | 株洲联诚集团控股股份有限公司 | A kind of electronic engineering machinery power distribution cabinet |
| CN108365538B (en) * | 2018-05-18 | 2024-03-12 | 株洲联诚集团控股股份有限公司 | Power distribution cabinet for electric engineering machinery |
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