CN208570471U - A kind of electric ground switch control device - Google Patents
A kind of electric ground switch control device Download PDFInfo
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- CN208570471U CN208570471U CN201821336043.7U CN201821336043U CN208570471U CN 208570471 U CN208570471 U CN 208570471U CN 201821336043 U CN201821336043 U CN 201821336043U CN 208570471 U CN208570471 U CN 208570471U
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- electromagnetic clutch
- ground switch
- electric ground
- control device
- electric
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Abstract
The utility model discloses a kind of electric ground switch control devices, including microcontroller, insulated gate bipolar transistor, optocoupler, connecting terminal, diode, resistance, capacitor etc., the electric ground switch control device can control the size of current for the electromagnetic clutch coil being mounted on electric ground switch by the change in duty cycle of the PWM wave of the pulsewidth modulation pin of microcontroller output, electromagnetic clutch high current strength is realized to be attracted, low current low force keeps function, both it ensure that the electromagnetic clutch of electric ground switch can reliably switch, the adverse consequences for preventing electromagnetic clutch coil that fever is caused even to burn out when being powered for a long time again, improve electrically operated reliability.
Description
Technical field
The utility model relates to a kind of electric ground switch control devices, and in particular to used in a kind of high-tension switch cabinet
Electric ground switch control device.
Background technique
Earthing switch in high-tension switch cabinet ensures personal safety when being as maintenance, a kind of mechanical earthing for ground connection
Device.When being overhauled to electrical equipment, all directions or power failure equipments of possible power transmission to power failure equipments may be produced
The route of raw induced voltage will close earthing switch (or hanging up ground line), this be in order to prevent service personnel in power failure equipments
(or power failure operating point) sends a telegram here suddenly when working, it is ensured that the reliable and secure measure of service personnel's personal safety, while high-voltage switch gear
The residual charge on electrical equipment that cabinet is disconnected can also be grounded release and closing earthing switch.
Authorization Notice No. is that the patent of invention of CN103280364B discloses a kind of electric ground switch, which opens
It closes using electromagnetic clutch switching electric operation mode and manual operation mode.Electric ground switch control device is by giving electromagnetism
Clutch coil energization makes electric ground switch be switched to electric operation mode, is made by stopping to the energization of electromagnetic clutch coil
Electric ground switch is switched to manual operation mode.The great advantage of this electric ground switch is electric operating and manual operation
Switching flexibly, occur having a power failure even if during electric operating etc. failures when earthing switch point can also be completed by being manually operated
Closing operation.
Common electric ground switch control device can only control the current switching of electromagnetic clutch coil, but be unable to control
The size of current of electromagnetic clutch coil changes.Due to needing larger current that could reliably inhale when electromagnetic clutch starts and is attracted
It closes, and needs last longer after actuation to complete electric operating, electromagnetic clutch coil during electric operating
Fever is serious.The stage is debugged in electric ground switch, if being carried out continuously electronic division operation it is also possible to burning out electromagnetic clutch
Device coil.
It is big by the electric current for controlling electromagnetic clutch coil therefore, it is necessary to design a kind of electric ground switch control device
Small variation realizes that electromagnetic clutch high current strength is attracted, and low current low force keeps function, when preventing electromagnetic clutch coil long
Between be powered when cause fever even burn out, have realistic meaning.
Utility model content
The purpose of the utility model is to provide a kind of electric ground switch control devices, should guarantee electric ground switch
Electromagnetic clutch can reliably switch electric operation mode and manual operation mode, prevent electromagnetic clutch coil because serious again
It generates heat and burns out, to ensure electrically operated reliability.
To reach above-mentioned purpose of utility model, the technical solution adopted in the utility model is: a kind of electric ground switch control
Device processed, including microcontroller, insulated gate bipolar transistor, the first optocoupler, the second optocoupler, electromagnetic clutch winding wiring
Son, electromagnetic clutch attracting state contact lug terminal, diode, resistance, capacitor, wherein the microcontroller is electronic connects
The control centre of ground switch controlling device, for responding user instruction, carrying out logic judgment and making corresponding action control；Institute
The change in duty cycle for the PWM wave that insulated gate bipolar transistor is exported according to the pulsewidth modulation pin of the microcontroller is stated to control
Make the electric current for the electromagnetic clutch coil being mounted on electric ground switch；First optocoupler is for micro-control described in electrical isolation
Device processed and the electromagnetic clutch attracting state contact lug terminal, second optocoupler is for microcontroller described in electrical isolation
With the insulated gate bipolar transistor, and pass through the level change of optical signal transmission corresponding pin；The electromagnetic clutch line
Circle connecting terminal is used to connect the lead of the electromagnetic clutch coil of electric ground switch；Electromagnetic clutch attracting state contact
Connecting terminal is used to connect the lead of the electromagnetic clutch attracting state contact of electric ground switch.
Preferably, the output voltage of the electromagnetic clutch winding wiring terminal can from 0 to the range of nominal tension in connect
Continuous variation, the electric current for the electromagnetic clutch coil being connected with the electromagnetic clutch winding wiring terminal is also with applied alive
Change and corresponding change.
Preferably, maximum when the electric current of the electromagnetic clutch coil starts when electric operating, make electromagnetic clutch strength
It is attracted；After electric ground switch control device monitors electromagnetic clutch attracting state contact closure, the electromagnetic clutch
The electric current of coil can be reduced to smaller value, and electromagnetic clutch can be reliably attracted at this time and coil will not generate heat；If setting
Time in electric ground switch control device do not monitor electromagnetic clutch attracting state contact closure, electric ground switch
Control device can determine that electromagnetic clutch breaks down and stops current operation, while give user feedback fault message.
Due to having used above-mentioned technical proposal, the utility model has the advantage that compared with prior art
Using the electric ground switch control device of the utility model, by the size of current for controlling electromagnetic clutch coil
Variation realizes electromagnetic clutch high current strength and is attracted, and low current low force keeps function, both ensure that electric ground switch
Electromagnetic clutch can reliably switch, and prevent electromagnetic clutch coil that fever is caused even to burn out not when being powered for a long time
Good consequence improves electrically operated reliability.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments recorded in the utility model, for those of ordinary skill in the art, is not making the creative labor
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the electricity in electric ground switch control device in the utility model embodiment one with electromagnetic clutch coil
Stream adjusts related circuit diagram；
Fig. 2 is that microcontroller and related port connect in electric ground switch control device in the utility model embodiment one
The circuit diagram connect.
Attached drawing mark explanation:
U13, insulated gate bipolar transistor (IGBT)
U7, the first optocoupler
U11, the second optocoupler
J3, electromagnetic clutch winding wiring terminal
J4, electromagnetic clutch attracting state contact lug terminal
X1, electromagnetic clutch
L1, electromagnetic clutch coil
K1, electromagnetic clutch attracting state contact
U1, microcontroller
Coil_Contact, electromagnetic clutch attracting state contact connectivity port label
Coil_PWM, electromagnetic clutch coil pulsewidth modulation connectivity port label
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in the utility model, below in conjunction with this reality
With the attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that
The described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on the utility model
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
The range of the utility model protection all should belong in example.
The utility model is further described with reference to the accompanying drawings and embodiments:
Referring to Fig. 1 to Fig. 2, a kind of electric ground switch control device, including microcontroller U1, insulated gate bipolar crystal
Pipe U13, the first optocoupler U7, the second optocoupler U11, electromagnetic clutch winding wiring terminal J3, electromagnetic clutch attracting state contact
Connecting terminal J4, diode, resistance, capacitor etc..In this embodiment, the microcontroller U1 is electric ground switch control dress
The control centre set, for responding user instruction, carrying out logic judgment and making corresponding action control；The insulated gate bipolar
Transistor npn npn U13 becomes according to the duty ratio of the pulsewidth modulation pin P2.5/A13/CCP0 of the microcontroller U1 PWM wave exported
Change to control the electric current for the electromagnetic clutch coil L1 being mounted on electric ground switch；The first optocoupler U7 is for electricity
Air bound is used from the microcontroller U1 and the electromagnetic clutch attracting state contact lug terminal J4, the second optocoupler U11
The microcontroller U1 described in the electrical isolation and insulated gate bipolar transistor U13, and pass through optical signal transmission corresponding pin
Level change；The electromagnetic clutch winding wiring terminal J3 is used to connect the electromagnetic clutch being mounted on electric ground switch
The lead of coil L1；The electromagnetic clutch attracting state contact lug terminal J4 is used to connect to be mounted on electric ground switch
The lead of electromagnetic clutch attracting state contact K1.
The output voltage of the electromagnetic clutch winding wiring terminal J3 can from 0 to the range of nominal tension in continuously become
Change, with the electric current of the electromagnetic clutch winding wiring terminal J3 electromagnetic clutch coil L1 being connected also with applied alive
Change and corresponding change.
It is maximum when the electric current of the electromagnetic clutch coil L1 starts when electric operating, inhale electromagnetic clutch X1 strength
It closes；After electric ground switch control device monitors electromagnetic clutch attracting state contact K1 closure, the electromagnetic clutch
The electric current of coil L1 can be reduced to smaller value, and electromagnetic clutch X1 can be reliably attracted at this time and electromagnetic clutch coil L1 will not
Fever；If electric ground switch control device does not monitor electromagnetic clutch attracting state contact K1 within the set time
Closure, electric ground switch control device can determine that electromagnetic clutch X1 breaks down and stops current operation, while give user
Feed back fault message.
The utility model solves following technical problem: using the electric ground switch control device of the utility model, leading to
The change in duty cycle for crossing the PWM wave of the pulsewidth modulation pin output of the microcontroller is mounted on electric ground switch to control
Electromagnetic clutch coil electric current, when the largest duty cycle of PWM wave, electromagnetic clutch high current strength is attracted, and works as PWM wave
Duty ratio when being adjusted to smaller, electromagnetic clutch low current low force is kept, and both ensure that the electromagnetic clutch of electric ground switch
Device can reliably switch, and electromagnetic clutch coil is prevented to cause to generate heat when being powered for a long time.
Since the electric ground switch control device solves the above technical problem, so that it effectively prevents electromagnetic clutch
The adverse consequences that device coil is burnt out improves electrically operated reliability.
A kind of electric ground switch control device provided by this patent embodiment is described in detail above, for
Those of ordinary skill in the art have in specific embodiments and applications according to the thought of this patent embodiment
Change place, in conclusion the content of the present specification should not be construed as the limitation to this patent, it is all to be done according to this patent design philosophy
Any change all within the protection scope of this patent.
Claims (3)
1. a kind of electric ground switch control device, including microcontroller, insulated gate bipolar transistor, the first optocoupler, second
Optocoupler, electromagnetic clutch winding wiring terminal, electromagnetic clutch attracting state contact lug terminal, diode, resistance, capacitor,
It is characterized by: the microcontroller is the control centre of electric ground switch control device, for responding user instruction, carrying out
Logic judgment simultaneously makes corresponding action control；The insulated gate bipolar transistor is according to the pulsewidth modulation of the microcontroller
The change in duty cycle of the PWM wave of pin output controls the electric current of the electromagnetic clutch coil being mounted on electric ground switch；
First optocoupler is described for microcontroller and the electromagnetic clutch attracting state contact lug terminal described in electrical isolation
Second optocoupler is corresponded to for microcontroller and the insulated gate bipolar transistor described in electrical isolation, and by optical signal transmission
The level change of pin；The electromagnetic clutch winding wiring terminal is used to connect the electromagnetic clutch coil of electric ground switch
Lead；The electromagnetic clutch attracting state contact lug terminal is used to connect the electromagnetic clutch attracting state of electric ground switch
The lead of contact.
2. a kind of electric ground switch control device according to claim 1, it is characterised in that: the electromagnetic clutch line
Enclose connecting terminal output voltage can from 0 to the range of nominal tension in consecutive variations, with the electromagnetic clutch winding wiring
The electric current of the connected electromagnetic clutch coil of the terminal also corresponding change with applied alive variation.
3. a kind of electric ground switch control device according to claim 1, it is characterised in that: described when electric operating
It is maximum when the electric current of electromagnetic clutch coil starts, it is attracted electromagnetic clutch strength；When electric ground switch control device is supervised
After measuring electromagnetic clutch attracting state contact closure, the electric current of the electromagnetic clutch coil can be reduced to smaller value, at this time
Electromagnetic clutch can be reliably attracted and electromagnetic clutch coil will not generate heat；If electric ground switch within the set time
Control device does not monitor electromagnetic clutch attracting state contact closure, electric ground switch control device can determine electromagnetism from
Clutch breaks down and stops current operation, while giving user feedback fault message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821336043.7U CN208570471U (en) | 2018-08-17 | 2018-08-17 | A kind of electric ground switch control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821336043.7U CN208570471U (en) | 2018-08-17 | 2018-08-17 | A kind of electric ground switch control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208570471U true CN208570471U (en) | 2019-03-01 |
Family
ID=65450872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821336043.7U Active CN208570471U (en) | 2018-08-17 | 2018-08-17 | A kind of electric ground switch control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208570471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807077A (en) * | 2018-08-17 | 2018-11-13 | 苏州达宏电子科技有限公司 | A kind of electric ground switch control device |
| CN116225143A (en) * | 2023-03-13 | 2023-06-06 | 河北盛马电子科技有限公司 | Control circuit of vending machine with door opening cabinet |
-
2018
- 2018-08-17 CN CN201821336043.7U patent/CN208570471U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807077A (en) * | 2018-08-17 | 2018-11-13 | 苏州达宏电子科技有限公司 | A kind of electric ground switch control device |
| CN116225143A (en) * | 2023-03-13 | 2023-06-06 | 河北盛马电子科技有限公司 | Control circuit of vending machine with door opening cabinet |
| CN116225143B (en) * | 2023-03-13 | 2023-10-27 | 河北盛马电子科技有限公司 | Control circuit of vending machine with door opening cabinet |
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