CN105006799B - A kind of equipment zero load safety power-off device and its control method - Google Patents
A kind of equipment zero load safety power-off device and its control method Download PDFInfo
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- CN105006799B CN105006799B CN201510487271.9A CN201510487271A CN105006799B CN 105006799 B CN105006799 B CN 105006799B CN 201510487271 A CN201510487271 A CN 201510487271A CN 105006799 B CN105006799 B CN 105006799B
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Abstract
The present invention provides a kind of equipment zero load safety power-off device, including：Shell, central processing unit, input interface, output interface, display unit, power supply module, the central processing unit is connected with the input interface and the output interface, the input interface is connect with the main operation contactor of equipment, the output interface is connect with equipment power switch, the display unit is connected with the central processing unit, the power supply module is connected with equipment power switch, and the shell accommodates the central processing unit, input interface, output interface, display unit, power supply module for installing.The breaker device solves the problems, such as to forget Electrical Safety caused by pass hull closure power supply because staff leaves operation field for a long time.
Description
Technical field
The present invention relates to field device electrical safety technical field, it is that one kind is small, safe and reliable, accurately sets in real time
Standby zero load safety power-off device.
Background technology
Safety management in production is extremely important, can be related to people, machine, ring, method, the several aspects of material, wherein " machine " is
The production equipment at scene.Safety management for production equipment, the measure that we take at present have：Periodically point inspection, maintenance, electrically
Aging circuit and insulation resistance inspection, formulation equipment operation safety regulation for operations etc..But any management measure has careless omission, deposits
In deficiency.In the case where staff leaves operation field (including coming off duty) and forgets pass hull closure power supply for a long time, generate
Electrical Safety problem, while waste is generated to the energy.
Invention content
A kind of equipment zero load safety power-off device of present invention offer and its control method, to solve because of staff for a long time
It leaves operation field and forgets Electrical Safety problem caused by pass hull closure power supply.
To achieve the goals above, the present invention provides the following technical solutions：
A kind of equipment zero load safety power-off device, including：Shell, central processing unit, input interface, output interface, display
Unit, power supply module, the central processing unit are connected with the input interface and the output interface, the input interface with set
Standby main operation contactor connects, and the output interface is connect with equipment power switch, the display unit and the central processing
Device is connected, and the power supply module is connected with equipment power switch, and the shell accommodates the central processing unit, input for installing
Interface, output interface, display unit, power supply module；
When the main operation contactor of equipment disconnects, the chain disconnection of normally opened contact being connected in the present apparatus, central processing unit is examined
Timer internal starts timing after measuring this shutoff signal, after timing reaches the actuation time of setting, central processing unit hair
Going out driving instruction makes circuit breaker tripping coil energizing magnetic, and breaker automatic trip is driven by magnetic force, if during equipment is
Between the short time interval shut down, operating personnel again to equipment carried out operation operation, then reset timing signal.
Preferably, the display unit includes operation module and display module.
Preferably, for the operation module for setting power-off time interval, the display module is aobvious using charactron or LED
Display screen.
Preferably, the input interface and the main operation contactor connection type of equipment are crimp type terminal form or connector shape
Formula, the output interface are crimp type terminal form or connector form with equipment power switch connection type.
Preferably, the breaker device further includes manual test module, the input interface and the manual test module
Connection.
To achieve the goals above, the present invention provides the following technical solutions：
A kind of control method of equipment zero load safety power-off device, includes the following steps：
S1：When equipment downtime but when main power source is not yet closed, the normally opened contact of the main operation contactor of equipment disconnect and by this
One airborne signals feed back to central processing unit, and central processing unit obtains the main operation contactor airborne signals of equipment, the centre
Reason device obtains the main operation contactor airborne signals of equipment：Numerical control device control program in extraction one with drive outside connect
Then the intermediate relay connect obtains airborne signals from the intermediate relay again；
S2：Timing is carried out to airborne signals, obtains airborne signals duration t1；
S3：Judge airborne signals duration t1Whether power-off time interval of delta t is more than or equal to, if airborne signals continue
Time t1>=power-off time interval of delta t, thens follow the steps S4, otherwise, resets timing signal；
S4：Control device power switch automatic trip powers off, and the control device power switch automatic trip power-off includes：
Central processing unit connects the tripping coil power supply on equipment power switch by power-off signal, and the tripping coil power supply controls institute
State equipment power switch automatic trip power-off.
Preferably, the power-off time interval of delta t is 30 minutes.
The beneficial effects of the present invention are：
The present invention provides a kind of equipment zero load safety power-off devices, when production operation personnel leave operation field for a long time
And when being not turned off equipment power supply, the device can setting time interval (being arranged according to actual demand) afterwards automatic cutting equipment electricity
Source has not only ensured equipment Electrical Safety but also has saved the energy.
Description of the drawings
Fig. 1 is a kind of equipment zero load safety power-off device fundamental diagram of the present invention.
Fig. 2 is a kind of equipment zero load safety power-off device control flow chart of the present invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
In order to solve to forget pass hull closure power supply because staff leaves operation field (including come off duty) for a long time and lead
A kind of Electrical Safety problem of cause, as shown in Figure 1, the present invention provides equipment zero load safety power-off devices, which is characterized in that packet
It includes：Shell, central processing unit, input interface, output interface, display unit, power supply module, the central processing unit with it is described defeated
Incoming interface is connected with the output interface, and the input interface is connect with the main operation contactor of equipment, the output interface with set
Stand-by power source switch connection, the display unit are connected with the central processing unit, the power supply module and equipment power switch phase
Even, the shell accommodates the central processing unit, input interface, output interface, display unit, power supply module for installing.
Wherein, described device sheathing material be ABS engineering plastics, constituent apparatus main body, for install storing apparatus its
Remaining each building block, degree of protection IP20.
Wherein, the display unit is made of operation module and display module, and operation module is used to set between outage detection
Every the time, according to demand can 0 to range for 24 hours be arranged.Charactron letter can be used with (being only able to display the time of setting in display module
Value), LED display can also be used as high end configuration (actuation time and the number that can additionally show recording device).
Wherein, the input/output interface is used for receiving device airborne signals and power-off signal, is CPU element and outside
The transition element of signal connection does not have control and changes the function of signal type, crimp type terminal form or connector can be used
Form.
The CPU can be used microcontroller as main body constitute, be the brain of breaker device of the present invention, by microcontroller into
The corresponding programming of row is, it can be achieved that be detected equipment airborne signals and stimulus, timing and the (timing of time-controlled function
Device function), it is powered off for control device.CPU element is similar to Timer Controlling principle, when the main operation contactor of equipment disconnects,
The chain disconnection of normally opened contact being connected in the present apparatus, timer internal starts meter after CPU element detects this shutoff signal
When, after timing reaches the actuation time of setting, CPU element, which sends out driving instruction, makes the energization of circuit breaker tripping coil generate magnetic
Property, breaker automatic trip is driven by magnetic force, it is final to realize unloaded safe power down function.
In addition, the breaker device further includes manual test module, the input interface connects with the manual test module
It connects.Be provided with the manual test module on device panel, manual test module by the trigger signal of hand push button with set
Standby idle time is more than that the signal at setting time interval is suitable, real-time for detecting breaker device action of the present invention and effectively
Property.
The equipment zero load safety power-off device uses AC220V working powers, power supply to be derived under equipment power switch
It holds, after device powers down, present apparatus power supply is also turned off.
As shown in Fig. 2, for a kind of equipment zero load safety power-off device control flow chart of the present invention.The present invention provides one
Kind equipment zero load safety power-off device control method, includes the following steps：
S1：Central processing unit obtains the main operation contactor airborne signals of equipment；
S2：Timing is carried out to airborne signals, obtains airborne signals duration t1；
S3：Judge airborne signals duration t1Whether power-off time interval of delta t is more than or equal to, if airborne signals continue
Time t1>=power-off time interval of delta t, thens follow the steps S4, otherwise, resets timing signal；
S4：Control device power switch automatic trip powers off.
Before equipment zero load safety power-off device comes into operation, CPU element has woven control program, it can be achieved that timing, fixed
When control function, the power-off time interval of the good present apparatus of manual setting, such as 30min.In Fig. 1, the unloaded safety of equipment is disconnected
Electric installation is mounted on equipment power switch (band takes off the low-voltage circuit breaker of mouth line circle) between the main operation contactor of equipment, zero load letter
It number can be extracted from one group of normally opened contact of main operation contactor.When equipment downtime but when main power source is not yet closed, the main fortune of equipment
Row contactor disconnects and this signal is fed back to equipment zero load safety power-off device.Present apparatus CPU element to airborne signals into
Row detection timing, timing controlled.It is shut down if equipment is intermediate short time interval, such as operating personnel pair set again in 10min
It is standby to have carried out operation operation, then reset timing signal.If (such as reaching setting time 30min, time length can be in some time
Freely set) operating personnel have not carried out relevant operation to equipment again, then present apparatus CPU just give tacit consent to be operating personnel
The case where leaving working site (next pattern) and forgetting pass hull closure main power source has occurred.In this case, CPU sends out one
A control instruction connects the tripping coil power supply on equipment main switch, and tripping coil obtains the magnetic drive equipment power switch of electric generation
Automatic trip powers off, and plays safety protection function.
Further, test signal is used to detect the validity of the present apparatus, is a manual test mould by being installed on device
What block was sent out, press manual test module button can simulation no-load signal to detection device action real-time and effectively
Property.Display unit has number and the time of display device action, and the function of present apparatus de-energizing actions time is arranged.
The present apparatus is applied when on numerical control device, and a master control contact can be extracted in numerical control device PLC control program
The intermediate relay for driving external connection, then obtains airborne signals from the intermediate relay again.
The present invention provides a kind of equipment zero load safety power-off device, have small, safe and reliable, device body can pacify
In the electrical control cabinet of equipment itself, the characteristics of exceptional space need not be occupied.When production operation personnel leave for a long time
Operation field and when being not turned off equipment power supply, which can automatically cut afterwards in the time interval (being arranged according to actual demand) of setting
Disconnected equipment power supply, has not only ensured equipment Electrical Safety but also has saved the energy.
Particular embodiments described above has been further described the purpose of the present invention, technical solution, is answered
Understand, the above is only a specific embodiment of the present invention, is not intended to restrict the invention, all essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should all be included in the protection scope of the present invention god.
Claims (7)
1. a kind of equipment zero load safety power-off device, which is characterized in that including：Shell, central processing unit, input interface, output
Interface, display unit, power supply module, the central processing unit are connected with the input interface and the output interface, described defeated
Incoming interface is connect with the main operation contactor of equipment, and the output interface is connect with equipment power switch, the display unit and institute
It states central processing unit to be connected, the power supply module is connected with equipment power switch, and the shell accommodates the center for installing
Processor, input interface, output interface, display unit, power supply module；
When the main operation contactor of equipment disconnects, the chain disconnection of normally opened contact being connected in the present apparatus, central processing unit detects
Timer internal starts timing after this shutoff signal, and after timing reaches the actuation time of setting, central processing unit sends out drive
Dynamic instruction makes circuit breaker tripping coil energizing magnetic, and breaker automatic trip is driven by magnetic force, if equipment is intermediate short
Time interval is shut down, and operating personnel have carried out operation operation to equipment again, then reset timing signal.
2. breaker device according to claim 1, which is characterized in that the display unit includes operation module and display mould
Block.
3. breaker device according to claim 2, which is characterized in that the operation module is used to set power-off time interval,
The display module uses charactron or LED display.
4. breaker device according to claim 1, which is characterized in that the input interface is connect with the main operation contactor of equipment
Mode is crimp type terminal form or connector form, and the output interface is crimp type terminal shape with equipment power switch connection type
Formula or connector form.
5. breaker device according to claim 1, which is characterized in that the breaker device further includes manual test module, institute
Input interface is stated to connect with the manual test module.
6. a kind of control method of equipment zero load safety power-off device, which is characterized in that include the following steps：
S1：When equipment downtime but when main power source is not yet closed, the normally opened contact of the main operation contactor of equipment disconnects this sky simultaneously
Information carrying number feeds back to central processing unit, and central processing unit obtains the main operation contactor airborne signals of equipment, the central processing unit
Obtaining the main operation contactor airborne signals of equipment includes：One and driving external connection are extracted in numerical control device controls program
Then intermediate relay obtains airborne signals from the intermediate relay again；
S2：Timing is carried out to airborne signals, obtains airborne signals duration t1；
S3：Judge airborne signals duration t1Whether power-off time interval of delta t is more than or equal to, if the airborne signals duration
t1>=power-off time interval of delta t, thens follow the steps S4, otherwise, resets timing signal；
S4：Control device power switch automatic trip powers off, and the control device power switch automatic trip power-off includes：Center
Processor connects the tripping coil power supply on equipment power switch by power-off signal, is set described in the tripping coil power supply control
Stand-by power source switchs automatic trip power-off.
7. control method according to claim 6, which is characterized in that the power-off time interval of delta t is 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510487271.9A CN105006799B (en) | 2015-08-10 | 2015-08-10 | A kind of equipment zero load safety power-off device and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510487271.9A CN105006799B (en) | 2015-08-10 | 2015-08-10 | A kind of equipment zero load safety power-off device and its control method |
Publications (2)
| Publication Number | Publication Date |
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| CN105006799A CN105006799A (en) | 2015-10-28 |
| CN105006799B true CN105006799B (en) | 2018-10-30 |
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| CN201510487271.9A Active CN105006799B (en) | 2015-08-10 | 2015-08-10 | A kind of equipment zero load safety power-off device and its control method |
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| CN109116783A (en) * | 2018-09-19 | 2019-01-01 | 索尔思光电（成都）有限公司 | A kind of anti-electrostatic wrist ring monitor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2865970Y (en) * | 2005-09-13 | 2007-02-07 | 淄博博瑞工贸有限责任公司 | Electric welder no-load electricity-saving device |
| CN101458499A (en) * | 2007-12-10 | 2009-06-17 | 李树聪 | Energy-conserving protection module |
| CN104668829A (en) * | 2013-11-30 | 2015-06-03 | 四川鑫远志空间信息科技有限公司 | No-load APO (Automatic Power Off) circuit of electric welding machine |
| CN104708167A (en) * | 2013-12-11 | 2015-06-17 | 惠阳航空螺旋桨有限责任公司 | Electric welding machine energy-saving safety device |
| CN204928075U (en) * | 2015-08-10 | 2015-12-30 | 安徽江淮汽车股份有限公司 | Unloaded safe device that cuts off power supply of equipment |
-
2015
- 2015-08-10 CN CN201510487271.9A patent/CN105006799B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2865970Y (en) * | 2005-09-13 | 2007-02-07 | 淄博博瑞工贸有限责任公司 | Electric welder no-load electricity-saving device |
| CN101458499A (en) * | 2007-12-10 | 2009-06-17 | 李树聪 | Energy-conserving protection module |
| CN104668829A (en) * | 2013-11-30 | 2015-06-03 | 四川鑫远志空间信息科技有限公司 | No-load APO (Automatic Power Off) circuit of electric welding machine |
| CN104708167A (en) * | 2013-12-11 | 2015-06-17 | 惠阳航空螺旋桨有限责任公司 | Electric welding machine energy-saving safety device |
| CN204928075U (en) * | 2015-08-10 | 2015-12-30 | 安徽江淮汽车股份有限公司 | Unloaded safe device that cuts off power supply of equipment |
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| CN105006799A (en) | 2015-10-28 |
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| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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