CN107706016B - Automatic safety warning device for electrified switch cabin - Google Patents
Automatic safety warning device for electrified switch cabin Download PDFInfo
- Publication number
- CN107706016B CN107706016B CN201610640753.8A CN201610640753A CN107706016B CN 107706016 B CN107706016 B CN 107706016B CN 201610640753 A CN201610640753 A CN 201610640753A CN 107706016 B CN107706016 B CN 107706016B
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- switch
- indicator lamp
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- normally
- digital conversion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Push-Button Switches (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses an automatic safety warning device for a live switch cabin, which comprises a switch cabin body, a detection module, a warning module and a cabin door control module, wherein the switch cabin body is provided with a busbar, a switch normally-closed contact, a switch normally-open contact and a load cable wiring terminal; the detection module collects voltage signals of the busbar and the load cable wiring terminal and processes the voltage signals by the analog-to-digital conversion unit, and the warning module displays the voltage signals and lights corresponding indicator lamps according to the signals of the analog-to-digital conversion unit, the states of a normally closed contact of a switch and a normally open contact of the switch; the bin gate control module controls the opening and closing of the magnetic type door lock through the control unit according to signals of the unlocking button and the analog-digital conversion unit. The device overcomes the defects of the existing switch bin on safety protection, can provide warning in time during misoperation of maintenance operation, and prevents accidents in the bud, thereby avoiding the occurrence of electric shock injury accidents and avoiding potential safety hazards.
Description
Technical Field
The invention relates to an automatic safety warning device for a live switch cabin.
Background
The switch cabin is a breaking device which is commonly used for supplying power to an electric load such as a motor and the like in an electric system, a switch is switched on, and the load is electrified; the switch is opened, and the load loses power. Therefore, the switch cabin has good and bad performance, and the reliability and safety of power supply are directly influenced. Therefore, no matter the switch cabin body or the control, measurement and protection device of the switch is continuously improved through research, so that the switch cabin is increasingly miniaturized, lightened and intelligent, the use is more and more convenient, and the function is more and more powerful.
However, the safety protection of the electrified part of the switch cabin, especially the safety protection of the electrified busbar and the electrified load cable in the rear door of the switch cabin, is usually ignored at present, and is either directly exposed or is simply shielded by a transparent plastic cover (cover). The electrified busbar or the electrified load cable is mistakenly opened and touched by a maintainer due to the fact that the maintainer does not confirm or confirm carelessness, walks by mistake, and has great potential safety hazard.
If the safety protection mode of the existing switch cabin is not emphasized and improved, the damage accidents are still inevitable.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic safety warning device for a live switch cabin, which overcomes the defects of the existing switch cabin in safety protection, can provide warning in time when the misoperation of maintenance operation occurs, and prevents accidents from happening in the bud, thereby avoiding electric shock injury accidents and avoiding potential safety hazards.
In order to solve the technical problem, the automatic safety warning device for the electrified switch cabin comprises a switch cabin body, wherein a bus bar, a switch normally closed contact, a switch normally open contact and a load cable wiring terminal are arranged in the switch cabin body;
the detection module comprises a busbar voltage acquisition mutual inductor, a load voltage acquisition mutual inductor and an analog-to-digital conversion unit, wherein the input ends of the busbar voltage acquisition mutual inductor and the load voltage acquisition mutual inductor are respectively connected with the busbar and a load cable wiring terminal, and the output ends of the busbar voltage acquisition mutual inductor and the load voltage acquisition mutual inductor are respectively connected with the input end of the analog-to-digital conversion unit;
the warning module comprises a switch closing indicator lamp, a switch opening indicator lamp, a display screen and an unlocking button, the switch closing indicator lamp is connected to the switch normally-open contact, the switch opening indicator lamp is connected to the switch normally-closed contact, the unlocking button is connected to the switch normally-closed contact in parallel, and the signal input end of the display screen is connected with the signal output end of the analog-to-digital conversion unit;
door control module is including inhaling formula lock and the control unit by magnetism, magnetism is inhaled the formula lock and is located the back door of switch storehouse body, the control unit's signal input part is connected the signal output part and the button of unblanking of analog-to-digital conversion unit, the control unit's signal output part is connected the formula lock is inhaled to magnetism.
Further, the switch closing indicator lamp is a red indicator lamp, after the switch is closed, the normally open contact of the switch is closed, the switch closing indicator lamp flashes, the switch opening indicator lamp is a green indicator lamp, the normally closed contact of the switch is closed when the switch is opened, and the switch opening indicator lamp flashes.
Further, the control unit controls the opening and closing of the magnetic type door lock according to the output signal of the analog-to-digital conversion unit and the unlocking button signal.
Further, the conditions of the unlocking signal sent by the control unit are three conditions of switching off of the switch, power failure of the load cable wiring terminal and closing of an unlocking button; the condition that the control unit sends out the locking signal is that the switch is closed or a load cable terminal is electrified.
Further, switch combined floodgate pilot lamp, switch separating brake pilot lamp, display screen and unlocking button locate the back door of switch storehouse body.
The automatic safety warning device with the switch cabin adopts the technical scheme, namely the device comprises a switch cabin body, a detection module, a warning module and a cabin door control module, wherein the switch cabin body is provided with a bus bar, a switch normally closed contact, a switch normally open contact and a load cable wiring terminal; the detection module collects voltage signals of the busbar and the load cable wiring terminal and processes the voltage signals by the analog-to-digital conversion unit, and the warning module displays the voltage signals and lights corresponding indicator lamps according to the signals of the analog-to-digital conversion unit, the states of a normally closed contact of a switch and a normally open contact of the switch; the bin gate control module controls the opening and closing of the magnetic type door lock through the control unit according to signals of the unlocking button and the analog-digital conversion unit. The device overcomes the defects of the existing switch bin on safety protection, can provide warning in time during misoperation of maintenance operation, and prevents accidents in the bud, thereby avoiding the occurrence of electric shock injury accidents and avoiding potential safety hazards.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a schematic block diagram of an automatic safety warning device with a switch cabin according to the present invention;
fig. 2 is a schematic layout view of a rear door of the switch cabin body in the device.
Detailed Description
The embodiment of the invention is shown in fig. 1 and fig. 2, the automatic safety warning device for the electrified switch cabin comprises a switch cabin body 1, wherein a busbar 11, a switch 12, a switch normally closed contact 13, a switch normally open contact 14 and a load cable wiring terminal 15 are arranged in the switch cabin body 1, and the automatic safety warning device further comprises a detection module 3, a warning module 2 and a cabin door control module 4;
the detection module 3 comprises a busbar voltage acquisition mutual inductor 32, a load voltage acquisition mutual inductor 33 and an analog-to-digital conversion unit 31, wherein the input ends of the busbar voltage acquisition mutual inductor 32 and the load voltage acquisition mutual inductor 33 are respectively connected with the busbar 11 and the load cable wiring terminal 15, and the output ends of the busbar voltage acquisition mutual inductor and the load voltage acquisition mutual inductor 33 are respectively connected with the input end of the analog-to-digital conversion unit 31;
the warning module 2 comprises a switch closing indicator lamp 21, a switch opening indicator lamp 22, a display screen 23 and an unlocking button 24, the switch closing indicator lamp 21 is connected to the switch normally-open contact 14, the switch opening indicator lamp 22 is connected to the switch normally-closed contact 13, the unlocking button 24 is connected in parallel to the switch normally-closed contact 13, and a signal input end of the display screen 23 is connected with a signal output end of the analog-to-digital conversion unit 31;
storehouse door control module 4 is including inhaling formula lock 41 and the control unit 42 by magnetism, inhale formula lock 41 and locate the back door 11 of switch storehouse body 1, the signal input part of the control unit 42 connects the signal output part and the button of unblanking 24 of analog-to-digital conversion unit 31, the signal output part of the control unit 42 is connected formula lock 41 is inhaled to magnetism.
Preferably, the switch closing indicator light 21 is a red indicator light, the switch normally-open contact 14 is closed after the switch 12 is closed, the switch closing indicator light 21 flashes, the switch opening indicator light 22 is a green indicator light, the switch normally-closed contact 13 is closed when the switch 12 is opened, and the switch opening indicator light 22 flashes.
Preferably, the control unit 42 controls the opening and closing of the magnetic door lock 41 according to the output signal of the analog-to-digital conversion unit 31 and the signal of the unlocking button 24.
Preferably, the conditions of the control unit 42 for sending out the unlocking signal are three conditions of the switch 12 being opened, the load cable terminal 15 being powered off and the unlocking button 24 being closed; the control unit 42 sends a blocking signal if the switch 12 is closed or if the load cable connection 15 is live.
As shown in fig. 2, the switch closing indicator lamp 21, the switch opening indicator lamp 22, the display screen 23 and the unlocking button 24 are preferably provided on the rear compartment door 11 of the switch compartment body.
The device respectively collects the voltages of the busbar and the load cable wiring terminal in the switch cabin body through the busbar voltage collection mutual inductor and the load voltage collection mutual inductor, and the voltages are displayed through a display screen after being processed by the analog-to-digital conversion unit; meanwhile, the switch closing indicator light and the switch opening indicator light respectively display the switch states, and the unlocking button controls the opening and closing of the rear bin door of the switch bin through the magnetic type door lock and the control unit.
When the switch is in a switch-on state, the switch-on indicator lamp flickers, the analog-to-digital conversion unit outputs a voltage signal, the display screen respectively displays the actual voltages of the busbar and the load cable wiring terminal, the lock button is pressed to be invalid, and the magnetic type door lock is kept closed; under the switch separating brake state, the switch separating brake pilot lamp glimmers, and analog-to-digital conversion unit does not have voltage signal output, and the display screen shows that load cable binding post voltage is zero, pushes down the lock button this moment, and magnetism is inhaled formula lock and will be opened, and the door can be opened behind the switch storehouse, and electrician's operation personnel can implement the maintenance operation. The device overcomes the defect of the existing switch bin on safety protection, so that electrician operating personnel can be warned in time to prevent accidents in the bud, thereby avoiding the occurrence of electric shock injury accidents.
Claims (5)
1. The utility model provides an automatic safe warning device in electrified switch storehouse, includes the switch storehouse body, this internal female arranging, switch normally closed contact, switch normally open contact and the load cable binding post of being equipped with in switch storehouse, its characterized in that: the device also comprises a detection module, a warning module and a bin gate control module;
the detection module comprises a busbar voltage acquisition mutual inductor, a load voltage acquisition mutual inductor and an analog-to-digital conversion unit, wherein the input ends of the busbar voltage acquisition mutual inductor and the load voltage acquisition mutual inductor are respectively connected with the busbar and a load cable wiring terminal, and the output ends of the busbar voltage acquisition mutual inductor and the load voltage acquisition mutual inductor are respectively connected with the input end of the analog-to-digital conversion unit;
the warning module comprises a switch closing indicator lamp, a switch opening indicator lamp, a display screen and an unlocking button, the switch closing indicator lamp is connected to the switch normally-open contact, the switch opening indicator lamp is connected to the switch normally-closed contact, the unlocking button is connected to the switch normally-closed contact in parallel, and the signal input end of the display screen is connected with the signal output end of the analog-to-digital conversion unit;
door control module is including inhaling formula lock and the control unit by magnetism, magnetism is inhaled the formula lock and is located the back door of switch storehouse body, the control unit's signal input part is connected the signal output part and the button of unblanking of analog-to-digital conversion unit, the control unit's signal output part is connected the formula lock is inhaled to magnetism.
2. The automatic safety warning device for the electrified switch cabin according to claim 1, characterized in that: the switch closing indicator lamp is a red indicator lamp, after the switch is closed, the normally open contact of the switch is closed, the switch closing indicator lamp flashes, the switch opening indicator lamp is a green indicator lamp, the normally closed contact of the switch is closed when the switch is opened, and the switch opening indicator lamp flashes.
3. The automatic safety warning device for the electrified switch cabin according to claim 1, characterized in that: and the control unit controls the opening and closing of the magnetic type door lock according to the output signal of the analog-to-digital conversion unit and the unlocking button signal.
4. The automatic safety warning device for the electrified switch cabin according to claim 3, characterized in that: the condition that the control unit sends out the unlocking signal is three conditions of switching off of the switch, power failure of the load cable wiring terminal and closing of an unlocking button; the condition that the control unit sends out the locking signal is that the switch is closed or a load cable terminal is electrified.
5. The automatic safety warning device for the electrified switch cabin according to claim 1, characterized in that: the switch closing indicator light, the switch opening indicator light, the display screen and the unlocking button are arranged on a rear bin door of the switch bin body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640753.8A CN107706016B (en) | 2016-08-08 | 2016-08-08 | Automatic safety warning device for electrified switch cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640753.8A CN107706016B (en) | 2016-08-08 | 2016-08-08 | Automatic safety warning device for electrified switch cabin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107706016A CN107706016A (en) | 2018-02-16 |
| CN107706016B true CN107706016B (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610640753.8A Active CN107706016B (en) | 2016-08-08 | 2016-08-08 | Automatic safety warning device for electrified switch cabin |
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| Country | Link |
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| CN (1) | CN107706016B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7470918B2 (en) * | 2020-04-24 | 2024-04-19 | パナソニックＩｐマネジメント株式会社 | Safety switches and switch systems |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202533570U (en) * | 2011-12-31 | 2012-11-14 | 山东亿玛信诺电气有限公司 | Electrification display device for electric power measuring box |
| WO2015080708A1 (en) * | 2013-11-26 | 2015-06-04 | Schneider Electric USA, Inc. | Current transformer retainers for enclosure knock outs |
| CN204927858U (en) * | 2015-08-17 | 2015-12-30 | 济宁精创开关电器有限公司 | Novel multi -functional high pressure measurement cabinet of prepayment |
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2016
- 2016-08-08 CN CN201610640753.8A patent/CN107706016B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202533570U (en) * | 2011-12-31 | 2012-11-14 | 山东亿玛信诺电气有限公司 | Electrification display device for electric power measuring box |
| WO2015080708A1 (en) * | 2013-11-26 | 2015-06-04 | Schneider Electric USA, Inc. | Current transformer retainers for enclosure knock outs |
| CN204927858U (en) * | 2015-08-17 | 2015-12-30 | 济宁精创开关电器有限公司 | Novel multi -functional high pressure measurement cabinet of prepayment |
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| Publication number | Publication date |
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| CN107706016A (en) | 2018-02-16 |
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Address after: 3520 Tongji Road, Baoshan District, Shanghai 201900 Patentee after: Baowu equipment Intelligent Technology Co.,Ltd. Address before: 201900, 335, Pu Pu Road, Shanghai, Baoshan District Patentee before: SHANGHAI BAOSTEEL INDUSTRY TECHNOLOGICAL SERVICE Co.,Ltd. |