CN114784664A - Electrical cabinet integrated plugging device and control method thereof - Google Patents
Electrical cabinet integrated plugging device and control method thereof Download PDFInfo
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- CN114784664A CN114784664A CN202210421873.4A CN202210421873A CN114784664A CN 114784664 A CN114784664 A CN 114784664A CN 202210421873 A CN202210421873 A CN 202210421873A CN 114784664 A CN114784664 A CN 114784664A
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- 238000000034 method Methods 0.000 title claims description 16
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000003993 interaction Effects 0.000 claims abstract description 4
- 238000013016 damping Methods 0.000 claims description 28
- 230000035939 shock Effects 0.000 claims description 24
- 239000000779 smoke Substances 0.000 claims description 20
- 238000010521 absorption reaction Methods 0.000 claims description 19
- 230000004927 fusion Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000005060 rubber Substances 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004080 punching Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
- H02B1/34—Racks
- H02B1/36—Racks with withdrawable units
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/54—Anti-seismic devices or installations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire Alarms (AREA)
Abstract
The invention discloses an integrated plugging device for an electric cabinet, which comprises a control module, and a voltage acquisition module, a temperature and humidity acquisition module, a current acquisition module, a circuit breaker state detection module and a man-machine interaction module which are connected with the control module, wherein the voltage acquisition module, the temperature and humidity acquisition module, the current acquisition module, the circuit breaker state detection module and the control module are integrated on a circuit board to form an integrated detection unit, and the control module is connected to a remote terminal. The drawer unit is integrated with the modules, voltage, current, temperature and humidity of the drawer unit and state position collection of the state switch are achieved, occupied space is reduced, punching times are reduced, rigidity and strength of the drawer unit are improved, and mounting difficulty and manufacturing cost are reduced.
Description
Technical Field
The invention relates to an electrical cabinet integrated plugging device and a control method thereof, belonging to the technical field of electrical drawer units.
Background
The current regulator cubicle adopts the drawer unit mode, and the drawer unit controls the intercommunication and the disconnection of inlet wire end and outlet terminal in the pull of drawer, and inside current transformer, the voltage acquisition who arranges all are independent module settings, easy occupation space, and need punch at the drawer unit, reduce equipment rigidity and intensity, because of the difference of different producer model specifications, also be difficult to the unified installation, increase the cost of manufacture of drawer unit.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides an integrated grafting device of regulator cubicle and control method thereof to solve the problem that exists among the above-mentioned prior art.
The technical scheme adopted by the invention is as follows: the integrated plugging device for the electrical cabinet comprises a control module, and a voltage acquisition module, a temperature and humidity acquisition module, a current acquisition module, a circuit breaker state detection module and a human-computer interaction module which are connected with the control module, wherein the voltage acquisition module, the temperature and humidity acquisition module, the current acquisition module, the circuit breaker state detection module and the control module are integrated on a circuit board to form an integrated detection unit, and the control module is connected to a remote terminal.
Preferably, the integrated grafting device of regulator cubicle still includes the drawer box, integrated detecting element installs in the drawer box, drawer box rear side is installed the inlet wire and is moved the plug-in components and be qualified for the next round of competitions and move the plug-in components, the inlet wire is moved the plug-in components and is qualified for the next round of competitions and move between the plug-in components and be connected mechanical type circuit breaker through the wire, mechanical type circuit breaker's action bars stretches out and connects operating handle behind the front side of drawer box, the detection sensor of circuit breaker state detection module adopts force transducer, force transducer one end is articulated to articulated seat through the connecting rod, the other end is connected to the rotatory handle through the spring, rotatory handle fixed connection is on the action bars, the spring all keeps tensile state at different states in the action bars rotation, articulated seat fixed connection is in the drawer box.
Preferably, the mechanical circuit breaker is provided with a temperature-sensing self-starting fire extinguisher at one side opposite to the mechanical circuit breaker, the control module is further connected with a flame sensor and a smoke sensor, and the flame sensor and the smoke sensor are arranged in the drawer box.
Preferably, the two sides of the drawer box are provided with symmetrical fixing plates, each fixing plate is connected to one roller mounting plate through a plurality of damping rubbers, the fixing plates penetrate through side wall holes of the drawer box and then are connected to a damping shock absorption box, and the damping shock absorption box is fixedly connected in the drawer box.
Preferably, a plurality of damping grooves are arranged in the damping shock absorption box, steel balls with different diameters are arranged in the damping grooves, and the quantity of the damping steel balls is determined through tests.
A control method of an electrical cabinet integrated plugging device comprises the following steps: voltage, temperature and humidity of the drawer unit, current and breaker state information are transmitted to a control module by adopting voltage, temperature and humidity of the drawer unit, current and breaker state information respectively acquired by a voltage acquisition module, a temperature and humidity acquisition module, a current acquisition module and a breaker state detection module, the control module processes the voltage, temperature and humidity of the drawer unit, the current and the breaker state information and transmits the processed signals to a remote terminal, and the remote terminal changes according to each monitored parameter; the method comprises the steps that corresponding digital quantities are obtained after AD conversion is conducted according to temperature values, flame values and smoke concentration values measured by a temperature and humidity acquisition module, a flame sensor and a smoke sensor, fusion is conducted through an algorithm in a control module to obtain a fusion value, when the fusion value reaches a set threshold value, a fire disaster is judged to happen, data are transmitted to a remote terminal to give an alarm, and when the temperature reaches the temperature of the temperature sensing automatic fire extinguisher, a valve is automatically opened to extinguish a fire for a circuit breaker and a drawer unit.
The invention has the beneficial effects that: compared with the prior art, the invention has the following effects:
(1) according to the invention, the voltage, current, temperature and humidity of the drawer unit and the state position acquisition of the state switch are realized by adopting each integrated module, so that the occupied space is reduced, the punching times are reduced, the rigidity and strength of the drawer unit are improved, and the installation difficulty and the manufacturing cost are reduced;
(2) the state of the circuit breaker is tested by adopting the tension sensor, the state of the circuit breaker is determined according to the tension values in different ranges, the testing precision is greatly improved, the manufacturing is simple, the existing old mechanical circuit breaker is modified, the ball hinge and the spring are adopted for realizing the state improvement, the connection of the tension sensor is realized, the detection sensitivity of the tension sensor is not influenced, the installation is convenient and fast, and the connection is stable and reliable;
(3) the temperature sensing self-starting fire extinguisher is arranged, the fire is automatically extinguished when the temperature reaches the set temperature through temperature sensing, the use safety of the drawer unit is improved, the flame sensor and the smoke sensor are additionally arranged, the data of the flame sensor, the smoke sensor and the smoke sensor are fused and calculated in cooperation with temperature monitoring, the data are compared with a threshold value, the respective importance of the flame sensor, the smoke sensor and the smoke sensor is comprehensively considered, and the optimal fire judgment is realized;
(4) the damping box is characterized in that a plurality of damping rubbers are arranged in a severe working environment with large vibration, so that the damping effect of the drawer unit can be further improved, and the damping box is matched to reduce the overall damping effect and the stability of an internal movable plug-in or electric connection interface, so that the damage caused by local friction heating due to long-term shaking is avoided, and the damage probability of internal electrical elements is reduced; the damping groove structure is arranged, so that the damping effect is good, the damping groove structure can be arranged as required, and the optimal damping effect is achieved;
(5) the method can realize remote monitoring, comprehensively considers temperature values, flame values and smoke concentration values by adopting a fusion value comparison method, comprehensively fuses the temperature values, the flame values and the smoke concentration values to obtain a fusion value and threshold value comparison method, so that fire judgment is more accurate and stable, and fire judgment errors and misjudgment under a single factor are avoided.
Drawings
FIG. 1 is a schematic diagram of a control structure;
FIG. 2 is a schematic view of a drawer unit;
FIG. 3 is a schematic view of the connection of the shock absorbing structure;
fig. 4 is a schematic view of a tension sensor mounting structure.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Example 1: as shown in fig. 1-4, an integrated plugging device for an electrical cabinet comprises a control module, and a voltage acquisition module, a temperature and humidity acquisition module, a current acquisition module, a circuit breaker state detection module and a human-computer interaction module which are connected with the control module, wherein the voltage acquisition module, the temperature and humidity acquisition module, the current acquisition module, the circuit breaker state detection module and the control module are integrated on a circuit board to form an integrated detection unit, and the control module is connected to a remote terminal.
Preferably, the electrical cabinet integrated plugging device further comprises a drawer box 1, an integrated detection unit is installed in the drawer box 1, a wire inlet movable plug-in unit 2 and a wire outlet movable plug-in unit 3 are installed on the rear side of the drawer box 1, a mechanical circuit breaker 4 is connected between the wire inlet movable plug-in unit 2 and the wire outlet movable plug-in unit 3 through a conducting wire, an operating rod of the mechanical circuit breaker 4 extends out of the front side of the drawer box 1 and then is connected with an operating handle, a detection sensor of a circuit breaker state detection module adopts a tension sensor 5, one end of the tension sensor 5 is hinged to a hinge seat 6 through a connecting rod, the other end of the tension sensor is connected to a rotating handle 8 through a connecting rod and a spring 7 which are connected in sequence, the rotating handle 8 is fixedly connected to the operating rod, the spring 7 keeps a stretching state when the operating rod rotates in different states, the hinge seat 6 is fixedly connected in the drawer box 1, the state of the circuit breaker is tested by the tension sensor, the state of the circuit breaker is determined according to the tension value within different ranges, the testing precision is greatly improved, the circuit breaker is simple to manufacture, the existing old mechanical circuit breaker is refitted, the state is improved by adopting the spherical hinge and the spring, the connection of the tension sensor is realized, the detection sensitivity of the tension sensor cannot be influenced, the installation is convenient and fast, and the connection is stable and reliable. The tension sensor test method comprises the following steps: when the pressure value is in the range a1±Δ1When the circuit breaker is in a closing state, the pressure value is in a range a2±Δ2When the pressure is in the opening state, the pressure value is in the range a3±Δ3In time, in a maintenance state, a1、a2And a3Pressure values, Δ, of three states, respectively1、Δ2And Δ3The deviation values of the three pressure values are respectively.
Preferably, the mechanical circuit breaker 4 is just installed temperature sensing self-starting fire extinguisher 9 to one side, control module still is connected with flame sensor 10 and smoke transducer 16, flame sensor 10 and smoke transducer 16 are installed in drawer box 1, set up temperature sensing self-starting fire extinguisher, reach the settlement temperature through temperature-sensing, just put out a fire automatically, improve drawer unit's safety in utilization, install flame sensor and smoke transducer additional, cooperate the temperature monitoring, fuse the calculation with three's data, and compare with the threshold value, the importance of three has separately been considered in synthesis, realize best conflagration and judge.
Preferably, the two sides of the drawer box 1 are provided with symmetrical fixing plates 11, each fixing plate 11 is connected to one roller mounting plate 12 through a plurality of damping rubbers 15, the fixing plates 11 penetrate through side wall holes 17 of the drawer box 1 and then are connected to a damping shock absorption box 13, the damping shock absorption box 13 is fixedly connected in the drawer box 1, aiming at severe working environments with large vibration, a plurality of shock absorption grooves 14 are arranged in the damping shock absorption box 13, steel balls with different diameters are arranged in the shock absorption grooves 14, the quantity of the shock absorption steel balls is determined through tests, a plurality of damping rubbers are arranged, the shock absorption effect of the drawer unit can be further improved, the damping shock absorption box is matched, the overall shock absorption effect is reduced, the stability of an internal movable plug-in component or an electric connection interface is reduced, the damage caused by local friction heating due to long-term shaking is avoided, and the damage probability of internal electric elements is reduced; set up the shock attenuation groove structure, damping shock attenuation is effectual, can arrange as required, reaches best damping shock attenuation effect, and the shock attenuation groove adopts the detachable baffle to keep apart and forms, and the damping surge tank is upper end open structure, sets up along its length direction and inlays the groove to bilateral symmetry baffle more, can keep apart as required, improves equipment utilization and application scope greatly.
Example 2: a control method of an electrical cabinet integrated plugging device comprises the following steps: voltage, temperature and humidity of the drawer unit, current and breaker state information are transmitted to a control module by adopting voltage, temperature and humidity of the drawer unit, current and breaker state information respectively acquired by a voltage acquisition module, a temperature and humidity acquisition module, a current acquisition module and a breaker state detection module, the control module processes the voltage, temperature and humidity of the drawer unit, the current and the breaker state information and transmits the processed signals to a remote terminal, and the remote terminal changes according to each monitored parameter; the temperature value, the flame value and the smoke concentration value measured by the temperature and humidity acquisition module, the flame sensor and the smoke sensor are subjected to AD conversion to obtain corresponding digital quantity, fusion is carried out through an algorithm in the control module to obtain a fusion value, when the fusion value reaches a set threshold value, a fire disaster is judged to happen, data are transmitted to a remote terminal to give an alarm, and when the temperature reaches the temperature of the temperature sensing automatic fire extinguisher, a valve is automatically opened to extinguish the fire of the circuit breaker and the drawer unit.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and therefore the scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides an integrated grafting device of regulator cubicle which characterized in that: the intelligent control system comprises a control module, and a voltage acquisition module, a temperature and humidity acquisition module, a current acquisition module, a circuit breaker state detection module and a human-computer interaction module which are connected with the control module, wherein the voltage acquisition module, the temperature and humidity acquisition module, the current acquisition module, the circuit breaker state detection module and the control module are integrated on a circuit board to form an integrated detection unit, and the control module is connected to a remote terminal.
2. The electrical cabinet integrated plugging device according to claim 1, wherein: still include drawer box (1), integrated detecting element installs in drawer box (1), drawer box (1) rear side is installed the inlet wire and is moved plug-in components (2) and be qualified for the next round of competitions and move plug-in components (3), the inlet wire moves plug-in components (2) and is qualified for the next round of competitions and moves between plug-in components (3) and connect mechanical type circuit breaker (4) through the wire, the operating lever of mechanical type circuit breaker (4) stretches out the front side rear connection operating handle of drawer box (1), the detection sensor of circuit breaker state detection module adopts tension sensor (5), tension sensor (5) one end is articulated to articulated seat (6) through the connecting rod, the other end is connected to twist grip (8) through spring (7), twist grip (8) fixed connection is on the operating lever, spring (7) all keep tensile state in different states in the operating lever rotation, articulated seat (6) fixed connection is in drawer box (1).
3. The electrical cabinet integrated plugging device according to claim 2, wherein: the mechanical circuit breaker (4) is just opposite to one side and is installed temperature sensing self-starting fire extinguisher (9), and control module still is connected with flame sensor (10) and smoke transducer (16), and flame sensor (10) and smoke transducer (16) are installed in drawer box (1).
4. The electrical cabinet integrated plugging device according to claim 2, wherein: the two sides of the drawer box (1) are provided with symmetrical fixing plates (11), each fixing plate (11) is connected to one roller mounting plate (12) through a plurality of shock absorption rubbers (15), the fixing plates (11) penetrate through side wall holes of the drawer box (1) and then are connected to the damping shock absorption boxes (13), and the damping shock absorption boxes (13) are fixedly connected into the drawer box (1).
5. The electrical cabinet integrated plugging device according to claim 4, wherein: a plurality of shock absorption grooves (14) are arranged in the damping shock absorption box (13), steel balls with different diameters are arranged in the shock absorption grooves (14), and the quantity of the shock absorption steel balls is determined through tests.
6. The control method of the electrical cabinet integrated plugging device according to any one of claims 1 to 5, wherein: the method comprises the following steps: voltage, temperature and humidity of the drawer unit, current and breaker state information are transmitted to a control module by adopting voltage, temperature and humidity of the drawer unit, current and breaker state information respectively acquired by a voltage acquisition module, a temperature and humidity acquisition module, a current acquisition module and a breaker state detection module, the control module processes the voltage, temperature and humidity of the drawer unit, the current and the breaker state information and transmits the processed signals to a remote terminal, and the remote terminal changes according to each monitored parameter; the method comprises the steps that corresponding digital quantities are obtained after AD conversion is conducted according to temperature values, flame values and smoke concentration values measured by a temperature and humidity acquisition module, a flame sensor and a smoke sensor, fusion is conducted through an algorithm in a control module to obtain a fusion value, when the fusion value reaches a set threshold value, a fire disaster is judged to happen, data are transmitted to a remote terminal to give an alarm, and when the temperature reaches the temperature of the temperature sensing automatic fire extinguisher, a valve is automatically opened to extinguish a fire for a circuit breaker and a drawer unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210421873.4A CN114784664A (en) | 2022-04-21 | 2022-04-21 | Electrical cabinet integrated plugging device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210421873.4A CN114784664A (en) | 2022-04-21 | 2022-04-21 | Electrical cabinet integrated plugging device and control method thereof |
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| CN114784664A true CN114784664A (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210421873.4A Pending CN114784664A (en) | 2022-04-21 | 2022-04-21 | Electrical cabinet integrated plugging device and control method thereof |
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| CN (1) | CN114784664A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102216870A (en) * | 2008-11-21 | 2011-10-12 | 株式会社小松制作所 | Electric lever device |
| CN208738688U (en) * | 2018-06-06 | 2019-04-12 | 中山市明阳电器有限公司 | A kind of multifunctional unit distribution system |
| CN208923700U (en) * | 2018-10-08 | 2019-05-31 | 江苏江阴华明电气设备有限公司 | A kind of intelligent low voltage drawing-out switching carbinet with high reliability plug-in unit |
| CN214795110U (en) * | 2021-04-30 | 2021-11-19 | 浙江日新电气有限公司 | High-voltage circuit breaker state on-line monitoring system |
-
2022
- 2022-04-21 CN CN202210421873.4A patent/CN114784664A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102216870A (en) * | 2008-11-21 | 2011-10-12 | 株式会社小松制作所 | Electric lever device |
| CN208738688U (en) * | 2018-06-06 | 2019-04-12 | 中山市明阳电器有限公司 | A kind of multifunctional unit distribution system |
| CN208923700U (en) * | 2018-10-08 | 2019-05-31 | 江苏江阴华明电气设备有限公司 | A kind of intelligent low voltage drawing-out switching carbinet with high reliability plug-in unit |
| CN214795110U (en) * | 2021-04-30 | 2021-11-19 | 浙江日新电气有限公司 | High-voltage circuit breaker state on-line monitoring system |
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