CN111628414A - Crane electrical controller with emergency early warning and protection functions - Google Patents
Crane electrical controller with emergency early warning and protection functions Download PDFInfo
- Publication number
- CN111628414A CN111628414A CN202010485512.7A CN202010485512A CN111628414A CN 111628414 A CN111628414 A CN 111628414A CN 202010485512 A CN202010485512 A CN 202010485512A CN 111628414 A CN111628414 A CN 111628414A
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- cabinet body
- controller
- crane
- electrical controller
- function according
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/22—Control systems or devices for electric drives
-
- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/303—Bases or feet
-
- 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
-
- 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
- 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
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
Abstract
The invention provides an electric controller of a crane with emergency early warning and protection functions, which comprises a cabinet body, the electric controller and a turnover door, wherein an outer fixed frame is arranged on the outer side of the cabinet body, and the bottom of the cabinet body is connected to a fixed base through two groups of symmetrically arranged supporting mechanisms. According to the invention, the positioning unit and the safety interlocking switch are arranged in the electric controller and are used for positioning the position of the electric controller and improving the safety of the electric controller, the electric controller is electrically connected with the carriage display screen, the motor and the alarm, the carriage display screen is controlled by a power grid, meanwhile, the power supply unit is also arranged, a storage battery or a lithium battery is adopted, when power is suddenly cut off, the electric energy can be provided for the controller and the alarm through the power supply unit, and the alarm gives an alarm through the alarm, so that the motor is controlled, and the defect that the crane is suddenly cut off and is uncontrollably fallen is prevented.
Description
Technical Field
The invention relates to the field of electric controllers of cranes, in particular to an electric controller of a crane with emergency early warning and protection functions.
Background
The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as crown blocks, navigation cranes and cranes. The tire crane is mainly characterized in that: the traveling cab and the crane control cab are integrated into a whole and are formed by evolving a crawler crane (crawler crane), a crawler and a traveling support part of a traveling mechanism are changed into a chassis with tires, the defect that a crawler plate of the crawler crane (crawler crane) damages a road surface is overcome, and the material handling machine belongs to material handling machinery.
The bridge crane is a hoisting device which is transversely arranged above workshops, warehouses and stockyards to hoist materials. Since its two ends are seated on a tall concrete column or a metal bracket, it is shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated frames at two sides, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment. The lifting machine has the widest application range and the largest quantity.
However, the traditional crane has some defects in the use and operation process, the electric controller of the traditional crane has a complex structure and has no emergency control equipment for the motor in case of sudden power failure, so that certain potential safety hazards exist, and the electric controller of the traditional crane has some defects in the aspects of heat dissipation and shock resistance on the outer side of the cabinet body.
Disclosure of Invention
The invention aims to provide an electric controller of a crane with emergency early warning and protection, which aims to solve the technical problem.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a hoist electrical controller with emergent early warning and protection, includes the cabinet body, electrical controller and upset door, its characterized in that: an outer fixing frame is arranged on the outer side of the cabinet body, the bottom of the cabinet body is connected to a fixing base through two groups of symmetrically arranged supporting mechanisms, sealing gaskets are arranged between two sides of the inner part of the outer fixing frame and two side walls of the cabinet body, a supporting block is arranged between the upper part of the inner side of the outer fixing frame and the top of the cabinet body, a turnover door is rotatably connected to an opening position on one side of the cabinet body, and a sealing strip is arranged on the outer side edge of the turnover door;
the storage bin has been seted up to the inside of the cabinet body, the inside of the cabinet body is provided with the dust screen, the inside of the cabinet body and the opposite side that is located the dust screen are provided with electric control panel, be provided with positioning unit, programmable controller and safety interlock switch on the electric control panel, programmable controller respectively with positioning unit and safety interlock switch electric connection, electric controller electric connection is to on the crane carriage display screen.
Preferably, the inside of the storage bin is provided with a fan, the fan is driven by a driving motor, a plurality of ventilation openings are formed in one side, located on the rear side wall of the cabinet body, of the fan, and a plurality of air inlets are formed in the top of the cabinet body.
Preferably, the cross-sectional view of the air inlet is an inclined structure.
Preferably, the inside both sides of the cabinet body and the both sides that are located electrical control board all are provided with the bowl, the bowl is equidistant to be provided with a plurality of bellyings, and a plurality of bellyings adopt rubber bump to make.
Preferably, one side of the reflection cover facing the electric control board is plated with a reflection coating, and the reflection coating is a silver coating.
Preferably, the programmable controller is electrically connected to a controller inside the carriage display screen, the controller inside the carriage display screen is electrically connected to the power supply unit and the storage unit respectively, and the programmable controller and the controller inside the carriage display screen are both electrically connected to the alarm and the motor controller.
Preferably, the power supply unit is a storage battery or a lithium battery.
Preferably, the supporting mechanism includes connecting block, lower connecting block and bracing piece, the upper and lower both ends of bracing piece all are provided with the elastic plate, the inside of elastic plate all is provided with damping spring, two the elastic plate sets up the inside at last connecting block and lower connecting block respectively.
Preferably, the elastic plate is of an inverted U-shaped structure, and the upper connecting block and the lower connecting block are of concave structures.
Preferably, an elastic steel wire plate is arranged at the middle position inside the sealing gasket.
Compared with the related art, the crane electric controller with the emergency early warning and protection function provided by the invention has the following beneficial effects:
the electric controller is electrically connected with the carriage display screen, the motor and the alarm, the carriage display screen is controlled by a power grid, meanwhile, the electric controller is also provided with a power supply unit, a storage battery or a lithium battery is adopted, when power is suddenly cut off, the electric controller and the alarm can be supplied with electric energy through the power supply unit, the alarm is used for giving an alarm, the motor is controlled, the defect that the crane is uncontrollably dropped due to sudden power failure is prevented, and the emergency early warning and protection effects are achieved;
the outer fixing frame is arranged on the outer side of the cabinet body, the sealing gasket is arranged between the outer fixing frame and the cabinet body, the elastic steel wire plate is arranged in the sealing gasket, the stability and the service life of the sealing gasket can be improved by the elastic steel wire plate, the sealing gasket can buffer the pressure between the cabinet body and the outer fixing frame, and a certain protection effect is achieved on the cabinet body;
the supporting rod is arranged at the bottom of the cabinet body, the upper end and the lower end of the supporting rod are respectively provided with the elastic plate, the damping spring is arranged inside the elastic plate, the elastic plates and the damping spring are respectively arranged in the upper connecting block and the lower connecting block and are connected with the cabinet body and the fixed base, so that the cabinet body is supported, damped and buffered to a certain extent;
the fan, the ventilation opening and the air inlet are arranged in the cabinet body, the air inlet is obliquely arranged and matched with the fan, so that air entering from the air inlet can form vortex turbulent flow to enter, when the vortex turbulent flow of the air passes through the reflecting cover, the reflecting cover can be irregularly shaken and acts on the electric control board, and the electric elements on the electric control board are subjected to heat dissipation treatment;
because the plurality of convex parts are arranged on the reflecting cover and irregular vibration can be generated, wind can act on the electric element from a plurality of different directions, and the heat dissipation efficiency of the electric element is greatly increased.
Drawings
FIG. 1 is a schematic diagram of an electrical controller of a crane with emergency warning and protection according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of an electrical controller of a crane with emergency warning and protection according to the present invention;
FIG. 3 is a side cross-sectional view of a crane electrical controller with emergency warning and protection in accordance with the present invention;
FIG. 4 is a schematic view of the construction of the gasket of the present invention;
FIG. 5 is a side view of the gasket of the present invention;
FIG. 6 is a block diagram of an electrical controller of a crane with emergency warning and protection according to the present invention;
reference numerals: 1. a cabinet body; 2. an outer fixed frame; 3. a support block; 4. an electrical control board; 5. a sealing strip; 6. an electrical controller; 7. turning over the door; 8. a support mechanism; 81. an upper connecting block; 82. an elastic plate; 83. a damping spring; 84. a support bar; 85. a lower connecting block; 9. a fixed base; 10. a dust screen; 11. a fan; 12. a gasket; 121. an elastic steel wire plate; 13. a vent; 14. an air inlet; 15. a storage bin; 16. a reflector; 17. a raised portion.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, fig. 1 is a schematic structural diagram of an electrical controller of a crane with emergency warning and protection according to an embodiment of the present invention; FIG. 2 is a schematic diagram of the internal structure of an electrical controller of a crane with emergency warning and protection according to the present invention; FIG. 3 is a side cross-sectional view of a crane electrical controller with emergency warning and protection in accordance with the present invention; FIG. 4 is a schematic view of the construction of the gasket of the present invention; FIG. 5 is a side view of the gasket of the present invention; fig. 6 is a block diagram of an electrical controller of a crane with emergency warning and protection according to the present invention. In a specific implementation process, as shown in fig. 1-6, an electric controller of a crane with emergency early warning and protection comprises a cabinet body 1, an electric controller 6 and a turnover door 7, wherein an outer fixed frame 2 is arranged on the outer side of the cabinet body 1, the bottom of the cabinet body 1 is connected to a fixed base 9 through two groups of symmetrically arranged supporting mechanisms 8, sealing gaskets 12 are arranged between two sides of the inner part of the outer fixed frame 2 and two side walls of the cabinet body 1, a supporting block 3 is arranged between the upper part of the inner side of the outer fixed frame 2 and the top of the cabinet body 1, the opening position of one side of the cabinet body 1 is rotatably connected with the turnover door 7, and a sealing strip 5 is arranged on the outer side edge of the turnover door 7;
In a specific implementation process, as shown in fig. 3, a fan 11 is arranged inside the storage bin 15, the fan 11 is driven by a driving motor, a plurality of ventilation openings 13 are formed in the rear side wall of the cabinet body 1 and located at one side of the fan 11, and a plurality of air inlets 14 are formed in the top of the cabinet body 1; the cross-sectional view of the air inlet 14 is an inclined structure.
In a specific implementation process, as shown in fig. 3 and 5, a fan 11 is disposed inside the storage bin 15, the fan 11 is driven by a driving motor, a plurality of ventilation openings 13 are disposed on a rear side wall of the cabinet 1 and on one side of the fan 11, and a plurality of air inlets 14 are disposed at the top of the cabinet 1; the inside both sides of the cabinet body 1 and the both sides that are located electrical control board 4 all are provided with bowl 16, equidistant a plurality of bellyings 17 that are provided with on bowl 16, a plurality of bellyings 17 adopt rubber bump to make.
In a specific implementation, as shown in fig. 2 to 3, the side of the reflection housing 16 facing the electrical control board 4 is coated with a reflective coating, which is a silver coating.
In a specific implementation process, as shown in fig. 6, the programmable controller is electrically connected to a controller inside the carriage display screen, the controller inside the carriage display screen is electrically connected to the power supply unit and the storage unit, and both the programmable controller and the controller inside the carriage display screen are electrically connected to an alarm and a motor controller; the power supply unit is a storage battery or a lithium battery.
In a specific implementation process, as shown in fig. 2, the supporting mechanism 8 includes an upper connecting block 81, a lower connecting block 85 and a supporting rod 84, elastic plates 82 are respectively disposed at upper and lower ends of the supporting rod 84, a damping spring 83 is disposed inside each elastic plate 82, and the two elastic plates 82 are respectively disposed inside the upper connecting block 81 and the lower connecting block 85; the elastic plate 82 has an inverted U-shaped structure, and the upper connecting block 81 and the lower connecting block 85 have a concave structure.
In the specific implementation, as shown in fig. 4, an elastic wire plate 121 is disposed at an inner middle position of the gasket 12.
The working principle of the invention is as follows:
when the crane is used, because the positioning unit, the programmable controller and the safety interlocking switch are arranged in the electric controller 6, the positioning unit is used for monitoring the positions of the electric controller 6 and the crane in real time and sending information into the programmable controller, the safety interlocking switch is used for protecting the safety of the electric controller 6, signals sent into the programmable controller are sent to a display screen in a carriage of the crane after being processed and are displayed through the display screen, a user can conveniently observe the signals, when an accident occurs in the crane, the programmable controller and the controller in the carriage display screen can both give an alarm through the alarm and timely control the motor to stop working, when the electricity is cut off and the electric controller cannot work, the power supply unit adopts a storage battery or a lithium battery to continuously supply power for the controller in the carriage display screen and timely control the motor to work through the controller, and through the timely alarm processing of alarm, prevent that the sudden power failure from causing the uncontrolled potential safety hazard that causes of hoist to appear, the electric energy of user's accessible storage in time closes hoist work, has guaranteed the security of hoist greatly to play the effect of emergent early warning and protection.
In the using process, the outer fixed frame 2 is arranged on the outer side of the cabinet body 1, the sealing gasket 12 is arranged between the outer fixed frame 2 and the cabinet body 1, the elastic steel wire plate 121 is arranged inside the sealing gasket 12, so that the sealing gasket 12 can buffer the acting force generated by the cabinet body 1 and play a certain protection role for the cabinet body 1, the fan 11 is arranged inside the cabinet body 1, the air inlet 14 is arranged in an inclined shape, the air entering from the air inlet 14 enters one side of the fan 11 and can enter the cabinet body 1 in a vortex manner through the acting force of the fan 11, then when passing through the reflecting cover 16, the air acts on the reflecting cover 16 at the moment, the reflecting cover can generate irregular vibration, then the wind acts on the electric control board in a multi-angle manner, further, the heat dissipation treatment is carried out on the electric elements on the electric control board, and after the heat dissipation treatment, and finally, the air is discharged through the vent 13, so that the air is circularly processed, and the heat dissipation effect and the heat dissipation efficiency of the electrical equipment are improved.
In the use process, the inside of the cabinet body 1 is provided with the supporting mechanism 8, the upper and lower two of the bracing piece 84 are connected with the elastic plate 82, and the inside of the elastic plate 82 is provided with the damping spring 83, so the damping spring and the elastic plate 82 can play the effect of secondary damping to the cabinet body 1, and the setting of the bracing piece 84 plays the effect of supporting simultaneously, and then guarantees the anti-seismic performance of the cabinet body 1.
The embodiment has the following beneficial effects:
(1) the electric controller 6 is electrically connected with the carriage display screen, the motor and the alarm, the carriage display screen is controlled by a power grid, meanwhile, the electric controller is also provided with a power supply unit, a storage battery or a lithium battery is adopted, when power is suddenly cut off, the electric controller and the alarm can be supplied with electric energy through the power supply unit, the alarm is used for giving an alarm, the motor is controlled, and the defect that the crane is suddenly cut off and is uncontrollably descended is avoided;
(2) the outer fixing frame 2 is arranged on the outer side of the cabinet body, the sealing gasket 12 is arranged between the outer fixing frame 2 and the cabinet body 1, the elastic steel wire plate 121 is arranged inside the sealing gasket 12, the elastic steel wire plate 121 can improve the stability and the practical service life of the sealing gasket 12, and the sealing gasket 12 can buffer the pressure between the cabinet body 1 and the outer fixing frame 2, so that the cabinet body is protected to a certain extent;
(3) the bottom of the cabinet body 1 is provided with the support rod 84, the upper end and the lower end of the support rod 84 are both provided with the elastic plates 82, the elastic plates 82 are internally provided with the damping springs 83, and the elastic plates 82 and the damping springs 83 are both arranged in the upper connecting block 81 and the lower connecting block 85 and are connected with the cabinet body 1 and the fixed base 9, so that the cabinet body 1 is supported, damped and buffered to a certain extent;
(4) the fan 11, the ventilation opening 13 and the air inlet 14 are arranged in the cabinet body 1, the air inlet 14 is arranged in an inclined manner and is matched with the fan 11, so that air entering from the air inlet 14 can form vortex disturbed flow to enter, when the air vortex disturbed flow passes through the reflecting cover 16, the reflecting cover 16 can be irregularly shaken and acts on the electric control board 4, and heat dissipation treatment is carried out on electric elements on the electric control board 4;
(5) because the plurality of convex parts 17 are arranged on the reflecting cover 16 and irregular shaking can be generated, wind can act on the electric element from a plurality of different directions, and the heat dissipation efficiency of the electric element is greatly increased.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a hoist electrical controller with emergent early warning and protection, includes cabinet body (1), electrical controller (6) and upset door (7), its characterized in that: an outer fixing frame (2) is arranged on the outer side of the cabinet body (1), the bottom of the cabinet body (1) is connected to a fixing base (9) through two groups of symmetrically arranged supporting mechanisms (8), sealing gaskets (12) are arranged between two sides of the inner part of the outer fixing frame (2) and two side walls of the cabinet body (1), a supporting block (3) is arranged between the upper part of the inner side of the outer fixing frame (2) and the top of the cabinet body (1), a turnover door (7) is rotatably connected to an opening position on one side of the cabinet body (1), and a sealing strip (5) is arranged on the outer side edge of the turnover door (7);
storage compartment (15) have been seted up to the inside of the cabinet body (1), the inside of the cabinet body (1) is provided with dust screen (10), the inside of the cabinet body (1) and the opposite side that is located dust screen (10) are provided with electrical control board (4), be provided with positioning unit, programmable controller and safety interlock switch on electrical control board (4), programmable controller respectively with positioning unit and safety interlock switch electric connection, electrical controller electric connection is to on the hoist carriage display screen.
2. The crane electrical controller with emergency warning and protection function according to claim 1, wherein: the inside of storage compartment (15) is provided with fan (11), fan (11) are through the driving motor drive, just be located one side of fan (11) on the rear side wall of the cabinet body (1) and seted up a plurality of vents (13), a plurality of air intakes (14) have been seted up at the top of the cabinet body (1).
3. The crane electrical controller with emergency warning and protection function according to claim 2, wherein: the cross section of the air inlet (14) is of an inclined structure.
4. The crane electrical controller with emergency warning and protection function according to claim 2, wherein: the inside both sides of the cabinet body (1) and the both sides that are located electrical control board (4) all are provided with bowl (16), equidistant a plurality of bellying (17) that are provided with on bowl (16), a plurality of bellying (17) adopt rubber bump to make.
5. The crane electrical controller with emergency warning and protection function according to claim 4, wherein: one surface of the reflection cover (16) facing the electric control board (4) is plated with a reflection coating, and the reflection coating is a silver coating.
6. The crane electrical controller with emergency warning and protection function according to claim 1, wherein: the programmable controller is electrically connected to a controller inside the carriage display screen, the controller inside the carriage display screen is electrically connected to the power supply unit and the storage unit respectively, and the programmable controller and the controller inside the carriage display screen are electrically connected to the alarm and the motor controller respectively.
7. The crane electrical controller with emergency warning and protection function according to claim 6, wherein: the power supply unit is a storage battery or a lithium battery.
8. The crane electrical controller with emergency warning and protection function according to claim 1, wherein: supporting mechanism (8) include connecting block (81), lower connecting block (85) and bracing piece (84), the upper and lower both ends of bracing piece (84) all are provided with elastic plate (82), the inside of elastic plate (82) all is provided with damping spring (83), two elastic plate (82) set up the inside at last connecting block (81) and lower connecting block (85) respectively.
9. The crane electrical controller with emergency warning and protection function according to claim 8, wherein: the elastic plate (82) is of an inverted U-shaped structure, and the upper connecting block (81) and the lower connecting block (85) are of concave structures.
10. The crane electrical controller with emergency warning and protection function according to claim 1, wherein: an elastic steel wire plate (121) is arranged in the middle of the inner part of the sealing gasket (12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020103686329 | 2020-05-01 | ||
| CN202010368632 | 2020-05-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111628414A true CN111628414A (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010485512.7A Pending CN111628414A (en) | 2020-05-01 | 2020-06-01 | Crane electrical controller with emergency early warning and protection functions |
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| CN (1) | CN111628414A (en) |
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| CN201567143U (en) * | 2009-12-21 | 2010-09-01 | 岳阳东方雷神标准电器有限公司 | Wide and heavy plate lifting electromagnet |
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2020
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| CN201567143U (en) * | 2009-12-21 | 2010-09-01 | 岳阳东方雷神标准电器有限公司 | Wide and heavy plate lifting electromagnet |
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| CN108695697A (en) * | 2018-05-14 | 2018-10-23 | 滁州市立坤电器设备有限公司 | A kind of protection mechanism of electrical cabinet |
| CN208157967U (en) * | 2018-05-29 | 2018-11-27 | 江苏伟纳电气有限公司 | A kind of radiator structure of box-type substation |
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Application publication date: 20200904 |