CN111463748A - Crane and lightning protection method for crane - Google Patents
Crane and lightning protection method for crane Download PDFInfo
- Publication number
- CN111463748A CN111463748A CN202010394070.5A CN202010394070A CN111463748A CN 111463748 A CN111463748 A CN 111463748A CN 202010394070 A CN202010394070 A CN 202010394070A CN 111463748 A CN111463748 A CN 111463748A
- Authority
- CN
- China
- Prior art keywords
- controller
- crane
- relay
- lightning protection
- electronic component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000004888 barrier function Effects 0.000 claims description 14
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 17
- 230000008054 signal transmission Effects 0.000 description 15
- 230000005693 optoelectronics Effects 0.000 description 14
- 230000001012 protector Effects 0.000 description 8
- 125000006850 spacer group Chemical group 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
- H02H3/22—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage of short duration, e.g. lightning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention provides a crane and a crane lightning protection method, and relates to the technical field of cranes. The crane comprises a controller, a lightning protection isolating piece and an electronic element, wherein the electronic element is connected with the controller, and the lightning protection isolating piece is arranged between the controller and the electronic element and used for cutting off the electric connection between the controller and the electronic element so as to prevent the controller and the electronic element from being struck by lightning. This hoist is through setting up the lightning protection separator, and safe and reliable can prevent effectively that the hoist from suffering the thunderbolt when the field, reduces unnecessary economic loss. According to the lightning protection method for the crane, after the crane is powered off, the electric connection between the controller and the electronic element is automatically cut off, and lightning impact is prevented.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to a crane and a crane lightning protection method.
Background
At present, the lightning protection technology of the sensor and the controller of the crane is mainly realized by adopting a Surge Protector (SPD) mode. A surge protector, also called a lightning protector, is an electronic device for providing safety protection for various electronic equipment, instruments and meters and communication lines. When the peak current or the voltage is suddenly generated in the electric loop or the communication line due to the external interference, the surge protector can conduct and shunt in a very short time, so that the damage of the surge to other equipment in the loop is avoided.
Although surge protector can protect indirect thunder and direct thunder influence or other instantaneous overvoltage surges, the protection voltage level is limited, if the complete machine receives direct lightning, the controller probably can be punctured and damaged, and the SPD surge protector need be changed after damaging and just can recover the system, influences engineering efficiency.
Disclosure of Invention
The object of the invention includes, for example, providing a crane having a good lightning protection function, avoiding lightning strikes, and improving the safety and reliability of the crane.
The object of the present invention is also to provide a lightning protection method for a crane, for example, which can automatically cut off the electrical connection between the controller and the electronic component to prevent the controller and the electronic component from being struck by lightning, thereby improving the safety and the working efficiency.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment of the present invention provides a crane, including a controller, a lightning protection isolator, and an electronic component, where the electronic component is connected to the controller, and the lightning protection isolator is disposed between the controller and the electronic component and is used to cut off an electrical connection between the controller and the electronic component to prevent lightning strike on the controller and the electronic component.
In an alternative embodiment, the lightning protection barrier comprises a relay, the crane further comprises an ignition lock, the relay is arranged between the controller and the electronic element, and the relay is respectively electrically connected with the controller and the electronic element; the relay is electrically connected with the power-on gear of the ignition lock.
In an alternative embodiment, the relay comprises a coil, which is electrically connected to the current supply rail of the ignition lock.
In an alternative embodiment, the relay further comprises a common terminal contact electrically connected to the electronic component and a normally open contact electrically connected to the controller.
In an alternative embodiment, the controller includes a first connection pin, and the normally open contact is electrically connected to the first connection pin.
In an alternative embodiment, the electronic component is a sensor, the electronic component includes a second connection pin, and the common contact is electrically connected to the second connection pin.
In an alternative embodiment, the relay is grounded.
In an optional embodiment, the lightning protection isolator includes an optoelectronic isolator, and the optoelectronic isolator is disposed between the controller and the electronic component and is respectively connected to the controller and the electronic component.
In an alternative embodiment, the lightning protection isolator includes a relay and an optical isolator, the relay and the optical isolator are connected in series, and the relay and the optical isolator are disposed between the controller and the electronic component.
In a second aspect, an embodiment of the present invention provides a crane lightning protection method, where the crane includes a controller, a lightning protection isolator, and an electronic component, where the electronic component is connected to the controller, and the lightning protection isolator is disposed between the controller and the electronic component and is used to cut off an electrical connection between the controller and the electronic component to prevent lightning strike on the controller and the electronic component. The lightning protection method for the crane comprises the following steps:
the ignition lock of the crane is electrified, the lightning protection isolating piece is electrified, and the controller is communicated with the electronic element;
the ignition lock of the crane is powered off, and the lightning protection isolating piece automatically cuts off the electric connection between the controller and the electronic element so as to prevent the controller and the electronic element from being struck by lightning.
In an alternative embodiment, the lightning protection barrier comprises a relay and an opto-isolator;
when the crane is in a working state, the photoelectric isolator cuts off the electric connection between the controller and the electronic element;
and when the crane is in a non-working state, the relay automatically cuts off the electric connection between the controller and the electronic element.
The crane and the lightning protection method for the crane provided by the embodiment of the invention have the beneficial effects that:
according to the crane provided by the embodiment of the invention, the lightning protection isolating piece is arranged between the controller and the electronic element and is used for automatically cutting off the electric connection between the controller and the electronic element, so that the crane is safe and reliable, the crane can be effectively prevented from being struck by lightning in the field, and unnecessary economic loss is reduced.
According to the lightning protection method for the crane, provided by the embodiment of the invention, after the crane is powered off, the electric connection between the controller and the electronic element is automatically cut off, so that lightning stroke is prevented, and the safety and the operation efficiency of the crane are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a lightning protection principle of a crane according to a first embodiment of the invention;
fig. 2 is a schematic view of lightning protection control of a relay in a crane according to a first embodiment of the present invention;
fig. 3 is a schematic circuit connection diagram of a relay of the crane according to the first embodiment of the present invention;
FIG. 4 is a schematic view illustrating a lightning protection control principle of a crane according to a second embodiment of the present invention;
fig. 5 is a schematic view of a lightning protection control principle of a crane according to a third embodiment of the invention.
Icon: 100-a crane; 110-a controller; 120-an electronic component; 121-a sensor; 130-a lightning protection barrier; 131-a relay; 133-a photovoltaic isolator; 140-ignition lock.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
At present, the lightning protection technology of electronic devices such as sensors and controllers of cranes is mainly implemented by using Surge Protection Devices (SPDs). Although surge protector can protect indirect thunder and direct thunder influence or other instantaneous overvoltage surges, but the protection voltage level is limited, if the complete machine receives direct lightning, the controller probably can be punctured and damaged, need change after SPD surge protector damages and just can recover the system, seriously influences engineering efficiency, causes economic loss.
In order to overcome the defects in the prior art, the embodiment of the invention provides the crane 100, and the lightning protection isolating piece 130 is arranged, so that the crane 100 has a good lightning protection function, avoids lightning impact, and improves the safety and reliability of the crane 100.
First embodiment
Fig. 1 is a schematic view of a lightning protection principle of a crane 100 according to a first embodiment of the present invention, and please refer to fig. 1.
The embodiment provides a crane 100, which comprises a controller 110, a lightning protection spacer 130 and an electronic component 120, wherein the electronic component 120 is connected with the controller 110, and the lightning protection spacer 130 is arranged between the controller 110 and the electronic component 120 and is used for cutting off the electrical connection between the controller 110 and the electronic component 120 so as to prevent the controller 110 and the electronic component 120 from being struck by lightning. Through setting up lightning protection separator 130, can automatic cutout controller 110 and the electric connection between electronic component 120, no matter voltage class, all can play reliable lightning protection effect, safe and reliable has improved hoist 100's security, avoids causing unnecessary economic loss.
It should be noted that the electronic component 120 in the crane 100 includes various sensors 121, such as various signal acquisition, transmission or processing components, such as a current sensor, a voltage sensor, a data acquisition sensor, and the like.
Fig. 2 is a schematic view of lightning protection control of the relay 131 in the crane 100 according to the first embodiment of the present invention, and fig. 3 is a schematic view of circuit connection of the relay 131 in the crane 100 according to the first embodiment of the present invention, please refer to fig. 2 and fig. 3.
In this embodiment, the lightning protection isolator 130 includes a relay 131, the crane 100 further includes an ignition lock 140, the relay 131 is disposed between the controller 110 and the electronic component 120, and the relay 131 is electrically connected to the controller 110 and the electronic component 120 respectively; the relay 131 is electrically connected to the power-on gear of the ignition lock 140.
Further, the relay 131 includes a coil electrically connected to the power-on shield of the ignition lock 140. Through the connection of the relay 131 and the power-on stop of the ignition lock 140 of the crane 100, when the crane 100 is ignited, the coil of the relay 131 is powered on, so that the electrical connection between the controller 110 and the electronic element 120 and the signal transmission are realized, namely, the controller 110 is conducted with the electronic element 120. When the crane 100 is powered off, namely the ignition lock 140 is turned off, and at the moment, the coil of the relay 131 loses power, the circuit between the controller 110 and each electronic element 120 is disconnected, so that the lightning protection effect is achieved, and the controller 110 and the electronic elements 120 can be protected from lightning impact and cannot be damaged. It is easily understood that the coil of the relay 131 is electrically connected to the ignition lock 140 at one end and grounded at the other end.
It should be noted that in this embodiment, the number of the relays 131 may be one or more, and the number of the relays 131 may be determined according to the number of the external electronic components 120. For example, if the electronic component 120 includes the first sensor 121, the second sensors 121 and … …, and the nth sensor 121, where n is a natural number greater than or equal to 1, n relays 131 may be provided, each relay 131 is connected to one sensor 121, and the plurality of relays 131 are respectively connected to the controller 110.
Optionally, the relay 131 further comprises a common terminal contact and a normally open contact, wherein the common terminal contact of the relay 131 is electrically connected with the electronic element 120, and the normally open contact is electrically connected with the controller 110. For example, in the plurality of relays 131, the common contact of the first relay K1 is connected to the first sensor 121, and the normally open contact of the first relay K1 is connected to the input terminal of the controller 110; a common end contact of the second relay K2 is connected with the second sensor 121, and a normally open contact of the second relay K2 is connected with an input end of the controller 110; the common contact of the nth relay Kn is connected to the nth sensor 121, and the normally open contact of the nth relay Kn is connected to the input terminal of the controller 110. Further, the controller 110 includes a plurality of first connection pins, and the normally open contact of each relay 131 is electrically connected to one of the first connection pins to implement signal transmission. The electronic component 120 is a plurality of sensors 121, the electronic component 120 includes a second connection pin, and the common contact is electrically connected to the second connection pin to realize signal transmission.
When the ignition lock 140 of the crane 100 is ignited, namely the power supply is turned on, the coil of the relay 131 is electrified, the normally open contact is closed, and at the moment, each sensor 121 is respectively communicated with the first connecting pin of the controller 110 to realize signal transmission; when the crane 100 is powered off, the ignition lock 140 is closed, the coil of the relay 131 is not electrified, the normally open contact is opened, and the lines between the sensors 121 and the controller 110 are disconnected. After the circuit between the controller 110 and the sensor 121 is disconnected, the lightning can be prevented from being impacted, and a lightning protection function can be achieved, so that the safety of the crane 100 is improved.
In this embodiment, the controller 110 and the relay 131 are both installed in the power distribution cabinet, and each sensor 121 is introduced into the power distribution cabinet from the platform or the arm support, so that circuit conduction and signal transmission between the sensor 121 and the controller 110 are realized. It will be readily appreciated that the connection between the electronic component 120 and the controller 110 is used to enable the transmission of signals including, but not limited to, switching value signals and analog value signals.
The crane 100 according to the first embodiment of the present invention has the following lightning protection principle:
the relay 131 is electrically connected with the ignition lock 140 of the crane 100, the relay 131 is arranged between the controller 110 and the electronic element 120, the common end contact of each relay 131 is respectively connected with one electronic element 120, and the normally open contacts of the relays 131 are all connected with the input end of the controller 110.
When the ignition lock 140 of the crane 100 is ignited, namely the power supply is turned on, the coil of the relay 131 is electrified, the normally open contact is closed, and at the moment, each sensor 121 is respectively communicated with the first connecting pin of the controller 110 to realize signal transmission; when the crane 100 is powered off, the ignition lock 140 is turned off, the coil of the relay 131 is powered off, and the sensors 121 and the controller 110 are disconnected. After the circuit between the controller 110 and the sensor 121 is disconnected, the lightning can be prevented from being impacted, and a lightning protection function can be achieved, so that the safety of the crane 100 is improved.
Second embodiment
Fig. 4 is a schematic view of a lightning protection control principle of the crane 100 according to a second embodiment of the invention, and fig. 4 is shown.
In this embodiment, the crane 100 includes a controller 110, a lightning protection spacer 130 and an electronic component 120, wherein the electronic component 120 is connected to the controller 110, and the lightning protection spacer 130 is disposed between the controller 110 and the electronic component 120 and is used for cutting off an electrical connection between the controller 110 and the electronic component 120 to prevent the controller 110 and the electronic component 120 from being struck by lightning. Further, the lightning protection isolator 130 includes an optical isolator 133, and the optical isolator 133 is disposed between the controller 110 and the electronic component 120 and is respectively connected to the controller 110 and the electronic component 120. The number of the optoelectronic isolators 133 is one or more, the number of the optoelectronic isolators 133 may be determined according to the number of the electronic components 120, and one end of each optoelectronic isolator 133 is connected to one electronic component 120, and the other end is connected to an input end of the controller 110. The opto-isolator 133 may enable signal communication between the various electronic components 120 and the controller 110. The electronic components 120 include, but are not limited to, various types of sensors 121, and each sensor 121 is configured to transmit various types of switching value signals and/or analog value signals to the controller 110.
The photo isolator 133, also called a photo coupler, transmits an electrical signal using light as a medium. Since the signal transmission mode of the optoelectronic isolator 133 is the optical signal transmission mode, the electrical signal sent by the sensor 121 is converted into the optical signal in the optoelectronic isolator 133, and the optoelectronic isolator 133 converts the optical signal into the electrical signal and inputs the electrical signal to the controller 110. Since no circuit is conducted inside the optoelectronic isolator 133, the optoelectronic isolator 133 is disposed between the controller 110 and each sensor 121, which not only can realize signal transmission between the sensor 121 and the controller 110, but also can realize circuit isolation between the sensor 121 and the controller 110, so that the controller 110 and the sensor 121 can be protected from lightning impact, thereby achieving lightning protection.
The controller 110 and the optoelectronic isolator 133 are both installed in the power distribution cabinet, and each sensor 121 is introduced into the power distribution cabinet from the platform or the arm support, so that signal transmission between each sensor 121 and the controller 110 is realized. The photoelectric isolator 133 is used as the lightning protection isolator 130, so that the crane 100 has a good lightning protection function no matter whether the power supply of the crane 100 is turned on, namely, no matter whether the crane 100 is in a working state or a non-working state, the controller 110 and the sensor 121 can be prevented from being impacted by lightning, and the safety and the stability of the crane 100 are improved.
The contents of other parts not mentioned in this embodiment are similar to those described in the first embodiment, and are not described again here.
Third embodiment
Fig. 5 is a schematic view of a lightning protection control principle of the crane 100 according to a third embodiment of the invention, and fig. 5 is shown.
The crane 100 provided in this embodiment includes a controller 110, a lightning protection spacer 130, and an electronic component 120, wherein the electronic component 120 is connected to the controller 110, and the lightning protection spacer 130 is disposed between the controller 110 and the electronic component 120 and is used for cutting off an electrical connection between the controller 110 and the electronic component 120 to prevent the controller 110 and the electronic component 120 from being struck by lightning. Further, the lightning protection isolator 130 includes a relay 131 and an optical isolator 133, the relay 131 and the optical isolator 133 are connected in series, and both the relay 131 and the optical isolator 133 are disposed between the controller 110 and the electronic component 120. Optionally, the electronic component 120 comprises at least one sensor 121, the number of relays 131 is equal to the number of sensors 121, the number of opto-isolators 133 is equal to the number of sensors 121, and each relay 131 is connected in series with one opto-isolator 133. The relay 131 is electrically connected with the power-on gear of the ignition lock 140 of the crane 100, the common end contact of the relay 131 is connected with the sensor 121, and the normally open contact is connected with the input end of the controller 110. The opto-isolator 133 has one end connected to the electronic component 120 and the other end connected to the input of the controller 110.
Since the relay 131 and the opto-isolator 133 are connected in series, the position sequence of the relay 131 and the opto-isolator 133 is not limited, and in fig. 5, the relay 131 is disposed near the controller 110, and the opto-isolator 133 is disposed near the sensor 121, that is, the opto-isolator 133 is disposed between the relay 131 and the electronic component 120. In other alternative embodiments, the relay 131 may be disposed close to the sensor 121, and the optical isolator 133 may be disposed close to the controller 110, that is, the optical isolator 133 is disposed between the relay 131 and the controller 110, which is not limited herein. The relay 131, the controller 110 and the photoelectric isolator 133 are all installed in the power distribution cabinet, and each sensor 121 is introduced into the power distribution cabinet from a platform or an arm support, so that circuit conduction and signal transmission between the sensor 121 and the controller 110 are realized.
In the crane 100 provided by the embodiment, when the ignition lock 140 of the crane 100 is energized, the coil of the relay 131 is energized, and the circuits between the controller 110 and the sensors 121 are conducted, so that the electrical connection and the signal transmission are realized. When the crane 100 is in a working state, the lightning protection of the controller 110 and the sensor 121 is realized mainly by the optoelectronic isolator 133.
When the ignition lock 140 of the crane 100 is opened and closed, that is, the crane 100 is powered off, the coil of the relay 131 is not powered on, the circuit between the controller 110 and the sensor 121 is disconnected, and at this time, the relay 131 plays a role in lightning protection. That is, when the crane 100 is in a non-operating state, the relay 131 is mainly used to protect the controller 110 and the sensor 121 from lightning. Certainly, when the crane 100 is in a non-working state, the optoelectronic isolator 133 also has a lightning protection function, so that double protection can be realized, and the crane is safer and more reliable.
The contents of other parts not mentioned in this embodiment are similar to those described in the first and second embodiments, and are not described again here.
The embodiment of the invention also provides a lightning protection method for the crane 100, the crane 100 comprises a controller 110, a lightning protection isolator 130 and an electronic element 120, the electronic element 120 is connected with the controller 110, and the lightning protection isolator 130 is arranged between the controller 110 and the electronic element 120 and is used for cutting off the electrical connection between the controller 110 and the electronic element 120 so as to prevent the controller 110 and the electronic element 120 from being struck by lightning. The lightning protection method for the crane 100 comprises the following steps: the electrical connection between the controller 110 and the electronic components 120 is automatically severed and the electronic components 120 include, but are not limited to, one or more sensors 121.
Further, when the lightning protection barrier 130 employs the relay 131, the relay 131 is electrically connected with the ignition lock 140 of the crane 100. The ignition lock 140 of the crane 100 is electrified, the coil of the relay 131 is electrified, and the controller 110 is conducted with the electronic element 120 to realize signal transmission; when the ignition lock 140 of the crane 100 is powered off, the coil of the relay 131 is not powered on, the normally open contact of the relay 131 is disconnected with the input end of the controller 110, and the electrical connection between the controller 110 and the electronic element 120 is automatically cut off, so that the controller 110 and the electronic element 120 are prevented from being impacted by lightning, and a lightning protection effect is achieved. The relay 131 is used for lightning protection of the controller 110 and the sensor 121 when the crane 100 is in a non-operating state.
When the lightning protection isolator 133 is used as the lightning protection isolator 130, the lightning protection isolator 133 can achieve signal transmission between the controller 110 and the sensor 121 and can also achieve circuit isolation between the controller 110 and the sensor 121, and can protect the controller 110 and the sensor 121 from lightning both in a working state and a non-working state of the crane 100.
When the lightning protection isolator 130 adopts the relay 131 and the optical isolator 133 at the same time, one relay 131 is connected with one optical isolator 133 in series, the relay 131 and the optical isolator 133 are both arranged between the controller 110 and the sensor 121, and the relay 131 is electrically connected with the ignition lock 140 of the crane 100 in a power-on blocking manner. When the crane 100 is in the working state, the optoelectronic isolator 133 cuts off the electrical connection between the controller 110 and the electronic component 120; when the crane 100 is in a non-working state, the relay 131 automatically cuts off the electrical connection between the controller 110 and the electronic component 120, and meanwhile, the optical isolator 133 also plays a role in circuit isolation, so that double protection is realized.
In summary, the embodiment of the present invention provides a crane 100 and a lightning protection method for the crane 100, and has the following beneficial effects:
the crane 100 can realize lightning protection of the crane 100 in a non-working state by arranging the lightning protection barrier 130 between the controller 110 and the electronic component 120, when the lightning protection barrier 130 adopts the relay 131 alone. When the lightning protection isolator 133 is adopted alone or the lightning protection isolator 133 and the relay 131 are adopted simultaneously by the lightning protection isolator 130, the crane 100 can realize lightning protection in both a working state and a non-working state, and the lightning protection device is simple in principle, convenient to control, strong in operability and high in safety. The lightning protection method for the crane 100 greatly improves the stability and the safety of the operation of the crane 100, prevents the sensor 121 and the controller 110 from being subjected to lightning impact, and reduces unnecessary economic loss.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A crane, comprising a controller (110), a lightning protection barrier (130) and an electronic component (120), wherein the electronic component (120) is connected to the controller (110), and wherein the lightning protection barrier (130) is arranged between the controller (110) and the electronic component (120) for breaking an electrical connection between the controller (110) and the electronic component (120) to prevent lightning strikes on the controller (110) and the electronic component (120).
2. The crane according to claim 1, wherein the lightning protection barrier (130) comprises a relay (131), the crane (100) further comprises an ignition lock (140), the relay (131) is arranged between the controller (110) and the electronic component (120), and the relay (131) is electrically connected with the controller (110) and the electronic component (120), respectively; the relay (131) is electrically connected to the power supply terminal of the ignition lock (140).
3. A crane according to claim 2, characterized in that the relay (131) comprises a coil which is electrically connected with the energizing block of the ignition lock (140).
4. The crane according to claim 3, wherein the relay (131) further comprises a common terminal contact electrically connected to the electronic component (120) and a normally open contact electrically connected to the controller (110).
5. The crane according to claim 4, wherein the controller (110) comprises a first connection pin, and the normally open contact is electrically connected with the first connection pin.
6. A crane according to claim 4, wherein the electronic component (120) is a sensor (121), the electronic component (120) comprising a second connection pin, the common terminal contact being electrically connected to the second connection pin.
7. The crane according to claim 1, wherein the lightning protection barrier (130) comprises a photo isolator (133), the photo isolator (133) being arranged between the controller (110) and the electronic component (120) and being connected to the controller (110) and the electronic component (120), respectively.
8. The crane according to claim 1, wherein the lightning protection barrier (130) comprises a relay (131) and an opto-isolator (133), the relay (131) and the opto-isolator (133) being connected in series, and the relay (131) and the opto-isolator (133) being both provided between the controller (110) and the electronic component (120).
9. A lightning protection method for a crane is characterized by comprising the following steps:
the ignition lock (140) of the crane (100) is electrified, the lightning protection isolating piece (130) is electrified, and the controller (110) is communicated with the electronic element (120);
the ignition lock (140) of the crane (100) is de-energized and the lightning protection barrier (130) automatically breaks the electrical connection between the controller (110) and the electronic component (120) to prevent lightning strikes to the controller (110) and the electronic component (120).
10. The crane lightning protection method according to claim 9, wherein the lightning protection barrier (130) comprises a relay (131) and an opto-electric barrier (133);
the photoelectric isolator (133) cuts off the electric connection between the controller (110) and the electronic element (120) when the crane (100) is in a working state;
the relay (131) automatically disconnects the electrical connection between the controller (110) and the electronic component (120) when the crane (100) is in a non-operating state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010394070.5A CN111463748A (en) | 2020-05-11 | 2020-05-11 | Crane and lightning protection method for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010394070.5A CN111463748A (en) | 2020-05-11 | 2020-05-11 | Crane and lightning protection method for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111463748A true CN111463748A (en) | 2020-07-28 |
Family
ID=71678249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010394070.5A Pending CN111463748A (en) | 2020-05-11 | 2020-05-11 | Crane and lightning protection method for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111463748A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210282U (en) * | 1986-12-06 | 1987-11-18 | 谭乐顺 | Rotation central controller of hydraulic crane truck |
| JP2002046436A (en) * | 2000-08-02 | 2002-02-12 | Kobelco Contstruction Machinery Ltd | Working machine for track |
| CN2792857Y (en) * | 2005-05-22 | 2006-07-05 | 轩利成 | Power-off protecting circuit of automotive vehicle |
| CN101138971A (en) * | 2007-09-11 | 2008-03-12 | 力帆实业(集团)有限公司 | Car lamp control switch |
| CN202815566U (en) * | 2012-09-28 | 2013-03-20 | 成都千嘉科技有限公司 | Isolated intelligent safety barrier |
| CN103066558A (en) * | 2012-12-07 | 2013-04-24 | 张恩迪 | Lightning protection isolator of internet of things |
| CN203135396U (en) * | 2013-03-26 | 2013-08-14 | 张恩迪 | A cell phone remote lightning protection isolator |
| CN105450089A (en) * | 2016-01-26 | 2016-03-30 | 河南正大起重设备有限公司 | Soft-starting intelligent module for crane |
| CN205377101U (en) * | 2015-12-03 | 2016-07-06 | 江苏国艾电气有限公司 | Lightning protection high tension switchgear takes precautions against earthquakes |
| CN106298366A (en) * | 2016-08-19 | 2017-01-04 | 杭州聚彤节能科技有限公司 | A kind of anti-lightning strike electromagnetic relay |
| CN205986103U (en) * | 2016-08-11 | 2017-02-22 | 杭州聚彤节能科技有限公司 | Relay of lightning protection electricity |
| CN206517528U (en) * | 2017-02-21 | 2017-09-22 | 江苏仁程电子科技有限公司 | Video monitoring system for high-building construction |
| CN107947554A (en) * | 2017-12-26 | 2018-04-20 | 防灾科技学院 | Lightning protection intelligent power and lightning protection intelligent power system |
-
2020
- 2020-05-11 CN CN202010394070.5A patent/CN111463748A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210282U (en) * | 1986-12-06 | 1987-11-18 | 谭乐顺 | Rotation central controller of hydraulic crane truck |
| JP2002046436A (en) * | 2000-08-02 | 2002-02-12 | Kobelco Contstruction Machinery Ltd | Working machine for track |
| CN2792857Y (en) * | 2005-05-22 | 2006-07-05 | 轩利成 | Power-off protecting circuit of automotive vehicle |
| CN101138971A (en) * | 2007-09-11 | 2008-03-12 | 力帆实业(集团)有限公司 | Car lamp control switch |
| CN202815566U (en) * | 2012-09-28 | 2013-03-20 | 成都千嘉科技有限公司 | Isolated intelligent safety barrier |
| CN103066558A (en) * | 2012-12-07 | 2013-04-24 | 张恩迪 | Lightning protection isolator of internet of things |
| CN203135396U (en) * | 2013-03-26 | 2013-08-14 | 张恩迪 | A cell phone remote lightning protection isolator |
| CN205377101U (en) * | 2015-12-03 | 2016-07-06 | 江苏国艾电气有限公司 | Lightning protection high tension switchgear takes precautions against earthquakes |
| CN105450089A (en) * | 2016-01-26 | 2016-03-30 | 河南正大起重设备有限公司 | Soft-starting intelligent module for crane |
| CN205986103U (en) * | 2016-08-11 | 2017-02-22 | 杭州聚彤节能科技有限公司 | Relay of lightning protection electricity |
| CN106298366A (en) * | 2016-08-19 | 2017-01-04 | 杭州聚彤节能科技有限公司 | A kind of anti-lightning strike electromagnetic relay |
| CN206517528U (en) * | 2017-02-21 | 2017-09-22 | 江苏仁程电子科技有限公司 | Video monitoring system for high-building construction |
| CN107947554A (en) * | 2017-12-26 | 2018-04-20 | 防灾科技学院 | Lightning protection intelligent power and lightning protection intelligent power system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0948111B1 (en) | Fault protection arrangements and methods for electric power distribution systems | |
| US7023305B2 (en) | Control and protection module of a switch device | |
| JP6688804B2 (en) | DC circuit breaker and disconnector | |
| CN102263645A (en) | Power management method and power management system for communication equipment | |
| CN205427552U (en) | High -voltage switch intelligent control ware | |
| CN102306928B (en) | Mining fiber longitudinal override trip protection device and method thereof | |
| CN111463748A (en) | Crane and lightning protection method for crane | |
| US6061216A (en) | Lightning breaker | |
| CN104810792A (en) | Electric leakage protection device and control method thereof | |
| KR101779710B1 (en) | Arc protection system | |
| CN216699500U (en) | Intelligent safety power consumption protection device | |
| CN216215916U (en) | Power consumption protector for three-phase balance immersion electric shock prevention | |
| CN214755500U (en) | Protection system for neutral point ungrounded power system | |
| CN109802410A (en) | A kind of zero line break protection device and method | |
| CN210778468U (en) | Circuit breaker testing device and circuit breaker with same | |
| KR101541208B1 (en) | Control module with connection devices for connection to connection terminals of a load feeder and load feeder | |
| CN209896772U (en) | Power control equipment capable of realizing self-locking in emergency power-off | |
| CN211046469U (en) | Arc light rapid protection device | |
| KR20180123334A (en) | Current monitoring board and control method thereof | |
| CN210201465U (en) | Overcurrent protection device for direct current system | |
| CN208539550U (en) | A kind of control device of contactor for preventing adhesion | |
| CN201956148U (en) | Lightning protection device for power supply | |
| CN108493911B (en) | Pressure ring network protection method in a kind of magnetic floating traffic | |
| CN201656466U (en) | Device for limiting transient recovery voltage | |
| KR101623759B1 (en) | Circuit breaker control system and method for distributing board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200728 |
|
| RJ01 | Rejection of invention patent application after publication |