CN112573393A - Visual wireless charging device of tower machine - Google Patents
Visual wireless charging device of tower machine Download PDFInfo
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- CN112573393A CN112573393A CN202011410465.6A CN202011410465A CN112573393A CN 112573393 A CN112573393 A CN 112573393A CN 202011410465 A CN202011410465 A CN 202011410465A CN 112573393 A CN112573393 A CN 112573393A
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- pulley
- module
- electrically connected
- triode
- diode
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
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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
- B66C13/16—Applications of indicating, registering, or weighing devices
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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
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- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1846—Rotary generators structurally associated with wheels or associated parts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a visual wireless charging device of a tower crane, which comprises a gravity sensing module, a pulley block, a pulley driving module, a power generation module, a voltage regulation module, a storage battery, an alternating magnetic field generation module, a control module and a display module, wherein the gravity sensing module is arranged on a lifting appliance and used for detecting the acceleration of the lifting appliance and transmitting the acceleration of the lifting appliance to the control module; the pulley block comprises a first pulley and a second pulley, the first pulley is used for guiding the movement of the lifting rope, the second pulley and the first pulley are arranged at intervals and are respectively positioned at two opposite sides of the lifting rope, the second pulley and the lifting rope are arranged at intervals in a first state, and the second pulley is contacted with the lifting rope in a second state; the alternating magnetic field generating module is used for radiating the electric energy of the storage battery; the display module is used for displaying the electric quantity information of the storage battery in real time. The invention has the advantages of convenient operation on the rechargeable battery, energy saving and environmental protection.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a visual wireless charging device for a tower crane.
Background
With the rapid development of economy and science and technology, various industries, particularly the construction industry, are rapidly developing, and the construction speed of construction projects is continuously updated. At present, tower cranes at home and abroad better ensure the speed and the safety in the hoisting process. The tower crane is a tower crane for short and is mainly used for vertical and horizontal conveying of materials in building construction and the like. In the process of conveying materials, a bearing trolley and a lifting hook of the tower crane are key parts of the whole working cycle. As high-rise buildings become more and more, the environment of a construction site becomes more and more complex. The distance between the bearing trolley and the lifting hook and the operator is far, so that the bearing trolley and the lifting hook are blind areas for the operator to see.
In order to improve the understanding of the surrounding environment of the carrying trolley and the lifting appliance by an operator, electronic devices such as a camera, a positioner and the like need to be arranged on the carrying trolley and the lifting appliance. However, the load-carrying trolley and the spreader are movable, and the spreader is connected to the load-carrying trolley only through the lifting rope, so that it is difficult to externally connect a power supply. Typically, people have rechargeable batteries mounted on the load carrier and spreader to power the electronics. However, some worksites are at a relatively large distance from the location of the power supply, and it is inconvenient to charge the rechargeable battery.
Disclosure of Invention
The invention solves the technical problem of providing a visual wireless charging device of a tower crane, which is convenient for charging a rechargeable battery.
The invention provides a visual wireless charging device for a tower crane, which is used for being installed on the tower crane and matched with a lifting rope of the tower crane, wherein the lifting rope is connected with a lifting appliance for lifting goods; the device comprises a gravity sensing module, a pulley block, a pulley driving module, a power generation module, a voltage regulation module, a storage battery, an alternating magnetic field generation module, a control module and a display module, wherein the gravity sensing module is arranged on the lifting appliance and used for detecting the acceleration of the lifting appliance and transmitting the acceleration of the lifting appliance to the control module; the pulley block comprises a first pulley and a second pulley, the first pulley is used for guiding the lifting rope to move, the second pulley and the first pulley are arranged at intervals and are respectively positioned at two opposite sides of the lifting rope, the second pulley and the lifting rope are arranged at intervals in a first state, and the second pulley is contacted with the lifting rope in a second state;
the pulley driving module is used for driving the second pulley to be spaced from or contacted with the lifting rope; the power generation module is connected with the second pulley and is used for generating power under the driving of the second pulley; the voltage adjusting module is used for adjusting the voltage output by the power generation module so as to charge the storage battery; the alternating magnetic field generating module is used for radiating the electric energy of the storage battery so as to charge a target device; the control module is used for controlling the alternating magnetic field generating module and controlling the pulley driving module to work according to the acceleration information transmitted by the gravity sensing module; the display module is used for displaying the electric quantity information of the storage battery in real time.
In one embodiment, the pulley block further includes a third pulley, the third pulley is in contact with the lifting rope, the third pulley, the first pulley and the second pulley are located in the same plane, the third pulley and the first pulley are located on the same side of the lifting rope, and the second pulley is located on a perpendicular bisector of a connecting line of the first pulley and the third pulley.
In one embodiment, a distance between the third pulley and the first pulley is less than a diameter of the second pulley.
In one embodiment, the pulley driving module comprises an electric cylinder, the electric cylinder is electrically connected with the control module, and a telescopic rod of the electric cylinder is pivoted with the second pulley.
In one embodiment, the gravity sensing module is magnetically connected with the lifting appliance.
In one embodiment, the voltage regulation module comprises a driving circuit and a boosting circuit, wherein the driving circuit is electrically connected with the power generation module and the boosting circuit and is used for driving the boosting circuit; the booster circuit is electrically connected with the storage battery and used for boosting the voltage output by the power generation module and then outputting the boosted voltage to the storage battery.
In one embodiment, the driving circuit comprises a first diode, a first triode, a second triode, a third triode, a first resistor, a second resistor, a third resistor and a fourth resistor, wherein the anode of the first diode is electrically connected with the output end of the power generation module, and the cathode of the first diode is connected with the emitter collector of the third triode; the first end of the first resistor is electrically connected with the anode of the first diode, and the second end of the first resistor is electrically connected with the base of the first triode; the first end of the second resistor is electrically connected with the second end of the first resistor, and the second end of the second resistor is grounded;
the first end of the third resistor is electrically connected with the cathode of the first diode, and the second end of the third resistor is electrically connected with the collector of the first triode; a first end of the fourth resistor is electrically connected with a cathode of the first diode, and a second end of the fourth resistor is electrically connected with a collector of the second triode; the emitting set of the first triode is grounded, the base electrode of the second triode is electrically connected with the collector electrode of the first triode, and the emitting set of the second triode is grounded; and the base electrode of the third triode is electrically connected with the collector electrode of the second triode, and the collector electrode of the third triode is electrically connected with the booster circuit.
In one embodiment, the boost circuit comprises a first inductor, a second diode, a third diode, a fourth triode and a capacitor, wherein a first end of the first inductor is electrically connected with a collector of the third triode, and a second end of the first inductor is electrically connected with an anode of the second diode; the first end of the second inductor is electrically connected with the collector electrode of the third triode, and the second end of the second inductor is electrically connected with the base electrode of the fourth triode; the cathode of the third diode is electrically connected with the storage battery, the anode of the third diode is connected with the cathode of the second diode, and the cathode of the third diode is grounded; an emitting electrode of the fourth triode is grounded, a first end of the capacitor is connected with a cathode of the second diode, and a second end of the capacitor is grounded; wherein the third diode is a light emitting diode.
The invention has the following beneficial effects: according to the invention, through the cooperation of the gravity sensing module, the pulley block, the pulley driving module, the power generation module, the voltage regulation module, the storage battery, the alternating magnetic field generation module, the control module and the display module, when the control module judges that the lifting appliance moves downwards according to the acceleration information transmitted by the gravity sensing module, the control module controls the pulley driving module to drive the second pulley to move to a position in contact with the lifting rope, and then the lifting rope drives the second pulley to move, so that the power generation module generates power to charge the storage battery, and mechanical energy is converted into electric energy, therefore, the lifting appliance is energy-saving and environment-friendly. When the rechargeable battery needs to be charged, the rechargeable battery is placed on the wireless charger, then the user triggers the control module, and the control module controls the alternating magnetic field generating module to radiate the electric energy of the storage battery so as to charge the rechargeable battery on the wireless charger, so that the charging is more convenient.
Drawings
Fig. 1 is a schematic block diagram of a visual wireless charging device of a tower crane according to the invention.
Fig. 2 is a schematic structural diagram of the pulley block and the pulley driving module of the visual wireless charging device for the tower crane according to the invention when the pulley block and the pulley driving module are matched with the lifting rope in the first state.
Fig. 3 is a schematic structural diagram of the pulley block and the pulley driving module of the visual wireless charging device for the tower crane of the invention when being matched with the lifting rope in the second state.
Fig. 4 is a circuit diagram of the voltage regulation module of the visual wireless charging device of the tower crane of the invention when being matched with the power generation module.
Fig. 5 is a schematic block diagram of an alternating magnetic field generating module of the visual wireless charging device for the tower crane of the invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, if not conflicting, the embodiments of the present invention and the features of the embodiments may be combined with each other within the scope of protection of the present invention.
Referring to fig. 1 to 5, the invention provides a visual wireless charging device for a tower crane, which is used for being mounted on the tower crane and matched with a lifting rope 100 of the tower crane, wherein the lifting rope 100 is connected with a lifting appliance 200 for lifting goods. The visual wireless charging device of tower machine includes gravity sensing module 1, assembly pulley 2, pulley drive module 3, power generation module 4, voltage regulation module 5, battery 6, alternating magnetic field produce module 7, control module 8 and display module 9, gravity sensing module 1 is installed on hoist 200, is used for detecting hoist 200's acceleration and will hoist 200's acceleration conveys control module 8. The pulley block 2 comprises a first sliding 21 wheel and a second sliding wheel 22, the first sliding 21 wheel is used for guiding the lifting rope 100 to move, the second sliding wheel 22 and the first sliding 21 wheel are arranged at intervals and are respectively positioned at two opposite sides of the lifting rope 100, the second sliding wheel 22 and the lifting rope 100 are arranged at intervals in a first state, and the second sliding wheel 22 is in contact with the lifting rope 100 in a second state.
The pulley driving module 3 is used for driving the second pulley 22 to be spaced apart from or in contact with the lifting rope 100. The power generation module 4 is connected with the second pulley 22 and is used for generating power under the driving of the second pulley 22. In this embodiment, the power generation module 4 is a conventional technology, and is not described herein again. The voltage regulating module 5 is configured to regulate the voltage output by the power generating module 4 to charge the storage battery 6. The alternating magnetic field generating module 7 is used for radiating the electric energy of the storage battery 6 to charge a target device. The control module 8 is used for controlling the alternating magnetic field generating module 7 and controlling the pulley driving module 3 to work according to the acceleration information transmitted by the gravity sensing module 1. The display module 9 is used for displaying the electric quantity information of the storage battery 6 in real time, and is convenient for knowing the electric quantity of the storage battery 6. The control module 8 is provided with a starting switch for starting and a trigger switch for controlling the alternating magnetic field generating module 7 to work.
Preferably, the gravity sensing module 1 is magnetically connected with the lifting appliance 200, so that the installation is convenient, and the installation efficiency is improved. The gravity sensing module 1 comprises a gravity sensor, a single chip microcomputer and a wireless communication unit, the gravity sensor detects the acceleration of the lifting appliance 200 and transmits the acceleration of the lifting appliance 200 to the single chip microcomputer, and the single chip microcomputer controls the wireless communication unit to transmit the acceleration of the lifting appliance 200 to the control module 8.
Preferably, the pulley block 2 further includes a third pulley 23, the third pulley 23 is in contact with the lifting rope 100, the third pulley 23 is located in the same plane as the first pulley 21 and the second pulley 22, the third pulley 23 and the first pulley 21 are located on the same side of the lifting rope 100, the third pulley 23 is located right below the first pulley 21, and the second pulley 22 is located on a perpendicular bisector of a connecting line of the first pulley 21 and the third pulley 23, so that stability of the second pulley 22 in contact with the lifting rope 100 can be improved. Preferably, the distance between the third pulley 23 and the first pulley 21 is smaller than the diameter of the second pulley 22, so that when the control module 8 indicates that the lifting appliance 200 is descending at a speed greater than a preset value according to the signal from the gravity sensor, and the lifting rope 100 may be broken, the control module 8 controls the pulley driving module 3 to drive the second pulley 22 to move towards the lifting rope 100 until the first pulley 21, the second pulley 22 and the third pulley 23 tightly clamp the lifting rope 100, so as to increase the friction force applied to the lifting rope 100, so as to reduce the dropping speed of the lifting appliance 200, and therefore, a person below the lifting appliance 200 can obtain more escape time, thereby improving safety. In an embodiment, the visual wireless charging device for the tower crane further comprises an audible and visual alarm module, wherein the audible and visual alarm module is electrically connected with the control module 8 and is used for sending an audible and visual alarm signal when the descending speed of the lifting appliance 200 is higher than a preset value.
Preferably, the pulley driving module 3 includes an electric cylinder electrically connected to the control module 8, and an extension rod of the electric cylinder is pivotally connected to the second pulley 22. In another embodiment, the electric cylinder can be replaced by an air cylinder, and in the using process of the air cylinder, the transmission precision which can be achieved by the air cylinder is very limited, and the control precision is achieved only by externally performing mechanical limiting. The electric cylinder converts thrust through a servo system, can keep very high precision, and does not need any mechanical hardware for limiting outside, so that the electric cylinder is better in precision, stability and durability, and the second pulley 22 can be controlled to be accurately positioned.
Preferably, the voltage regulating module 5 includes a driving circuit 51 and a voltage boosting circuit 52, and the driving circuit 51 is electrically connected to the power generating module 4 and the voltage boosting circuit 52 for driving the voltage boosting circuit 52. The boosting circuit 52 is electrically connected to the battery 6, and is configured to boost the voltage output by the power generation module 4 and output the boosted voltage to the battery 6. By providing the boosting circuit 52, the electric devices are not damaged when the circuit is broken, that is, overvoltage is not generated, thereby improving safety.
Preferably, the driving circuit 51 includes a first diode D1, a first transistor Q1, a second transistor Q2, a third transistor Q3, a first resistor R1, a second resistor R2, a third resistor R3, and a fourth resistor R4, wherein an anode of the first diode D1 is electrically connected to the output terminal of the power generation module 4, and a cathode of the first diode D1 is connected to the emitter collector of the third transistor Q3. A first terminal of the first resistor R1 is electrically connected to the anode of the first diode D1, and a second terminal of the first resistor R1 is electrically connected to the base of the first transistor Q1. The first end of the second resistor R2 is electrically connected with the second end of the first resistor R1, and the second end of the second resistor R2 is grounded.
A first terminal of the third resistor R3 is electrically connected to the cathode of the first diode D1, and a second terminal of the third resistor R3 is electrically connected to the collector of the first transistor Q1. A first terminal of the fourth resistor R4 is electrically connected to the cathode of the first diode D1, and a second terminal of the fourth resistor R4 is electrically connected to the collector of the second transistor Q2. The emitter set of the first transistor Q1 is grounded, the base of the second transistor Q2 is electrically connected to the collector of the first transistor Q1, and the emitter set of the second transistor Q2 is grounded. The base of the third transistor Q3 is electrically connected to the collector of the second transistor Q2, and the collector of the third transistor Q3 is electrically connected to the boost circuit 52. The driving circuit 51 has the advantage of being stable and reliable.
Preferably, the boosting circuit 52 includes a first inductor L1, a second inductor L2, a second diode D2, a third diode D3, a fourth transistor Q4 and a capacitor C, a first end of the first inductor L1 is electrically connected to a collector of the third transistor Q3, and a second end of the first inductor L1 is electrically connected to an anode of the second diode D2. A first terminal of the second inductor L2 is electrically connected to the collector of the third transistor Q3, and a second terminal of the second inductor L2 is electrically connected to the base of the fourth transistor Q4. The cathode of the third diode D3 is electrically connected to the battery 6, the anode of the third diode D3 is connected to the cathode of the second diode D2, and the cathode of the third diode D3 is grounded. An emitter of the fourth transistor Q4 is grounded, a first terminal of the capacitor C is connected to a cathode of the second diode D2, and a second terminal of the capacitor C is grounded. The third diode D3 is a light emitting diode to display the charging status.
Preferably, the alternating magnetic field generating module 7 includes a high-frequency oscillating circuit 71, a high-frequency power amplifying circuit 72 and a transmitting coil 73, the high-frequency oscillating circuit 71 and the high-frequency power amplifying circuit 72 are both electrically connected to the control module 8, and the high-frequency oscillating circuit 71 is electrically connected to the battery. The high-frequency oscillation circuit 71 generates an oscillation signal higher than 100KHz under the control of the control module 8, the high-frequency power amplification circuit 72 is used for amplifying the power of the oscillation signal, and the transmitting coil 73 is used for generating an alternating magnetic field. When it is desired to charge the rechargeable battery, the rechargeable battery is placed on a wireless charger, and the receiving coil of the wireless charger is coupled to the transmitting coil 73, thereby charging the rechargeable battery.
In summary, according to the invention, through the cooperation among the gravity sensing module 1, the pulley block 2, the pulley driving module 3, the power generation module 4, the voltage regulation module 5, the storage battery 6, the alternating magnetic field generation module 7, the control module 8 and the display module 9, when the control module 8 judges that the lifting appliance 200 moves downwards according to the acceleration information transmitted by the gravity sensing module 1, the control module 8 controls the pulley driving module 3 to drive the second pulley 22 to move to a position in contact with the lifting rope 100, and then the lifting rope 100 drives the second pulley 22 to move, so that the power generation module 4 generates power to charge the storage battery 6, and mechanical energy is converted into electric energy, which is energy-saving and environment-friendly. When the rechargeable battery needs to be charged, the rechargeable battery is placed on the wireless charger, then the user triggers the control module 8, and the control module 8 controls the alternating magnetic field generating module 7 to radiate the electric energy of the storage battery 6 to charge the rechargeable battery on the wireless charger, so that the charging is more convenient.
The tower crane visualization wireless charging device provided by the invention is described in detail above, a specific example is applied in the description to explain the principle and the implementation of the invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the invention. Meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, the present disclosure is only an embodiment of the present disclosure, and not intended to limit the scope of the present disclosure, and all equivalent structures or equivalent flow transformations made by using the present disclosure and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present disclosure, and should not be construed as limiting the present disclosure.
Claims (8)
1. A visual wireless charging device of a tower crane is used for being installed on the tower crane and matched with a lifting rope of the tower crane, and the lifting rope is connected with a lifting appliance for lifting goods; the device is characterized by comprising a gravity sensing module, a pulley block, a pulley driving module, a power generation module, a voltage regulation module, a storage battery, an alternating magnetic field generation module, a control module and a display module, wherein the gravity sensing module is arranged on the lifting appliance and used for detecting the acceleration of the lifting appliance and transmitting the acceleration of the lifting appliance to the control module; the pulley block comprises a first pulley and a second pulley, the first pulley is used for guiding the lifting rope to move, the second pulley and the first pulley are arranged at intervals and are respectively positioned at two opposite sides of the lifting rope, the second pulley and the lifting rope are arranged at intervals in a first state, and the second pulley is contacted with the lifting rope in a second state;
the pulley driving module is used for driving the second pulley to be spaced from or contacted with the lifting rope; the power generation module is connected with the second pulley and is used for generating power under the driving of the second pulley; the voltage adjusting module is used for adjusting the voltage output by the power generation module so as to charge the storage battery; the alternating magnetic field generating module is used for radiating the electric energy of the storage battery so as to charge a target device; the control module is used for controlling the alternating magnetic field generating module and controlling the pulley driving module to work according to the acceleration information transmitted by the gravity sensing module; the display module is used for displaying the electric quantity information of the storage battery in real time.
2. The visual wireless charging device of tower machine of claim 1, characterized in that the assembly pulley further comprises a third pulley, the third pulley is in contact with the lifting rope, the third pulley is located in the same plane with the first pulley and the second pulley, the third pulley and the first pulley are located on the same side of the lifting rope, and the second pulley is located on the perpendicular bisector of the connecting line of the first pulley and the third pulley.
3. The visual wireless charging device of tower crane as claimed in claim 2, characterized in that the distance between the third pulley and the first pulley is smaller than the diameter of the second pulley.
4. The visual wireless charging device of the tower crane as claimed in any one of claims 1 to 3, wherein the pulley driving module comprises an electric cylinder, the electric cylinder is electrically connected with the control module, and a telescopic rod of the electric cylinder is pivoted with the second pulley.
5. The visual wireless charging device of the tower crane as claimed in any one of claims 1 to 3, wherein the gravity sensing module is magnetically connected with the lifting appliance.
6. The visual wireless charging device of the tower crane according to any one of claims 1 to 3, wherein the voltage regulating module comprises a driving circuit and a boosting circuit, and the driving circuit is electrically connected with the power generation module and the boosting circuit and is used for driving the boosting circuit; the booster circuit is electrically connected with the storage battery and used for boosting the voltage output by the power generation module and then outputting the boosted voltage to the storage battery.
7. The visual wireless charging device of the tower crane as claimed in claim 6, wherein the driving circuit comprises a first diode, a first triode, a second triode, a third triode, a first resistor, a second resistor, a third resistor and a fourth resistor, the anode of the first diode is electrically connected with the output end of the power generation module, and the cathode of the first diode is connected with the emitter collector of the third triode; the first end of the first resistor is electrically connected with the anode of the first diode, and the second end of the first resistor is electrically connected with the base of the first triode; the first end of the second resistor is electrically connected with the second end of the first resistor, and the second end of the second resistor is grounded;
the first end of the third resistor is electrically connected with the cathode of the first diode, and the second end of the third resistor is electrically connected with the collector of the first triode; a first end of the fourth resistor is electrically connected with a cathode of the first diode, and a second end of the fourth resistor is electrically connected with a collector of the second triode; the emitting set of the first triode is grounded, the base electrode of the second triode is electrically connected with the collector electrode of the first triode, and the emitting set of the second triode is grounded; and the base electrode of the third triode is electrically connected with the collector electrode of the second triode, and the collector electrode of the third triode is electrically connected with the booster circuit.
8. The visual wireless charging device of the tower crane according to claim 7, wherein the boost circuit comprises a first inductor, a second diode, a third diode, a fourth triode and a capacitor, wherein a first end of the first inductor is electrically connected with a collector of the third triode, and a second end of the first inductor is electrically connected with an anode of the second diode; the first end of the second inductor is electrically connected with the collector electrode of the third triode, and the second end of the second inductor is electrically connected with the base electrode of the fourth triode; the cathode of the third diode is electrically connected with the storage battery, the anode of the third diode is connected with the cathode of the second diode, and the cathode of the third diode is grounded; an emitting electrode of the fourth triode is grounded, a first end of the capacitor is connected with a cathode of the second diode, and a second end of the capacitor is grounded; wherein the third diode is a light emitting diode.
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| CN202011410465.6A CN112573393A (en) | 2020-12-03 | 2020-12-03 | Visual wireless charging device of tower machine |
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| CN202011410465.6A CN112573393A (en) | 2020-12-03 | 2020-12-03 | Visual wireless charging device of tower machine |
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| CN112020474A (en) * | 2018-04-26 | 2020-12-01 | 利勃海尔工厂比伯拉赫股份有限公司 | Crane with a movable crane |
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