CN216101574U - Storage logistics AGV car end device based on wireless power supply is from switching circuit - Google Patents

Storage logistics AGV car end device based on wireless power supply is from switching circuit Download PDF

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Publication number
CN216101574U
CN216101574U CN202121880222.9U CN202121880222U CN216101574U CN 216101574 U CN216101574 U CN 216101574U CN 202121880222 U CN202121880222 U CN 202121880222U CN 216101574 U CN216101574 U CN 216101574U
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China
Prior art keywords
circuit
power supply
vehicle
switching circuit
supply self
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CN202121880222.9U
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Chinese (zh)
Inventor
朱敏
谭林林
鲍光婕
朱亚伟
徐辉
葛飞
徐幸荣
杨全兵
戴罡
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Zhenjinag Klockner Moeller Electrical Systems Co ltd
Southeast University
Daqo Group Co Ltd
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Zhenjinag Klockner Moeller Electrical Systems Co ltd
Southeast University
Daqo Group Co Ltd
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Priority to CN202121880222.9U priority Critical patent/CN216101574U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The utility model discloses a storage logistics AGV vehicle end device based on a wireless power supply self-switching circuit, which comprises a vehicle end energy collecting unit, a power supply self-switching circuit and a vehicle end communication unit, wherein the output end of the vehicle end energy collecting unit is connected with the input end of the power supply self-switching circuit, and the output end of the power supply self-switching circuit is connected with the input end of the vehicle end communication unit; the power supply self-switching circuit comprises a voltage reduction DC/DC conversion circuit, a voltage boost DC/DC conversion circuit, a vehicle-mounted battery and a Schottky diode with low forward voltage drop. The utility model can realize the self-switching of the charging circuit in the wireless charging of the electric automobile, realize the matching of the charging target and the high-speed and safe feedback of the charging information of the vehicle end such as the charging time, the charging voltage, the current, the vehicle-mounted battery state and the like, so that the storage logistics AGV vehicle end device based on the wireless power supply self-switching circuit has the characteristics of flexible perception and self-adaptive adjustment of the charging state of the vehicle end, thereby shortening the charging time.

Description

Storage logistics AGV car end device based on wireless power supply is from switching circuit
Technical Field
The utility model relates to the technical field of wireless charging, in particular to a warehouse logistics AGV vehicle end device based on a wireless power supply self-switching circuit.
Background
An AGV is an Automated guided vehicle, which is called an automatic navigation device in chinese, and is a transport vehicle equipped with an electromagnetic or optical automatic navigation device, which can travel along a predetermined navigation path, and has safety protection and various transfer functions. The charging device has the characteristics of high automation degree, charging automation, reduction of occupied area and the like, and is increasingly applied to modern enterprise workshops.
As AGVs become more widely used, higher demands are placed on their charging devices. The conventional AGV charging mode mainly comprises a manual charging mode and an automatic charging mode, wherein the manual charging mode adopts a traditional cable to transmit electric energy or directly replace a rechargeable battery; the cable charged by the plug wire is easily damaged externally, so that certain potential safety hazard exists; AGV automatic charging mainly is wireless charging technology for non-contact power transmission, has avoided wired multiple problem of charging, and makes AGV's use more intelligent, need not artificial cooperation, has wide application prospect. In the wireless charging process, the vehicle end and the ground end need the communication module to exchange charging information, so as to realize charging management, the power supply of the communication module of the vehicle end is generally provided by the vehicle-mounted battery, the power supply of the modules such as the communication module of the vehicle end needs to be switched to the charging system for power supply in the charging process, so as to overcome the problem that the vehicle-mounted battery cannot have two states of charging and discharging at the same time, therefore, a warehousing logistics AGV vehicle end device based on a wireless power supply self-switching circuit is necessary to be researched, the complexity of power supply switching of a power receiving module of the vehicle end is reduced, and thus, the self-adaptive charging management of the modules such as the vehicle end communication is realized.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a storage logistics AGV vehicle end device based on a wireless power supply self-switching circuit, which comprises a vehicle end energy collecting unit, a power supply self-switching circuit and a vehicle end communication unit, wherein the output end of the vehicle end energy collecting unit is connected with the input end of the power supply self-switching circuit, and the output end of the power supply self-switching circuit is connected with the input end of the vehicle end communication unit; the power supply self-switching circuit comprises a voltage reduction DC/DC conversion circuit, a voltage boost DC/DC conversion circuit, a vehicle-mounted battery and a Schottky diode with low forward voltage drop.
Furthermore, the step-down DC/DC conversion circuit comprises a 36V-5V Buck type DC/DC circuit and a 48V-5V Buck type DC/DC circuit.
Further, the Boost DC/DC conversion circuit comprises a Boost type DC/DC circuit of 36V-48V.
Further, the 36V-5V Buck type DC/DC circuit and the 36V-48V Boost type DC/DC circuit are connected in parallel at the input; the outputs of the 36V-5V Buck type DC/DC circuit and the 48V-5V Buck type DC/DC circuit are connected in parallel; the 48V-5V Buck type DC/DC circuit and the low forward voltage drop Schottky diode are connected in series, and a fixed voltage battery is connected between the 36V-48V Boost type DC/DC circuit and the 48V-5V Buck type DC/DC circuit in series.
Further, the Schottky diode with low forward voltage drop clamps the output of the DC/DC circuit with 48-5V.
Further, when the Schottky diode with low forward voltage drop clamps the output voltage of the DC/DC circuit with 48V-5V, the output voltage of the Schottky diode with low forward voltage drop is less than 5V.
Further, the fixed-voltage battery is an on-vehicle battery with a standard voltage of 48V.
Compared with the prior art, the utility model has the following beneficial effects:
the warehouse logistics AGV vehicle end device based on the wireless power supply self-switching circuit reduces the complexity of power supply switching of a vehicle end power receiving module, achieves matching of charging targets, and feeds back charging information of the vehicle end such as charging time, charging voltage, current and vehicle-mounted battery state at high speed and safely, so that the warehouse logistics AGV has the characteristics of flexible sensing and self-adaptive adjustment of the vehicle end charging state, and charging time is shortened.
Drawings
Fig. 1 is a structural diagram of an AGV end device for warehouse logistics based on a wireless power supply self-switching circuit according to an embodiment of the present application;
fig. 2 is a flowchart illustrating information interaction between a vehicle-end communication unit and a ground-end communication unit of a warehouse logistics AGV vehicle-end device based on a wireless power supply self-switching circuit according to an embodiment of the present application.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
Example 1:
as shown in fig. 1, the warehouse logistics AGV vehicle end device based on the wireless power supply self-switching circuit provided in this embodiment includes a vehicle end energy collection unit, a power supply self-switching circuit, and a vehicle end communication unit, wherein an output end of the vehicle end energy collection unit is connected with an input end of the power supply self-switching circuit, and an output end of the power supply self-switching circuit is connected with an input end of the vehicle end communication unit; the power supply self-switching circuit comprises a voltage reduction DC/DC conversion circuit, a voltage boost DC/DC conversion circuit, a vehicle-mounted battery and a Schottky diode with low forward voltage drop. The vehicle-end energy collecting unit converts the high-frequency magnetic field of the ground-end energy transmitting device into alternating current so as to supply power and charge the whole vehicle-end device. The ground end energy transmitting device further comprises a ground end communication unit.
The voltage-reducing DC/DC conversion circuit comprises a 36V-5V Buck type DC/DC circuit used for supplying power to the vehicle-end communication unit from the vehicle-end energy collecting unit, and a 48V-5V Buck type DC/DC circuit used for supplying power to the vehicle-end communication unit from the vehicle-mounted battery.
The Boost DC/DC conversion circuit comprises a 36V-48V Boost type DC/DC circuit and is used for charging a vehicle-mounted battery by a vehicle-end energy collecting unit.
The standard voltage of the vehicle-mounted battery is 48V.
The Schottky diode with low forward voltage drop is used for clamping the output of a 48V-5V DC/DC circuit, so that a power supply of the vehicle-end communication unit is automatically converted from a vehicle-mounted battery to the vehicle-end energy collecting unit in the starting process of the vehicle-end energy collecting unit.
Specifically, the 36V-5V Buck type DC/DC circuit and the 36V-48V Boost type DC/DC circuit are connected in parallel at the input, and the input of the Buck type DC/DC circuit is connected to the output end of the magnetic coupling resonant vehicle-end energy collecting unit based on the LCC-S topology; the output ends of the 36V-5V Buck type DC/DC circuit and the 48V-5V Buck type DC/DC circuit are connected in parallel, and the output ends of the Buck type DC/DC circuit and the 48V-5V Buck type DC/DC circuit are connected to the input end of the vehicle-mounted communication unit; the 48V-5V Buck type DC/DC circuit is connected with the Schottky diode with low forward voltage drop in series; before the magnetic coupling resonant type vehicle-end energy collecting unit based on the LCC-S topology is started, the vehicle-mounted battery supplies power to the vehicle-end communication unit, the output voltage of the Schottky diode is slightly smaller than 5V due to the fact that forward voltage drop exists in the Schottky diode, after the magnetic coupling resonant type vehicle-end energy collecting unit based on the LCC-S topology is started, the output voltage of the 36V-5V Buck type DC/DC circuit is slowly increased to 5V, the Schottky diode is reversely blocked at the moment, the power supply of the vehicle-end communication unit is automatically switched from the vehicle-mounted power supply to the output of the 36V-5V Buck type DC/DC circuit, and power supply self-switching is achieved.
Specifically, with reference to fig. 1 and fig. 2, the vehicle-side communication unit adopts a 5G network module, and integrates a security chip based on a cryptographic algorithm SM 7; the vehicle-end communication unit sends charging target matching information firstly, and establishes a safe transmission channel of vehicle-end charging state information data after confirming that the charging target is successfully matched. After the safe transmission channel is established, the magnetic coupling resonant vehicle-end energy collection unit based on the LCC-S topology starts to work, the vehicle-end communication unit sends charging information such as charging time, charging voltage, charging current and battery state to the ground-end communication unit through the safe transmission channel, the ground-end communication unit sends an error signal to the vehicle-end energy collection unit after receiving the vehicle-end charging information, and therefore control signals of the vehicle-end energy collection unit are changed, output of the vehicle-end energy collection unit is adjusted, the purpose of shortening charging time is achieved, data transmitted in the whole communication process are encrypted through a SM7 algorithm, and the magnetic coupling resonant vehicle-end energy collection unit has high safety.
The storage logistics AGV car end device based on wireless power supply self-switching circuit that this application embodiment provided for car end communication unit is high-speed, feeds back vehicle charging information to ground end communication unit safely, makes storage logistics AGV car end device based on wireless power supply self-switching circuit have the nimble perception to car end charged state, and self-adaptation adjustment supply circuit's characteristics shorten the charge time.

Claims (7)

1. A wireless power supply self-switching circuit based storage logistics AGV vehicle end device is characterized by comprising a vehicle end energy collecting unit, a power supply self-switching circuit and a vehicle end communication unit, wherein the output end of the vehicle end energy collecting unit is connected with the input end of the power supply self-switching circuit, and the output end of the power supply self-switching circuit is connected with the input end of the vehicle end communication unit; the power supply self-switching circuit comprises a voltage reduction DC/DC conversion circuit, a voltage boost DC/DC conversion circuit, a vehicle-mounted battery and a Schottky diode with low forward voltage drop.
2. The AGV end device for warehouse logistics based on wireless power supply self-switching circuit of claim 1, wherein the step-down DC/DC conversion circuit comprises a 36V-5V Buck type DC/DC circuit and a 48V-5V Buck type DC/DC circuit.
3. The AGV end device for warehouse logistics based on the wireless power supply self-switching circuit as claimed in claim 2, wherein the Boost DC/DC conversion circuit comprises a Boost type DC/DC circuit of 36V-48V.
4. The AGV end device for warehouse logistics based on the wireless power supply self-switching circuit of claim 3, wherein the 36V-5V Buck type DC/DC circuit and the 36V-48V Boost type DC/DC circuit are connected in parallel at the input; the outputs of the 36V-5V Buck type DC/DC circuit and the 48V-5V Buck type DC/DC circuit are connected in parallel; the 48V-5V Buck type DC/DC circuit and the low forward voltage drop Schottky diode are connected in series, and a fixed voltage battery is connected between the 36V-48V Boost type DC/DC circuit and the 48V-5V Buck type DC/DC circuit in series.
5. The wirelessly powered self-switching circuit based AGV end device of claim 4 wherein said low forward voltage drop Schottky diode clamps the output of a 48V-5V DC/DC circuit.
6. The AGV end device for warehouse logistics based on wireless power supply self-switching circuit of claim 5, wherein when the Schottky diode with low forward voltage drop clamps the output voltage of the DC/DC circuit of 48V-5V, the output voltage of the Schottky diode with low forward voltage drop is less than 5V.
7. The AGV end device for warehouse logistics based on wireless power supply self-switching circuit of claim 6, wherein the fixed voltage battery is an on-vehicle battery with a standard voltage of 48V.
CN202121880222.9U 2021-08-11 2021-08-11 Storage logistics AGV car end device based on wireless power supply is from switching circuit Active CN216101574U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121880222.9U CN216101574U (en) 2021-08-11 2021-08-11 Storage logistics AGV car end device based on wireless power supply is from switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121880222.9U CN216101574U (en) 2021-08-11 2021-08-11 Storage logistics AGV car end device based on wireless power supply is from switching circuit

Publications (1)

Publication Number Publication Date
CN216101574U true CN216101574U (en) 2022-03-22

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CN (1) CN216101574U (en)

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