CN111130359A - Power supply system for AGV - Google Patents
Power supply system for AGV Download PDFInfo
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- CN111130359A CN111130359A CN202010043586.5A CN202010043586A CN111130359A CN 111130359 A CN111130359 A CN 111130359A CN 202010043586 A CN202010043586 A CN 202010043586A CN 111130359 A CN111130359 A CN 111130359A
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- 238000001914 filtration Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 239000000306 component Substances 0.000 abstract description 17
- 230000006978 adaptation Effects 0.000 abstract description 8
- 239000008358 core component Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
- H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
- H02M5/10—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers
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- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
- H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
- H02M5/10—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers
- H02M5/12—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using transformers for conversion of voltage or current amplitude only
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
- H02M7/06—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The invention discloses a power supply system for an AGV (automatic guided vehicle), which comprises a vehicle-mounted power supply, wherein the output end of the vehicle-mounted power supply is electrically connected with the input ends of a plurality of transformers, the output ends of the transformers are electrically connected with the input ends of wiring terminals, the wiring terminals are pull-plug type wiring terminals, and the wiring terminals are electrically connected with a servo motor through relays. The vehicle-mounted power supply carries out time delay protection through the relay, and the core components in the AGV are prevented from being possibly damaged when accidental faults such as voltage fluctuation, overlarge current and the like occur; the transformer is provided with a plurality of transformers, so that power can be supplied to components with different power supply adaptation standards, and a complex integrated system is met; the wiring terminal is a plug-in wiring terminal, and the power supply scheme can be adjusted at any time according to the addition and subtraction of components.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to a power supply system for an AGV.
Background
An AGV (automated Guided vehicle) is a transport vehicle equipped with an electromagnetic or optical automatic guide device, which can travel along a predetermined guide path, and has safety protection and various transfer functions, and belongs to the category of a wheel-type mobile robot. In industrial application, the driver's transportation vehicle is not required, and the rechargeable battery is used as its power source. Generally, the traveling route and behavior can be controlled by a computer, or the traveling route can be set up by using an electromagnetic rail, which is adhered to the floor, and the unmanned transport vehicle can move and operate according to the information from the electromagnetic rail.
The AGV power supply in the prior art has the following problems that (1) the common AGV power supply system in the market lacks delay protection, and the core components in the AGV are possibly damaged when unexpected faults such as voltage fluctuation, overlarge current and the like occur. (2) Common AGV electrical power generating system is mostly fixed mode, and voltage and electric current of unified output same range can only supply power for the components and parts of same power adaptation standard, can not satisfy complex type's integrated system, have restricted AGV's function development. (3) Common plug wire terminal is single or unable adjustment base's mode among the AGV electrical power generating system, is difficult to guarantee the space complexity between each module among the AGV system, is unfavorable for AGV inner space's rational configuration.
Disclosure of Invention
To overcome or at least partially solve the above problems, embodiments of the present invention provide a power supply system for AGVs, so as to improve the safety, stability and reliability of the robot in the power supply state.
The embodiment of the invention is realized by the following steps:
the utility model provides a electrical power generating system for AGV, includes vehicle mounted power, vehicle mounted power's output is connected with the input electricity of a plurality of transformers, and the output of a plurality of transformers is connected with binding post's input electricity, and binding post is for pulling out plug-in binding post, and binding post passes through the relay and is connected with the servo motor electricity.
Through long-term practice and research, the inventor finds that the normal work of the whole system can be influenced by the output and input faults of single equipment in the AGV power supply system in the prior art, so that the robot is abnormal in the working state; compared with the AGV power system in the prior art, the AGV power system can uniformly output the voltage and the current with the same amplitude, and can only supply power to components with the same power adaptation standard; the wiring terminal is a plug-in wiring terminal, and the power supply scheme can be adjusted at any time according to the addition and subtraction of components.
In some embodiments of the invention, the vehicle power supply outputs 8V-55V, and outputs 5V, 12V or 24V after being stepped down by a transformer. Preferably 4 transformers, two of which convert 8V-58V to 5V, one of which converts 48V to 24V, and the other of which converts 36V-48V to 12V. The voltage and the current with different amplitudes are provided, and the power is supplied to components with different power supply adaptation standards.
In some embodiments of the invention, the relay is a time delay relay. The time delay relay is used in a direct current automatic control circuit and serves as an auxiliary relay to increase the number of contacts and the capacity of the contacts. The time of the time delay can be freely adjusted according to the requirement.
In some embodiments of the invention, the internal circuitry of the transformer is a DC/DC voltage step-down circuit. The C/DC buck circuit allows the use of ultra-small sized inductors and capacitors. Efficiency under light load conditions, only 30 μ Α quiescent current is consumed. In addition, the device can provide an off mode of a typical current of 100nA and has an output cutting-off function.
In some embodiments of the invention, the onboard power supply is provided with a rectifying and filtering circuit. The rectification filter circuit converts the alternating current with lower voltage output by the alternating current voltage reduction circuit into unidirectional pulsating direct current to supply to the next equipment.
In some embodiments of the present invention, in the rectifier filter circuit, when the transformer voltage is in a positive half cycle, the diode D1 and the diode D3 obtain a forward voltage, the diode D1 and the diode D3 are turned on, the diode D2 and the diode D4 obtain a reverse voltage, the diode D2 and the diode D4 are turned off, and at this time, the diode D1, the load resistor Rfz and the diode D3 form a power-on loop in the circuit, and a half-wave rectified voltage with positive and negative upper parts is formed on the load resistor Rfz; when the voltage of the transformer is in a negative half cycle, the diode D2 and the diode D4 obtain forward voltage, the diode D2 and the diode D4 are conducted, the diode D1 and the diode D3 obtain reverse voltage, the diode D1 and the diode D3 are cut off, and at the moment, the diode D2, the load resistor Rfz and the diode D4 in the circuit form a power-on loop, and the half-wave rectified voltage with positive upper and negative lower parts is formed on the load resistor Rfz.
The rectifying and filtering circuit can also be a half-wave rectifying circuit and consists of a transformer, a rectifying diode D and a load resistor Rfz, wherein the transformer converts the commercial power voltage into required alternating voltage, and the rectifying diode D converts the alternating voltage into direct current. When the voltage of the transformer is in a positive half period, the upper end of the transformer is positive, the lower end of the transformer is negative, and the diode bears forward voltage and is conducted; when the voltage of the transformer is in a negative half period, the lower end of the transformer is positive, the upper end of the transformer is negative, the diode bears reverse voltage at the moment, the diode is not conducted, and no voltage exists on the load resistor Rfz; thus, the negative half cycle is eliminated, and only the positive half cycle passes through the load resistor Rfz, and a single right-direction (up positive, down negative) voltage is obtained on the load resistor Rfz, thereby achieving the purpose of rectification.
In some embodiments of the invention, the terminals are connected in parallel using a double row of patch terminals. The purpose that sets up like this is that, it has sufficient hole site to guarantee, satisfies the power supply demand of more components and parts.
In some embodiments of the invention, there are 4 transformers.
The embodiment of the invention at least has the following advantages or beneficial effects: the vehicle-mounted power supply carries out time delay protection through the relay, and the core components in the AGV are prevented from being possibly damaged when accidental faults such as voltage fluctuation, overlarge current and the like occur; compared with the AGV power system in the prior art, the AGV power system can uniformly output the voltage and the current with the same amplitude, and can only supply power to components with the same power adaptation standard; the wiring terminal is a plug-in wiring terminal, and the power supply scheme can be adjusted at any time according to the addition and subtraction of components.
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 block diagram of the schematic design of a power system for an AGV according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of a rectifying and filtering circuit in a power supply system for an AGV according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating an operating state of a rectifying and filtering circuit in a power supply system for an AGV according to an embodiment of the present invention.
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 embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
Referring to fig. 1, the present embodiment provides a power supply system for an AGV, which includes a vehicle-mounted power supply, an output end of the vehicle-mounted power supply is electrically connected to input ends of a plurality of transformers, output ends of the plurality of transformers are electrically connected to input ends of a connection terminal, the connection terminal is a plug-in connection terminal, and the connection terminal is electrically connected to a servo motor through a relay.
Through long-term practice and research, the inventor finds that the normal work of the whole system can be influenced by the output and input faults of single equipment in the AGV power supply system in the prior art, so that the robot is abnormal in the working state; compared with the AGV power system in the prior art, the AGV power system can uniformly output the voltage and the current with the same amplitude, and can only supply power to components with the same power adaptation standard; the wiring terminal is a plug-in wiring terminal, and the power supply scheme can be adjusted at any time according to the addition and subtraction of components.
Example 2
Referring to fig. 1, in the power supply system for AGV of the present embodiment, the vehicle power supply outputs 8V to 55V, and outputs 5V, 12V or 24V after being stepped down by the transformer. Preferably 4 transformers, two of which convert 8V-58V to 5V, one of which converts 48V to 24V, and the other of which converts 36V-48V to 12V. The voltage and the current with different amplitudes are provided, and the power is supplied to components with different power supply adaptation standards.
In some embodiments of the invention, the relay is a time delay relay. The time delay relay is used in a direct current automatic control circuit and serves as an auxiliary relay to increase the number of contacts and the capacity of the contacts. The time of the time delay can be freely adjusted according to the requirement.
In some embodiments of the invention, the internal circuitry of the transformer is a DC/DC voltage step-down circuit. The C/DC buck circuit allows the use of ultra-small sized inductors and capacitors. Efficiency under light load conditions, only 30 μ Α quiescent current is consumed. In addition, the device can provide an off mode of a typical current of 100nA and has an output cutting-off function.
Example 3
Referring to fig. 2-3, in the present embodiment, a power supply system for an AGV is provided. The rectification filter circuit converts the alternating current with lower voltage output by the alternating current voltage reduction circuit into unidirectional pulsating direct current to supply to the next equipment.
In the rectifying and filtering circuit, when the voltage of the transformer is in a positive half cycle, a diode D1 and a diode D3 obtain a forward voltage, a diode D1 and a diode D3 are conducted, a diode D2 and a diode D4 obtain a reverse voltage, a diode D2 and a diode D4 are cut off, at the moment, a diode D1, a load resistor Rfz and a diode D3 in the circuit form a power-on loop, and a half-wave rectified voltage which is positive at the top and negative at the bottom is formed on a load resistor Rfz; when the voltage of the transformer is in a negative half cycle, the diode D2 and the diode D4 obtain forward voltage, the diode D2 and the diode D4 are conducted, the diode D1 and the diode D3 obtain reverse voltage, the diode D1 and the diode D3 are cut off, and at the moment, the diode D2, the load resistor Rfz and the diode D4 in the circuit form a power-on loop, and the half-wave rectified voltage with positive upper and negative lower parts is formed on the load resistor Rfz.
The rectifying and filtering circuit can also be a half-wave rectifying circuit and consists of a transformer, a rectifying diode D and a load resistor Rfz, wherein the transformer converts the commercial power voltage into required alternating voltage, and the rectifying diode D converts the alternating voltage into direct current. When the voltage of the transformer is in a positive half period, the upper end of the transformer is positive, the lower end of the transformer is negative, and the diode bears forward voltage and is conducted; when the voltage of the transformer is in a negative half period, the lower end of the transformer is positive, the upper end of the transformer is negative, the diode bears reverse voltage at the moment, the diode is not conducted, and no voltage exists on the load resistor Rfz; thus, the negative half cycle is eliminated, and only the positive half cycle passes through the load resistor Rfz, and a single right-direction (up positive, down negative) voltage is obtained on the load resistor Rfz, thereby achieving the purpose of rectification.
Example 4
Referring to fig. 1, this embodiment is a preferred scheme, and in some embodiments of the present invention, the connection terminals are connected in parallel by using dual rows of plug terminals. The purpose that sets up like this is that, it has sufficient hole site to guarantee, satisfies the power supply demand of more components and parts. In the embodiment of the present invention, 4 transformers are preferable.
The embodiment of the invention at least has the following advantages or beneficial effects: the vehicle-mounted power supply carries out time delay protection through the relay, and the core components in the AGV are prevented from being possibly damaged when accidental faults such as voltage fluctuation, overlarge current and the like occur; compared with the AGV power system in the prior art, the AGV power system can uniformly output the voltage and the current with the same amplitude, and can only supply power to components with the same power adaptation standard; the wiring terminal is a plug-in wiring terminal, and the power supply scheme can be adjusted at any time according to the addition and subtraction of components.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a electrical power generating system for AGV, includes vehicle mounted power, its characterized in that, vehicle mounted power's output is connected, and is a plurality of with the input electricity of a plurality of transformers the output of transformer is connected with binding post's input electricity, binding post is for pulling out plug-in binding post, binding post passes through the relay and is connected with the servo motor electricity.
2. The power system of claim 1, wherein said onboard power supply outputs 8V-55V, which is stepped down by a transformer to output 5V, 12V or 24V.
3. A power supply system for an AGV according to claim 1, wherein said relay is a time delay relay.
4. The power system of claim 1, wherein said transformer internal circuitry is a DC/DC buck circuit.
5. The power system for an AGV of claim 1, wherein said onboard power supply is provided with a rectifier filter circuit.
6. The power supply system for AGV according to claim 5, wherein in said rectifying and filtering circuit, when the transformer voltage is in the positive half period, diode D1 and diode D3 obtain forward voltage, diode D1 and diode D3 conduct, diode D2 and diode D4 obtain reverse voltage, diode D2 and diode D4 are cut off, and when the diode D1, load resistor Rfz and diode D3 form a power-on loop, the load resistor Rfz forms a half-wave rectified voltage with positive and negative top and bottom; when the voltage of the transformer is in a negative half cycle, the diode D2 and the diode D4 obtain forward voltage, the diode D2 and the diode D4 are conducted, the diode D1 and the diode D3 obtain reverse voltage, the diode D1 and the diode D3 are cut off, and at the moment, the diode D2, the load resistor Rfz and the diode D4 in the circuit form a power-on loop, and the half-wave rectified voltage with positive upper and negative lower parts is formed on the load resistor Rfz.
7. The power system of claim 1, wherein said terminals are connected in parallel by a double row of plug terminals.
8. A power supply system for an AGV according to claim 1, wherein there are 4 transformers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010043586.5A CN111130359A (en) | 2020-01-15 | 2020-01-15 | Power supply system for AGV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010043586.5A CN111130359A (en) | 2020-01-15 | 2020-01-15 | Power supply system for AGV |
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| Publication Number | Publication Date |
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| CN111130359A true CN111130359A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010043586.5A Pending CN111130359A (en) | 2020-01-15 | 2020-01-15 | Power supply system for AGV |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116552281A (en) * | 2023-06-28 | 2023-08-08 | 海能新能源科技(南通)有限公司 | Vehicle-mounted fixed charger of electric forklift and application method thereof |
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| US20160322916A1 (en) * | 2015-04-28 | 2016-11-03 | Delta Electronics (Shanghai) Co., Ltd | Power supply system and power conversion device |
| CN207732467U (en) * | 2017-12-28 | 2018-08-14 | 南京苏立机器人科技有限公司 | A kind of omnidirectional's AGV power supply systems for supporting wireless charging |
| CN208142937U (en) * | 2018-02-28 | 2018-11-23 | 湖南腾众智能电气有限公司 | A kind of contactlessly powered electricity getting device of automated guided vehicle |
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2020
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Patent Citations (5)
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| DE102007003415A1 (en) * | 2007-01-23 | 2008-07-31 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Electrical voltage supply unit i.e. power supply unit, for producing output direct current voltage, has boost or buck converter with output at which intermediate link direct current voltage is produced |
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| US20160322916A1 (en) * | 2015-04-28 | 2016-11-03 | Delta Electronics (Shanghai) Co., Ltd | Power supply system and power conversion device |
| CN207732467U (en) * | 2017-12-28 | 2018-08-14 | 南京苏立机器人科技有限公司 | A kind of omnidirectional's AGV power supply systems for supporting wireless charging |
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| CN116552281A (en) * | 2023-06-28 | 2023-08-08 | 海能新能源科技(南通)有限公司 | Vehicle-mounted fixed charger of electric forklift and application method thereof |
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Application publication date: 20200508 |