CN105529835A - Wireless charging system and method for electric forklift, and electric forklift - Google Patents
Wireless charging system and method for electric forklift, and electric forklift Download PDFInfo
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- CN105529835A CN105529835A CN201410770823.2A CN201410770823A CN105529835A CN 105529835 A CN105529835 A CN 105529835A CN 201410770823 A CN201410770823 A CN 201410770823A CN 105529835 A CN105529835 A CN 105529835A
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- electromagnetic wave
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- electric forklift
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Abstract
The invention discloses a wireless charging system and method for an electric forklift, and the electric forklift. The wireless charging system comprises an electromagnetic wave transmitting apparatus and the electric forklift, wherein the electromagnetic wave transmitting apparatus is used for transmitting electromagnetic waves; the electric forklift is provided with an electromagnetic wave receiving apparatus; and the electromagnetic wave receiving apparatus is used for converting the electromagnetic waves into electric energy for supplying power to the electric forklift. According to the embodiment of the wireless charging system, the electric forklift can be used and charged concurrently, so that precious time is saved and working efficiency is improved; the conventional complex charging process is eliminated, and a free operation for the electric forklift by a user is realized to the maximum degree; in addition, the electromagnetic wave transmitting apparatus is small in size and easy to implement, and the electromagnetic wave transmitting apparatus can be mounted in corners, roofs, ground or underground of a warehouse, a port or an airport, so that the design and manufacturing costs of the conventional charging ports, charging cabinets, charging guns and the like are saved; the electric forklift almost can be charged efficiently at any time and any where; and in addition, the appearance design for the electric forklift becomes more flexible and smooth.
Description
Technical field
The present invention relates to technical field of vehicle, particularly relate to a kind of wireless power supply system of electric fork truck, method and electric fork truck.
Background technology
Electri forklift, as present stage the most popular new forms of energy application example, has vast potential for future development.In actual use, due to its particularity, electri forklift is made to be all work in the relatively-stationary regions such as storehouse, airport or harbour usually.Fork truck is longer for service time, and discharge time is shorter, often needs stop off to charge, and the charging interval at least wants more than one hour.And now electri forklift on the market charges and all will be parked in fixed position at every turn, by charging cabinet and the charging gun charging of heaviness, operate loaded down with trivial details effort, has certain danger, and can produce certain wearing and tearing in the course of time, also will take very large place.The problem of these several respects above-mentioned seriously reduces the service efficiency of electri forklift, hinders the fast development of electri forklift.
For simplifying charging process, also can adopt general electromagnetic coupled wireless charging mode, but in this kind of mode, the distance of receiving coil and transmitting coil is very little, can only realize closely charging.Although this also can throw off charging cabinet and the charging gun of fork truck heaviness, fork truck is parked in appointment charge position like clockwork, still can be pretty troublesome, so the charging modes of electri forklift haves much room for improvement.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is the wireless power supply system proposing a kind of electric fork truck, and this system achieves the charging of use limit, electric fork truck limit, save the quality time of user, improve operating efficiency, broken away from the charging process of original complexity, realized the easy manipulation of user to greatest extent.
Second object of the present invention is to propose a kind of electric fork truck.
3rd object of the present invention is a kind of wireless power method proposing electric fork truck.
To achieve these goals, the wireless power supply system of the electric fork truck of first aspect present invention embodiment, comprising: electromagnetic wave launcher, and described electromagnetic wave launcher is used for emitting electromagnetic wave; And electric fork truck, described electric fork truck has electromagnetic receiving device, and described electromagnetic receiving device is for receiving described electromagnetic wave, and described electromagnetic wave to be converted to electric energy be that described electric fork truck is powered.
According to the wireless power supply system of the electric fork truck of the embodiment of the present invention, achieve the charging of use limit, electric fork truck limit, save the quality time of user, improve operating efficiency, break away from the charging process of original complexity, realize the easy manipulation of user to greatest extent, in addition, electromagnetic wave launcher designs small and exquisite and easily realizes, electromagnetic wave launcher can be placed in warehouse, the corner on harbour or airport, roof, ground or underground, break away from original charge port, the design and manufaction cost of charging cabinet and charging gun etc., while achieving intimate " whenever and wherever possible " efficient charging, the appearance design of electricity fork truck also becomes freer, smooth.
To achieve these goals, the electric fork truck of second aspect present invention embodiment, comprising: electromagnetic receiving device, and for receiving the electromagnetic wave that electromagnetic wave launcher is launched, and described electromagnetic wave to be converted to electric energy be that described electric fork truck is powered.
According to the electric fork truck of the embodiment of the present invention, can charge on use limit, limit, save the quality time of user, improve operating efficiency, and broken away from the charging process of original complexity, realize the easy manipulation of user to greatest extent, in addition, broken away from the design and manufaction cost of original charge port, charging cabinet and charging gun etc., while achieving intimate " whenever and wherever possible " efficient charging, the appearance design of electric fork truck also becomes freer, smooth.
To achieve these goals, the wireless power method of the electric fork truck of third aspect present invention embodiment, comprises step: when electric fork truck is in preset charged scope, electromagnetic wave launcher emitting electromagnetic wave; The electromagnetic receiving device of described electric fork truck receives described electromagnetic wave, and described electromagnetic wave to be converted to electric energy be that described electric fork truck is powered.
According to the wireless power method of the electric fork truck of the embodiment of the present invention, achieve the charging of use limit, electric fork truck limit, saved the quality time of user, improve operating efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wireless power supply system of electric according to an embodiment of the invention fork truck;
Fig. 2 is the structural representation of the wireless power supply system of electric fork truck according to the present invention's specific embodiment;
Fig. 3 is the charging scenarios simulation drawing according to the present invention's specific embodiment;
Fig. 4 is the structural representation of electric according to an embodiment of the invention fork truck;
Fig. 5 is the structural representation according to one embodiment of the invention electromagnetic receiving device;
Fig. 6 is the flow chart of the wireless power method of electric according to an embodiment of the invention fork truck.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Electri forklift in correlation technique has inconvenience profit and unsafe factor in charging process.First, fork truck needs to stop charging, and not only fork truck will be parked in fixing charge position, also will wait for that battery just can be full of for a long time, seriously reduces operating efficiency, waste the operating time of operator; Secondly, existing charging cabinet is bulky, and charging gun is also ined succession very long electric wire, need very large place to put, take the expensive real estate of workplace, and along with the increase of charging times, easy outlet dermal abrasion and line fault, easily produce danger during maintenance; Simultaneously, charging process complexity effort, operator need first electri forklift be parked in charging gun can and scope in, then heavy charging gun is picked up, open the charge port of fork truck, like clockwork charging gun is inserted charge port, this series of actions can not meet the comfortable and joyful of Consumer's Experience, and the design of charge port produces discordant impact easily to the overall appearance of electri forklift, also greatly reduces the aesthetics of fork truck.
In order to solve the problem, the present invention proposes a kind of wireless power supply system of electric fork truck, method and electric fork truck.Below with reference to the accompanying drawings the wireless power supply system of the electric fork truck of the embodiment of the present invention, method and electric fork truck are described.
Fig. 1 is the structural representation of the wireless power supply system of electric according to an embodiment of the invention fork truck.As shown in Figure 1, the wireless power supply system of the electric fork truck of the embodiment of the present invention, comprising: electromagnetic wave launcher 100 and electric fork truck 200, and wherein, described electric fork truck 200 has electromagnetic receiving device 210.
Wherein, electromagnetic wave launcher 100 is for emitting electromagnetic wave; Electromagnetic receiving device 210 for receiving electromagnetic wave, and electromagnetic wave is converted to electric energy for electricity fork 200 cars power.
In one embodiment of the invention, as shown in Figure 2, electromagnetic wave launcher 100 comprises: power supply 110; The electromagnetic wave transmitter 120 be connected with power supply; Be connected to the first switch 130 between electric 110 sources and electromagnetic wave transmitter 120; First controller 140, for controlling the first switch 130.
In one embodiment of the invention, as shown in Figure 2, electromagnetic receiving device 210 comprises: battery 220; Electromagnetic wave receiver 230 with serial battery, for receiving electromagnetic wave, and is converted to electric energy by electromagnetic wave, to produce alternating current; The rectifier 240 in parallel with battery 220, for alternating current is converted to direct current, thinks that battery 220 charges; Be connected to the second switch 250 between electromagnetic wave receiver 230 and rectifier 240; Second controller 260 (not shown), for controlling second switch 250.
In one embodiment of the invention, second controller 260 is the master controller of electric fork truck 200, is connected in the master control system of electric fork truck 200.
In an embodiment of the present invention, concerning wireless power transmission, the efficiency of energy transferring is most important.Therefore, the laser of high directivity, concentration of energy is considerable selection with the microbeam with similarity.But laser beam is vulnerable to the scattering of air and dust at space propagation, nonlinear effect is obvious, and power output is little, and therefore microwave becomes first-selected.Microwave power transmission, after focusing on by microwave, directional transmissions is gone out.It can thus be appreciated that electromagnetic wave wireless charging can be used for high-power, long-distance transmissions electric energy.
Below the course of work of the wireless power supply system of the electric fork truck of the embodiment of the present invention is described.
Particularly, as shown in Figure 2, electromagnetic wave transmitter 120 transmits to electromagnetic wave receiver 230, determine electric fork truck 200 orientation, when electric fork truck 200 enters chargeable scope, signal is sent to the first controller 140 and second controller 260 (master controller of electric fork truck) by electromagnetic wave transmitter 120, first controller 140 and second controller 260 send the first switch 130 and second switch 250 (i.e. electronic switch S1 and S2) to control signal, all closed with control S1 and S2, now electromagnetic wave transmitter 120 is that electromagnetic energy sends to electromagnetic wave receiver 230 the electric energy conversion of power supply 110, the electromagnetic energy received is electric energy by electromagnetic wave receiver 230, to produce alternating current in electromagnetic receiving device 210, by rectifier 240, alternating current is converted to direct current again, charge to battery 220.
In an embodiment of the present invention, as shown in Figure 3, electromagnetic wave launcher 100 (as number in the figure 2. shown in) can be placed in electric fork truck 200 and to work the optional position of on-site, electromagnetic wave receiver 230 (as number in the figure is 1. shown) is placed in the space of electric fork truck 200 body bottom, in the use procedure of electric fork truck 200, electromagnetic wave transmitter 120 can launch magnetic energy to electromagnetic wave receiver 230 continually, and electric fork truck 200 also can the use of not short of electricity always.
The wireless power supply system of the electric fork truck of the embodiment of the present invention, achieve the charging of use limit, electric fork truck limit, save the quality time of user, improve operating efficiency, and break away from the charging process of original complexity, realize the easy manipulation of user to greatest extent, in addition, electromagnetic wave launcher designs small and exquisite and easily realizes, electromagnetic wave launcher can be placed in warehouse, the corner on harbour or airport, roof, ground or underground, break away from original charge port, the design and manufaction cost of charging cabinet and charging gun etc., while achieving intimate " whenever and wherever possible " efficient charging, the appearance design of electricity fork truck also becomes freer, smooth.
In order to realize above-described embodiment, the present invention also proposes a kind of electric fork truck.
Fig. 4 is the structural representation of electric according to an embodiment of the invention fork truck.As shown in Figure 4, the electric fork truck 200 of the embodiment of the present invention, comprising: electromagnetic receiving device 210.
Wherein, the electromagnetic wave that electromagnetic receiving device 210 is launched for receiving electromagnetic wave launcher, and electromagnetic wave to be converted to electric energy be that electric fork truck 200 is powered.
In one embodiment of the invention, as shown in Figure 5, electromagnetic receiving device 210 comprises: battery 220; Electromagnetic wave receiver 230 with serial battery, for receiving electromagnetic wave, and is converted to electric energy by electromagnetic wave, to produce alternating current; The rectifier 240 in parallel with battery 220, for alternating current is converted to direct current, thinks that battery 220 charges; Be connected to the second switch 250 between electromagnetic wave receiver 230 and rectifier 240; Second controller 260 (not shown), for controlling second switch 250.
In one embodiment of the invention, second controller 260 is the master controller of electric fork truck 200.
Particularly, the charging process of the electric fork truck of the embodiment of the present invention above the wireless power supply system of electric fork truck embodiment in be illustrated, do not repeat them here.
The electric fork truck of the embodiment of the present invention, can charge on use limit, limit, save the quality time of user, improve operating efficiency, and broken away from the charging process of original complexity, realize the easy manipulation of user to greatest extent, in addition, broken away from the design and manufaction cost of original charge port, charging cabinet and charging gun etc., while achieving intimate " whenever and wherever possible " efficient charging, the appearance design of electric fork truck also becomes freer, smooth.
In order to realize above-described embodiment, the present invention also proposes a kind of wireless power method of electric fork truck.
Fig. 6 is the flow chart of the wireless power method of electric according to an embodiment of the invention fork truck.As shown in Figure 6, the wireless power method of the electric fork truck of the embodiment of the present invention, comprises the following steps:
S1, when electric fork truck is in preset charged scope, electromagnetic wave launcher emitting electromagnetic wave.
S2, the electromagnetic receiving device of electric fork truck receives electromagnetic wave, and electromagnetic wave to be converted to electric energy be that electric fork truck is powered.
The wireless power method of the electric fork truck of the embodiment of the present invention, achieves the charging of use limit, electric fork truck limit, has saved the quality time of user, improve operating efficiency.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this specification, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only memory (ROM), erasablely edit read-only memory (EPROM or flash memory), fiber device, and portable optic disk read-only memory (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the application-specific integrated circuit (ASIC) of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (8)
1. a wireless power supply system for electric fork truck, is characterized in that, comprising:
Electromagnetic wave launcher, described electromagnetic wave launcher is used for emitting electromagnetic wave; And
Electricity fork truck, described electric fork truck has electromagnetic receiving device, and described electromagnetic receiving device is for receiving described electromagnetic wave, and described electromagnetic wave to be converted to electric energy be that described electric fork truck is powered.
2. the wireless power supply system of electric fork truck as claimed in claim 1, is characterized in that, described electromagnetic wave launcher comprises:
Power supply;
The electromagnetic wave transmitter be connected with described power supply;
Be connected to the first switch between described power supply and described electromagnetic wave transmitter;
First controller, for controlling described first switch.
3. the wireless power supply system of electric fork truck as claimed in claim 1, is characterized in that, described electromagnetic receiving device comprises:
Battery;
With the electromagnetic wave receiver of described serial battery, for receiving described electromagnetic wave, and described electromagnetic wave is converted to electric energy, to produce alternating current;
With the rectifier of described cell parallel, for described alternating current is converted to direct current, think that described battery charges;
Be connected to the second switch between described electromagnetic wave receiver and described rectifier;
Second controller, for controlling described second switch.
4. the wireless power supply system of electric fork truck as claimed in claim 3, is characterized in that, described second controller is the master controller of described electric fork truck.
5. an electric fork truck, is characterized in that, comprising:
Electromagnetic receiving device, for receiving the electromagnetic wave that electromagnetic wave launcher is launched, and described electromagnetic wave to be converted to electric energy be that described electric fork truck is powered.
6. electric fork truck as claimed in claim 5, is characterized in that, described electromagnetic receiving device comprises:
Battery;
With the electromagnetic wave receiver of described serial battery, for receiving described electromagnetic wave, and described electromagnetic wave is converted to electric energy, to produce alternating current;
With the rectifier of described cell parallel, for described alternating current is converted to direct current, think that described battery charges;
Be connected to the second switch between described electromagnetic wave receiver and described rectifier;
Second controller, for controlling described second switch.
7. electric fork truck as claimed in claim 6, is characterized in that, described second controller is the master controller of described electric fork truck.
8. a wireless power method for electric fork truck, is characterized in that, comprise the following steps:
When electric fork truck is in preset charged scope, electromagnetic wave launcher emitting electromagnetic wave;
The electromagnetic receiving device of described electric fork truck receives described electromagnetic wave, and described electromagnetic wave to be converted to electric energy be that described electric fork truck is powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410770823.2A CN105529835A (en) | 2014-12-12 | 2014-12-12 | Wireless charging system and method for electric forklift, and electric forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410770823.2A CN105529835A (en) | 2014-12-12 | 2014-12-12 | Wireless charging system and method for electric forklift, and electric forklift |
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| CN105529835A true CN105529835A (en) | 2016-04-27 |
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| CN201410770823.2A Pending CN105529835A (en) | 2014-12-12 | 2014-12-12 | Wireless charging system and method for electric forklift, and electric forklift |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932789A (en) * | 2016-05-10 | 2016-09-07 | 京东方科技集团股份有限公司 | Transformer and power strip |
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| CN102386686A (en) * | 2011-11-08 | 2012-03-21 | 中国矿业大学 | Motion type wireless electric energy transmission system |
| CN102790417A (en) * | 2012-08-08 | 2012-11-21 | 清华大学 | Road-automobile interactive wireless charging system for electric automobile |
| CN203491763U (en) * | 2013-10-09 | 2014-03-19 | 镇江市高等专科学校 | Wireless remote control electric car charger |
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2014
- 2014-12-12 CN CN201410770823.2A patent/CN105529835A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386686A (en) * | 2011-11-08 | 2012-03-21 | 中国矿业大学 | Motion type wireless electric energy transmission system |
| CN102790417A (en) * | 2012-08-08 | 2012-11-21 | 清华大学 | Road-automobile interactive wireless charging system for electric automobile |
| CN203491763U (en) * | 2013-10-09 | 2014-03-19 | 镇江市高等专科学校 | Wireless remote control electric car charger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932789A (en) * | 2016-05-10 | 2016-09-07 | 京东方科技集团股份有限公司 | Transformer and power strip |
| US10644541B2 (en) | 2016-05-10 | 2020-05-05 | Boe Technology Group Co., Ltd. | Transformer and power supply board |
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Application publication date: 20160427 |