CN101783606B - Power converter with prompting of different loads and automatic selection of overloaded protective current - Google Patents
Power converter with prompting of different loads and automatic selection of overloaded protective current Download PDFInfo
- Publication number
- CN101783606B CN101783606B CN2009101978190A CN200910197819A CN101783606B CN 101783606 B CN101783606 B CN 101783606B CN 2009101978190 A CN2009101978190 A CN 2009101978190A CN 200910197819 A CN200910197819 A CN 200910197819A CN 101783606 B CN101783606 B CN 101783606B
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- China
- Prior art keywords
- power
- supply
- input
- changeover device
- power source
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention provides a power converter with prompting of different loads and automatic selection of overloaded protective current. The power converter comprises a power input end, a power converter and a power output end which are in electric connection in sequence; the power converter comprises a first power source input end and a second power source input end which are arranged at the power input end and a first power source indicating light and a second power source indicating light, wherein the power converter is provided with a power source judging circuit; when the power converter is judged as first power source input, the first power source indicating light and the second power source indicating light are lightened at the same time; and when the power converter is judged as second power source input, only the second power source indicating light is lightened. The power converter provided by the invention has functions of prompting an input power source and automatically selecting overloaded protective current, is convenient for a user to know whether the input power source is a large-power source or a small-power source and automatically select different overloaded protective current.
Description
Technical field
The present invention relates to a kind of power supply changeover device, and be particularly related to a kind of have prompting of different loads and the automatic power supply changeover device of selecting of overload protection electric current.
Background technology
Power supply changeover device; Claim power inverter (Power Inverter) again; Being a kind ofly can convert DC12V, DC24V, DC36V or DC68V direct current into the AC220V identical with civil power or AC110V alternating current, supplying general electrical equipment to use, is a kind of power supply converter for vehicle easily.Power supply changeover device is well received in market, along with the popularity rate of automobile improves gradually, when going out work or out on tours, can connect storage battery with power supply changeover device and drive electrical equipment and various tool work.Therefore, power supply changeover device becomes the transducer that exchanges as the direct current that in moving, uses, and brings a lot of convenience can for people's life, is a kind of standing automobile-used automotive electronics harness articles for use.
The power supply changeover device that power is bigger can be directly connected on the storage battery through the clip line, power output can be that 75W, 100W, 150W, 300W are up to 3000W constant power specification.The output that is connected to household electrical appliance power supply changeover device just can use various electrical equipment convenient as using in automobile at home.Spendable electrical equipment has: mobile phone, notebook computer, DV, camera, illuminating lamp, electric shaver, CD player, game machine, palmtop PC, electric tool, car refrigerator and various suitable tourism, camp, medical first aid electrical equipment etc.
Yet when transducer was connected on the automobile cigarette lighter through cigar tip, because safety requirements, the electric current output and the cigar tip distribution of cigar lighter generally were limited in below the 10A, and the electrical appliance that therefore user is used has Power Limitation.If the maximum input current that transducer allows is bigger; Surpass the restriction of cigar lighter and cigar tip distribution; When the electrical appliance of user's use simultaneously makes the input current of transducer surpass the maximum permissible current of cigar lighter and cigar tip, just might damage cigar lighter or cigar tip distribution.In this case, user easier produces puzzlement.
Summary of the invention
The present invention proposes a kind of have prompting of different loads and the automatic power supply changeover device of selecting of overload protection electric current; It has input power power supply prompt facility and the automatic selection function of overload protection electric current; Make things convenient for the user to know that the power supply of input is large power supply or small-power power; And select different overload protection electric currents automatically, thereby avoid power supply changeover device and electric equipment to damage because of misoperation.
In order to achieve the above object, the present invention proposes a kind of have prompting of different loads and the automatic power supply changeover device of selecting of overload protection electric current, comprises the power input, power supply changeover device and the power output end that electrically connect successively, and said power supply changeover device comprises:
The first power power-supply input and the second power power-supply input are arranged at said power input;
The first power power-supply indicator light and the second power power-supply indicator light,
Wherein, Said power supply changeover device has the power power-supply decision circuitry, when being judged as the input of first power power-supply, lights the first power power-supply indicator light and the second power power-supply indicator light simultaneously; When being judged as the input of second power power-supply, only light the second power power-supply indicator light.
Further, said power supply changeover device has the automatic selection circuit of overload protection electric current, when first power power-supply is imported, selects the overload protection electric current with first power power-supply coupling; When second power power-supply is imported, select overload protection electric current with second power power-supply coupling.
Further, said first power power-supply input input is large power supply.
Further, said second power power-supply input input is small-power power.
Further, the said first power power-supply input is that clip line or terminal line connect.
Further, the said second power power-supply input is that cigar tip connects.
Further, the said first power power-supply indicator light and the second power power-supply indicator light are LED light.
Further, said power output end comprises that wire and plug connects output and is connected output with USB interface.
The power supply changeover device that the present invention proposes with prompting of different loads and the automatic selection of overload protection electric current; Through power power-supply decision circuitry judgement input is large power supply or small-power power; Thereby light different LED lights, guides user comes connecting circuit to use simple, intuitive according to different input power supplys; Has the automatic selection function of overload protection electric current simultaneously; Automatically select different overload protection electric currents, power supply changeover device and the electric equipment having avoided causing because of user's misoperation damage, the protection personal safety as well as the property safety.
Description of drawings
Shown in Figure 1 is the structural representation of the power supply changeover device of preferred embodiment of the present invention.
Shown in Figure 2 is the structural representation of the power input of preferred embodiment of the present invention.
Shown in Figure 3 is the structural representation of the power output end of preferred embodiment of the present invention.
Shown in Figure 4 for the power power-supply decision circuitry schematic diagram of preferred embodiment of the present invention.
Embodiment
In order more to understand technology contents of the present invention, special act specific embodiment also cooperates appended graphic explanation following.
The present invention proposes a kind of have prompting of different loads and the automatic power supply changeover device of selecting of overload protection electric current; It has input power power supply prompt facility; Make things convenient for the user to know that the power supply of input is large power supply or small-power power, thereby avoid power supply changeover device and electric equipment to damage because of misoperation.
Please refer to Fig. 1～Fig. 3; Shown in Figure 1 is the structural representation of the power supply changeover device of preferred embodiment of the present invention; Shown in Figure 2 is the structural representation of the power input of preferred embodiment of the present invention, and shown in Figure 3 is the structural representation of the power output end of preferred embodiment of the present invention.The present invention proposes a kind of power supply changeover device 100, comprises the power input 110, power supply changeover device (not shown) and the power output end 120 that electrically connect successively, and said power supply changeover device 100 comprises:
The first power power-supply input 111 and the second power power-supply input 112 are arranged at said power input 110;
The first power power-supply indicator light 131 and the second power power-supply indicator light 132 can be arranged at said power supply changeover device 100 sides,
Wherein, Said power supply changeover device 100 has the power power-supply decision circuitry, when being judged as the input of first power power-supply, lights the first power power-supply indicator light 131 and the second power power-supply indicator light 132 simultaneously; When being judged as the input of second power power-supply, only light the second power power-supply indicator light 132.
The preferred embodiment according to the present invention, said first power power-supply input 111 and the said second power power-supply input 112 are arranged at the same end of said power supply changeover device 110.What the said first power power-supply input 111 was imported is large power supply, and what the said second power power-supply input 112 was imported is small-power power, and wherein said small-power power is the power supply of rated current less than 10A.The said first power power-supply input 111 is that clip line or terminal line connect, and is used to connect first power power-supply (large power supply), and the said second power power-supply input 112 is used to connect second power power-supply (small-power power) for cigar tip connects.
Further; The said first power power-supply indicator light 131 and the second power power-supply indicator light 132 are LED light; Wherein the first power power-supply indicator light 131 and the second power power-supply indicator light 132 laterally arrange; The first power power-supply indicator light 131 and the second power power-supply indicator light 132 comprise that respectively a plurality of electrical equipment icons are used to point out the user current available electric equipment; The electrical equipment icon of the first power power-supply indicator light 131 for example comprises high-power electric appliance equipment such as electrical drilling machine, electric saw, electric kettle, roaster, and the electrical equipment icon of the second power power-supply indicator light 132 for example comprises small-power electrical equipment equipment such as camera, notebook computer, player, mobile phone.
Further; Said power output end 120 comprises that wire and plug connects output 121 and is connected output 122 with USB interface; Said wire and plug connects output 121 and is used to connect the electric equipment with wire and plug, and said USB interface connects output 122 and is used for connecting the electric equipment with USB interface through the USB connecting line.
Please refer to Fig. 4 again, shown in Figure 4ly be the power power-supply decision circuitry schematic diagram of preferred embodiment of the present invention.Said power supply changeover device has the power power-supply decision circuitry; When being judged as the input of first power power-supply; Light the first power power-supply indicator light and the second power power-supply indicator light simultaneously, when being judged as the input of second power power-supply, only light the second power power-supply indicator light.When the first power power-supply input, 111 input large power supplies; Diode D1 oppositely flows to the light-emitting diode D2 of the first power power-supply indicator light 131 by, electric current through resistance R 3, makes that light-emitting diode D2 conducting is luminous; Prompting user high-power electric appliance equipment this moment can use; Electric current also flows to the light-emitting diode D3 of the second power power-supply indicator light 132 through resistance R 3, make that light-emitting diode D3 conducting is luminous, and prompting user small-power electrical equipment this moment equipment can use.This moment, the user can use high-power electric appliance equipment and small-power electrical equipment equipment simultaneously.
When the second power power-supply input, 112 input small-power powers; Diode D1 conducting, the circuit that resistance R 1, R2, R3 and triode Q1 form drags down the voltage that A is ordered, thereby makes the light-emitting diode D2 of the power power-supply indicator light 131 of winning can not conducting; Therefore can luminously not light; Electric current directly flows to the light-emitting diode D3 of the second power power-supply indicator light 132 through resistance R 3, make that light-emitting diode D3 conducting is luminous, and prompting user small-power electrical equipment this moment equipment can use.Therefore, said power supply changeover device prompting this moment user only can use small-power electrical equipment equipment, and can not use high-power electric appliance equipment.
With reference to figure 4, said power supply changeover device has the automatic selection circuit 200 of overload protection electric current, and it comprises resistance R 5, R6, R7, R8, R9, R10 and triode Q2 and junction field operational amplifier IC1A.When first power power-supply was imported, the automatic selection circuit 200 of overload protection electric current was selected the overload protection electric current with first power power-supply coupling; When second power power-supply was imported, the automatic selection circuit 200 of overload protection electric current was selected the overload protection electric current with second power power-supply coupling.
In sum, the power supply changeover device that the present invention proposes, through power power-supply decision circuitry judgement input is large power supply or small-power power; Thereby light different LED lights, guides user comes connecting circuit to use simple, intuitive according to different input power supplys; Has the automatic selection function of overload protection electric current simultaneously; Automatically select different overload protection electric currents, power supply changeover device and the electric equipment having avoided causing because of user's misoperation damage, the protection personal safety as well as the property safety.
Though the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.Have common knowledge the knowledgeable in the technical field under the present invention, do not breaking away from the spirit and scope of the present invention, when doing various changes and retouching.Therefore, protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (7)
1. one kind has prompting of different loads and the automatic power supply changeover device of selecting of overload protection electric current, comprises the power input, power supply changeover device and the power output end that electrically connect successively, it is characterized in that said power supply changeover device comprises:
The first power power-supply input and the second power power-supply input are arranged at said power input;
The first power power-supply indicator light and the second power power-supply indicator light,
Wherein, Said power supply changeover device has the power power-supply decision circuitry, when being judged as the input of first power power-supply, lights the first power power-supply indicator light and the second power power-supply indicator light simultaneously; When being judged as the input of second power power-supply, only light the second power power-supply indicator light; Wherein,
Said power supply changeover device has the automatic selection circuit of overload protection electric current, when first power power-supply is imported, selects the overload protection electric current with first power power-supply coupling; When second power power-supply is imported, select overload protection electric current with second power power-supply coupling.
2. power supply changeover device according to claim 1 is characterized in that, what the said first power power-supply input was imported is large power supply.
3. power supply changeover device according to claim 1 is characterized in that, what the said second power power-supply input was imported is small-power power.
4. power supply changeover device according to claim 1 is characterized in that, the said first power power-supply input is that clip line or terminal line connect.
5. power supply changeover device according to claim 1 is characterized in that, the said second power power-supply input is that cigar tip connects.
6. power supply changeover device according to claim 1 is characterized in that, the said first power power-supply indicator light and the second power power-supply indicator light are LED light.
7. power supply changeover device according to claim 1 is characterized in that, said power output end comprises that wire and plug connects output and is connected output with USB interface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101978190A CN101783606B (en) | 2009-10-28 | 2009-10-28 | Power converter with prompting of different loads and automatic selection of overloaded protective current |
| PCT/CN2009/001334 WO2011050502A1 (en) | 2009-10-28 | 2009-11-26 | Power converter with indication of different loads and automatic selection of overload protection currents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101978190A CN101783606B (en) | 2009-10-28 | 2009-10-28 | Power converter with prompting of different loads and automatic selection of overloaded protective current |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101783606A CN101783606A (en) | 2010-07-21 |
| CN101783606B true CN101783606B (en) | 2012-07-11 |
Family
ID=42523456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101978190A Active CN101783606B (en) | 2009-10-28 | 2009-10-28 | Power converter with prompting of different loads and automatic selection of overloaded protective current |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101783606B (en) |
| WO (1) | WO2011050502A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101975393B1 (en) * | 2013-04-18 | 2019-05-07 | 삼성에스디아이 주식회사 | External battery |
| CN108132411B (en) * | 2017-12-29 | 2023-10-27 | 重庆市灵龙自动化设备有限公司 | Efficient detector for docking station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967133A (en) * | 1974-02-14 | 1976-06-29 | Bokern James F | Power supply means |
| CA2038838A1 (en) * | 1991-03-22 | 1992-09-23 | Reza H. Shah | Portable storage battery charging system |
| CN101009461A (en) * | 2005-12-14 | 2007-08-01 | 金桥科技股份有限公司 | Optional input power and product power supply, and its method |
| CN201550039U (en) * | 2009-10-28 | 2010-08-11 | 纽福克斯光电科技（上海）有限公司 | Power converter capable of distinguishing different powers |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2109577U (en) * | 1991-08-09 | 1992-07-08 | 蒋志君 | Voltage moniter for motor vehicle |
| JP3205481B2 (en) * | 1995-04-28 | 2001-09-04 | ホーチキ株式会社 | Power supply monitoring circuit of disaster prevention monitoring device |
| JP4281941B2 (en) * | 2002-06-06 | 2009-06-17 | 河村電器産業株式会社 | Breaker voltage display |
-
2009
- 2009-10-28 CN CN2009101978190A patent/CN101783606B/en active Active
- 2009-11-26 WO PCT/CN2009/001334 patent/WO2011050502A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967133A (en) * | 1974-02-14 | 1976-06-29 | Bokern James F | Power supply means |
| CA2038838A1 (en) * | 1991-03-22 | 1992-09-23 | Reza H. Shah | Portable storage battery charging system |
| CN101009461A (en) * | 2005-12-14 | 2007-08-01 | 金桥科技股份有限公司 | Optional input power and product power supply, and its method |
| CN201550039U (en) * | 2009-10-28 | 2010-08-11 | 纽福克斯光电科技（上海）有限公司 | Power converter capable of distinguishing different powers |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011050502A1 (en) | 2011-05-05 |
| CN101783606A (en) | 2010-07-21 |
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