CN102923076A - Small vehicle-mounted power supply - Google Patents
Small vehicle-mounted power supply Download PDFInfo
- Publication number
- CN102923076A CN102923076A CN2012104148704A CN201210414870A CN102923076A CN 102923076 A CN102923076 A CN 102923076A CN 2012104148704 A CN2012104148704 A CN 2012104148704A CN 201210414870 A CN201210414870 A CN 201210414870A CN 102923076 A CN102923076 A CN 102923076A
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- Prior art keywords
- circuit
- power supply
- power
- voltage
- small size
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Inverter Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a small vehicle-mounted power supply. The small vehicle-mounted power supply comprises a power supply housing, a storage battery and a power circuit; the storage battery and the power circuit are arranged in the power housing and are electrically connected; the power circuit comprises an input end, a switch voltage stabilizing circuit, a filter rectifier circuit, an output end and a protection circuit which are connected in sequence, wherein the protection circuit is connected between the input end and the output end; and the protection circuit comprises an input undervoltage protection circuit, an input reverse-connection protection circuit, an overheat protection circuit and a short circuit protection circuit. By adopting the mode mentioned above, the small vehicle-mounted power supply can ensure the stability of work, and is high in self-defensive capability and stable in work.
Description
Technical field
The present invention relates to vehicle electric field, particularly relate to a kind of small size power supply.
Background technology
The vehicle power storage battery; it is the public power of vehicle electronic device and other many vehicle mounted electrical apparatus; the work of these electronic machines and electrical equipment all leans on it that the energy is provided in same car; in this specific environment for use; owing to exist a large amount of such as starter motor; air conditioner motor; multiple light fixture; the electrical equipment of the perceptual electronics package such as Windshield Wiper; when having many people again the electronic machine with inverter to be inserted into the socket of automobile power source often just the blowout of power supply; cause power supply to work; if these power supplys are in the situation of unprotected circuit or protective circuit deficiency; thereby probably cause inverter heating to cause fire, all can work the mischief to user's lives and properties.
Summary of the invention
The technical matters that the present invention mainly solves provides a kind of small size power supply, can guarantee working stability, and self-protection ability is strong, working stability.
For solving the problems of the technologies described above; the technical scheme that the present invention adopts is: a kind of small size power supply is provided; comprise: power shell, storage battery and power circuit; described storage battery and power circuit are arranged on the inner and electric connection of power shell; described power circuit comprise successively input end, switch voltage-stabilizing circuit, filter rectifier, the mouth that connects and be connected to input end and mouth between protective circuit, described protective circuit comprises input undervoltage protection circuit, input reverse-connection protective circuit, overheating protection circuit and short-circuit protection circuit.
In a preferred embodiment of the present invention, described switch voltage-stabilizing circuit comprises switch circuit, pulse-width modulation circuit, reference voltage circuit and sawtooth voltage circuit.
In a preferred embodiment of the present invention, described filter rectifier comprises bridge rectifier circuit and filter circuit.
In a preferred embodiment of the present invention, be parallel with antijamming blackout on the described mouth, described antijamming blackout comprises that inverse voltage suppresses circuit, absorbs voltage setting circuit and absorbs the harassing and wrecking pulse voltage circuit.
In a preferred embodiment of the present invention, described power shell is metal screen case.
The invention has the beneficial effects as follows: small size power supply of the present invention can guarantee working stability, and self-protection ability is strong, working stability.
Description of drawings
Fig. 1 is the structural representation of small size power supply one preferred embodiment of the present invention;
The mark of each parts is as follows in the accompanying drawing: 1, power shell, 2, storage battery, 3, power circuit; 4, input end; 5, switch voltage-stabilizing circuit, 6, filter rectifier, 7, mouth; 8, protective circuit; 9, under-voltage protecting circuit, 10, the input reverse-connection protective circuit, 11, overheating protection circuit; 12, short-circuit protection circuit, 13, antijamming blackout.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
See also Fig. 1; a kind of small size power supply; comprise: power shell 1, storage battery 2 and power circuit 3; described storage battery 2 and power circuit 3 are arranged on power shell 1 inner and electric connection; described power circuit 3 comprise successively input end 4, switch voltage-stabilizing circuit 5, filter rectifier 6, the mouth 7 that connects and be connected to input end 4 and mouth 7 between protective circuit 8, described protective circuit 8 comprises input undervoltage protection circuit 9, input reverse-connection protective circuit 10, overheating protection circuit 11 and short-circuit protection circuit 12.
In addition, described switch voltage-stabilizing circuit 5 comprises switch circuit, pulse-width modulation circuit, reference voltage circuit and sawtooth voltage circuit.
In addition, described filter rectifier 6 comprises bridge rectifier circuit and filter circuit.
In addition, be parallel with antijamming blackout 13 on the described mouth 7, described antijamming blackout 13 comprises that inverse voltage suppresses circuit, absorbs voltage setting circuit and absorbs the harassing and wrecking pulse voltage circuit.
In addition, described power shell 1 is metal screen case.
Be different from prior art, small size power supply of the present invention can guarantee working stability, and self-protection ability is strong, working stability.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification sheets of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. small size power supply; it is characterized in that; comprise: power shell, storage battery and power circuit; described storage battery and power circuit are arranged on the inner and electric connection of power shell; described power circuit comprise successively input end, switch voltage-stabilizing circuit, filter rectifier, the mouth that connects and be connected to input end and mouth between protective circuit, described protective circuit comprises input undervoltage protection circuit, input reverse-connection protective circuit, overheating protection circuit and short-circuit protection circuit.
2. small size power supply according to claim 1 is characterized in that, described switch voltage-stabilizing circuit comprises switch circuit, pulse-width modulation circuit, reference voltage circuit and sawtooth voltage circuit.
3. small size power supply according to claim 1 is characterized in that, described filter rectifier comprises bridge rectifier circuit and filter circuit.
4. small size power supply according to claim 1 is characterized in that, is parallel with antijamming blackout on the described mouth, and described antijamming blackout comprises that inverse voltage suppresses circuit, absorbs voltage setting circuit and absorbs the harassing and wrecking pulse voltage circuit.
5. small size power supply according to claim 1 is characterized in that, described power shell is metal screen case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104148704A CN102923076A (en) | 2012-10-26 | 2012-10-26 | Small vehicle-mounted power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104148704A CN102923076A (en) | 2012-10-26 | 2012-10-26 | Small vehicle-mounted power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102923076A true CN102923076A (en) | 2013-02-13 |
Family
ID=47638057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104148704A Pending CN102923076A (en) | 2012-10-26 | 2012-10-26 | Small vehicle-mounted power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102923076A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022007708A1 (en) * | 2020-07-09 | 2022-01-13 | 比亚迪股份有限公司 | Vehicle-mounted power supply apparatus and vehicle having same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0709944A1 (en) * | 1994-10-31 | 1996-05-01 | STMicroelectronics S.r.l. | Charge voltage regulator for a battery |
| CN201127008Y (en) * | 2007-08-10 | 2008-10-01 | 山东正晨科技有限公司 | Vehicle mounted portable power supply inverter |
| CN201234209Y (en) * | 2008-06-27 | 2009-05-06 | 吴恩明 | Novel switch power supply |
| CN201312124Y (en) * | 2008-12-09 | 2009-09-16 | 黄敬党 | Protection circuit for preventing accumulator charging and reversal connection |
| CN202502370U (en) * | 2012-03-20 | 2012-10-24 | 深圳霸特尔防爆科技有限公司 | Power supply switching control circuit of explosion-proof storage battery tractor |
| CN202863179U (en) * | 2012-10-26 | 2013-04-10 | 常州能动电子科技有限公司 | Small size vehicle power supply |
-
2012
- 2012-10-26 CN CN2012104148704A patent/CN102923076A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0709944A1 (en) * | 1994-10-31 | 1996-05-01 | STMicroelectronics S.r.l. | Charge voltage regulator for a battery |
| CN201127008Y (en) * | 2007-08-10 | 2008-10-01 | 山东正晨科技有限公司 | Vehicle mounted portable power supply inverter |
| CN201234209Y (en) * | 2008-06-27 | 2009-05-06 | 吴恩明 | Novel switch power supply |
| CN201312124Y (en) * | 2008-12-09 | 2009-09-16 | 黄敬党 | Protection circuit for preventing accumulator charging and reversal connection |
| CN202502370U (en) * | 2012-03-20 | 2012-10-24 | 深圳霸特尔防爆科技有限公司 | Power supply switching control circuit of explosion-proof storage battery tractor |
| CN202863179U (en) * | 2012-10-26 | 2013-04-10 | 常州能动电子科技有限公司 | Small size vehicle power supply |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022007708A1 (en) * | 2020-07-09 | 2022-01-13 | 比亚迪股份有限公司 | Vehicle-mounted power supply apparatus and vehicle having same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |