CN2770190Y - Vehicular charger for notebook computer - Google Patents
Vehicular charger for notebook computer Download PDFInfo
- Publication number
- CN2770190Y CN2770190Y CN 200420092074 CN200420092074U CN2770190Y CN 2770190 Y CN2770190 Y CN 2770190Y CN 200420092074 CN200420092074 CN 200420092074 CN 200420092074 U CN200420092074 U CN 200420092074U CN 2770190 Y CN2770190 Y CN 2770190Y
- Authority
- CN
- China
- Prior art keywords
- charger
- notebook computer
- voltage stabilizing
- end side
- stabilizing chip
- Prior art date
- 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.)
- Expired - Fee Related
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Classifications
-
- Y02E60/12—
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a vehicular charger for a notebook computer, which comprises a charger casing and an internal circuit, wherein the internal circuit comprises a voltage stabilization chip, and diodes D2, D3 are respectively connected to the input end side and the output end side of the voltage stabilization chip. The voltage stabilization chip adopts the type of MC34063 AAE3104. The input end side of the voltage stabilization chip is connected in series with a resistor R2 and connected in parallel with a resistor R3; the output end side of the voltage stabilization chip is connected in series with a resistor R4 and an inductor G and connected in parallel with a resistor R5. The input end side and the output end side of the voltage stabilization chip are respectively connected in parallel with capacitors C1, C2. The vehicular charger for a notebook computer of the utility model has the advantages of simple and reasonable structure, low manufacture cost and low service wear; the charger can be directly connected between a notebook computer and a vehicular power supply without needing configure a charger special for the notebook computer, so the use is convenient; simultaneously, the charger directly adopts a low voltage direct current supply, so the use is safe and reliable.
Description
Technical field
The utility model relates to a kind of charger, is specially the notebook computer onboard charger.
Background technology
Notebook computer is universal day by day, has need use in automobile many time, and therefore, onboard charger just arises at the historic moment.Existing onboard charger is to be 220 volts of alternating currents by inverter with 12 volts of DC power supply inversions in the automobile, and then fills, powers to it by the notebook computer special charger.This charger is 220 volts of alternating currents owing to wanting inversion, uses dangerous; Power and loss are all very big; Simultaneously,, use trouble owing to still need the notebook special charger, and charger cost height, price height.
Summary of the invention
The utility model solves the problem that existing notebook computer onboard charger exists, and a kind of onboard charger that can directly be connected between automobile power source and the notebook computer is provided.
The utility model is to adopt following technical scheme to realize: the notebook computer onboard charger, comprise charger case and internal circuit, internal circuit comprises a voltage stabilizing chip, is connected with diode D2, D3 respectively at the distolateral and output end of the input of voltage stabilizing chip.Vehicle power is taken from the smoking igniter hole (power supply of conventional inversion formula charger is also taken from the smoking igniter hole in the car) in the car, therefore the structure of charger case is identical with existing onboard charger, and is also identical with existing charger for mobile phone (its power supply is also taken from the smoking igniter hole in the car) shell mechanism.12 volts of power supplys in the car in 14-16 volt (required power supply, the charge value of notes computer), directly provide required power supply to notebook computer through the voltage stabilizing of voltage stabilizing chip.Diode D2, D3 are used to prevent electric current backflow.
For the side that inputs or outputs that prevents the voltage stabilizing chip is short-circuited, cause the damage of voltage stabilizing chip and notebook computer.Distolaterally be in series with resistance R 2 in the input of voltage stabilizing chip, be parallel with resistance R 3; Output end at the voltage stabilizing chip is in series with resistance R 4, inductance G, is parallel with resistance R 5.When the voltage stabilizing chip input or output side when being short-circuited, resistance R 2, R3, R4, R5 and inductance G play current limliting, hypotensive effect, thereby improve dependability, the fail safe of charger.
Be parallel with capacitor C 1, C2 respectively at the distolateral and output end of the input of voltage stabilizing chip.Capacitor C 1, C2 strobe, and improve the stability of charger power supply.
Notebook computer onboard charger described in the utility model, simple and reasonable for structure, low cost of manufacture, service wear is low; Charger can be directly connected between notebook computer and the automobile power source, need not to dispose the notebook computer special charger again, and is easy to use; Simultaneously, charger directly adopts low-voltage DC supply, and is safe in utilization, reliable.
Description of drawings
Fig. 1 is an external structure schematic diagram of the present utility model;
Fig. 2 is the internal circuit schematic diagram;
Embodiment
The notebook computer onboard charger comprises charger case 1 and internal circuit, and internal circuit comprises a voltage stabilizing chip, is connected with diode D2, D3 respectively at the distolateral and output end of the input of voltage stabilizing chip.
The voltage stabilizing chip is selected MC34063A AE3104 model for use, also can select other known model for use.Because the voltage stabilizing chip is existing known products, its model is selected, and the function of each line end of voltage stabilizing chip, effect are known, and the those of ordinary skill how peripheral component is connected electricity field with the voltage stabilizing chip is known and very easy realization.
Distolaterally be in series with resistance R 2 in the input of voltage stabilizing chip, be parallel with resistance R 3; Output end at the voltage stabilizing chip is in series with resistance R 4, inductance G, is parallel with resistance R 5.
Be parallel with capacitor C 1, C2 respectively at the distolateral and output end of the input of voltage stabilizing chip.
At the distolateral fuse R1 that also is serially connected with of the input of voltage stabilizing chip, be parallel with light-emitting diode D1.During charger work, light-emitting diode D1 is luminous, carries out the work indication.
Claims (5)
1, a kind of notebook computer onboard charger comprises charger case (1) and internal circuit, it is characterized by: internal circuit comprises a voltage stabilizing chip, is connected with diode (D2, D3) respectively at the distolateral and output end of the input of voltage stabilizing chip.
2, notebook computer onboard charger as claimed in claim 1 is characterized by: the voltage stabilizing chip is selected MC34063A AE3104 model for use.
3, notebook computer onboard charger as claimed in claim 1 or 2 is characterized by: distolaterally be in series with resistance (R2) in the input of voltage stabilizing chip, be parallel with resistance (R3); Output end at the voltage stabilizing chip is in series with resistance (R4), inductance (G), is parallel with resistance (R5).
4, notebook computer onboard charger as claimed in claim 1 or 2 is characterized by: be parallel with electric capacity (C1, C2) respectively at the distolateral and output end of the input of voltage stabilizing chip.
5, notebook computer onboard charger as claimed in claim 3 is characterized by: be parallel with electric capacity (C1, C2) respectively at the distolateral and output end of the input of voltage stabilizing chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092074 CN2770190Y (en) | 2004-11-12 | 2004-11-12 | Vehicular charger for notebook computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092074 CN2770190Y (en) | 2004-11-12 | 2004-11-12 | Vehicular charger for notebook computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2770190Y true CN2770190Y (en) | 2006-04-05 |
Family
ID=36691237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420092074 Expired - Fee Related CN2770190Y (en) | 2004-11-12 | 2004-11-12 | Vehicular charger for notebook computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2770190Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449789A (en) * | 2015-12-31 | 2016-03-30 | 天津市州易机电科技有限公司 | Vehicle power supply |
| CN111176413A (en) * | 2020-01-10 | 2020-05-19 | 焦作市苍穹新能源有限公司 | Power adapter of notebook computer |
-
2004
- 2004-11-12 CN CN 200420092074 patent/CN2770190Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449789A (en) * | 2015-12-31 | 2016-03-30 | 天津市州易机电科技有限公司 | Vehicle power supply |
| CN111176413A (en) * | 2020-01-10 | 2020-05-19 | 焦作市苍穹新能源有限公司 | Power adapter of notebook computer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |