CN202663160U - Charger for intelligent vehicle-mounted terminal - Google Patents
Charger for intelligent vehicle-mounted terminal Download PDFInfo
- Publication number
- CN202663160U CN202663160U CN 201220369623 CN201220369623U CN202663160U CN 202663160 U CN202663160 U CN 202663160U CN 201220369623 CN201220369623 CN 201220369623 CN 201220369623 U CN201220369623 U CN 201220369623U CN 202663160 U CN202663160 U CN 202663160U
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- CN
- China
- Prior art keywords
- charger
- rechargeable battery
- mounted terminal
- charging chip
- intelligent vehicle
- 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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a charger for an intelligent vehicle-mounted terminal. The charger comprises a step-down transformer, a charger body, a charging connector, a charging chip and a rechargeable battery, wherein the output end of the step-down transformer is connected to the input end of the charger body, the output end of the charger body is connected to the input end of the charging connector, the output end of the charging connector is connected to the input end of the charging chip, and the output end of the charging chip is connected to an adjustable resistor and then is connected to the input end of the rechargeable battery. During working, the input end of the charger body is connected to a charging power supply, according to the voltage of the charging power supply, the adjustable resistor is adjusted, the voltage of the charging chip, which flows to the rechargeable battery, is controlled, then the voltage of the rechargeable battery is kept at a certain range, and the vehicle-mounted terminal is protected.
Description
Technical field
The utility model relates to a kind of charging device, specifically the charger of intelligent vehicle mounted terminal.
Background technology
Intelligent transportation system, be effective applications such as information technology, data communication technology, Electronic transducer technology and Computer Processing technology with the advanced person in whole traffic control system, it has the advantages such as real-time, accurate, efficient.
Intelligent vehicle mounted terminal is as the part of intelligent transportation system, it is mounted on the vehicle, to various informations and the storage of vehicle, be connected with other equipment in the car by the CAN bus, have the mobile unit of GPS location, GPRS wireless data transmission function.Intelligent vehicle mounted terminal is to fail safe, the very large effect of having improved service quality of management, personnel and the vehicle of standard driver's behavior, car operation company.
Intelligent vehicle mounted terminal is as electronic equipment, need to power to it, be provided with rechargeable battery in the existing intelligent vehicle mounted terminal, can be in advance the rechargeable battery charging, yet, because intelligent vehicle mounted terminal often is applied in the special environment, condition of work is more abominable, and it must adopt high performance rechargeable battery, rechargeable battery requires high to charging voltage, when being subject to charging than high power supply voltage, rechargeable battery is fragile, and can exert an influence to intelligent vehicle mounted terminal.When charging for fear of rechargeable battery intelligent vehicle mounted terminal is exerted an influence, also there are some intelligent vehicle mounted terminals to adopt the power supply in the car directly to power, yet when the power supply energy supply in vehicle was not enough, intelligent vehicle mounted terminal can not be worked, thereby can not make indication for the driver.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and the charger of the intelligent vehicle mounted terminal that a kind of charging voltage that can make intelligent vehicle mounted terminal is maintained within a certain range is provided.
The purpose of this utility model is achieved through the following technical solutions: the charger of intelligent vehicle mounted terminal, comprise step-down transformer, charger, charge connector, charging chip and rechargeable battery, the output of described step-down transformer is connected with the input of charger, the output of described charger is connected with the input of charge connector, the output of described charge connector is connected with the input of charging chip, and the output of described charging chip is connected with the input of rechargeable battery after connecting an adjustable resistance.Charging chip of the present utility model and rechargeable battery are arranged in the intelligent vehicle mounted terminal.
Be connected with a magnetic bead and a TVS pipe on the connection line of described charge connector and charging chip, described magnetic bead is connected in series on the connection line of charge connector and charging chip, described TVS manages an end and charge connector is connected connection line and is connected its other end ground connection with charging chip.The TVS pipe; it is the transient voltage twin zener dioder; it is for the custom-designed device of electrostatic interference; it is for moment extra-high pressure (KV level); the static discharge of minimum electric current (uA or even nA level); can be in the utmost point over the ground conducting in the short time, thus reach the purpose of electrostatic interference being introduced ground, protected intelligent vehicle mounted terminal.
As preferably, described rechargeable battery is lithium battery.
The utility model compared with prior art has the following advantages and beneficial effect: be serially connected with an adjustable resistance between the output of charging chip of the present utility model and the input of rechargeable battery, for different power source charges the time, the utility model can be maintained within a certain range the charging voltage to rechargeable battery by regulating adjustable resistance all the time, thereby when avoiding rechargeable battery to be subject to larger charging voltage charging intelligent vehicle mounted terminal is exerted an influence; The input of charger of the present utility model is connected with step-down transformer, when the utility model is worked, step-down transformer is used for connecting supply voltage, and voltage dropped in the suitable scope, be convenient to adjustable resistance voltage is regulated, thereby avoid the utility model to damage because of overtension.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is further described, but execution mode of the present utility model is not limited to this.
Embodiment:
As shown in Figure 1, the charger of intelligent vehicle mounted terminal, comprise step-down transformer, charger, charge connector, charging chip and rechargeable battery, wherein, charging chip and rechargeable battery are arranged in the intelligent vehicle mounted terminal, rechargeable battery is the intelligent vehicle mounted terminal power supply, the output of step-down transformer is connected with the input of charger, the output of charger is connected with the input of charge connector, the output of charge connector is connected with the input of charging chip, and the output of charging chip is connected with the input of rechargeable battery after connecting an adjustable resistance.With respect to Ni-MH battery, the remarkable advantages such as lithium battery has the operating voltage height, energy density is large, self-discharge rate is low, memory-less effect, therefore, rechargeable battery is preferably lithium battery in the present embodiment.
Be connected with a magnetic bead and a TVS pipe on the connection line of charge connector and charging chip, magnetic bead is connected in series on the connection line of charge connector and charging chip, TVS manages an end and charge connector is connected connection line and is connected its other end ground connection with charging chip.Magnetic bead is similar to inductance, during fabrication, sets its signal for certain frequency range and has higher impedance, and its high-frequency noise and spike that is used for suppressing on the power line disturbs, and also has the ability that absorbs electrostatic pulse.The TVS pipe, it is the transient voltage twin zener dioder, it is a kind of new product that grows up on voltage-stabiliser tube technique basis, when the high energy impact events of moment is stood at TVS pipe two ends, it can make with high speed its impedance suddenly reduce, absorb simultaneously a large electric current, with the voltage clamp between its two ends on a predetermined numerical value, thereby the circuit element of guaranteeing the back is avoided the high-octane impact of transient state and is damaged.
The charger of intelligent vehicle mounted terminal is when work, the input of step-down transformer is connected with charge power supply, size according to charge power supply voltage, can control the charging voltage that charging chip leads to rechargeable battery by regulating adjustable resistance, thereby guarantee that the voltage that leads to rechargeable battery is maintained within a certain range.
As mentioned above, then can well realize the utility model.
Claims (3)
1. the charger of intelligent vehicle mounted terminal, it is characterized in that: comprise step-down transformer, charger, charge connector, charging chip and rechargeable battery, the output of described step-down transformer is connected with the input of charger, the output of described charger is connected with the input of charge connector, the output of described charge connector is connected with the input of charging chip, and the output of described charging chip is connected with the input of rechargeable battery after connecting an adjustable resistance.
2. the charger of intelligent vehicle mounted terminal according to claim 1, it is characterized in that: be connected with a magnetic bead and a TVS pipe on the connection line of described charge connector and charging chip, described magnetic bead is connected in series on the connection line of charge connector and charging chip, described TVS manages an end and charge connector is connected connection line and is connected its other end ground connection with charging chip.
3. the charger of intelligent vehicle mounted terminal according to claim 1 and 2, it is characterized in that: described rechargeable battery is lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369623 CN202663160U (en) | 2012-07-30 | 2012-07-30 | Charger for intelligent vehicle-mounted terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369623 CN202663160U (en) | 2012-07-30 | 2012-07-30 | Charger for intelligent vehicle-mounted terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202663160U true CN202663160U (en) | 2013-01-09 |
Family
ID=47458039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220369623 Expired - Fee Related CN202663160U (en) | 2012-07-30 | 2012-07-30 | Charger for intelligent vehicle-mounted terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202663160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051007A (en) * | 2011-10-15 | 2013-04-17 | 成都锐奕信息技术有限公司 | Charger of intelligent vehicle-mounted terminal |
| CN103199393A (en) * | 2013-04-17 | 2013-07-10 | 歌尔声学股份有限公司 | Universal serial bus (USB) connecting device and electronic product |
-
2012
- 2012-07-30 CN CN 201220369623 patent/CN202663160U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051007A (en) * | 2011-10-15 | 2013-04-17 | 成都锐奕信息技术有限公司 | Charger of intelligent vehicle-mounted terminal |
| CN103199393A (en) * | 2013-04-17 | 2013-07-10 | 歌尔声学股份有限公司 | Universal serial bus (USB) connecting device and electronic product |
| CN103199393B (en) * | 2013-04-17 | 2015-05-13 | 歌尔声学股份有限公司 | Universal serial bus (USB) connecting device and electronic product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20150730 |
|
| EXPY | Termination of patent right or utility model |