CN203537028U - Charging/discharging integrated lithium battery - Google Patents
Charging/discharging integrated lithium battery Download PDFInfo
- Publication number
- CN203537028U CN203537028U CN201320702423.9U CN201320702423U CN203537028U CN 203537028 U CN203537028 U CN 203537028U CN 201320702423 U CN201320702423 U CN 201320702423U CN 203537028 U CN203537028 U CN 203537028U
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- charging
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- lithium battery
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Abstract
The utility model discloses a charging/discharging integrated lithium battery. The charging/discharging integrated lithium battery belongs to the electronic technology field, mainly solves the problems that the charging of the lithium battery in the prior art depends on the external devices, and the realization of the functions is limited by the external conditions, and comprises a shell, an electric core arranged inside the shell, and a protection board circuit connected with the electric core. The protection board circuit is also connected with a charging circuit, and the charging circuit and the protection board circuit are integrated on a circuit board. According to the utility model, the charging circuit and the protection board circuit are integrated on the tiny circuit board, so that the lithium battery which is simple and stable, is low in cost and can be directly connected with an external USB via a charging line to charge is realized. Moreover, the charging/discharging integrated lithium battery is simple in circuit structure, low in product production cost, and is very suitable for the large-scale promotion and use.
Description
Technical field
The utility model relates to a kind of lithium battery, is specifically related to a kind of integrated lithium battery that discharges and recharges, and belongs to electronic technology field.
Background technology
Lithium battery is since coming out, because its remarkable performance has obtained swift and violent development, lithium battery has captured rapidly many fields with the incomparable advantage of other battery, the mobile phone of knowing as everybody, notebook computer, miniature camera etc., and increasing country by this battery applications in military use, and progressively to other product applications development.Lithium battery is broadly divided into lithium metal battery and lithium ion battery, and wherein lithium ion battery is chargeable, and application shows, lithium ion battery is a kind of desirable small-sized green power supply.
On July 11st, 2013, the stewardess of Yi Wei South Airways connects commercial power charged with iPhone5, and calls, suddenly by a burst of strong electric current electricity, fallen, local public security bureau confirms, through forensic identification, the dead dies because of electric shock, and neck has obvious electric shock vestige, so existing mobile phone charging modes must improve to some extent.Lithium battery structure is the form that battery core adds baffle, and wherein cellular li-ion battery charging modes mainly contains following two kinds: (one) is placed in interior of mobile phone by battery, with traveling charger or the precious directly connection of charging mobile phone charging interface, is lithium cell charging; (2) lithium battery is taken out from mobile phone to rear charger/charging treasured or the universal charger charging being equipped with that connect.These two kinds of charging modes, lithium battery all must rely on the object that mobile phone, external charger or universal charger could be realized charging.As user adopts mode () charging, between charge period, user is as used mobile phone can not leave mobile phone charging wire scope, or it is precious, very inconvenient when using mobile phone, to pull charging.As user adopts mode (two) charging; must carry two class article: the one, traveling charger or charging are precious; the 2nd, external charger or universal charger; and external charger/charging is precious, universal charger usually there will be loose contact to cause filling the problem not powering on; the realization of its function has been subject to the restriction of external condition greatly, to user, uses and brings inconvenience.
This type discharges and recharges integrated lithium battery, above-mentioned two kinds of problems that charging modes is limited have well been solved, directly with traveling charger or charging treasured, lithium battery is charged, can not only make user when charging for mobile phone, can leave charging wire scope and use mobile phone, while going out, carry charging device still less, the personal injury of avoiding charging limit, limit to use mobile phone may cause user, simplified is separately the program of lithium cell charging simultaneously, for mobile phone manufacturer reduces the cost of producing external charger.
Utility model content
The purpose of this utility model is to provide a kind of integrated lithium battery that discharges and recharges, and has mainly solved prior art lithium cell charging and has relied on external device, and the realization of function is subject to the problem of external condition restriction.
To achieve these goals, the technical solution adopted in the utility model is as follows:
Discharge and recharge integrated lithium battery, comprise shell, be arranged at the battery core of enclosure, and the baffle circuit being connected with battery core, baffle circuit is also connected with charging circuit, and charging circuit and baffle circuit are integrated on a circuit board; Described baffle circuit comprises protection chip U1, and the resistance R 1, protection chip U2 and the resistance R 2 that are connected with protection chip U1 are respectively connected in the capacitor C 1 between protection chip U1 and protection chip U2, and battery core is connected with baffle circuit with capacitor C 1 by resistance R 1; Described charging circuit comprises the charging chip U3 being connected with baffle circuit by resistance R 1; the capacitor C 2 being connected with charging chip U3 respectively, resistance R 3 and interface chip U4; be connected in the resistance R 4 between charging chip U3 and interface chip U4; one end is connected with interface chip U4, the capacitor C 3 of other end ground connection.
Particularly, described charging circuit also comprises the light-emitting diode DS1 being connected between resistance R 4 and interface chip U4.
Further, described interface chip U4 is also connected with the interface for being connected with external charging line, and described interface is Minusb A type or Minusb Type B or other types interface.
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model is integrated in baffle circuit and charging circuit on a minimum circuit board, realized and a kind ofly simple, inexpensive, stable can be directly by charging wire, have connected the lithium battery that external USB or power supply charge, user needn't carry charger/charging treasured or universal charger again, greatly must facilitate user;
(2) the utility model is controlled light-emitting diode indication charged state by charging chip U3, person easy to use judges its charged state, and select larger resistance R 3, to control the heat radiation power of charging current and whole chip, increased the useful life of lithium battery;
(3) the utility model circuit structure is simple, and the production cost of product is low, not only possesses novelty and also possesses creativeness and practicality, and very suitable large-scale promotion is used.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of baffle circuit of the present utility model and charging circuit.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, and execution mode of the present utility model includes but not limited to the following example.
Embodiment
Discharge and recharge integrated lithium battery, comprise shell, be arranged at the battery core of enclosure; and the baffle circuit being connected with battery core; baffle circuit is also connected with charging circuit, and described charging circuit and baffle circuit are integrated on a circuit board, and circuit board is of a size of 40mm * 5mm.
Particularly, described baffle circuit comprises protection chip U1, the resistance R 1 being connected with protection chip U1 respectively, protection chip U2 and resistance R 2, be connected in the capacitor C 1 between protection chip U1 and protection chip U2, one end of resistance R 1 is connected in 5 ports of protection chip U1, the other end connects respectively battery core and protective circuit, capacitor C 1 one end is connected with 5 ports of protection chip U1, the other end respectively with battery core, 6 ports of 6 ports of protection chip U1 and protection chip U2, 7 ports connect, 3 ports of protection chip U1, 1 port separately with 4 ports of protection chip U2, 5 ports connect, resistance R 2 one end are connected with 2 ports of protection chip U1, other end ground connection, 1 port of protection chip U2 is connected with 8 ports, 2 ports and the equal ground connection of 3 ports.
Described charging circuit comprises the charging chip U3 being connected with resistance R 1 other end, the capacitor C 2 being connected with charging chip U3 respectively, resistance R 3 and interface chip U4, be connected in the resistance R 4 between charging chip U3 and interface chip U4, one end is connected with interface chip U4, the capacitor C 3 of other end ground connection.
Described charging chip U3 is HM4054 or XA4054, adopt in the present embodiment HM4054, resistance R 1 other end corresponding with protection chip U1 link is connected with the bat port of HM4054, capacitor C 2 one end are connected in the bat end of HM4054, other end ground connection, resistance R 4 one end are connected with the chrg port of HM4054, the other end is connected with 1 port of interface chip U4, the VCC port of HM4054 is connected with external power source, and be connected with 1 port of interface chip U4, capacitor C 3 one end are connected with 1 port of interface chip U4, other end ground connection, the equal ground connection of all the other ports of HM4054.
Further, described charging circuit also comprises the light-emitting diode DS1 being connected between resistance R 4 and 1 port of interface chip U4.Described interface chip U4 is also connected with the interface for being connected with external charging line, and described interface is Minusb A type or Minusb Type B or other types interface.
The course of work of the present embodiment is as follows:
During charging, charging circuit and baffle circuit are worked simultaneously, and when battery is charged, the inner NMOS pipe of HM4054 drags down chrg pin, controls light-emitting diode DS1 and shows that charged state indicator light is bright; When charging completes, inner NMOS pipe is high-impedance state, and indicator light goes out.Charging current, from the output of bat pin, provides charging current to battery, controls charging simultaneously, and completing voltage is 4.2V, and inner accurately resitstance voltage divider is drawn from this pin, controls output voltage.Vcc pin connects the positive pole of external USB line or power supply, and to charging circuit power supply, voltage range 4.5V to 6.5V, meets 1 μ F direct-to-ground capacitance C3 to reduce ripple.Charging current programmable device prog pin is monitored charging current, and when chip is during in constant current charge state, the level on this pin is defined as 1V.
When connecting computer standard USB charging inlet, this charging current that discharges and recharges integrated battery can reach nearly 600MA, if battery core adopts 1600mAh battery core, is full of the electric time about three hours.Baffle circuit part uses DW01+8025 Classic couture thinking, here no longer describes in detail.
Baffle circuit working only during electric discharge, charging circuit is not worked.
According to above-described embodiment, just can realize well the utility model.
Claims (4)
1. discharge and recharge integrated lithium battery, comprise shell, be arranged at the battery core of enclosure, and the baffle circuit being connected with battery core, it is characterized in that: baffle circuit is also connected with charging circuit, charging circuit and baffle circuit are integrated on a circuit board; Described baffle circuit comprises protection chip U1, and the resistance R 1, protection chip U2 and the resistance R 2 that are connected with protection chip U1 are respectively connected in the capacitor C 1 between protection chip U1 and protection chip U2, and battery core is connected with baffle circuit with capacitor C 1 by resistance R 1; Described charging circuit comprises the charging chip U3 being connected with baffle circuit by resistance R 1; the capacitor C 2 being connected with charging chip U3 respectively, resistance R 3 and interface chip U4; be connected in the resistance R 4 between charging chip U3 and interface chip U4; one end is connected with interface chip U4, the capacitor C 3 of other end ground connection.
2. according to claim 1ly discharge and recharge integrated lithium battery, it is characterized in that: described charging chip U3 is HM4054 or XA4054.
3. according to claim 2ly discharge and recharge integrated lithium battery, it is characterized in that: described charging circuit also comprises the light-emitting diode DS1 being connected between resistance R 4 and interface chip U4.
4. according to claim 3ly discharge and recharge integrated lithium battery, it is characterized in that: described interface chip U4 is also connected with the interface for being connected with external charging line, described interface is Minusb A type or Minusb Type B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320702423.9U CN203537028U (en) | 2013-11-08 | 2013-11-08 | Charging/discharging integrated lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320702423.9U CN203537028U (en) | 2013-11-08 | 2013-11-08 | Charging/discharging integrated lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203537028U true CN203537028U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320702423.9U Expired - Fee Related CN203537028U (en) | 2013-11-08 | 2013-11-08 | Charging/discharging integrated lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203537028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016206020A1 (en) * | 2015-06-24 | 2016-12-29 | 深圳市迈思普电子有限公司 | Fast charge power bank |
-
2013
- 2013-11-08 CN CN201320702423.9U patent/CN203537028U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016206020A1 (en) * | 2015-06-24 | 2016-12-29 | 深圳市迈思普电子有限公司 | Fast charge power bank |
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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: 20140409 Termination date: 20151108 |
|
| EXPY | Termination of patent right or utility model |