CN105790331A - Rapid charger of lithium ion battery - Google Patents
Rapid charger of lithium ion battery Download PDFInfo
- Publication number
- CN105790331A CN105790331A CN201410816027.8A CN201410816027A CN105790331A CN 105790331 A CN105790331 A CN 105790331A CN 201410816027 A CN201410816027 A CN 201410816027A CN 105790331 A CN105790331 A CN 105790331A
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- China
- Prior art keywords
- circuit
- charging
- self
- casing
- rechargeable battery
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a rapid charger of a lithium ion battery. The rapid charger comprises a case, a rechargeable battery, a charging circuit, a control circuit and a charging self-detection circuit, wherein a groove is formed in the case and is used for placing the rechargeable battery, the rechargeable battery, the charging circuit, the control circuit and the charging self-detection circuit are arranged in the case, the charging circuit is connected with the rechargeable battery and is used for charging the rechargeable battery, the control circuit is connected with the charging circuit and is used for controlling the working condition of the charging circuit, and the charging self-detection circuit is connected with the charging circuit and is used for detecting whether a fault occurs in a circuit working parameter of the charging circuit or not. In the rapid charger, the charging self-detection circuit is used for on-line detection of the working condition of the charging circuit, an indication signal is timely given when a circuit fault occurs in the charger, and a user can be conveniently reminded to take a corresponding measure on the charger.
Description
Technical field
The present invention relates to a kind of charger, particularly to a kind of lithium ion battery quick charger.
Background technology
When using lithium battery, it has been found that battery electric quantity is inadequate, it is necessary to battery is charged, and charging circuit is the core component of the normal operation of charger, and therefore, it is particularly significant whether the operating circuit parameters of on-line checking charging circuit is in normal operating conditions.It is thus desirable to a kind of charger that charging circuit can be carried out self-inspection.It is thus desirable to a kind of lithium ion battery quick charger.
Summary of the invention
In view of this, the technical problem to be solved is to provide a kind of lithium ion battery quick charger.
The object of the present invention is achieved like this:
A kind of lithium ion battery quick charger provided by the invention, including casing, rechargeable battery, charging circuit, control circuit and charging self-checking circuit；
Described casing is provided with the groove placing rechargeable battery；
Described charging circuit, charging circuit, control circuit and charging self-checking circuit are arranged in casing；
Described charging circuit is connected with rechargeable battery for rechargeable battery is charged；
Described control circuit is connected the duty for controlling charging circuit with charging circuit；
Described charging self-checking circuit is connected for whether the circuit running parameter detecting charging circuit exists fault with charging circuit；
Further, described charging self-checking circuit includes electric voltage observation circuit, voltage parameter comparison circuit and display lamp；
Described electric voltage observation circuit, is used for obtaining circuit actual parameter value；
Described voltage parameter comparison circuit, for comparison circuit actual parameter with normal circuit operation parameter the order obtaining control display lamp；
Described display lamp, is used for receiving the order of circuit parameter process circuit output connection or disconnecting the circuit of display lamp；
Further, described charging self-checking circuit also include by compressing switch, switch lever and elastic washer；
Described arrange in casing by compressing switch；Described by compressing switch and casing junction is provided with elastic washer；Described by compressing switch for passing through to press down the on off operating mode controlling charging self-checking circuit；Described by compressing switch and being provided with preset clearance between casing, the gap width of described preset clearance is slightly less than the amount of elastic deformation of elastic washer.
The beneficial effects of the present invention is: the present invention adopts the duty of charging self-checking circuit on-line checking charging circuit, it is ensured that can send indication signal when fault occurs in charger in time, can conveniently remind user that charger is taken appropriate measures.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
The lithium ion battery quick charger schematic diagram that Fig. 1 provides for the embodiment of the present invention；
The charging circuit figure that Fig. 2 provides for the embodiment of the present invention.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.Should be appreciated that preferred embodiment is only for illustrating the present invention, rather than in order to limit the scope of the invention.
As it can be seen, a kind of lithium ion battery quick charger provided by the invention, including casing, rechargeable battery, charging circuit, control circuit and charging self-checking circuit；
Described casing is provided with the groove placing rechargeable battery；
Described charging circuit, charging circuit, control circuit and charging self-checking circuit are arranged in casing；
Described charging circuit is connected with rechargeable battery for rechargeable battery is charged；
Described control circuit is connected the duty for controlling charging circuit with charging circuit；
Described charging self-checking circuit is connected for whether the circuit running parameter detecting charging circuit exists fault with charging circuit；
Described charging self-checking circuit includes electric voltage observation circuit, voltage parameter comparison circuit and display lamp；
Described electric voltage observation circuit, is used for obtaining circuit actual parameter value；
Described voltage parameter comparison circuit, for comparison circuit actual parameter with normal circuit operation parameter the order obtaining control display lamp；
Described display lamp, is used for receiving the order of circuit parameter process circuit output connection or disconnecting the circuit of display lamp；
Described charging self-checking circuit also includes by compressing switch, switch lever and elastic washer；
Described arrange in casing by compressing switch；Described by compressing switch and casing junction is provided with elastic washer；Described by compressing switch for passing through to press down the on off operating mode controlling charging self-checking circuit；Described by compressing switch and being provided with preset clearance between casing, the gap width of described preset clearance is slightly less than the amount of elastic deformation of elastic washer.
Adopting a negative temperature coefficient resister to monitor the temperature of battery in the charging circuit that the present embodiment provides, charging self-checking circuit is by being monitored judging whether charging circuit breaks down to the voltage at negative temperature coefficient resister two ends.
The charging circuit that the present embodiment provides need not detect voltage change ratio, and charger needs accurate 4.2V ± 50mV guarantee of power invariable power charging, and specific works principle is as follows:
Controllable voltage source VBATT built-in for unit charger for lithium ion battery MAX8601, can provide 4.2V ± 0.021V at+25 DEG C, or provide the precision of 4.2V ± 0.034V at 40 DEG C-85 DEG C.When connected by VBATT charge to lithium ion battery time, charger can keep constant output, and non-essential resistance (connects SETI pin) and external capacitive (connecing CT pin) can set that charging current and internal clocking.This charger monitors the temperature of battery also by a negative temperature coefficient resister.The major advantage of MAX8601 charger can be by external adapter or USB port charges the battery.USB port can provide 100mA, 500mA electric current according to arranging of USEL pin.This chip can automatically select external power source (primary adapter or USB).If two power supplys exist simultaneously, it can select primary adapter to be charged.Any one power supply all allows for providing the voltage of minimum 4.5V.DS2711/DS2712 and MAX8601 is unit charger, has multiple control function (voltage, electric current, temperature, calendar scheduling), had not both needed microcontrollers monitor, it is not required that power surge is protected, and provides outside switching clear, simple.
What finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, although by referring to the preferred embodiments of the present invention, invention has been described, but it will be understood by those within the art that, in the form and details it can be made various change, without departing from the spirit and scope that the present invention limits.
Claims (3)
1. a lithium ion battery quick charger, it is characterised in that: include casing, rechargeable battery, charging circuit, control circuit and charging self-checking circuit；
Described casing is provided with the groove placing rechargeable battery；
Described charging circuit, charging circuit, control circuit and charging self-checking circuit are arranged in casing；
Described charging circuit is connected with rechargeable battery for rechargeable battery is charged；
Described control circuit is connected the duty for controlling charging circuit with charging circuit；
Described charging self-checking circuit is connected for whether the circuit running parameter detecting charging circuit exists fault with charging circuit.
2. lithium ion battery quick charger according to claim 1, it is characterised in that: described charging self-checking circuit includes electric voltage observation circuit, voltage parameter comparison circuit and display lamp；
Described electric voltage observation circuit, is used for obtaining circuit actual parameter value；
Described voltage parameter comparison circuit, for comparison circuit actual parameter with normal circuit operation parameter the order obtaining control display lamp；
Described display lamp, is used for receiving the order of circuit parameter process circuit output connection or disconnecting the circuit of display lamp.
3. lithium ion battery quick charger according to claim 1, it is characterised in that: described charging self-checking circuit also includes by compressing switch, switch lever and elastic washer；
Described arrange in casing by compressing switch；Described by compressing switch and casing junction is provided with elastic washer；Described by compressing switch for passing through to press down the on off operating mode controlling charging self-checking circuit；Described by compressing switch and being provided with preset clearance between casing, the gap width of described preset clearance is slightly less than the amount of elastic deformation of elastic washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410816027.8A CN105790331A (en) | 2014-12-25 | 2014-12-25 | Rapid charger of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410816027.8A CN105790331A (en) | 2014-12-25 | 2014-12-25 | Rapid charger of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105790331A true CN105790331A (en) | 2016-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410816027.8A Pending CN105790331A (en) | 2014-12-25 | 2014-12-25 | Rapid charger of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105790331A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991571A (en) * | 2016-10-26 | 2018-05-04 | 中兴通讯股份有限公司 | It is a kind of to detect the abnormal method, apparatus of charging and power supply adaptor |
-
2014
- 2014-12-25 CN CN201410816027.8A patent/CN105790331A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991571A (en) * | 2016-10-26 | 2018-05-04 | 中兴通讯股份有限公司 | It is a kind of to detect the abnormal method, apparatus of charging and power supply adaptor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |
|
| WD01 | Invention patent application deemed withdrawn after publication |