CN205141708U - Fill portable lithium battery power soon - Google Patents
Fill portable lithium battery power soon Download PDFInfo
- Publication number
- CN205141708U CN205141708U CN201520626226.2U CN201520626226U CN205141708U CN 205141708 U CN205141708 U CN 205141708U CN 201520626226 U CN201520626226 U CN 201520626226U CN 205141708 U CN205141708 U CN 205141708U
- Authority
- CN
- China
- Prior art keywords
- battery
- circuit
- output port
- control part
- power supply
- 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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Abstract
The utility model provides a control part (80) and connect in that fill portable lithium battery power soon includes casing (10), set up battery electricity core (20) in this casing, control this battery electricity core (20) work output port (60) of control part (80), control part (80) are including the power input portion (81), charging and discharging circuit (82) and the electric core protection circuit (83) that connect gradually, electric core protection circuit (83) are connected respectively to battery electricity core (20) and output port (60), discharge circuit (822) in charging and discharging circuit (82) are the reduction voltage circuit. The utility model discloses a be provided with a switching power supply module, 1 standard USB output port who steps down and handle battery electricity core on the mainboard to can more make things convenient for / swift getting.
Description
Technical field
The utility model relates to power technology, the lithium battery power supply particularly for carrying out charging to miniaturized electronics.
Background technology
For a portable power source product, safe, practical is consumer's first concern certainly, wherein relates to the accreditation of capacity, quality and outward appearance.Along with portable power source product is more and more ripe and the allegro life requirement of consumer.Consumer's problem very deeply concerned is also become gradually to the pursuit of portable power source charging rate.Existing market main flow quick charge principle is portable power source when externally charging, and after being boosted, reaches externally to export to realize comparing fast and fills effect soon faster by inside.But thisly carry out quick charge by boosting mode, first will reduce the electricity transfer ratio of portable power source.Reason is that the inner boost process of portable power source can cause heating, and most electric energy of loss, cause the decline of electricity conversion ratio most.The shortcoming of filling soon of boosting is: the mode of filling soon by boosting on the one hand is charged because heating situation can be caused to produce, and reduces electric energy and changes rate, be unfavorable for the useful life of power supply to a certain extent; In addition, for some second-rate power supplys of market, also can increase the unsafe factor of product, and even heating there is the hidden danger causing battery explosion.
Summary of the invention
The utility model provides one to fill portable lithium battery power supply soon, adopts the mode of step-down quick charge, solves the technical problem that in prior art, electricity transfer ratio is low and power source life is short.
The utility model for solve the problems of the technologies described above and provide thisly fill portable lithium battery power supply soon and comprise housing, be arranged at the battery battery core in this housing, control the control part of this battery battery core work and be connected to the output port of described control part, described control part comprises the power input part connected successively, charge-discharge circuit and battery core protective circuit, described battery battery core and output port connect battery core protective circuit respectively, discharge circuit in described charge-discharge circuit is reduction voltage circuit, described power input part comprises standard MICRO input port, described output port comprises first output port of MicroUSB and second output port of standard USB.
Described control part also comprises the battery core battery capacity indication portion connecting described battery battery core; also comprise the input overvoltage/under-voltage protecting circuit of connecting with the charging circuit in described charge-discharge circuit and input battery capacity indication portion, comprise the output current protective circuit, the output short circuit protection circuit that connect described output port respectively further and export battery capacity indication portion.
The utility model by being provided with switch power module battery battery core being carried out to buck process on mainboard, carries the USB output port of 2 standards, thus can more convenient/power taking efficiently, and has simultaneously to the function of two digital products chargings.
Accompanying drawing explanation
Fig. 1 is the perspective exploded view that the utility model fills portable power source soon.Fig. 2 is the schematic block circuit diagram that the utility model fills portable power source soon.
Embodiment
In conjunction with above-mentioned accompanying drawing, specific embodiment of the utility model is described.
From in Fig. 1 and Fig. 2, thisly fill portable lithium battery power supply soon and comprise housing 10, be arranged at the battery battery core 20 in this housing, control the control part 80 of this battery battery core 20 work and be connected to the output port 60 of described control part 80, described control part 80 comprises the power input part 81 connected successively, charge-discharge circuit 82 and battery core protective circuit 83, described battery battery core 20 and output port 60 connect battery core protective circuit 83 respectively, discharge circuit 822 in described charge-discharge circuit 82 is reduction voltage circuit, described power input part 81 comprises standard MICRO input port, described output port 60 comprises MicroUSB first output port 61 and standard USB second output port 62 of different systems.The direct insertion input charging modes of the utility model, is directly charged to self fast by 220V voltage.220V reduced output voltage 8.4V/3A directly to two joint series-connected cells chargings, is eliminated inner boost process, directly can realize quick charge, not only not generate heat, decrease 80% electric energy loss, also made electric energy conversion ratio reach more than 90% simultaneously by inside.Owing to decreasing heating, its battery and fail safe also reach industry-leading level.Discharge circuit of the present utility model is a reduction voltage circuit, this circuit be by the battery core of battery to its power supply thus simultaneously by voltage constant for pressure output two groups to externally fed.Wherein reduction voltage circuit exports 5V/1A and exports 5V/2.1A, adopt special step-down ICSY8205 to control, the SY8205 that the utility model is selected is 500KHz operating frequency, and SY8205 is the control IC of a synchronous buck, built-in MOS, can make step-down circuit operating efficiency reach 90%.Battery core electric discharge also can first pass through battery core baffle, effectively can ensure that lithium cell is not put by mistake like this, overcurrent etc. and damaging.
From in Fig. 2; described control part 80 also comprises the battery core battery capacity indication portion 84 connecting described battery battery core 20; also comprise the input overvoltage/under-voltage protecting circuit 85 of connecting with the charging circuit 821 in described charge-discharge circuit 82 and input battery capacity indication portion 86, comprise the output current protective circuit 87, the output short circuit protection circuit 88 that connect described output port 60 respectively further and export battery capacity indication portion 89.The utility model is primarily of housing and the control part (mainboard) be built in housing and battery battery core composition, its middle shell comprises upper cover 11 and lower cover 12 forms, in the side of housing while arrange 5V/2.1AUSB output, can be two digital product chargings by these two output ports simultaneously.Input port connects computer USB port by wire rod or power supply adaptor USB port is charged to the utility model internal cell battery core; LED display box is used for showing battery core electricity; Button is used for discharging and display battery core electricity.Master control borad is provided with switch power module battery battery core being carried out to step-down process; Described battery battery core comprises 2 18650 battery cores, and series connection uses, and battery core is welded with a battery core baffle.Charging circuit of the present utility model is also a reduction voltage circuit, the inner adapter with 8.4V3A, the battery charging of this two joints series connection of constant current output.Protective circuit (battery core protective circuit 83) is by chip microcontroller.Over-current protection point is 1.5A, 2A output overcurrent protection point is 2.5A, and in addition, output short-circuit, also has the under-voltage protection etc. of battery core all can be realized by this single-chip microcomputer of U14HT46R066.
Battery capacity indication circuit function be pilot cell charge or electric discharge or standing time an electricity of battery, it is also by realizing the detection of battery battery core voltage by this single-chip microcomputer of U14HT46R066.Battery capacity indication is roughly divided into four-stage: 0%, 25%, 75%, 100%; Also respectively with four LEDs instructions: LED1, LED2, LED3, LED4.Also have the function that warning is moved at low electricity place, the utility model sets: in discharge process when battery core voltage is lower than 6.05V, LED1 lights automatically simultaneously, and with 2Hz frequency scintillation until user takes down load.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. one kind is filled portable lithium battery power supply soon, it is characterized in that: this lithium battery power supply comprises housing (10), be arranged at the battery battery core (20) in this housing, control the control part (80) that this battery battery core (20) works and the output port (60) being connected to described control part (80), described control part (80) comprises the power input part (81) connected successively, charge-discharge circuit (82) and battery core protective circuit (83), described battery battery core (20) and output port (60) connect battery core protective circuit (83) respectively, discharge circuit (822) in described charge-discharge circuit (82) is reduction voltage circuit.
2. according to claim 1ly fill portable lithium battery power supply soon, it is characterized in that: described power input part (81) comprises standard MICRO input port.
3. according to claim 1ly fill portable lithium battery power supply soon, it is characterized in that: described output port (60) comprises first output port (61) of MicroUSB and second output port (62) of standard USB.
4. according to any one of claim 1 to 3ly fill portable lithium battery power supply soon, it is characterized in that: described control part (80) also comprises the battery core battery capacity indication portion (84) connecting described battery battery core (20).
5. according to any one of claim 1 to 3ly fill portable lithium battery power supply soon, it is characterized in that: described control part (80) also comprises the input overvoltage/under-voltage protecting circuit (85) of connecting with the charging circuit (821) in described charge-discharge circuit (82) and inputs battery capacity indication portion (86).
6. according to claim 4ly fill portable lithium battery power supply soon, it is characterized in that: described control part (80) also comprises the output current protective circuit (87), the output short circuit protection circuit (88) that connect described output port (60) respectively and exports battery capacity indication portion (89).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520626226.2U CN205141708U (en) | 2015-08-19 | 2015-08-19 | Fill portable lithium battery power soon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520626226.2U CN205141708U (en) | 2015-08-19 | 2015-08-19 | Fill portable lithium battery power soon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205141708U true CN205141708U (en) | 2016-04-06 |
Family
ID=55627461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520626226.2U Expired - Fee Related CN205141708U (en) | 2015-08-19 | 2015-08-19 | Fill portable lithium battery power soon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205141708U (en) |
-
2015
- 2015-08-19 CN CN201520626226.2U patent/CN205141708U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20180819 |