CN207014978U - It is applicable the portable printer of low pressure charging - Google Patents
It is applicable the portable printer of low pressure charging Download PDFInfo
- Publication number
- CN207014978U CN207014978U CN201720925079.8U CN201720925079U CN207014978U CN 207014978 U CN207014978 U CN 207014978U CN 201720925079 U CN201720925079 U CN 201720925079U CN 207014978 U CN207014978 U CN 207014978U
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- CN
- China
- Prior art keywords
- battery
- charging
- low pressure
- resistance
- voltage
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- 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 portable printer of low pressure charging, including casing are applicable, the printer also includes USB interface, battery, boost charge management circuit, and the boost charge management circuit connects the USB interface and the battery respectively；The USB interface connects extraneous power supply, and the voltage specification of the battery is more than the charging voltage that the extraneous power supply provides, and the battery is used to be connected with printer control module.The portable printer for being applicable low pressure and charging that the utility model is obtained by above-mentioned design, using the big lithium battery of voltage specification so that the print speed of printer is improved.Meanwhile manage circuit by devising boost charge so that the charging voltage that 5V is provided in Portable charging apparatus such as the USB interface of computer, charger baby, charger, onboard chargers still is able to charge to the lithium battery of printer.
Description
Technical field
The field of printer is the utility model is related to, in particular to the portable printer for being applicable low pressure charging.
Background technology
At present, the common printer being used cooperatively with electric power microcomputer device of in the market needs to configure power line and special number
According to line, cause field connection it is complicated, in-convenience in use, it is expensive.And portable printer, lithium battery is typically all used, almost
Based on 3.7V or 7.4V two kinds of specifications of voltage.Using 3.7V battery specifications, cause print speed slow because voltage is low.Cause
This, the consideration for print speed should select the high lithium battery of voltage specification.However, charging adds one generally by high voltage
Charging of the individual current-limiting resistance to low-voltage, existing computer and other bile devices are intelligently only capable of providing 5V charging voltage,
Cause from the high lithium battery of voltage specification, it is difficult to realize portable, convenient charge requirement.
Utility model content
The utility model provides a kind of portable printer for being applicable low pressure charging, it is intended to improves portable using voltage
The problem of print speed is slow be present in the low lithium battery of specification.
What the utility model was realized in：
The portable printer of low pressure charging, including casing are applicable, the printer also includes USB interface, battery, boosting
Charge management circuit, the boost charge management circuit connect the USB interface and the battery respectively；The USB interface connects
Extraneous power supply is connect, the voltage specification of the battery is more than the charging voltage that the extraneous power supply provides, and the battery is used for beating
Print machine control module connects.
Further, in the utility model preferred embodiment, the voltage specification of the battery is 7.4V.
Further, in the utility model preferred embodiment, the extraneous power supply using computer or charger baby or
Person's onboard charger or mobile phone charge pal, the extraneous power supply provide 5V charging voltage.
Further, in the utility model preferred embodiment, the boost charge management circuit uses SY6982C cores
Piece.
Further, in the utility model preferred embodiment, the USB interface uses micro USB-style mother's mouths.
Further, in the utility model preferred embodiment, the printer also includes insertion interface circuit, described
Insertion interface circuit includes resistance R102, R31, R32, and NPN type triode Q12, and the colelctor electrode of the NPN type triode connects
Connecting resistance R102 and the USB interface, resistance R102 other end connection power supply, the grounded emitter of the NPN type triode,
The base stage of the NPN type triode connects resistance R31, R32, resistance R32 other end ground connection, the resistance R31 other end respectively
Output voltage VBUS；Voltage VBUS is charged by charge management circuit for battery.
The beneficial effects of the utility model are：The utility model is applicable the portable of low pressure charging by what above-mentioned design obtained
Formula printer, using the big lithium battery of voltage specification so that the print speed of printer is improved.Meanwhile by devising
Boost charge manages circuit so that is carried in Portable charging apparatus such as the USB interface of computer, charger baby, charger, onboard chargers
It still is able to charge to the lithium battery of printer for 5V charging voltage.
Brief description of the drawings
, below will be to required in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The accompanying drawing used is briefly described, it will be appreciated that and the following drawings illustrate only some embodiments of the present utility model, therefore not
The restriction to scope is should be considered as, for those of ordinary skill in the art, on the premise of not paying creative work,
Other related accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model embodiment, is applicable the block diagram of the portable printer of low pressure charging；
Fig. 2 is the utility model embodiment, inserts the circuit diagram of interface circuit；
Fig. 3 is the utility model embodiment, and boost charge manages the circuit diagram of circuit.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
Accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, shown
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in new, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of the utility model protection.Therefore, the implementation of the present utility model to providing in the accompanying drawings below
The detailed description of mode is not intended to limit claimed the scope of the utility model, but is merely representative of of the present utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under the premise of dynamic, belong to the scope of the utility model protection.
Also include referring to figs. 1 to the portable printer for shown in Fig. 3, being applicable low pressure charging, including casing, the printer
USB interface, battery, boost charge management circuit, the boost charge management circuit connect the USB interface and the electricity respectively
Pond；The USB interface connects extraneous power supply, and the voltage specification of the battery is more than the charging voltage that the extraneous power supply provides,
The battery is used to be connected with printer control module.Circuit is managed by devising boost charge so that is connect in the USB of computer
The charging voltage that the Portable charging apparatus such as mouth, charger baby, charger, onboard charger, mobile phone charge pal provide 5V still is able to pair
The larger lithium battery of voltage specification is charged.The convenient charging of the big printer of the voltage specification of realization, takes into account printer and beats
Print-out rate soon with convenient two advantages of charging.
Printer is often 3.7V and 7.4V with the specification of lithium battery, it is preferred that the voltage specification of the battery is 7.4V；Institute
Stating extraneous power supply, either charger baby or onboard charger, the extraneous power supply provide 5V charging voltage using computer.Using
During 3.7V lithium battery, the Portable charging apparatus such as the USB interface of common computer, charger baby, charger, onboard charger provides
5V can directly charge to lithium battery.But the height of the print speed of printer and operating voltage is proportional,
3.7V lithium battery print speed is slow.And the lithium battery of 7.4V voltage specifications is used, the printing of printer can be greatly improved
Speed, and further improve by using boost charge to manage circuit realiration low pressure external power easily to voltage in printer
Lithium battery with a higher standard is charged.Realize convenient charging.
Preferably, USB interface uses micro USB-style mother's mouths.Therefore, filled during charging using the Android of standard on the market
The extraneous power supply of electric data wire connection can connect USB interface and external power on printer.Android charging data line one end is
MICRO USB Type-B joints, the other end are Type A type public affairs mouths.
Preferably, the boost charge management circuit uses SY6982C chips.Booster circuit, energy are set in SY6982C chips
Enough lithium batteries to 7.4V voltage specifications charge.Maximum charging current is 2A, has input adaptive can compatible market
The 5V energization chargers such as upper 0.5A, 1A, 2A.Therefore, it is possible to meet to be adapted to the charging equipments such as charger baby, computer, vehicle-mounted charge treasured.
According to the different charging stages, using low pressure charging either constant-current charge or constant-voltage charge.Also have input current limit circuit,
Battery temperature protection circuit.
Further, the printer also include insertion interface circuit, it is described insertion interface circuit include resistance R102,
R31, R32, and NPN type triode Q12, colelctor electrode connection resistance R102 and the USB interface of the NPN type triode,
Resistance R102 other end connection power supply, the grounded emitter of the NPN type triode, the base stage point of the NPN type triode
Not Lian Jie resistance R31, R32, resistance R32 the other end ground connection, resistance R31 other end output voltage VBUS；Voltage VBUS leads to
Overcharge manages circuit and charged for battery.
Specifically, boost charge management circuit also include resistance R83, R85, R86, R203, R99, R127, R128,
R81, R91, R89, R96, R93, R119, R90, R94, R104, R120, electric capacity C30, C64, C66, C29, C75, the pole of NPN type three
Pipe Q14, FET Q10, Q7, inductance CK1, ESD protection pipe D2.SY6982C chips include pin STAT, NTC, ICHAG,
BAT、PGND、GND、BD1、BD2、BST、LX、SVIN、ILIM、EN。
Pin BAT connection batteries, pin PGND, GND are grounded respectively.Resistance R85 both ends connect respectively pin STAT with
3.3V power supply.Resistance R91 both ends connect pin NTC and VBUS respectively, and resistance R89 both ends connect pin NTC with filling respectively
Electric seat.
Pin ICHAG is the pin for selecting charging modes, and boost charge management circuit can be in different phase using different
Charging modes, and then realize quick charge.Resistance R93 both ends connect pin ICHAG and charging socket respectively.Resistance R86
Both ends connect pin ICHAG and FET Q10 drain electrode respectively, FET Q10 grid connect respectively resistance R119,
R90, resistance R119 other end connection MODE0 ports, resistance R90 other end connection cradle, FET Q10 source electrode
Connect cradle.Resistance R96 both ends connect pin ICHAG and FET Q7 drain electrode, FET Q7 grid respectively
Resistance R107, R120 are connected respectively, resistance the R107 other end connection VBUS, resistance the R120 other end connect MODE1 ports,
FET Q7 source electrode connection cradle.
Pin BD1, BD2 connect electric capacity C75 one end, electric capacity C75 other end connection cradle respectively.Electric capacity C76's
Both ends connect pin BST, LX respectively, and inductance CK1 both ends connect VBUS and pin LX respectively.ESD protection pipes D2, electric capacity C30,
Both ends connect VBUS and cradle respectively after C64 parallel connections.Resistance R203 both ends connect VBUS and pin SVIN, electric capacity respectively
C29 both ends connect pin SVIN and cradle respectively.Pin ILIM is limitation input current pin, and resistance R83 both ends are divided
Lian Jie not VBUS and pin ILIM.
Resistance R99 both ends connect VBUS and pin EN respectively, and NPN type triode Q14 colelctor electrode is connected to pin EN,
Resistance R127 both ends connect NPN type triode Q14 base stage and CHARGE_EN ports, NPN type triode Q14 hair respectively
Emitter-base bandgap grading is connected to cradle.Resistance R128 both ends connect CHARGE_EN ports and cradle respectively.Resistance R81 both ends point
Not Lian Jie pin CV and cradle, electric capacity C66 both ends connect pin TIM and cradle respectively.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for
For those skilled in the art, the utility model can have various modifications and variations.It is all in spirit of the present utility model and former
Within then, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (6)
1. be applicable the portable printer of low pressure charging, including casing, it is characterised in that the printer also include USB interface,
Battery, boost charge management circuit, the boost charge management circuit connect the USB interface and the battery respectively；It is described
USB interface connects extraneous power supply, and the voltage specification of the battery is more than the charging voltage that the extraneous power supply provides, the battery
For being connected with printer control module.
2. the portable printer according to claim 1 for being applicable low pressure charging, it is characterised in that the voltage of the battery
Specification is 7.4V.
3. the portable printer according to claim 2 for being applicable low pressure charging, it is characterised in that the extraneous power supply is adopted
With computer, either charger baby or onboard charger or mobile phone charge pal, the extraneous power supply provide 5V charging voltage.
4. the portable printer according to claim 3 for being applicable low pressure charging, it is characterised in that the boost charge pipe
Reason circuit uses SY6982C chips.
5. the portable printer according to claim 3 for being applicable low pressure charging, it is characterised in that the USB interface is adopted
With micro USB-style mother's mouths.
6. the portable printer according to claim 1 for being applicable low pressure charging, it is characterised in that the printer also wraps
Include insertion interface circuit, the insertion interface circuit includes resistance R102, R31, R32, and NPN type triode Q12, described
Colelctor electrode connection resistance R102 and the USB interface of NPN type triode, resistance R102 other end connection power supply, the NPN
The grounded emitter of type triode, the base stage of the NPN type triode connect resistance R31, R32, the resistance R32 other end respectively
Ground connection, resistance R31 other end output voltage VBUS；Voltage VBUS is charged by charge management circuit for battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720925079.8U CN207014978U (en) | 2017-07-27 | 2017-07-27 | It is applicable the portable printer of low pressure charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720925079.8U CN207014978U (en) | 2017-07-27 | 2017-07-27 | It is applicable the portable printer of low pressure charging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207014978U true CN207014978U (en) | 2018-02-16 |
Family
ID=61481313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720925079.8U Expired - Fee Related CN207014978U (en) | 2017-07-27 | 2017-07-27 | It is applicable the portable printer of low pressure charging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207014978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112540644A (en) * | 2019-09-23 | 2021-03-23 | 苏明晨 | Portable interface that charges suitable for notebook computer |
-
2017
- 2017-07-27 CN CN201720925079.8U patent/CN207014978U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112540644A (en) * | 2019-09-23 | 2021-03-23 | 苏明晨 | Portable interface that charges suitable for notebook computer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| IP01 | Partial invalidation of patent right |
Commission number: 5W114843 Conclusion of examination: Claims 1-2 are declared invalid and the patent is maintained on the basis of claims 3-6. Decision date of declaring invalidation: 20181018 Decision number of declaring invalidation: 37484 Denomination of utility model: Portable printer that applicable low pressure is charged Granted publication date: 20180216 Patentee: Xiamen Hanin Electronic Technology Co., Ltd. |
|
| IP01 | Partial invalidation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180216 Termination date: 20180727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |