CN202978310U - Movable power supply device - Google Patents

Movable power supply device Download PDF

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Publication number
CN202978310U
CN202978310U CN 201220442901 CN201220442901U CN202978310U CN 202978310 U CN202978310 U CN 202978310U CN 201220442901 CN201220442901 CN 201220442901 CN 201220442901 U CN201220442901 U CN 201220442901U CN 202978310 U CN202978310 U CN 202978310U
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CN
China
Prior art keywords
mcu
usb interface
boosting unit
power source
portable power
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
Application number
CN 201220442901
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Chinese (zh)
Inventor
张国训
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN HOLDTEC INNOVATIONS CO., LTD.
Original Assignee
SHENZHEN ZHONGYUANHANG TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to CN 201220442901 priority Critical patent/CN202978310U/en
Application granted granted Critical
Publication of CN202978310U publication Critical patent/CN202978310U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a movable power supply device which comprises the following components: a voltage boosting unit, a cell assembly, a MCU and a USB interface. An IO input end of the MCU is connected with a grounded line terminal of the USB interface. An enabling output end of the MCU is connected with a control end of the voltage boosting unit. When the IO input end of the MCU receives a level change signal, the enabling output end of the MCU outputs a control signal for activating the voltage boosting unit to operate normally. The movable power supply device realizes switching for operation states of the movable power supply through detecting whether a load is accessed into the USB interface.

Description

A kind of portable power source device
[technical field]
The utility model relates to the portable power source technical field, and the handoff functionality that is specifically related to a kind of portable power source operating state is realized technology.
[background technology]
Day by day universal along with multiple digital products such as mobile phone, MP3, MP4, PDA palmtop PC, handheld device, panel computers, portable office, portable game etc. become the development trend of society, a kind of portable charger that integrates power supply and charge function so just be born, it is portable power source, it can give the charging of the digital equipments such as mobile phone, panel computer or standby power supply whenever and wherever possible, its internal cell generally by lithium cell or dry cell as charge storage unit.Usually all on the portable power source shell, switch is set, realize switching the operating state of portable power source when utilizing portable power source to charge to the external number decoding apparatus by this external switch, become open state by standby/shutdown, this switching mode need to be offered on housing for the hole that switch is installed, and switch element is set on current supply circuit, make the processing more complicated, increase processing cost; By the frequent switch portable power source of switch, strengthen on the contrary the excess loss of portable power source in addition, can't effectively reduce the power consumption of power supply itself, the energy of saving portable power source storage inside.
Also have in addition and adopt the booster circuit in running order loss of avoiding starting shooting always make in portable power source, increase the above-mentioned technical problem such as switch element, still exist a problem to be exactly but do like this, strengthened the power consumption of portable power source, there are huge deviation in the storing electricity and the effective supply that make portable power source indicate to the user, so, be necessary to improve further the handoff technique of portable power source operating state.
[the utility model content]
For fear of above-mentioned technical problem, the utility model provides a kind of portable power source device, and whether it has load to access to realize the switching of portable power source operating state by detecting USB interface.Concrete technical scheme is as follows:
The utility model provides a kind of portable power source device, it comprises: boosting unit, battery component, MCU and USB interface, the IO input of described MCU connects the earth connection terminal of described USB interface, the control end that enables the described boosting unit of output connection of described MCU, when the IO of described MCU input received a level variable signal, the output output control signal that enables of described MCU started described boosting unit normal operation.
On the basis of such scheme, it also comprises switching tube, the positive pole of described battery component connects an end of described boosting unit and the power line terminal of described USB interface, the other end of described boosting unit connects the negative pole of described battery component, the earth connection terminal of described USB interface also connects the negative pole of described battery component by described switching tube, the IO output of described MCU connects the control end of described switching tube, when the IO of described MCU input received a level variable signal, the IO output of described MCU output control signal made described switching tube conducting.
On the basis of such scheme, it also comprises: energy storage inductor, the positive pole of described battery component connect an end of described boosting unit by described energy storage inductor.
On the basis of such scheme, it also comprises: one-way conduction element, being arranged between the power line terminal of an end of described boosting unit and described USB interface by conducting direction of described one-way conduction element.
On the basis of such scheme, described USB interface is the USB female seat, and when public mouthful of USB inserted described USB female seat, the earth connection terminal of described USB interface produced the IO input that a level variable signal inputs to described MCU.
On the basis of such scheme, described switching tube is metal-oxide-semiconductor, and the grid of described metal-oxide-semiconductor connects the IO output of described MCU, and the drain electrode of described metal-oxide-semiconductor connects the earth connection terminal of described USB interface, and the source electrode of described metal-oxide-semiconductor connects the negative pole of described battery component.
On the basis of such scheme, the source electrode of described metal-oxide-semiconductor connects signal ground.
Technique effect of the present utility model:
1, avoid using switch that the operating state of portable power source is switched, thereby reduce peripheral component, reduce that the switch exposed port being set on housing, reduce procedure of processing, reduction die sinking cost cuts down finished cost, guarantee the housing integrality, improved overall tightness;
2, keep the portable power source equipment of stand-by operation state to compare with make booster circuit always, the utility model has reduced stand-by power consumption, reduces at least by the power consumption of up to a hundred milliamperes;
3, the convenient use, easy and simple to handle, as long as USB interface is connected, portable power source can be switched to operating state from holding state, need not the restart switch button.
[description of drawings]
Fig. 1 is structural representation of the present utility model.
[embodiment]
For the ease of understanding the utility model, the below is described more fully the utility model with reference to relevant drawings.Provided preferred embodiment of the present utility model in accompanying drawing.But the utility model can be realized in many different forms, is not limited to embodiment described herein.On the contrary, provide the purpose of these embodiment be make the understanding of disclosure of the present utility model more comprehensively thorough.
Need to prove, when element is called as " being fixed in " another element, can directly can there be element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may have simultaneously centering elements.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology of using of this paper and scientific terminology are with to belong to the implication that those skilled in the art of the present utility model understand usually identical.The term that uses in specification of the present utility model herein is not intended to be restriction the utility model just in order to describe the purpose of specific embodiment.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
For fear of using switch that the operating state of portable power source is switched, and the stand-by power consumption problem that reduces as far as possible portable power source, the utility model provides a kind of portable power source device, it comprises: boosting unit, battery component, MCU and USB interface, the IO input of MCU connects the earth connection terminal of USB interface, the control end that enables output connection boosting unit of MCU, when the IO of MCU input received a level variable signal, the output output control signal that enables of MCU started the boosting unit normal operation.Usually, above-mentioned USB interface is the USB female seat, when public mouthful of USB inserts the USB female seat, the earth connection terminal of USB interface can produce a level variable signal, the utility model utilizes this point to detect to judge USB interface whether the load access is arranged, thereby starts becoming normal operation from standby and completing the charging task of boosting unit.Illustrate a specific embodiment of the present utility model below in conjunction with accompanying drawing 1.
as shown in Figure 1, the present embodiment provides a kind of portable power source device, it comprises: boosting unit 10, battery component BT, MCU 20, USB interface 30 and switching tube Q1, the positive pole of battery component BT connects an end of boosting unit 10 and the power line terminal 1 of USB interface 30, the other end of boosting unit 10 connects the negative pole of battery component BT, the control end that enables output EN connection boosting unit 10 of MCU 20, the IO input IO1 of MCU 20 connects the earth connection terminal 4 of USB interface 30, the earth connection terminal 4 of USB interface 30 also connects the negative pole of battery component BT by switching tube Q1, the control end of the IO output IO2 connecting valve pipe Q1 of MCU 20, when the IO of MCU 20 input IO1 receives a level variable signal, the output EN output control signal that enables of MCU 20 starts boosting unit 10 normal operations.And, when the IO of MCU 20 input IO1 receives a level variable signal, the IO output IO2 output control signal of MCU 20 makes switching tube Q1 conducting, and the output of boosting unit 10 directly is connected across between power line terminal 1 and earth connection terminal 4, is the load charging of access.
Usually the USB interface 30 that arranges on portable power source is the USB female seat, and when public mouthful of USB inserted described USB female seat, the earth connection terminal 4 of USB interface 30 produced the IO input IO1 that a level variable signal inputs to MCU.Can certainly public mouthful of USB and USB female seat displacement setting.
In the present embodiment, when portable power source did not have the load access, namely USB interface 30 was not inserted, and earth connection terminal 4 is unsettled, was considered as the high level access, kept the holding state of portable power source; When portable power source access load, when namely the public mouth of USB inserts described USB female seat, earth connection terminal 4 is by load and power line terminal 1 electric connection, the voltage of earth connection terminal 4 is dragged down, the IO input IO1 of MCU 20 detects this and transforms to low level level variable signal from high level, so the output EN output control signal that enables of MCU 20 starts boosting unit 10 normal operations, simultaneously, the IO output IO2 output control signal of MCU 20 makes switching tube Q1 conducting, so complete the task into the load charging.
The present embodiment detects between power line terminal 1 on USB interface 30 and earth connection terminal 4 by suitable circuit design whether the load access is arranged, if, open boosting unit 10 and charge for load, if not, keep the holding state of portable power source.Do like this loss that can effectively reduce the portable power source that brings because of boosting unit, and reduce the cost increase problem of bringing because switch element is set.
In addition, on the basis of such scheme, the present embodiment also comprises: energy storage inductor L1, the positive pole of battery component BT connects an end of boosting unit 10 by energy storage inductor L1, by energy storage inductor L1, both can realize filter function, and can also coordinate boosting unit 10 to realize boosting by the energy-storage function of inductance L 1.
In addition, on the basis of such scheme, the present embodiment also comprises: the one-way conduction element, being arranged between the power line terminal 1 of an end of boosting unit 10 and USB interface 30 by conducting direction of one-way conduction element, its main purpose are that the situation of effectively avoiding oppositely damaging components and parts because of electric current occurs.The one-way conduction element here can be diode D1, as shown in Figure 1.
Above-mentioned switching tube Q1 can be metal-oxide-semiconductor on the basis of such scheme, the grid of described metal-oxide-semiconductor connects the IO output IO2 of described MCU, the drain electrode of described metal-oxide-semiconductor connects the earth connection terminal of described USB interface, and the source electrode of described metal-oxide-semiconductor connects the negative pole of described battery component.On the basis of such scheme, the source electrode of described metal-oxide-semiconductor connects signal ground.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.

Claims (7)

1. portable power source device, it comprises: boosting unit, battery component, MCU and USB interface, it is characterized in that, the IO input of described MCU connects the earth connection terminal of described USB interface, the control end that enables the described boosting unit of output connection of described MCU, when the IO of described MCU input received a level variable signal, the output output control signal that enables of described MCU started described boosting unit normal operation.
2. portable power source device according to claim 1, it is characterized in that, it also comprises switching tube, the positive pole of described battery component connects an end of described boosting unit and the power line terminal of described USB interface, the other end of described boosting unit connects the negative pole of described battery component, the earth connection terminal of described USB interface also connects the negative pole of described battery component by described switching tube, the IO output of described MCU connects the control end of described switching tube, when the IO of described MCU input receives a level variable signal, the IO output output control signal of described MCU makes described switching tube conducting.
3. portable power source device according to claim 2, is characterized in that, it also comprises: energy storage inductor, the positive pole of described battery component connect an end of described boosting unit by described energy storage inductor.
4. portable power source device according to claim 2, is characterized in that, it also comprises: one-way conduction element, being arranged between the power line terminal of an end of described boosting unit and described USB interface by conducting direction of described one-way conduction element.
5. portable power source device according to claim 1, is characterized in that, described USB interface is the USB female seat, and when public mouthful of USB inserted described USB female seat, the earth connection terminal of described USB interface produced the IO input that a level variable signal inputs to described MCU.
6. portable power source device according to claim 2, it is characterized in that, described switching tube is metal-oxide-semiconductor, the grid of described metal-oxide-semiconductor connects the IO output of described MCU, the drain electrode of described metal-oxide-semiconductor connects the earth connection terminal of described USB interface, and the source electrode of described metal-oxide-semiconductor connects the negative pole of described battery component.
7. portable power source device according to claim 6, is characterized in that, the source electrode of described metal-oxide-semiconductor connects signal ground.
CN 201220442901 2012-08-31 2012-08-31 Movable power supply device Expired - Fee Related CN202978310U (en)

Priority Applications (1)

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CN 201220442901 CN202978310U (en) 2012-08-31 2012-08-31 Movable power supply device

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Application Number Priority Date Filing Date Title
CN 201220442901 CN202978310U (en) 2012-08-31 2012-08-31 Movable power supply device

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105896662A (en) * 2016-05-11 2016-08-24 深圳市高拓新能科技有限公司 Single-port mobile power control circuit and control method thereof
CN108932139A (en) * 2018-06-21 2018-12-04 Tcl通力电子(惠州)有限公司 Automatic boot circuit and electronic equipment
CN109167420A (en) * 2018-10-31 2019-01-08 维沃移动通信有限公司 A kind of charging control circuit, charging circuit and charge control method
CN112087011A (en) * 2019-06-12 2020-12-15 苏州宝时得电动工具有限公司 Battery pack

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105896662A (en) * 2016-05-11 2016-08-24 深圳市高拓新能科技有限公司 Single-port mobile power control circuit and control method thereof
CN108932139A (en) * 2018-06-21 2018-12-04 Tcl通力电子(惠州)有限公司 Automatic boot circuit and electronic equipment
CN109167420A (en) * 2018-10-31 2019-01-08 维沃移动通信有限公司 A kind of charging control circuit, charging circuit and charge control method
US11742684B2 (en) 2018-10-31 2023-08-29 Vivo Mobile Communication Co., Ltd. Charging control circuit, charging circuit and charging control method
CN112087011A (en) * 2019-06-12 2020-12-15 苏州宝时得电动工具有限公司 Battery pack

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C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20151112

Address after: 518000 Guangdong city of Shenzhen province Nanshan District Gao Xin Road No. 008 SKYWORTH building A, room 803A

Patentee after: SHENZHEN HAODA ELECTRONIC CO., LTD.

Address before: 518000 Guangdong province Baoan District manhole Street Hong Tian Shenzhen City banyan plant No. 1 1-4

Patentee before: Shenzhen Zhongyuanhang Technology Co., Ltd.

C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 518000 Guangdong city of Shenzhen province Nanshan District Gao Xin Road No. 008 SKYWORTH building A, room 803A

Patentee after: SHENZHEN HOLDTEC INNOVATIONS CO., LTD.

Address before: 518000 Guangdong city of Shenzhen province Nanshan District Gao Xin Road No. 008 SKYWORTH building A, room 803A

Patentee before: SHENZHEN HAODA ELECTRONIC CO., LTD.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130605

Termination date: 20190831

CF01 Termination of patent right due to non-payment of annual fee