CN1267115A - Supply unit and electronic apparatus - Google Patents

Supply unit and electronic apparatus Download PDF

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Publication number
CN1267115A
CN1267115A CN 00104050 CN00104050A CN1267115A CN 1267115 A CN1267115 A CN 1267115A CN 00104050 CN00104050 CN 00104050 CN 00104050 A CN00104050 A CN 00104050A CN 1267115 A CN1267115 A CN 1267115A
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CN
China
Prior art keywords
mentioned
battery
converter
electric power
supply
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Granted
Application number
CN 00104050
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Chinese (zh)
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CN1236538C (en
Inventor
富山久词
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Ricoh Co Ltd
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Ricoh Co Ltd
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Publication of CN1267115A publication Critical patent/CN1267115A/en
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Publication of CN1236538C publication Critical patent/CN1236538C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

This invention related to power supply device and electron equipment which install it. A power source control circuit 13 in the power source device 10 is provided with a function for detecting a saving energy mode signal from a control substrate 20 in equipment, and while the saving energy mode signal is detected, a battery 12 is held in a discharged state by a charging/discharging switching circuit 13c, and a power is supplied from the battery 12 to a load in the electronic equipment. Also, even when the saving energy mode signal is detected, the discharging of the battery 12 is stopped by the charging/ discharging switching circuit 13c when the residual power stored in the battery 12 is decreased, and the power source is switched to a converter 11.

Description

Supply unit and electronic equipment
The present invention relates to reduce the technology that obtains the electronic equipment power consumption of electric power from source power supply, reduce the power circuit technology of power consumption when relating in particular to standby.
In the past, affairs electronic equipments such as photocopier, facsimile machine, printer for example, be under the energized state, if user mode is not fixed time above institute, in order to reduce power consumption, usually make the most of outage of equipment, only surplus for example operation detection part, trusted test section, the sensor part that detects the people, the bottom lines such as interface portion that are connected with main device are partly connected, even this equipment moves on to province's energy pattern standby.
But, even in the past affairs with electronic equipment when standby common conversion from the electric power (AC/DC transfer, voltage transformation etc.) of source power supply (AC power supplies), supply with internal load, and, power converter efficient during standby reduces during than work significantly, though be standby, its electric power consumption can not be ignored.Therefore, in the bigger equipment of the ratio of the stand-by time that accounts for life of product (power connection time total), the total electricity consumption of this device product life period about electric power consumption size during standby.
The present invention puts forward in view of the existing problem of above-mentioned prior art, the objective of the invention is to, the supply unit that provides electric power consumption when reducing affairs and wait for machine can reduce the total electricity consumption of device product life period significantly, and the electronic equipment that this supply unit is housed with electronic equipment.
To achieve these goals, the present invention proposes a kind of supply unit, ensconcing in it goes into business obtains in the electronic equipment of work about electric power or is attached to outward on the above-mentioned electronic equipment with power supply, this supply unit be provided with from the power converter of source power supply to supply with the electronic equipment internal loading (circuit on the control basal plate for example, form the image forming part of image by electrophotographic method, Department of Communication Force etc.) converter and accumulate rechargeable battery from the electric power of this converter (Ni-MH battery for example, lithium ion battery etc.), above-mentioned converter and battery are parallel on the above-mentioned load, simultaneously, when the electric power consumption of above-mentioned load is big, from above-mentioned converter to above-mentioned load supply capability, the electric power consumption of above-mentioned load hour, from above-mentioned battery to above-mentioned load supply capability.
According to supply unit of the present invention, its feature also is to have following function: monitor the residual amount of electric power be accumulated in the battery, when this residual amount is lower than institute quantitatively the time, from converter to the load supply capability.
According to supply unit of the present invention, its feature also is to have when can not get the electric power occasion from source power supply from the function of battery to the load supply capability.
To achieve these goals, the present invention proposes a kind of electronic equipment, is provided with the supply unit that is used for obtaining from source power supply electric power; It is characterized in that, above-mentioned supply unit be provided with from the power converter of source power supply with the converter of supplying with the electronic equipment internal loading and accumulate rechargeable battery from the electric power of this converter, above-mentioned converter and battery are parallel on the above-mentioned load, simultaneously, when the electric power consumption of above-mentioned load is big, from above-mentioned converter to above-mentioned load supply capability, the electric power consumption of above-mentioned load hour, from above-mentioned battery to above-mentioned load supply capability.
According to electronic equipment of the present invention, its feature also is, electronic equipment produces the institute that expression is in the standby can pattern the time and decides signal economizing, and supply unit has the above-mentioned function of deciding signal of detection, detect above-mentioned decide signal during, from above-mentioned battery to above-mentioned load supply capability.
According to electronic equipment of the present invention, its feature is that also supply unit has following function: monitor the residual amount of electric power be accumulated in the above-mentioned battery, when this residual amount is lower than institute quantitatively the time, from above-mentioned converter to above-mentioned load supply capability.
According to electronic equipment of the present invention, its feature is that also supply unit has when can not get the electric power occasion from the function of above-mentioned battery to above-mentioned load supply capability from above-mentioned source power supply.
The following describes effect of the present invention.
According to supply unit of the present invention and electronic equipment, can be than the electric power consumption when reducing the electronic equipment standby significantly of device in the past, therefore, can reduce total electricity consumption during equipment life significantly.
According to supply unit of the present invention and electronic equipment, monitor the residual amount of electric power be accumulated in the battery, when this residual amount is lower than institute quantitatively the time, to the load supply capability, therefore, can reduce electric power consumption with effective form from converter, realize energy-conservation.
According to supply unit of the present invention and electronic equipment, when can not get the electric power occasion from source power supply, from battery to the load supply capability, therefore, though occasion such as when having a power failure, as long as residual in the battery have electric power, just can use equipment.
Brief Description Of Drawings is as follows:
Fig. 1 is the supply unit of the expression embodiment of the invention and the circuit block diagram of periphery thereof.
With reference to the accompanying drawings, describe the embodiment of the invention in detail.
Fig. 1 is the supply unit of the expression embodiment of the invention and the circuit block diagram of periphery thereof, among the figure, the 10th, supply unit of the present invention, the 20th, control basal plate is used to control the affairs electronic equipment such as facsimile machine, photocopier, printer of built-in above-mentioned supply unit 10.
Above-mentioned electronic equipment is the photocopier occasion for example, be provided with automatic supply original copy the automatic supply unit of original copy (ADF), read original image scanner section, by electronic camera technology form the image forming part of image, alternatively to image forming part supply with various sizes transfer paper sheet feed section, discharge row's paper portion of having duplicated transfer paper etc.Control basal plate 20 is provided with control circuit, is used for the above-mentioned electronic equipment each several part running of control totally.
In addition, control basal plate 20 is provided with province's energy control circuit, be under the connection main power source state, if equipment not user mode is fixed time above institute, in order to reduce power consumption, usually make the most of outage of equipment, only surplus for example operation detection part, trusted test section, the sensor part that detects the people, the bottom lines such as interface portion that are connected with main device are partly connected, even this equipment moves on to province's energy pattern standby.Can pattern if make this equipment move on to province, then the province on control basal plate 20 can control circuit sends the present equipment of expression and is in and sets signal (below, this signal brief note is " economize can signal ") the standby.
Supply unit 10 is provided with converter 11, rechargeable battery 12 and power control circuit 13.Converter 11 is originally that will carry out conversion from the electric power of source power supply 30 as supply unit supplies with load (circuit on the control basal plate 20, original copy automatic paper feeding portion, scanner section, image forming part, sheet feed section, paper-discharge mechanism portion, various transducers etc.) in the electronic equipment, rechargeable battery 12 is accumulated the electric power from converter 11, and power control circuit 13 is according to these supply units 10 of control such as province's energy mode signal from control basal plate 20.
Converter 11 comprises ac-dc conversion circuit and voltage stabilizing circuit, and ac-dc conversion circuit will be direct voltage from the input ac voltage full-wave rectification of source power supply 30, and voltage stabilizing circuit makes the dc voltage stability after the above-mentioned full-wave rectification supply with control basal plate 20 etc.Battery 12 uses the high batteries (secondary cell) of power density such as lithium ion battery.Converter 11 and battery 12 are parallel-connected on the load in the electronic equipment such as control basal plate 20.
Power control circuit 13 be provided with the electric power of transformation into itself's device 11 in the future to the battery charger 13a of battery 12 chargings, monitor the battery capacity monitoring circuit 13b of the residual amount of electric power that is accumulated in the battery 12 etc. and be used to switch that battery 12 discharges and recharges discharges and recharges commutation circuit 13c.
Power control circuit 13 has the function that detection economizes the energy mode signal, detects and economizes during the energy mode signal, and control makes battery 12 remain on discharge condition with discharging and recharging commutation circuit 13c, from the load supply capability of battery 12 in electronic equipment.Even when detecting province's energy mode signal, the few occasion of the residual amount of the electric power in being accumulated in battery 12, control discharges and recharges commutation circuit 13c and stops battery 12 discharges, and power supply is switched to converter 11.In addition, can not obtain the electric power occasion from source power supply 30, control is from the load supply capability of battery 12 in electronic equipment.
The following describes this embodiment action.
If connect electronic equipment power source, promptly start supply unit 10, be used for the electric power of transformation into itself's device 11 earlier to make electronic equipment start implementation initial stage processing etc.
After this, the user uses in the certain hour, and electronic equipment is kept common operating state with converter 11 as power supply, and still, if the user does not have any usage operation in the certain hour, just moving on to province can pattern become holding state.At this moment, the province on the control basal plate 20 of electronic equipment can send province's energy mode signal by control circuit, is sent to the power control circuit 13 of supply unit 10.
Power control circuit 13 detects economizes the energy mode signal, makes battery 12 switch to discharge condition by discharging and recharging commutation circuit 13c, simultaneously, makes converter 11 be in halted state.Like this, from the load supply capability of battery 12 beginnings in electronic equipment.During battery 12 supply capabilities, be roughly 0 watt from the power consumption of source power supply 30.
After this, battery 12 power consumption, when the residual amount of the electric power in being accumulated in battery 12 (or voltage) was lower than institute's definite value, 13b detected by the battery capacity monitoring circuit.So power control circuit 13 starts converter 11, the power supply feed path changes to converter 11 by battery 12 at once.And, restarting converter 11 simultaneously, battery 12 being switched to charged state by discharging and recharging commutation circuit 13c, the power supply when making converter 11 take on standby before battery 12 chargings finish is supplied with.
Detect battery 12 end of whether charging by battery capacity monitoring circuit 13b.
If battery capacity monitoring circuit 13b detects battery 12 ends of having charged, power control circuit 13 switches to discharge condition by discharging and recharging commutation circuit 13c with battery 12, simultaneously, makes converter 11 be in halted state, the power supply supply when making battery 12 take on standby.
Like this, province's energy mode signal of being sent out when surveillance electronics is in holding state, do not detect province's energy mode signal occasion, with converter 11 as power supply, detect province's energy mode signal occasion, just battery 12 is used as power supply as possible, by such formation supply unit 10 can be when device reduces the electronic equipment standby significantly in the past electric power consumption.Be light load in the electronic equipment during standby, the power converter efficient of converter 11 deterioration significantly during than work still, as mentioned above, makes converter 11 stop during standby, can reduce significantly because of the low power wastage that causes of power converter efficient.
In addition, supply unit 10 has the residual amount function of self diagnosis battery, uses as power supply at supply unit 10 inner automatic switchover converters 11 and battery 12, reduces electric power consumption with effective form, can realize energy-conservation.
If by user's operation, thereby electronic device works does not send province's energy mode signal, starts converter 11 at once, disconnects from battery 12 supply capabilities, can prevent the overdischarge of battery 12.
Battery 12 is former relatively, and to be used as the converter 11 of power circuit arranged side by side, be made as this grade circuit, when battery 12 is unusual or 12 life-spans of battery when expiring, do not use through battery 12 paths, and with the same as converter 11 supply capabilities in the past, so that do not damage equipment performance and fail safe.When taking off battery 12 in order to change battery etc. also not arrestment ground carry out operation.
Can not get the electric power occasion from source power supply 30, can be from battery 12 to electronic equipment internal loading supply capability, even state such as be in when having a power failure, there is the electric power just can use equipment as long as battery 12 is remaining.In electronic equipment in the past, be provided with the level and smooth electrolytic capacitor of input etc., by using this capacity part electric power, equipment stops when preventing the instantaneous power-off about 10～50ms; And in the present invention, not only for instantaneous power-off, even and 10 minutes even such long-time power failure in a hour, can prevent that also equipment from stopping.In addition,, can use battery 12 as power work in following period of time even pull up the attaching plug of source power supply 30, so, even while stationary device also can equally with movable equipment can keep up state to move.
Can realize supply unit of the present invention or electronic equipment by upward additional above-mentioned battery 12 of the existing power supply device (converter) in being built in electronic equipment and power control circuit 13.
Certainly, the present invention is not limited to the foregoing description, can do all changes in the technology of the present invention thought range, and they all belong to protection scope of the present invention.

Claims (5)

1. supply unit, it is characterized in that, being provided with will be from the power converter of source power supply with the converter of supplying with the electronic equipment internal loading and accumulate rechargeable battery from the electric power of this converter, above-mentioned converter and battery are parallel on the above-mentioned load, simultaneously, when the electric power consumption of above-mentioned load is big, from above-mentioned converter to above-mentioned load supply capability, the electric power consumption of above-mentioned load hour, from above-mentioned battery to above-mentioned load supply capability.
2. according to the supply unit described in the claim 1, it is characterized in that having following function: monitor the residual amount of electric power be accumulated in the above-mentioned battery, when this residual amount is lower than institute quantitatively the time, from above-mentioned converter to above-mentioned load supply capability.
3. according to the supply unit described in claim 1 or 2, it is characterized in that having when can not get the electric power occasion from the function of above-mentioned battery to above-mentioned load supply capability from above-mentioned source power supply.
4. an electronic equipment is provided with the supply unit that is used for obtaining from source power supply electric power; It is characterized in that, above-mentioned supply unit be provided with from the power converter of source power supply with the converter of supplying with the electronic equipment internal loading and accumulate rechargeable battery from the electric power of this converter, above-mentioned converter and battery are parallel on the above-mentioned load, simultaneously, when the electric power consumption of above-mentioned load is big, from above-mentioned converter to above-mentioned load supply capability, the electric power consumption of above-mentioned load hour, from above-mentioned battery to above-mentioned load supply capability.
5. according to the electronic equipment described in the claim 4, it is characterized in that, above-mentioned electronic equipment economize produce can pattern the time expression be in the standby decide signal, above-mentioned supply unit has the above-mentioned function of deciding signal of detection, detect above-mentioned decide signal during, from above-mentioned battery to above-mentioned load supply capability.
CN 00104050 1999-03-16 2000-03-14 Supply unit and electronic apparatus Expired - Fee Related CN1236538C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP11070863A JP2000267741A (en) 1999-03-16 1999-03-16 Power source device and electronic equipment
JP070863/1999 1999-03-16
JP070863/99 1999-03-16

Publications (2)

Publication Number Publication Date
CN1267115A true CN1267115A (en) 2000-09-20
CN1236538C CN1236538C (en) 2006-01-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 00104050 Expired - Fee Related CN1236538C (en) 1999-03-16 2000-03-14 Supply unit and electronic apparatus

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CN (1) CN1236538C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102315762A (en) * 2010-06-30 2012-01-11 株式会社巴比禄 Power supply unit and electronic device system
WO2014172961A1 (en) * 2013-04-22 2014-10-30 京东方科技集团股份有限公司 Power supply circuit and display apparatus
CN111464671A (en) * 2019-01-18 2020-07-28 青岛海信移动通信技术股份有限公司 Electronic equipment and charging method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4904088B2 (en) * 2006-05-29 2012-03-28 株式会社リコー Fixing apparatus and image forming apparatus
JP4982220B2 (en) * 2007-03-16 2012-07-25 株式会社リコー Image forming apparatus and power supply control method
JP5169186B2 (en) * 2007-12-05 2013-03-27 日本電気株式会社 Power supply
JP5640387B2 (en) 2010-01-21 2014-12-17 日本電気株式会社 Power supply
JP6514068B2 (en) * 2015-08-19 2019-05-15 株式会社東芝 Gate operating device and gate operating method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102315762A (en) * 2010-06-30 2012-01-11 株式会社巴比禄 Power supply unit and electronic device system
WO2014172961A1 (en) * 2013-04-22 2014-10-30 京东方科技集团股份有限公司 Power supply circuit and display apparatus
CN111464671A (en) * 2019-01-18 2020-07-28 青岛海信移动通信技术股份有限公司 Electronic equipment and charging method thereof
CN111464672A (en) * 2019-01-18 2020-07-28 青岛海信移动通信技术股份有限公司 Electronic equipment and charging method thereof
CN111464671B (en) * 2019-01-18 2021-07-30 青岛海信移动通信技术股份有限公司 Electronic equipment and charging method thereof

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Publication number Publication date
CN1236538C (en) 2006-01-11
JP2000267741A (en) 2000-09-29

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