CN108302134A - Supply unit - Google Patents

Supply unit Download PDF

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Publication number
CN108302134A
CN108302134A CN201710026202.7A CN201710026202A CN108302134A CN 108302134 A CN108302134 A CN 108302134A CN 201710026202 A CN201710026202 A CN 201710026202A CN 108302134 A CN108302134 A CN 108302134A
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CN
China
Prior art keywords
state
load
supply unit
interconnecting piece
clutch
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Granted
Application number
CN201710026202.7A
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Chinese (zh)
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CN108302134B (en
Inventor
过兆平
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Konica Minolta Technology Development Wuxi Co Ltd
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Konica Minolta Technology Development Wuxi Co Ltd
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Priority to CN201710026202.7A priority Critical patent/CN108302134B/en
Publication of CN108302134A publication Critical patent/CN108302134A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/14Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D2027/002Electric or electronic circuits relating to actuation of electromagnetic clutches

Abstract

The present invention provides a kind of supply unit, the supply unit has primary side components, rectification circuit, secondary side components, interconnecting piece and control unit, during the control unit works at one or during continuous work, the connection status of interconnecting piece is switched between first state and the second state, first state is the state of normal driving load, and the second state is the state not driven between first state and completely between the state of load.Thus, it is possible to shorten the clutch Connection Time without additional component from the angle of control mode, productivity is improved while not improving component costs.

Description

Supply unit
Technical field
The present invention relates to a kind of supply units, are filled more particularly to a kind of power supply that can shorten the clutch Connection Time It sets.
Background technology
In the past, in supply unit, in order to transmission system therein be connected or disconnected (for example, the rotation by motor is defeated Go out and connected or disconnected with load), for example, it is known that having by directly controlling the voltage/current in clutch, to control clutch The method of connection status.The method of connection status as this control clutch, such as there is known described in patent document 1 Method.
In the patent document 1, correctly controlled by controlling the electric current in clutch coil to realize when no CPU Clutch processed, specifically, at first by maximum current I1 in clutch, later in clutch by one slightly Small electric current I2.But it is not recognize that clutch by breaking when not having CPU after all in patent document 1 The problem of reaching binding time when connection.In addition, so far, in order to shorten the Connection Time of clutch, in the industry more Only replace the better clutch of performance, simple increases cost.
Patent document 1:Japanese Unexamined Patent Publication 2016-070348
Invention content
The present invention be it is completed to solve the above problems, its purpose is to provide it is a kind of can be from the angle of control mode Degree, which sets out, shortens the clutch Connection Time without additional component, and productive power supply is improved while not improving component costs Device.
(1) a kind of supply unit, has:Primary side components receive alternating voltage;Rectification circuit, to above-mentioned first The alternating voltage that grade sidepiece part receives carries out rectification and obtains DC voltage;Secondary side components, to load supply by above-mentioned whole DC voltage after current circuit rectification;And interconnecting piece, above-mentioned secondary side components and above-mentioned load are connected, the supply unit It is characterized in that also there is control unit, during working at one or during continuous work, by the connection status of above-mentioned interconnecting piece It being switched between first state and the second state, above-mentioned first state is the state of the above-mentioned load of normal driving, above-mentioned Two-state is the state not driven between above-mentioned first state and completely between the state of above-mentioned load.
According to the structure, during being worked at one due to utilization control unit or during continuous work, by above-mentioned interconnecting piece Connection status switched between first state and the second state, so can from the angle of control mode shorten from The clutch Connection Time without additional component, improves productivity while not improving component costs.
(2) in the supply unit recorded in above-mentioned (1), above-mentioned control unit passes through the supply that the above-mentioned interconnecting piece of opposite direction supplies Voltage is controlled, and is switched between above-mentioned first state and above-mentioned second state.
According to the structure, it can supply voltage to shorten the clutch Connection Time by control, not have to concern EMI (electricity Magnetic disturbance:Electro-Magnetic Interference).
(3) in the supply unit recorded in above-mentioned (1), above-mentioned control unit is by believing the REM for controlling above-mentioned interconnecting piece It number is controlled, and is switched between above-mentioned first state and above-mentioned second state.
According to the structure, the clutch Connection Time can be shortened by Pulse Width Control REM signals, not only circuit it is simple and And conducive to energy saving.
(4) in the supply unit recorded in above-mentioned (1), above-mentioned control unit is when above-mentioned supply unit is in standby By the service voltage of opposite above-mentioned interconnecting piece supply is controlled between above-mentioned first state and above-mentioned second state into Row switching, when above-mentioned apparatus is in sleep state or power save mode by being carried out to the REM signals for controlling above-mentioned interconnecting piece It controls and is switched between above-mentioned first state and above-mentioned second state.
According to the structure, control mode can be changed according to equipment state, selection is by way of controlling service voltage (applying a small voltage to load when not driving condition) or (existed by way of Pulse Width Control REM signals It is consistent when applying alive maximum value with complete driving condition not when driving condition, but only discontinuous application passes through The mode of pulsed drive applies so that the effective voltage for loading acquisition is maintained at a small value) come when shortening clutch connection Between, to play the effect of two kinds of control modes comprehensively.
(5) in the supply unit recorded in above-mentioned (1)~(4), under above-mentioned second state, according to the kind of above-mentioned load Class and determine to be intended to above-mentioned first state or be intended to the above-mentioned state for not driving above-mentioned load completely.
According to the structure, critical voltage under the second state or REM signals can be determined according to the type of load The size of duty ratio improves adaptability.
(6) in the supply unit recorded in above-mentioned (5), under above-mentioned second state, the electricity needed for above-mentioned load is driven Pressure is lower, then is more intended to the above-mentioned state for not driving above-mentioned load completely.
According to the structure, the size of critical voltage can be determined according to the voltage needed for load, improves adaptability.
(7) in the supply unit recorded in above-mentioned (1)~(6), above-mentioned load is registration roller, in above-mentioned first state Under, paper is transported using above-mentioned registration roller, under above-mentioned second state, using above-mentioned registration roller to the inclination of paper into Row adjustment, above-mentioned control unit is after above-mentioned registration roller is adjusted the inclination of paper from above-mentioned second state to above-mentioned first State switches over.
According to the structure, the state of registration roller can be rapidly changed after the inclination for having adjusted paper, shorten registration roller With the Connection Time of clutch.
(8) in the supply unit recorded in above-mentioned (1), also there is receiving part, received from user about above-mentioned the The information of two-state, above-mentioned control unit according to the information about above-mentioned second state control above-mentioned second state be intended to it is above-mentioned First state is still intended to the above-mentioned state for not driving above-mentioned load completely.
According to the structure, second state that can be controlled according to the information about the second state be intended to first state or It is intended to not drive the state of above-mentioned load completely, controls required electric power according to the demand of user, reach effective control of energy consumption System.
(9) in the supply unit recorded in above-mentioned (1), also have elastomeric element, be set to above-mentioned interconnecting piece with it is upper Between stating load, when powering to above-mentioned interconnecting piece, above-mentioned interconnecting piece overcomes the rebound gravitational attraction of above-mentioned elastomeric element above-mentioned negative Load to which above-mentioned load is connect with above-mentioned interconnecting piece and is disconnected with rotation output, and then becomes and does not drive above-mentioned load completely State, when disconnection is powered to above-mentioned interconnecting piece, above-mentioned interconnecting piece is exported by the screen resilience of above-mentioned elastomeric element to rotation Direction is mobile and is connected with rotation output, and then becomes first state.
During being worked at one due to utilization control unit or during continuous work, by the connection status of clutch first It is switched between state and the second state, so the clutch Connection Time can be shortened from the angle of control mode Without additional component, productivity is improved while not improving component costs.
(10) a kind of image forming apparatus, which is characterized in that have the power supply dress described in any one of claim 1-9 It sets.
Description of the drawings
Fig. 1 is the schematic diagram for indicating clutch operation principle.
Fig. 2 is the schematic diagram for indicating clutch driving circuit.
Fig. 3 is the schematic diagram for indicating clutch load control.
Fig. 4 is the schematic diagram for the structure for indicating the supply unit of the present invention.
Fig. 5 is the schematic diagram for the clutch load control for indicating the first embodiment of the present invention.
Fig. 6 is the schematic diagram for the clutch load control for indicating second embodiment of the present invention.
Fig. 7 is the flow chart of the control method of the supply unit of the present invention.
Fig. 8 is the schematic diagram of the operation principle of the transmission system for the supply unit for indicating the variation of the present invention.
Reference sign:
101 ... motors;102 ... gear sets;103 ... clutches;104 ... axis;105 ... rollers;201 ... AC powers;202… Main switch;203 ... primary side components;204 ... rectification circuits;205 ... secondary side components;206 ... control units;207 ... linking parts; 208 ... loads;T1 ... the Connection Time;V1 ... critical voltages;V2 ... operating voltages;301 ... motors;302 ... springs;303 ... from Clutch;304 ... axis;305 ... rollers.
Specific implementation mode
Hereinafter, the preferred embodiment of the present invention is described in detail based on attached drawing.In addition, for people in the art For member, their a variety of alternatives can be realized under the enlightenment of these embodiments, moreover, the present invention is not limited thereto Locate the preferred embodiment of explanation.
Fig. 1 is the schematic diagram for indicating clutch operation principle.As shown in Figure 1, the transmission system in supply unit has:Horse Up to 101, the gear set 102 that is connect with motor 101, connect with gear set 102 as interconnecting piece clutch 103, pass through to The axis 104 and one for such as metal material that clutch 103 is powered or powered off and connected or disconnected relative to clutch 103 It is set to the roller 105 of axis 104.
If motor 101 starts and exports rotation, clutch 103 is via gear set 102 and as motor 105 revolves together Turn.If at this point, powering to clutch 103, clutch 103 generates magnetism because of electromagnetic induction principle and attracts axis 104, to Axis 104 is connect with clutch 103, and axis 104 and roller 105 rotate together with clutch 103.If at this point, disconnecting to clutch 103 power supply, then magnetic to disappear, axis 104 is disconnected with clutch 103, to which axis 104 and roller 105 stall.
Fig. 2 is the schematic diagram for indicating clutch driving circuit.As shown in Fig. 2, clutch driving circuit has:Export REM Signal (control signal:Remote Signal) CPU (central processing units:Central Processing Unit), TR1 it is (brilliant Body pipe:) and clutch 103 Transistor.
If CPU exports REM signals, TR1 is opened and clutch is made to work.On the contrary, if CPU does not export REM signals, TR1 is closed and clutch is made to be stopped.
In supply unit, controlled to various load supplyings by controlling clutch.Even if also, also same in MFP Sample uses clutch to control to various load supplyings.
For example, as load, ADF registration rollers can be enumerated, be fixed prelocalization roller, various carrying rollers, for detecting paper Deng sensor, CPU etc..
As the method that powers to the load of control, there is known control clutch, using clutch connection secondary-side circuitry with The method of load, for example, control REM method.Specifically, opening signal and shutdown signal by changing REM, to switch State that clutch is fully connected, the state being kept completely separate.
Specifically, as shown in figure 3, in the case where being not desired to drive shaft, REM signals are not exported, to clutch and axis Disconnect and as the not state of drive shaft completely.In the case where thinking drive shaft, REM signals are exported, to which clutch and axis connect Connect and become the state of normal driving axis.For clutch load control, ideally after exporting REM signals, Clutch attracts axis that it is made to be rotated with defined speed at once, however actual conditions are needed until clutch attracts axis completely Want the regular hour, i.e., the Connection Time T1 of clutch and axis, in Fig. 3, and the Connection Time T1 that has to be can not It avoids.
Next, being illustrated to the structure of the supply unit of the present invention with reference to Fig. 4.
As shown in figure 4, the supply unit of the present invention has:AC power 201, output AC voltage (such as 220V is handed over Galvanic electricity pressure);Main switch 202 is used to be switched on or switched off AC power 201;Primary side components 203 are used to receive to be selfed The alternating voltage in galvanic electricity source 201;Rectification circuit 204 carries out rectification to the alternating voltage that primary side components 203 receive and obtains DC voltage (such as 24V or so DC voltages);Secondary side components 205, via control unit 206 (such as control base board) and Linking part 207 (such as clutch) is to load 208 (such as roller etc.) supply by the DC voltage after 204 rectification of rectification circuit.
Next, being illustrated to the specific implementation mode for reducing the Connection Time with reference to Fig. 5, Fig. 6.
For convenience of description, the state of normal driving axis is known as first state, by the not state of drive shaft, i.e. electric completely State when pressure is for 0V or without input control signal is known as the third state, will be between first state and the third state State be known as the second state.
< first embodiments >
Fig. 5 is the schematic diagram for the clutch load control for indicating the first embodiment of the present invention.In the present invention, it loads Such as including following mechanism.I.e., as load, including ADF registration rollers, fixing prelocalization roller, various carrying rollers, for detecting paper Open equal sensor, CPU etc..
As shown in figure 5, in the case where being not desired to axis of the driving as load, control unit is supplied to the clutch as interconnecting piece (i.e., axis attract and the voltage of the critical condition without attraction, in other words, right to preset critical voltage V1 The voltage for the critical condition that axis will be attracted) and REM signals are not exported, at the connection status to make clutch and axis In the second state.In the case where thinking driving load, the critical voltage V1 supplied to clutch is promoted to work electricity by control unit Press V2 (in the present invention be, for example, 24V, but not limited to this, can as the case may be such as load type and arbitrarily become REM signals more) and with 100% duty ratio are exported, to make the connection status of clutch and axis from the second state to first State switches.
In the present embodiment, pass through opposite clutch during working at one using control unit or during continuous work The service voltage of supply, which is controlled, switches the connection status of clutch from the second state to first state, and by clutch Connection status from the third state directly to first state switch existing situation compare, can be from the angle of control mode Shorten the clutch Connection Time without additional component, productivity is improved while not improving component costs.
It should be noted that clutch is coil component, if applying voltage to it, clutch can be produced because of electromagnetic induction principle Magnetisation and attract axis, and voltage is bigger, and attraction is bigger.Accordingly, there exist to axis carry out attract with without the upper of attraction State critical voltage V1.As described in above-mentioned first embodiment, be not desired to attract axis when apply critical voltage V1 and REM signals are not exported, it is defeated with 100% duty ratio while wanting that critical voltage V1 is risen to operating voltage V2 by the when of attracting axis Go out REM signals, to which compared to existing situation the Connection Time can be shortened from the angle of control mode.
In addition, for " critical voltage V1 " needed for the attended operation for making clutch and axis, it is even identical from Clutch also can be different because of load, place difference.If load is more and/or bigger, critical voltage V1 is also bigger. For example, for ADF registration rollers (load is smaller), critical voltage V1 can be set as 10V;For agent localization roller (load compared with Greatly), critical voltage V1 can be set as 15V.
Simultaneously as the manufacturing condition of clutch is different and component has differences each other, so being even applied to same The same part in one place, there is also the possibilities that critical voltage V1 changes.Therefore, to be not necessarily reduced to this critical Voltage V1, it may be considered that given voltage is adjusted according to the requirement of user, i.e., in a manner of with affluence is to a certain degree reduced Voltage value (designated value), controls required electric power according to the demand of user as a result, reaches effective control of energy consumption.For example, being directed to Critical voltage can be set to be slightly less than 10V by ADF registration rollers, for agent localization roller, can be set to omit by critical voltage Less than 15V.
< second embodiments >
Fig. 6 is the schematic diagram for the clutch load control for indicating second embodiment of the present invention.
As shown in fig. 6, in the case where being not desired to axis of the driving as load, control unit is supplied to the clutch as interconnecting piece (it is, for example, in the present invention 50%, but it is not limited to this, can be according to specific to operating voltage V2 and with certain duty ratio Situation such as load type changes) pulse output REM signals, to make the connection status of clutch and axis be in the second shape State.In the case where thinking driving load, the duty ratio that control unit keeps output services voltage V2 constant and with 100% exports REM signals, to make the connection status of clutch and axis switch from the second state to first state.
In the present embodiment, by controlling clutch during being worked at one using control unit or during continuous work The REM signals of device are controlled the duty ratio of REM signals (control) by the connection status of clutch from the second state to first State switch, similarly to the first embodiment, with by the connection status of clutch from the third state directly to first state The existing situation of switching is compared, and can shorten the clutch Connection Time from the angle of control mode without additional component, Productivity is improved while not improving component costs.
For above-mentioned first embodiment and second embodiment, both sides respectively have advantage and disadvantage.For example, the One embodiment uses voltage-controlled method, does not have to concern EMI (electromagnetic interferences:Electro-Magnetic Interference), but circuit is complicated and be unfavorable for energy saving.In contrast, second embodiment uses pulse controlled side Method, circuit simple (without generating the circuit of the voltage value other than such as 24V) and conducive to energy saving, but worry EMI.It should say It is bright, it is talked about if it is the equipment with accumulator as MFP, then on the contrary need not especially need to consider power saving.
For this purpose, in practical applications, however it is not limited to individually implement above two control method, it can be according to supply unit institute Two kinds of control methods are applied in combination in the state (pattern) at place.For example, control unit can lead to when supply unit is in standby The service voltage for crossing opposite clutch supply is controlled and is switched between first state and the second state, is filled in power supply It sets and is in sleep state (so-called sleep state is exactly the state that machine in-line power is cut off comprehensively) or power save mode (so-called section Can state be main power source cut-out inside machine state) when by controlling the REM signals for controlling clutch the It is switched between one state and the second state.So, control mode can be changed according to equipment state, selection is to pass through Control service voltage still shortens the clutch Connection Time by Pulse Width Control REM signals, to play two kinds of controls comprehensively The effect of mode.
In addition, as described above, the size of the duty ratio of critical voltage or REM signals is not fixed, it can basis The type of load is adjusted, i.e., in the second condition, is determined to be intended to first state according to the type of load or be become To in the third state, if for example, the voltage needed for driving load is lower, more it is intended to the third state.
Specifically, the supply unit of the present invention has receiving part, the information about the second state is received from user, Control unit is intended to first state according to the second state of information control about the second state or is intended to not drive completely The state of load.As receiving part, operation panel can have been enumerated.For example, when MFP is connect by network with various terminals, Smart mobile phone or PC become receiving part.
In addition, for the concrete application of above-mentioned first embodiment and second embodiment, lifts ADF and (remove automatically Send device:Automatic Direction Feeder) it illustrates for registration roller, in the first state, positioned using ADF Roller transports paper, in the second condition, is adjusted to the inclination of paper using ADF registration rollers, after the adjustment from Second state is switched over to first state.Thereby, it is possible to the shape of registration roller is rapidly changed after the inclination for having adjusted paper State shortens the Connection Time of registration roller and clutch.According to experiment it is found that implementing by above-mentioned first embodiment and second The clutch load control method of mode applied to ADF equipment after the Connection Time can be greatly shortened, by productivity from 55ppm is promoted to 57ppm (opening/minute).
Hereinafter, being illustrated to the control method of the supply unit of the present invention with reference to Fig. 7.
Fig. 7 is the flow chart of the control method of the supply unit of the present invention.As shown in fig. 7, in the flow chart, it is main to wrap Include following steps:
In step S01, equipment main power source is opened, and enter step S02.
In step S02, whether equipment is judged in sleep pattern.
In the case where judging result is "Yes", exports the service voltage of 24V and exported with specified duty cycle pulse REM signals (step S03), and to whether enter printing etc. continuous conveyings paper mode judged (step S04), if judge As a result it is "Yes", then enters step S07, if judging result is "No", return to step S03.
In the case where judging result is "No", it is reduced to critical voltage (for example, for ADF registration rollers service voltage When be reduced to " 10V ", be reduced to when registration roller based on " 15V ") and do not export REM signals (step S05), and to whether It enters the continuous conveyings paper modes such as printing and is judged (step S06), if judging result is "Yes", enter step S07, If judging result is "No", return to step S05.Though it should be noted that lift used when for registration roller voltage-controlled situation for Example is illustrated, but not necessarily to use voltage to control when for registration roller, can also use pulse as the case may be Control.
In step S07, whether voltage value (sensing is changed as sequence of movement to the sensor of paper transportation path Device is opened) judged.
In the case where judging result is "Yes", exports the service voltage of 24V and REM is exported with 100% duty ratio Signal (step S08 or step S09), to make clutch and axis connection (step S10), and enters step S14.
In the case where judging result is "No", service voltage is reduced to 0V (step S11), is judged as paperboard at this time (S12), and wrong (S13) is prompted.
In step S14, whether voltage value (sensing is changed as sequence of movement to the sensor of paper transportation path Device is closed) judged.
In the case where judging result is "Yes", exports the service voltage of 24V and exported with specified duty cycle pulse It REM signals (step S15) or closes REM signals and simultaneously exports critical voltage (step S16), to cut-off clutch and axis It connects (step S17).
In the case where judging result is "No", service voltage is reduced to 0V (step S18), is judged as paperboard at this time (S19), and wrong (S20) is prompted.
< variations >
Fig. 8 is the schematic diagram of the operation principle of the transmission system for the supply unit for indicating the variation of the present invention.
As shown in figure 8, in the variation, the position of clutch 303 is had adjusted for the existing transmission system in Fig. 1 It sets, so that it is located at the side opposite with motor 301 relative to axis 304, while being provided with work between clutch 303 and axis 304 For the spring 302 of elastomeric element.
In this configuration, motor 301 starts and exports rotation, if at this point, to the power supply of clutch 303, clutch 303 because Electromagnetic induction principle and generate magnetism and overcome the rebound gravitational attraction axis 304 of spring, connect simultaneously with clutch 303 to axis 304 It is disconnected with motor 301 and becomes non-rotary state.If at this point, disconnecting the power supply to clutch 303, axis 304 is by spring 302 screen resilience is moved to motor 301 and is formed by connecting as the state normally rotated with motor 301.
The load of the clutch of above-mentioned first embodiment and second embodiment can be similarly applied for the structure Control method.Here, the clutch load control method for lifting first embodiment illustrates.Do not want to make clutch 303 with In the case that axis 304 connects, control unit supplies critical voltage to clutch 303 and does not export REM signals, to make clutch 303 are in the second state with the connection status of axis 304.In the case where wanting that clutch 303 is made to connect with axis 304, control unit will The critical voltage supplied to clutch 303 is promoted to operating voltage and exports REM signals with 100% duty ratio, thus gram Taking the elastic force of spring makes clutch 303 and the connection status of axis 304 switch from the second state to first state.
In the variation, during being worked at one due to utilization control unit or during continuous work, by clutch Connection status switches between first state and the second state, so can shorten clutch from the angle of control mode The device Connection Time without additional component, improves productivity while not improving component costs.
It should be understood that the above-mentioned specific implementation mode of the present invention is used only for exemplary illustration or explains the present invention's Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing Change example.

Claims (10)

1. a kind of supply unit, has:Primary side components receive alternating voltage;Rectification circuit, to the primary side The alternating voltage that part receives carries out rectification and obtains DC voltage;Secondary side components, to load supply by the rectification circuit DC voltage after rectification;And interconnecting piece, the secondary side components and the load are connected,
The supply unit is characterized in that,
Also there is control unit, during working at one or during continuous work, by the connection status of the interconnecting piece the It is switched between one state and the second state,
The first state is the state loaded described in normal driving,
Second state is the state not driven between the first state and completely between the state of the load.
2. supply unit according to claim 1, which is characterized in that
The control unit is controlled by the service voltage of the opposite interconnecting piece supply, and the first state with it is described It is switched between second state.
3. supply unit according to claim 1, which is characterized in that
The control unit is by controlling the REM signals for controlling the interconnecting piece, and in the first state and described the It is switched between two-state.
4. supply unit according to claim 1, which is characterized in that
The control unit when the supply unit is in standby by the service voltage of the opposite interconnecting piece supply into Row control and switched between the first state and second state, the supply unit be in sleep state or In the first state and second shape by controlling the REM signals for controlling the interconnecting piece when person's power save mode It is switched between state.
5. the supply unit according to any one of Claims 1 to 4, which is characterized in that
In said second condition, it determines to be intended to the first state according to the type of the load or is intended to institute State the state for not driving the load completely.
6. supply unit according to claim 5, which is characterized in that
In said second condition, drive the voltage needed for the load lower, then be more intended to it is described do not drive completely it is described The state of load.
7. supply unit according to claims 1 to 6, which is characterized in that
The load is registration roller,
In said first condition, paper is transported using the registration roller,
In said second condition, the inclination of paper is adjusted using the registration roller,
The control unit is after the registration roller is adjusted the inclination of paper from second state to first shape State switches over.
8. supply unit according to claim 1, which is characterized in that,
Also there is receiving part, the information about second state is received from user,
It is to be intended to the first state that the control unit controls second state according to the information about second state Still it is intended to the state for not driving the load completely.
9. supply unit according to claim 1, which is characterized in that
Also there is elastomeric element, be set between the interconnecting piece and the load,
When powering to the interconnecting piece, the interconnecting piece overcomes to be loaded described in the rebound gravitational attraction of the elastomeric element, to The load connect with the interconnecting piece and is disconnected with rotation output, and then becomes the state for not driving the load completely,
Disconnect power to the interconnecting piece when, the interconnecting piece by the elastomeric element screen resilience to rotation export side It is connected to movement with rotation output, and then becomes first state.
10. a kind of image forming apparatus, which is characterized in that have the supply unit described in any one of claim 1-9.
CN201710026202.7A 2017-01-13 2017-01-13 Power supply device Active CN108302134B (en)

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CN108302134B CN108302134B (en) 2019-10-18

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