JP2002010492A - Electronic equipment - Google Patents
Electronic equipmentInfo
- Publication number
- JP2002010492A JP2002010492A JP2000192255A JP2000192255A JP2002010492A JP 2002010492 A JP2002010492 A JP 2002010492A JP 2000192255 A JP2000192255 A JP 2000192255A JP 2000192255 A JP2000192255 A JP 2000192255A JP 2002010492 A JP2002010492 A JP 2002010492A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- power
- energy
- saving
- noise filter
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は電子機器装置に関
し、さらに詳しくは、省エネ手段を有する画像形成装置
等の電子機器装置において、消費電力の少ない待機状態
の省エネモードにおいて、無効電力を少なくすることが
できる電子機器装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic apparatus, and more particularly, to reducing reactive power in an energy saving mode in a standby state with low power consumption in an electronic apparatus such as an image forming apparatus having energy saving means. The present invention relates to an electronic device capable of performing the following.
【０００２】[0002]
【従来の技術】電子機器装置の省エネ対応のため、電子
機器装置の待機時と動作時で電源を切替えることが行わ
れている。そして、待機時と動作時では電子機器装置で
消費する電力が大きく異なるため、電力に応じて電源を
切り替え、電源の変換効率が良い状態で動作するように
している。2. Description of the Related Art In order to cope with energy saving of electronic equipment, a power supply is switched between a standby state and an operation of the electronic equipment. Since the power consumed by the electronic device greatly differs between the standby state and the operation time, the power supply is switched according to the power so that the operation is performed in a state where the power supply conversion efficiency is good.
【０００３】図５は、従来の省エネ手段を有する電子写
真方式の画像形成装置の構成を示す図で、電源部及び定
着部を示している。なお、定着部の構成については一例
を示すものであって、普通紙上に転写されたトナー像を
熱及び圧力により融着する定着工程を実施する部分であ
るが、本発明の電子機器装置の要旨ではないので詳細な
説明は省略する。図５に示された画像形成装置のメイン
スイッチ６が投入されると、直流電源７の第１の電源で
ある省エネ電源８が起動し、省エネ制御手段１２が起動
する。これにより、電子機器装置は省エネ状態すなわち
待機状態となる。次に、省エネ解除スイッチ１５が押下
されると、装置全体を起動するため省エネ制御手段１２
は第２の電源である主電源９を起動するため主電源リレ
ー１６に通電し、その主電源リレー接点１６ｓをオンす
る。これにより、ＡＣ電源１がノイズフィルタ３を介し
て主電源９に供給され、画像形成装置全体を制御してい
る本体制御手段１７が起動し、プリント可能な状態とな
る。主電源９は、入力電流の高調波を抑制するアクティ
ブフィルタ１０からなる力率改善回路とメイン電源であ
るＤＣ／ＤＣコンバータ１１で構成してある。なお、一
点鎖線内の定着部はドアスイッチ１３等によってＡＣ電
源１の供給が制御される。FIG. 5 is a diagram showing a configuration of an electrophotographic image forming apparatus having a conventional energy saving means, showing a power supply unit and a fixing unit. The configuration of the fixing unit is merely an example, and is a part for performing a fixing step of fusing a toner image transferred onto plain paper by heat and pressure. Therefore, detailed description is omitted. When the main switch 6 of the image forming apparatus shown in FIG. 5 is turned on, the energy-saving power supply 8, which is the first power supply of the DC power supply 7, is activated, and the energy-saving control means 12 is activated. As a result, the electronic apparatus enters an energy saving state, that is, a standby state. Next, when the energy-saving release switch 15 is pressed, the energy-saving control means 12 is activated to activate the entire apparatus.
Turns on the main power supply relay 16 to activate the main power supply 9 which is the second power supply, and turns on the main power supply relay contact 16s. As a result, the AC power supply 1 is supplied to the main power supply 9 via the noise filter 3, and the main body control means 17, which controls the entire image forming apparatus, is activated to be in a printable state. The main power supply 9 includes a power factor improvement circuit including an active filter 10 for suppressing harmonics of an input current, and a DC / DC converter 11 as a main power supply. Note that the supply of the AC power 1 to the fixing unit within the dashed line is controlled by the door switch 13 and the like.
【０００４】このような従来の画像形成装置の電源入力
には、この装置で発生するノイズ及び商用電源ラインを
介して画像形成装置に入力するノイズを抑制するノイズ
フィルタ３やサージを吸収するアレスタ５等が設けてあ
る。これらノイズを抑制する手段は、装置から発生する
ノイズが最も大きくなる動作時に性能を満足するように
設定されている。このため、画像形成装置での消費電力
が少ない省エネ待機時には、画像形成装置内で発生する
ノイズに対してオーバースペックな状態となっている。
これにより、省エネ状態の待機時に画像形成装置には図
６に示すような波形の入力電流ＩＡＣが流れる。入力電
流はＡＣ電源の電圧ＶＡＣに対し位相が９０°進んだ成
分が主体となっており、省エネ電源に流れる同相のピー
ク電流Ｉｐが合成されている。この進相電流が発生する
箇所を解析すると、大部分がノイズフィルタ３で発生し
ていることが分かった。この電流は画像形成装置の動作
電流に比べ充分小さい電流であり、電源電圧と位相がず
れているため消費電力としては僅かなものであるが、待
機時の入力電流に占める割合は大きく、無効電力の大部
分を占めている。このため、従来の画像形成装置では待
機時の力率は良くなかった。A power input of such a conventional image forming apparatus includes a noise filter 3 for suppressing noise generated in the apparatus and noise input to the image forming apparatus via a commercial power supply line, and an arrester 5 for absorbing surge. Etc. are provided. These means for suppressing noise are set so as to satisfy the performance at the time of operation in which the noise generated from the device is the largest. For this reason, when the image forming apparatus is in the energy-saving standby state where the power consumption is small, it is over-specified with respect to the noise generated in the image forming apparatus.
As a result, the input current IAC having a waveform as shown in FIG. 6 flows through the image forming apparatus during standby in the energy saving state. The input current mainly includes a component whose phase is advanced by 90 ° with respect to the voltage VAC of the AC power supply, and an in-phase peak current Ip flowing to the energy-saving power supply is synthesized. Analysis of the location where the phase-advance current occurs indicates that most of the location is generated by the noise filter 3. This current is sufficiently smaller than the operating current of the image forming apparatus, and has a small power consumption because it is out of phase with the power supply voltage. Accounts for most of the For this reason, the power factor during standby was not good in the conventional image forming apparatus.
【０００５】また、ノイズ対策部品に定数可変機能を設
け、検出したノイズ信号に応じて定数を決定する電子制
御装置が、特開平１１−２３５０１６号公報（エアコン
電子制御装置）によって知られているが、この従来例に
おいては、マイコンによる制御状態に応じてフィルタの
定数を切り替えているので、装置内で発生するノイズが
急峻な場合は切り替えのための制御時間分の遅れが生じ
るので、装置の外部にノイズが流失する可能性がある。[0005] An electronic control device that provides a constant variable function to a noise suppression component and determines a constant in accordance with a detected noise signal is known from Japanese Patent Application Laid-Open No. 11-235016 (air conditioner electronic control device). However, in this conventional example, the filter constant is switched according to the control state of the microcomputer. If the noise generated in the device is steep, a delay corresponding to the control time for switching occurs. Noise may be lost.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、上述のよう
な従来例が引き起こす現象に注目し、省エネ待機時の入
力電流を低減する省エネタイプの電子機器装置を提供す
ることを目的とし、具体的には入力の無効電力を低減す
る電源装置を提供することである。また、電源の状態と
関連付けてノイズフィルタの定数を切り替え、更に切り
替えタイミングをフィルタ切り替え後に電源をオンオフ
制御するようにして、ノイズの流失が発生しない電源装
置を提供することである。SUMMARY OF THE INVENTION It is an object of the present invention to provide an energy-saving type electronic apparatus in which the input current during the energy-saving standby is reduced by focusing on the phenomenon caused by the above-described conventional example. It is an object of the present invention to provide a power supply device for reducing the input reactive power. Another object of the present invention is to provide a power supply device in which noise is not lost by switching a constant of a noise filter in association with a state of a power supply, and further controlling the power supply to be turned on / off after the filter is switched.
【０００７】[0007]
【課題を解決するための手段】本発明は、上記課題を解
決するためになされたもので、その第１の技術手段は、
ノイズフィルタを介してＡＣ電源が供給される第１の電
源装置と、該第１の電源装置からの電源の供給により起
動する第１の制御手段と、該第１の制御手段によりオン
オフ制御される第２の電源装置と、該第２の電源装置か
らの電源の供給により起動する第２の制御手段と、前記
第１の制御手段に入力する省エネ解除の信号を生成する
省エネ解除手段とを有する電子機器装置において、該省
エネ解除手段の出力に応じて前記第２の電源装置に前記
ＡＣ電源を供給するとともに、前記ノイズフィルタの定
数を切り換えることを特徴とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the first technical means is as follows.
A first power supply to which AC power is supplied via a noise filter, a first control unit which is activated by the supply of power from the first power supply, and an on / off control by the first control unit A second power supply unit, a second control unit that is activated by power supply from the second power supply unit, and an energy saving cancellation unit that generates an energy saving cancellation signal to be input to the first control unit. In the electronic device, the AC power is supplied to the second power supply according to the output of the energy saving canceling unit, and the constant of the noise filter is switched.
【０００８】第２の技術手段は、第１の技術手段の電子
機器装置において、前記省エネ解除手段により前記ノイ
ズフィルタの定数を切り換えた後に、前記第２の電源装
置をオンすることを特徴とする。[0008] A second technical means is the electronic equipment of the first technical means, wherein the second power supply device is turned on after the constant of the noise filter is switched by the energy saving canceling means. .
【０００９】第３の技術手段は、第１のノイズフィルタ
を介してＡＣ電源が供給される第１の電源装置と該第１
の電源装置からの電源の供給により起動する第１の制御
手段と、第２のノイズフィルタを介してＡＣ電源が供給
される第２の電源装置と、該第２の電源装置からの電源
の供給により起動する第２の制御手段と、前記第１の制
御に入力する省エネ解除の信号を生成する省エネ解除手
段とを有する電子機器装置において、該省エネ解除手段
の出力に応じて、前記第２のノイズフィルタを介して前
記第２の電源装置に前記ＡＣ電源を供給することを特徴
とする。The third technical means includes a first power supply device to which AC power is supplied via a first noise filter, and the first power supply device,
Control means that is activated by the supply of power from the power supply device, a second power supply device to which AC power is supplied via a second noise filter, and power supply from the second power supply device And an energy-saving canceling means for generating an energy-saving canceling signal to be input to the first control, in accordance with an output of the energy-saving canceling means. The AC power is supplied to the second power supply via a noise filter.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施の形態を図１
〜４に示す実施例に基づいて説明する。 （実施例１）図１は、本発明の第１の実施例の電気回路
図である。第１の実施例は、ＡＣ電源を有効に活用し
て、待機時の消費電力が少ない、所謂、省エネ方式の電
子機器装置に関するもので、具体的にはプリンタまたは
複写機である。具体的には、待機時と動作時にＡＣ電源
ラインに接続してあるノイズフィルタの内部の定数を切
り替えることにより、省エネ待機時の入力電流を低減す
る。FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described based on Examples shown in FIGS. (Embodiment 1) FIG. 1 is an electric circuit diagram of a first embodiment of the present invention. The first embodiment relates to a so-called energy-saving electronic device that uses an AC power source effectively and consumes less power in a standby mode, and is specifically a printer or a copier. Specifically, the input current during the energy saving standby is reduced by switching the constant inside the noise filter connected to the AC power supply line during the standby and during the operation.
【００１１】第１の実施例の構成は、電子機器装置のＡ
Ｃ電源１が、サーキットブレーカ２とノイズフィルタ３
を介して入力し、メインスイッチ６を介して直流電源７
に接続されている。ノイズフィルタ３には、内部の定数
を切り替えるためのノイズフィルタ切り換えリレー１４
の接点１４ｓが接続してある。直流電源７は、内部で省
エネ時に必要とする電力を供給する省エネ電源８（第１
の電源装置）と、省エネ状態が解除された時に主電源リ
レー１６の接点１６ｓを介して必要とする電力を供給す
る主電源９（第２の電源装置）に分岐している。省エネ
電源８の出力は省エネ制御手段１２（第１の制御手段）
に接続されている。主電源９（第２の電源装置）は、ア
クティブフィルタ１０と多出力ＤＣ／ＤＣコンバータ１
１で構成してあり、その出力が本体制御手段１７（第２
の制御手段）に接続されている。The configuration of the first embodiment is based on the A
C power supply 1 is composed of circuit breaker 2 and noise filter 3
And a DC power supply 7 through a main switch 6.
It is connected to the. The noise filter 3 has a noise filter switching relay 14 for switching an internal constant.
Are connected. The DC power supply 7 is internally provided with an energy-saving power supply 8 (first
And a main power supply 9 (second power supply) that supplies necessary power via the contact 16s of the main power supply relay 16 when the energy saving state is released. The output of the energy-saving power supply 8 is the energy-saving control means 12 (first control means)
It is connected to the. The main power supply 9 (second power supply) includes an active filter 10 and a multi-output DC / DC converter 1.
1, the output of which is output from the main body control means 17 (second
Control means).
【００１２】省エネ制御手段１２には省エネ解除信号を
生成する省エネ解除スイッチ１５と、ノイズフィルタ３
の定数を切り換えるノイズフィルタ切り換えリレー１４
及び主電源９をオンオフする主電源リレー１６が接続し
てある。The energy saving control means 12 includes an energy saving cancel switch 15 for generating an energy saving cancel signal, and a noise filter 3.
Filter switching relay 14 for switching the constant
And a main power supply relay 16 for turning on and off the main power supply 9 is connected.
【００１３】以上のような構成で、メインスイッチ６を
オンすると、直流電源７の省エネ電源８にＡＣ電源１が
入力し、省エネ電源８が起動する。省エネ電源８の出力
が、省エネ制御手段１２に供給され、省エネ制御手段１
２が起動する。これにより画像形成装置は待機状態であ
る省エネモードとなる。With the above configuration, when the main switch 6 is turned on, the AC power supply 1 is input to the energy saving power supply 8 of the DC power supply 7 and the energy saving power supply 8 is activated. The output of the energy-saving power supply 8 is supplied to the energy-saving control means 12, and the energy-saving control means 1
2 starts. As a result, the image forming apparatus enters the energy saving mode, which is the standby state.
【００１４】省エネモードの状態で、省エネ制御手段１
２に接続された省エネ解除スイッチ１５を押下して、省
エネ解除信号が省エネ制御手段１２に入力すると、省エ
ネ制御手段１２はノイズフィルタ切り換えリレー１４に
通電し、そのノイズフィルタ切り換え接点１４ｓをオン
し、ノイズフィルタ３を高負荷電流に対応できる定数に
切り替えた後、主電源リレー１６に通電し、その接点１
６ｓを介してＡＣ電源１を供給し主電源９を起動する。
主電源９が起動し低圧電源が本体制御手段１７に供給さ
れると、本体制御手段１７が起動し、画像形成装置はプ
リント可能な動作モードに移行する。In the energy saving mode, the energy saving control means 1
When the energy-saving release switch 15 connected to the switch 2 is depressed and the energy-saving release signal is input to the energy-saving control means 12, the energy-saving control means 12 energizes the noise filter switching relay 14 and turns on the noise filter switching contact 14s, After switching the noise filter 3 to a constant that can cope with a high load current, the main power supply relay 16 is energized and its contact 1
The AC power supply 1 is supplied via 6s, and the main power supply 9 is activated.
When the main power supply 9 is activated and the low voltage power supply is supplied to the main body control means 17, the main body control means 17 is activated and the image forming apparatus shifts to a printable operation mode.
【００１５】メインスイッチ６のオンからプリント可能
な状態になるまでの間で、ＡＣ電源１からこの電子機器
装置への入力電力は、そのモードに応じて２段階のステ
ップがある。省エネ電源８と省エネ制御手段１２のみが
起動している省エネモードで、本実施例では約１０Ｗ位
の入力電力となっている。また、装置全体が起動してプ
リント可能な動作モードで、入力電力は約５００Ｗであ
る。The input power from the AC power supply 1 to the electronic apparatus has two steps depending on the mode from the time when the main switch 6 is turned on until the state where printing is possible. In the energy saving mode in which only the energy saving power supply 8 and the energy saving control means 12 are activated, the input power is about 10 W in this embodiment. In addition, the operation mode is such that the entire apparatus is started up and printing is possible, and the input power is about 500 W.
【００１６】動作モードでは、主電源９に設けたアクテ
ィブフィルタ１０の作用により、本装置の力率は、ほぼ
１となっている。また、省エネモードでは、ノイズフィ
ルタ３の定数を切り換えることにより、力率を約０.７
となるようにしてある。また、省エネモード専用の直流
電源８を設けることにより、電源の入出力の変換効率を
負荷電流が少ない同モードにおいても動作モードと同等
の約７０％を得ている。In the operation mode, the power factor of the present apparatus is almost 1 due to the action of the active filter 10 provided in the main power supply 9. In the energy saving mode, the power factor is reduced to about 0.7 by switching the constant of the noise filter 3.
It is made to become. In addition, by providing the DC power supply 8 dedicated to the energy saving mode, the conversion efficiency of the input / output of the power supply is about 70% which is the same as that of the operation mode even in the same mode where the load current is small.
【００１７】以上のように、第１の実施例ではＡＣ電源
１に設けたノイズフィルタ３の定数を装置の消費電力に
応じて切り替えるように構成されているので、１つのノ
イズフィルタ３で常に効率良い、所謂省エネ方式の電子
機器装置を提供することができる。As described above, in the first embodiment, the constant of the noise filter 3 provided in the AC power supply 1 is configured to be switched according to the power consumption of the device. A good so-called energy-saving electronic device can be provided.
【００１８】次に、ノイズフィルタ３の具体例を図２
（Ａ），（Ｂ）に基づいて説明する。図２（Ａ）に示す
ノイズフィルタ３は、入力のコンデンサＣ１がノイズフ
ィルタ切り替えリレー１４の接点１４ｓを介して、抵抗
Ｒ１とともにＡＣ電源１のライン間に接続してある。次
に、コモンモードのチョークコイルＬ１を介して、抵抗
Ｒ２とコンデンサＣ２が出力側のライン間に接続してあ
り、さらにラインと接地間にコンデンサＣ３及びＣ４が
接続してある。ここで、コンデンサＣ１とＣ２は、所
謂、Ｘコンデンサで本実施例では１.５μＦに設定して
あり、Ｃ３とＣ４はＹコンデンサで本実施例では２２０
０ＰＦに設定してある。また、チョークコイルＬ１は３
ｍＨである。Next, a specific example of the noise filter 3 is shown in FIG.
A description will be given based on (A) and (B). In the noise filter 3 shown in FIG. 2A, an input capacitor C1 is connected between a line of the AC power supply 1 and a resistor R1 via a contact 14s of a noise filter switching relay 14. Next, a resistor R2 and a capacitor C2 are connected between the lines on the output side via a common mode choke coil L1, and capacitors C3 and C4 are connected between the line and the ground. Here, the capacitors C1 and C2 are so-called X capacitors, which are set to 1.5 μF in the present embodiment, and C3 and C4 are Y capacitors, which are 220 μF in the present embodiment.
It is set to 0PF. The choke coil L1 is 3
mH.
【００１９】このような構成で、ノイズフィルタ３にＡ
Ｃ電源１が印加されると、ＸコンデンサＣ１，Ｃ２に
は、前述の従来例について説明した図６に示すように、
進相電流が流れる。この電流は電子機器装置の負荷電流
とは無関係にＡＣ電源の電圧に応じた値となる。したが
って、負荷電流（フィルタに流れる装置の入力電流）が
少ない省エネモードでは、進相電流の比率が高くなり力
率が低下し、装置としては電源の効率が悪くなる。この
ため、ノイズフィルタ切り替えリレー１４を非励磁とす
ることによりこの電流が流れないようにすることがで
き、常に力率が低下しないようにすることができる。With such a configuration, the noise filter 3
When the C power supply 1 is applied, the X capacitors C1 and C2 are connected to the X capacitors C1 and C2 as shown in FIG.
Leading phase current flows. This current has a value corresponding to the voltage of the AC power supply irrespective of the load current of the electronic apparatus. Therefore, in the energy saving mode in which the load current (input current of the device flowing through the filter) is small, the ratio of the leading phase current is increased, the power factor is reduced, and the efficiency of the power supply is reduced as the device. Therefore, by making the noise filter switching relay 14 non-energized, this current can be prevented from flowing, and the power factor can always be prevented from lowering.
【００２０】なお、ここではＡＣ電源側のコンデンサＣ
１のみをオンオフするようにしてあるが、ノイズフィル
タ３の出力側のコンデンサＣ２も同様にオンオフするよ
うにしてもよい。また、省エネモードでのノイズ抑制を
強化するため、図２（Ｂ）に示すようにＹコンデンサを
複数設け、負荷電流が少ない時はコンデンサＣ１Ａのみ
オフするようにしても、前述と同様の効果を得ることが
できる。Here, the capacitor C on the AC power supply side is used here.
Although only 1 is turned on and off, the capacitor C2 on the output side of the noise filter 3 may be turned on and off in the same manner. In order to enhance the noise suppression in the energy saving mode, a plurality of Y capacitors are provided as shown in FIG. 2B, and when the load current is small, only the capacitor C1A is turned off. Obtainable.
【００２１】図２（Ａ），（Ｂ）に示すようなノイズフ
ィルタ３の構成とすることにより、負荷電流が変動する
モードを有する電子機器装置においても、常にノイズ抑
制の効果を損なわず高い効率の装置を提供することがで
きる。With the configuration of the noise filter 3 as shown in FIGS. 2A and 2B, even in an electronic apparatus having a mode in which the load current fluctuates, high efficiency can be maintained without impairing the noise suppressing effect. Device can be provided.
【００２２】（実施例２）図３は、本発明の第２の実施
例の電気回路図である。第２の実施例と図１に示す第１
の実施例との相違は、第１の実施例の直流電源７が主電
源１１のみで構成されており、省エネ制御手段１２及び
本体制御手段１７はともに主電源１１から給電され、主
電源１１と本体制御手段１７の間には主電源リレー１６
の接点１６ｓが介在し、省エネモードにおける待機時に
は本体制御手段１７に供給する電源出力のみを遮断する
ように構成されている。第２の実施例では第１の実施例
のものより少ない消費電力の電子機器装置で、省エネモ
ードでは約５Ｗ、動作モードでは約２５０Ｗである。(Embodiment 2) FIG. 3 is an electric circuit diagram of a second embodiment of the present invention. The second embodiment and the first embodiment shown in FIG.
The difference from this embodiment is that the DC power supply 7 of the first embodiment is composed of only the main power supply 11, and both the energy saving control means 12 and the main body control means 17 are supplied with power from the main power supply 11, The main power supply relay 16 is provided between the main body control means 17.
The contact 16s is interposed to cut off only the power output supplied to the main body control means 17 during standby in the energy saving mode. In the second embodiment, the electronic device consumes less power than that of the first embodiment, and consumes about 5 W in the energy saving mode and about 250 W in the operation mode.
【００２３】図３において、電子機器装置が省エネモー
ドの待機時は、ノイズフィルタ切り換えリレー１４の接
点１４ｓと主電源リレー１６の接点１６ｓはともにオフ
状態となっており、省エネ制御手段１２のみに給電され
る。省エネ解除スイッチ１５が押圧され、省エネ制御手
段１２が動作モードに切り替える時に、ノイズフィルタ
切り換えリレー１４の接点１４ｓをオンし、次に主電源
リレー１６の接点１６ｓをオンとする。これにより、第
１の実施例と同様に電子機器装置の全てのモードで高効
率となっている。なお、実施例においては本体制御手段
１７への給電制御をリレーで行なっているが、これは他
のスイッチ手段で行っても良い。In FIG. 3, when the electronic apparatus is in the standby mode in the energy saving mode, the contact 14s of the noise filter switching relay 14 and the contact 16s of the main power supply relay 16 are both in the off state, and power is supplied only to the energy saving control means 12. Is done. When the energy saving release switch 15 is pressed and the energy saving control means 12 switches to the operation mode, the contact 14s of the noise filter switching relay 14 is turned on, and then the contact 16s of the main power relay 16 is turned on. As a result, high efficiency is achieved in all modes of the electronic apparatus in the same manner as in the first embodiment. In the embodiment, the power supply control to the main body control means 17 is performed by a relay, but this may be performed by another switch means.
【００２４】（実施例３）図４は、本発明の第３の実施
例の電気回路図である。第３の実施例では、省エネ制御
手段１２に電源を供給する省エネ電源８と、本体制御手
段１７に給電する主電源９に、それぞれ専用のノイズフ
ィルタ３Ａ，３Ｂを設けてあり、さらに省エネ待機時に
は主電源９に入力するＡＣ電源１を主電源リレー１４の
接点１４ｓでオフするようにしてある。これにより、第
１、第２の実施例のように、ノイズフィルタ３の定数の
切り換えを行なわなくても、省エネ制御手段１２が主電
源リレー１４に通電するだけで、各モードで効率の良い
状態を提供することができる。(Embodiment 3) FIG. 4 is an electric circuit diagram of a third embodiment of the present invention. In the third embodiment, dedicated noise filters 3A and 3B are provided for an energy-saving power supply 8 for supplying power to the energy-saving control means 12 and a main power supply 9 for supplying power to the main body control means 17, respectively. The AC power supply 1 input to the main power supply 9 is turned off at the contact 14s of the main power supply relay 14. Thus, as in the first and second embodiments, the energy-saving control means 12 merely supplies power to the main power supply relay 14 without switching the constant of the noise filter 3, thereby achieving an efficient state in each mode. Can be provided.
【００２５】また、第３の実施例では省エネ制御手段１
２の誤動作等でノイズフィルタ３Ａ，３Ｂの切り換えの
タイミングがずれてもノイズが発生することがなく、よ
り信頼性の高い装置を提供することができる。これによ
り、待機時には少ない負荷電流に応じた小容量の専用の
ノイズフィルタ３Ａのみに通電されるので、第１、第２
の実施例と同様の効果を得ることができる。In the third embodiment, the energy-saving control means 1
Even if the switching timing of the noise filters 3A and 3B is shifted due to a malfunction or the like of 2, the noise does not occur and a more reliable device can be provided. As a result, during standby, only the small-capacity dedicated noise filter 3A corresponding to the small load current is energized.
The same effect as that of the embodiment can be obtained.
【００２６】[0026]
【発明の効果】本発明は、以上のような構成であるの
で、次のような効果を奏する。請求項１に係る発明によ
れば、電源スイッチを投入したときにＡＣ電源が供給さ
れる第１の電源装置（省エネ電源）と第１の電源装置か
らの電源の供給により起動する第１の制御手段（省エネ
制御手段）と第１の制御手段により出力がオンオフ制御
される第２の電源装置（主電源）と第２の電源装置から
の電源の供給により起動する第２の制御手段（本体制御
手段）と第１の制御手段に入力する省エネ解除の信号を
生成する省エネ解除手段（省エネ解除スイッチ）とを有
する電子機器装置において、省エネ解除手段の出力に応
じて電子機器装置に入力するＡＣ電源に挿入されたノイ
ズフィルタの定数を切り替えるようにしたので、電子機
器装置の消費電力の大きさに無関係に常に高い電源効率
の電子機器装置を提供することができる。特に消費電力
の少ない待機状態の省エネモードにおいて、無効電力を
少なくすることができる。Since the present invention has the above-described structure, the following effects can be obtained. According to the first aspect of the present invention, the first power supply (energy saving power supply) to which AC power is supplied when the power switch is turned on, and the first control activated by the supply of power from the first power supply. Means (energy-saving control means), a second power supply (main power supply) whose output is on / off controlled by the first control means, and a second control means (main body control) activated by supply of power from the second power supply. Means) and an energy saving canceling means (energy saving canceling switch) for generating an energy saving canceling signal to be input to the first control means, wherein an AC power supply is input to the electronic equipment according to the output of the energy saving canceling means. Since the constant of the noise filter inserted into the electronic device is switched, it is possible to provide an electronic device having high power efficiency regardless of the power consumption of the electronic device. In particular, the reactive power can be reduced in the energy saving mode in the standby state with low power consumption.
【００２７】請求項２に係る発明によれば、省エネ解除
手段によりノイズフィルタの定数を切り替えた後に第２
の電源装置の出力をオンするようようにしたので、ひと
つのノイズフィルタの定数を切り替えることにより簡単
な構成で省エネ方式の電子機器装置を提供することがで
きる。According to the second aspect of the present invention, after the constant of the noise filter is switched by the energy saving canceling means, the second
Since the output of the power supply device is turned on, it is possible to provide an energy-saving electronic device with a simple configuration by switching the constant of one noise filter.
【００２８】請求項３に係る発明によれば、第１の電源
装置に入力するＡＣ電源に挿入されたノイズフィルタを
介さずに第２の電源装置ＡＣ電源を供給し、第２の電源
装置のノイズフィルタのＡＣ電源側にノイズフィルタへ
のＡＣ電源への給電をオンオフする切替え手段を設けた
ので、動作モードに切り替えるだけで消費電力に対応し
た状態となるため、より信頼性の高い省エネ方式の電子
機器装置を提供することができる。According to the third aspect of the present invention, the second power supply unit is supplied with AC power without passing through a noise filter inserted into the AC power supply input to the first power supply unit. Since the switching means for turning on / off the power supply to the AC power supply to the noise filter is provided on the AC power supply side of the noise filter, a state corresponding to the power consumption can be achieved simply by switching to the operation mode. An electronic device can be provided.
【図１】 本発明の第１の実施例を示す電気回路図であ
る。FIG. 1 is an electric circuit diagram showing a first embodiment of the present invention.
【図２】 ノイズフィルタの具体例を示す電気回路図で
ある。FIG. 2 is an electric circuit diagram showing a specific example of a noise filter.
【図３】 本発明の第２の実施例を示す電気回路図であ
る。FIG. 3 is an electric circuit diagram showing a second embodiment of the present invention.
【図４】 本発明の第３の実施例を示す電気回路図であ
る。FIG. 4 is an electric circuit diagram showing a third embodiment of the present invention.
【図５】 従来の省エネ手段を有する電子写真方式の画
像形成装置の電源部及び定着部を示す電気回路図であ
る。FIG. 5 is an electric circuit diagram showing a power supply unit and a fixing unit of an electrophotographic image forming apparatus having a conventional energy saving means.
【図６】 図５の画像形成装置の省エネ待機時の入力電
流とＡＣ電源の電圧との関係を示す波形図である。FIG. 6 is a waveform diagram showing a relationship between an input current and a voltage of an AC power supply in the image forming apparatus of FIG. 5 at the time of energy saving standby.
１…ＡＣ電源、３…ノイズフィルタ（ＮＦ）、６…メイ
ンスイッチ（ＳＷ１）、７…直流電源（ＰＳＵ）、８…
省エネ電源、９…主電源、１０…アクティブフィルタ
（ＡＦ）、１１…ＤＣ／ＤＣコンバータ、１２…省エネ
制御手段、１４…ノイズフィルタ切り換えリレー、１４
ｓ…（ノイズフィルタ切り換えリレーの）接点、１５…
省エネ解除スイッチ、１６…主電源リレー、１６ｓ…
（主電源リレーの）接点、１７…本体制御手段。1: AC power supply, 3: Noise filter (NF), 6: Main switch (SW1), 7: DC power supply (PSU), 8:
Energy saving power supply, 9: Main power supply, 10: Active filter (AF), 11: DC / DC converter, 12: Energy saving control means, 14: Noise filter switching relay, 14
s ... contacts (of the noise filter switching relay), 15 ...
Energy-saving release switch, 16 ... Main power relay, 16s ...
Contacts (of the main power relay), 17 ... body control means.
Claims (3)
される第１の電源装置と、 該第１の電源装置からの電源の供給により起動する第１
の制御手段と、 該第１の制御手段によりオンオフ制御される第２の電源
装置と、 該第２の電源装置からの電源の供給により起動する第２
の制御手段と、 前記第１の制御手段に入力する省エネ解除の信号を生成
する省エネ解除手段とを有する電子機器装置において、 該省エネ解除手段の出力に応じて前記第２の電源装置に
前記ＡＣ電源を供給するとともに、前記ノイズフィルタ
の定数を切り換えることを特徴とする電子機器装置。1. A first power supply to which AC power is supplied via a noise filter, and a first power supply which is activated by supply of power from the first power supply.
Control means, a second power supply apparatus which is controlled to be turned on / off by the first control means, and a second power supply apparatus which is activated by supply of power from the second power supply apparatus.
And an energy-saving canceling means for generating an energy-saving canceling signal input to the first control means, wherein the AC power is supplied to the second power supply in accordance with the output of the energy-saving canceling means. An electronic device, wherein power is supplied and a constant of the noise filter is switched.
て、 前記省エネ解除手段により前記ノイズフィルタの定数を
切り換えた後に、前記第２の電源装置をオンすることを
特徴とする電子機器装置。2. The electronic apparatus according to claim 1, wherein the second power supply is turned on after the constant of the noise filter is switched by the energy saving canceling means.
が供給される第１の電源装置と、 該第１の電源装置からの電源の供給により起動する第１
の制御手段と、 第２のノイズフィルタを介してＡＣ電源が供給される第
２の電源装置と、 該第２の電源装置からの電源の供給により起動する第２
の制御手段と、 前記第１の制御手段に入力する省エネ解除の信号を生成
する省エネ解除手段とを有する電子機器装置において、 該省エネ解除手段の出力に応じて、前記第２のノイズフ
ィルタを介して前記第２の電源装置に前記ＡＣ電源を供
給することを特徴とする電子機器装置。3. A first power supply device to which AC power is supplied via a first noise filter, and a first power supply device which is activated by supply of power from the first power supply device.
A second power supply device to which AC power is supplied via a second noise filter, and a second power supply device that is activated by the supply of power from the second power supply device.
And an energy saving canceling means for generating an energy saving canceling signal to be input to the first control means, wherein the energy saving canceling means is provided via the second noise filter in accordance with the output of the energy saving canceling means. And supplying the AC power to the second power supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000192255A JP3822779B2 (en) | 2000-06-27 | 2000-06-27 | Electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000192255A JP3822779B2 (en) | 2000-06-27 | 2000-06-27 | Electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002010492A true JP2002010492A (en) | 2002-01-11 |
| JP3822779B2 JP3822779B2 (en) | 2006-09-20 |
Family
ID=18691411
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000192255A Expired - Fee Related JP3822779B2 (en) | 2000-06-27 | 2000-06-27 | Electronic equipment |
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| Country | Link |
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| JP2012228021A (en) * | 2011-04-18 | 2012-11-15 | Yaskawa Electric Corp | Electric power conversion apparatus and filter switch |
| JP2014202459A (en) * | 2013-04-09 | 2014-10-27 | 三菱電機株式会社 | Air conditioner |
| WO2015059974A1 (en) * | 2013-10-24 | 2015-04-30 | ソニー株式会社 | Electronic apparatus |
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| JP3822779B2 (en) | 2006-09-20 |
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