JPH09320750A - Cooker - Google Patents

Cooker

Info

Publication number
JPH09320750A
JPH09320750A JP13463796A JP13463796A JPH09320750A JP H09320750 A JPH09320750 A JP H09320750A JP 13463796 A JP13463796 A JP 13463796A JP 13463796 A JP13463796 A JP 13463796A JP H09320750 A JPH09320750 A JP H09320750A
Authority
JP
Japan
Prior art keywords
circuit
switching element
fuse
pattern wiring
cooker
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.)
Pending
Application number
JP13463796A
Other languages
Japanese (ja)
Inventor
Shigeru Arihisa
慈 有久
Hironori Hamada
浩典 浜田
Masaaki Shibata
雅章 柴田
Makoto Katakasu
誠 片粕
Hiroshi Fukuda
浩史 福田
Koji Niiyama
浩次 新山
Seiichi Takakura
誠一 高椋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13463796A priority Critical patent/JPH09320750A/en
Publication of JPH09320750A publication Critical patent/JPH09320750A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/0213Electrical arrangements not otherwise provided for
    • H05K1/0254High voltage adaptations; Electrical insulation details; Overvoltage or electrostatic discharge protection ; Arrangements for regulating voltages or for using plural voltages
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/0213Electrical arrangements not otherwise provided for
    • H05K1/0263High current adaptations, e.g. printed high current conductors or using auxiliary non-printed means; Fine and coarse circuit patterns on one circuit board

Abstract

PROBLEM TO BE SOLVED: To ensure the safety of a cooker in inexpensive constitution, even if water is splashed by arranging a signal pattern wiring of a switching element between high voltage pattern wirings, and fusing a fuse by the short circuit between the high voltage pattern wirings. SOLUTION: AC current of a commercial power source is supplied to a rectifier through a fuse, and DC current obtained is supplied to an inverter circuit parallel to a smoothing capacitor. High-frequency current produced with a resonance capacitor and a switching element is supplied to a heating coil, and a highfequency magnetic field is generated to heat a cooking pot. In a copper foil side of a printed circuit board 13 of a cooker, a signal pattern wiring 16 of about 15V between an inverter driving circuit and the switching element 5 is wired between a high voltage side pattern wiring 14 of about 140V of a smoothing capacitor 9 and a low voltage side pattern wiring 15 of about 14V. When short circuit occurs from attaching of water, an input terminal of the switching element 5 is broken, a short circuit is generated between a collector and an emitter, and the fuse is blown.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、誘導加熱方式の調
理器に関するものである。
TECHNICAL FIELD The present invention relates to an induction heating type cooking device.

【0002】[0002]

【従来の技術】近年、よりおいしいご飯を炊いたり、煮
たりするために、誘導加熱方式の調理器が普及してきて
いる。従来、誘導加熱方式の調理器の回路は、整流回
路、ヒュ−ズ、インバ−タ回路、駆動回路、制御回路で
構成されており、それぞれの部品は銅箔面に形成したパ
タ−ンにより電気的に接続されていた。
2. Description of the Related Art In recent years, induction heating type cookers have become popular in order to cook and cook delicious rice. Conventionally, the circuit of the induction heating type cooker is composed of a rectifier circuit, a fuse, an inverter circuit, a drive circuit, and a control circuit, and each part is electrically formed by a pattern formed on the copper foil surface. Were connected to each other.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上記の
ような従来の誘導加熱方式を採用した調理器では、調理
器本体の隙間から水や吹きこぼれた液体が本体内部に流
入し、プリント配線板上に滴下し、部品周辺や部品間を
接続するパタ−ン上に液体がたまると、部品の端子間や
部品間を接続するパタ−ンが短絡される場合がある。
However, in the cooker adopting the conventional induction heating system as described above, water or spilled liquid flows into the inside of the cooker main body from the gap of the cooker main body, and the water is blown onto the printed wiring board. If liquid is dripped and liquid is accumulated on the parts or the patterns connecting the parts, the patterns connecting the terminals of the parts or the parts may be short-circuited.

【0004】特に、インバ−タ回路は、加熱発振時にパ
タ−ンや部品端子間に600Vを越える高電圧が印加さ
れる構成となっており、その高電圧部と低電圧部を短絡
するように液体が滴下したまると液体によって基板上で
電流リ−クが発生し、トラッキングが起きるおそれがあ
った。
In particular, the inverter circuit is constructed so that a high voltage exceeding 600 V is applied between the pattern and component terminals during heating oscillation, and the high voltage part and the low voltage part are short-circuited. If the liquid drops completely, the liquid may cause a current leak on the substrate, which may cause tracking.

【0005】そして、その対策として部品や端子をコ−
ティング剤で覆ったり、液体がたまっても短絡しない程
度までパタ−ン間の距離を確保したり、耐トラッキング
性が高い高価なプリント配線板を使用したりすること
で、コストが高くなるという問題もあった。
Then, as a countermeasure, a part or a terminal is connected.
Costs increase by covering with a coating agent, securing the distance between the patterns to the extent that liquid does not short circuit, and using an expensive printed wiring board with high tracking resistance. There was also.

【0006】本発明は上記従来の問題点を解決するもの
で、安価な構成でプリント配線板の銅箔面側に水などの
液体がかかっても、安全性が確保される調理器を提供す
ることを目的とする。
The present invention solves the above-mentioned conventional problems, and provides a cooker which is inexpensive and ensures safety even when liquid such as water splashes on the copper foil side of a printed wiring board. The purpose is to

【0007】[0007]

【課題を解決するための手段】上記目的を達成するため
に本発明の調理器は、商用電源と、前記商用電源の交流
を直流に変換する整流回路と、前記整流回路に接続され
高周波磁界を発生して鍋を加熱する加熱コイルと、前記
加熱コイルとともに共振回路を構成する共振コンデンサ
およびこの共振回路に接続され共振電流を生成するため
のスイッチング素子とを備えたインバ−タ回路と、前記
スイッチング素子を駆動する駆動回路と、前記駆動回路
を制御し調理制御を行う制御回路と、少なくとも前記整
流回路とヒュ−ズとインバ−タ回路を搭載したプリント
配線板を備え、前記プリント配線板に水などの液体が付
着することによって電流リ−クが生じトラッキングが発
生する高圧パタ−ン配線間に前記高圧パタ−ン配線との
間で水などの液体により電流リ−クが発生した場合に前
記スイッチング素子を破壊する信号パタ−ンを配線した
構成を有している。
In order to achieve the above object, a cooker according to the present invention comprises a commercial power source, a rectifier circuit for converting an alternating current of the commercial power source into a direct current, and a high frequency magnetic field connected to the rectifier circuit. An inverter circuit including a heating coil that generates and heats a pot, a resonance capacitor that forms a resonance circuit together with the heating coil, and a switching element that is connected to the resonance circuit and that generates a resonance current; and the switching circuit. A drive circuit for driving the element, a control circuit for controlling the drive circuit for cooking control, and a printed wiring board on which at least the rectifier circuit, fuse, and inverter circuit are mounted, and the printed wiring board is provided with water. A liquid leaks between the high-voltage pattern wiring and the high-voltage pattern wiring where current leakage occurs and tracking occurs due to the adhesion of liquid such as It has a configuration in which wire the down - more current Li - signal to destroy the switching element when the click occurred pattern.

【0008】[0008]

【発明の実施の形態】本発明は、プリント配線板上に水
などの液体が滴下、飛散して、高圧パタ−ン配線間で電
流リ−クが生じトラッキングが発生しても、スイッチン
グ素子を破壊することによりヒュ−ズを効果的に溶断す
ることができる。
BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, even if a liquid such as water drops and scatters on a printed wiring board and a current leak occurs between high voltage pattern wirings and tracking occurs, a switching element is operated. By breaking, the fuse can be effectively blown.

【0009】[0009]

【実施例】以下本発明の一実施例について、図面を参照
しながら説明する。図1は本発明の一実施例の調理器の
回路図を示したものである。1は水と米を入れるための
鍋で2は前記鍋1を加熱するための加熱コイルである。
3はインバ−タ回路で、前記加熱コイル2と共振回路を
構成する共振コンデンサ4およびこの共振回路に接続さ
れ共振電流を生成するスイッチング素子であるIGBT
5から構成され、加熱コイル2に高周波電流を供給す
る。6は商用電源7を直流に整流する整流器で、8は前
記整流器6と商用電源7とに接続されるヒュ−ズであ
り、ヒュ−ズ8が溶断することで整流器6への通電を停
止する。9は前記整流器6の出力を平滑する平滑コンデ
ンサである。10はスイッチング素子5に駆動信号を送
るインバ−タ駆動回路、11は調理制御を行うために前
記インバ−タ駆動回路10を制御するマイクロコンピュ
−タ(以下マイコンと呼ぶ)で、キ−スイッチ12で入
力情報が与えられる。そして上記インバ−タ回路3、整
流器6、ヒュ−ズ8、平滑コンデンサ9がプリント配線
板(図示せず)に搭載されている。
An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a circuit diagram of a cooking device according to an embodiment of the present invention. Reference numeral 1 is a pot for putting water and rice, and 2 is a heating coil for heating the pot 1.
Reference numeral 3 is an inverter circuit, which is a resonance capacitor 4 which forms a resonance circuit with the heating coil 2 and an IGBT which is a switching element which is connected to the resonance circuit and generates a resonance current.
The heating coil 2 is provided with a high frequency current. Reference numeral 6 is a rectifier that rectifies the commercial power supply 7 into direct current, and 8 is a fuse connected to the rectifier 6 and the commercial power supply 7. When the fuse 8 is melted, the power supply to the rectifier 6 is stopped. . Reference numeral 9 is a smoothing capacitor that smoothes the output of the rectifier 6. Reference numeral 10 is an inverter drive circuit that sends a drive signal to the switching element 5, and 11 is a micro computer (hereinafter referred to as a microcomputer) that controls the inverter drive circuit 10 for controlling cooking, and a key switch 12 Input information is given with. The inverter circuit 3, the rectifier 6, the fuse 8 and the smoothing capacitor 9 are mounted on a printed wiring board (not shown).

【0010】図2は本発明の一実施例のプリント配線板
の部品実装面から見た外観図を示したものである。13
は図1に述べたプリント配線板であり共振コンデンサ
4、IGBT5、整流器6、ヒュ−ズ8、平滑コンデン
サ9を搭載しており、各部品間を接続するパタ−ン配線
が裏側の銅箔面に配線されている。
FIG. 2 is an external view of a printed wiring board according to an embodiment of the present invention as viewed from the component mounting surface. Thirteen
1 is the printed wiring board described in FIG. 1 and is equipped with a resonance capacitor 4, an IGBT 5, a rectifier 6, a fuse 8 and a smoothing capacitor 9, and the pattern wiring for connecting each component is a copper foil surface on the back side. Is wired to.

【0011】図3は本発明の一実施例のプリント配線板
の銅箔面から見た外観図の一部を示したものである。た
だし、反対側の部品は見えないため、点線により配置場
所を図示している。9は部品実装面に配置されている平
滑コンデンサであり、14は平滑コンデンサ9の高電圧
側パタ−ン配線で整流器6の高電圧側出力端子と接続さ
れており、15は低電圧側パタ−ン配線で整流器6の低
電圧側出力端子と接続されている。16は部品実装面に
配置されているIGBT5の信号入力端子とインバ−タ
駆動回路10を接続する信号パタ−ン配線であり、高電
圧側パタ−ン配線14と低電圧側パタ−ン配線15の間
に配線されている。
FIG. 3 shows a part of an external view of a printed wiring board according to an embodiment of the present invention as seen from the copper foil side. However, the parts on the opposite side cannot be seen, so the location is shown by the dotted line. Reference numeral 9 is a smoothing capacitor arranged on the component mounting surface, 14 is a high voltage side pattern wiring of the smoothing capacitor 9, which is connected to the high voltage side output terminal of the rectifier 6, and 15 is a low voltage side pattern. It is connected to the low-voltage side output terminal of the rectifier 6 by a wiring. Reference numeral 16 is a signal pattern wiring for connecting the signal input terminal of the IGBT 5 arranged on the component mounting surface and the inverter drive circuit 10. The high voltage side pattern wiring 14 and the low voltage side pattern wiring 15 are provided. Are wired between.

【0012】次に、この構成における作用について図1
〜図3を用いて説明する。まず、使用者によりキ−スイ
ッチ12からマイコン11に情報が入力されると、マイ
コン11はあらかじめ記憶された調理シ−ケンスに従っ
て、インバ−タ駆動回路10を通してIGBT5を駆動
し、インバ−タ回路3を発振させる。インバ−タ回路3
の発振によって加熱コイル2に高周波電流が供給され、
鍋1を加熱する。商用電源7の電圧が100Vの時、I
GBT5の端子間にはインバ−タ停止中で約140V、
発振中で600V以上の高電圧が発生しており、共振コ
ンデンサ4の両端にも発振中で600V以上の高電圧が
印加されている。また、平滑コンデンサ9の両端の高電
圧側パタ−ン配線14と低電圧側パタ−ン配線15の間
には常時約140Vの高電圧が印加されている。
Next, the operation in this configuration will be described with reference to FIG.
This will be described with reference to FIG. First, when information is input to the microcomputer 11 from the key switch 12 by the user, the microcomputer 11 drives the IGBT 5 through the inverter drive circuit 10 according to the cooking sequence stored in advance, and the inverter circuit 3 To oscillate. Inverter circuit 3
High frequency current is supplied to the heating coil 2 by the oscillation of
Heat pan 1. When the voltage of the commercial power source 7 is 100V, I
Between the terminals of GBT5, the inverter is stopped, about 140V,
A high voltage of 600 V or higher is generated during oscillation, and a high voltage of 600 V or higher is also applied to both ends of the resonance capacitor 4 during oscillation. Further, a high voltage of about 140 V is always applied between the high voltage side pattern wiring 14 and the low voltage side pattern wiring 15 at both ends of the smoothing capacitor 9.

【0013】一方、インバ−タ駆動回路10からIGB
T5へ出力する駆動信号の電圧は約20VでIGBT5
の信号入力端子およびインバ−タ駆動回路10の耐圧は
ともに25V程度になっている。また、マイコン11の
駆動電源は5Vである。
On the other hand, from the inverter drive circuit 10 to the IGB
The voltage of the drive signal output to T5 is about 20V and IGBT5
The withstand voltage of both the signal input terminal and the inverter drive circuit 10 is about 25V. The driving power source of the microcomputer 11 is 5V.

【0014】上記のように配線された高電圧側パタ−ン
配線14と信号パタ−ン配線16の間に水などの液体が
付着し短絡すると、信号パタ−ン配線16およびIGB
T5の信号入力端子に約140Vの電圧がかかることに
なり、IGBT5の信号入力端子の耐圧を越えるためI
GBT5の信号入力端子が破壊される。IGBT5は破
壊される時にコレクタ−エミッタ間を短絡するようにな
っているので、ヒュ−ズに過電流が流れヒュ−ズ8を溶
断する。
When liquid such as water adheres between the high voltage side pattern wiring 14 and the signal pattern wiring 16 which are wired as described above and short-circuits, the signal pattern wiring 16 and the IGB are connected.
A voltage of about 140 V is applied to the signal input terminal of T5, which exceeds the withstand voltage of the signal input terminal of the IGBT5.
The signal input terminal of GBT5 is destroyed. When the IGBT 5 is destroyed, the collector-emitter is short-circuited, so that an overcurrent flows into the fuse and the fuse 8 is melted.

【0015】このように本発明の実施例によれば、高電
圧側パタ−ン配線14と信号パタ−ン配線16の間を短
絡することでIGBT5が破壊され、ヒュ−ズ8に過電
流が流れヒュ−ズ8を溶断するため、回路への通電を停
止することができる。なお、実施例では炊飯器を示した
が、調理鍋などの調理器であってもよいことはいうまで
もない。
As described above, according to the embodiment of the present invention, the short circuit between the high-voltage side pattern wiring 14 and the signal pattern wiring 16 destroys the IGBT 5 and causes an overcurrent to the fuse 8. Since the flow fuse 8 is blown out, the power supply to the circuit can be stopped. Although the rice cooker is shown in the embodiment, it goes without saying that it may be a cooker such as a cooking pot.

【0016】[0016]

【発明の効果】以上のように、本発明によれば、高電圧
側パタ−ン配線と信号パタ−ン配線の短絡によってIG
BTを破壊し、ヒュ−ズを溶断することで、連続的な回
路への電圧印加を停止することができるので、トラッキ
ングの進行を防止し、安価な構成で調理器内部への液体
の侵入に対して安全な調理器を実現できる。
As described above, according to the present invention, the IG is generated by the short circuit between the high voltage side pattern wiring and the signal pattern wiring.
By breaking the BT and melting the fuse, the voltage application to the continuous circuit can be stopped, which prevents the tracking from progressing and prevents liquid from entering the cooker with an inexpensive structure. On the other hand, a safe cooking device can be realized.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の調理器の回路図FIG. 1 is a circuit diagram of a cooker according to an embodiment of the present invention.

【図2】同、調理器の部品実装面側のプリント配線板外
観図
FIG. 2 is an external view of a printed wiring board on the component mounting surface side of the cooking device.

【図3】同、調理器の銅箔面側のプリント配線板外観図[Fig. 3] Same as above, external view of the printed wiring board on the copper foil side of the cooking device

【符号の説明】[Explanation of symbols]

1 鍋 2 加熱コイル 3 インバ−タ回路 4 共振コンデンサ 5 IGBT(スイッチング素子) 6 整流器 7 商用電源 8 ヒュ−ズ 9 平滑コンデンサ 10 インバ−タ駆動回路 11 マイクロコンピュ−タ(マイコン) 12 キ−スイッチ 13 プリント配線板 14 高電圧側パタ−ン配線 15 低電圧側パタ−ン配線 16 信号パタ−ン配線 1 Pan 2 Heating Coil 3 Inverter Circuit 4 Resonant Capacitor 5 IGBT (Switching Element) 6 Rectifier 7 Commercial Power Supply 8 Fuses 9 Smoothing Capacitor 10 Inverter Drive Circuit 11 Micro Computer (Microcomputer) 12 Key Switch 13 Printed wiring board 14 High-voltage side pattern wiring 15 Low-voltage side pattern wiring 16 Signal pattern wiring

───────────────────────────────────────────────────── フロントページの続き (72)発明者 片粕 誠 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 福田 浩史 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 新山 浩次 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 高椋 誠一 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Makoto Katagasu 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Hiroshi Fukuda 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (72) Koji Niiyama, 1006 Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Industrial Co., Ltd. (72) Seiichi Takagura, 1006, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 商用電源と、前記商用電源の交流を直流
に変換する整流回路と、前記商用電源と前記整流回路に
接続されるヒュ−ズと、前記整流回路に接続され高周波
磁界を発生して鍋を加熱する加熱コイルと、前記加熱コ
イルとともに共振回路を構成する共振コンデンサおよび
この共振回路に接続され共振電流を生成するためのスイ
ッチング素子とを備えたインバ−タ回路と、前記スイッ
チング素子を駆動する駆動回路と、前記駆動回路を制御
する制御回路と、少なくとも前記整流回路とヒュ−ズと
インバ−タ回路を搭載し各部品を電気的に接続するパタ
−ン配線を形成したプリント配線板とを備え、前記パタ
ーン配線は、前記プリント配線板上で電流リークが発生
した際に前記スイッチング素子を破壊するよう高圧パタ
−ン配線間に前記スイッチング素子の信号パタ−ンを配
してなる調理器。
1. A commercial power source, a rectifier circuit for converting alternating current of the commercial power source into direct current, a fuse connected to the commercial power source and the rectifier circuit, and a high frequency magnetic field connected to the rectifier circuit. An inverter circuit including a heating coil for heating a pan, a resonance capacitor that forms a resonance circuit together with the heating coil, and a switching element connected to the resonance circuit to generate a resonance current; and the switching element. A printed circuit board on which a drive circuit for driving, a control circuit for controlling the drive circuit, at least the rectifying circuit, a fuse and an inverter circuit are mounted and pattern wiring for electrically connecting the respective parts is formed. And the pattern wiring is arranged between the high-voltage pattern wirings so as to destroy the switching element when a current leak occurs on the printed wiring board. A cooker with a signal pattern of an itching element.
JP13463796A 1996-05-29 1996-05-29 Cooker Pending JPH09320750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13463796A JPH09320750A (en) 1996-05-29 1996-05-29 Cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13463796A JPH09320750A (en) 1996-05-29 1996-05-29 Cooker

Publications (1)

Publication Number Publication Date
JPH09320750A true JPH09320750A (en) 1997-12-12

Family

ID=15133033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13463796A Pending JPH09320750A (en) 1996-05-29 1996-05-29 Cooker

Country Status (1)

Country Link
JP (1) JPH09320750A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006025575A1 (en) * 2004-09-01 2006-03-09 Seiko Epson Corporation Printer
EP1792733A1 (en) * 2004-09-01 2007-06-06 Seiko Epson Corporation Printing material housing device
WO2018103123A1 (en) * 2016-12-09 2018-06-14 中车永济电机有限公司 Four-quadrant power module

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006025575A1 (en) * 2004-09-01 2006-03-09 Seiko Epson Corporation Printer
EP1792733A1 (en) * 2004-09-01 2007-06-06 Seiko Epson Corporation Printing material housing device
US7364252B2 (en) 2004-09-01 2008-04-29 Seiko Epson Corporation Printing apparatus
JPWO2006025575A1 (en) * 2004-09-01 2008-05-08 セイコーエプソン株式会社 Printing device
EP1792733A4 (en) * 2004-09-01 2009-07-08 Seiko Epson Corp Printing material housing device
JP2010105404A (en) * 2004-09-01 2010-05-13 Seiko Epson Corp Printing apparatus
JP4539654B2 (en) * 2004-09-01 2010-09-08 セイコーエプソン株式会社 Printing device
US7967415B2 (en) 2004-09-01 2011-06-28 Seiko Epson Corporation Printing material container
WO2018103123A1 (en) * 2016-12-09 2018-06-14 中车永济电机有限公司 Four-quadrant power module

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