JPH02179227A - Battery type ac power supply device - Google Patents

Battery type ac power supply device

Info

Publication number
JPH02179227A
JPH02179227A JP63329415A JP32941588A JPH02179227A JP H02179227 A JPH02179227 A JP H02179227A JP 63329415 A JP63329415 A JP 63329415A JP 32941588 A JP32941588 A JP 32941588A JP H02179227 A JPH02179227 A JP H02179227A
Authority
JP
Japan
Prior art keywords
battery
charging
output transformer
power supply
load
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
JP63329415A
Other languages
Japanese (ja)
Inventor
Korenori Ochiai
落合　是紀
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.)
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Medical Corp
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 Hitachi Medical Corp filed Critical Hitachi Medical Corp
Priority to JP63329415A priority Critical patent/JPH02179227A/en
Publication of JPH02179227A publication Critical patent/JPH02179227A/en
Pending legal-status Critical Current

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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

PURPOSE:To rectify a charging current at feedback diodes and to charge a battery by providing a charging winding to secondary side of an output transformer, and providing a switch connecting a load to the output transformer and connecting the charging winding to a charging AC power reverse operationally. CONSTITUTION:In normal operation, an AC is supplied to a load 4 through an inverter circuit 2 by a change-over switch 5. In case of charging of a battery 1, the switch 5 is operated (b contact is an open circuit, and a contact is a closed circuit), the load 4 is cut and separated from an output transformer 3 and, at the same time, the AC is supplied to a charging winding 3c of the transformer 3 from a battery charging AC power 6. The AC induced to a winding 3a is rectified at a feedback diode 2d or 2c, and the battery 1 can be charged.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、バッテリを電源とし、このバッテリからの直
流を、帰還ダイオードを備えたインバータ回路で交流に
変換し、得られた交流を、出力トランスを介して負荷に
供給するバッテリ式交流電源装置に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention uses a battery as a power source, converts direct current from the battery into alternating current using an inverter circuit equipped with a feedback diode, and outputs the obtained alternating current. The present invention relates to a battery type AC power supply device that supplies power to a load via a transformer.

〔従来の技術〕[Conventional technology]

この種の装置は、移動形の各種交流駆動機器、例えば移
動形Ｘ線撮影装置などの電源装置として多く用いられて
いるが、その電源に用いられるバッテリは充電可能であ
ることが一般的である。この場合、従来装置では、バッ
テリ式交流電ａ！２装置とバッテリ充、電図路は全く別
に扱われていたもので、バッテリの充電は、バッテリ式
交流電源装置とは別個のバッテリ充電回路を用いて行う
ように構成されていた。This type of device is often used as a power supply device for various types of mobile AC-driven equipment, such as mobile X-ray imaging devices, but the batteries used for the power source are generally rechargeable. . In this case, the conventional device uses battery-powered AC power a! The two devices, battery charging, and electric diagram paths were handled completely separately, and the battery was configured to be charged using a battery charging circuit that was separate from the battery-type AC power supply.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

このため従来装置では、バッテリ充電のための回路を別
途必要とし、不経済であるばかりか、バッテリ充電時に
充電回路が見当たらず、充電できないことがあり得るな
ど、使用上、不便であるという問題点があった。For this reason, conventional devices require a separate circuit for charging the battery, which is not only uneconomical but also inconvenient in use, as the charging circuit may not be found when charging the battery and charging may not be possible. was there.

そこで、バッテリ充電回路をバッテリ式交流電源装置に
内蔵させることが考えられるが、これによれば、両者を
別体としたものに比べて不便さは解消されるが、バッテ
リ式交流電源装置が大形化すると共に、高価なものにな
るという問題点があった。Therefore, it may be possible to incorporate the battery charging circuit into the battery-powered AC power supply, but this would eliminate the inconvenience compared to having the two separate units, but the battery-powered AC power supply would be There was a problem that it became expensive as it became more formal.

本発明の目的は、バッテリ充電回路を内蔵し、使用上、
便利である上に、安価かつ小形のバッテリ式交流電源装
置を提供することにある。The purpose of the present invention is to incorporate a battery charging circuit, and to use the battery charging circuit.
It is an object of the present invention to provide a battery-type AC power supply device that is not only convenient but also inexpensive and small.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的は、バッテリを電源とし、このバッテリからの
直流を、帰還ダイオードを備えたインバータ回路で交流
に変換し、得られた交流を、出力トランスを介して負荷
に供給するバッテリ式交流電源装置において、前記出力
トランスの二次側に設けられ交流電源に接続される前記
バッテリの充電用巻線と、前記負荷と前記出力トランス
との接続及び前記充電用巻線とバッテリ充電用交流電源
との接続を逆作動的に行うスイッチとを設け、前記バッ
テリ充電用交流電源からの交流を前記帰還ダイオードで
整流して前記バッテリに供給することにより達成される
。The above purpose is to provide a battery-powered AC power supply device that uses a battery as a power source, converts DC from the battery into AC using an inverter circuit equipped with a feedback diode, and supplies the resulting AC to a load via an output transformer. , a connection between a charging winding of the battery provided on the secondary side of the output transformer and connected to an AC power source, the load and the output transformer, and a connection between the charging winding and an AC power source for battery charging. This is achieved by providing a switch that operates in reverse and rectifying the alternating current from the battery charging alternating current power source with the feedback diode and supplying the rectified alternating current to the battery.

〔作用〕[Effect]

インバータ回路に用いられる帰還ダイオードは、誘導性
負荷のとき、無効電力をバッテリに回生ずる機能をもつ
が、これは負荷側の交流エネルギを直流に変換し、電源
側へ伝えるということである。Feedback diodes used in inverter circuits have the function of regenerating reactive power back to the battery when the load is inductive, but this means converting AC energy on the load side into DC energy and transmitting it to the power source side.

したがって出力トランスを、二次側にバッテリの充電用
＠線を備えて構成し、この出力トランスに対し、インバ
ータ回路として動作するときの負荷と、バッテリ充電回
路として動作するときのバッテリ充電用交流電源とを切
換スイッチで切り換えることにより、バッテリ充電用交
流電源からの交流が帰還ダイオードで整流されてバッテ
リに与えられ、このバッテリを充電できることになる。Therefore, the output transformer is configured with a battery charging @ wire on the secondary side, and the output transformer is connected to a load when operating as an inverter circuit and an AC power supply for battery charging when operating as a battery charging circuit. By switching between the two using a changeover switch, the alternating current from the battery charging alternating current power source is rectified by the feedback diode and applied to the battery, allowing the battery to be charged.

すなわち、帰還ダイオードはインバータ回路とバッテリ
充電回路の両方に用いられることにより、また出力トラ
ンスも同様であり、バッテリ充電回路を内蔵したバッテ
リ式交流電源装置として安価かつ小形なものとなる。That is, since the feedback diode is used in both the inverter circuit and the battery charging circuit, and the same goes for the output transformer, the battery type AC power supply device with a built-in battery charging circuit can be made inexpensive and compact.

〔実施例］ 以下、図面を参照して本発明の詳細な説明する。第１図
は、本発明によるバッテリ式交流電源装置の一実施例を
示す回路図である。この第１図において、■はバッテリ
で、後述インバータ回路の電源であり、またバッテリ充
電時の負荷となる。[Example] Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a circuit diagram showing an embodiment of a battery type AC power supply device according to the present invention. In FIG. 1, a battery (■) is a power source for an inverter circuit, which will be described later, and serves as a load when charging the battery.

２はインバータ回路、ここでは電圧形インバータ回路で
ある。２ａ、２ｂはインバータ回路２の主構成をなすス
イッチング素子としてのトランジスタで、交互にＯＮ、
ＯＦＦすることによりバッテリ１からの直流を交流に変
換し、得られた交流を、出力トランス３を介して負荷（
移動形Ｘ線撮影装置の電源装置として本発明装置が用い
られる場合には、例えばＸ線管回転陽極駆動部）４に供
給する。２ｃ、２ｄはインバータ回路２の一部を構成す
る帰還ダイオードで、トランジスタ’ｌａ、　　２ｂに
逆並列に接続され、負荷４が誘導性の場合に無効電力を
バッテリ１へ回生する。2 is an inverter circuit, here a voltage source inverter circuit. 2a and 2b are transistors as switching elements that constitute the main structure of the inverter circuit 2, and are turned on and off alternately.
By turning off, the direct current from the battery 1 is converted to alternating current, and the obtained alternating current is passed through the output transformer 3 to the load (
When the device of the present invention is used as a power supply device for a mobile X-ray imaging device, it is supplied to, for example, the X-ray tube rotating anode drive unit (4). Feedback diodes 2c and 2d constitute part of the inverter circuit 2, and are connected in antiparallel to the transistors 'la and 2b, and regenerate reactive power to the battery 1 when the load 4 is inductive.

ここで前記出力トランス３は、インバータ回路２からの
交流を所定電圧に変換して負荷４に与えるための−、二
次巻線３ａ、３ｂを備えるほか、その二次側に、バッテ
リ１の充電用巻線３Ｃを備えてなる。Here, the output transformer 3 is provided with secondary windings 3a and 3b for converting the alternating current from the inverter circuit 2 into a predetermined voltage and applying it to the load 4. It is equipped with a winding 3C for use.

５はバッテリ充電時に作動され、負荷４を出力トランス
３から切り離すと共に、出力トランス３の充電用巻線３
Ｃにバッテリ充電用交流電源６を接続する切換スイッチ
である。5 is activated during battery charging, disconnects the load 4 from the output transformer 3, and disconnects the charging winding 3 of the output transformer 3.
This is a changeover switch that connects AC power source 6 for battery charging to C.

次に、上述本発明装置の動作について説明するが、切換
スイッチ５が図示状態にあり、負荷４にインバータ回路
２による交流が与えられる通常の動作については、従来
装置と特に変わるところはないので、その説明を省略し
、ここでは、バッテリｌの充電動作を中心に述べること
にする。すなわちバッテリｌの充電時には、切換スイッ
チ５が作動（図中す接点が開路、ａ接点が閉路）され、
負荷４が出力トランス３から切り離されると共に、出力
トランス３の充電用巻線３Ｃにバッテリ充電用交流電源
６が接続され、出力トランス３の充電用巻線３Ｃにバッ
テリ充電用交流電源６からの交流が供給される。これに
よりいま、出力トランス３に矢印イ方向の電圧が誘起さ
れると、出力トランス３のセンタタップよりバッテリ１
→帰還ダイオード２ｄ−出力トランス３の経路で電流が
流れ、バッテリを充電する。また、誘起電圧が矢印イと
は逆方向のときは、出力トランス３のセンタタップより
バッテリｌ−帰還ダイオード２Ｃ→出力トランス３の経
路で電流が流れ、バッテリ１を充電する。Next, the operation of the above-mentioned device of the present invention will be explained. As for the normal operation in which the changeover switch 5 is in the state shown in the figure and AC is applied to the load 4 by the inverter circuit 2, there is no particular difference from the conventional device. The explanation thereof will be omitted, and the charging operation of the battery I will be mainly described here. That is, when charging the battery 1, the changeover switch 5 is activated (the contact in the figure is open, the a contact is closed),
The load 4 is disconnected from the output transformer 3, and the battery charging AC power supply 6 is connected to the charging winding 3C of the output transformer 3, and the AC power supply 6 from the battery charging AC power supply 6 is connected to the charging winding 3C of the output transformer 3. is supplied. As a result, when a voltage in the direction of arrow A is induced in the output transformer 3, the center tap of the output transformer 3 is applied to the battery 1.
→A current flows through the path between the feedback diode 2d and the output transformer 3, charging the battery. Furthermore, when the induced voltage is in the opposite direction to arrow A, a current flows from the center tap of the output transformer 3 through the path from battery L to feedback diode 2C to output transformer 3, charging the battery 1.

なお上述実施例においては、インバータ回路としてプッ
シュプル形インバータを用いた場合について説明したが
、ブリッジ形インバータなと、他のインバータ回路につ
いても、帰還ダイオードを備えるインバータ回路であり
、その負荷として出力トランスを備えるものであれば、
本発明が適用できることはいうまでもない。In the above embodiment, a push-pull type inverter is used as the inverter circuit, but other inverter circuits such as a bridge type inverter are also inverter circuits equipped with a feedback diode, and an output transformer is used as the load. If it is equipped with
It goes without saying that the present invention is applicable.

（発明の効果〕 本発明によれば、バッテリ充電回路を内蔵させたので使
用上、便利であり、しかもこの場合、装置に既存の帰還
ダイオード及び出力トランスに、バッテリ充電回路の整
流用ダイオード及び充電用トランスとしての機能をも持
たせたので、バッテリ充電回路としての部品点数が削減
され、装置の低価格化及び小形化が図れるという効果が
ある。(Effects of the Invention) According to the present invention, since the battery charging circuit is built-in, it is convenient to use.Moreover, in this case, the rectifying diode of the battery charging circuit and the charging Since the battery charging circuit also functions as a transformer, the number of parts for the battery charging circuit can be reduced, and the device can be made lower in price and smaller in size.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明装置の一実施例を示す回路図である。 ■・・・バッテリ、２・・・インバータ回路、２ｃ、２
ｄ・・・帰還ダイオード、３・・・出力トランス、３Ｃ
・・・バッテリ１の充電用巻線、４・・・負荷、５・・
・切換スイッチ、６・・・バッテリ充電用交流電源。 特許出願人　株式会社　日立メディコFIG. 1 is a circuit diagram showing an embodiment of the device of the present invention. ■...Battery, 2...Inverter circuit, 2c, 2
d...Feedback diode, 3...Output transformer, 3C
... Charging winding of battery 1, 4... Load, 5...
- Selector switch, 6... AC power supply for battery charging. Patent applicant Hitachi Medical Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] １、バッテリを電源とし、このバッテリからの直流を、
帰還ダイオードを備えたインバータ回路で交流に変換し
、得られた交流を、出力トランスを介して負荷に供給す
るバッテリ式交流電源装置において、前記出力トランス
の二次側に設けられ交流電源に接続される前記バッテリ
の充電用巻線と、前記負荷と前記出力トランスとの接続
及び前記充電用巻線とバッテリ充電用交流電源との接続
を逆作動的に行うスイッチとを設け、前記バッテリ充電
用交流電源からの交流を前記帰還ダイオードで整流して
前記バッテリに供給することを特徴とするバッテリ式交
流電源装置。1. Using a battery as a power source, the direct current from this battery is
In a battery-type AC power supply device that converts the AC into AC using an inverter circuit equipped with a feedback diode and supplies the obtained AC to a load via an output transformer, the AC power supply is provided on the secondary side of the output transformer and connected to the AC power supply. a charging winding for the battery; a switch for connecting the load to the output transformer and connecting the charging winding to the AC power source for battery charging in a reverse-acting manner; A battery-type AC power supply device characterized in that AC from a power source is rectified by the feedback diode and supplied to the battery.
JP63329415A 1988-12-28 1988-12-28 Battery type ac power supply device Pending JPH02179227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63329415A JPH02179227A (en) 1988-12-28 1988-12-28 Battery type ac power supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63329415A JPH02179227A (en) 1988-12-28 1988-12-28 Battery type ac power supply device

Publications (1)

Publication Number Publication Date
JPH02179227A true JPH02179227A (en) 1990-07-12

Family

ID=18221148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63329415A Pending JPH02179227A (en) 1988-12-28 1988-12-28 Battery type ac power supply device

Country Status (1)

Country Link
JP (1) JPH02179227A (en)

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