JP2008017632A - Uninterruptible power supply system - Google Patents

Uninterruptible power supply system Download PDF

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JP2008017632A
JP2008017632A JP2006186595A JP2006186595A JP2008017632A JP 2008017632 A JP2008017632 A JP 2008017632A JP 2006186595 A JP2006186595 A JP 2006186595A JP 2006186595 A JP2006186595 A JP 2006186595A JP 2008017632 A JP2008017632 A JP 2008017632A
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connection terminals
power supply
uninterruptible power
short
inverter
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JP4591416B2 (en
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Koji Ogawa
浩司 小川
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Mitsubishi Electric Corp
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    • 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
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    • Y02E60/10—Energy storage using batteries

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Abstract

<P>PROBLEM TO BE SOLVED: To provide an uninterruptible power supply system for generating AC power by an inverter using the power of a plurality of batteries to output the power to a load device when a power failure occurs without adopting a large high-capacity rating specification for connection terminals even if the batteries are deteriorated, and without generating abnormal heat in a connecting section between lead wires and the connection terminals. <P>SOLUTION: This uninterruptible power supply system includes: the plurality of connection terminals 4a to 4j connected with the plurality of batteries 2a to 2e, respectively, through input side lead wires 3a to 3j; output side lead wires 8a to 8j of which one-side ends are connected with the connection terminals 4a to 4j, respectively, and other ends are electrically connected, and which are connected with the inverter 9; and short-circuit members 6a, 6b for short-circuiting the connection terminals 4a to 4j and the other connection terminals. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、無停電電源装置に係り、特に、商用電源のトラブルによる停電が発生した場合に負荷装置へ電力を供給することが可能な複数のバッテリーを備えた無停電電源装置に関する。   The present invention relates to an uninterruptible power supply, and more particularly, to an uninterruptible power supply including a plurality of batteries capable of supplying power to a load device when a power failure occurs due to a trouble in commercial power.

従来の無停電電源装置は、停電などで交流電源に異常が発生したときには交流電源から電力を得られないので、整流器の出力段に接続されたバッテリーの電力をインバータにより交流電力に変換し、負荷装置に連続して供給し続けるように構成されており、電力供給を確実にするために複数のバッテリーを配設し、リード線などを用いてバッテリーの電力を接続端子を介してインバータに供給する構成としている。（例えば、特許文献１）   The conventional uninterruptible power supply cannot obtain power from the AC power supply when an abnormality occurs in the AC power supply due to a power failure or the like. Therefore, the inverter converts the battery power connected to the output stage of the rectifier to AC power by the inverter. It is configured to continuously supply power to the device, and a plurality of batteries are arranged to ensure power supply, and the power of the battery is supplied to the inverter via connection terminals using lead wires or the like. It is configured. (For example, Patent Document 1)

特開２００１−３５２６９６号公報JP 2001-352696 A

従来の無停電電源装置は以上のように構成されており、バッテリーが正常であるときには、インバータが要求する電流に対して複数のバッテリーが均等に分担して電流を供給するが、例えば、長期間の使用によりバッテリーが劣化すると、複数のバッテリー間の電流負担に偏りが発生する。
この結果、電流が通電される接続端子においても通電電流の偏りが生じ、通電電流が増加した接続端子においては電流通電によりリード線と接続端子との接続部で異常発熱が発生するという問題があり、接続端子に大形の高容量定格仕様を採用するなどの対応処置がされていた。 The conventional uninterruptible power supply is configured as described above, and when the battery is normal, a plurality of batteries supply the current evenly with respect to the current required by the inverter. When the battery deteriorates due to the use of the battery, the current burden among the plurality of batteries is biased.
As a result, there is a problem that the bias of the energizing current also occurs in the connection terminal to which the current is applied, and in the connection terminal in which the energizing current is increased, abnormal heat generation occurs at the connection portion between the lead wire and the connection terminal due to the current energization. Measures were taken such as adopting a large high-capacity rated specification for the connection terminals.

本発明は、上記のような課題を解決するためになされたもので、バッテリーが劣化した場合にも、接続端子に大形の高容量定格の仕様を採用することなく、リード線と接続端子との接続部で異常発熱が発生することのない無停電電源装置を提供することを目的としている。   The present invention has been made to solve the above-described problems. Even when the battery is deteriorated, the lead wire, the connection terminal, and the connection terminal can be used without adopting a large high-capacity rating specification for the connection terminal. It is an object of the present invention to provide an uninterruptible power supply in which abnormal heat generation does not occur at the connecting portion.

本発明に係る無停電電源装置は、停電発生時に複数のバッテリーの電力を用いてインバータにより交流電力を生成して負荷装置に出力する無停電電源装置において、インバータを収納する無停電電源装置本体と、この無停電電源装置本体に配設され複数のバッテリーの夫々と入力側リード線で接続される複数の接続端子と、一方端が接続端子の夫々に接続され他方端が接続点で電気的に結線されてインバータに接続された出力側リード線と、複数の接続端子のいずれか１つとこの接続端子以外の接続端子の少なくともいずれか１つとの間を短絡する短絡部材とで構成させたものである。   An uninterruptible power supply according to the present invention includes an uninterruptible power supply main body that houses an inverter in an uninterruptible power supply that generates AC power by an inverter using the power of a plurality of batteries and outputs it to a load device when a power failure occurs. The uninterruptible power supply main body is provided with a plurality of connection terminals connected to each of a plurality of batteries via input-side lead wires, one end connected to each of the connection terminals, and the other end electrically connected at a connection point. The output side lead wire that is connected and connected to the inverter, and a short circuit member that short-circuits between any one of the plurality of connection terminals and at least one of the connection terminals other than the connection terminal. is there.

本発明は、複数の接続端子のいずれか１つとこの接続端子以外の接続端子の少なくともいずれか１つとの間を短絡する短絡部材とで構成させたので、バッテリーが劣化し、バッテリーの電流負担に偏りが生じた場合においても、インバータに供給される電流が短絡部材で分流されるので、接続端子で異常発熱が発生することがない。
また、その結果、接続端子を高容量定格仕様にする必要がないので、低コストで信頼性の高い無停電電源装置を提供できる。 In the present invention, since any one of the plurality of connection terminals and at least one of the connection terminals other than the connection terminals are configured to be short-circuited, the battery is deteriorated and the current load of the battery is reduced. Even when the bias occurs, the current supplied to the inverter is shunted by the short-circuit member, so that no abnormal heat is generated at the connection terminal.
As a result, it is not necessary to make the connection terminal have a high capacity rating specification, so that an uninterruptible power supply apparatus with low cost and high reliability can be provided.

実施の形態１．
図１は本発明の実施形態１における無停電電源装置を示す外観斜視図、図２は図１の無停電電源装置本体の正面図、図３は図２の要部拡大斜視図、図４は図２の要部一部断面拡大側面図、図５は図１の構成を示すブロック図、図６は図３の短絡部材の拡大斜視図である。 Embodiment 1 FIG.
1 is an external perspective view showing the uninterruptible power supply according to Embodiment 1 of the present invention, FIG. 2 is a front view of the uninterruptible power supply main body of FIG. 1, FIG. 3 is an enlarged perspective view of the main part of FIG. 2 is a partially sectional enlarged side view of the main part of FIG. 2, FIG. 5 is a block diagram showing the configuration of FIG. 1, and FIG. 6 is an enlarged perspective view of the short-circuit member of FIG.

図１において、無停電電源装置１００は無停電電源装置本体１と、複数のバッテリー２ａ、２ｂ、２ｃ、２ｄ及び２ｅ、並びに無停電電源装置本体１と複数のバッテリー２ａ、２ｂ、２ｃ、２ｄ、２ｅとを接続する入力側リード線３ａ、３ｂ、３ｃ、３ｄ、３ｅ、３ｆ、３ｇ、３ｈ、３ｉ、３ｊより構成されている。   In FIG. 1, an uninterruptible power supply 100 includes an uninterruptible power supply main body 1 and a plurality of batteries 2a, 2b, 2c, 2d and 2e, and an uninterruptible power supply main body 1 and a plurality of batteries 2a, 2b, 2c, 2d, 2e, the input side lead wires 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j are connected.

図２から図６において、無停電電源装置本体１には、複数の接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅ、４ｆ、４ｇ、４ｈ、４ｉ、４ｊを整列させた状態で無停電電源装置本体１に固着させる端子台４、図示しない商用電源からの電力が入力される入力端子５、図示しない負荷装置へ電力を出力する出力端子６が配設され、接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅ、４ｆ、４ｇ、４ｈ、４ｉ、４ｊには入力側リード線３ａ、３ｂ、３ｃ、３ｄ、３ｅ、３ｆ、３ｇ、３ｈ、３ｉ、３ｊの一方端が締付ネジ７により締付け固定され、他方端がバッテリー２ａ、２ｂ、２ｃ、２ｄ、２ｅに接続されている。   2 to 6, the uninterruptible power supply main body 1 includes a plurality of connection terminals 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, and 4j in an aligned state. 1, a terminal block 4 to be fixed to 1, an input terminal 5 to which power from a commercial power source (not shown) is input, and an output terminal 6 to output power to a load device (not shown) are arranged, and connection terminals 4 a, 4 b, 4 c, 4 d, 4e, 4f, 4g, 4h, 4i, and 4j have one end of the input side lead wires 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j fastened by a tightening screw 7, and the other The ends are connected to the batteries 2a, 2b, 2c, 2d and 2e.

また、接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅ、４ｆ、４ｇ、４ｈ、４ｉ、４ｊの夫々には、後述のインバータ９に接続される出力側リード線８ａ、８ｂ、８ｃ、８ｄ、８ｅ、８ｆ、８ｇ、８ｈ、８ｉ、８ｊが接続されており、この出力側リード線は一方端が締付ネジ７により締付け固定され、他方端が接続点８０，８１で電気的に結線された後、インバータ９に接続される。（図５に示す）   The connection terminals 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, and 4j are connected to output side lead wires 8a, 8b, 8c, 8d, 8e connected to an inverter 9 described later. 8f, 8g, 8h, 8i, and 8j are connected. After this output side lead wire is clamped and fixed at one end by the tightening screw 7 and the other end is electrically connected at connection points 80 and 81, Connected to the inverter 9. (Shown in FIG. 5)

バッテリー２ａ、２ｂ、２ｃ、２ｄ、２ｅと接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅ、４ｆ、４ｇ、４ｈ、４ｉ、４ｊとを接続する入力側リード線３ａ、３ｂ、３ｃ、３ｄ、３ｅ、３ｆ、３ｇ、３ｈ、３ｉ、３ｊの内、入力側リード線３ａ、３ｃ、３ｅ、３ｇ、３ｉの一方端はバッテリー２ａ、２ｂ、２ｃ、２ｄ、２ｅのプラス電極に接続され、入力側リード線３ｂ、３ｄ、３ｆ、３ｈ、３ｊの一方端はバッテリー２ａ、２ｂ、２ｃ、２ｄ、２ｅのマイナス電極に接続される。   Input-side lead wires 3a, 3b, 3c, 3d, 3e, connecting the batteries 2a, 2b, 2c, 2d, 2e and the connection terminals 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, 4j, 3f, 3g, 3h, 3i, 3j, one end of the input side lead wires 3a, 3c, 3e, 3g, 3i is connected to the positive electrodes of the batteries 2a, 2b, 2c, 2d, 2e, and the input side lead wires One ends of 3b, 3d, 3f, 3h, and 3j are connected to the negative electrodes of the batteries 2a, 2b, 2c, 2d, and 2e.

入力側リード線３ａ、３ｃ、３ｅ、３ｇ、３ｉの他方端は接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅに接続されると共に接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅを短絡させる短絡部材６ａと共に締付ネジ７により一体的に固着されている。
同様にして、入力側リード線３ｂ、３ｄ、３ｆ、３ｈ、３ｊの他方端は接続端子４ｆ、４ｇ、４ｈ、４ｉ、４ｊに接続されると共に接続端子４ｆ、４ｇ、４ｈ、４ｉ、４ｊを短絡させる短絡部材６ｂと共に締付ネジ７により一体的に固着されている。 The other end of the input side lead wires 3a, 3c, 3e, 3g, and 3i is connected to the connection terminals 4a, 4b, 4c, 4d, and 4e, and the short-circuit member 6a that short-circuits the connection terminals 4a, 4b, 4c, 4d, and 4e. At the same time, it is integrally fixed by a fastening screw 7.
Similarly, the other ends of the input-side lead wires 3b, 3d, 3f, 3h, and 3j are connected to the connection terminals 4f, 4g, 4h, 4i, and 4j, and the connection terminals 4f, 4g, 4h, 4i, and 4j are short-circuited. Together with the short-circuit member 6b to be fixed, the fixing screw 7 is integrally fixed.

９は、バッテリー２ａ、２ｂ、２ｃ、２ｄ、２ｅの直流電圧を交流電圧に変換するインバータ、１０は商用電源から入力端子５に入力された交流電圧を整流する整流器、１１はインバータ９がスイッチング動作時に発生する高周波成分の電圧が入力端子５を介して外部に出力されるのを防止するフィルタである。   9 is an inverter that converts the DC voltage of the batteries 2a, 2b, 2c, 2d, and 2e into an AC voltage, 10 is a rectifier that rectifies the AC voltage input from the commercial power source to the input terminal 5, and 11 is a switching operation of the inverter 9 This is a filter that prevents high-frequency component voltages that are sometimes generated from being output to the outside via the input terminal 5.

なお、短絡部材６ａ，６ｂは略く字状に形成されており、入力側リード線３ａ、３ｂ、３ｃ、３ｄ、３ｅ、３ｆ、３ｇ、３ｈ、３ｉ、３ｊの通電電流容量を大きくする場合には、この入力側リード線を背中合わせに併設して接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅ、４ｆ、４ｇ、４ｈ、４ｉ、４ｊに固着する。（図４に示す）   The short-circuit members 6a and 6b are formed in a substantially square shape, and are used to increase the current carrying capacity of the input-side lead wires 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, and 3j. Are fixed to the connection terminals 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, 4j with the input-side lead wires arranged back to back. (Shown in Figure 4)

次に、以上のように構成された無停電電源装置１００の動作について図３及び図５を用いて説明する。
商用電源から入力端子５に交流電圧が入力されると、整流器１０によって直流に電力変換され、出力側リード線８ａ、８ｂ、８ｃ、８ｄ、８ｅ、８ｆ、８ｇ、８ｈ、８ｉ、８ｊから接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅ、４ｆ、４ｇ、４ｈ、４ｉ、４ｊ、さらに入力側リード線３ａ、３ｂ、３ｃ、３ｄ、３ｅ、３ｆ、３ｇ、３ｈ、３ｉ、３ｊを介してバッテリー２ａ、２ｂ、２ｃ、２ｄ、２ｅへ充電される。 Next, the operation of the uninterruptible power supply 100 configured as described above will be described with reference to FIGS. 3 and 5.
When AC voltage is input from the commercial power source to the input terminal 5, the power is converted to DC by the rectifier 10, and the output side lead wires 8a, 8b, 8c, 8d, 8e, 8f, 8g, 8h, 8i, 8j are connected to the connection terminal. 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, 4j, and the battery 2a via the input side lead wires 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j, 2b, 2c, 2d and 2e are charged.

商用電源が正常のときには、整流器１０によって直流に変換された電力がインバータ９によって再び交流に変換されて負荷装置に出力されるが、停電などで商用電源に異常が発生した場合には、バッテリー２ａ、２ｂ、２ｃ、２ｄ、２ｅに蓄積されていた電力が入力側リード線３ａ、３ｂ、３ｃ、３ｄ、３ｅ、３ｆ、３ｇ、３ｈ、３ｉ、３ｊ、接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅ、４ｆ、４ｇ、４ｈ、４ｉ、４ｊ、出力側リード線８ａ、８ｂ、８ｃ、８ｄ、８ｅ、８ｆ、８ｇ、８ｈ、８ｉ、８ｊを介してりインバータ９に入力されて交流電力に変換された後、負荷装置に対して電力の連続供給が行われる。   When the commercial power supply is normal, the power converted into direct current by the rectifier 10 is converted back to alternating current by the inverter 9 and output to the load device. However, when an abnormality occurs in the commercial power supply due to a power failure or the like, the battery 2a The power stored in 2b, 2c, 2d, and 2e is input side lead wires 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j, connection terminals 4a, 4b, 4c, 4d, and 4e. 4f, 4g, 4h, 4i, 4j, output side lead wires 8a, 8b, 8c, 8d, 8e, 8f, 8g, 8h, 8i, 8j, and input to the inverter 9 to be converted into AC power Thereafter, continuous power supply is performed to the load device.

ここで、例えば、５個のバッテリー２ａ、２ｂ、２ｃ、２ｄ、２ｅの内、４個のバッテリー２ｂ、２ｃ、２ｄ、２ｅが長期間の使用などにより劣化し、このバッテリーの出力電圧が低下した場合についての電流の通電状態について詳細説明する。
バッテリー２ｂ、２ｃ、２ｄ、２ｅが劣化し、バッテリーの出力電圧が低下し電流が出力されなくなると、インバータ９に供給される電流の全てをバッテリー２ａが負担することになる。
なお、現実的にはバッテリー劣化は除々に進行するため、出力電流も除々に低下することになるが、ここでは動作を分かり易くするため、ここではバッテリー劣化が急速に発生したものとして説明する。 Here, for example, of the five batteries 2a, 2b, 2c, 2d, and 2e, the four batteries 2b, 2c, 2d, and 2e have deteriorated due to long-term use or the like, and the output voltage of this battery has decreased. The current energization state for the case will be described in detail.
When the batteries 2b, 2c, 2d, and 2e deteriorate and the output voltage of the battery decreases and no current is output, the battery 2a bears all of the current supplied to the inverter 9.
Actually, since the battery deterioration gradually progresses, the output current also gradually decreases. However, here, in order to make the operation easy to understand, it is assumed here that the battery deterioration has occurred rapidly.

インバータ９に供給される電流の全てをバッテリー２ａが負担することになると、バッテリー２ａから負荷装置に向って通電される電流は、バッテリー２ａのプラス電極から入力側リード線３ａ、端子台４に配設された接続端子４ａに流入した後、短絡部材６ａで略均等に接続端子４ｂ、４ｃ、４ｄ、４ｅに分流されて、接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅから出力側リード線８ａ、８ｂ、８ｃ、８ｄ、８ｅに流入した後、接続点８０で結集した後、インバータ９に入力され、負荷装置へ流入する。
次に、負荷装置からバッテリー２ａに向って通電される電流は、インバータ９から接続点８１で出力側リード線８ｆ、８ｇ、８ｈ、８ｉ、８ｊで分流された後、接続端子４ｆ、４ｇ、４ｈ、４ｉ、４ｊの夫々に流入し、短絡部材６ｂで結集した後、入力側リード線３ｂを介してバッテリー２ａのマイナス電極に戻される。 When the battery 2a bears all of the current supplied to the inverter 9, the current energized from the battery 2a toward the load device is distributed from the positive electrode of the battery 2a to the input side lead wire 3a and the terminal block 4. After flowing into the provided connection terminal 4a, the short-circuit member 6a splits the connection terminals 4b, 4c, 4d, and 4e almost evenly, and the output-side lead wire 8a from the connection terminals 4a, 4b, 4c, 4d, and 4e, After flowing into 8b, 8c, 8d, and 8e, after gathering at the connection point 80, it is input to the inverter 9 and flows into the load device.
Next, the current energized from the load device toward the battery 2a is shunted by the output lead wires 8f, 8g, 8h, 8i, and 8j from the inverter 9 at the connection point 81, and then connected to the connection terminals 4f, 4g, and 4h. 4i and 4j, gathered by the short-circuit member 6b, and then returned to the negative electrode of the battery 2a via the input-side lead wire 3b.

以上のようにこの発明の実施の形態１による無停電電源装置１００によれば、接続端子４ａと他の接続端子４ｂ、４ｃ、４ｄ、４ｅとの間を短絡部材６ａで短絡させると共に接続端子４ｆと他の接続端子４ｇ、４ｈ、４ｉ、４ｊとの間を短絡部材６ｂにより短絡するように構成させたので、バッテリーが劣化し、バッテリーの電流負担に偏りが生じたときにおいても、インバータ９に供給される電流が短絡部材６ａ，６ｂで分流されて接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅ、４ｆ、４ｇ、４ｈ、４ｉ、４ｊを流れるので、接続端子で異常発熱が発生することがない。
ここでもし、短絡部材６ａ，６ｂを用いない場合には、接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅ、４ｆ、４ｇ、４ｈ、４ｉ、４ｊを高容量定格仕様にするなどの必要があり、接続端子が大形化または高コストとなるものである。 As described above, according to the uninterruptible power supply 100 according to Embodiment 1 of the present invention, the connection terminal 4a and the other connection terminals 4b, 4c, 4d, and 4e are short-circuited by the short-circuit member 6a and the connection terminal 4f. And the other connection terminals 4g, 4h, 4i, and 4j are configured to be short-circuited by the short-circuit member 6b. Therefore, even when the battery deteriorates and the current load on the battery is biased, the inverter 9 Since the supplied current is divided by the short-circuit members 6a and 6b and flows through the connection terminals 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, and 4j, abnormal heat generation does not occur at the connection terminals. .
Here, when the short-circuit members 6a and 6b are not used, it is necessary to make the connection terminals 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, and 4j have high capacity rating specifications, The connection terminal is increased in size or cost.

また、複数の接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅ、４ｆ、４ｇ、４ｈ、４ｉ、４ｊが整列させた状態で端子台４に配設され、無停電電源装置本体１に固着されているので、短絡部材６ａ，６ｂは図６に示されるように簡素な形状で形成できるものである。   A plurality of connection terminals 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, and 4j are arranged on the terminal block 4 and fixed to the uninterruptible power supply main body 1. Therefore, the short-circuit members 6a and 6b can be formed in a simple shape as shown in FIG.

さらにまた、短絡部材６ａ，６ｂを略く字状に形成させているので、入力側リード線３ａ、３ｂ、３ｃ、３ｄ、３ｅ、３ｆ、３ｇ、３ｈ、３ｉ、３ｊの通電電流容量を大きくするために、この入力側リード線を背中合わせにして接続端子４ａ、４ｂ、４ｃ、４ｄ、４ｅ、４ｆ、４ｇ、４ｈ、４ｉ、４ｊに固着する場合に、入力側リード線の突設部が短絡部材６ａ，６ｂに干渉することなく固着できる。（図４参照）   Furthermore, since the short-circuit members 6a and 6b are formed in a substantially rectangular shape, the current carrying capacity of the input-side lead wires 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 3j is increased. Therefore, when the input side lead wires are back-to-back and fixed to the connection terminals 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, 4j, the protruding portion of the input side lead wire is a short-circuit member. It can fix without interfering with 6a, 6b. (See Figure 4)

なお、上記の実施例ではバッテリー２ａ、２ｂ、２ｃ、２ｄ、２ｅを５個で構成させ、４個のバッテリー２ｂ、２ｃ、２ｄ、２ｅが劣化した場合について説明したが、１〜３個のバッテリーが劣化した場合についてもインバータ９に供給される電流が短絡部材６ａ，６ｂで分流されるので、同様の効果を奏する。   In the above embodiment, the case where five batteries 2a, 2b, 2c, 2d, and 2e are configured and the four batteries 2b, 2c, 2d, and 2e are deteriorated has been described. Since the current supplied to the inverter 9 is also shunted by the short-circuit members 6a and 6b, the same effect can be obtained.

また、短絡部材６ａ，６ｂは、５個の接続端子を短絡するように形成させたが、複数の接続端子のいずれか１つと前記接続端子以外の接続端子の少なくともいずれか１つとの間を短絡するように構成させることで、インバータ９に供給される電流が短絡部材６ａ，６ｂで分流されて接続端子を流れるので接続端子での温度上昇を減少させることができる。   Further, the short-circuit members 6a and 6b are formed so as to short-circuit the five connection terminals, but short-circuit between any one of the plurality of connection terminals and at least one of the connection terminals other than the connection terminals. By making it comprise, since the electric current supplied to the inverter 9 is shunted by the short-circuit members 6a and 6b and flows through the connection terminal, the temperature rise at the connection terminal can be reduced.

本発明の実施形態１における無停電電源装置を示す外観斜視図である。It is an external appearance perspective view which shows the uninterruptible power supply in Embodiment 1 of this invention. 図１の無停電電源装置本体の正面図である。It is a front view of the uninterruptible power supply main body of FIG. 図２の要部拡大斜視図である。It is a principal part expansion perspective view of FIG. 図２の要部一部断面拡大側面図である。It is a principal part partial cross-section enlarged side view of FIG. 図１の構成を示すブロック図Block diagram showing the configuration of FIG. 図３の短絡部材の拡大斜視図である。It is an expansion perspective view of the short circuit member of FIG.

符号の説明Explanation of symbols

１ 無停電電源装置本体、２ａ〜２ｅ バッテリー、３ａ〜３ｊ 入力側リード線、
４ 端子台、４ａ〜４j 接続端子、６ａ，６ｂ 短絡部材、
８ａ〜８j 出力側リード線、９ インバータ、
８０，８１ 接続点、１００ 無停電電源装置。

1 uninterruptible power supply main unit, 2a-2e battery, 3a-3j input side lead wire,
4 terminal block, 4a-4j connection terminal, 6a, 6b short-circuit member,
8a-8j Output side lead wire, 9 Inverter,
80, 81 connection point, 100 uninterruptible power supply.

Claims (3)

停電発生時に複数のバッテリーの電力を用いてインバータにより交流電力を生成させて負荷装置に出力する無停電電源装置において、
前記インバータを収納する無停電電源装置本体と、
この無停電電源装置本体に配設され前記複数のバッテリーの夫々と入力側リード線で接続される複数の接続端子と、
一方端が前記接続端子の夫々に接続され他方端が接続点で電気的に結線されて前記インバータに接続された出力側リード線と、
前記複数の接続端子のいずれか１つとこの接続端子以外の接続端子の少なくともいずれか１つとの間を短絡する短絡部材とで構成させたことを特徴とする無停電電源装置。 In an uninterruptible power supply that generates AC power by an inverter using the power of multiple batteries when a power failure occurs and outputs it to the load device,
An uninterruptible power supply body that houses the inverter;
A plurality of connection terminals that are arranged in the uninterruptible power supply main body and are connected to each of the plurality of batteries by input-side lead wires,
An output side lead wire having one end connected to each of the connection terminals and the other end electrically connected at a connection point and connected to the inverter;
An uninterruptible power supply comprising a short-circuit member that short-circuits between any one of the plurality of connection terminals and at least one connection terminal other than the connection terminals. 複数の接続端子を整列させた状態で無停電電源装置本体に固着させる端子台を備えたことを特徴とする請求項１記載の無停電電源装置。 The uninterruptible power supply according to claim 1, further comprising a terminal block that is fixed to the uninterruptible power supply main body in a state where a plurality of connection terminals are aligned. 短絡部材を略く字状に形成したことを特徴とする請求項１記載の無停電電源装置。

2. The uninterruptible power supply according to claim 1, wherein the short-circuit member is formed in a substantially square shape.

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JP2019006602A (en) * 2017-06-28 2019-01-17 フジテック株式会社 Backup device for elevator and backup method

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