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JP5323253B2 - Power sharing apparatus and motor drive system - Google Patents

Power sharing apparatus and motor drive system Download PDF

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Publication number
JP5323253B2
JP5323253B2 JP2012507964A JP2012507964A JP5323253B2 JP 5323253 B2 JP5323253 B2 JP 5323253B2 JP 2012507964 A JP2012507964 A JP 2012507964A JP 2012507964 A JP2012507964 A JP 2012507964A JP 5323253 B2 JP5323253 B2 JP 5323253B2
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power
drive unit
power sharing
positive
motor drive
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JPWO2011121739A1 (en
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誉和 上岡
智 近藤
尚志 中平
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Mitsubishi Electric Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/006—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits the coupling part being secured to apparatus or structure, e.g. duplex wall receptacle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2408—Modular blocks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/0094—Structural association with other electrical or electronic devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Motor Or Generator Frames (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Invalid Beds And Related Equipment (AREA)

Description

本発明は、交流電力を直流電力に変換する電力変換ユニット、サーボドライブユニット、主軸ドライブユニット等のモータ駆動ユニット間で電源電力を共有する電力共有装置、及び、電力変換ユニット、サーボドライブユニット、主軸ドライブユニット等のモータ駆動ユニットと電力共有装置とを備えるモータ駆動システムに関する。   The present invention relates to a power sharing device that shares power power among motor drive units such as a power conversion unit, a servo drive unit, and a spindle drive unit that converts AC power to DC power, and a power conversion unit, a servo drive unit, a spindle drive unit, and the like. The present invention relates to a motor drive system including a motor drive unit and a power sharing device.

従来、隣接して配置された複数のモータ駆動ユニット間で、電源電力を共有するには、各モータ駆動ユニットの電力母線間を連結片で接続していた。電力母線と連結片とは、ボルト・ナット等の固定手段により固定していた。   Conventionally, in order to share power supply power between a plurality of motor drive units arranged adjacent to each other, power buses of each motor drive unit are connected by a connecting piece. The power bus and the connecting piece were fixed by fixing means such as bolts and nuts.

特開昭６０−２８７１０号公報（第２頁、第１、２図）Japanese Unexamined Patent Publication No. 60-28710 (2nd page, FIGS. 1 and 2)

しかしながら、上記従来の技術によれば、電力母線と連結片とをボルト・ナットで締結するので、締結作業に手間がかかる、という問題があった。また、締結作業にドライバー等の工具を必要とするうえに、ボルト・ナットを紛失し易い、という問題もあった。   However, according to the above conventional technique, the power bus and the connecting piece are fastened with the bolts and nuts, and thus there is a problem that the fastening work is troublesome. In addition, a screwdriver and other tools are required for the fastening operation, and bolts and nuts are easily lost.

本発明は、上記に鑑みてなされたものであって、電源電力を共有するためのユニット間の接続が容易で、部品紛失の虞もない電力共有装置を得ることを目的とする。   The present invention has been made in view of the above, and an object of the present invention is to obtain a power sharing apparatus that is easy to connect between units for sharing power supply power and that does not cause any loss of parts.

上述した課題を解決し、目的を達成するために、本発明は、交流電力を直流電力に変換する電力変換ユニット、サーボドライブユニット及び主軸ドライブユニット等の隣接する複数のモータ駆動ユニットの夫々の上面、裏面又は正面に設置され、前記複数のモータ駆動ユニット間を相互に電気的に接続して電力を共有する電力共有装置であって、電力共有装置筐体内に、差込孔が設けられ、側方を向くように互いに平行に配置され、モータ駆動に必要な電流を流すことのできる固定正電極及び固定負電極と、前記差込孔に摺動可能に挿入されて保持され、前記筐体から側方へ規定量突出する突出位置と前記筐体内に収納される収納位置とに出し入れされ、前記突出位置で隣接する電力共有装置の固定正、負電極の差込孔に夫々挿入される可動正電極及び可動負電極と、前記固定正、負電極に夫々固着され、前記モータ駆動ユニットの正、負電極に夫々接続される正、負端子と、を備えることを特徴とする。   In order to solve the above-described problems and achieve the object, the present invention provides an upper surface and a rear surface of each of a plurality of adjacent motor drive units such as a power conversion unit that converts AC power to DC power, a servo drive unit, and a spindle drive unit. Alternatively, a power sharing device that is installed in the front and shares power by electrically connecting the plurality of motor drive units to each other, and an insertion hole is provided in the power sharing device casing, A fixed positive electrode and a fixed negative electrode that are arranged in parallel to each other and can pass a current necessary for driving the motor, and are slidably inserted into the insertion hole and held sideways. Movable inserted into and out of the fixed positive and negative electrode insertion holes of the adjacent power sharing device at the protruding position, which are inserted into and extracted from the protruding position protruding to the specified amount and the storage position stored in the housing. And the electrode and the movable negative electrode, the fixed positive, are respectively fixed to the negative electrode, a positive of the motor drive unit, positive being respectively connected to the negative electrode, characterized in that it comprises a negative terminal.

本発明にかかる電力共有装置は、電源電力を共有するためのユニット間（電力共有装置同士）の接続が容易で、部品紛失の虞もない、という効果を奏する。   The power sharing apparatus according to the present invention is advantageous in that it is easy to connect between units (power sharing apparatuses) for sharing power supply power and there is no risk of component loss.

図１は、本発明の実施の形態の電力共有装置をモータ駆動ユニット上に設置した状態を示す斜視図である。FIG. 1 is a perspective view showing a state in which a power sharing apparatus according to an embodiment of the present invention is installed on a motor drive unit. 図２は、モータ駆動ユニット上に設置した実施の形態の複数の電力共有装置を接続する様子を示す斜視図である。FIG. 2 is a perspective view showing a state in which a plurality of power sharing apparatuses according to the embodiment installed on the motor drive unit are connected. 図３は、実施の形態の電力共有装置を示す透視図である。FIG. 3 is a perspective view illustrating the power sharing apparatus according to the embodiment. 図４は、係止蓋を開き可動正、負電極を突出させた状態の実施の形態の電力共有装置を示す正面図である。FIG. 4 is a front view showing the power sharing apparatus of the embodiment in a state where the locking lid is opened and the movable positive and negative electrodes protrude. 図５は、係止蓋を開き可動正、負電極を収納した状態の実施の形態の電力共有装置を示す正面図である。FIG. 5 is a front view showing the power sharing apparatus of the embodiment in a state where the locking lid is opened and the movable positive and negative electrodes are housed. 図６は、固定正、負電極の差込孔を形成するメッシュ電極を示す斜視図である。FIG. 6 is a perspective view showing a mesh electrode that forms insertion holes for fixed positive and negative electrodes. 図７は、可動正、負電極を突出させ係止蓋を閉じた状態の実施の形態の電力共有装置を示す正面図である。FIG. 7 is a front view showing the power sharing apparatus of the embodiment in a state where the movable positive and negative electrodes protrude and the locking lid is closed. 図８は、可動正、負電極を収納し係止蓋を閉じた状態の実施の形態の電力共有装置を示す正面図である。FIG. 8 is a front view showing the power sharing apparatus of the embodiment in a state where the movable positive and negative electrodes are housed and the locking lid is closed.

以下に、本発明にかかる電力共有装置の実施の形態を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。   Embodiments of a power sharing apparatus according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

実施の形態
図１は、本発明の実施の形態の電力共有装置をモータ駆動ユニット上に設置した状態を示す斜視図であり、図２は、モータ駆動ユニット上に設置した実施の形態の複数の電力共有装置を接続する様子を示す斜視図である。Embodiment FIG. 1 is a perspective view showing a state where a power sharing apparatus according to an embodiment of the present invention is installed on a motor drive unit, and FIG. 2 shows a plurality of embodiments installed on the motor drive unit. It is a perspective view which shows a mode that a power sharing apparatus is connected.

図１及び図２に示すように、実施の形態の電力共有装置２０は、電力変換ユニット１１、サーボドライブユニット１２、主軸ドライブユニット１３等のモータ駆動ユニット１０の上面に設置され、後述するように、モータ駆動ユニット１０の上面に露出させたモータ駆動ユニット１０の正電極及び負電極（図示せず）と電気的に接続される。実施の形態では、電力共有装置２０を、モータ駆動ユニット１０の上面に設置するようにしたが、モータ駆動ユニット１０の裏面又は正面に設置するようにしてもよい。   As shown in FIGS. 1 and 2, the power sharing apparatus 20 according to the embodiment is installed on the upper surface of the motor drive unit 10 such as the power conversion unit 11, the servo drive unit 12, the spindle drive unit 13, etc. The motor drive unit 10 is electrically connected to a positive electrode and a negative electrode (not shown) exposed on the upper surface of the drive unit 10. In the embodiment, the power sharing device 20 is installed on the upper surface of the motor drive unit 10, but may be installed on the back surface or the front surface of the motor drive unit 10.

図２に示すように、電力共有装置２０を夫々設置した電力変換ユニット１１、サーボドライブユニット１２及び主軸ドライブユニット１３を、互いの側方に隣接させ、一方のユニットの可動正電極２３及び可動負電極２４を、他方のユニットの固定正電極２１及び固定負電極２２（図３参照）の差込孔２１ａ、２２ａに差込むことにより、一方のユニットの電源電力を他方のユニットと共有することができる。上記のように、電力共有装置２０によって接続された電力変換ユニット１１、サーボドライブユニット１２及び主軸ドライブユニット１３は、モータ駆動システムを構成する。   As shown in FIG. 2, the power conversion unit 11, the servo drive unit 12, and the spindle drive unit 13 each having the power sharing device 20 installed are adjacent to each other, and the movable positive electrode 23 and the movable negative electrode 24 of one unit are disposed. Is inserted into the insertion holes 21a and 22a of the fixed positive electrode 21 and the fixed negative electrode 22 (see FIG. 3) of the other unit, so that the power supply power of one unit can be shared with the other unit. As described above, the power conversion unit 11, the servo drive unit 12, and the spindle drive unit 13 connected by the power sharing apparatus 20 constitute a motor drive system.

図３は、実施の形態の電力共有装置を示す透視図であり、図４は、係止蓋を開き可動正、負電極を突出させた状態の実施の形態の電力共有装置を示す正面図であり、図５は、係止蓋を開き可動正、負電極を収納した状態の実施の形態の電力共有装置を示す正面図であり、図６は、固定正、負電極の差込孔を形成するメッシュ電極を示す斜視図である。   FIG. 3 is a perspective view illustrating the power sharing apparatus according to the embodiment. FIG. 4 is a front view illustrating the power sharing apparatus according to the embodiment in a state where the locking lid is opened and the movable positive and negative electrodes protrude. FIG. 5 is a front view showing the power sharing device of the embodiment in a state in which the locking lid is opened and the movable positive and negative electrodes are housed, and FIG. 6 is a diagram showing the insertion holes for the fixed positive and negative electrodes. It is a perspective view which shows the mesh electrode to perform.

実施の形態の電力共有装置２０は、モータ駆動ユニット１０のユニット筐体１０ａと同一の幅を有する電力共有装置筐体２０ａ（以下、単に「筐体２０ａ」という。）を備えている。ユニット筐体１０ａと筐体２０ａを同一幅とすることにより、後述するスライダー２７を規定の突出位置にしたときの、筐体２０ａ外部への可動正、負電極２３、２４の露出量、及び可動正、負電極２３、２４の突出長を短くすることができる。   The power sharing apparatus 20 according to the embodiment includes a power sharing apparatus casing 20a (hereinafter simply referred to as “casing 20a”) having the same width as the unit casing 10a of the motor drive unit 10. By making the unit casing 10a and the casing 20a have the same width, the movable positive to the outside of the casing 20a, the exposure amount of the negative electrodes 23 and 24, and the movable when the slider 27 described later is set to a predetermined protruding position. The protruding lengths of the positive and negative electrodes 23 and 24 can be shortened.

図３〜図５に示すように、電力共有装置２０は、筐体２０ａ内に、差込孔２１ａ、２２ａが設けられ側方を向くように互いに平行に配置され、モータ駆動に必要な電流を流すことのできる固定正電極２１及び固定負電極２２と、差込孔２１ａ、２２ａの一側に摺動可能に挿入され筐体２０ａから一側方へ規定量突出可能なピン形の可動正電極２３及び可動負電極２４と、固定正、負電極２１、２２に夫々固着され、モータ駆動ユニット１０の正、負電極（図示せず）に夫々接続される正端子２５及び負端子２６と、を備えている。図６に示すように、固定正、負電極２１、２２の差込孔２１ａ、２２ａは、内壁面がメッシュ電極２１ｂ、２２ｂで形成されたメッシュ構造となっている。メッシュ電極２１ｂ、２２ｂは、弾性を有し、可動正、負電極２３、２４に弾性的に押付けられ、両者の接触面積を増大させ、電流を流し易くしている。   As shown in FIG. 3 to FIG. 5, the power sharing device 20 is provided with insertion holes 21 a and 22 a in the housing 20 a so as to be directed in parallel to each other, and the current necessary for driving the motor is supplied. A fixed positive electrode 21 and a fixed negative electrode 22 that can flow, and a pin-shaped movable positive electrode that is slidably inserted into one side of the insertion holes 21a and 22a and can project a predetermined amount from the housing 20a to one side. 23 and the movable negative electrode 24, and the positive terminal 25 and the negative terminal 26 fixed to the fixed positive and negative electrodes 21 and 22, respectively, and connected to the positive and negative electrodes (not shown) of the motor drive unit 10, respectively. I have. As shown in FIG. 6, the insertion holes 21a and 22a of the fixed positive and negative electrodes 21 and 22 have a mesh structure in which inner wall surfaces are formed by mesh electrodes 21b and 22b. The mesh electrodes 21b and 22b have elasticity and are elastically pressed against the movable positive and negative electrodes 23 and 24, thereby increasing the contact area between the two and making it easy for current to flow.

正端子２５及び負端子２６は、平面視でＬ字形に形成され、短辺で夫々固定正電極２１及び固定負電極２２の下側に固着されている。正端子２５及び負端子２６の長辺の先端部のネジ止め孔２５ａ、２６ａは、平面視で、固定正電極２１及び固定負電極２２の真下から横にずれた位置に配置されている。   The positive terminal 25 and the negative terminal 26 are formed in an L shape in a plan view, and are fixed to the lower side of the fixed positive electrode 21 and the fixed negative electrode 22 with short sides, respectively. The screwing holes 25a, 26a at the long side tips of the positive terminal 25 and the negative terminal 26 are arranged at positions shifted laterally from directly below the fixed positive electrode 21 and the fixed negative electrode 22 in plan view.

それ故、筐体２０ａの上蓋２０ｂを開き、筐体２０ａ内にドライバーを差し込んで、ネジ止め孔２５ａ、２６ａを利用して、正端子２５及び負端子２６を、モータ駆動ユニット１０の正電極及び負電極（図示せず）にネジ止めすることができる。このようにして、モータ駆動ユニット１０の電源電力を電力共有装置２０の可動正、負電極２３、２４まで取り出すことができる。   Therefore, the upper lid 20b of the casing 20a is opened, a driver is inserted into the casing 20a, and the positive terminals 25 and the negative terminals 26 are connected to the positive electrodes of the motor drive unit 10 using the screw holes 25a and 26a. It can be screwed to the negative electrode (not shown). In this way, the power source power of the motor drive unit 10 can be taken out to the movable positive and negative electrodes 23 and 24 of the power sharing device 20.

可動正電極２３及び可動負電極２４は、スライダー２７と一体となっており、スライダー２７のスライド操作により、筐体２０ａから一側方へ規定量突出する突出位置（図４参照）と、筐体２０ａ内に収納される収納位置（図５参照）と、に出し入れすることができる。   The movable positive electrode 23 and the movable negative electrode 24 are integrated with the slider 27. When the slider 27 is slid, a projecting position (see FIG. 4) projects from the housing 20a to one side by a specified amount. It can be put in and out of the storage position (see FIG. 5) stored in 20a.

可動正電極２３及び可動負電極２４の先端部は、隣接する電力共有装置２０の固定正、負電極２１、２２の差込孔２１ａ、２２ａに差込み易いように、丸みを帯びており、可動正、負電極２３、２４の中心と差込孔２１ａ、２２ａの中心が多少ずれていても、容易に差込むことができる。   The distal ends of the movable positive electrode 23 and the movable negative electrode 24 are rounded so that they can be easily inserted into the fixed holes of the adjacent power sharing device 20 and the insertion holes 21a, 22a of the negative electrodes 21, 22. Even if the centers of the negative electrodes 23 and 24 and the centers of the insertion holes 21a and 22a are slightly deviated, they can be easily inserted.

以上説明したように、実施の形態の電力共有装置２０によれば、スライダー２７を収納位置から規定量スライドさせると、電力共有装置２０から可動正、負電極２３、２４が規定量突出し、隣接するモータ駆動ユニット１０に設置された電力共有装置２０の固定正、負電極２１、２２に差込まれ、モータ駆動ユニット１０と隣接するモータ駆動ユニット１０とで電源電力を共有することができる。スライダー２７をスライドさせるだけで、可動正、負電極２３、２４と固定正、負電極２１、２２とを容易に接続することができる。   As described above, according to the power sharing apparatus 20 of the embodiment, when the slider 27 is slid by a specified amount from the storage position, the movable positive and negative electrodes 23 and 24 protrude from the power sharing apparatus 20 by a specified amount and are adjacent to each other. The motor drive unit 10 and the adjacent motor drive unit 10 inserted into the fixed positive and negative electrodes 21 and 22 of the power sharing device 20 installed in the motor drive unit 10 can be shared. The movable positive and negative electrodes 23 and 24 and the fixed positive and negative electrodes 21 and 22 can be easily connected by simply sliding the slider 27.

また、筐体２０ａは、スライダー２７を、可動正、負電極２３、２４の規定の突出位置及び収納位置で夫々係止する係止蓋２０ｃを備えている。   Further, the housing 20a includes a locking lid 20c that locks the slider 27 at the predetermined protruding position and the storage position of the movable positive and negative electrodes 23 and 24, respectively.

スライダー２７には、操作ツマミとなる山形の突起２７ａが設けられ、係止蓋２０ｃには、可動正、負電極２３、２４が、規定の突出位置又は収納位置にあるとき、係止蓋２０ｃを閉じると、突起２７ａに嵌合してスライダー２７を係止する突出係止孔２０ｄ及び収納係止孔２０ｅが設けられている。   The slider 27 is provided with a mountain-shaped protrusion 27a that serves as an operation knob. When the movable positive and negative electrodes 23 and 24 are in the specified protruding position or the storage position, the locking lid 20c is provided with the locking lid 20c. When closed, there are provided a protrusion locking hole 20d and a storage locking hole 20e for engaging with the protrusion 27a and locking the slider 27.

スライダー２７が規定の突出位置又は収納位置に位置していないときに、係止蓋２０ｃを閉じると、係止蓋２０ｃと突起２７ａが干渉し、係止蓋２０ｃが閉じない構造となっている。それ故、図４に示すように、隣接する電力共有装置２０同士の接続状態のとき、可動正、負電極２３、２４が、隣接する電力共有装置２０の固定正、負電極２１、２２と正常に接続されているか否か、容易に確認することができる。   If the locking lid 20c is closed when the slider 27 is not located at the specified protruding position or storage position, the locking lid 20c and the protrusion 27a interfere with each other, and the locking lid 20c does not close. Therefore, as shown in FIG. 4, when the adjacent power sharing devices 20 are connected to each other, the movable positive and negative electrodes 23 and 24 are normal with the fixed positive and negative electrodes 21 and 22 of the adjacent power sharing device 20. It can be easily confirmed whether it is connected to.

図７は、可動正、負電極を突出させ係止蓋を閉じた状態の実施の形態の電力共有装置を示す正面図である。図７に示すように、スライダー２７の突起２７ａが、係止蓋２０ｃに設けられた突出係止孔２０ｄと嵌合し、係止蓋２０ｃが閉じるので、正常に接続されていることが確認できる。   FIG. 7 is a front view showing the power sharing apparatus of the embodiment in a state where the movable positive and negative electrodes protrude and the locking lid is closed. As shown in FIG. 7, the protrusion 27a of the slider 27 is fitted into the protruding locking hole 20d provided in the locking lid 20c, and the locking lid 20c is closed, so that it can be confirmed that the connection is normally made. .

図８は、可動正、負電極を収納し係止蓋を閉じた状態の実施の形態の電力共有装置を示す正面図である。図８に示すように、スライダー２７の突起２７ａが、係止蓋２０ｃに設けられた収納係止孔２０ｅと嵌合し、係止蓋２０ｃが閉じるので、可動正、負電極２３、２４が正常に収納されていることが確認できる。   FIG. 8 is a front view showing the power sharing apparatus of the embodiment in a state where the movable positive and negative electrodes are housed and the locking lid is closed. As shown in FIG. 8, since the protrusion 27a of the slider 27 is fitted into the storage locking hole 20e provided in the locking lid 20c and the locking lid 20c is closed, the movable positive and negative electrodes 23 and 24 are normal. Can be confirmed.

また、図示はしていないが、電力共有装置２０に、係止蓋２０ｃの開閉状態を検出するセンサー及び警告ランプを設け、センサーが係止蓋２０ｃの開状態を検出したときに、警告ランプを点灯するようにするとよい。さらに、電力共有装置２０又はモータ駆動ユニット１０の電源回路に開閉器を接続し、センサーが係止蓋２０ｃの開状態を検出したときに、電源回路を遮断して電源投入ができないようにし、接続不良を防止するとよい。   Although not shown, the power sharing device 20 is provided with a sensor and a warning lamp for detecting the open / closed state of the locking lid 20c, and when the sensor detects the open state of the locking lid 20c, the warning lamp is turned on. It should be lit. Furthermore, a switch is connected to the power supply circuit of the power sharing device 20 or the motor drive unit 10, and when the sensor detects the open state of the locking lid 20c, the power supply circuit is shut off so that the power cannot be turned on. It is good to prevent defects.

図４及び図５に示すように、筐体２０ａは、ユニット筐体１０ａに接する面に、ゴム製の板状の緩衝材２８を備えている。緩衝材２８は、モータ駆動ユニット１０の寸法誤差、電力共有装置２０の寸法誤差、モータ駆動ユニット１０と電力共有装置２０の取付誤差等を吸収し、隣接する電力共有装置２０、２０同士の接続を容易にする。   As shown in FIGS. 4 and 5, the housing 20a includes a rubber plate-like cushioning material 28 on the surface in contact with the unit housing 10a. The buffer material 28 absorbs a dimensional error of the motor drive unit 10, a dimensional error of the power sharing device 20, an attachment error between the motor drive unit 10 and the power sharing device 20, and connects adjacent power sharing devices 20, 20. make it easier.

以上のように、本発明にかかる電力共有装置は、電力変換ユニット、サーボドライブユニット、主軸ドライブユニット等を含んで成るモータ駆動ユニットの電源電力の共有に有用である。   As described above, the power sharing apparatus according to the present invention is useful for sharing power supply power of a motor drive unit including a power conversion unit, a servo drive unit, a spindle drive unit, and the like.

１０ モータ駆動ユニット
１０ａ ユニット筐体
１１ 電力変換ユニット（モータ駆動ユニット）
１２ サーボドライブユニット（モータ駆動ユニット）
１３ 主軸ドライブユニット（モータ駆動ユニット）
２０ 電力共有装置
２０ａ 筐体（電力共有装置筐体）
２０ｂ 上蓋
２０ｃ 係止蓋
２０ｄ 突出係止孔
２０ｅ 収納係止孔
２１ 固定正電極
２１ａ 差込孔
２１ｂ メッシュ電極
２２ 固定負電極
２２ａ 差込孔
２２ｂ メッシュ電極
２３ 可動正電極
２４ 可動負電極
２５ 正端子
２５ａ ネジ止め孔
２６ 負端子
２６ａ ネジ止め孔
２７ スライダー
２７ａ 突起（操作ツマミ）
２８ 緩衝材DESCRIPTION OF SYMBOLS 10 Motor drive unit 10a Unit housing | casing 11 Power conversion unit (motor drive unit)
12 Servo drive unit (motor drive unit)
13 Spindle drive unit (motor drive unit)
20 Power Sharing Device 20a Case (Power Sharing Device Case)
20b Upper lid 20c Locking lid 20d Projection locking hole 20e Storage locking hole 21 Fixed positive electrode 21a Insertion hole 21b Mesh electrode 22 Fixed negative electrode 22a Insertion hole 22b Mesh electrode 23 Movable positive electrode 24 Movable negative electrode 25 Positive terminal 25a Screw fixing hole 26 Negative terminal 26a Screw fixing hole 27 Slider 27a Protrusion (operation knob)
28 cushioning material

Claims (5)

交流電力を直流電力に変換する電力変換ユニット、サーボドライブユニット及び主軸ドライブユニット等の隣接する複数のモータ駆動ユニットの夫々の上面、裏面又は正面に設置され、前記複数のモータ駆動ユニット間を相互に電気的に接続して電力を共有する電力共有装置であって、電力共有装置筐体内に、
差込孔が設けられ、側方を向くように互いに平行に配置され、モータ駆動に必要な電流を流すことのできる固定正電極及び固定負電極と、
前記差込孔に摺動可能に挿入されて保持され、前記筐体から側方へ規定量突出する突出位置と前記筐体内に収納される収納位置とに出し入れされ、前記突出位置で隣接する電力共有装置の固定正、負電極の差込孔に夫々挿入される可動正電極及び可動負電極と、
前記固定正、負電極に夫々固着され、前記モータ駆動ユニットの正、負電極に夫々接続される正、負端子と、
を備えることを特徴とする電力共有装置。A plurality of adjacent motor drive units such as a power conversion unit that converts AC power into DC power, a servo drive unit, and a spindle drive unit are installed on the upper surface, back surface, or front surface, and the plurality of motor drive units are electrically connected to each other. Is a power sharing device that shares power by connecting to a power sharing device housing,
A fixed positive electrode and a fixed negative electrode, which are provided with insertion holes and are arranged in parallel to each other so as to face sideways, and can pass a current necessary for driving the motor;
Electric power that is slidably inserted into the insertion hole and is inserted into and withdrawn from the housing to a projecting position that protrudes a predetermined amount from the housing and a storage position that is stored in the housing, and is adjacent to the projecting position. A movable positive electrode and a movable negative electrode respectively inserted into the fixed positive and negative electrode insertion holes of the shared device;
Positive and negative terminals fixed to the fixed positive and negative electrodes, respectively, and connected to the positive and negative electrodes of the motor drive unit, respectively;
A power sharing apparatus comprising: 前記可動正電極及び可動負電極は、スライダーと一体となっており、該スライダーの操作により、突出位置と収納位置とに出し入れ可能であり、前記スライダーを突出位置にすることにより、容易に隣接するモータ駆動ユニットと電力を共有することが可能であることを特徴とする請求項１に記載の電力共有装置。  The movable positive electrode and the movable negative electrode are integrated with the slider, and can be moved into and out of the protruding position and the storage position by operating the slider, and are easily adjacent to each other by setting the slider to the protruding position. The power sharing apparatus according to claim 1, wherein the power sharing apparatus can share power with the motor drive unit. 前記電力共有装置筐体は、前記スライダー及び可動正、負電極が、規定の突出位置又は収納位置にあるときに閉じることができ、閉じた状態で前記スライダーを係止すると共に前記固定正、負電極及び可動正、負電極に触れられないように保護する係止蓋を備え、前記係止蓋が閉じられないときは、電源投入が行なわれず、警告ランプを点灯して接続不良を防止することを特徴とする請求項２に記載の電力共有装置。  The power sharing device housing can be closed when the slider and the movable positive and negative electrodes are in a predetermined protruding position or storage position, and the slider is locked in the closed state and the fixed positive and negative electrodes are fixed. A locking lid that protects the electrode and the movable positive and negative electrodes from being touched is provided. When the locking lid is not closed, the power is not turned on and a warning lamp is lit to prevent poor connection. The power sharing apparatus according to claim 2. 前記電力共有装置筐体は、前記モータ駆動ユニットのユニット筐体に接する面に、緩衝材を備えることを特徴とする請求項１に記載の電力共有装置。  The power sharing apparatus according to claim 1, wherein the power sharing apparatus casing includes a cushioning material on a surface that contacts the unit casing of the motor drive unit. 請求項１〜４のいずれかに記載の電力共有装置、電力変換ユニット、サーボドライブユニット及び主軸ドライブユニットを備えることを特徴とするモータ駆動システム。  A motor drive system comprising the power sharing device according to any one of claims 1 to 4, a power conversion unit, a servo drive unit, and a spindle drive unit.
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