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JP5329326B2 - Power distribution equipment - Google Patents
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JP5329326B2 - Power distribution equipment - Google Patents

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JP5329326B2
JP5329326B2 JP2009168445A JP2009168445A JP5329326B2 JP 5329326 B2 JP5329326 B2 JP 5329326B2 JP 2009168445 A JP2009168445 A JP 2009168445A JP 2009168445 A JP2009168445 A JP 2009168445A JP 5329326 B2 JP5329326 B2 JP 5329326B2
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terminal cover
terminal
meter
instrument
state
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JP2011022056A (en
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薫生 浅野
一博 菊池
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Osaki Electric Co Ltd
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Osaki Electric Co Ltd
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Description

本発明は、雨線外で使用する強化耐候形の場合や、付加機器を装着する場合などの比較的大型の端子カバーを具備する電子式を含む電力量計、タイムスイッチなどの配電機器に関するものである。   The present invention relates to a power distribution device such as a watt hour meter and a time switch including an electronic type equipped with a relatively large terminal cover in the case of a reinforced weatherproof type used outside a rain line or when an additional device is mounted. It is.

電子式電力量計の外観は、図13ないし図15に示されるように、計量値を表示する表示部21を含む計器22、電線を接続する端子部23、端子部23を覆う端子カバー24より構成されている。端子カバー24は、雨線内や計器箱内、すなわち雨のかからない場所で使用する普通耐候仕様と、雨線外、すなわち雨が直接かかる場所で使用する強化耐候仕様のものがある。   As shown in FIG. 13 to FIG. 15, the external appearance of the electronic watt hour meter is from an instrument 22 including a display unit 21 that displays a measured value, a terminal unit 23 that connects an electric wire, and a terminal cover 24 that covers the terminal unit 23. It is configured. The terminal cover 24 includes a normal weathering specification used in a rain line or an instrument box, that is, a place not exposed to rain, and a reinforced weathering specification used outside the rain line, that is, a place where rain is directly applied.

雨線外で使用する強化耐候形の端子カバー24は、端子部23の電線接続部分を完全に覆い、風雨にさらされても機能に支障をきたさない構造になっているため、普通耐候形の端子カバーより大きい。したがって、端子カバー24を端子部23に取り付けた状態では、物流、保管、計器取付け・取外しの各運用において変形等の損傷を受けること、および全体寸法が大きくなることにより、分離して取り扱うことになる。このため、保管においては両者のスペースが必要であり、紛失の可能性もある。   The reinforced weather-proof terminal cover 24 used outside the rain line completely covers the wire connection portion of the terminal portion 23 and has a structure that does not hinder its function even when exposed to wind and rain. Larger than the terminal cover. Therefore, when the terminal cover 24 is attached to the terminal portion 23, it will be handled separately due to damage such as deformation in each operation of distribution, storage, instrument attachment / detachment, and an increase in overall dimensions. Become. For this reason, both spaces are required for storage, and there is a possibility of loss.

また、端子カバー内に付加機器を装着するものが特許文献1に示されているが、このような場合には図13の取付け状態での寸法A1がさらに大形化することも考えられる。   Moreover, although what attaches an additional apparatus in a terminal cover is shown by patent document 1, in such a case, size A1 in the attachment state of FIG. 13 may further enlarge.

特開2004−77157号公報JP 2004-77157 A

特に電子式電力量計は、電子部品の小形・高機能化に伴い小形軽量化が進展し、外装・内装の構造物も小形化やプラスチック化がより容易になった。一方、電力量計の端子部23は電線を接続するため、絶縁距離確保という安全性、作業性の面からは小形化は難しい。このため、端子部23を保護するための端子カバー24も小形化は難しく、各運用は従来のままとなる。   In particular, electronic watt-hour meters have been reduced in size and weight as electronic parts have become smaller and more functional, and exterior and interior structures have become easier to downsize and plasticize. On the other hand, since the terminal portion 23 of the watt-hour meter is connected to an electric wire, it is difficult to reduce the size from the viewpoint of safety and workability for securing an insulation distance. For this reason, it is difficult to reduce the size of the terminal cover 24 for protecting the terminal portion 23, and each operation remains the same.

(発明の目的)
本発明の目的は、雨線外で使用する強化耐候形の場合や、付加機器を装着する場合などの比較的大型の端子カバーを具備する配電機器において、物流、保管、計器取付け・取外しの各運用における取り扱いを容易にし、運用コストを低減することである。
(Object of invention)
The purpose of the present invention is to distribute, store, and install / remove instruments in power distribution equipment with a relatively large terminal cover, such as in the case of a strengthened weatherproof type used outside the rain line or when an additional device is mounted. It is to facilitate handling in operation and reduce operation costs.

上記目的を達成するために、本発明の配電機器は、計器および端子部と、前記端子部を計器の使用状態において覆う端子カバーとを有する配電機器において、前記端子カバーの内部空間の大きさを、物流・保管状態にするために前記計器および端子部の少なくとも計器を収容可能な大きさとしたことを特徴とするものである。   In order to achieve the above object, a power distribution device according to the present invention is a power distribution device having a meter, a terminal portion, and a terminal cover that covers the terminal portion in a use state of the meter. In order to obtain a physical distribution / storage state, at least the meter of the meter and the terminal portion can be accommodated.

本発明によれば、雨線外で使用する強化耐候形の場合や、付加機器を装着する場合などの比較的大型の端子カバーを具備する配電機器において、物流、保管、計器取付け・取外しの各運用における取り扱いを容易にし、運用コストを低減することができる。   According to the present invention, distribution, storage, instrument mounting / removal, etc. in a distribution device having a relatively large terminal cover such as a reinforced weatherproof type used outside a rain line or a case where an additional device is mounted. Handling in operation can be facilitated and operation costs can be reduced.

また、計器と端子カバーを1個として扱えるので、管理を容易にすることができる。さらに、占有面積・体積を最小にでき、また、表裏両面の形状により数段に重ねることが可能になる。   Moreover, since the instrument and the terminal cover can be handled as one piece, management can be facilitated. Furthermore, the occupied area and volume can be minimized, and it can be stacked in several stages depending on the shapes of both the front and back surfaces.

本発明の実施例1である電子式電力量計を示す図である。It is a figure which shows the electronic watt-hour meter which is Example 1 of this invention. 実施例1の物流・保管状態を示す図である。It is a figure which shows the physical distribution and storage state of Example 1. FIG. 実施例2を示す分解斜視図である。FIG. 6 is an exploded perspective view showing a second embodiment. 実施例2の使用状態を示す斜視図である。It is a perspective view which shows the use condition of Example 2. FIG. 実施例2の物流・保管状態に結合される前の状態を示す分解斜視図である。It is a disassembled perspective view which shows the state before combining with the physical distribution and storage state of Example 2. FIG. 実施例2の物流・保管状態を示す斜視図である。It is a perspective view which shows the physical distribution and storage state of Example 2. FIG. 実施例2の付加機器を収容する状態を示す分解斜視図である。It is a disassembled perspective view which shows the state which accommodates the additional apparatus of Example 2. FIG. 実施例3を示す分解斜視図である。10 is an exploded perspective view showing Example 3. FIG. 実施例3の使用状態を示す斜視図である。FIG. 10 is a perspective view showing a usage state of Example 3. 実施例3の物流・保管状態に結合される前の状態を示す分解斜視図である。It is a disassembled perspective view which shows the state before combining with the physical distribution and storage state of Example 3. FIG. 実施例3の物流・保管状態を示す斜視図である。It is a perspective view which shows the physical distribution and storage state of Example 3. FIG. 実施例3の付加機器を収容する状態を示す分解斜視図である。It is a disassembled perspective view which shows the state which accommodates the additional apparatus of Example 3. FIG. 現行計器の電子式電力量計を示す図である。It is a figure which shows the electronic watt-hour meter of the present meter. 現行計器を示す分解斜視図である。It is a disassembled perspective view which shows the present instrument. 現行計器の使用状態を示す斜視図である。It is a perspective view which shows the use condition of the present instrument.

本発明を実施するための形態は、以下の実施例1ないし3に示す通りである。   The mode for carrying out the present invention is as shown in Examples 1 to 3 below.

図1は本発明の実施例1である電子式電力量計の正面図および側面図である。正面側に表示部1を有する計器2は、電子部品の進展等により、現行より小形化されている。電線を接続する端子部3は、計器2に固定されている。端子部3を覆う端子カバー4は、計器2の大きさとの関連上、現行より大形になっているが、総寸法A2は現行の寸法A1より小さくなっている。端子カバー4は不図示の端子カバーねじにより端子部3に着脱可能に取り付けられる。端子カバー4は、その正面、両側面、電線が通る開口を除く底面で閉じられており、背面で開いている。上面は閉じている場合と、開いている場合がある。図1は電子式電力量計の使用状態を示しているが、物流、保管、計器取付け・取外しの各運用では、端子カバー4は端子部3から取り外されている。なお、計器2のケース、端子部3の端子金具を保持する端子ブロック、端子カバー4は、プラスチック製である。   FIG. 1 is a front view and a side view of an electronic watt-hour meter that is Embodiment 1 of the present invention. The instrument 2 having the display unit 1 on the front side has been reduced in size from the present due to the progress of electronic components. The terminal portion 3 for connecting the electric wire is fixed to the meter 2. The terminal cover 4 covering the terminal portion 3 is larger than the current size in relation to the size of the meter 2, but the total dimension A2 is smaller than the current dimension A1. The terminal cover 4 is detachably attached to the terminal portion 3 by a terminal cover screw (not shown). The terminal cover 4 is closed on the front surface, both side surfaces, and the bottom surface except for the opening through which the electric wire passes, and is open on the back surface. The top surface may be closed or open. FIG. 1 shows the usage state of the electronic watt-hour meter, but the terminal cover 4 is removed from the terminal portion 3 in each operation of physical distribution, storage, and instrument attachment / detachment. The case of the instrument 2, the terminal block for holding the terminal fitting of the terminal portion 3, and the terminal cover 4 are made of plastic.

図2は実施例1の物流・保管状態の正面図および側面図である。端子カバー4の内部空間の大きさは、その内部空間に計器2および端子部3を収容できる大きさになっている。したがって、計器2および端子部3を上下逆向きにし、その正面側を端子カバー4の背面側から嵌め込むことにより図2に示されるように計器2および端子部3のほとんどが端子カバー4の内部空間に収容される。この状態での総寸法は端子カバー4の寸法A3となり、総寸法A2よりさらに小さくなる。そのため、一体としてまとまりが良くなり、物流・保管に適しており、振動や衝撃にも強い形態となっている。また、表示部1の表面(表示窓)がプラスチックの場合には、出荷以降の物流、保管、取付現場までの工程で、機械的、熱的にキズや汚れがつき易いが、本発明によれば、表示部1の表面を端子カバー4で保護することができる。また、保管中の埃の堆積等による透過性劣化が発生し易いが、このような品質劣化から保護される。なお、端子カバー4の内部空間の大きさは、計器2のみを収容できる大きさであっても良い。   FIG. 2 is a front view and a side view of the physical distribution / storage state of the first embodiment. The size of the internal space of the terminal cover 4 is large enough to accommodate the instrument 2 and the terminal portion 3 in the internal space. Therefore, the instrument 2 and the terminal part 3 are turned upside down and the front side thereof is fitted from the back side of the terminal cover 4 so that most of the instrument 2 and the terminal part 3 are inside the terminal cover 4 as shown in FIG. Contained in space. The total dimension in this state is the dimension A3 of the terminal cover 4 and is smaller than the total dimension A2. Therefore, the unity is improved as a unit, suitable for logistics and storage, and is strong against vibrations and shocks. In addition, when the surface (display window) of the display unit 1 is plastic, it is easily damaged mechanically and thermally in the processes from distribution to distribution, storage, and installation site after shipment. In this case, the surface of the display unit 1 can be protected by the terminal cover 4. In addition, although permeability deterioration due to dust accumulation during storage is likely to occur, it is protected from such quality degradation. The size of the internal space of the terminal cover 4 may be a size that can accommodate only the meter 2.

実施例2は端子カバー4に比較的大きな付加機器を収容することが可能な実施例である。図3はその分解斜視図である。端子カバー4は、端子カバー枠体4aと、端子カバー枠体4aにねじなどで着脱可能に取り付けられる端子カバー蓋体4bとからなる。端子カバー枠体4aの上面は閉じている。端子カバー枠体4aは端子カバーねじにより端子部3に着脱可能に取り付けられる。端子カバー枠体4aには、比較的大きな付加機器(後述)を支持するための支持板4cおよび支持部材4dが設けられている。端子部3を端子カバー4a,4bで覆ったときには、端子部3の前面に支持板4cが位置することになる。   The second embodiment is an embodiment in which a relatively large additional device can be accommodated in the terminal cover 4. FIG. 3 is an exploded perspective view thereof. The terminal cover 4 includes a terminal cover frame 4a and a terminal cover lid 4b that is detachably attached to the terminal cover frame 4a with screws or the like. The upper surface of the terminal cover frame 4a is closed. The terminal cover frame 4a is detachably attached to the terminal portion 3 with a terminal cover screw. The terminal cover frame 4a is provided with a support plate 4c and a support member 4d for supporting a relatively large additional device (described later). When the terminal portion 3 is covered with the terminal covers 4a and 4b, the support plate 4c is located on the front surface of the terminal portion 3.

計器2の背面角部には凹部5が設けられ、端子カバー枠体4aには凹部5に弾性変形結合する凸部6が設けられている。端子カバー枠体4aの底面には電線が通る開口7が設けられている。   A concave portion 5 is provided at the back corner of the instrument 2, and a convex portion 6 that is elastically deformed and coupled to the concave portion 5 is provided at the terminal cover frame 4 a. An opening 7 through which the electric wire passes is provided on the bottom surface of the terminal cover frame 4a.

図4は計器2および端子部3に端子カバー4(端子カバー枠体4aと端子カバー蓋体4b)が使用状態に組み付けられた状態を示す。   FIG. 4 shows a state in which the terminal cover 4 (the terminal cover frame body 4a and the terminal cover lid body 4b) is assembled to the measuring instrument 2 and the terminal portion 3 in a use state.

図4の状態から物流・保管に適した状態にするためには、計器2および端子部3と端子カバー枠体4aおよび端子カバー蓋体4bとを分離し、図5に示されるように計器2および端子部3を上下逆向きにする。そして、図6に示されるように計器2および端子部3の正面側に端子カバー枠体4aおよび端子カバー蓋体4bを被せると、計器2の凹部5と端子カバー枠体4aの凸部6が弾性変形により結合される。図6の物流・保管状態では、端子部3は支持板4cに面して位置する。   In order to change from the state of FIG. 4 to a state suitable for physical distribution / storage, the meter 2 and the terminal portion 3 are separated from the terminal cover frame 4a and the terminal cover lid 4b, and the meter 2 as shown in FIG. And the terminal part 3 is turned upside down. Then, as shown in FIG. 6, when the terminal cover frame 4a and the terminal cover lid 4b are put on the front side of the meter 2 and the terminal portion 3, the concave portion 5 of the meter 2 and the convex portion 6 of the terminal cover frame 4a are formed. They are joined by elastic deformation. In the physical distribution / storage state of FIG. 6, the terminal portion 3 is located facing the support plate 4c.

図7は実施例2の端子カバー4に比較的大きな付加機器8を収容する様子を示す図である。付加機器8は支持板4cおよび支持部材4dの上に支持され、端子カバー4の内部空間に収容される。場合によっては、ねじなどの固定部材によって着脱可能に固定される。その後、端子カバー蓋体4bが被せられ、端子カバー枠体4aに着脱可能に固定される。   FIG. 7 is a diagram illustrating a state in which a relatively large additional device 8 is accommodated in the terminal cover 4 according to the second embodiment. The additional device 8 is supported on the support plate 4 c and the support member 4 d and is accommodated in the internal space of the terminal cover 4. Depending on the case, it is detachably fixed by a fixing member such as a screw. Thereafter, the terminal cover lid 4b is put on and fixed to the terminal cover frame 4a in a detachable manner.

実施例3は端子カバー4に比較的小さな付加機器を収容することが可能な実施例である。図8はその分解斜視図である。端子カバー4は、実施例2のものとは異なり、端子カバー蓋体4bを有してはおらず、正面が閉じていて、上面が開いている。また、端子カバー4は支持板4cおよび支持部材4dを有してはいない。このため、実施例2と比べると、部品点数が減少する。また、実施例2と同様に、計器2に凹部5が設けられ、端子カバー4に凸部6および開口7が設けられている。計器2の底部で、端子部3の上部前方には、比較的小さな付加機器の一部が収容される収容空間9が設けられている。なお、収容空間9は無くてもよい。   The third embodiment is an embodiment in which a relatively small additional device can be accommodated in the terminal cover 4. FIG. 8 is an exploded perspective view thereof. Unlike the second embodiment, the terminal cover 4 does not have the terminal cover lid 4b, and the front surface is closed and the upper surface is open. Further, the terminal cover 4 does not have the support plate 4c and the support member 4d. For this reason, the number of parts is reduced as compared with the second embodiment. Similarly to the second embodiment, the instrument 2 is provided with a recess 5, and the terminal cover 4 is provided with a protrusion 6 and an opening 7. An accommodation space 9 in which a part of a relatively small additional device is accommodated is provided at the bottom of the meter 2 and in front of the upper portion of the terminal portion 3. Note that the accommodation space 9 may be omitted.

図9は計器2および端子部3に端子カバー4が使用状態に組み付けられた状態を示す。   FIG. 9 shows a state in which the terminal cover 4 is assembled to the instrument 2 and the terminal portion 3 in a use state.

図9の状態から物流・保管に適した状態にするためには、計器2および端子部3と端子カバー4とを分離し、図10に示されるように計器2および端子部3を上下逆向きにする。そして、図11に示されるように計器2および端子部3の正面側に端子カバー4を被せると、計器2の凹部5と端子カバー4の凸部6が弾性変形により結合される。   In order to change the state shown in FIG. 9 into a state suitable for physical distribution and storage, the meter 2 and the terminal unit 3 are separated from the terminal cover 4 and the meter 2 and the terminal unit 3 are turned upside down as shown in FIG. To. Then, as shown in FIG. 11, when the terminal cover 4 is put on the front side of the meter 2 and the terminal portion 3, the concave portion 5 of the meter 2 and the convex portion 6 of the terminal cover 4 are coupled by elastic deformation.

図12は実施例3の端子カバー4に比較的小さな付加機器10を収容する様子を示す図である。付加機器10の一部は計器2の収容空間9に、残りの大部分は端子カバー4の内部空間に、それぞれ収容される。なお、付加機器10は比較的小さいので、例えばコネクタなどにより端子部3に直接取り付けることが可能である。   FIG. 12 is a diagram illustrating a state in which the relatively small additional device 10 is accommodated in the terminal cover 4 of the third embodiment. A part of the additional device 10 is accommodated in the accommodation space 9 of the meter 2, and the remaining most part is accommodated in the internal space of the terminal cover 4. In addition, since the additional apparatus 10 is comparatively small, it can be directly attached to the terminal part 3 with a connector etc., for example.

実施例1ないし3においては、計器2および端子部3の少なくとも計器2を端子カバー4の内部空間に収容したときに、端子カバー4が計器2の表示部1を覆うように計器2に結合しているが、計器2の正面側を保護する必要が無い場合には、計器2の背面側を端子カバー4が覆うように結合しても良い。   In Examples 1 to 3, when at least the meter 2 of the meter 2 and the terminal unit 3 is accommodated in the internal space of the terminal cover 4, the terminal cover 4 is coupled to the meter 2 so as to cover the display unit 1 of the meter 2. However, when it is not necessary to protect the front side of the meter 2, the terminal cover 4 may be coupled so that the back side of the meter 2 is covered.

(本発明と実施例の対応)
凹部5および凸部6が本発明の結合手段に、支持板4cおよび支持部材4dが支持手段に、それぞれ相当する。
(Correspondence between the present invention and the embodiment)
The concave portion 5 and the convex portion 6 correspond to the coupling means of the present invention, and the support plate 4c and the support member 4d correspond to the support means, respectively.

1 表示部
2 計器
3 端子部
4 端子カバー
4a 端子カバー枠体
4b 端子カバー蓋体
4c 支持板
4d 支持部材
5 凹部
6 凸部
8,10 付加機器
DESCRIPTION OF SYMBOLS 1 Display part 2 Instrument 3 Terminal part 4 Terminal cover 4a Terminal cover frame body 4b Terminal cover cover body 4c Support plate 4d Support member 5 Concave part 6 Convex part 8, 10 Additional apparatus

Claims (4)

計器および端子部と、
前記端子部を計器の使用状態において覆う端子カバーとを有する配電機器において、
前記端子カバーの内部空間の大きさを、物流・保管状態にするために前記計器および端子部の少なくとも計器を収容可能な大きさとしたことを特徴とする配電機器。
Instrument and terminal,
In a power distribution device having a terminal cover that covers the terminal part in the usage state of the instrument,
A power distribution device characterized in that the size of the internal space of the terminal cover is set to accommodate at least the meter of the meter and the terminal portion so as to be in a physical distribution / storage state.
前記計器および端子部の少なくとも計器を前記端子カバーの内部空間に収容して物流・保管状態にする際に前記計器と前記端子カバーを結合する結合手段を、前記計器と前記端子カバーはそれぞれ有することを特徴とする請求項1に記載の配電機器。   The instrument and the terminal cover each have coupling means for coupling the instrument and the terminal cover when the instrument and at least the instrument of the terminal portion are accommodated in the internal space of the terminal cover and put into a physical distribution / storage state. The power distribution device according to claim 1. 前記端子カバーは、付加機器を支持する支持手段を有することを特徴とする請求項1または2に記載の配電機器。   The power distribution device according to claim 1, wherein the terminal cover includes support means for supporting the additional device. 物流・保管状態では、前記端子カバーの正面側が前記計器の正面側を覆うことを特徴とする請求項1ないし3のいずれかに記載の配電機器。   The power distribution device according to any one of claims 1 to 3, wherein a front side of the terminal cover covers a front side of the meter in a physical distribution / storage state.
JP2009168445A 2009-07-17 2009-07-17 Power distribution equipment Expired - Fee Related JP5329326B2 (en)

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