JP2001093701A - Shunt resistor - Google Patents
Shunt resistorInfo
- Publication number
- JP2001093701A JP2001093701A JP27061699A JP27061699A JP2001093701A JP 2001093701 A JP2001093701 A JP 2001093701A JP 27061699 A JP27061699 A JP 27061699A JP 27061699 A JP27061699 A JP 27061699A JP 2001093701 A JP2001093701 A JP 2001093701A
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- Japan
- Prior art keywords
- pair
- side wall
- shunt resistor
- case
- resistor
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、発熱量が大きいシ
ャント抵抗器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shunt resistor having a large heat value.
【０００２】[0002]
【従来の技術】１Ｗや２Ｗのように比較的大きい電力を
扱うシャント抵抗器は、図５の断面図に示すように、耐
熱性の高いセラミックス製のケース１０１内にシャント
抵抗器本体１０２が配置された構造を有している。シャ
ント抵抗器本体１０２は、金属製の抵抗体１０３の両端
に一対の金属製の端子金具１０４，１０４が固定された
構造を有している。また、ケース１０１は、抵抗体１０
３の両面を覆う一対の側壁部１０５Ａ，１０５Ｂと一対
の端子金具１０４，１０４を突出させる一対の開口部１
０６，１０６とを備えている。そして、一対の側壁部１
０５Ａ，１０５Ｂの一方の側壁部１０５Ａの内壁面が抵
抗体１０３と接触する接触面を構成している。このよう
なシャント抵抗器は、図６に示すように、ケース１０１
内に平板状のシャント抵抗器１０２を配置した後にケー
ス１０１の他方の側壁部１０５Ｂと一対の端子金具１０
４，１０４とに相互に対向する方向に向く力Ｐ１０１，
Ｐ１０２を加えて、一対の端子金具１０４，１０４を側
壁部１０５Ｂの外面即ち側面１０５ａに沿うように折り
曲げて完成する。2. Description of the Related Art As shown in a sectional view of FIG. 5, a shunt resistor which handles relatively large power such as 1 W or 2 W has a shunt resistor body 102 disposed in a ceramic case 101 having high heat resistance. It has the structure which was done. The shunt resistor main body 102 has a structure in which a pair of metal terminal fittings 104 are fixed to both ends of a metal resistor 103. In addition, the case 101 includes the resistor 10
3. A pair of side walls 105A and 105B covering both surfaces of the third and a pair of openings 1 for projecting a pair of terminal fittings 104 and 104, respectively.
06, 106. And a pair of side wall portions 1
The inner wall surface of one of the side walls 105A of 05A and 105B constitutes a contact surface that contacts the resistor 103. Such a shunt resistor is, as shown in FIG.
After the flat shunt resistor 102 is disposed in the inside, the other side wall portion 105B of the case 101 and the pair of terminal fittings 10 are provided.
4,104, a force P101 in a direction facing each other.
By adding P102, the pair of terminal fittings 104, 104 are bent along the outer surface of the side wall portion 105B, that is, along the side surface 105a to complete the terminal fitting.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うに一対の端子金具１０４，１０４を折り曲げると、側
壁部１０５Ｂに加わるＰ１０１によって側壁部１０５Ｂ
にクラックが入るおそれがある。そのため、従来のシャ
ント抵抗器では、一対の端子金具１０４，１０４を折り
曲げるときの折り曲げ条件を厳重に管理しなければなら
ず、製造が煩雑であった。However, when the pair of terminal fittings 104, 104 are bent in this manner, the side wall portion 105B is formed by P101 added to the side wall portion 105B.
Cracks may occur. Therefore, in the conventional shunt resistor, the bending conditions for bending the pair of terminal fittings 104, 104 must be strictly controlled, and the manufacturing is complicated.
【０００４】本発明の目的は、シャント抵抗器本体の一
対の端子金具を折り曲げたときにケースの側壁部にクラ
ックが入るのを防ぐことができるシャント抵抗器を提供
することにある。An object of the present invention is to provide a shunt resistor capable of preventing a crack from entering a side wall of a case when a pair of terminal fittings of a shunt resistor main body are bent.
【０００５】本発明の他の目的は、特別な管理を必要と
することなく一対の端子金具を折り曲げることができ
て、容易に製造できるシャント抵抗器を提供することに
ある。Another object of the present invention is to provide a shunt resistor that can be easily manufactured by bending a pair of terminal fittings without requiring special management.
【０００６】[0006]
【課題を解決するための手段】本発明が改良の対象とす
るシャント抵抗器は、金属製の抵抗体の両端に一対の金
属製の端子金具が固定されたシャント抵抗器本体と、抵
抗体と接触する接触面及び一対の端子金具を突出させる
一対の開口部を備えて抵抗体を覆うセラミックス製のケ
ースとを備えており、一対の端子金具は、ケースの外部
に突出した状態で前述の接触面を有する一方の側壁部と
対向する他方の側壁部の外面に沿うように折り曲げ加工
が施されて成形されている。本発明では、ケースの他方
の側壁部の内壁面に一対の端子金具に折り曲げ加工が施
される際に側壁部に加わる応力に対して側壁部を補強す
る１以上の補強用リブを設ける。本発明のように補強用
リブを設けると、一対の端子金具にケースの他方の側壁
部の外面に沿うように折り曲げ加工を施こしても、この
他方の側壁部が割れるのを補強用リブの補強作用により
防ぐことができる。そのため、従来のように特別な管理
を必要とすることなく一対の端子金具を折り曲げて、シ
ャント抵抗器を容易に製造できる。SUMMARY OF THE INVENTION A shunt resistor to be improved by the present invention comprises a shunt resistor body in which a pair of metal terminal fittings are fixed to both ends of a metal resistor; A ceramic case that covers the resistor with a contact surface that comes into contact and a pair of openings for projecting the pair of terminal fittings. It is formed by being bent along the outer surface of the other side wall portion facing the one side wall portion having a surface. In the present invention, one or more reinforcing ribs are provided on the inner wall surface of the other side wall portion of the case to reinforce the side wall portion against stress applied to the side wall portions when the pair of terminal fittings are bent. When the reinforcing ribs are provided as in the present invention, even if the pair of terminal fittings are bent along the outer surface of the other side wall portion of the case, the other side wall portion is broken. It can be prevented by the reinforcing action. Therefore, the shunt resistor can be easily manufactured by bending the pair of terminal fittings without requiring special management unlike the related art.
【０００７】補強用リブの側壁部を補強する力を高める
には、補強用リブが一方の側壁部と当接するように補強
用リブを形成するのが望ましい。その場合には、抵抗体
に補強用リブが嵌合される孔または溝を形成し、一方の
側壁部の接触面と当接する高さ寸法を有するように補強
用リブを形成すればよい。なお、補強用リブは少なくと
も側壁部の機械的強度を高めることができるものであれ
ばよく、その形状及び配置態様は任意である。[0007] In order to increase the force for reinforcing the side wall of the reinforcing rib, it is desirable to form the reinforcing rib such that the reinforcing rib contacts one of the side walls. In this case, a hole or a groove into which the reinforcing rib is fitted may be formed in the resistor, and the reinforcing rib may be formed so as to have a height dimension to contact the contact surface of one of the side walls. The reinforcing ribs only need to be able to increase at least the mechanical strength of the side wall portion, and the shape and arrangement thereof are arbitrary.
【０００８】前述したように、一対の端子金具は、ケー
スの一方の側壁部と、ケースの一対の開口部からそれぞ
れ突出する一対の端子金具とに相互に対向する向きの力
を加えて折り曲げるので、一対の端子金具を折り曲げ加
工する際には、一対の開口部が並ぶ方向にケースがしな
るように側壁部に力が加わる。そのため、補強用リブと
しては、一対の開口部が並ぶ方向に沿って延び間隔を開
けて配置されたる２本以上の補強用リブを用いるのが最
も望ましい。このような２本以上の補強用リブを用いる
と、ケースが一対の開口部に並ぶ方向にしなるのを抑制
して、側壁部にクラックが入るのを有効に防ぐことがで
きる。このような補強用リブを有するシャント抵抗器の
具体的な構成では、抵抗体を、一対の端子金具が固定さ
れる一対の端子固定部と、一対の端子固定部の対角線上
に位置する端部に一端が連結されて他方の端子固定部に
向かって延びる第１の一対の直線部と、第１の一対の直
線部の他端から他方の直線部に向かって延びる第２の一
対の直線部と、第２の一対の直線部の他端どうしを連結
する連結部とから構成すればよい。そして、第１の一対
の直線部と連結部との間に形成された溝に補強用リブを
それぞれ嵌合すればよい。As described above, the pair of terminal fittings are bent by applying a force in a direction facing each other to the one side wall of the case and the pair of terminal fittings respectively protruding from the pair of openings of the case. When bending the pair of terminal fittings, a force is applied to the side wall portion so that the case bends in the direction in which the pair of openings are arranged. Therefore, as the reinforcing rib, it is most preferable to use two or more reinforcing ribs extending along the direction in which the pair of openings are arranged and arranged at intervals. When two or more such reinforcing ribs are used, it is possible to suppress the case from being arranged in the direction in which the case is aligned with the pair of openings, and to effectively prevent cracks from entering the side wall. In a specific configuration of a shunt resistor having such a reinforcing rib, the resistor is formed by a pair of terminal fixing portions to which a pair of terminal fittings are fixed, and an end portion located on a diagonal line of the pair of terminal fixing portions. And a second pair of straight portions extending from the other end of the first pair of straight portions to the other straight portion. And a connecting portion that connects the other ends of the second pair of straight portions. Then, the reinforcing ribs may be fitted into the grooves formed between the first pair of straight portions and the connecting portions.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して詳細に説明する。図１（Ａ）は本発明の実施
の形態のシャント抵抗器の平面図であり、図１（Ｂ）は
図１（Ａ）のＢ−Ｂ線概略断面図である。なお、図１
（Ｂ）では、理解を容易にするために、シャント抵抗器
本体１の厚み寸法を誇張して描いている。両図に示すよ
うに、本例のシャント抵抗器は、シャント抵抗器本体１
が部分的にケース２内に収納された構造を有している。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1A is a plan view of a shunt resistor according to an embodiment of the present invention, and FIG. 1B is a schematic sectional view taken along line BB of FIG. 1A. FIG.
In (B), the thickness of the shunt resistor body 1 is exaggerated for easy understanding. As shown in both figures, the shunt resistor of the present example is a shunt resistor main body 1.
Has a structure partially housed in the case 2.
【００１０】図２は、ケース２に収納される前（折り曲
げ加工が施される前）のシャント抵抗器本体１を示して
いる。シャント抵抗器本体１は、本図に示すように、金
属製の抵抗体３の両端に一対の金属製の端子金具４，４
が複数の溶接部４ａ…により固定された構造を有してい
る。抵抗体３は、Ｓ字クランク状に曲がりくねった形状
を有しており、一対の端子金具４，４が固定される矩形
状または板状の一対の端子固定部３ａ，３ａと、一対の
端子固定部３ａ，３ａの対角線上に位置する端部に一端
が連結されて他方の端子固定部に向かって延びる矩形状
の第１の一対の直線部３ｂ，３ｂと、第１の一対の直線
部３ｂ，３ｂの他端から他方の直線部に向かって延びる
矩形状の第２の一対の直線部３ｃ，３ｃと、第２の一対
の直線部３ｃ，３ｃの他端どうしを連結する矩形状の連
結部３ｄとを有している。これにより、第１の一対の直
線部の一方の直線部３ｂと連結部３ｄとの間には、矩形
状の第１の溝３ｅが形成され、第１の一対の直線部の他
方の直線部３ｂと連結部３ｄとの間には、第１の溝３ｅ
と平行に延びる矩形状の第２の溝３ｆが形成されること
になる。一対の端子金具４，４は、後述するケース２の
外部に突出した状態で第２の側壁部６ａの側面６ａ２，
６ａ２から裏面または外面６ａ３に沿って折り曲げ加工
が施されて成形されている。FIG. 2 shows the shunt resistor main body 1 before being housed in the case 2 (before being subjected to bending). As shown in the figure, the shunt resistor main body 1 has a pair of metal terminal fittings 4 and 4 at both ends of a metal resistor 3.
Have a structure fixed by a plurality of welds 4a. The resistor 3 has a meandering shape in an S-shaped crank shape, and a pair of rectangular or plate-like terminal fixing portions 3a, 3a to which the pair of terminal fittings 4, 4 are fixed, and a pair of terminal fixing. A first pair of linear portions 3b, 3b having one end connected to diagonal ends of the portions 3a, 3a and extending toward the other terminal fixing portion; and a first pair of linear portions 3b. , 3b extending from the other end of the second straight portion 3c to the other straight portion, and a rectangular connection connecting the other ends of the second pair of straight portions 3c, 3c. 3d. As a result, a rectangular first groove 3e is formed between one straight portion 3b of the first pair of straight portions and the connecting portion 3d, and the other straight portion of the first pair of straight portions is formed. A first groove 3e is provided between the first groove 3e and the connecting portion 3d.
A second rectangular groove 3f extending in parallel with the above is formed. The pair of terminal fittings 4, 4 protrude out of the case 2, which will be described later, and the side faces 6 a 2, 2
It is formed by bending from 6a2 along the back surface or the outer surface 6a3.
【００１１】図３は、シャント抵抗器を構成する前の分
解された状態のケース２を示している。ケース２はセラ
ミックスにより形成されており、図３に示すように、第
１のケース体５と第２のケース体６とが組合されて構成
されている。第１のケース体５は、矩形状の第１の側壁
部（一方の側壁部）５ａと、第１の側壁部５ａの対向す
る２辺から第１の側壁部５ａの面と直交する方向に延び
る一対の対向壁５ｂ，５ｂとを有している。第１の側壁
部５ａの一対の対向壁５ｂ，５ｂに囲まれた内壁面が、
シャント抵抗器本体１の抵抗体３と接触する接触面５ｃ
を構成している。一対の対向壁部５ｂ，５ｂは、第１の
側壁部５ａとは反対側に位置する端部に互いに対向する
段部５ｄ及び５ｅを有している。FIG. 3 shows Case 2 in an exploded state before forming a shunt resistor. The case 2 is formed of ceramics, and as shown in FIG. 3, is configured by combining a first case body 5 and a second case body 6. The first case body 5 has a rectangular first side wall portion (one side wall portion) 5a and a direction perpendicular to the surface of the first side wall portion 5a from two opposing sides of the first side wall portion 5a. It has a pair of opposing walls 5b, 5b extending. The inner wall surface of the first side wall portion 5a surrounded by the pair of opposed walls 5b, 5b is
Contact surface 5c of shunt resistor body 1 that contacts resistor 3
Is composed. The pair of opposing wall portions 5b, 5b have opposing step portions 5d and 5e at ends located on the opposite side to the first side wall portion 5a.
【００１２】第２のケース体６は、第１の側壁部５ａと
対向する矩形状の第２の側壁部（他方の側壁部）６ａ
と、この第２の側壁部６ａの第１の側壁部５ａと対向す
る内壁面６ａ1上に形成された２つの補強用リブ６ｂ，
６ｃとを有している。この例の補強用リブ６ｂ，６ｃ
は、内壁面６ａ1上に接着剤を用いて接合されている。
しかしながら、補強用リブ６ｂ，６ｃは、第２の側壁部
６ａと一体に成形されていてもよいのは勿論である。第
２の側壁部６ａの対向する２つの縁部６ｄ，６ｅが第１
のケース体５の段部５ｄ及び５ｅにそれぞれ嵌合されて
ケース２が構成される。そして、第１のケース体５と第
２のケース体６とが組合された状態で図１に示すよう
に、側壁部５ａ，６ａ及び一対の対向壁部５ｂ，５ｂに
囲まれてシャント抵抗器本体１の抵抗体３を収納する抵
抗体収納空間２ａと、該抵抗体収納空間２ａと連通しケ
ース２の長手方向の両端に開口する開口部２ｂ，２ｂと
がケース２内に形成されることになる。２つの補強用リ
ブ６ｂ，６ｃは、いずれも直方体形状を有しており、こ
の例では、第１の側壁部５ａの接触面５ｃと当接する高
さ寸法を有している。また、これら２つの補強用リブ６
ｂ，６ｃは、一対の開口部２ｂ，２ｂが並ぶ方向に沿っ
て延びるように間隔を開けて平行に配置されており、シ
ャント抵抗器本体１がケース２に収納された状態でシャ
ント抵抗器本体１の第１の溝３ｅ及び第２の溝３ｆにそ
れぞれ嵌合される。The second case body 6 has a rectangular second side wall (the other side wall) 6a opposed to the first side wall 5a.
And two reinforcing ribs 6b formed on an inner wall surface 6a1 of the second side wall portion 6a facing the first side wall portion 5a.
6c. Reinforcing ribs 6b, 6c of this example
Are bonded on the inner wall surface 6a1 using an adhesive.
However, it goes without saying that the reinforcing ribs 6b and 6c may be formed integrally with the second side wall 6a. The two opposing edges 6d and 6e of the second side wall 6a are the first
The case 2 is configured by being fitted to the steps 5d and 5e of the case body 5 respectively. In a state where the first case body 5 and the second case body 6 are combined, as shown in FIG. 1, the shunt resistor is surrounded by the side walls 5a, 6a and the pair of opposing walls 5b, 5b. A resistor housing space 2a for housing the resistor 3 of the main body 1 and openings 2b, 2b communicating with the resistor housing space 2a and opening at both ends in the longitudinal direction of the case 2 are formed in the case 2. become. Each of the two reinforcing ribs 6b and 6c has a rectangular parallelepiped shape. In this example, the reinforcing ribs 6b and 6c have a height dimension that comes into contact with the contact surface 5c of the first side wall 5a. Also, these two reinforcing ribs 6
b, 6c are arranged in parallel at intervals so as to extend along the direction in which the pair of openings 2b, 2b are lined up, and the shunt resistor main body 1 is housed in the case 2 while the shunt resistor main body 1 is housed in the case 2. The first groove 3e and the second groove 3f are fitted respectively.
【００１３】本例のシャント抵抗器は、次のようにして
組み立てる。まず、第２のケース体６の２つの補強用リ
ブ６ｂ，６ｃがシャント抵抗器本体１の第１の溝３ｅ及
び第２の溝３ｆにそれぞれ嵌合されるように、第２のケ
ース体６上にシャント抵抗器本体１を配置する。次に、
第２のケース体６の第２の側壁部６ａの対向する２つの
縁部６ｄ，６ｅ及び第１のケース体５の段部５ｄ及び５
ｅの少なくとも一方に接着剤を塗布してから、両者を嵌
合して接合し、ケース２を作る。この状態において、シ
ャント抵抗器本体１の一対の端子金具４，４は、図４に
示すように、ケース２の一対の開口部２ｂ，２ｂから外
部に突き出ている。次に、ケース２の第２の側壁部６ａ
と一対の端子金具４，４とに相互に対向する方向に向く
力Ｐ１，Ｐ２を加えて、一対の端子金具４，４を第２の
側壁部６ａの側面６ａ2，６ａ2から裏面または外面６ａ
3に沿って折り曲げて、図１に示すようなシャント抵抗
器を完成する。なお、折り曲げた端子金具４，４を第２
の側壁部６ａの裏面または外面６ａ3に接着剤を用いて
接合してもよい。本例では、第２の側壁部６ａと一対の
端子金具４，４とに相互に対向する方向に向く力Ｐ１，
Ｐ２を加えて、一対の端子金具４，４を折り曲げるの
で、折り曲げ加工の際には、一対の開口部２ｂ，２ｂが
並ぶ方向の中央部が凸になるようにケース２がしなる。
しかしながら、一対の開口部２ｂ，２ｂが並ぶ方向に沿
って延び間隔を開けて配置された補強用リブ６ｂ，６ｃ
によりケース２がしなるのが抑制されるので、第２の側
壁部６ａにクラックが入るのを防ぐことができる。The shunt resistor of this embodiment is assembled as follows. First, the second case body 6 is inserted such that the two reinforcing ribs 6b and 6c of the second case body 6 are fitted into the first groove 3e and the second groove 3f of the shunt resistor body 1, respectively. The shunt resistor main body 1 is arranged thereon. next,
Two opposing edges 6d and 6e of the second side wall 6a of the second case body 6 and steps 5d and 5 of the first case body 5
e, an adhesive is applied to at least one of them, and the two are fitted and joined to form the case 2. In this state, the pair of terminal fittings 4 and 4 of the shunt resistor main body 1 protrude outside from the pair of openings 2b and 2b of the case 2 as shown in FIG. Next, the second side wall 6a of the case 2
And a pair of terminal fittings 4 and 4 are applied with forces P1 and P2 facing each other to move the pair of terminal fittings 4 and 4 from the side surfaces 6a2 and 6a2 of the second side wall 6a to the back surface or the outer surface 6a.
Fold along 3 to complete the shunt resistor as shown in FIG. Note that the bent terminal fittings 4 and 4 are
May be bonded to the back surface or the outer surface 6a3 of the side wall 6a using an adhesive. In this example, the forces P1, which are directed to the second side wall portion 6a and the pair of terminal fittings 4, 4 in the direction facing each other.
Since P2 is added to bend the pair of terminal fittings 4 and 4, the case 2 is bent so that the center in the direction in which the pair of openings 2b and 2b is arranged becomes convex during bending.
However, the reinforcing ribs 6b, 6c extending along the direction in which the pair of openings 2b, 2b are arranged are arranged at intervals.
Accordingly, the case 2 is suppressed from bending, so that cracks can be prevented from entering the second side wall 6a.
【００１４】[0014]
【発明の効果】本発明によれば、一対の端子金具にケー
スの側壁部の外面に沿うように折り曲げ加工を施して
も、この側壁部にクラックが入るのを補強用リブの補強
作用により防ぐことができる。そのため、従来のように
特別な管理を必要とすることなく一対の端子金具を折り
曲げて、シャント抵抗器を容易に製造できる。According to the present invention, even if a pair of terminal fittings are bent along the outer surface of the side wall of the case, cracks are prevented from entering the side walls by the reinforcing action of the reinforcing ribs. be able to. Therefore, the shunt resistor can be easily manufactured by bending the pair of terminal fittings without requiring special management unlike the related art.
【図１】（Ａ）は本発明の実施の形態のシャント抵抗器
の平面図であり、（Ｂ）は図１（Ａ）のＢ−Ｂ線断面図
である。FIG. 1A is a plan view of a shunt resistor according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line BB of FIG. 1A.
【図２】ケースに収納される前のシャント抵抗器本体の
平面図である。FIG. 2 is a plan view of a shunt resistor main body before being housed in a case.
【図３】シャント抵抗器を構成する前の分解された状態
のケースを示す斜視図である。FIG. 3 is a perspective view showing a disassembled case before forming a shunt resistor.
【図４】本発明の実施の形態のシャント抵抗器を組み立
てる態様を説明するために用いる概略断面図である。FIG. 4 is a schematic cross-sectional view used to explain an aspect of assembling the shunt resistor according to the embodiment of the present invention.
【図５】従来のシャント抵抗器の概略断面図である。FIG. 5 is a schematic sectional view of a conventional shunt resistor.
【図６】従来のシャント抵抗器を組み立てる態様を説明
するために用いる概略断面図である。FIG. 6 is a schematic cross-sectional view used to describe an aspect of assembling a conventional shunt resistor.
１ シャント抵抗器本体 ２ ケース ３ 抵抗体 ３ａ，３ａ 一対の端子固定部 ３ｂ，３ｂ 第１の一対の直線部 ３ｃ，３ｃ 第２の一対の直線部 ３ｄ 連結部 ３ｅ 第１の溝 ３ｆ 第２の溝 ４ 端子金具 ５ａ 第１の側壁部 ６ａ 第２の側壁部 ６ａ３ 外面 ６ｂ，６ｃ 補強用リブ REFERENCE SIGNS LIST 1 shunt resistor main body 2 case 3 resistor 3a, 3a pair of terminal fixing portions 3b, 3b first pair of linear portions 3c, 3c second pair of linear portions 3d connecting portion 3e first groove 3f second Groove 4 Terminal fitting 5a First side wall 6a Second side wall 6a3 Outer surface 6b, 6c Reinforcing rib
Claims (5)
端子金具が固定されたシャント抵抗器本体と、 前記抵抗体と接触する接触面及び前記一対の端子金具を
突出させる一対の開口部を備えて前記抵抗体を覆うセラ
ミックス製のケースとを備え、 前記一対の端子金具が、前記ケースの外部に突出した状
態で前記接触面を有するケースの一方の側壁部と対向す
る他方の側壁部の外面に沿うようにそれぞれ折り曲げ加
工が施されて成形されているシャント抵抗器であって、 前記ケースの前記他方の側壁部の内壁面には前記一対の
端子金具に折り曲げ加工が施される際に前記側壁部に加
わる応力に対して前記側壁部を補強する１以上の補強用
リブが設けられていることを特徴とするシャント抵抗
器。1. A shunt resistor body in which a pair of metal terminal fittings are fixed to both ends of a metal resistor, a contact surface contacting the resistor, and a pair of openings for projecting the pair of terminal fittings. And a ceramic case that covers the resistor with a portion, and the other side wall facing the one side wall portion of the case having the contact surface in a state where the pair of terminal fittings protrude outside the case. A shunt resistor that is formed by bending each along the outer surface of the portion, wherein the inner wall surface of the other side wall of the case is bent to the pair of terminal fittings. A shunt resistor provided with at least one reinforcing rib for reinforcing the side wall portion against stress applied to the side wall portion.
れる孔または溝が形成されている請求項１に記載のシャ
ント抵抗器。2. The shunt resistor according to claim 1, wherein the resistor has a hole or a groove into which the reinforcing rib is fitted.
向する前記一方の側壁部の前記接触面と当接する高さ寸
法を有している請求項２に記載のシャント抵抗器。3. The shunt resistor according to claim 2, wherein said reinforcing rib has a height dimension in contact with said contact surface of said one side wall portion facing said other side wall portion.
口部が並ぶ方向に沿って延びる２本以上の補強用リブか
らなり、 前記２本以上の補強用リブは間隔を開けて配置されてい
る請求項２または３に記載のシャント抵抗器。4. The one or more reinforcing ribs include two or more reinforcing ribs extending along a direction in which the pair of openings are arranged, and the two or more reinforcing ribs are arranged at intervals. The shunt resistor according to claim 2 or 3, wherein
定される一対の端子固定部と、前記一対の端子固定部の
対角線上に位置する端部に一端が連結されて他方の端子
固定部に向かって延びる第１の一対の直線部と、前記第
１の一対の直線部の他端から他方の前記直線部に向かっ
て延びる第２の一対の直線部と、前記第２の一対の直線
部の他端どうしを連結する連結部とからなり、 前記第１の一対の直線部と前記連結部との間に形成され
た溝に前記補強用リブがそれぞれ嵌合されることを特徴
とする請求項４に記載のシャント抵抗器。5. The resistor has a pair of terminal fixing portions to which the pair of terminal fittings are fixed, and one end connected to a diagonal end of the pair of terminal fixing portions and the other terminal fixing portion. A first pair of straight portions extending toward the portion, a second pair of straight portions extending from the other end of the first pair of straight portions toward the other straight portion, and the second pair of straight portions. A connecting portion for connecting the other ends of the straight portions, wherein the reinforcing ribs are respectively fitted in grooves formed between the first pair of straight portions and the connecting portion. The shunt resistor according to claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27061699A JP4381523B2 (en) | 1999-09-24 | 1999-09-24 | Shunt resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27061699A JP4381523B2 (en) | 1999-09-24 | 1999-09-24 | Shunt resistor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001093701A true JP2001093701A (en) | 2001-04-06 |
| JP4381523B2 JP4381523B2 (en) | 2009-12-09 |
Family
ID=17488578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27061699A Expired - Lifetime JP4381523B2 (en) | 1999-09-24 | 1999-09-24 | Shunt resistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4381523B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009010082A (en) * | 2007-06-27 | 2009-01-15 | Daikin Ind Ltd | Electronic circuit device |
| US10418157B2 (en) | 2015-10-30 | 2019-09-17 | Vishay Dale Electronics, Llc | Surface mount resistors and methods of manufacturing same |
| US10438729B2 (en) | 2017-11-10 | 2019-10-08 | Vishay Dale Electronics, Llc | Resistor with upper surface heat dissipation |
| CN111418033A (en) * | 2017-11-15 | 2020-07-14 | 新确有限公司 | Shunt resistor |
-
1999
- 1999-09-24 JP JP27061699A patent/JP4381523B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009010082A (en) * | 2007-06-27 | 2009-01-15 | Daikin Ind Ltd | Electronic circuit device |
| US10418157B2 (en) | 2015-10-30 | 2019-09-17 | Vishay Dale Electronics, Llc | Surface mount resistors and methods of manufacturing same |
| US10438729B2 (en) | 2017-11-10 | 2019-10-08 | Vishay Dale Electronics, Llc | Resistor with upper surface heat dissipation |
| CN111418033A (en) * | 2017-11-15 | 2020-07-14 | 新确有限公司 | Shunt resistor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4381523B2 (en) | 2009-12-09 |
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