JP2020089015A - Connection structure of lead wire and terminal block - Google Patents

Connection structure of lead wire and terminal block Download PDF

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Publication number
JP2020089015A
JP2020089015A JP2018218283A JP2018218283A JP2020089015A JP 2020089015 A JP2020089015 A JP 2020089015A JP 2018218283 A JP2018218283 A JP 2018218283A JP 2018218283 A JP2018218283 A JP 2018218283A JP 2020089015 A JP2020089015 A JP 2020089015A
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lead wire
terminal block
electric machine
connection structure
inclined surface
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JP7107186B2 (en
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侍士 藤原
Hitoshi Fujiwara
侍士 藤原
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Abstract

To provide a connection structure of a lead wire and a terminal block, which can connect the lead wire with the terminal block while saving a space as minimizing deformation of the lead wire with low flexibility.SOLUTION: A connection structure of a lead wire and a terminal block is provided with: a case 2A which houses a rotary electric machine; a terminal block 3A arranged in the case 2A; and a stud bolt 4A with which a lead wire 5 penetrating the terminal block 3A and being extended from a motor 1 is connected. The stud bolt 4A is arranged at a position spaced apart from the motor 1 in an axial direction, an apical surface of the stud bolt 4A on a side of the motor 1 becomes an inclined surface 4a, and the lead wire 5 approximately linearly extended from the motor 1 is connected with the inclined surface 4a.SELECTED DRAWING: Figure 1

Description

本発明は、リード線と端子台の接続構造に関する。 The present invention relates to a lead wire and a terminal block connection structure.

従来、モータから延出されるリード線をそのまま外部に引き出す構造ではなく、モータを収納するケースに端子台を取り付け、リード線をケース内部で端子台と接続するようにしたモータの端子構造が知られている（例えば、下記特許文献１等参照）。 Conventionally, there is known a motor terminal structure in which a terminal block is attached to a case that houses the motor and the lead wire is connected to the terminal block inside the case, instead of the structure in which the lead wire extended from the motor is directly drawn to the outside. (See, for example, Patent Document 1 below).

特開２００８−１７５８９号公報JP 2008-17589 A

しかしながら、モータのリード線にケーブルを使用せず、コイルのエナメル線をそのままリード線として使用する場合であって、このリード線の外径が大きく且つリード線がワニス処理により硬化しているような場合には、例えば図４に示すようにリード線１５を曲げることが困難となる。そのため、省スペース化を図ることが難しく、また省スペース化を図ろうとした場合にはリード線を端子台に接続する作業が非常に困難になるという問題があった。なお、図４中、１１はモータ、１２はケース、１３は端子台、１４はスタッドボルト、１６は圧着端子である。 However, when the enameled wire of the coil is used as the lead wire as it is without using the cable for the motor lead wire, the outer diameter of the lead wire is large and the lead wire is hardened by the varnish treatment. In this case, it becomes difficult to bend the lead wire 15 as shown in FIG. 4, for example. Therefore, there is a problem that it is difficult to save space, and when attempting to save space, it is very difficult to connect the lead wire to the terminal block. In FIG. 4, 11 is a motor, 12 is a case, 13 is a terminal block, 14 is a stud bolt, and 16 is a crimp terminal.

このようなことから本発明は、可撓性が低いリード線の変形を最小限に抑えながら、省スペース化を図りつつリード線と端子台を接続することが可能なリード線と端子台の接続構造を提供することを目的とする。 Therefore, the present invention is capable of connecting the lead wire and the terminal block while saving space while minimizing the deformation of the lead wire having low flexibility. It is intended to provide a structure.

上記の課題を解決するための第１の発明に係るリード線と端子台の接続構造は、
回転電機を収納するケースと、
前記ケースに配設された端子台と、
前記端子台を貫通し一端に前記回転電機から延出されるリード線が接続される棒状体と
を備え、
前記棒状体が、前記回転電機の軸方向に対して前記回転電機とは離間した位置に配置され、
前記棒状体の前記回転電機側へ突出した部分の先端が傾斜面となっており、
前記傾斜面に、前記回転電機からほぼ一直線状に延出された前記リード線が接続される
ことを特徴とする。 A connection structure of a lead wire and a terminal block according to the first invention for solving the above problems is
A case that houses the rotating electric machine,
A terminal block arranged in the case,
A rod-shaped body that is connected to a lead wire extending from the rotary electric machine at one end through the terminal block,
The rod-shaped body is arranged at a position separated from the rotating electric machine with respect to the axial direction of the rotating electric machine,
The tip of the portion of the rod-shaped body protruding toward the rotating electric machine is an inclined surface,
The lead wire extending in a substantially straight line from the rotating electric machine is connected to the inclined surface.

また、上記の課題を解決するための第２の発明に係るリード線と端子台の接続構造は、第１の発明において、
前記傾斜面と前記リード線の延出方向とがほぼ平行となっている
ことを特徴とする。 Further, a connection structure of a lead wire and a terminal block according to a second invention for solving the above-mentioned problems is the same as in the first invention,
The inclined surface and the extending direction of the lead wire are substantially parallel to each other.

また、上記の課題を解決するための第３の発明に係るリード線と端子台の接続構造は、第１または第２の発明において、
前記傾斜面が、前記回転電機の軸方向に対し前記回転電機側へ向かうにしたがって、前記棒状体の前記端子台から前記回転電機側へ突出した部分が長尺になるように傾斜している
ことを特徴とする。 Further, a connection structure of a lead wire and a terminal block according to a third aspect of the invention for solving the above-mentioned problems is the first or second aspect of the invention.
The inclined surface is inclined with respect to the axial direction of the rotating electric machine such that a portion of the rod-shaped body projecting from the terminal block to the rotating electric machine side is elongated as it extends toward the rotating electric machine side. Is characterized by.

また、上記の課題を解決するための第４の発明に係るリード線と端子台の接続構造は、第１から第３のいずれか一つの発明において、
前記傾斜面と前記リード線とが、前記リード線の先端に圧着される圧着部と前記傾斜面に着脱可能に接続される接続部とを有する圧着端子を介して接続される
ことを特徴とする。 Further, a connection structure of a lead wire and a terminal block according to a fourth aspect of the invention for solving the above-mentioned problems is any one of the first to third aspects of the invention,
The inclined surface and the lead wire are connected via a crimp terminal having a crimp portion crimped to the tip of the lead wire and a connection portion detachably connected to the inclined surface. ..

また、上記の課題を解決するための第５の発明に係るリード線と端子台の接続構造は、第１から第４のいずれか一つの発明において、
前記端子台が、前記ケースの軸方向一端面に、前記回転電機の軸方向に沿って延びるように配設される
ことを特徴とする。 Further, a connection structure of a lead wire and a terminal block according to a fifth aspect of the invention for solving the above-mentioned problems is the invention according to any one of the first to fourth aspects,
The terminal block is arranged on one axial end surface of the case so as to extend along the axial direction of the rotary electric machine.

本発明に係るリード線と端子台の接続構造によれば、可撓性が低いリード線の変形を最小限に抑えながら、省スペース化を図りつつリード線と端子台を接続することができる。 According to the connection structure of the lead wire and the terminal block according to the present invention, it is possible to connect the lead wire and the terminal block while saving space while minimizing the deformation of the lead wire having low flexibility.

本発明の実施例に係るリード線と端子台の接続構造を模式的に示す部分断面図である。It is a fragmentary sectional view showing typically the connecting structure of the lead wire and the terminal block concerning the example of the present invention. 本発明の比較例１に係るリード線と端子台の接続構造を模式的に示す部分断面図である。It is a fragmentary sectional view showing typically the connecting structure of the lead wire and terminal block concerning the comparative example 1 of the present invention. 本発明の比較例２に係るリード線と端子台の接続構造を模式的に示す部分断面図である。It is a partial cross section figure which shows typically the connection structure of the lead wire and terminal block which concern on the comparative example 2 of this invention. リード線を変形させて端子台と接続する例を模式的に示す部分断面図である。It is a fragmentary sectional view showing typically an example which changes a lead wire and connects with a terminal block.

以下、図面を参照しつつ本発明に係るリード線と端子台の接続構造について説明する。
なお、本発明は以下の実施例に限定されるものではなく、種々の変更が可能であることは言うまでもない。 Hereinafter, a connection structure of a lead wire and a terminal block according to the present invention will be described with reference to the drawings.
Needless to say, the present invention is not limited to the following embodiments and various modifications can be made.

［実施例］
以下、図１を用いて本発明の一実施例に係るリード線と端子台の接続構造の詳細を説明する。 [Example]
Hereinafter, the connection structure of the lead wire and the terminal block according to the embodiment of the present invention will be described in detail with reference to FIG.

図１に示すように、本実施例ではモータ（回転電機）１を収納するケース２Ａに端子台３Ａが取り付けられている。端子台３Ａには導電性を有するスタッドボルト（棒状体）４Ａが固定されており、このスタッドボルト４Ａにモータ１から延出されたリード線５が接続されている。 As shown in FIG. 1, in this embodiment, a terminal block 3A is attached to a case 2A that houses a motor (rotary electric machine) 1. A conductive stud bolt (rod-shaped body) 4A is fixed to the terminal block 3A, and a lead wire 5 extending from the motor 1 is connected to the stud bolt 4A.

より詳しく説明すると、本実施例において端子台３Ａはケース２Ａの一端面からモータ１の軸方向に沿って延びるように配設されている。また、スタッドボルト４Ａは、モータ１の軸方向においてモータ１から離間した位置で、端子台３Ａにほぼ直交するようにこの端子台３Ａを貫通している。 More specifically, in this embodiment, the terminal block 3A is arranged so as to extend from one end surface of the case 2A along the axial direction of the motor 1. The stud bolt 4A penetrates the terminal block 3A so as to be substantially orthogonal to the terminal block 3A at a position separated from the motor 1 in the axial direction of the motor 1.

端子台３Ａを貫通したスタッドボルト４Ａのモータ１側（図示しない回転軸側）の端面は傾斜面（圧着端子接合面）４ａとなっている。ここで、リード線５は、モータ１からほぼ一直線状に延出されており、傾斜面４ａの傾斜角度はこのリード線５の延出方向とほぼ平行となっている。すなわち、本実施例において傾斜面４ａは、モータ１の軸方向に対し、モータ１側に向かうにしたがってスタッドボルト４Ａの端子台３Ａから突出した部分が長尺になるように形成されている。 An end surface of the stud bolt 4A penetrating the terminal block 3A on the motor 1 side (rotating shaft side (not shown)) is an inclined surface (crimping terminal joining surface) 4a. Here, the lead wire 5 extends substantially straight from the motor 1, and the inclination angle of the inclined surface 4 a is substantially parallel to the extending direction of the lead wire 5. That is, in the present embodiment, the inclined surface 4a is formed such that the portion of the stud bolt 4A protruding from the terminal block 3A becomes longer in the axial direction of the motor 1 toward the motor 1 side.

リード線５の先端には、リード線５に圧着される筒状の圧着部６ａと、着脱可能にスタッドボルト４Ａに接続されるリング状の接続部６ｂとを備えた圧着端子６が取り付けられている。リード線５と端子台３Ａとは、圧着端子６の接続部６ｂをスタッドボルト４Ａの傾斜面４ａにネジ止めすることで接続される。 At the tip of the lead wire 5, a crimp terminal 6 having a tubular crimp portion 6a crimped to the lead wire 5 and a ring-shaped connecting portion 6b detachably connected to the stud bolt 4A is attached. There is. The lead wire 5 and the terminal block 3A are connected by screwing the connecting portion 6b of the crimp terminal 6 to the inclined surface 4a of the stud bolt 4A.

このように構成される本実施例に係るリード線と端子台の接続構造によれば、スタッドボルト４Ａのモータ１側の端面にリード線５の延出方向とほぼ平行な傾斜面４ａを設け、この傾斜面４ａにモータ１からほぼ一直線状に延出されたリード線５を接続するようにしたことにより、リード線５の可撓性が低い場合であってもその変形を最小限に抑えながら、省スペース化を図りつつリード線５と端子台３Ａを接続することが可能となる。 According to the connection structure of the lead wire and the terminal block according to the present embodiment configured as described above, the inclined surface 4a substantially parallel to the extending direction of the lead wire 5 is provided on the end surface of the stud bolt 4A on the motor 1 side, By connecting the lead wire 5 extending almost straight from the motor 1 to the inclined surface 4a, the deformation of the lead wire 5 can be minimized even when the flexibility of the lead wire 5 is low. The lead wire 5 and the terminal block 3A can be connected while saving space.

なお、上述した実施例では、スタッドボルト４Ａの傾斜面４ａを、モータ１の軸方向に対し、モータ１側に向かうにしたがってスタッドボルト４Ａの端子台３Ａから突出した部分が長尺になるようにする例を示したが、傾斜面４ａの傾斜方向及び傾斜角度は本実施例に限定されるものではなく、リード線５の延出方向とほぼ平行であって、リード線５を極力変形させることなくこのリード線５（圧着端子６の接続部６ｂ）を接続させることができれば他の傾斜方向及び傾斜角度であってもよい。 In addition, in the above-described embodiment, the inclined surface 4a of the stud bolt 4A is configured such that the portion of the stud bolt 4A protruding from the terminal block 3A becomes longer toward the motor 1 side with respect to the axial direction of the motor 1. However, the inclination direction and the inclination angle of the inclined surface 4a are not limited to those in the present embodiment, and are substantially parallel to the extending direction of the lead wire 5 so that the lead wire 5 is deformed as much as possible. If the lead wire 5 (the connecting portion 6b of the crimp terminal 6) can be connected without any other direction, another inclination direction and inclination angle may be used.

［比較例１］
なお、上述した実施例に対し、図２に示すような構成とすることも考えられる。
すなわち、モータ１を収納するケース２Ｂの軸方向の長さを実施例に比較して短尺にし、端子台３Ａに固定されるスタッドボルト４Ｂがモータ１の軸方向端部に対向するように構成するとともに、端子台３Ａを貫通したスタッドボルト４Ｂのモータ１側に突出した部分に段部を形成する。そして、リード線５をモータ１からスタッドボルト４Ｂへ向けてほぼ一直線状に延出させ、圧着端子６の接続部６ｂをスタッドボルト４Ｂの段部にネジ止めすることによりリード線５とスタッドボルト４Ｂとを接続する。
その他の構成については実施例と同様とし、同一の作用を奏する部材には同一の符号を付し、重複する説明は省略する。 [Comparative Example 1]
It should be noted that a configuration as shown in FIG. 2 may be considered in addition to the above-described embodiment.
That is, the case 2B for housing the motor 1 has a shorter axial length as compared with the embodiment, and the stud bolt 4B fixed to the terminal block 3A is arranged to face the axial end of the motor 1. At the same time, a step portion is formed at a portion of the stud bolt 4B penetrating the terminal block 3A and protruding toward the motor 1 side. Then, the lead wire 5 is extended substantially straight from the motor 1 toward the stud bolt 4B, and the connecting portion 6b of the crimp terminal 6 is screwed to the step portion of the stud bolt 4B to thereby fix the lead wire 5 and the stud bolt 4B. And connect.
The rest of the configuration is the same as that of the embodiment, members having the same functions are designated by the same reference numerals, and a duplicate description will be omitted.

このような構成とすれば、上述した実施例と同様に、リード線５を極力変形させることなく、リード線５を端子台３Ａに接続することが可能となる。ただし、図２中に破線で囲んで示すように、本比較例では上述した実施例に比較してケース２Ｂの軸方向の長さが短尺になるため、モータ１の冷却性が低下する可能性がある。 With such a configuration, it becomes possible to connect the lead wire 5 to the terminal block 3A without deforming the lead wire 5 as much as possible, as in the above-described embodiment. However, as indicated by a broken line in FIG. 2, the axial length of the case 2B in the present comparative example is shorter than that in the above-described embodiment, so that the cooling performance of the motor 1 may deteriorate. There is.

［比較例２］
また、上述した実施例に対し、図３に示すような構成とすることも考えられる。
すなわち、スタッドボルト４Ｃの軸方向がリード線５のモータ１からの延出方向とほぼ一致するように、上述した実施例に比較してケース２Ｃの外径を拡大するとともにケース２Ｃの軸方向一端側の長さを長尺にし、かつ端子台３Ｃを傾斜させる。また、スタッドボルト４Ｃのモータ１側に突出した部分に段部を形成する。そして、リード線５をモータ１からスタッドボルト４Ｃへ向けてほぼ一直線状に延出させ、圧着端子６の接続部６ｂをスタッドボルト４Ｃの段部にネジ止めすることによりリード線５とスタッドボルト４Ｃとを接続する。
その他の構成については実施例と同様とし、同一の作用を奏する部材には同一の符号を付し、重複する説明は省略する。 [Comparative example 2]
Further, it is also possible to adopt a configuration as shown in FIG. 3 with respect to the above-described embodiment.
That is, the outer diameter of the case 2C is enlarged as compared with the above-described embodiment so that the axial direction of the stud bolt 4C substantially coincides with the extending direction of the lead wire 5 from the motor 1, and one end of the case 2C in the axial direction is enlarged. The length of the side is made long and the terminal block 3C is inclined. Further, a step portion is formed on the portion of the stud bolt 4C protruding toward the motor 1 side. Then, the lead wire 5 is extended substantially straight from the motor 1 toward the stud bolt 4C, and the connecting portion 6b of the crimp terminal 6 is screwed to the step portion of the stud bolt 4C to thereby fix the lead wire 5 and the stud bolt 4C. And connect.
The rest of the configuration is the same as that of the embodiment, and members having the same functions are designated by the same reference numerals, and overlapping description will be omitted.

このような構成とすれば、上述した実施例と同様に、リード線５を極力変形させることなく、リード線５を端子台３Ｃに接続することが可能となる。ただし、本比較例では上述した実施例に比較してケース２Ｃの外径が拡大するとともにケース２Ｃの軸方向の長さが長尺になるため、図３中に破線で囲んで示すように、ケース２Ｃ及び端子台３Ｃを含む機器の最大外形寸法は大きくなる。 With such a configuration, it is possible to connect the lead wire 5 to the terminal block 3C without deforming the lead wire 5 as much as possible, as in the above-described embodiment. However, in this comparative example, since the outer diameter of the case 2C is larger and the axial length of the case 2C is longer than that of the above-described embodiment, as shown by a broken line in FIG. The maximum external dimension of the device including the case 2C and the terminal block 3C becomes large.

すなわち、上述した実施例に係るリード線と端子台の接続構造によれば、比較例１，２に対し、モータ１の冷却性能や最大外形寸法を維持しつつ、リード線５の可撓性が低い場合であってもその変形を最小限に抑えながらリード線５を端子台３Ａに接続することができる。 That is, according to the connection structure of the lead wire and the terminal block according to the above-described embodiment, the flexibility of the lead wire 5 is maintained while maintaining the cooling performance and the maximum outer dimension of the motor 1 as compared with Comparative Examples 1 and 2. Even if it is low, the lead wire 5 can be connected to the terminal block 3A while suppressing its deformation to a minimum.

１ モータ
２Ａ，２Ｂ，２Ｃ ケース
３Ａ，３Ｃ 端子台
４Ａ，４Ｂ，４Ｃ スタッドボルト
４ａ 傾斜面
５ リード線
６ 圧着端子
６ａ 圧着部
６ｂ 接続部 1 Motor 2A, 2B, 2C Case 3A, 3C Terminal block 4A, 4B, 4C Stud bolt 4a Inclined surface 5 Lead wire 6 Crimp terminal 6a Crimp part 6b Connection part

Claims (5)

回転電機を収納するケースと、
前記ケースに配設された端子台と、
前記端子台を貫通し一端に前記回転電機から延出されるリード線が接続される棒状体と
を備え、
前記棒状体が、前記回転電機の軸方向に対して前記回転電機とは離間した位置に配置され、
前記棒状体の前記回転電機側へ突出した部分の先端が傾斜面となっており、
前記傾斜面に、前記回転電機からほぼ一直線状に延出された前記リード線が接続される
ことを特徴とするリード線と端子台の接続構造。 A case that houses the rotating electric machine,
A terminal block arranged in the case,
A rod-shaped body that is connected to a lead wire extending from the rotary electric machine at one end through the terminal block,
The rod-shaped body is arranged at a position separated from the rotating electric machine with respect to the axial direction of the rotating electric machine,
The tip of the portion of the rod-shaped body protruding toward the rotating electric machine is an inclined surface,
The lead wire-terminal block connection structure, wherein the lead wire extending from the rotary electric machine in a substantially straight line shape is connected to the inclined surface. 前記傾斜面と前記リード線の延出方向とがほぼ平行となっている
ことを特徴とする請求項１記載のリード線と端子台の接続構造。 The connection structure of a lead wire and a terminal block according to claim 1, wherein the inclined surface and the extending direction of the lead wire are substantially parallel to each other. 前記傾斜面が、前記回転電機の軸方向に対し前記回転電機側へ向かうにしたがって、前記棒状体の前記端子台から前記回転電機側へ突出した部分が長尺になるように傾斜している
ことを特徴とする請求項１または請求項２記載のリード線と端子台の接続構造。 The inclined surface is inclined with respect to the axial direction of the rotating electric machine such that a portion of the rod-shaped body projecting from the terminal block to the rotating electric machine side is elongated as it extends toward the rotating electric machine side. The connection structure between a lead wire and a terminal block according to claim 1 or 2. 前記傾斜面と前記リード線とが、前記リード線の先端に圧着される圧着部と前記傾斜面に着脱可能に接続される接続部とを有する圧着端子を介して接続される
ことを特徴とする請求項１から請求項３のいずれか一項に記載のリード線と端子台の接続構造。 The inclined surface and the lead wire are connected via a crimp terminal having a crimp portion crimped to the tip of the lead wire and a connection portion detachably connected to the inclined surface. The connection structure for a lead wire and a terminal block according to any one of claims 1 to 3. 前記端子台が、前記ケースの軸方向一端面に、前記回転電機の軸方向に沿って延びるように配設される
ことを特徴とする請求項１から請求項４のいずれか一項に記載のリード線と端子台の接続構造。 The said terminal block is arrange|positioned so that it may extend along the axial direction of the said rotary electric machine at the axial direction one end surface of the said case, The any one of the Claims 1-4 characterized by the above-mentioned. Connection structure of lead wire and terminal block.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008017589A (en) * 2006-07-05 2008-01-24 Meidensha Corp Terminal structure of motor
JP2012170172A (en) * 2011-02-10 2012-09-06 Toyota Motor Corp Inverter integral driving device
JP2014121174A (en) * 2012-12-17 2014-06-30 Suzuki Motor Corp Peripheral structure of terminal stage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008017589A (en) * 2006-07-05 2008-01-24 Meidensha Corp Terminal structure of motor
JP2012170172A (en) * 2011-02-10 2012-09-06 Toyota Motor Corp Inverter integral driving device
JP2014121174A (en) * 2012-12-17 2014-06-30 Suzuki Motor Corp Peripheral structure of terminal stage

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