JPS60185380A - Plug-in type terminal - Google Patents
Plug-in type terminalInfo
- Publication number
- JPS60185380A JPS60185380A JP3850284A JP3850284A JPS60185380A JP S60185380 A JPS60185380 A JP S60185380A JP 3850284 A JP3850284 A JP 3850284A JP 3850284 A JP3850284 A JP 3850284A JP S60185380 A JPS60185380 A JP S60185380A
- Authority
- JP
- Japan
- Prior art keywords
- plug
- terminal
- input terminal
- contact
- opening
- 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.)
- Pending
Links
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、冷蔵庫等の電動圧縮機の外殻に設けた円柱状
の入力端子に直結して用いる差込式端子の改良に係り、
特に挿入作業性が良好で接触信頼の高い差込式端子に関
する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an improvement of a plug-in terminal that is directly connected to a cylindrical input terminal provided on the outer shell of an electric compressor such as a refrigerator.
In particular, it relates to a plug-in terminal with good insertion workability and high contact reliability.
〔従来技術〕 −
従来の差込式端子を第1図〜第6図により説明する。1
は電動圧縮機であり、2は該電動圧縮機1の外殻1aに
設けた入力端子である。3は前記入力端子2と結合する
ための差込式端子である。[Prior Art] - A conventional plug-in terminal will be explained with reference to FIGS. 1 to 6. 1
is an electric compressor, and 2 is an input terminal provided on the outer shell 1a of the electric compressor 1. 3 is a plug-in terminal for coupling with the input terminal 2.
前記差込式端子3には、両端部をハ字状に折曲した略三
角形状の開口部3aが設けられ、かつ、この開口部3a
の内面には入力端子2の外形寸法より広い間隔の漏斗状
の案内部3a+ と、入力端子2の外形寸法より狭い間
隔の直線状の接触部3atが形成されている。また、接
触部3axの一端部には、前記開口部3aと直角方向に
折曲した電線4を接続する電線接続部3bが設けられて
いる。The plug-in terminal 3 is provided with a substantially triangular opening 3a with both ends bent into a V-shape, and this opening 3a
On the inner surface of the input terminal 2, a funnel-shaped guide portion 3a+ having a wider interval than the outer dimension of the input terminal 2 and a linear contact portion 3at having a narrower interval than the outer dimension of the input terminal 2 are formed. Furthermore, a wire connecting portion 3b is provided at one end of the contact portion 3ax to connect the wire 4 bent at right angles to the opening 3a.
5は前記差込式端子3の漏斗状の案内部3a+側に開口
穴5aを有する絶縁ケースである。Reference numeral 5 denotes an insulating case having an opening hole 5a on the funnel-shaped guide portion 3a+ side of the plug-in terminal 3.
かかる構成の差込式端子3を入力端子2に結合するには
、絶縁ケース5の開口穴5a側から入力端子2を挿入し
、入力端子2の先端2aが差込式端子3の漏斗状の案内
部3a+を押し広げた後、絶縁ケ・−ス5の−L面5h
に当接するまで差し込めは良い。In order to connect the plug-in terminal 3 with such a configuration to the input terminal 2, insert the input terminal 2 from the opening hole 5a side of the insulating case 5 so that the tip 2a of the input terminal 2 is connected to the funnel-shaped plug-in terminal 3. After pushing out the guide part 3a+, -L side 5h of the insulating case 5
It is okay to insert it until it touches the .
上述の差込式端子3に於いて、接触開始点で(J入力端
子2の先端2aか第4図に示す如く漏斗状の案内部3a
+ と直線状の接触部3axを結ぶ曲面3am と接触
し、接触終止点では入力端子2の側面2bが第5図に示
す如く直線状の接触部3a■と接触する。一般に開[1
部3a全長りに占める有効接触長L Hは、開I]rG
II 3 a全長■・の1/3程度に設定された漏斗状
の案内部3a+ と、プレス加工技術上の制限から差込
式端子3の板厚以下とすることが不可能である曲面3a
Iとにより、]/2程反が限界であった。In the above-mentioned plug-in terminal 3, at the contact start point (the tip 2a of the J input terminal 2 or the funnel-shaped guide part 3a as shown in FIG.
+ and a curved surface 3am connecting the linear contact portion 3ax, and at the end of the contact, the side surface 2b of the input terminal 2 contacts the linear contact portion 3a, as shown in FIG. Generally open [1
The effective contact length LH that occupies the entire length of the portion 3a is open I]rG
II 3 A funnel-shaped guide portion 3a+ set to approximately 1/3 of the total length of a, and a curved surface 3a that cannot be made smaller than the plate thickness of the plug-in terminal 3 due to limitations in press processing technology.
According to I, the limit was about 2/2.
この様に接触面積の小さな部分に電動圧縮機1の大きな
起動電流や運転電流を通電すると、電流密度が大きく温
度−に昇が高くなる欠点があった。When a large starting current or operating current of the electric compressor 1 is applied to a portion with a small contact area as described above, there is a drawback that the current density is large and the temperature rise becomes high.
特に、電動圧縮機1の運転、停止時の振動、衝撃等によ
る差込式端子3の接触圧力の減少分を見込まず使用する
と、接触圧力の減少→接触抵抗の増加→温度」二昇の増
加→熱なまけ発生−→接触圧力の減少の繰り返しによっ
て異常発熱から焼損に至る致命的欠陥があった。In particular, if the electric compressor 1 is used without taking into account the decrease in contact pressure of the plug-in terminal 3 due to vibrations, shocks, etc. when it is running or stopped, the contact pressure will decrease → contact resistance will increase → temperature will increase. → Occurrence of thermal lag - → Repeated decrease in contact pressure caused a fatal defect that led to abnormal heat generation and burnout.
これらの対策として、初期接触圧力を大きくする方法や
、銀めっきを施すなどによって接触信頼性を高める方法
が案出されていたが、前者では挿入作業性が著しく低下
し、後者では高価になる欠点かあった。As a countermeasure to these problems, methods have been devised to increase the initial contact pressure and to increase contact reliability by applying silver plating, but the former method significantly reduces insertion workability, and the latter method has the disadvantage of being expensive. There was.
また、漏斗状の案内部3a+が外側に広げられているた
め、差込式端子3同志の絶縁距離が小さくなると共に、
これらを収納する絶縁ケース5が大きくなる欠点があっ
た。In addition, since the funnel-shaped guide portion 3a+ is expanded outward, the insulation distance between the plug-in terminals 3 becomes smaller, and
There is a drawback that the insulating case 5 that houses these items becomes large.
尚、前記差込式端子3から漏斗状の案内部3 alを除
去すると、第6図に示す如(入力端子2の先端2aか差
込式端子3の開口部3aの端面と当接し、差し込み不能
となることは周知の通りである。Note that when the funnel-shaped guide portion 3 al is removed from the plug-in terminal 3, as shown in FIG. It is well known that this is impossible.
本発明の1」的は、挿入作業性に優れ、接触面積が大き
く接触信頼性の高い差込式端子を簡単、かつ、安価に提
供することにある。An object of the present invention is to simply and inexpensively provide a plug-in terminal that has excellent insertion workability, a large contact area, and high contact reliability.
即ち、差込式端子の開口部の端面中央部対向位置に入力
端子の直径寸法より小さな一対のV字状切り込み部を設
け、このV字状切り込み部を入力端子挿入時の案内とす
ることにより上記欠点を除去せんとしたものである。That is, by providing a pair of V-shaped notches smaller than the diameter of the input terminal at opposing positions in the center of the end face of the opening of the plug-in terminal, and using these V-shaped notches as a guide when inserting the input terminal. This is an attempt to eliminate the above drawbacks.
以下、本発明の一実施例を第7図〜第11図により説明
する。図に於いて従来と同一符号は同一物を示す。従来
と異なる点は、差込式端子3の入力端子2と接する開口
部3aの端面3C中央部対向位置に入力端子2の直径よ
り小さな幅で板厚より深い一対のV字状切り込み部3g
<を設けたことである。An embodiment of the present invention will be described below with reference to FIGS. 7 to 11. In the figures, the same reference numerals as in the prior art indicate the same parts. The difference from the conventional one is that a pair of V-shaped notches 3g with a width smaller than the diameter of the input terminal 2 and deeper than the board thickness are provided at opposing positions in the center of the end surface 3C of the opening 3a that contacts the input terminal 2 of the plug-in terminal 3.
< is provided.
かかる構成の差込式端子3を入力端子2に結合するには
、絶縁ケース5の開口穴5a側から入力端子2を挿入し
、入力端子2の先端2aが差込式端子3の一対の切り込
み部3 a4を押し広げた後、絶縁ケース5の上面5b
に当接するまで差し込めば良い。In order to connect the plug-in terminal 3 with such a configuration to the input terminal 2, insert the input terminal 2 from the opening hole 5a side of the insulating case 5, so that the tip 2a of the input terminal 2 is connected to the pair of notches in the plug-in terminal 3. After spreading part 3 a4, the upper surface 5b of the insulating case 5
Just insert it until it touches the .
上述の差込式端子3に於いて、第8図の接触開始点では
入力端子2の先端2aが第9図に示す如くV字状切り込
み部3a<の傾斜面x、yと接触を開始し、接触終止点
では入力端子2の側面2bが第10図に示す如(直線状
の接触部3a!と接触する。In the above-mentioned plug-in terminal 3, at the contact start point in FIG. 8, the tip 2a of the input terminal 2 starts contacting the inclined surfaces x and y of the V-shaped notch 3a, as shown in FIG. , at the contact end point, the side surface 2b of the input terminal 2 comes into contact with the linear contact portion 3a! as shown in FIG.
この時、差込式端子3を自在に位置変化する様に配置し
て置けば、第11図に示す如く差込式端子3と入力端子
2の先端2aに位置ズレがあってもV字状切り込み部3
a4の作用効果によって、第11図fA)、(B)に示
す如く入力端子2の先端2aとV字状切り込み部3a4
の一方の傾斜面が接触した時点を過ぎたところから地方
のV字状切り込み部3aaが引き寄せられ、ついには第
11図(0)に示す如(両方のV字状切り込み部3ai
の傾斜面と接触する様に位置ズレが修正される。At this time, if the plug-in terminal 3 is arranged so that its position can be changed freely, even if there is a positional shift between the plug-in terminal 3 and the tip 2a of the input terminal 2, it will form a V-shaped shape, as shown in FIG. Notch part 3
Due to the effect of a4, the tip 2a of the input terminal 2 and the V-shaped notch 3a4 as shown in FIG.
The local V-shaped notches 3aa are pulled together after the point where one of the inclined surfaces of the
The positional deviation is corrected so that it comes into contact with the inclined surface of.
また、入力端子2と差込式端子3の有効接触長L!は、
V字状切り込み部384を除く部分となる。このV字状
切り込み部3a4長L2は、入力端子2の挿入作業性、
即ち位置ズレ修正率から決まるV字状切り込み部3a4
の幅寸法Wとその時の修正時の挿入抵抗から決まる深さ
寸法Hから成る。幅寸法Wは入力端子2の直径の2/3
以下、深さ寸法は板厚の1.5倍量−Lにすれば良い。Also, the effective contact length L between input terminal 2 and plug-in terminal 3! teeth,
This is the portion excluding the V-shaped cut portion 384. The length L2 of this V-shaped notch 3a4 improves the workability of inserting the input terminal 2.
In other words, the V-shaped notch 3a4 is determined based on the positional deviation correction rate.
It consists of a width dimension W and a depth dimension H determined from the insertion resistance at the time of correction. Width dimension W is 2/3 of the diameter of input terminal 2
Hereinafter, the depth may be set to 1.5 times the plate thickness -L.
よって、本発明の差込式端子3では、開口部3a全長■
、の5/6程度を有効接触長り、とすることができる。Therefore, in the plug-in terminal 3 of the present invention, the entire length of the opening 3a is
The effective contact length can be approximately 5/6 of .
従って、従来品と同等の作業性を有したまま、従来品と
比較し接触面積が約1.7倍と増加し、その分だけ電流
密度が減少し温度」−昇を低くすることができる。その
結果、接触圧力が多少低下しても安定した接触状態が維
持できるので接触信頼性を大幅に向−Lできる効果があ
る。Therefore, while maintaining the same workability as the conventional product, the contact area is increased to about 1.7 times compared to the conventional product, the current density is reduced by that amount, and the temperature rise can be lowered. As a result, a stable contact state can be maintained even if the contact pressure decreases to some extent, which has the effect of significantly improving contact reliability.
また、初期接触圧力を下げることも可能でありその分だ
け挿入作業性の向上が図れる効果かある。It is also possible to lower the initial contact pressure, which has the effect of improving insertion workability.
その上、差込式端子3の外形寸法を小さくすることがで
き、差込式端子3同志の絶縁距離が拡大し、かつ、絶縁
ケース5の外形寸法を小さくすることができるので絶縁
性に優れ、小形で安価なものが得られる効果がある。Furthermore, the external dimensions of the plug-in terminal 3 can be reduced, the insulation distance between the plug-in terminals 3 can be expanded, and the external dimensions of the insulating case 5 can be reduced, resulting in excellent insulation. This has the effect of producing a small and inexpensive product.
尚、本発明品と従来品の材質、板厚が同一条件で比較し
た温度上昇試験結果を示すと表1の通りである。Table 1 shows the results of a temperature rise test comparing the product of the present invention and the conventional product under the same material and thickness conditions.
表 1
第12図は本発明の差込式端子を複数個用いて無接点起
動装置とした他の応用例を示すものである。本差込式端
子3は電線接続部3bをタブ端子としたものであり、本
発明は電線接続部3bの形状に何等左右されることなく
得られる効果がある。Table 1 FIG. 12 shows another application example of a non-contact starting device using a plurality of plug-in terminals of the present invention. The present plug-in terminal 3 has the electric wire connecting portion 3b as a tab terminal, and the present invention has an effect that can be obtained regardless of the shape of the electric wire connecting portion 3b.
本発明によれば、接触信頼性の向上はもとより挿入作業
性、絶縁性に優れた差込式端子を小形で安価に提供でき
る効果がある。According to the present invention, it is possible to provide a compact and inexpensive plug-in terminal that not only improves contact reliability but also has excellent insertion workability and insulation properties.
その上、従来の基本構造を大きく変えることなく得られ
るのでその実用的効果に大なるものがある。Moreover, since it can be obtained without greatly changing the conventional basic structure, it has great practical effects.
第1図は従来および本発明の差込式端子の取(−=J構
造を示す分解斜視図、第2図は第1図の側断面図、第3
図は従来の差込式端子の拡大斜視図、第4図、第5図は
第2図の挿入状態を示す要部説明断面図、第6図は従来
の差込式端子から漏斗状の案内部を除去した場合の不具
合発生時の挿入状態を示す要部説明断面図、第7図は本
発明の差込式端子の要部拡大斜視図、第8図、第10図
は第7図の挿入状態を示す要部説明断面図、第9図は第
8図の要部説明斜視図、第11図は第8図に至る接触状
態の変化を説明する動作説明図、第12図は本発明の応
用例を示す分解斜視図である。
1・・・電動圧縮機、1a・・・外殻、2・・・入力端
子、2a・・・先端、2b・・・側面、3・・・差込式
端子、3a・・・開口部、3 a4・・・V字状切り込
み部、3c・・・端面。
Y1図
茎 2 図
事 3 旧
)
a−1
≠キロ
3a、1ど5(L
寥6 図
6
\
F′7図
第8 図
V、q 圀
fIQ 図
Sシ
¥:11図
3の4
oL4Figure 1 is an exploded perspective view showing the conventional and present invention plug-in terminals (-=J structure; Figure 2 is a side sectional view of Figure 1;
The figure is an enlarged perspective view of a conventional plug-in terminal, Figures 4 and 5 are sectional views showing the main parts of the insertion state shown in Figure 2, and Figure 6 is a funnel-shaped guide from a conventional plug-in terminal. FIG. 7 is an enlarged perspective view of the main parts of the plug-in terminal of the present invention, and FIGS. 8 and 10 are the same as those shown in FIG. 7. 9 is a perspective view illustrating the main parts of FIG. 8, FIG. 11 is an operation explanatory diagram illustrating changes in the contact state leading to FIG. 8, and FIG. 12 is a diagram illustrating the present invention. FIG. DESCRIPTION OF SYMBOLS 1... Electric compressor, 1a... Outer shell, 2... Input terminal, 2a... Tip, 2b... Side surface, 3... Plug-in terminal, 3a... Opening, 3 a4...V-shaped notch, 3c... end surface. Y1 figure stem 2 figure 3 old) a-1 ≠ km3a, 1do5 (L 寥6 figure 6 \ F'7 figure 8 figure V, q 圀fIQ figure S ¥: 11 figure 3-4 oL4
Claims (1)
)を形成し、この開口部(3a)の内面に設けた直線状
の接触:11(3a*)と策動圧縮機(1)の外殻(1
a)に設けた円柱状の入力端子(2)の側面(2b)を
嵌合接触させた差込式端子において、前記開口部(3a
)の端面(3c)の中央部対向位置に入力端子(2)の
直径寸法より小さな一対のV字状切り込み部(3a4
)を設け、このV字状切り込み部(3a4 )を入力端
子(2)の先端(2a)挿入時の案内としたことを特徴
とする差込式端子。Bend both ends into a figure eight shape to create a roughly triangular opening (3a
) and a linear contact provided on the inner surface of this opening (3a): 11 (3a*) and the outer shell (1) of the maneuvering compressor (1).
In the plug-in terminal in which the side surface (2b) of the cylindrical input terminal (2) provided in (a) is brought into fitting contact, the opening (3a
) A pair of V-shaped notches (3a4
), and this V-shaped notch (3a4) serves as a guide when inserting the tip (2a) of the input terminal (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3850284A JPS60185380A (en) | 1984-03-02 | 1984-03-02 | Plug-in type terminal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3850284A JPS60185380A (en) | 1984-03-02 | 1984-03-02 | Plug-in type terminal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60185380A true JPS60185380A (en) | 1985-09-20 |
Family
ID=12527041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3850284A Pending JPS60185380A (en) | 1984-03-02 | 1984-03-02 | Plug-in type terminal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60185380A (en) |
-
1984
- 1984-03-02 JP JP3850284A patent/JPS60185380A/en active Pending
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