JP3792464B2

JP3792464B2 - Terminal block

Info

Publication number: JP3792464B2
Application number: JP35385299A
Authority: JP
Inventors: 智上原
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1999-12-14
Filing date: 1999-12-14
Publication date: 2006-07-05
Anticipated expiration: 2019-12-14
Also published as: JP2001167819A

Description

【０００１】
【発明の属する技術分野】
この発明は、照明器具等に用いる電源端子台等の端子台に関するものである。
【０００２】
【従来の技術】
従来例（実開平２−１３６９７４号）を図７に示す。すなわち、この端子台は、器具側の速結／圧接端子５０と電源側の速結端子５１および送り側の速結端子５２のいずれか遠い側とを直線的に電路部５３により連結した端子５５、５６を有する。端子５５はさらにヒューズ素子５４をかしめ接続している。これらの速結端子５５、５６を樹脂ボディ５７と樹脂カバー５８からなるケースの収納部５９内に収納している。６０はアース端子、６１はその収納部、６２は電線挿入孔、６３は解錠穴、６４は圧接用電線挿通部、６５は電線挿入孔６２に整合する電線挿通孔である。
【０００３】
【発明が解決しようとする課題】
樹脂ボディ５７の収納部５９に端子５５、５６を挿入するときに樹脂ボディ５７および端子５５、５６の寸法のばらつきにより端子５５、５６の挿入がきつくなったり、経年変化による樹脂収縮により樹脂ボディ５７の一部に亀裂が入る欠点があった。
【０００４】
したがって、この発明の目的は、ケースと速結端子がばらついても速結端子の挿入がきつくならず、経年変化による樹脂収縮にも対応することができる端子台を提供することである。
【０００５】
【課題を解決するための手段】
請求項１記載の端子台は、第１の連結部を有する第１の端子部と、前記第１の連結部に対向する第２の連結部を有する第２の端子部と、前記第１の連結部と前記第２の連結部を連結する伸縮可能な電路部と、前記第１の端子部および前記第２の端子部を収納する収納部を有するケースとを備え、
前記第１の連結部と前記第２の連結部と前記電路部を一枚の導電板で形成し、前記電路部は前記第１の連結部の板幅と前記第２の連結部の板幅よりも細幅で前記板幅内で斜めに連結するように打ち抜き加工することにより、前記第１の連結部と前記第２の連結部を対向方向に対して細幅で斜めに一体に連結した端子台において、
前記電路部の両端を前記第１の端子部および前記第２の端子部で切断分離したときの切断部位を避けて、前記第１の端子部および前記第２の端子部間に、細幅で蛇行状をなすヒューズ素子の両端を接続したものである。
【０００６】
請求項１記載の端子台によれば、電路部が伸縮可能であるため、端子部およびケースのばらつきにより端子部の挿入がきつくなることがなく、経年変化による樹脂収縮にも対応でき、ケースの亀裂が生じることもなくばらつきに対応しやすなる。また対向方向に平行な電路と比べて電路部が長くなり表面積および体積が大きくとれるため、放熱効果が増し端子部の温度上昇を少なくすることができる。
また電路部をヒューズ素子としたため、ヒューズ素子と端子を共用して使用することができる。第１の端子部と第２の端子部間にヒューズ素子の両端を接続したため、第１の端子部および第２の端子部を分断したときのばりによって振動等のときにヒューズ素子に傷を付けてヒューズ素子が早切れする等の悪影響がなくなる。
【０００９】
請求項２記載の端子台は、請求項１において、前記第１の端子部が電源端子部および送り端子部を有し、前記第２の端子部は器具用端子部であり、前記電路部は前記電源端子部と前記送り端子部のうち前記第２の端子部より遠いものと前記第２の端子部とを連結するものである。
【００１０】
請求項２記載の端子台によれば、請求項１と同様な効果のほか、電路部の距離を長くできる。
【００１５】
【発明の実施の形態】
この発明の第１の実施の形態を図１から図４により説明する。すなわち、この電源端子台は、第１の端子部１と、第２の端子部２と、電路部３と、ケース４を有する。
【００１６】
第１の端子部１は第１の連結部５を有する。実施の形態では第１の端子部１が電源端子部６と送り端子部７からなり、これらがそれぞれ半円筒状の側片３３、これに対向する鎖錠片９および押圧片３４からなる速結端子により構成され、電線１１を側片３３に挿入し、鎖錠片９で抜止めするとともに鎖錠片９と押圧片３４で側片３３に押付けている。３５は鎖錠片９に設けた解錠片である。
【００１７】
第２の端子部２は第１の連結部５に対向する第２の連結部８を有する。実施の形態では第２の端子部２が器具用端子部であり、第１の端子部１の電線挿入方向が図１で垂直下方であるのに対して水平方向となり、互いに電線挿入方向が約９０度異なる速結端子により構成されている。第２の端子部２の鎖錠片９は導電板をＬ字形に折曲した片方の一片３８に一対を切起こしにより形成し、他片３９と鎖錠片９との間に電線１１′を挿通し鎖錠片９の先端で抜止め係止する。
【００１８】
電路部３は伸縮可能であり、第１の連結部５と前記第２の連結部８を連結している。実施の形態では電源端子部６と送り端子部７のうち第２の端子部２より遠いものすなわち電源端子部６と第２の端子部２とを第１の連結部５と第２の連結部８の対向方向に対して細幅で斜めに一体に連結し、伸縮性を出すとともに電路長を長くしている。また第１の端子部１および第２の端子部２は一枚の導電板を打ち抜き加工により所定の形状に打ち抜き、さらに所定の曲げ加工により第１の端子部、第２の端子部を形成し、電路部３は打ち抜き加工により斜め姿勢に形成している。
【００１９】
ケース４は第１の端子部１および第２の端子部２を収納する収納部１０を有する。実施の形態では樹脂ボディ１３と、樹脂カバー１４からなる。樹脂ボディ１３は、第１の端子部１および第２の端子部２を収納部１０に収納するとともに、速結端子により形成したアース用端子板１５を収納部１０ａに収納している。このアース用端子板１５は下縁がアース端子１６の上縁と接触する。樹脂ボディ１３において、１８は第２の端子部２のための電線挿入孔、１９は係止爪、２０は取付爪である。また樹脂カバー１４において、２１は第１の端子部１のための電線挿入孔、２１′はアース用端子板１５のための電線挿入孔、２２、２２′は解錠穴、２３は電線挿入孔１８に整合する電線挿通孔、２４は係止爪１９に係止する係止孔である。
【００２０】
２６は金属製の取付板であり、２７は取付爪２０が係止する角穴、２８はアース端子１６が係止する孔、２９は樹脂ボディ１３を固定するための取付ねじを挿通する穴、３０は樹脂ボディ１３に形成した位置決め突起（図示せず）が嵌合する穴である。
【００２１】
第１の実施の形態によれば、電路部３が斜めになることにより、対向方向に多少の伸縮性が生じるので端子部１、２およびケース４のばらつきにより端子部１、２の挿入がきつくなることがなく、経年変化による樹脂収縮にも対応でき、ケース４の亀裂が生じることもなくばらつきに対応しやすい。また対向方向に平行なものと比べて電路部３が長くなり表面積および体積が大きくとれるため放熱効果が増し端子部１、２の温度上昇を少なくすることができる。
【００２２】
この発明の第２の実施の形態を図５により説明する。すなわち、この端子台は、電路部３の斜め配置の方向が第１の実施の形態と逆の場合であり、第１の連結部５側が第１の実施の形態では図４のように電源端子部６に近い位置にあるのに対して、図５のよう電源端子部６から離れて図４と反対向きに傾いて延びている。この結果、第１の実施の形態では、第１の端子部１と第２の端子部２との間の距離が図４ではｂ₁＝３．８５、ｂ₂＝３．３０、ｂ₃＝６．６４、ｂ₄＝７．４８、ｂ₅＝０．５０であり、合計２１．７７であるのに対して、図５ではａ₁＝４．９５、ａ₂＝３．３０、ａ₃＝６．４９、ａ₄＝７．３４、ａ₅＝０．５０であり、合計２２．５８である。その他は、第１の実施の形態と同様である。
【００２３】
この発明の第３の実施の形態を図６により説明する。すなわち、この端子台は、第１の実施の形態において、電路部３の両端をヒューズ素子４０としている。実施の形態ではヒューズ素子４０が細幅で蛇行状をなし、第１の端子部１および第２の端子部２を分離するための切断部位を避けて第１の端子部１および第２の端子部２間に両端を接続している。これは例えば第１の実施の形態の電路部３に代えてヒューズ素子４０を連結する場合、第１の端子部１および第２の端子部２に対して若干残してすなわち出っ張り部３ａ、３ｂを置いて第１の実施の形態の電路部３を切断し、かつ電路部３の切断部位を避けて第１の端子部１および第２の端子部２間に細幅のヒューズ素子４０の両端４０ａ、４０ｂを例えばかしめ部４１により接続している。これは、第１の実施の形態の電路部３の形成後にその電路部３を切断するため、どうしても出っ張り部３ａ、３ｂを残さざるを得ず、そのためばりがでるが、出っ張り部３ａ、３ｂを避けてヒューズ素子４０を接続することにより影響を回避できる。
【００２４】
このように、ヒューズ素子４０と端子部１、２を共用して使用することができ、また例えば第１の実施の形態の電路部を分断したときのばりによって振動等のときにヒューズ素子に傷を付けてヒューズ素子が早切れする等の悪影響がない。その他は第１の実施の形態と同様である。
【００２５】
【発明の効果】
請求項１記載の端子台によれば、電路部が伸縮可能であるため、端子部およびケースのばらつきにより端子部の挿入がきつくなることがなく、経年変化による樹脂収縮にも対応でき、ケースの亀裂が生じることもなくばらつきに対応しやすなる。また対向方向に平行な電路と比べて電路部が長くなり表面積および体積が大きくとれるため、放熱効果が増し端子部の温度上昇を少なくすることができる。
また電路部をヒューズ素子としたため、ヒューズ素子と端子を共用して使用することができる。第１の端子部と第２の端子部間にヒューズ素子の両端を接続したため、第１の端子部および第２の端子部を分断したときのばりによって振動等のときにヒューズ素子に傷を付けてヒューズ素子が早切れする等の悪影響がなくなる。
【００２７】
請求項２記載の端子台によれば、請求項１と同様な効果のほか、電路部の距離を長くできる。
【図面の簡単な説明】
【図１】この発明の第１の実施の形態の端子台の分解斜視図である。
【図２】カバーを外した状態の平面図である。
【図３】その断面図である。
【図４】速結端子の平面図である。
【図５】第２の実施の形態の速結端子の平面図である。
【図６】第３の実施の形態の速結端子の平面図である。
【図７】従来例の分解斜視図である。
【符号の説明】
１第１の端子部
２第２の端子部
３電路部
３ａ、３ｂ出っ張り部
４ケース
５第１の連結部
６電源端子部
７送り端子部
８第２の連結部
１０収納部
４０ヒューズ素子[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal block such as a power supply terminal block used for a lighting fixture or the like.
[0002]
[Prior art]
A conventional example (Japanese Utility Model Laid-Open No. 2-136974) is shown in FIG. That is, this terminal block is a terminal 55 in which the fast connection / pressure connection terminal 50 on the instrument side and the fast connection terminal 51 on the power source side and the fast connection terminal 52 on the feed side are linearly connected by the electric circuit portion 53. , 56. The terminal 55 is further caulked with a fuse element 54. These quick connection terminals 55 and 56 are housed in a housing portion 59 of a case composed of a resin body 57 and a resin cover 58. Reference numeral 60 denotes a ground terminal, 61 denotes a storage portion thereof, 62 denotes an electric wire insertion hole, 63 denotes an unlocking hole, 64 denotes a pressure welding electric wire insertion portion, and 65 denotes an electric wire insertion hole aligned with the electric wire insertion hole 62.
[0003]
[Problems to be solved by the invention]
When the terminals 55 and 56 are inserted into the housing portion 59 of the resin body 57, the insertion of the terminals 55 and 56 becomes difficult due to variations in the dimensions of the resin body 57 and the terminals 55 and 56, or the resin body 57 due to resin shrinkage due to secular change. There was a defect that some of the cracks.
[0004]
Therefore, an object of the present invention is to provide a terminal block that does not tightly insert the quick connection terminal even if the case and the quick connection terminal vary, and can cope with resin shrinkage due to secular change.
[0005]
[Means for Solving the Problems]
The terminal block according to claim 1 is a first terminal portion having a first connecting portion, a second terminal portion having a second connecting portion facing the first connecting portion, and the first terminal portion. A retractable electrical path portion for connecting the connecting portion and the second connecting portion; and a case having a storage portion for storing the first terminal portion and the second terminal portion.
The first connecting part, the second connecting part, and the electric circuit part are formed by a single conductive plate, and the electric circuit part has a plate width of the first connecting part and a plate width of the second connecting part. The first connecting portion and the second connecting portion are integrally connected to each other in a narrow and narrow direction with respect to the opposing direction by punching so as to be obliquely connected within the plate width . In the terminal block ,
Avoid the cutting site when the both ends of the electric circuit portion are cut and separated by the first terminal portion and the second terminal portion, and between the first terminal portion and the second terminal portion, a narrow width The both ends of the meandering fuse element are connected .
[0006]
According to the terminal block of claim 1, since the electric circuit portion can be expanded and contracted, insertion of the terminal portion does not become difficult due to variations in the terminal portion and the case, and it can cope with resin shrinkage due to secular change, It becomes easy to cope with variations without causing cracks. In addition, since the electric circuit portion becomes longer and the surface area and volume can be increased as compared with the electric circuit parallel to the opposing direction, the heat dissipation effect is increased and the temperature rise of the terminal portion can be reduced.
Further, since the electric circuit portion is a fuse element, the fuse element and the terminal can be used in common. Since both ends of the fuse element are connected between the first terminal portion and the second terminal portion, the fuse element is scratched in the event of vibration or the like due to a flash when the first terminal portion and the second terminal portion are divided. This eliminates adverse effects such as premature blowout of the fuse element .
[0009]
The terminal block according to claim 2 is the terminal block according to claim 1 , wherein the first terminal portion includes a power supply terminal portion and a feed terminal portion, the second terminal portion is a terminal portion for an instrument, and the electric path portion is Of the power supply terminal portion and the feed terminal portion, a portion farther than the second terminal portion is connected to the second terminal portion.
[0010]
According to the terminal block of the second aspect , in addition to the same effect as the first aspect , the distance of the electric circuit portion can be increased.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to FIGS. That is, the power terminal block includes a first terminal portion 1, a second terminal portion 2, an electric circuit portion 3, and a case 4.
[0016]
The first terminal portion 1 has a first connecting portion 5. In the embodiment, the first terminal portion 1 is composed of a power terminal portion 6 and a feed terminal portion 7, which are each composed of a semi-cylindrical side piece 33, a locking piece 9 and a pressing piece 34 facing each other. The electric wire 11 is inserted into the side piece 33 and is secured with the locking piece 9 and pressed against the side piece 33 with the locking piece 9 and the pressing piece 34. Reference numeral 35 denotes an unlocking piece provided on the locking piece 9.
[0017]
The second terminal portion 2 has a second connecting portion 8 that faces the first connecting portion 5. In the embodiment, the second terminal portion 2 is an instrument terminal portion, and the electric wire insertion direction of the first terminal portion 1 is a horizontal direction with respect to the vertical downward direction in FIG. It is composed of quick connection terminals that differ by 90 degrees. The locking piece 9 of the second terminal portion 2 is formed by cutting and raising a pair on one piece 38 obtained by bending the conductive plate into an L shape, and an electric wire 11 ′ is connected between the other piece 39 and the locking piece 9. At the tip of the insertion lock piece 9, it is retained and locked.
[0018]
The electric circuit part 3 is extendable and contracts, and connects the first connecting part 5 and the second connecting part 8. In the embodiment, the power terminal portion 6 and the feed terminal portion 7 which are farther from the second terminal portion 2, that is, the power terminal portion 6 and the second terminal portion 2 are connected to the first connecting portion 5 and the second connecting portion. 8 are connected to each other in a slanted and slanted manner with respect to the opposing direction, thereby providing stretchability and increasing the length of the electric circuit. The first terminal portion 1 and the second terminal portion 2 are formed by punching one conductive plate into a predetermined shape by punching, and further forming a first terminal portion and a second terminal portion by predetermined bending. The electric circuit portion 3 is formed in an oblique posture by punching.
[0019]
The case 4 has a storage portion 10 that stores the first terminal portion 1 and the second terminal portion 2. In the embodiment, it comprises a resin body 13 and a resin cover 14. The resin body 13 stores the first terminal portion 1 and the second terminal portion 2 in the storage portion 10 and also stores the grounding terminal plate 15 formed by the quick connection terminals in the storage portion 10a. The lower edge of the ground terminal plate 15 is in contact with the upper edge of the ground terminal 16. In the resin body 13, 18 is an electric wire insertion hole for the second terminal portion 2, 19 is a locking claw, and 20 is an attachment claw. In the resin cover 14, 21 is a wire insertion hole for the first terminal portion 1, 21 ′ is a wire insertion hole for the ground terminal plate 15, 22 and 22 ′ are unlocking holes, and 23 is a wire insertion hole. An electric wire insertion hole 24 that matches 18, and a locking hole 24 that is locked to the locking claw 19.
[0020]
26 is a metal mounting plate, 27 is a square hole in which the mounting claw 20 is locked, 28 is a hole in which the ground terminal 16 is locked, 29 is a hole through which a mounting screw for fixing the resin body 13 is inserted, Reference numeral 30 denotes a hole into which a positioning protrusion (not shown) formed on the resin body 13 is fitted.
[0021]
According to the first embodiment, since the electric circuit portion 3 is inclined, some elasticity is generated in the facing direction, so that the insertion of the terminal portions 1 and 2 is difficult due to variations in the terminal portions 1 and 2 and the case 4. Therefore, it is possible to cope with resin shrinkage due to secular change, and it is easy to cope with variations without causing cracks in the case 4. Moreover, since the electric circuit part 3 becomes long and the surface area and the volume can be increased as compared with those parallel to the opposing direction, the heat dissipation effect is increased and the temperature rise of the terminal parts 1 and 2 can be reduced.
[0022]
A second embodiment of the present invention will be described with reference to FIG. That is, this terminal block is a case where the direction of the diagonal arrangement of the electric circuit portion 3 is opposite to that of the first embodiment, and the first connecting portion 5 side is the power supply terminal in the first embodiment as shown in FIG. In contrast to the position close to the portion 6, it extends away from the power supply terminal portion 6 as shown in FIG. As a result, in the first embodiment, the distance between the first terminal portion 1 and the second terminal portion 2 is b ₁ = 3.85, b ₂ = 3.30, and b ₃ = in FIG. 6.64, b ₄ = 7.48, b ₅ = 0.50, which is 21.77 in total, whereas in FIG. 5, a ₁ = 4.95, a ₂ = 3.30, a ₃ = 6.49, a ₄ = 7.34, a ₅ = 0.50, for a total of 22.58. Others are the same as those in the first embodiment.
[0023]
A third embodiment of the present invention will be described with reference to FIG. That is, this terminal block uses the fuse element 40 at both ends of the electric circuit section 3 in the first embodiment. In the embodiment, the fuse element 40 has a narrow and meandering shape, and avoids a cutting site for separating the first terminal portion 1 and the second terminal portion 2, so that the first terminal portion 1 and the second terminal Both ends are connected between the parts 2. For example, when the fuse element 40 is connected instead of the electric circuit portion 3 of the first embodiment, the protruding portions 3a and 3b are left slightly with respect to the first terminal portion 1 and the second terminal portion 2, that is, Then, the electric circuit section 3 of the first embodiment is cut, and both ends 40a of the narrow fuse element 40 are interposed between the first terminal section 1 and the second terminal section 2 while avoiding the cutting portion of the electric circuit section 3. 40b are connected by a caulking portion 41, for example. This is because, since the electric circuit section 3 is cut after the formation of the electric circuit section 3 of the first embodiment, the protruding portions 3a and 3b are inevitably left, and thus the bulging is generated, but the protruding portions 3a and 3b are The influence can be avoided by avoiding the connection of the fuse element 40.
[0024]
In this way, the fuse element 40 and the terminal portions 1 and 2 can be used in common, and the fuse element is damaged when it vibrates due to, for example, a flash when the electric circuit portion of the first embodiment is divided. There is no adverse effect such as premature fuse failure. Others are the same as in the first embodiment.
[0025]
【The invention's effect】
According to the terminal block of claim 1, since the electric circuit portion can be expanded and contracted, insertion of the terminal portion does not become difficult due to variations in the terminal portion and the case, and it can cope with resin shrinkage due to secular change, It becomes easy to cope with variations without causing cracks. Further, since the electric circuit portion becomes longer and the surface area and the volume can be increased as compared with the electric circuit parallel to the opposing direction, the heat dissipation effect is increased and the temperature rise of the terminal portion can be reduced.
Moreover, since the electric circuit portion is a fuse element, the fuse element and the terminal can be used in common. Since both ends of the fuse element are connected between the first terminal portion and the second terminal portion, the fuse element is scratched in the event of vibration or the like due to a flash when the first terminal portion and the second terminal portion are divided. This eliminates adverse effects such as premature blowout of the fuse element .
[0027]
According to the terminal block of the second aspect , in addition to the same effect as that of the first aspect , the distance of the electric circuit portion can be increased.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a terminal block according to a first embodiment of the present invention.
FIG. 2 is a plan view with a cover removed.
FIG. 3 is a cross-sectional view thereof.
FIG. 4 is a plan view of a quick connection terminal.
FIG. 5 is a plan view of a quick connection terminal according to the second embodiment;
FIG. 6 is a plan view of a quick connection terminal according to a third embodiment.
FIG. 7 is an exploded perspective view of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 1st terminal part 2 2nd terminal part 3 Electric circuit part 3a, 3b Protruding part 4 Case 5 1st connection part 6 Power supply terminal part 7 Feeding terminal part 8 2nd connection part 10 Storage part 40 Fuse element

Claims

A first terminal portion having a first connecting portion; a second terminal portion having a second connecting portion facing the first connecting portion; the first connecting portion and the second connecting portion; And a case having a storage portion for storing the first terminal portion and the second terminal portion.
The first connecting part, the second connecting part, and the electric circuit part are formed by a single conductive plate, and the electric circuit part has a plate width of the first connecting part and a plate width of the second connecting part. The first connecting portion and the second connecting portion are integrally connected to each other in a narrow and narrow direction with respect to the opposing direction by punching so as to be obliquely connected within the plate width . In the terminal block ,
Avoid the cutting site when the both ends of the electric circuit portion are cut and separated by the first terminal portion and the second terminal portion, and between the first terminal portion and the second terminal portion, a narrow width A terminal block that connects both ends of a serpentine fuse element .

The first terminal portion includes a power supply terminal portion and a feed terminal portion, the second terminal portion is a terminal portion for an appliance, and the electrical path portion is the second of the power supply terminal portion and the feed terminal portion. The terminal block of Claim 1 which connects the thing far from the terminal part of said and the said 2nd terminal part.