JP2010238465A - Connector for wrapping terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for a wrapping terminal capable of easily attaching/detaching a jumper wire to/from a block terminal without preparing a dedicated wrapping tool and capable of preventing a short-circuit due to the jumper wire caught on a body by preventing the jumper wire from being projected from the tip of the wrapping terminal after fitting the jumper wire. <P>SOLUTION: In this connector for a wrapping terminal, a cylindrical terminal cover for insertion of a terminal, in which a connecting fitting for connecting a jumper wire is housed, and a cylindrical protective cover for housing the jumper wire connected to the connecting fitting, are arranged in parallel. The terminal cover has an opening for insertion of the terminal in a base end thereof, and a connecting end integrally formed with the connecting fitting is projected from the tip thereof. Further, the connecting fitting includes a plate spring-like terminal pinching part curved inside the terminal cover. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wrapping terminal connector for connecting jumper wires to wrapping terminals arranged at high density on a block terminal block.

  Conventionally, in order to connect the jumper wire J to the wrapping terminal L, first, as shown in FIGS. 7 (a) and 7 (b), the covering portion S of the jumper wire J is peeled off by a wire stripper T, and a predetermined length is obtained. The core wire R is exposed.

  Then, the core wire R is wound around the wrapping terminal L by using a lapping tool Q dedicated to winding the core wire of the jumper wire J as shown in FIG.

  As shown in FIGS. 8 and 9, the lapping tool Q includes a handle 101 on the proximal end side of the rod 100, and a winding portion 102 is provided at the distal end portion. As shown in FIG. 9, the winding portion 102 has a hole 103 for inserting the wrapping terminal L at the center of the tip, and a fan-shaped notch 104 is formed at a part of the peripheral portion of the hole 103. Is formed.

  A long concave groove 105 is formed from the periphery of the notch 104 along the longitudinal direction of the side surface of the rod 100, and a part of the concave groove 105 on the tip end side of the rod 100 is covered with the cylindrical cover 106. And as shown in FIG. 9, the edge part of the groove 105 in the rod 100 front end side forms the predetermined groove groove hole 105a.

  When connecting the jumper wire J to the wrapping terminal L using this wrapping tool Q, first, in order to avoid contact with other wrapping terminals L around the wrapping terminal L to be connected during work, The wrapping terminal L is covered with insulating rubber or the like.

  Then, as shown in FIG. 11 (a), the covering portion S of the jumper wire J is placed in the concave groove 105 inside the cylindrical cover 106 from the concave groove hole 105a located at the tip of the rod 100 of the lapping tool Q. The stripped core wire R is inserted, and the wrapping terminal L is inserted into the hole 103 as shown in FIG. Next, as shown in FIG. 10 and FIG. 11C, the rod 100 itself is pulled out while rotating the rod 100 through the handle 101.

  At this time, while holding the covering portion S of the jumper wire J with one hand, as shown in FIG. 12A, a part of the core wire R inserted into the groove groove 105 and protruding from the groove groove hole 105a is removed. To the wrapping terminal L.

  Then, as shown in FIG. 12 (b), the rod 100 is rotated via the handle 101 to wind the core wire R around the wrapping terminal L. Further, as shown in FIGS. 10 and 12 (c), when the rod 100 is pulled out from the wrapping terminal L simultaneously with the rotation of the rod 100, as shown in FIGS. The core wire R inserted in 105 is gradually pulled out, and the core wire R is spiraled one after another and wound around the wrapping terminal L.

  Further, as a conventional connector for wrapping terminals, a soldering type connector P as shown in FIG. 13 is used.

  This is because two rectangular tube-like cover bodies 200a and 200b are linearly connected, and one cover body 200a accommodates a bifurcated terminal clamping portion 6 which is curved toward the inside of the connection fitting 2. In the other cover body 200b, a strip-shaped connection end 4 integral with the connection fitting 2 is accommodated. The jumper wire J is inserted through the hole 201 formed at the end of the other cover body 200b, and the core wire R obtained by peeling off the covering portion S of the jumper wire J is soldered to the connection end 4 of the connection fitting 2. Has been.

  14 and 15, when one cover body 200 a is inserted into the wrapping terminal L, the wrapping terminal L is fixed by the terminal clamping portion 6 of the connection fitting 2, and the connection end of the connection fitting 2 is connected. 4 is connected to the core wire R soldered to 4.

  In addition, conventionally, as disclosed in Patent Document 1, the shape of the conductive terminal that connects the post and the wiring material erected on the printed wiring board is reduced to a small diameter near the center. A cylindrical post wiring connection terminal exists.

  In this post wiring connection terminal, a wiring material is wound around a small-diameter portion formed near the center of the post wiring connection terminal, and then this terminal is engaged with a post erected on a printed wiring board. By pressing the terminal with a connecting jig while inserting the post into the hole of the tool, the terminal is plastically deformed and the post and the wiring material are pressure-bonded.

  In addition, as disclosed in Patent Document 2, there is a wrapping cable connector. In this wrapping cable connector, the fixing member that fixes the device-side wrapping terminal is fixed to the device side, and the connecting member that fixes the connection-side wrapping terminal is detachably attached to the fixing member so as to face the device. The device side contact portion of the side wrapping terminal and the connection side contact portion of the connection side wrapping terminal are in contact with each other, so that the wrapping cable can be wound around the connection side wrapping terminal with good workability, and It can be done safely.

JP-A-7-65877 JP-A-11-54179

  However, conventionally, since the core wire R is wound around the wrapping terminal L using the wrapping tool Q dedicated to winding the core wire of the jumper wire, the operation of connecting the jumper wire J to the wrapping terminal L is very troublesome. .

  Moreover, without such a lapping tool Q, it is not easy to attach a jumper wire to the lapping terminal, and without an unwrapper tool, it is not easy to remove the jumper wire from the terminal.

  Further, before this connection work, the covered portion of the jumper wire is stripped in advance with a wire stripper to expose the core wire to a predetermined length, but there is a risk of damaging the core wire during this work.

  In addition, the wrapping terminal connector disclosed in Patent Document 1 cannot be reliably connected to the connector without a soldering tool. Moreover, since the jumper wire is inserted through the hole formed at the end of the other cover body, and the core wire of the jumper wire is soldered to the connection end of the connection fitting, the one cover body is wrapped with a terminal. Since the jumper wire protrudes greatly from the upper end portion of the other cover body when inserted into the cover body, the connection connector may be pulled out by hooking the jumper wire on the body.

  Further, in the post wiring connection terminal disclosed in Patent Document 1, a wiring material is wound around a small diameter portion formed near the center of the post wiring connection terminal, and the post is inserted into the hole of the connection jig with the connection jig. By pressing the terminal, the terminal is plastically deformed and the post and the wiring material are pressure-bonded. Without a connecting jig, it is not easy to attach a jumper wire to the wrapping terminal. When the terminal is plastically deformed by the tool, the wrapping terminal may be broken.

  Furthermore, in the wrapping cable connector disclosed in Patent Document 2, the device side abutting portion of the device side wrapping terminal and the connection side abutting portion of the connection side wrapping terminal are brought into contact with each other, so that the connection side Since the wrapping cable is wound around the wrapping terminal, the operation of connecting the jumper wire to the wrapping terminal is very troublesome. Moreover, even in such a case, it is not easy to attach the jumper wire to the wrapping terminal without the wrapping tool, and it is not easy to remove the jumper wire from the terminal without the unwrapper tool.

  Therefore, the present invention was created in view of the existing circumstances as described above, and it is easy to attach and remove the jumper wire to the block terminal without preparing a dedicated lapping tool. It is an object of the present invention to provide a connector for connecting a wrapping terminal capable of preventing a jumper wire from jumping out from the tip of the wrapping terminal and preventing a short circuit due to the jumper wire being hooked on the body.

  A connector for connecting wrapping terminals according to the present invention includes a cylindrical terminal cover for inserting a terminal in which a connection fitting for connecting a jumper wire is accommodated, and a cylinder for accommodating a jumper wire connected to the connection fitting. The problem mentioned above was solved by arranging the protective covers in parallel.

  Further, the terminal cover has an opening for inserting a terminal at the base end, and the connection end integral with the connection fitting protrudes at the tip, thereby solving the above-described problem.

  Furthermore, the connection fitting has a leaf spring-like terminal clamping portion that is curved in the terminal cover, thereby solving the above-described problem.

  Moreover, the connection metal fitting was provided with the bifurcated terminal clamping part which curves toward the inside mutually within the terminal cover, and solved the same problem as described above.

  In addition, the connection end is formed by a substantially V-shaped edge groove portion so that only the covering portion is cut and only the core wire is sandwiched by inserting a jumper wire, so that the above-mentioned problem is also achieved. Settled.

  In addition, the jumper wire is inserted from the proximal end side of the protective cover, protrudes toward the distal end side, and is connected to a connection fitting (connection end) protruding toward the distal end side of the terminal cover, thereby solving the above-mentioned problem. .

  According to the present invention, the jumper wire can be easily attached to and removed from the block terminal without preparing a dedicated lapping tool, and the jumper wire does not protrude from the tip of the wrapping terminal after being installed, It is possible to prevent a short circuit due to the jumper wire being hooked on the body.

  That is, in the present invention, a cylindrical terminal cover for inserting a terminal in which a connection fitting for connecting a jumper wire is accommodated, and a cylindrical protective cover for accommodating the jumper wire connected to the connection fitting. Since the jumper wires are accommodated by the protective cover after the terminal cover is attached to the wrapping terminal, the jumper wires do not protrude from the tip of the wrapping terminal.

  Therefore, it is possible to prevent a short circuit due to the jumper wire being hooked on the body. In addition, the jumper wire can be easily attached to and removed from the block terminal without preparing a dedicated lapping tool.

  In addition, the terminal cover has an opening for terminal insertion at the base end, and the connection end integral with the connection fitting protrudes at the tip, so that it is possible to reliably prevent a short circuit between the connection end and other metals. Can do.

  Furthermore, since the connection fitting has a leaf spring-like terminal clamping portion curved in the terminal cover, the wrapping terminal is held by an appropriate pressure of the terminal clamping portion, and the terminal cover itself is detached from the wrapping terminal. Can be prevented from occurring. Therefore, the connection state between the wrapping terminal and the jumper wire can be always maintained.

  In addition, since the connection fitting includes a bifurcated terminal holding portion that is curved inward in the terminal cover, the wrapping terminal is held by an appropriate pressure from both sides of the terminal holding portion. The terminal cover itself can be prevented from coming off from the wrapping terminal, whereby the connection state between the wrapping terminal and the jumper wire can be always maintained.

  In addition, since the connection end is formed by a substantially V-shaped edge groove portion so that only the covering portion is cut and only the core wire is sandwiched by inserting a jumper wire, The troublesome work of stripping the jacketed portion of the jumper wire with the stripper and exposing the core wire to a predetermined length is no longer required, and the core wire of the jumper wire can be securely connected to the connection fitting (connection end) with one touch. . In addition, since the wire stripper is not used, the core wire is not damaged.

  In addition, the jumper wire is inserted from the base end side of the protective cover, protrudes toward the tip end, and is connected to a connection fitting (connection end) protruding toward the tip end side of the terminal cover. Therefore, the terminal cover is inserted into the wrapping terminal. When worn, the jumper wire does not protrude greatly from the tip of the wrapping terminal, and a short circuit due to the jumper wire being caught on the body can be prevented.

  In addition, the jumper wire is inserted from the base end side of the protective cover, and the jumper wire provided with the covering portion is located on the base end side of the wrapping terminal. It is possible to prevent a short circuit due to hooking.

  In addition, there is no need to perform a short circuit prevention operation when the adjacent terminal is connected. Specifically, in order to prevent contact with other wrapping terminals around the wrapping terminal to be connected during the work, short-circuit prevention work such as covering neighboring wrapping terminals with insulating rubber, etc. Is unnecessary.

It is a perspective view which shows an example of use of a connection connector. It is a perspective view of the connection connector before inserting in a wrapping terminal. It is a perspective view of the connection connector inserted in the wrapping terminal. The specific structure of the connection connector is shown. (A) is a side view showing the overall structure of the connection fitting, (b) is a plan view of the connection connector in use, and (c) is XX in (b). It is sectional drawing. The use state of a connection connector is shown, (a) is a side view, (b) is a front view, (c) is a rear view. It shows a state in which a jumper wire is connected to the connection end of the connection fitting. (A) is a perspective view showing a state before the jumper wire is inserted into the edge groove portion of the connection end, and (b) is a jumper wire connected to the connection end. It is a perspective view which shows the state after inserting in an edge groove part. The usage example of the conventional wire stripper is shown, (a) is a perspective view of the state just before stripping off the coating | coated part of a jumper wire, (b) is a perspective view of the state which exposed the core wire. It is a perspective view which shows the whole structure of the conventional lapping tool. It is a perspective view which shows the front-end | tip structure of the conventional lapping tool. It is a perspective view which shows the usage example of the conventional lapping tool. The example of use of the conventional lapping tool is shown, (a) is a perspective view showing a state immediately before being attached to the lapping terminal, (b) is a perspective view showing a state immediately after being attached to the lapping terminal, (c) is It is a perspective view of the state where the core wire of the jumper wire is wound around the wrapping terminal by pulling out while turning the wrapping tool. Explaining the operation of the wrapping part of the conventional lapping tool, (a) is a perspective view of a state in which the core wire inserted in the groove groove is locked to one end wall surface along the circumference of the notch part, (B) is a perspective view of a state where the core wire is wound around the wrapping terminal while rotating the rod by one end wall surface of the notch, and (c) is that the rod is pulled out of the wrapping terminal simultaneously with the rotation of the rod, It is a perspective view of a state in which the core wire is spiraled one after another and wound around the wrapping terminal. It is a perspective view which shows the conventional connector for lapping terminals. It is a side view of the state which mounted | wore the wrapping terminal with the conventional connector for wrapping terminals. It is a perspective view which shows the use condition of the connection connector for conventional wrapping terminals.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  The connection connector P for wrapping terminals according to the present invention is used for connecting the jumper wire J to the wrapping terminals L arranged at high density on the block terminal block W.

  As shown in FIGS. 1 to 3, the wrapping terminal connection connector P is accommodated in a rectangular tube-shaped terminal cover 1 made of an electrically insulating material for inserting the wrapping terminal L, and the terminal cover 1. The connection fitting 2 having electrical conductivity and a rectangular tube-shaped protective cover 3 made of an electrically insulating material for accommodating the jumper wire J connected to the connection fitting 2 are generally configured. The terminal cover 1 and the protective cover 3 are arranged in parallel with each other.

  2 and 3, the base end of the terminal cover 1 has a rectangular opening 7 for inserting a rectangular bar-shaped wrapping terminal L. 2 and the connection end 4 integral with 2 are arranged so as to protrude.

  Further, as shown in FIGS. 4A and 4C, the connection fitting 2 includes a bifurcated terminal holding portion 6 that is curved toward the inside in the terminal cover 1.

  As shown in FIG. 4B, the connection fitting 2 includes a plate-like connection end 4 having a substantially V-shaped edge groove portion 5 in which the edge width interval gradually decreases from the front end center to the rear, and the connection end. 4 and a terminal pinching portion 6 extending in a lateral L shape from the rear edge portion.

  At this time, the terminal clamping portion 6 is formed in a leaf spring shape with a curved central portion, and a locking piece portion 9 that is folded at a right angle on the opposite side to the bending direction is provided at the rear end portion. Yes.

  Then, as shown in FIG. 4 (a), the back surfaces of the connection ends 4 of the two connection fittings 2 are matched with each other, and then the opening of the terminal cover 1 is opened as shown in FIGS. 4 (b) and 4 (c). Between the pair of left and right plate bag-shaped guide portions 8a and 8b that are inserted into the inside of the portion 7 and project from the tip of the terminal cover 1, the connecting end 4 that is overlapped with each other is inserted, and at the same time the terminal is clamped The locking piece 9 at the rear end of the portion 6 is locked to the opening 7 of the terminal cover 1.

  As a result, the edge groove portion 5 is arranged on one end side of the terminal cover 1 with the V-shaped open side facing outward, and the terminal clamping portions 6 are opposed to each other in the terminal cover 1 in a state of being curved toward each other. To be arranged.

  Further, as shown in FIGS. 6A and 6B, the edge groove portion 5 at the connection end 4 of the connection fitting 2 has a covering portion S (insulating outer skin: Only the core wire R is sandwiched without being damaged, so that the connection fitting 2 and the jumper wire J are electrically connected.

  Instead of using the two connection fittings 2 so as to match each other, only one connection fitting 2 may be used.

  On the other hand, the protective cover 3 is formed in a rectangular tube shape slightly shorter than the length of the terminal cover 1 as shown in FIGS. And the front-end opening part 3a of the protective cover 3 and the front-end part in which the connection end 4 of the terminal cover 1 is arrange | positioned are made to correspond. As a result, a slight space is formed on the side of the base end opening 3b of the protective cover 3, and the jumper wire J can be easily inserted therefrom.

  Further, when the jumper wire J is inserted from the base end opening 3b side of the protective cover 3, the jumper wire J provided with the covering portion is positioned on the base end side of the wrapping terminal L.

  Next, an example of use of the connection connector P for wrapping terminals configured as described above will be described.

  First, after the jumper wire J is inserted into the base end opening 3b of the protective cover 3 and pulled out from the tip opening 3a on the opposite side, the tip of the jumper wire J is shown in FIGS. The side is inserted into the edge groove 5 at the connection end 4 of the connection fitting 2.

  At this time, only the covering portion S (insulating outer sheath: sheath) of the jumper wire J is cut by the edge groove portion 5, and only the core wire R is sandwiched between the edge groove portions 5 without being damaged. Thus, the connection fitting 2 and the jumper wire J are electrically connected.

  Then, as shown in FIGS. 2 and 3, the wrapping terminal L is inserted into the opening 7 of the terminal cover 1. At this time, the wrapping terminal L is held by an appropriate pressure from both sides of the terminal clamping portion 6 in the terminal cover 1, and the wrapping terminal L is electrically connected to the jumper wire J through the connection fitting 2. Become.

  The present invention can be widely used as a connector for various terminal conduction, in addition to being used as a wrapping terminal connection connector for connecting jumper wires to wrapping terminals arranged at high density on a block terminal block. it can.

L ... Wrapping terminal J ... Jumper wire R ... Core wire S ... Covering part P ... Connection connector Q ... Wrapping tool T ... Wire stripper W ... Block terminal block

DESCRIPTION OF SYMBOLS 1 ... Terminal cover 2 ... Connection metal fitting 3 ... Protective cover 3a ... End opening part 3b ... Base end opening part 4 ... Connection end 5 ... Edge groove part 6 ... Terminal clamping part 7 ... Opening part 8a ... Guide part 8b ... Guide part 9 ... Locking piece portion 100 ... Rod 101 ... Handle 102 ... Entrainment portion 103 ... Hole portion 104 ... Notch portion 105 ... Concave groove 105a ... Concave groove hole 106 ... Cylindrical cover 200a ... Cover body 200b ... Cover body 201 ... Hole portion

Claims (6)

  A cylindrical terminal cover for inserting a terminal in which a connection fitting for connecting a jumper wire is accommodated, and a cylindrical protective cover for accommodating a jumper wire connected to the connection fitting are arranged in parallel. A connector for wrapping terminals.   The wrapping terminal connection connector according to claim 1, wherein the terminal cover has a terminal insertion opening at the base end, and a connection end integral with the connection fitting protrudes from the tip end.   The connection connector for a wrapping terminal according to claim 1 or 2, wherein the connection fitting includes a leaf spring-like terminal clamping portion curved in the terminal cover.   The connection connector for a wrapping terminal according to claim 1 or 2, wherein the connection fitting includes a bifurcated terminal holding portion that is curved inward toward each other in the terminal cover.   The connection end is formed by a substantially V-shaped edge groove portion so that only a covering portion is cut and only a core wire is sandwiched by inserting a jumper wire. Connector for wrapping terminals.   The wrapping according to any one of claims 1 to 5, wherein the jumper wire is inserted from the proximal end side of the protective cover, protrudes toward the distal end side, and is connected to a connection fitting (connection end) protruding toward the distal end side of the terminal cover. Connector for terminals.

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