JP2015099693A - Connecting terminal - Google Patents

Abstract

Provided is a connection terminal capable of improving the insertion property of a flat conductor and reducing the work time of terminal connection.
A connecting terminal is electrically connected to a flat conductor, and includes a substantially U-shaped plate member into which the flat conductor is inserted in the width direction W, and And a conduction portion 20 provided extending from one flat surface portion 11 of the U-shaped plate material 10. In addition, the conduction portion 20 has a positioning portion 22 that protrudes toward the side where the flat conductor 101 is inserted on the U-shaped plate material 10 side.
[Selection] Figure 1

Description

  The present invention relates to a connection terminal.

  Conventionally, a litz wire formed by collecting a plurality of insulated conductors having a conductor and an insulating film provided on the outer periphery of the conductor is known. According to this litz wire, it is possible to suppress an increase in AC resistance due to the skin effect in which the current concentrates on the conductor surface as the frequency of the current flowing through the conductor increases (see Patent Document 1). For this reason, a litz wire is used suitably for the coil part of the non-contact electric power feeding system which charges a vehicle battery by the electromagnetic induction effect | action of the coil on the ground side and the coil provided in the vehicle, for example.

JP 2013-125599 A

  Here, it is desirable that the coil unit of the non-contact power feeding system is thin particularly on the vehicle side in terms of installation space. For this reason, even if the litz wire is formed in a flat shape, the crimping part of the terminal connected to the litz wire is formed in a round shape or the like in accordance with the round litz wire. When a terminal is connected to a flat litz wire, it is necessary to insert a flat litz wire into the round crimping portion, resulting in an increase in working time. Therefore, for the purpose of improving the insertability, a method of previously crushing the crimping part of the terminal into a flat shape is conceivable. I will invite you.

  In addition, this subject is a problem common not only when connecting a terminal with respect to the electric wire which has not only a litz wire but a flat type conductor.

  The present invention solves such problems, and an object of the present invention is to provide a connection terminal capable of improving the insertion property of a flat conductor and reducing the work time of terminal connection. There is to do.

  The connection terminal of the present invention is a connection terminal that is electrically connected to a flat conductor, and is a substantially U-shaped plate member into which the flat conductor is inserted in the width direction, and the substantially U-character. And a conducting portion provided extending from one flat portion of the shaped plate material.

  According to the connecting terminal of the present invention, the flat conductor is provided in the width direction from the open side of the substantially U-shaped plate material because the flat conductor is provided with the substantially U-shaped plate material inserted in the width direction. Will be. For this reason, compared with the case where it inserts in the round crimping | compression-bonding part from the edge part of a flat type conductor, the difference in a mutual shape is small and can improve insertion property. And since it is a U-shaped board | plate material, it has already the structure matched with the shape of the flat conductor, The operation | work which crushes this site | part before insertion, etc. becomes unnecessary. Therefore, the insertion property of the flat conductor can be improved, and the work time for terminal connection can be reduced.

  In the connecting terminal according to the present invention, the conducting portion is provided to extend from a side surface of the one flat portion, and on the side of the substantially U-shaped plate member, the side on which the flat conductor is inserted. It is preferable to have a protruding positioning portion.

  According to this connection terminal, the conductive portion has a positioning portion that protrudes to the side on which the flat conductor is inserted on the substantially U-shaped plate material side, so the flat conductor is a substantially U-shaped plate material. After being inserted in the width direction from the open side, the end of the conductor is brought into contact with the positioning portion to be positioned by being pushed in the longitudinal direction of the flat conductor.

  In the connection terminal according to the present invention, it is preferable that the conducting portion is provided extending from an end surface of the one flat portion.

  According to this connection terminal, since the conducting portion is provided extending from the end face of the flat conductor, when the flat conductor is inserted between the flat portions of the plate, the connection terminal and the flat conductor The longitudinal direction of the crossing is approximately 90 degrees. Therefore, it is possible to contribute to the improvement of the conductor routing efficiency without bending the flat conductor in a direction that is difficult to bend. That is, the flat conductor is easy to bend in the vertical direction, but difficult to bend in the width direction. However, since the conducting portion intersects with the flat conductor at 90 degrees, it is not necessary to bend in a direction that is difficult to bend, or the bending angle can be reduced, which can contribute to the improvement of the routing efficiency.

  In the connection terminal of the present invention, it is preferable that the substantially U-shaped plate member has a protrusion protruding inward on the inner surface thereof.

  According to this connection terminal, since the substantially U-shaped plate member has a protrusion protruding inward on the inner surface thereof, the flat conductor is inserted by inserting the flat conductor into the substantially U-shaped plate member. Is temporarily clamped by a plurality of protrusions. Therefore, it is possible to reduce the possibility that the flat conductor will fall off from the substantially U-shaped plate when the connecting terminal is dipped in the solder bath later.

  In the connection terminal according to the present invention, it is preferable that the substantially U-shaped plate member has a thick portion that protrudes inward as its inner surface goes toward the U-shaped bottom.

  According to this connection terminal, since the substantially U-shaped plate member has a thick portion that protrudes inward as the inner surface goes toward the U-shaped bottom portion, the flat conductor is inserted into the substantially U-shaped plate member. Thus, the flat conductor is sandwiched and temporarily fixed by the thick portion near the bottom of the U-shape. Therefore, it is possible to reduce the possibility that the flat conductor will fall off from the substantially U-shaped plate when the connecting terminal is dipped in the solder bath later.

  ADVANTAGE OF THE INVENTION According to this invention, the insertion property of a flat type conductor can be aimed at and the terminal for a connection which can reduce the working time of a terminal connection can be provided.

It is a perspective view which shows the terminal for a connection which concerns on 1st Embodiment of this invention. It is a top view which shows the terminal for a connection shown in FIG. FIG. 3 is a side view of the connection terminal shown in FIG. 2, (a) is a view as seen from an arrow A in FIG. 2, and (b) is a view as seen from an arrow B in FIG. 2. It is a figure which shows the terminal for a connection which concerns on 2nd Embodiment, Comprising: (a) has shown the side view, (b) has shown the top view. It is a figure which shows the terminal for a connection concerning 3rd Embodiment, Comprising: (a) shows a 1st side view, (b) shows a 2nd side view, (c) has shown the top view. It is a perspective view which shows the terminal for a connection which concerns on 4th Embodiment of this invention. FIG. 7 is a top view showing the connection terminals shown in FIG. 6.

  Hereinafter, although this invention is demonstrated based on embodiment, this invention is not limited to the following embodiment.

  FIG. 1 is a perspective view showing a connection terminal according to the first embodiment of the present invention, and FIG. 2 is a top view showing the connection terminal shown in FIG. 3 is a side view of the connection terminal shown in FIG. 2, (a) is a view as seen from an arrow A in FIG. 2, and (b) is a view as seen from an arrow B in FIG. 2. In addition, in FIGS. 1-3, the flat litz wire 100 which has the coating | coated part 102 on the outer peripheral side of the flat conductor 101 (flat braided structure) shall also be illustrated on account of description.

  The connection terminal 1 according to the first embodiment shown in FIG. 1 to FIG. 3 is for electrically connecting a flat conductor 101, and generally includes a plate material 10 and a conduction portion 20. Has been. The plate member 10 and the conductive portion 20 are formed by punching and bending a metal plate.

  The plate member 10 has a substantially U shape in which an open side is provided in the width direction W so that the flat conductor 101 is inserted in the width direction W perpendicular to the longitudinal direction of the terminal 1. That is, the plate member 10 includes a first flat surface portion 11 that is a flat plate, a flat second surface portion 12 that is provided opposite to the flat surface portion, and a curved surface portion 13 that connects these at one end side. In the plate member 10, the interval L between the flat portions 11 and 12 is slightly larger than the thickness T of the flat conductor 101.

  The conducting portion 20 is provided by extending from one flat portion 11 of a substantially U-shaped plate material in the longitudinal direction of the flat conductor 101 (longitudinal direction after insertion of the flat conductor 101) (that is, a flat surface). For example, a plate material in which a hole 21 for bolt tightening is formed on the front end side. The hole 21 is fixed to the predetermined target and electrically connected by inserting a bolt together with the predetermined target and tightening.

  Further, the conducting portion 20 has a positioning portion 22 formed on the substantially U-shaped plate 10 side. The positioning portion 22 is a projection protruding to the side where the flat conductor 101 is inserted, that is, the upper surface side in FIG. 1 to 3, the positioning portion 22 is a point-like protrusion, but is not limited thereto, and may be a protrusion on a line extending in the width direction W, or a plurality of point-like protrusions. May be.

  Next, a terminal connection method using the connection terminal 1 according to the present embodiment will be described. First, the covering portion 102 of the flat litz wire 100 is removed. Thereby, the flat conductor 101 is exposed. In this state, the end portion of the conductor 101 may be in a state where a plurality of insulated conductors are scattered, and it is difficult to insert the end portion of the conductor 101 so as to be inserted into the connection terminal 1.

  Therefore, the flat conductor 101 and the connection terminal 1 are arranged so as to be in a parallel state, and the flat conductor 101 is moved in the width direction W from this state, and the flat portions 11 and 12 of the substantially U-shaped plate material 10. Insert between.

  Here, even if a plurality of insulated conductors are scattered at the end portion of the flat conductor 101, the flat conductor 101 is not scattered in the width direction W, and the insertion property is good. Moreover, since the space | interval L of the plane parts 11 and 12 is slightly larger than the thickness T of the flat conductor 101, it will insert favorably.

  In this state, the flat conductor 101 is slightly pushed in the direction of the conductive portion 20. As a result, the end portion of the flat conductor 101 comes into contact with the positioning portion 22, and further pressing is restricted and positioning is performed (that is, from the state of FIG. 2 to the state of FIG. 3). .

  Next, the operator immerses the connection terminal 1 in the solder bath while maintaining this positional relationship. As a result, the solder enters the gap between the flat conductor 101 inserted into the substantially U-shaped plate 10 and the flat portions 11 and 12, and the enamel coating of the enamel wire constituting the conductor 101 by heating with the solder is performed. The plate material 10 and the conductor 101 are electrically connected, and the two are fixedly connected by solidification of the solder.

  In addition, the present embodiment is not limited to the above-described terminal connection method, and when the conductor 101 is formed of a braid, it may be soaked in advance so that the end portion does not vary.

  Thus, according to the connection terminal 1 according to the first embodiment, since the flat conductor 101 includes the substantially U-shaped plate member 10 inserted in the width direction W, the flat conductor 101 is substantially the same. It is inserted in the width direction W from the open side of the U-shaped plate material 10. For this reason, compared with the case where it inserts in the round crimping | compression-bonding part from the edge part of a flat type conductor, the difference in a mutual shape is small and can improve insertion property. In addition, since it is a U-shaped plate member 10, the structure has already been adapted to the shape of the flat conductor 101, and operations such as crushing this part before insertion are unnecessary. Therefore, the insertion property of the flat conductor can be improved, and the work time for terminal connection can be reduced.

  In addition, since the conductive portion 20 has a positioning portion 22 that protrudes toward the side where the flat conductor 101 is inserted on the substantially U-shaped plate material 10 side, the flat conductor 101 is formed of the substantially U-shaped plate material 10. After being inserted in the width direction W from the open side, the end of the conductor 101 comes into contact with the positioning portion 22 to be positioned by being pushed in the longitudinal direction of the flat conductor 101.

  Next, a second embodiment of the present invention will be described. The connection terminal according to the second embodiment is the same as that of the first embodiment, but a part of the configuration is different. Only differences from the first embodiment will be described below.

  4A and 4B are diagrams showing a connection terminal according to the second embodiment, in which FIG. 4A shows a side view and FIG. 4B shows a top view. In FIG. 4B, a part of the configuration is seen through for easy understanding.

  As shown in FIGS. 4A and 4B, in the connection terminal 2 according to the second embodiment, the substantially U-shaped plate member 10 has a protrusion 14 protruding inward on the inner surface thereof. Specifically, one protrusion 14 is provided in the vicinity of the center of the flat surface portion 11 on the lower surface side in FIG. In addition, the flat surface portion 12 on the upper surface side is provided with two projections 14 on the lower surface side and positions slightly shifted in both the longitudinal direction and the width direction W. For this reason, by inserting the flat conductor 101 into the substantially U-shaped plate member 10, the flat conductor 101 is sandwiched and temporarily fixed at a plurality of points (three points) by the plurality of protrusions 14.

  Therefore, in the connection terminal 2 according to the second embodiment, it is easy to maintain the positional relationship after insertion, and the flat conductor 101 falls out of the substantially U-shaped plate 10 when immersed in the solder bath. This will reduce the possibility.

  In this way, according to the connection terminal 2 according to the second embodiment, as in the first embodiment, the insertion property of the flat conductor can be improved, and the work time for terminal connection can be reduced. Positioning can be performed.

  Furthermore, according to the second embodiment, it is possible to reduce the possibility that the flat conductor 101 is dropped from the substantially U-shaped plate member 10 when the connection terminal 2 is dipped in the solder bath later.

  Next, a third embodiment of the present invention will be described. The connection terminal according to the third embodiment is the same as that of the first embodiment, but a part of the configuration is different. Only differences from the first embodiment will be described below.

  FIG. 5 is a view showing a connection terminal according to a third embodiment, wherein (a) shows a first side view, (b) shows a second side view, and (c) shows a top view. ing. In addition, about FIG.5 (c), in order to make an illustration intelligible, a part structure shall be seen through.

  As shown in FIGS. 5A to 5C, in the connection terminal 3 according to the third embodiment, the substantially U-shaped plate member 10 has a thick portion 15 whose inner surface is tapered. . Specifically, one thick portion 15 is provided in the vicinity of the center in the longitudinal direction of the flat portion 11 on the lower surface side in FIG. Two flat portions 12 on the upper surface side are provided so as to sandwich the thick portion 15 on the lower surface side in the longitudinal direction.

  Moreover, as shown in FIG.5 (b), the thick part 15 has the inclination which protrudes gradually inside as each goes to the U-shaped bottom part of the board | plate material 10. As shown in FIG. For this reason, by inserting the flat conductor 101 into the substantially U-shaped plate member 10, the flat conductor 101 is formed at a plurality of points (three points) by a plurality of thick portions 15 (particularly the U-shaped bottom side). It is clamped and temporarily fixed.

  Therefore, in the connection terminal 3 according to the third embodiment, it is easy to maintain the positional relationship after insertion, and the flat conductor 101 falls off from the substantially U-shaped plate 10 when immersed in the solder bath. This will reduce the possibility.

  As described above, according to the connection terminal 3 according to the third embodiment, as in the first embodiment, the insertion property of the flat conductor can be improved, and the work time of the terminal connection can be reduced. Positioning can be performed.

  Furthermore, according to the third embodiment, it is possible to reduce the possibility that the flat conductor 101 is dropped from the substantially U-shaped plate member 10 when the connection terminal 3 is dipped in the solder bath later.

  Next, a fourth embodiment of the present invention will be described. The connection terminal according to the fourth embodiment is the same as that of the first embodiment, but a part of the configuration is different. Only differences from the first embodiment will be described below.

  FIG. 6 is a perspective view showing a connection terminal according to a fourth embodiment of the present invention, and FIG. 7 is a top view showing the connection terminal shown in FIG. 6 and 7, for the sake of explanation, the flat litz wire 100 having the covering portion 102 on the outer peripheral side of the flat conductor 101 (flat braided structure) is also illustrated.

  As shown in FIG. 6, the connection terminal 4 according to the fourth embodiment is different from that of the first embodiment in the connection direction of the plate member 10 and the conductive portion 20. That is, in the first embodiment, the conduction portion 20 is provided extending from the side surface 11a of the first flat surface portion 11, whereas in the fourth embodiment, the conduction portion 20 is a U-shape of the substantially U-shaped plate material 10. It extends from the end surface 11b corresponding to the tip portion. Therefore, the plate member 10 according to the fourth embodiment has a substantially U shape in which the open side is provided toward the conduction portion 20. Therefore, in 4th Embodiment, the conduction | electrical_connection part 20 will be extended and provided about 90 degree | times with respect to the longitudinal direction of the flat conductor 101 (longitudinal direction after insertion of the flat conductor 101). (See FIG. 7).

  Next, a terminal connection method using the connection terminals 4 according to the fourth embodiment will be described. First, the covering portion 102 of the flat litz wire 100 is removed. Thereby, the flat conductor 101 is exposed. In this state, the end portion of the conductor 101 may be in a state where a plurality of insulated conductors are scattered, and it is difficult to insert the end portion of the conductor 101 so that the connection terminal 4 is inserted.

  Therefore, the flat conductor 101 and the connection terminal 4 are arranged so that the respective longitudinal directions are approximately 90 degrees, and the flat conductor 101 is moved to the plate member 10 side from this state, and the substantially U-shaped plate member is moved. It is inserted between 10 plane parts 11 and 12.

  Here, even if a plurality of insulated conductors are scattered at the end portion of the flat conductor 101, the flat conductor 101 does not vary in the width direction, and the insertion property is good. Further, since the distance L between the flat portions 11 and 12 is slightly larger than the thickness T of the flat conductor 101, as in the first embodiment, the flat portions 11 and 12 are inserted satisfactorily. Then, the flat conductor 101 is pushed into the vicinity of the curved surface portion 13 of the substantially U-shaped plate material 10.

  Next, the operator immerses the connection terminal 4 in the solder bath while maintaining this positional relationship. As a result, the solder enters the gap between the flat conductor 101 inserted into the substantially U-shaped plate 10 and the flat portions 11 and 12, and the enamel coating of the enamel wire constituting the conductor 101 by heating with the solder is performed. The plate material 10 and the conductor 101 are electrically connected, and the two are fixedly connected by solidification of the solder.

  In addition, the present embodiment is not limited to the above-described terminal connection method, and when the conductor 101 is formed of a braid, it may be soaked in advance so that the end portion does not vary.

  In this way, according to the connection terminal 4 according to the fourth embodiment, as in the first embodiment, it is possible to improve the insertability of a flat conductor and reduce the work time for terminal connection.

  Furthermore, according to the fourth embodiment, since the conducting portion 20 is provided extending from the end face 11 b of the flat conductor 101, when the flat conductor 101 is inserted between the flat portions 11 and 12 of the plate member 10. The longitudinal direction of the connection terminal 4 and the flat conductor 101 intersects approximately 90 degrees. Therefore, it is possible to contribute to the improvement of the wiring efficiency of the conductor 101 without bending the flat conductor 101 in a direction in which it is difficult to bend. That is, the flat conductor 101 is easy to bend in the vertical direction shown in FIG. 6, but difficult to bend in the width direction. However, since the conducting portion 20 intersects the flat conductor 101 at 90 degrees, it is not necessary to bend in a direction that is difficult to bend, or the bending angle can be reduced, which can contribute to the improvement of the routing efficiency.

  In addition, although the conduction | electrical_connection part 20 has the hole part 21 in 4th Embodiment, it is desirable that it is a flat plate which does not have an unevenness | corrugation as a whole. That is, it is desirable not to have the positioning part 22. In the connection terminal 4 according to the fourth embodiment, the conductor 101 is inserted from the conductive portion 20 side. For this reason, if the conductive portion 20 has irregularities, it becomes an obstacle during insertion.

  As described above, the present invention has been described based on the embodiment, but the present invention is not limited to the above embodiment, and may be modified without departing from the gist of the present invention.

  For example, in the connection terminals 1 to 4 according to the present embodiment, the plate member 10 has a curved surface portion 13 and is substantially U-shaped, but not limited to this, the curved surface portion 13 is replaced with a third planar portion. It may be a concave shape. The curved surface portion 13 may be V-shaped, and the flat surface portions 11 and 12 may not be parallel to each other, and the gap L on the open side may be slightly increased. Moreover, if the board | plate material 10 has the open side in the width direction W, the right and left of the open side will not ask.

  Further, in the second and third embodiments, the plate member 10 sandwiches the flat conductor 101 with the plurality of protrusions 14 and the thick portion 15, but the number thereof may be one or two, or four. It may be the above.

  In addition, in the above embodiment, the conducting portion 20 is provided on the same plane as the flat portion 11, but the present invention is not limited to this, and the conducting portion 20 is bent such that the conducting portion 20 is bent at an intermediate portion or the like by 90 degrees. Also good.

  When the flat litz wire 100 to which the connection terminals 1 to 4 are connected is used in the coil unit described above, the non-contact power feeding method may be an electromagnetic induction method or a magnetic resonance method. May be.

1 to 4 ... Connection terminals 10 ... Plate members 11 and 12 ... Plane part 11a ... Side face 11b ... End face 13 ... Curved part 14 ... Projection 15 ... Thick part 20 ... Conductive part 21 ... Hole 22 ... Positioning part L ... Spacing T ... Thickness W ... Width direction

Claims (5)

A connection terminal electrically connected to a flat conductor,
A substantially U-shaped plate member into which the flat conductor is inserted in the width direction;
A conductive portion provided extending from one flat surface portion of the substantially U-shaped plate material;
A connection terminal comprising: The conducting portion is provided to extend from a side surface of the one flat portion, and has a positioning portion that protrudes to the side on which the flat conductor is inserted on the substantially U-shaped plate material side. The connection terminal according to claim 1. The connection terminal according to claim 1, wherein the conductive portion is provided so as to extend from an end surface of the one planar portion. The connection terminal according to any one of claims 1 to 3, wherein the substantially U-shaped plate member has a protrusion protruding inwardly on an inner surface thereof. 4. The connection terminal according to claim 1, wherein the substantially U-shaped plate member has a thick portion that protrudes inwardly as its inner surface goes toward the U-shaped bottom portion. 5. .

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