JP2012069254A - Pressure contact terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressure contact terminal having a new structure capable of achieving improvement in the degree of wiring freedom of an electric wire and miniaturization of an electric connection box when an internal circuit of the electric connection box is constituted by bringing the terminal into pressure contact with the electric wire wired on an insulating plate.SOLUTION: At the bottom side portion of a slot part 19 having a pair of pressure contact blades 18a and 18b disposed opposite to each other, a conducive part 22 is formed in which a covered electric wire 34 is press-fitted between the pair of the pressure contact blades 18a and 18b and fixed thereto in a conductive state, while at an opening side portion of the slot part 19, a temporary fixing portion 20 is formed in which the covered electric wire 34 is press-fitted between the pair of the pressure contact blades 18a and 18b by a smaller force than that applied to the conductive part 22 and temporarily fixed thereto.

Description

  The present invention relates to a terminal attached to an insulating plate of an electric junction box, and more particularly to a pressure contact terminal to which an electric wire wired on the insulating plate is pressed.

  Conventionally, as an internal circuit of an electrical connection box mounted on an automobile, etc., a plurality of press contact terminals are attached to an insulating plate, and the internal circuit is configured by press-contacting these press contact terminals to an electric wire laid on the insulating plate. It has been known. For example, those described in Japanese Utility Model Laid-Open No. 6-24324 (Patent Document 1). According to such a structure, it is possible to change the circuit shape by changing the fixing position of the press contact terminal on the insulating plate and the wiring shape of the electric wire, and a bus bar formed exclusively for each circuit shape. Compared to the above, it is possible to flexibly cope with a change in circuit shape.

  By the way, as described in Patent Document 1, an electric wire arranged on an insulating plate is routed with its starting point fixed to an electric wire holding portion provided on the insulating plate.

  However, such a structure requires a space for forming the electric wire holding portion on the insulating plate, which leads to an increase in the size of the insulating plate. Therefore, there have been cases where it has not been possible to meet the recent demand for downsizing of the electrical junction box. In addition, since the wiring start position of the electric wire is fixed, the degree of freedom of wiring of the electric wire is limited, and there is a limit to flexible response to design changes.

Japanese Utility Model Publication No. 6-24324

  The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is that when a terminal is pressed against an electric wire laid on an insulating plate to configure an internal circuit of an electric junction box, An object of the present invention is to provide a pressure contact terminal having a novel structure capable of improving the degree of freedom of wiring and reducing the size of the electrical junction box.

  A first aspect of the present invention includes a slot portion having a pair of press contact blades opposed to each other and is attached to an insulating plate, and a covered electric wire laid on the insulating plate is bottomed from the opening side of the slot portion. In the press contact terminal that is press-fitted toward the side and conducted, a bottom portion of the slot portion is formed with a conducting portion that is pressed into the pair of press contact blades and fixed in a conducting state. On the other hand, the opening side portion of the slot portion is provided with a temporary fixing portion in which the covered electric wire is press-fitted and temporarily fixed to the pair of press contact blades with a force smaller than that of the conduction portion. , Feature.

  According to the present invention, the electric wire can be temporarily fixed by the temporary fixing portion of the press contact terminal. Here, temporary fixing refers to a fixed state that is smaller than the fixing force in the conducting portion and is such that the covered electric wire does not come off the press contact terminal when the covered electric wire is wired, for example, the temporarily fixed covered electric wire. This means a state in which the fixed state to the press contact terminal is maintained even if the wire is pulled in the wire length direction, or a fixed state in which the covered electric wire does not fall off even if the opening side of the slot portion is directed vertically downward. In addition, in the temporarily fixed state, the coating of the covered electric wire may or may not be peeled off. And by temporarily fixing the covered electric wire to the press contact terminal and positioning and holding it on the insulating plate, for example, it is possible to select an arbitrary press contact terminal and use it as a wiring start point of the covered electric wire. It is possible to improve the wiring work efficiency and improve the working efficiency of the wiring by temporarily fixing the intermediate portion of the covered electric wire. Furthermore, since it is not necessary to form an electric wire holding part for fixing the starting point of the covered electric wire on the insulating plate, it is possible to reduce the size of the insulating plate and thus the electric junction box.

  In particular, the pressure input of the covered electric wire to the temporarily fixed portion is made smaller than that of the conducting portion. Thereby, the covered electric wire is firmly press-fitted in the conduction portion, and strong conduction with the press contact blade is realized. On the other hand, in the temporary fixing part, the covered electric wire can be temporarily fixed with a relatively small pressure input, the working efficiency for the wiring can be improved, and a special device that exerts a large pressure input on the wiring The conventional wiring device can also be used without significant modification.

  Moreover, the pressure input to the conduction | electrical_connection part and temporary fixing part of a covered electric wire is the force of the direction which pushes a covered electric wire into a slot part. On the other hand, the positioning and holding force required for wiring is a force that resists pulling the covered electric wire in the wire length direction. Therefore, even with a small pressure input, by inserting the covered electric wire between the pair of press contact blades, it is possible to ensure a sufficient size as the positioning holding force for the wiring.

  According to a second aspect of the present invention, in the one described in the first aspect, a distance between the pair of press contact blades is larger than that of the conductive portion in the temporary fixing portion.

  If it does in this way, the pressure input to a temporary fixing part can be made smaller than a conduction | electrical_connection part by making the penetration depth with respect to a covered electric wire smaller than a conduction | electrical_connection part by a temporary fixing part. In addition, the temporary fixing portion can be expected to provide a guiding action when the covered wire is pressed into the conducting portion. More preferably, the temporary fixing portion is formed with a taper portion in which the distance between the facing of the pair of press contact blades gradually decreases toward the conducting portion side. In this way, a more effective guiding action can be obtained.

  According to a third aspect of the present invention, in the one described in the second aspect, in the temporary fixing portion, a distance between the facing of the pair of press contact blades is gradually decreased toward the opening side of the slot portion. A constricted part is provided.

  According to this aspect, the opening size on the opening side of the slot portion is reduced by the constricted portion. Thereby, an effective drag can be obtained against the force exerted on the electric wire in the pulling direction from the temporarily fixed portion (the opening direction of the slot portion). As a result, the electric wire can be prevented from coming off from the temporary fixing portion, and can be temporarily fixed more stably.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the thickness dimension of the end surface of the opposing side edge in the pair of press contact blades is the temporary fixing portion. It is made smaller than the conduction part.

  If it does in this way, the pressure input to a temporary fixing part can be made smaller than a conduction | electrical_connection part by making the contact area with respect to a covered electric wire smaller in a temporary fixing part than a conduction | electrical_connection part. For example, this aspect can be suitably adopted by making the opposing side edge portions of the pair of press contact blades have a tapered cross section in the temporary fixing portion rather than the conducting portion. And by reducing the thickness dimension, it is possible to sufficiently secure the depth of biting into the covered electric wire while reducing the pressure input, so the positioning holding force in the wire length direction of the covered electric wire can be effectively ensured. . However, it is of course possible to use this aspect in combination with the second or third aspect. In the temporary fixing portion, the distance between the pair of press contact blades is made larger than that of the conducting portion, and the thickness of the press contact blade is increased. You may make a dimension small.

  According to the present invention, the temporary fixing portion of the covered electric wire is provided on the press contact terminal attached to the insulating plate. As a result, when the covered electric wire is wired, the covered electric wire can be positioned and held by the temporary fixing portion of the press contact terminal. Thereby, the wiring starting point of a covered electric wire can be set to arbitrary positions, and a routing freedom degree can be improved. Further, the work efficiency of the wiring can be improved by temporarily fixing the intermediate portion of the covered electric wire and positioning and holding it on the insulating plate. Furthermore, since it is not necessary to form the holding portion of the covered electric wire on the insulating plate, the insulating plate can be reduced in size, and further downsizing of the electrical junction box that accommodates the insulating plate can be achieved. I can do it.

The front view of the press-contact terminal as 1st embodiment of this invention. The front view of the slot part of the press-contact terminal shown in FIG. FIG. 3 is an A arrow view in FIG. 2. FIG. 3 is a front view showing both a temporarily fixed state of a covered electric wire and a connection state to a conduction portion of the slot portion shown in FIG. 2. Explanatory drawing for demonstrating the assembly | attachment state to the insulating board of the press-contact terminal shown in FIG. The front view of the slot part of the press-contact terminal as 2nd embodiment of this invention. A arrow view in FIG. The front view which shows the connection state to the temporary fixing state of a covered wire | conductor, and the connection part of the slot part shown in FIG. The front view of the slot part of the press-contact terminal as 3rd embodiment of this invention. FIG. 10 is an A arrow view in FIG. 9. The front view which shows the connection state to the temporary fixing state of a covered wire | conductor, and the connection part of the slot shown in FIG. The front view of the slot part of the press-contact terminal as 4th embodiment of this invention. FIG. 13 is an A arrow view in FIG. 12. FIG. 14 is a front view showing both the temporarily fixed state of the covered electric wire and the connection state to the conduction portion of the slot portion shown in FIG. 13.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, FIG. 1 shows a press contact terminal 10 as a first embodiment of the present invention. The press contact terminal 10 is assembled to an insulating plate 46 (see FIG. 5), which will be described later, and is press-contacted to the covered electric wire 34. The press contact terminal 10 is an integrated product formed by press punching and crushing a metal plate having a plating process such as tin on the surface of iron, copper, brass or the like.

  The press contact terminal 10 has a left-right symmetric shape with respect to a center line O in the width direction (left-right direction in FIG. 1). The press contact terminal 10 has a connecting portion 12 formed at one end (upward in FIG. 1) in the length direction across a central portion 11 in the length direction (up and down direction in FIG. 1). A press-contact portion 14 is formed at the end of each.

  The connecting portion 12 has a substantially constant longitudinal rectangular cross section and has a flat tab shape extending in the length direction of the press contact terminal 10. In addition, the front-end | tip edge part 16 of the connection part 12 is made into the taper taper shape by performing a crushing process etc. A female terminal of a connector (not shown) as an external electrical component is connected to the connection portion 12. In addition, as a concrete shape of the connection part 12, conventionally well-known various shapes are employable suitably according to the terminal shape of the electrical component connected. For example, as a so-called tuning fork shape of a substantially U shape having a pair of press contact blades, a flat connection terminal such as a fuse or a relay may be sandwiched between the pair of press contact blades.

  On the other hand, the pressure contact portion 14 is formed with a pair of pressure contact blades 18a and 18b. These press contact blades 18a and 18b extend from the central portion 11 in a direction opposite to the connection portion 12 (downward in FIG. 1), and are mutually in the width direction of the press contact terminal 10 (left and right direction in FIG. 1). Opposing to each other with a gap. Thereby, the press-contact part 14 is made into the substantially U shape, and the slot part 19 is formed between the opposing surfaces of a pair of press-contact blades 18a and 18b. The slot 19 is open in the protruding direction (downward in FIG. 1) of the pair of press contact blades 18a, 18b, and the protruding tip side (downward in FIG. 1) of the press contact blades 18a, 18b is the opening side. On the other hand, the protruding proximal end side (upward in FIG. 1) of the press contact blades 18a and 18b is the bottom side. A temporary fixing portion 20 is formed on the opening side of the slot portion 19, while a conduction portion 22 is formed on the bottom side.

  2 and 3 show the pressure contact portion 14. The press contact blades 18a and 18b are symmetrical with respect to the center line O in the width direction of the press contact terminal 10 (see FIG. 1). In the following description, a structure common to the press contact blade 18a and the press contact blade 18b will be described without being particularly distinguished as the press contact blade 18. A tapered portion 24 is formed at the tip edge portion of the press contact blade 18. The press contact blade 18 has a width dimension (horizontal dimension in FIG. 2) and a thickness dimension (vertical dimension in FIG. 3) as it goes to the tip end side (downward in FIG. 2) in the taper portion 24. ) Are gradually reduced. Thereby, the end surfaces 30a and 30b of the opposing side edge portions of the press contact blades 18a and 18b are gradually separated from each other toward the tip end side of the press contact blades 18a and 18b in the tapered portions 24 and 24.

  Further, a clamping blade portion 28 is formed on the temporary fixing portion 20 of the press contact blade 18. As shown in FIG. 3, the sandwiching blade portion 28 has a sharp shape with a triangular cross-section that gradually decreases in thickness dimension t as it approaches the other press-contact blade 18 a (18 b). As a result, the thickness dimension te of the forming portion of the sandwiching blade portion 28 is substantially 0 on the end faces 30a and 30b of the opposite side edge portions of the press contact blades 18a and 18b, respectively. Thickness dimension: smaller than tc. An inclined guide surface that is smoothly continuous without a bending line with respect to the tapered portion 24 at the tip edge portion (lower edge portion in FIG. 2) of the clamping blade portion 28 in the length direction of the press contact blade 18. 32 is formed. Thereby, the thickness dimension te of the end face 30 in the clamping blade part 28 is gradually brought closer to 0 from the tapered part 24 by the inclined guide surface 32. The pressure contact portion 14 is expanded on the opening side from the inclined guide surface 32 of the clamping blade portion 28 to the taper portion 24.

  On the other hand, the conduction part 22 extends over a predetermined length with a constant thickness dimension: t. Thereby, the end surface 30 in the conduction | electrical_connection part 22 is extended in the length direction of the press-contacting blade 18 with fixed thickness dimension: tc. The end faces 30a, 30b of the pair of press contact blades 18a, 18b are connected to each other by a semicircular curved surface 33 formed on the bottom side of the press contact portion 14, and the spring properties of the press contact blades 18a, 18b are ensured. Has been.

  As shown in FIG. 4, the distance D between the pair of press contact blades 18a and 18b in the present embodiment is constant in the length direction of the press contact blades 18a and 18b except for the taper portion 24 and the inclined guide surface 32. Has been. And in order to electrically connect with the covered electric wire 34 in the conduction | electrical_connection part 22, distance between facings: D of a pair of press contact blade 18a, 18b: D is set smaller than the diameter dimension: (phi) i of the core wire 36 in the covered electric wire 34. FIG. . In addition, the conventionally well-known thing can be employ | adopted for the covered electric wire 34 suitably, for example, the enameled wire etc. with which the core wire 36 which consists of a copper wire etc. was covered with the insulating film 38 by an enamel are employ | adopted.

  Further, as shown in FIGS. 2 and 3, a locking portion 40 that protrudes outward in the width direction of the press contact terminal 10 is formed at the distal end portion of the press contact blade 18. The locking portion 40 is formed from the tip edge portion of the press contact blade 18 to a length dimension slightly smaller than the length dimension of the temporary fixing portion 20. By locking these locking portions 40, 40 to an insulating plate 46 to be described later, it is possible to prevent the press contact terminal 10 from coming off from the insulating plate 46. As a result, the external width dimension (the horizontal dimension in FIG. 2) of the slot 14 has a tapered shape that is gradually reduced from the central portion 11 to the locking portion 40. After projecting in the direction, the taper has a tapered shape that gradually decreases as it goes to the tip edge of the press contact blades 18a and 18b again. This facilitates insertion into an insulating plate 46 described later.

  Furthermore, as shown in FIG. 1, the center portion 11 of the press contact terminal 10 has a pair of stoppers 44, 44 that protrude in opposite directions in the width direction of the press contact terminal 10 (left and right direction in FIG. 1). Is formed. The width dimension of the press contact terminal 10 (the dimension in the left-right direction in FIG. 1) is the largest in the formation portions of the stoppers 44 and 44.

  As shown in FIG. 5, the press contact terminal 10 having such a structure is assembled to an insulating plate 46 accommodated in an electrical junction box. The insulating plate 46 is made of non-conductive synthetic resin, and a terminal insertion hole 48 penetrating in the thickness direction is provided at an appropriate position. Then, when the press contact terminal 10 is inserted into the terminal insertion hole 48 from the press contact portion 14 side, the press contact portion 14 protrudes from the insulating plate 46. As shown in FIG. 5, the insertion amount of the press contact terminal 10 may be defined by locking the stoppers 44 and 44 with the terminal insertion hole 48 having a stepped shape.

  Then, the covered electric wire 34 is press-fitted from the opening side toward the bottom side with respect to the press-contact portion 14 protruding from the insulating plate 46. In the present embodiment, the distance between the facing blades 18a and 18b: D (see FIG. 4) is constant from the temporary fixing part 20 to the conduction part 22, while the thickness of the end face 30 in the temporary fixing part 20 The dimension: te (see FIG. 3) is set to be smaller than the thickness dimension: tc of the end face 30 in the conductive portion 22. Thereby, the temporary fixing portion 20 having a small thickness dimension has a smaller contact area with the covered electric wire 34 than the conducting portion 22 and can be press-fitted with a pressure input smaller than that of the conducting portion 22. Then, the sandwiching blades 28, 28 of the temporary fixing unit 20 sandwich the covered electric wire 34 and are hooked on the covered electric wire 34 in the wire length direction of the covered electric wire 34, so that the covered electric wire 34 is positioned and held on the temporary fixing unit 20. Can be temporarily fixed. In this temporarily fixed state, the covered electric wire 34 can be wired on the insulating plate 46.

  After that, by press-fitting the covered electric wire 34 to the conduction portion 22, the coating 38 of the covered electric wire 34 is broken by the press contact blades 18 a and 18 b, and the press contact blade opened in the direction in which the covered electric wire 34 is inserted and separated from each other. The core wire 36 of the covered electric wire 34 is clamped in a state of being in direct contact with the press contact blades 18a and 18b by the restoring force of 18a and 18b. Thereby, the press contact blades 18a and 18b are pressed against the core wire 36, and the press contact terminal 10 and the covered electric wire 34 are electrically connected. In this embodiment, since the distance D between the pressure contact blades 18a and 18b in the temporary fixing portion 20 is equal to that of the conduction portion 22, the covered electric wire 34 is an inclined guide surface of the sandwiching blade portions 28 and 28. In the process of passing through 32, the coating 38 is broken. And since the clamping blade parts 28 and 28 are made into the sharp shape, the removal of the film 38 can be performed easily and reliably.

  According to the present embodiment, the covered electric wire 34 can be temporarily fixed to the temporary fixing portion 20 of the press contact terminal 10. Thereby, it becomes possible to temporarily fix the wiring wire starting point of the covered electric wire 34 to the press contact terminal 10. As a result, it is not necessary to form the fixing portion of the covered wire 34 on the insulating plate 46, and a larger effective space of the insulating plate 46 can be secured, and the structure of the insulating plate 46 is simplified and reduced in size. Therefore, the electrical junction box that accommodates the insulating plate 46 can be downsized. Moreover, since the covered electric wire 34 can be temporarily fixed by arbitrarily selecting the plurality of press contact terminals 10 assembled to the insulating plate 46, the degree of freedom of the arrangement of the covered electric wire 34 can also be improved. Furthermore, when the covered electric wire 34 is long, it is possible to carry out wiring while temporarily fixing the intermediate portion of the covered electric wire 34 to the press contact terminal 10, and wiring work by facilitating handling of the covered electric wire 34. It is also possible to improve efficiency.

  In particular, in the present embodiment, the temporary fixing portion 20 is formed by the sharp sandwiching blade portions 28 and 28. Accordingly, the temporarily fixed state of the covered electric wire 34 can be stably obtained by cutting the sandwiching blade portions 28 and 28 into the covered electric wire 34. Further, the covered electric wire 34 can be guided between the sandwiching blade portions 28 and 28 by the taper portions 24 and 24 and the inclined guide surfaces 32 and 32 of the sandwiching blade portions 28 and 28.

  Next, FIGS. 6 and 7 show a pressure contact portion 52 of a pressure contact terminal 50 according to a second embodiment of the present invention. In the following description, parts having the same structure as in the first embodiment are denoted by the same reference numerals as those in the first embodiment in the drawing, and the description thereof is omitted as appropriate. Further, in each of the following embodiments, the conventionally known various shapes can be appropriately employed on the opposite side of the press contact portion 52 as in the connection portion 12 in the first embodiment.

  The press contact blades 18a and 18b in the present embodiment extend from the temporary fixing portion 20 to the conducting portion 22 with a constant thickness dimension: t, and the temporary fixing portion 20 and the conducting portion 22 have the same thickness dimension. Has been. On the other hand, the distance between the facings of the press contact blades 18a and 18b is different between the temporarily fixed part 20 and the conducting part 22, and the distance between facings D1 in the temporarily fixed part 20 is larger than the distance between facings D2 in the conducting part 22. Has been enlarged. Thereby, the press contact portion 52 has a stepped shape in which the dimension on the opening side is larger than that on the bottom portion side, and a step surface 54 is formed between the temporary fixing portion 20 and the conducting portion 22. As shown in FIG. 8, the distance D <b> 1 between the press contact blades 18 a and 18 b in the temporary fixing portion 20 is slightly smaller than the outer diameter dimension of the covered electric wire 34: φo. On the other hand, the distance D2 between the press contact blades 18a and 18b in the conducting portion 22 is slightly smaller than the diameter dimension φi of the core wire 36, as in the first embodiment.

  According to the press contact terminal 50 in the present embodiment, as shown in FIG. 8, the covered electric wire 34 is temporarily fixed by being sandwiched between the end surfaces 30 a and 30 b of the temporary fixing unit 20. Since the distance D1 between the end faces 30a and 30b is substantially equal to the outer diameter dimension φo of the covered electric wire 34, the covered electric wire 34 is moved between the end faces 30a and 30b of the temporary fixing portion 20 with a small pressure input. Can be press-fitted. More preferably, the covered electric wire 34 is partially inserted into the conductive portion 22 slightly beyond the step surfaces 54 and 54. In this way, more stable temporary fixing can be performed.

  According to the present embodiment, the distance between the opposing faces of the end faces 30a and 30b in the temporary fixing part 20: D1 is larger than the distance between the opposing faces of the end faces 30a and 30b in the conducting part 22: D2, so The pressure input is made smaller than the pressure input to the conduction part 22. In this way, since the thickness dimension t of the press contact blades 18a and 18b is constant through the temporary fixing portion 20 and the conduction portion 22, it is possible to form the temporary fixing portion 20 only by press punching. Manufacturing becomes easy. Further, since the facing distance D1 in the temporary fixing portion 20 is substantially equal to the outer diameter dimension φo of the covered electric wire 34, the covered electric wire 34 is made conductive by fitting the covered electric wire 34 into the temporary fixing portion 20. Positioning with respect to the portion 22 can also facilitate press-fitting into the conduction portion 22.

  Next, FIGS. 9 and 10 show a pressure contact portion 62 of a pressure contact terminal 60 as a third embodiment of the present invention. The press contact blades 18 a and 18 b in the present embodiment also have a constant thickness dimension: t from the temporary fixing portion 20 to the conduction portion 22. On the other hand, as shown in FIG. 11, the distance between the end faces 30a and 30b in the temporary fixing portion 20 is gradually increased from the conductive portion 22 side to the tapered portion 24 side. At the end edge portion, the diameter of the core wire 36 is equal to the conduction portion 22, and the distance between the facing portions D3 is smaller than φi. On the other hand, at the end edge on the taper portion 24 side, the outer diameter size of the covered wire 34 is: The facing distance: D4, which is substantially equal to φo.

  Also in the present embodiment, the distance between the facing surfaces 30a and 30b of the temporarily fixed portion 20 is smaller than that of the conducting portion 22, so that the pressure input of the covered electric wire 34 to the temporarily fixed portion 20 can be performed more than the conducting portion 22. It can be made smaller. And according to this embodiment, since the distance between the end faces 30a and 30b in the temporarily fixed portion 20 is gradually reduced as the conductive portion 22 is approached, the temporary fixed portion 20 is connected to the conductive portion 22. By gradually approaching the pressure input, the press-fitting into the conduction part 22 can be facilitated. In addition, since the amount of biting into the covered electric wire 34 is gradually increased as the temporary fixing portion 20 approaches the conduction portion 22, the coating 38 can be removed more smoothly.

  Next, FIGS. 12 and 13 show a pressure contact portion 72 of a pressure contact terminal 70 according to a fourth embodiment of the present invention. The press contact blades 18 a and 18 b in the present embodiment also have a constant thickness dimension: t from the temporary fixing portion 20 to the conduction portion 22. The pressure contact portion 72 has a stepped shape in which the dimension of the opening side of the slot portion 19 is larger than that of the bottom portion side. In particular, the step surface 54 of the present embodiment has a curved surface shape.

  Further, a constricted portion 74 is formed in the temporary fixing portion 20. In the constricted part 74, the distance between the pressure-contacting blades 18a, 18b is gradually reduced toward the opening side (the lower side in FIG. 12) of the slot part 19. Thereby, the distance between the facing blades 18a and 18b is the largest facing distance D5 at the opening edge of the slot portion 19 in the stepped surface 54, and the connecting portion 76 with the tapered portion 24. And the smallest distance between opposite faces: D6. As shown in FIG. 14, the largest distance between opposing surfaces: D5 is made larger than the outer diameter dimension of the covered electric wire 34: φo, while the smallest distance between opposing faces: D6 is the outer diameter size of the covered electric wire 34: It is smaller than φo. In other words, the distance between the pressure-contacting blades 18 a and 18 b in the temporary fixing portion 20 is once constricted in the constricted portion 74 and expanded again in the tapered portion 24 in the opening direction of the slot portion 19.

  According to the present embodiment, as shown in FIG. 14, the covered electric wire 34 gets over the connecting portion 76 with the taper portion 24 set to the smallest distance between opposite ends: D <b> 6, and press-contact blade of the temporary fixing portion 20. It is inserted between 18a and 18b. The covered electric wire 34 is temporarily fixed to the temporary fixing unit 20 by being sandwiched between the press contact blades 18a and 18b. In particular, in the present embodiment, the constriction 74 makes the distance between the press contact blades 18 a, 18 b opposite to the outer diameter dimension φo of the covered electric wire 34 at the connecting portion 76 with the tapered portion 24. As a result, when a force in a direction (downward in FIG. 14) is applied to the covered electric wire 34, the covered electric wire 34 is locked by the end faces 30a and 30b. Can be more effectively prevented. As a result, more stable temporary fixing can be performed.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, the specific shape of the temporary fixing portion is not limited to that of the above embodiment. In the embodiment, the temporary fixing portion is formed by making either the thickness dimension of the press contact blade and the distance between the facing portions different from the conducting portion. However, both the thickness dimension and the distance between the facing portions are defined as the conducting portion. Alternatively, a temporary fixing portion may be formed. That is, the thickness dimension of each of the pair of press contact blades may be smaller than the conducting portion in the temporarily fixed portion, and the distance between the pair of press contact blades may be larger than that of the conducting portion in the temporarily fixed portion. good.

10, 50, 60: Press contact terminal, 14, 52, 62: Press contact portion, 18a, b: Press contact blade, 19: Slot portion, 20: Temporary fixing portion, 22: Conducting portion, 30a, b: End face (opposite side edge End surface), 34: covered wire, 46: insulating plate, 74: constricted part

Claims (4)

A pair of press contact blades are provided with a slot portion facing each other and attached to an insulating plate, and a covered electric wire laid on the insulating plate is press-fitted from the opening side to the bottom side of the slot portion to be conducted. In the pressure contact terminal
On the bottom side portion of the slot portion, a conductive portion is formed in which the covered electric wire is pressed into the pair of press contact blades and fixed in a conductive state,
A pressure-bonding part is formed in the opening side portion of the slot part, wherein a temporary fixing part is formed in which the covered electric wire is press-fitted to the pair of pressure-contacting blades with a force smaller than that of the conduction part. Terminal.   The press contact terminal according to claim 1, wherein a distance between the pair of press contact blades is larger than that of the conducting portion in the temporary fixing portion.   3. The press contact terminal according to claim 2, wherein the temporary fixing portion is provided with a constricted portion in which a distance between the facing of the pair of press contact blades is gradually reduced toward the opening side of the slot portion.   The pressure contact terminal according to any one of claims 1 to 3, wherein a thickness dimension of an end surface of an opposing side edge portion of the pair of pressure contact blades is smaller than the conduction portion in the temporary fixing portion.

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