JP5647027B2 - Wire connection connector - Google Patents

Description

  The present invention relates to an electric wire connecting connector used for electrically connecting two or more required plural single wires or a plurality of assembled electric wires having a small bending resistance.

  2. Description of the Related Art Conventionally, a wire connecting connector for electrically connecting a plurality of electric wires has been present and used for many years.

  Such a connector for connecting electrical wires to which multiple wires are electrically connected is attached by crimping a terminal fitting on the end of the wire, most of which are round terminal fittings with a crimping tool. Many of them are in the form of being tightened and fixed with screw screws or bolts. (See FIGS. 25 and 26 of Patent Document 1)

  On the other hand, the terminal wire is attached to the end of the electric wire and it is tightened and fixed with screw screws or bolts. The core part with the wire covering removed can be rotated without attaching the terminal metal fitting to the end of the electric wire. An electric wire connecting device is also known which is energized by being pressed onto the conductor from the upper surface by the cam surface of the cam mechanism. (See FIG. 1-24 of Patent Document 1)

  In addition, in a push-type connector in which the push-type lever is operated up and down, a lead wire having a core wire portion with a predetermined length from which the sheath is removed is inserted from the insertion hole of the housing, and the push-type lever member is Also known is an energization method in which the wedge portion is moved upward and applied to the side surface of the core wire portion by the urging force of the coil spring, brought into contact with the projection of the connection terminal and energized to the connection terminal inserted into the board. It has become. (See Patent Document 2)

JP 2002-158048 A JP 2009-266694 A

  Among these documents, the pressure contact type in which the core wire part from which the wire coating has been removed is pressed onto the conductor from the upper surface by the cam surface of the rotating cam mechanism described in Patent Document 1 is fixed by pressure contact. If the thickness of the core wire part of the covered wire that is the part is not constant, that is, if the core wire part is thin, the pressure contact force is insufficient, and even if the wire does not fall out due to external factors such as vibration There is a risk of heat generation, and if the core part is thick, it is difficult to rotate the rotating cam mechanism to a predetermined angle sufficiently, the operation ends at an inappropriate rotation angle, and natural relaxation due to vibration etc. In any case, there is a problem that matching between the connector and the wire thickness is required.

  In the latter push type connector described in Patent Document 2, when the lead wire inserted from the insertion hole of the housing is moved with the push type lever member facing upward, the wedge portion is centered by the elastic force of the coil spring. In the case of this device, the core wire part is deformed in the direction of the side surface due to the elastic force of the coil spring so that it contacts the projection of the connection terminal. However, delicate adjustment of the lead wire thickness and the strength of the spring force of the coil spring is required, and when the spring force of the coil spring is weak, the pressing force applied to the core portion transmitted to the wedge portion If the coil spring spring force is too strong, the push-type lever member is difficult to smoothly perform the descent restoration operation. . In particular, in the case of the push-type connector of Patent Document 2, the wedge portion of the lever member is applied from the side surface to the core portion of the lead wire, and the core portion is deformed in the side surface direction. For this reason, when an external force is applied to the lead wire outside the housing, the core wire part is easily pulled out of the housing, and the danger that the energization is impossible cannot be eliminated.

  Therefore, the present invention overcomes the bottleneck of these prior arts, can be handled without being affected by the size of the electric wire, is hardly affected by external factors such as vibration, and is covered with the coating that is outside the housing. The present invention provides a connector for connecting an electric wire that is unlikely to be unintentionally pulled out even when an external force in the pulling direction is applied to the electric wire and can be used with confidence.

  The structure of the connector for electric wire connection according to claim 1 of the present invention taken to achieve the object will be described using the reference numerals used in the description of the embodiments. A housing body 1 having a contact space 11 that is slack and a plurality of electric wire insertion openings 13 provided in the front wall 14 of the contact space 11, and the contact space 11 is disposed along the inner surface of the front wall 14. The conductive plate 2 made of a highly conductive metal in which a corresponding number of wire passage holes 24 are formed at locations corresponding to the plurality of wire insertion openings 13 in the arrangement posture, and the lower end portion of the conductive wire bending action portion The metal spring 3 is formed on the conductive wire pressing portion 32 that is formed in the contact space 11 so as to face the current-carrying plate 2 in the contact space 11, and the back wall 41 along the rear wall 15 of the housing body 1. And so The operating body 4 includes a lid 42 connected to the upper portion and a spring fixing portion 43 that locks the locking portion 31 of the metal spring 3. The operating body 4 is placed in the contact space 11. At the same time, the conductive wire bending action portion 33 of the metal spring 3 is moved downward by pressing and moving, so that the core portion of the conductive wire protruding into the contact space 11 is bent and lowered into a substantially L shape. The core wire portion bent by the upper conductive wire pressing portion 32 is pressed against the energizing plate 2 and pressed.

  Moreover, the structure of the connector for electric wire connection of Claim 2 is a structure subordinate to the connector of Claim 1, Comprising: The electricity supply board 2 bends and forms in a U-shape by side view in the inner back part of the contact space 11 In this configuration, the rear rising wall 22 that is U-shaped in a side view is in contact with the portion 34 near the lower end of the metal spring 3.

  Furthermore, the configuration of the connector for connecting electric wires according to claim 3 is a configuration subordinate to the connector according to claim 1 or 2, wherein the metal spring 3 is disposed at the inner end portion of the contact space 11 at the free end portion 36. Is bent into a U-shape in a side view in a shape toward the current-carrying plate 2, and the U-shaped portion in a side view is formed in the conductive wire bending action portion 33, and the conductive wire bending action portion 33 and its free end portion 36. The conductive wire pressing portion 32 is formed between the two.

  In the wire connecting connector according to claim 1 of the present invention, the wire to be connected is inserted so as to protrude from the wire insertion opening into the internal space of the connector, and from the direction intersecting with the wire protruding direction. The operating body is inserted into the space, the direction of the inserted electric wire is bent and simultaneously pressed against the energizing plate, and this operation is performed on the common energizing plate for a plurality of electric wires. Therefore, even if an unexpected external force is applied to the covered electric wire connected to the outside of the connector due to the presence of the bent portion and the pressed portion of the electric wire as described above, the electric wire does not easily come out. It is expected to have a remarkable effect that the intended posture can be stably maintained and the accident can hardly occur and it can be used with peace of mind.

  Moreover, in the connector of Claim 2, the pressing force of the metal spring which presses an electric wire bending part with respect to an electricity supply board can be strengthened, and there exists an advantage which can perform stable electricity supply. .

  Further, in the connector according to claim 3, since the portion following the lower end bent in a U-shape of the metal spring is formed as the conductive wire pressing portion, the pressing force of the metal spring against the energizing plate is firmly maintained. There is an advantage that can be kept.

The perspective view which shows the connector of 1st Example. The front view of the connector. FIG. The right side view. The bottom view. AA line sectional view in FIG. BB sectional drawing in FIG. Sectional drawing of the AA line equivalent part of an action body. The rear view of an electricity supply board. CC sectional view taken on the line in FIG. Sectional drawing of the part equivalent to FIG. 6 which shows the connector of 2nd Example. Sectional drawing of FIG. 7 equivalent part of the figure. Sectional drawing of FIG. 8 equivalent part of the figure.

  The material for forming the housing body and the operating body of the connector according to the present invention is preferably a resin material having excellent insulating properties. In particular, it is preferable to use a transparent material that allows the internal state to be seen through. For example, a polycarbonate-based transparent or translucent resin is preferable. The current plate may be formed of a good conductive metal material, but is usually formed of a copper material. For example, it is used by applying tin plating to a copper plate. The metal spring is preferably a thin plate or wire made of a stainless spring material in that it has rust resistance in addition to elasticity.

  A first embodiment of the present invention will be described below with reference to the drawings. In the electric wire connecting connector shown in the embodiment, the housing main body 1 and the operating body 4 are formed by injection molding of a transparent polycarbonate resin as a whole.

  Thus, as shown in FIGS. 1 to 5, the housing body 1 is formed in a horizontally long rectangle in a plan view, and is a contact space that is bored inward with the opening 12 as an upper portion in the front view. 11 is formed in the rectangle long in the left-right direction. The contact space 11 is continuous with two electric wire insertion ports 13 and 13 formed in two electric wire insertion sleeves 15 and 15 respectively protruding in a left-right direction from the front wall 14 in a continuous manner. .

  As shown in FIGS. 6 and 7, a current plate 2 made of a copper plate is inserted into the contact space 11 along the inner surface of the front wall 14. As shown in FIGS. 9 and 10, the energization plate 2 has a lateral width corresponding to the contact space 11, and left and right by an intermediate cut 26 cut from the upper side to an appropriate depth leaving the lower end side portion. Independent vertical walls 21 and 21 are provided, and in an arrangement position in the contact space 11, electric wire passage holes 24 and 24 are respectively provided at positions corresponding to the electric wire guide holes 13 a formed in the inner back portion of the electric wire insertion port 13. It is formed. Further, as shown in FIG. 10, the lower end portion is formed in a U-shaped cross section, the rear wall 22 is formed on the back side, and the terminal portion 23 is bent toward the back side.

  As shown in FIGS. 6 and 8, the metal spring 3 is formed such that the lower end portion 35 is bent in a U shape and the entire shape is formed in a substantially J shape when viewed from the side. It is as the latching | locking part 31 to. Further, a front side portion of the lower end portion 35 bent in a U-shape is a conductive wire bending action portion 33, and an upper portion up to the free end portion 36 following this portion is a conductive wire pressing portion 32. On the other hand, a portion near the lower end on the back side, which is U-shaped, is used as a contact portion 34 with the energization plate 2.

  The actuating body 4 is a resin molded product similar to the housing body 1 and has side walls 44 and 44 on the left and right as shown in FIG. 2, and has a substantially square shape at the top thereof as shown in FIGS. The lid 42 is connected, and a rear wall 41 is provided on the rear side. The back wall 41 has a structure including a spring fixing portion 43 for locking the locking portion 31 of the metal spring 3 at a substantially middle portion in the vertical direction. As shown in FIGS. 2 and 3, the size in the left-right direction is such that two of them are aligned in the left-right direction and fit in the contact space 11 of the housing body 1. Further, the lid 42 is configured to be able to close the contact space 11 when the operating body 4 is inserted into the contact space 11.

  The wire connecting connector having such a structure is shown in a state in which the right operating body 4 is inserted into the contact space 11 of the housing body 1 as shown in FIGS. However, normally, only the lower part is inserted into the contact space 11 of the housing body 1 so that the two left and right bodies do not separate from each other as in the left working body 4 in FIG. It is as.

  In use, as shown in FIG. 6, first, the core wire c from which the sheath of the coated wire C is peeled off is inserted from the wire insertion port 13, and the energizing plate is inserted through the wire guide hole 13 a in the inner part. It is inserted into the contact space 11 through the two electric wire passage holes 24. In this state, the lid 42 is pressed to move the operating body 4 into the contact space 11. Subsequently, after inserting the electric wire from the other electric wire insertion port 13, the other operating body 4 is also pressed and moved into the contact space 11. As a result, the two left and right covered electric wires C can be electrically connected via the energizing plate 2.

  More specifically, the lower end portion 35 of the metal spring 3 and the conductive wire bending operation portion near the lower end portion 35 of the metal spring 3 are moved to the core wire c protruding into the contact space 11 by the downward movement of the metal spring 3 accompanying the lowering of the operating body 4. 33 is contacted, and the core wire c is forcibly bent and moved in the downward direction from the inner surface portion of the electric wire passage hole 24 of the energizing plate 2, that is, the conductor wire core portion c protruding into the contact space 11 is moved. At the same time as being lowered into a substantially L-shape, the core wire portion bent downward by the conductive wire pressing portion 32 following the upper portion of the bending action portion 33 is pressed against the energizing plate 2 and pressed. The metal spring 3 of this embodiment is such that the U-shaped lower end 35 enters the lower space 25 of the current-carrying plate 2 and the back-side contact portion 34 rises as shown in FIG. Contact with the rear wall 22 is prevented from moving to the back side, and the core portion of the conductive wire bent downward is strongly pressed against the current-carrying plate 2. Moreover, this pressing force is maintained.

  In the connector for electric wire connection having such a structure, the conductive wire 2 is inserted into the conductive wire 2 by inserting the operating body 4 into the contact space 11 and inserting the conductor c into the contact space 11. At the same time as the wire passage hole 24 is bent into a substantially L shape by the metal spring 3, the bent portion of the core c is pressed against the energizing plate 2 by the metal spring 3, so that the core c is folded. Nearly the entire bent portion can be reliably brought into contact with the current-carrying plate 2, and the presence of the bent corner portion does not easily move in the pulling direction even if an unexpected external force is applied to the conductive wire. The energized state can be maintained.

  The size of the connector for electric wire connection here depends on the thickness of the electric wire to be used. However, if the approximate dimensions are described, the outer diameter of the electric wire is 2.3 to 2.7 mm, the core As a wire corresponding to a wire having an outer diameter of 0.5 to 1.0 mm (including the case of a single wire), the vertical length from the upper surface of the working body to the bottom surface of the housing body in the front view is 12 to 16 mm. The width of the main body is about 9 to 13 mm, and the length of the housing main body including the wire insertion sleeve is about 8 to 12 mm. This numerical value is an approximate size for the electric wire used, and is not intended to be limited to this numerical value, nor is it intended to be bound.

  11 to 13 show the electric wire connecting connector of the second embodiment, mainly showing a modified embodiment of the metal spring. The metal spring 3 shown in the second embodiment is substantially J-shaped with the side view shape reversed in the front-rear direction as compared with the metal spring 3 shown in the side view J shape shown in the first embodiment. There is a difference. The metal spring 3 shown in the embodiment has such a shape, so that the lower end portion 35 of the metal spring 3 and the lower end portion of the core spring c projecting into the contact space 11 as shown in FIG. Conductive wire bending action portion 33 following 35 is brought into contact, and the core wire c is forcibly bent in the descending direction, that is, the core wire c is lowered while being bent into a substantially L shape. Subsequent to the action, substantially simultaneously, it is pressed against the current-carrying plate 2 by the conductive line pressing part 32 in the substantially vertical direction following the upper part of the bending action part 33.

  Simultaneously with this pressing action, the lower end portion 35 enters the lower space 25 of the energizing plate 2, and the abutting portion 34 following the back side of the lower end portion 35 contacts the rising rear wall 22 on the back side of the energizing plate 2. Thus, the transition to the back side is forcibly blocked, and the conductive wire pressing portion 32 is strongly pressed toward the energizing plate 2 side. The other points are the same as those of the wire connecting connector shown in the first embodiment.

  The connector for electric wire connection according to the present invention can be used with the rear wall 16 shown in FIG. Accordingly, the directional expression expressed as the upper part, the lower part, the front wall, the rear wall, etc. in this specification is an expression for clarifying the structure in relation to the embodiment drawing, and the absolute position of the connector. It is not a representation of the relationship.

  The embodiments considered to be representative of the present invention have been described above. However, the present invention is not necessarily limited to the structures shown as the embodiments, and satisfies the above-described configuration requirements according to the present invention. The above-described object can be achieved, and can be implemented with appropriate modifications within the range having effects.

  The connector for electric wire connection according to the present invention allows the connection electric wire to be easily pulled out even if an unexpected external force is applied to the covered electric wire outside the connector by a simple operation of inserting the electric wire into the connector and pushing in the operating body. Since it can be used with peace of mind, it has the potential to spread widely.

DESCRIPTION OF SYMBOLS 1 Housing main body 11 Contact space 12 Opening part 13 Electric wire insertion port 14 Front wall 15 Rear wall 2 Current supply plate 22 Standing rear wall 24 Electric wire passage hole 3 Metal spring 31 Engagement part 32 Conductive wire press part 33 Conductive wire bending action part 34 Near end portion 36 Free end portion 4 Actuator 41 Back wall 42 Lid 43 Spring fixing portion

Claims (3)

A housing comprising a contact space (11) bored inward from the opening (12) and a plurality of electric wire insertion openings (13) provided in a front wall (14) of the contact space (11) The body (1),
It is arranged in the contact space (11) along the inner surface of the front wall (14), and a corresponding number of wire passage holes (24) are formed at locations corresponding to the plurality of wire insertion ports (13) in the arrangement posture. Current conducting plate (2) made of a good conductor metal,
A lower end side portion is formed in the conductive wire bending action portion (33), and an upper portion thereof is formed in the conductive wire pressing portion (32) disposed to face the energizing plate (2) in the contact space (11). Metal spring (3),
The rear wall (41) along the rear wall (15) of the housing body (1), the lid (42) connected to the upper portion thereof, and the locking portion (31) of the metal spring (3) are locked. An actuating body (4) having a spring fixing part (43)
Consists of
By pressing and moving the operating body (4) into the contact space (11), the conductive wire bending action part (33) of the metal spring (3) is moved down to contact space (11). The core portion of the conductive wire protruding inward is bent and lowered into a substantially L shape, and at the same time, the conductive wire pressing portion (32) on the upper portion presses and presses the bent core portion on the energizing plate (2). A connector for connecting electrical wires as a structure. The current plate (2) is bent into a U-shape when viewed from the side at the inner back of the contact space (11), and the portion of the U-shape when viewed from the side is near the lower end (34) and the lower end of the metal spring (3) (34) The electric wire connecting connector according to claim 1, wherein the electric wire connecting connector is configured to contact with each other. The metal spring (3) is bent and formed in a U shape in a side view so that the free end (36) is directed toward the energizing plate (2) in the inner part of the contact space (11). The conductive wire bending action portion (33) is formed at a conductive wire pressing portion (32) between the conductive wire bending action portion (33) and its free end (36). Or the connector for electric wire connection of 2.

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