JP5717292B2 - Conductor connector - Google Patents

Description

  The present invention relates to a conductor connector used for connecting a power supply bypass cable (hereinafter referred to as “power cable”).

  In order to connect a power cable or the like, a female connector as one conductor connector and a male connector as the other conductor connector are fitted. That is, the female connector is fixed to one end of the two power cables, and the male connector is fixed to the other end, and the female connector and the male connector are fitted to each other between the power cables. The continuity is taken.

  Here, in the conventional female connector 51, as shown in FIG. 12, an insertion hole 53 a into which the male connector 52 is inserted is formed in an axial direction from one end of the hollow cylindrical body 53 having conductivity. Are formed along. An annular groove 53b is formed on the inner peripheral surface of the insertion hole 53a, and the inserted male connector 52 is reliably maintained in the groove 53b by the elastic force acting in the radial direction. One or a plurality of contacts 54 are fitted. As shown in FIG. 13, the contact 54 protrudes radially inward from the groove 53b.

  In addition, as a technique regarding a conductor connector, the thing of Unexamined-Japanese-Patent No. 2000-133302 and Unexamined-Japanese-Patent No. 4-124762 is known, for example.

JP 2000-133092 A Japanese Utility Model Publication No. 4-124762

  However, in the conventional structure, since the contact protrudes inward, the leading end of the male connector to be inserted is caught and lifted up and sometimes comes off the groove.

  As described above, since the contact is for maintaining contact with the inserted male connector, if the contact is removed from the groove, the desired contact maintaining force cannot be obtained, and the connection is made. Reliability will be impaired.

  The present invention has been made from the above-described technical background, and an object thereof is to provide a conductor connector that can prevent a contact from coming off from a groove.

In order to solve the above problems, the conductor connector according to the first aspect of the present invention is a conductive hollow body in which an insertion hole into which a mating fitting body is inserted is formed from one end portion in the axial direction. And a groove formed along the circumferential direction on the inner peripheral surface of the insertion hole, and the contact with the mating fitting inserted and protruded radially inward from the groove is inserted into the groove. An annular contactor that is maintained by an elastic force acting on the groove portion, and two edge portions of the groove portion that are opposed to each other in the axial direction of the insertion hole toward the inside of the groove portion, and are fitted into the groove portion. A pair of protrusions that interfere when the contact moves in a direction away from the groove, and the groove is fitted into the insertion hole and arranged with an interval in the axial direction of the insertion hole, A plurality of annular portions sandwiching the contact Is formed by the projecting portion is formed in the annular member, it is characterized.

According to a second aspect of the present invention, in the first aspect of the present invention, the end of the insertion hole has a direction in which the annular member located on the end side is dropped from the insertion hole. A restriction member for restricting movement is provided.

According to a third aspect of the present invention, in the invention of the first or second aspect , the contact is formed between two annular plate portions formed at both ends in the width direction and the plate portion. And a contact portion that protrudes from the groove and contacts the mating fitting body, wherein the plate portion is formed continuously in the circumferential direction.

  According to the first aspect of the present invention, when the contact fitted in the groove moves in the direction in which the contact is removed, it interferes with the protrusion, so that it is possible to prevent the contact from coming off the groove.

Furthermore, according to the first aspect of the present invention, even if it is difficult to process the groove directly in the insertion hole, the projecting portion can be obtained by fitting the annular member into the insertion hole so as to sandwich the contact. It is possible to easily form a groove with a gap.

According to invention of Claim 2, it can prevent that an annular member and a contactor drop | omit from an insertion hole.

According to the third aspect of the present invention, the contact is more unlikely to come off from the groove.

It is explanatory drawing which shows the electric wire replacement work as an example to which the female connector which is one embodiment of this invention is applied. It is a disassembled perspective view of the female connector which is one embodiment of this invention. It is sectional drawing which shows the hollow body which comprises the female connector of FIG. It is a perspective view which fractures | ruptures and shows the principal part of the female connector of FIG. It is sectional drawing of the principal part of the female connector of FIG. It is the side view which looked at the female connector of FIG. 2 from the end surface of one side. It is sectional drawing which shows the 1st ring engage | inserted by the female connector of FIG. It is sectional drawing which shows the 2nd ring inserted by the female connector of FIG. It is sectional drawing which shows the 3rd ring inserted by the female connector of FIG. It is explanatory drawing which shows the groove part in the female connector of FIG. 2, and the contactor engage | inserted by the said groove part. It is explanatory drawing which shows the relationship between the groove part in the female connector as a modification of one embodiment of this invention, and the contactor fitted by the said groove part. It is explanatory drawing which shows the conventional female connector and male connector. It is explanatory drawing which shows the groove part in the conventional female connector, and the contactor inserted by the said groove part.

Hereinafter, an embodiment as an example of the present invention will be described in detail with reference to the drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiment, and the repetitive description thereof will be omitted.

  The conductor connector of the present embodiment is a female connector as one conductor connector for connecting a power cable or the like, and is fitted with a male connector which is the other conductor connector, so that two Conduction between the power cables is taken.

  For example, as shown in FIG. 1, such a conductor connector is a construction cable for performing temporary power transmission by bypassing work sections such as electric pole rebuilding and wire replacement work, and working in a non-voltage state. Used as a connection means.

  That is, in FIG. 1, when the electric wire 41 stretched on the utility pole 40 is to be replaced, the clamps 42 are attached to both ends of the electric wire 41 in the section (working section) to be replaced, and the construction cable 43 for temporary power transmission is connected. . At this time, the male connector 44 is attached to the construction cable 43 side, and this is fitted with the female connector 10 to which the intermediate cable 45 is attached to construct a bypass path.

  Therefore, the female connector 10 of the present embodiment has a diameter of about 20 mm, for example, and a bypass path in which the female connector 10 is used has, for example, a voltage of about 600 V to 7,000 V called a high voltage, and even a special voltage. A voltage of about 22 kV called high voltage is applied.

  As shown in FIG. 2 and FIG. 3, the female connector 10 (conductor connector) of the present embodiment has a cylindrical hollow body 11 having conductivity, and one end (in FIG. 3). An insertion hole 12 into which a male connector (not shown) (not shown) is inserted is formed in the axial direction from the right end). When the male connector is inserted into the insertion hole 12 and the male connector and the female connector 10 are fitted, the central axes of both are coaxial with each other. In addition, in this Embodiment, although the hollow body 11 becomes a cylindrical shape, if it is a hollow body in which the insertion hole 12 was formed, it is sufficient and it is not limited to a cylindrical shape.

  A cable fixing hole 13 for fixing a power cable (not shown) is formed in the axial direction from the other end (the left end in FIG. 3) of the female connector 10. The insertion hole 12 and the cable fixing hole 13 described above communicate with each other via an air vent hole 14. In addition, the knurling process (part shown by the code | symbol 15) for the purpose of the slip prevention at the time of handling etc. is given to the outer peripheral center part of the female connector 10. FIG.

  The insertion hole 12 has a diameter that decreases from the end toward the inside through a step, and forms a first inner diameter portion 12a, a second inner diameter portion 12b, a third inner diameter portion 12c, and a fourth inner diameter portion 12d. ing. The male connector is inserted to the position of the first inner diameter portion 12a from the end, the second inner diameter portion 12b adjacent to the first inner diameter portion 12a, and the third inner diameter portion 12c adjacent to the second inner diameter portion 12b. The

  As shown in FIGS. 2 and 4, a plurality of rings 16 that are annular members are fitted into the insertion holes 12. More specifically, a first ring 16a (annular member), a second ring 16b (annular member), and a third ring 16c (annular member) are fitted inward from the end portion. These three rings 16 are arranged so as to be spaced apart from each other in the axial direction by sandwiching an annular contact 17. And the groove part 18 formed along the circumferential direction in the inner peripheral surface of the insertion hole 12 is comprised by the clearance gap of the ring 16 for pinching the contact 17.

  As shown in the figure, the first ring 16a is fitted into the first inner diameter portion 12a, and the second ring 16b, the third ring and the two contacts 17 are fitted into the second inner diameter portion 12b.

  In the present embodiment, two grooves 18 are formed by three rings 16 that are spaced apart from each other, and two contacts 17 are fitted in the respective grooves 18. 16 and the groove part 18 and the number of contacts 17 fitted therein can be freely set, and are not limited to the number shown in the present embodiment.

  As shown in FIGS. 2 and 4 to 6, the first ring 16 a located on the end side of the insertion hole 12 is formed with a notch 16 a-1 in a part in the radial direction. Then, a set screw 19 (regulating member) for restricting the movement of the first ring 16a in the direction of dropping from the insertion hole 12 is screwed to both so as to straddle the notch 16a-1 and the hollow body 11. Has been. This prevents the ring 16 and the contact 17 from falling out of the insertion hole 12.

  The contact 17 is made of a metal having conductivity, and is used to establish electrical continuity between the inserted male connector and the hollow body 11, and further, elastically acts on the inserted male connector in the radial direction. It is for holding by force and maintaining contact securely.

  That is, the contact 17 is arranged so as to straddle between the two plate portions 17a formed at both ends in the width direction and straddle between these plate portions 17a and is in contact with the male connector. It is comprised with the part 17b. Further, the contact portion 17b is bent so as to have a thickness in the radial direction. Therefore, when such a contact 17 is sandwiched between the rings 16, that is, when the contact 17 is fitted into a groove portion 18 formed by a gap between the rings 16, the contact 17 is more radial than the inner peripheral surface of the ring 16. It protrudes inward, that is, radially inward from the groove 18.

  When the contact 17 protrudes inward in the radial direction and is fitted in the groove 18, the contact 17 b is expanded by the inserted male connector and pressed against the inner wall of the insertion hole 12. Thereby, an elastic force is generated in the radial direction in the contact 17, and the male connector is tightened by the elastic force.

  As shown in FIGS. 7 to 9, a protrusion 20 is formed on the ring 16 sandwiching the contact 17.

  That is, as shown in FIG. 7, the first ring 16 a located at the end of the insertion hole 12 is formed with a protrusion 20 on the side where the second ring 16 b forms the groove 18. Further, as shown in FIG. 8, the second ring 16b has protrusions 20 formed on the side where the first ring 16a forms the groove 18 and the side where the third ring 16c forms the groove 18, that is, on both sides. Has been. As shown in FIG. 9, the third ring 16c is formed with a projection 20 on the side where the groove 18 is formed with the second ring 16b.

  These protrusions 20 are formed so as to extend in the axial direction of the insertion hole 12 in which the ring 16 is fitted. When this is viewed from the groove portion 18 formed by the two rings 16 arranged at an interval, the projection portion 20 is formed from the two edge portions of the groove portion 18 facing each other in the axial direction of the insertion hole 12. It consists of a pair formed toward the inside. Then, when the contact 17 fitted in the groove 18 moves in a direction away from the groove 18, the contact 17 interferes with the protrusion 20.

  In the contact 54 of the conventional female connector 51 described with reference to FIGS. 12 and 13, the leg corresponding to the plate portion 17 a of the present embodiment is provided to project the contact portion 54 b radially inward from the groove portion 53 b. The part 54a must be bent. Therefore, the legs 54a cannot be continuous in the circumferential direction in order to form a folding margin, and become comb-like.

  On the other hand, in the contact 17 of the female connector 10 of the present embodiment, the contact portion 17b is formed to be bent so as to have a thickness in the radial direction, whereby the contact 17 is fitted into the groove portion 18. Since it protrudes radially inward from the groove portion 18 when it hits. The plate portion 17a is continuous in the circumferential direction.

  As a result, the entire circumference of the plate portion 17a comes into contact with the projection portion 20 (that is, intermittently as in the case where the comb-like leg portion 54a formed on the contact 54 of the conventional female connector 51 is applied. However, the contact 17 is more unlikely to be detached from the groove 18 because the contact is made continuously over the entire circumference.

  Next, the contact 17 in the female connector 10 having such a configuration will be described with reference to FIG.

  When the male connector is inserted into the insertion hole 12 from the end of the female connector 10, the male connector enters in the axial direction while expanding the contact 17 fitted in the groove 18. The contact portion 17 b of the contact 17 is pressed against the inner wall of the insertion hole 12 to generate an elastic force in the radial direction, whereby the male connector is tightened and held in the insertion hole 12.

  At this time, when the tip of the male connector entering the insertion hole 12 is caught by the contact 17 projecting radially inward, and a force that moves in a direction away from the groove 18 acts on the contact 17. As shown in FIG. 10, the contact 17 interferes with the protrusion 20, and more specifically, the plate 17a of the contact 17 interferes with the protrusion 20, and does not move any further.

  Thereby, the contact 17 is prevented from coming off from the groove 18. Therefore, the contact 17 reliably stays in the groove 18 and maintains contact with the male connector with elastic force. Therefore, the desired contact maintaining force can be stably obtained, and connection reliability can be ensured.

  In the above description, it is assumed that it is difficult to directly process the groove 18 having the protrusion 20 in the insertion hole 12 of the hollow body 11 (for example, the diameter of the insertion hole 12 is 30 mm or less). By inserting a plurality of rings 16 into the insertion hole 12 so as to sandwich the contact 17, the groove portion 18 having the protrusion 20 is easily formed.

  However, in the case where the diameter of the insertion hole 12 is large and the groove 18 having the protrusion 20 can be directly processed, the protrusion 16 is inserted into the insertion hole 12 as shown in FIG. A groove 18 with 20 may be formed.

  Although the invention made by the present inventor has been specifically described based on the embodiment, the embodiment disclosed in this specification is an example in all respects and is limited to the disclosed technology. Should not be considered. That is, the technical scope of the present invention should not be construed restrictively based on the description in the above-described embodiment, but should be construed according to the description of the scope of claims. All modifications are included without departing from the technical scope equivalent to the described technique and the gist of the claims.

  The conductor connector of the present invention is not limited to the connection of a power cable or the like, but is applied to various conductor connectors in which two members are connected by inserting a mating fitting body. Can do.

10 female connector 11 hollow body 12 insertion hole 12a first inner diameter portion 12b second inner diameter portion 12c third inner diameter portion 12d fourth inner diameter portion 13 cable fixing hole 14 air vent hole 16 ring 16a first ring 16a-1 notch portion 16b first 2 ring 16c 3rd ring 17 contact 17a plate part 17b contact part 18 groove part 19 set screw 20 projection part 51 female connector 52 male connector 53 hollow body 53a insertion hole 53b groove part 54 contactor

Claims (3)

A hollow body having conductivity in which an insertion hole into which the mating fitting body is inserted is formed in the axial direction from one end; and
A groove formed along the circumferential direction on the inner peripheral surface of the insertion hole;
An annular contact that protrudes radially inward from the groove and is fitted into the groove and maintains contact with the inserted mating fitting body with an elastic force acting in the radial direction;
Interference occurs when the contacts formed in the groove portion from two edge portions facing the axial direction of the insertion hole toward the inside of the groove portion and moved into the groove portion move in a direction away from the groove portion. A pair of protrusions that
Have
The groove portion is inserted into the insertion hole and arranged with an interval in the axial direction of the insertion hole, and is formed by a plurality of annular members sandwiching the contact,
The protrusion is formed on the annular member.
A conductor connector characterized by that. At the end of the insertion hole, a regulating member is provided that regulates movement in the direction of dropping from the insertion hole with respect to the annular member located on the end side.
The conductor connector according to claim 1. The contact is
Two annular plate portions formed at both ends in the width direction, and a contact portion that is formed between the plate portions and protrudes from the groove portion to contact the mating fitting body,
The plate portion is formed continuously in the circumferential direction,
The conductor connector according to claim 1 or 2 , characterized in that

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