JP2012001095A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector which enables power lines to be connected to respective terminals without causing interference, and consequently has a small dimension in a front-and-rear direction and is compact.SOLUTION: The plurality of terminals 16b to 16c to be electrically connected to a conductor of an insulated trolley line 2 are disposed in a lateral direction orthogonal to the longitudinal direction of the conductor. The connecting portions 39 to the power lines of the terminals 16b to 16c adjoining in the lateral direction are disposed as shifted in the longitudinal direction. Thereby, the connector is provided which enables the power lines to be connected to the respective terminals without causing interference and consequently has a small dimension in a front-and-rear direction and is compact.

Description

  The present invention relates to a connector for electrically connecting an insulated trolley wire and a power line.

  Conventionally, as shown in FIG. 16, an insulated trolley wire 2 is used to supply power to a mobile device 6 such as a hoist crane via a current collector 11.

  For example, Patent Literature 1 discloses a connector in which a plurality of terminals for electrically connecting a conductor of an insulated trolley wire and a power line are provided in the horizontal direction.

JP 2001-334847 A

  By the way, the terminal of patent document 1 is provided with two or more by the horizontal direction at the same pitch as a conductor in the bottom face side of a connector. However, when the conductor pitch is small, the power lines connected to the power line connecting portions of the terminals adjacent in the horizontal direction interfere with each other, causing a short circuit, making it difficult to connect the power lines to the terminals, or connecting the power lines to the terminals. There is a risk that it may not be possible to connect to the network.

  Here, each terminal of Patent Document 1 is arranged with its position shifted in the front-rear direction parallel to the longitudinal direction of the conductor, and it can be said that the interference between the power lines is less likely to occur as compared with the case where the terminals are not shifted. . However, when connecting power lines with large diameters, the power lines may still interfere with each other, and particularly when the power lines are pulled out from the terminals in the front-rear direction, the power lines are likely to interfere with each other. Moreover, if the space | interval of the front-back direction of the terminal adjacent to a horizontal direction is enlarged, the interference of the said power lines will become difficult to produce. However, in this case, the front / rear dimension of the connector is increased, leading to an increase in size, and the increase of the front / rear dimension of the connector in this way is the length of the insulated trolley wire laid between the construction materials, that is, It also becomes a factor which narrows the movement range of mobile equipment.

  This invention is made | formed in view of the said situation, Comprising: It makes it a subject to provide a small connector with a small front-back dimension which can connect a power line to each terminal without interference.

  In order to solve the above-described problems, the connector of the present invention is provided with a plurality of terminals that are electrically connected to the conductor of the insulated trolley wire in the lateral direction perpendicular to the longitudinal direction of the conductor in plan view, and adjacent to the lateral direction The power line connecting portions of the terminals are arranged so as to be shifted in the vertical direction.

  Moreover, it is preferable that the power line connection parts which the terminal adjacent to the said horizontal direction has are shifted | deviated and arrange | positioned in the longitudinal direction of the said conductor.

  Moreover, it is preferable that the said power line connection part is arrange | positioned outside a conductor in the longitudinal direction of the said conductor.

  In the present invention, a power connector can be connected to each terminal without interference, and a small connector with small front and rear dimensions can be provided.

It is a side view which shows the state which connected the power line to the main body of the connector of embodiment of this invention. It is a perspective view which shows the state which built the insulated trolley wire using the connector. The main body of a connector is shown, (a) is the perspective view seen from the bottom face side, (b) is a horizontal sectional view. It is a perspective view of a fixing member. It is a perspective view which shows a mode that the insulation trolley wire is inserted in a main body. The state which connected the insulated trolley wire to the main body is shown, (a) is a bottom view, (b) is the perspective view seen from the lower side. It is the perspective view seen from the upper side which shows the state which connected the power line to the terminal of the main body. It is an exploded perspective view of an insulating trolley wire, a fixing member provided with a pressing member, and a terminal. It is a rear view which shows the connector of the construction state which abbreviate | omitted illustration of the long volt | bolt and the cover. It is a perspective view which shows the state which hold | maintained the insulated trolley wire by the main body. It is a notch sectional view when an insulation trolley wire is held with a main part. It is a perspective view which shows the mode before the process of the edge part of an insulated trolley wire, and a process after a process. It is a perspective view which shows the state which attached all the terminals with the electric wire connection part facing the same direction. It is a side view which shows a mode that the electric power line was pulled out from the terminal to the vertical direction. It is principal part sectional drawing of a connector. It is a perspective view which shows the construction state of the conventional connector.

  The present invention will be described with reference to the accompanying drawings. In the following, description may be made with reference to FIG. In the following description of each configuration, the direction in the construction state will be described as a reference, and the longitudinal direction of the insulating trolley wire 2 will be described as the front-rear direction, and the width direction of the insulating trolley wire 2 will be described as the left-right direction (lateral direction).

  The connector 1 of this embodiment connects the insulated trolley wire 2 to the power line 3 consisting of a cable as shown in FIG. 2, and is used in a power supply system that supplies power to the mobile device 6 (see FIG. 16).

  As shown in FIG. 16, the insulated trolley wire 2 supplies power to the mobile device 6 formed of a hoist crane via the current collector 11. Note that the power supply target of the insulated trolley wire 2 is not limited to the hoist crane, and the present invention may be applied to other fields such as an automatic warehouse and a multistory parking lot.

  The insulating trolley wire 2 includes a plurality of strip-shaped conductors 8 whose thickness direction is the vertical direction as shown in the upper diagram of FIG. 12 and a resin insulating material 9 that houses these conductors 8.

  The insulating material 9 is formed with a plurality of substantially U-shaped sheath portions 10 a to 10 c that open downward (three rows in the illustrated example) side by side, and each sheath portion 10 a to 10 c extends in the longitudinal direction of the insulating material 9. Is formed.

  A conductor 8 is provided in the longitudinal direction in a state where the upper surface is in contact with the bottom 37 of the sheath portions 10a to 10c in a groove opened downward in each sheath portion 10a to 10c. Each conductor 8 is provided at a constant pitch in the left-right direction, and the central portion in the width direction of the lower surface is an exposed surface exposed from the groove opening 7 of the sheath portions 10a to 10c. Hereinafter, this exposed surface is referred to as a conductor exposed surface 12.

  The connector 1 has a function of holding the end of the insulated trolley wire 2 in addition to the function of electrically connecting the insulated trolley wire 2 to the power line 3, and is used as an insulator as shown in FIG.

  The connector 1 includes a main body 14 and a cover 18 attached to the main body 14. As shown in FIG. 10, the main body 14 is provided with fixing members 15a to 15c for the corresponding sheath portions 10a to 10c, and the fixing members 15a to 15c are provided with pressing members 17 made of bolts. The main body 14 is provided with terminals 16a to 16c for each of the fixing members 15a to 15c, that is, a plurality of terminals 16a to 16c are provided in the left-right direction.

  As shown in FIG. 5, the main body 14 is formed with an insertion recess 19 that opens to the front on the insulating trolley wire 2 side. The end of the insulating trolley wire 2 is inserted into the insertion recess 19 from the front.

  As shown in FIG. 3B, the portion of the insertion recess 19 excluding the front end is composed of a plurality of holes 22a to 22c formed side by side. The holes 22a to 22c are formed in the same number as the sheath portions 10a to 10c of the insulating trolley wire 2, and the corresponding sheath portions 10a to 10c of the insulating trolley wire 2 inserted into the insertion recess 19 are arranged in the holes 22a to 22c. Is done.

  A part of each hole 22a-22c in the front-rear direction is a fixing member arrangement part 23a-23c having a larger cross-sectional area than the other part. Portions adjacent to the front of the fixing member arrangement portions 23a to 23c of the holes 22a to 22c are referred to as front hole portions 25a to 25c. Steps are formed between the inner peripheral surfaces of the fixing member arrangement portions 23a to 23c in the holes 22a to 22c and the inner peripheral surfaces of the front hole portions 25a to 25c that are slightly smaller than the inner peripheral surfaces. The steps over the front edges of the fixing member placement portions 23a to 23c face the rear side, that is, the outside in the longitudinal direction of the sheath portions 10a to 10c, and constitute the receiving surface portion 26 with which the front end surfaces of the fixing members 15a to 15c abut. . Moreover, the tool insertion port 28 is formed in the lower surface of each fixing member arrangement | positioning part 23a-23c.

  Among the fixing member arrangement portions 23a to 23c, the fixing member arrangement portions 23a and 23c located on both outer sides in the left-right direction are located at the rear ends of the holes 22a and 22c and are formed at the same position in the front-rear direction. Terminal outlets 29a and 29c are formed on the rear surfaces of the fixing member arrangement portions 23a and 23c, respectively.

  The fixing member arrangement part 23b located at the center in the left-right direction is located in the middle of the hole 22b in the front-rear direction, and is arranged in front of the fixing member arrangement parts 23a and 23c. If a portion of the hole 22b adjacent to the rear of the fixing member arrangement portion 23b is a rear hole portion 27, a terminal outlet port 29b is formed on the lower surface of the rear hole portion 27. The rear end of the hole 22 b is closed by a contact wall 30 formed in the main body 14.

  The fixing members 15a to 15c are placed on the left and right side edges of the tool insertion port 28 in the state where the fixing members 15a to 15c are positioned in the left and right directions, and the front end surfaces of the fixing members 15a to 15c are illustrated in FIG. 11 is opposed to the receiving surface portion 26.

  Each of the fixing members 15a to 15c is made of metal, and is formed in a vertically long rectangular tube opening in the front-rear direction as shown in FIG. 4, and includes upper and lower pieces 35a and 35b and left and right pieces 35c and 35d. . A plurality of screw holes 31 penetrating vertically are formed in the lower piece portion 35b of each fixing member 15a to 15c in the front-rear direction.

  As shown in FIG. 15, the pressing member 17 is screwed into the screw holes 31 of the fixing members 15 a to 15 c from below via a spring washer 44, and the head 43 of the pressing member 17 is lowered downward via the tool insertion port 28. Exposed.

  A central portion in the width direction of the upper piece portion 35a of the fixing members 15a to 15c is a contact portion 36 protruding downward. That is, the lower piece portion 35 b described above constitutes the facing portion 20 that faces the contact portion 36, and the facing portion 20 is formed integrally with the contact portion 36. Although the fixing members 15a to 15c of the present embodiment have a rectangular frame shape in cross section, the fixing members 15a to 15c include an abutting portion 36 with which the sheath portions 10a to 10c are abutted and a lower piece portion 35 opposite to the abutting portion 36. What is necessary is just to be integrally formed, for example, a cross-sectional U-shape may be sufficient.

  A plurality of metal projections 32 projecting downward are provided on the lower surface of the contact portion 36 in the front-rear direction, and these projections 32 are all provided at positions facing the screw holes 31. Each protrusion 32 is formed in a conical shape with a sharp tip.

  Each terminal 16a-16c is comprised with the terminal board of the same same shape. As shown in FIG. 8, each of the terminals 16 a to 16 c is formed of an L-shaped terminal plate whose thickness direction is the left-right direction, and constitutes a contact portion 38 in which one piece protruding forward contacts the conductor exposed surface 12. The other piece protruding at a right angle from the rear end portion of the contact portion 38 constitutes a power line connecting portion 39. A hole 42 for a bolt 41 for attaching an end of the power line 3 is opened in the power line connecting portion 39.

  As shown in FIG. 3, insertion holes 45 penetrating in the front-rear direction are formed on both sides of the insertion recess 19 of the main body 14. As shown in FIG. 6, long long bolts 46 are inserted in the respective insertion holes 45 in the front and rear direction, and each long bolt 46 is fixed to the main body 14 by sandwiching the main body 14 with two nuts 47 provided on the front side thereof. Is done.

  In order to hold the end of the insulated trolley wire 2 with the connector 1, for example, the following is performed.

  First, the fixing members 15a to 15c in which the contact portions 38 of the terminals 16a to 16c are inserted from the rear are arranged in the corresponding fixing member arrangement portions 23a to 23c. At this time, the contact portions 38 of the terminals 16a to 16c are arranged between the contact portions 36 of the fixing members 15a to 15c and the tip surfaces of the pressing members 17 screwed into the screw holes 31 of the fixing members 15a to 15c. . Further, the terminals 16a and 16c lead out the power line connecting portion 39 side from the terminal outlets 29a and 29c to the rear of the main body 14 so that the power line connecting portion 39 protrudes upward or downward. Further, the terminal 16b causes the power line connecting portion 39 to protrude downward from the terminal 14 from the terminal outlet 29b.

  Next, the end of the insulating trolley wire 2 is inserted into the insertion recess 19 of the main body 14 as shown in FIG. The insulated trolley wire 2 has portions between the sheath portions 10a to 10c at the end of the insulated trolley wire 2 so that the sheath portions 10a to 10c can be inserted into the corresponding holes 22a to 22c in advance as shown in the lower diagram of FIG. It has been excised. The insulated trolley wire 2 is inserted into the insertion recess 19 until the rear end surface of the sheath portion 10b comes into contact with the front surface of the contact wall 30 as shown in FIG. 11, whereby the sheath portions 10a to 10c and the conductor 8 are fixed to each other. It arrange | positions between the contact part 38 and the contact part 36 which are arrange | positioned in the members 15a-15c.

  Next, the head 43 of the pressing member 17 (bolt) screwed into each screw hole 31 of the fixing members 15a to 15c is rotated in the direction in which the pressing member 17 approaches the contact portion 38 side, and each pressing is performed as shown in FIG. The contact portion 38 is pressed toward the conductor 8 at the tip surface of the member 17. The operation of the pressing member 17 is performed using a tool such as a wrench in which the head 43 is inserted from the tool insertion port 28.

  The operation of screwing the pressing member 17 is performed until the spring washer 44 compressed between the head 43 of the pressing member 17 and the lower surface of the facing portion 20 becomes flat as shown in FIG. 17 is screwed in a predetermined amount.

  When the pressing member 17 is screwed in this way, the contact portion 38 is pressed against the conductor exposed surface 12, and the bottom portions of the sheath portions 10a to 10c pressed by the contact portion 38 via the conductor 8 toward the contact portion 36. 37 contacts the contact portion 36 of the fixing members 15a to 15c. Further, each protrusion 32 provided on the contact part 36 penetrates the conductor 8 by penetrating the bottom part 37 of the resin sheath parts 10a to 10c.

  As described above, the contact portions 38 of the terminals 16a to 16c are sandwiched and fixed between the corresponding conductors 8 and the front end surfaces of the pressing members 17 provided on the fixing members 15a to 15c, and correspond to the terminals 16a to 16c. The conductor 8 is electrically connected. Further, the conductor 8 and the bottom portion 37 of the sheath portions 10a to 10c are sandwiched and fixed between the contact portion 38 and the contact portion 36. As a result, the end portion of the insulated trolley wire 2 is fixed to the main body 14. .

  As described above, in this embodiment, the contact portion 38 is brought into contact with the conductor exposed surface 12 exposed from the groove opening 7 of the insulating trolley wire 2, thereby electrically connecting the insulating trolley wire 2 to the terminals 16 a to 16 c. For this reason, it is not necessary to perform the operation | work which strips the conductor 8 of the insulated trolley wire 2, and the insulated trolley wire 2 can be electrically connected to the terminals 16a-16c.

  The main body 14 holding the end portion of the insulating trolley wire 2 is connected in a state of being pulled to the construction material 5 such as a beam using a coil spring 13 as shown in FIG. In order to connect the main body 14 to the construction material 5, the rear side of the long bolt 46 fixed on both sides of the main body 14 is passed through the construction material 5 such as a beam, and the rear portion of the long bolt 46 from the construction material 5. Is passed through the coil spring 13. A nut 48 is attached to each long bolt 46, and the front end of the coil spring 13 is connected to the rear surface of the construction material 5 in a state where the rear end of the coil spring 13 is in contact with the nut 48 provided on the long bolt 46. Elastically contact with. Thereby, the main body 14 and the insulated trolley wire 2 held by the main body 14 are pulled to the rear side which is the construction material 5 side. Similarly, the main body 14 provided at the opposite end of the insulated trolley wire 2 is also connected to the construction material 5 so that the insulation trolley wire 2 is installed between the construction materials 5 in a state where the insulation trolley wire 2 is pulled on both sides in the longitudinal direction. Is done. The tension of the insulated trolley wire 2 after installation is adjusted by moving the nut 48 in the front-rear direction with respect to each long bolt 46 to adjust the compression amount of the coil spring 13.

  Thus, in the state in which the insulated trolley wire 2 is installed, the tension applied to the sheath portions 10a to 10c is received by the receiving surface portion 26 in contact with the front end surfaces of the respective fixing members 15a to 15c.

  Then, after the insulated trolley wire 2 is installed as described above, the connection terminal 40 provided at the end of the power line 3 is connected to the power line connection portion 39 of each of the terminals 16 a to 16 c protruding from the main body 14. For this connection, the connection terminal 40 is applied to the side surface of the power line connection portion 39 protruding upward or downward from the main body 14, and the bolt 41 is passed through the hole 42 of the connection terminal 40 and the power line connection portion 39, and is crimped by the bolt 41. Done in

  After the power line 3 is connected to the power line connecting portion 39 of each of the terminals 16a to 16c as described above, the cover 18 is detachably attached to the main body 14 as shown in FIG. The cover 18 covers the terminals 16a to 16c, the fixing members 15a to 15c, the portions of the bolts 17 exposed from the main body 14, and the connection terminals 40 of the power line 3 connected to the terminals 16a to 16c.

  Here, the protruding direction of the power line connecting portion 39 of each terminal 16a, 16c of the present embodiment is selected to be either up or down by changing the direction when the terminals 16a, 16c are electrically connected to the insulated trolley wire 2. Can do. Therefore, as shown in FIG. 1, the power line connecting portions 39 of the terminals 16a and 16c on both sides can be protruded upward, and the power line connecting portion 39 of the central terminal 16b can be protruded downward.

  In FIG. 1, the power line connecting portions 39 of the terminals 16a and 16c are arranged at the same position in the vertical direction, and the power line connecting portions 39 of the terminals 16b are arranged below the power line connecting portions 39 of the terminals 16a and 16c. That is, the power line connecting portions 39 of the terminals 16a to 16c adjacent in the horizontal direction are arranged so as to be shifted in the vertical direction. For this reason, when the power line 3 connected to the power line connection part 39 of each terminal 16 is thick, it can prevent that the power lines 3 connected to the adjacent terminals 16a-16c interfere. In this case, even if the distance between the terminals 16 in the front-rear direction of the power line connecting portion 39 is reduced, the interference of the power lines 3 can be prevented.

  In the present embodiment, as shown in FIG. 13, the power line connection portions 39 of all the terminals 16 a to 16 c can be protruded downward. In this case, the operation of connecting the power line 3 to the power line connection portion 39 is performed on the lower side. Workability can be improved only by improving the workability.

  Moreover, each fixing member 15a-15c is arrange | positioned in the position shifted | deviated to the front-back direction like Fig.6 (a), and is arrange | positioned at zigzag form by planar view. For this reason, the power line connecting portions 39 of the terminals 16 a to 16 c adjacent in the horizontal direction are arranged so as to be shifted in the longitudinal direction of the conductor 8. Therefore, interference between the power lines 3 connected to the power line connection portions 39 of the terminals 16a to 16 is less likely to occur.

  Further, the power line connecting portions 39 of the terminals 16 a and 16 c are arranged outside the conductor 8 in the longitudinal direction of the conductor 8. For this reason, when connecting the power line 3 to the power line connection part 39 of the terminals 16a and 16c, the insulated trolley line 2 is not easily obstructed, and the power line 3 can be easily connected to the terminals 16a and 16c. In addition, the power line 3 connected to the terminals 16a and 16c can be easily pulled out from the power line connecting portion 39 not only upward or outward in the longitudinal direction of the insulated trolley wire 2, but also downward. It can be improved.

  Moreover, since the power line connection part 39 of each terminal 16a-16c protrudes from the main body 14, the pulling-out direction of the power line 3 from the power line connection part 39 is set to the front-back direction as shown in FIG. 7, or as shown in FIG. Or up and down. That is, the degree of freedom in the direction in which the power line 3 is drawn out is high, and it can be used in various construction environments.

2 Insulating trolley wire 8 Conductor 16a terminal 16b terminal 16c terminal 39 Power line connection part

Claims (3)

  A plurality of terminals electrically connected to the conductors of the insulated trolley wires are provided in a lateral direction perpendicular to the longitudinal direction of the conductors in a plan view, and the power line connecting portions of the terminals adjacent in the lateral direction are shifted in the vertical direction. A connector characterized by that.   2. The connector according to claim 1, wherein the power line connecting portions of the terminals adjacent in the lateral direction are arranged so as to be shifted in the longitudinal direction of the conductor.   The connector according to claim 1, wherein the power line connecting portion is disposed outside the conductor in the longitudinal direction of the conductor.

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