JP4518882B2 - Busbar connection device - Google Patents

Description

  The present invention relates to a structure of a busbar connection device including an electrical contact means including a contactor that contacts and clamps an insertion conductor used in a main circuit connection portion of a switchgear such as a switchboard, etc. .

  In the prior art, the contact portion, the main bus branching portion, and the row bus connecting portion in the bus connecting device are structures provided at separate locations on the main circuit, and both the assembly man-hour and the number of parts are large (for example, , See Patent Document 1).

Japanese Utility Model Publication No. 54-180269

  An object of the present invention is to obtain a busbar connection device that can appropriately reduce the number of parts and the number of assembly steps, and can effectively reduce the parts cost and the assembly work cost.

In the busbar connection device according to the present invention, the connection conductor is electrically coupled to a connection conductor member having a first electrical connection portion provided at one end and a second electrical connection portion provided at the other end. An electrical contact means that branches from the member and is provided, the electrical contact means is constituted by a base material and a plurality of contact pieces joined to the base material; and a base of the electrical contact means The material is formed into a T-shape and is integrated with the connection conductor member.

According to the present invention, the electrical contact means that is electrically coupled to the connection conductor member and projects from the connection conductor member is constituted by the base material and the plurality of contact pieces joined to the base material. The base material of the electrical contact means is T-shaped and integrally formed with the connection conductor member, so that the number of parts and assembly man-hours can be appropriately reduced, the parts cost and the assembly work cost can be reduced , and the contact piece It is possible to obtain a busbar connection device that can surely perform the contact operation of a conductor that is in contact with and away from the conductor .

Embodiment 1 FIG.
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1A is a side view showing the configuration of the T-shaped contact unit in the first embodiment. FIG. 1B is an end view showing the configuration of the T-shaped contact unit in the first embodiment. FIG. 2 is a side view showing the configuration of the contact piece in the first embodiment. FIG. 3A is a side view showing the configuration of the T-shaped conductor in the first embodiment. FIG.3 (b) is sectional drawing in the BB line of Fig.3 (a). FIG. 3C is a plan view showing the configuration of the T-shaped conductor in the first embodiment. FIG. 4 is a side view showing a configuration in which the T-shaped contact unit according to the first embodiment is assembled into a bus.

  1A and 1B showing a side view and an end view of a T-shaped contactor unit 5 according to Embodiment 1 of the present invention, a T-shaped branch conductor 1 includes a fastening bolt 2 and a T-shaped branch conductor. A plurality of contact pieces 3 attached to one central branch portion TF are provided. The plug-in conductor 4 contacts and separates from the contact piece 3. The T-shaped contact unit 5 is configured by combining the T-shaped branch conductor 1 and the contact piece 3. FIG. 2 is a side view of the contact piece element bodies 3 a and 3 b constituting the contact piece 3.

  3A, 3B, and 3C showing a side view, a cross-sectional view, and a plan view of a T-shaped conductor 1 that is a component of the T-shaped contactor unit 5 according to Embodiment 1 of the present invention. The conductor 1 has holes 1a and 1b for passing through fastening bolts 2 (see FIG. 1) at both ends in order to be electrically connected to the main bus conductor 6, and the projecting engagement of the contact piece 3 at the central branch TF The grooves 1c and 1d for attaching the part PJ are processed.

The contact piece 3 whose contact piece element bodies 3a and 3b are shown in FIG. 2 includes a contact piece group 3A composed of six contact piece element bodies 3a and six contact piece element bodies paired with the contact piece group 3A. It is comprised by the contact piece group 3B which consists of 3b.
The contact piece elements 3a and 3b are provided with shaft holes HS into which the pivots Sa and Sb are inserted, respectively, and are provided with projecting engagement portions PJ.
The six contact piece bodies 3a can be rotated about the common pivot Sa by mounting the common pivot Sa in the shaft hole HS in a fitted state. The six contact piece elements 3b paired with the six contact piece elements 3a can be rotated about the common axis Sb by mounting the common axis Sb in a state of being inserted into the shaft hole HS. Has been.
The projecting engaging portions PJ provided on the six contact piece bodies 3 a are attached to the T-shaped branch conductor 1 in a state of being fitted into the grooves 1 c provided in the central branch portion TF of the T-shaped branch conductor 1. Further, the projecting engaging portions PJ provided on the six contact piece bodies 3b are attached to the T-shaped branch conductor 1 in a state of being fitted into the grooves 1d provided in the central branch portion TF of the T-shaped branch conductor 1. The
The coil spring PR is fitted and mounted on the spring mounting member PA, and one end thereof is engaged with the engagement hole HR provided in the contact piece element body 3a, and the other end is provided in the contact piece element body 3b. The contact piece group 3A consisting of the six contact piece base bodies 3a and the contact piece group 3B consisting of the six contact piece base bodies 3b are urged toward each other by engaging with the engagement holes HR. When the insertion conductor 4 is inserted between the contact portion CP of the contact piece element body 3a and the contact portion CP of the contact piece element body 3b, the contact portions of the insertion conductor 4 and the contact piece element bodies 3a and 3b are inserted. Apply contact pressure between CP.

FIG. 4 shows a structural state in which the T-shaped contact unit 5 is mounted on the main bus conductor 6, and the electrical connection portions 6 a and 6 b provided at both ends of the main bus conductor 6 are arranged in parallel. Are connected to electrical connection portions 7a and 7b provided on the row bus 7 constituting a common bus for the switchboard unit (not shown).
The T-shaped contact unit 5 can be connected to the main bus bar conductor 6 by means of the fastening bolt 2, and the plug-in conductor 4 is connected to the contact piece 3 by moving upward as shown in FIG. A mechanical contact structure is formed.
In the T-shaped contact unit 5, the T-shaped branch conductor 1 is connected to the main busbar by performing bolt screw fastening from the downward direction shown in FIG. 4 with the fastening bolt 2 inserted into the hole 1 a of the T-shaped branch conductor 1. Fastened to the conductor 6, the T-shaped contact unit 5 is electrically and mechanically coupled to the main bus conductor 6.
The electrical connection portion 6a and the electrical connection portion 6b provided on the main bus bar conductor 6 are respectively bolted from below in FIG. The main bus bar conductor 6 and the row board bus bar 7 are electrically and mechanically coupled by being fastened to the portion 7a and the electrical connection portion 7b. The fastening bolts 8 are spaced in the depth direction of the paper surface in FIG. 4 at the fastening points between the electrical connection part 6a and the electrical connection part 7a and the fastening parts between the electrical connection part 6b and the electrical connection part 7b, respectively. Two each are provided.

  In this manner, the bolt screw fastening operation to the main bus conductor 6 of the T-shaped branch conductor 1 by the fastening bolt 2 is performed from a specific direction from the lower direction shown in FIG. 4, and the main bus conductor by the fastening bolt 8 is performed. The bolt screw fastening operation to the electrical connection portions 7a, 7b of the row bus 7 of the electrical connection portions 6a, 6b provided in 6 is also performed by the bolt screw fastening by the fastening bolt 2 from the downward direction shown in FIG. The bolt screw fastening operation by the fastening bolts 2 and 8 is performed from the same specific direction, and the bolt screw fastening operation can be easily and quickly performed as a whole.

  The insertion conductor 4 is moved upward as shown in FIG. 1 (a), so that it is held between the contact pieces 3 forming a pair of T-shaped contactor units 5 as shown in FIG. It is electrically coupled to the T-shaped contact unit 5 that is electrically coupled to the conductor 6.

  The plate-like plug-in conductor 4 that is held in contact with the contact piece 3 of the T-shaped contact unit 5 has both sides constituting the contact surface with the contact piece 3 extending in the extending direction of the main bus conductor portion 6 c of the main bus conductor 6. And the contact surface of the plate-like insertion conductor 4 is provided on the contact piece 3 of the T-shaped contact unit 5, and the contact surface extends in the extending direction of the main bus conductor portion 6 c of the main bus conductor 6. It contacts with the contact part CP. The contact surface of the contact portion CP provided on the contact piece 3 of the T-shaped contact unit 5 extends in the extending direction of the main bus conductor portion 6 c of the main bus conductor 6, so that the plate-like insertion conductor 4 and T The contact operation of the letter-shaped contact unit 5 with the contact piece 3 can be reliably performed in a narrow space.

  According to Embodiment 1 of the present invention, a connection conductor comprising a main bus conductor 6 having a first electrical connection portion 6a provided at one end and a second electrical connection portion 6b provided at the other end. A connecting conductor member comprising the main bus conductor 6 and bolted with a fastening bolt 2 to be electrically coupled to the connecting conductor member comprising the main bus conductor 6 and branching off from the connecting conductor member. Since the electrical contact means comprising the T-shaped contact unit 5 having the contact piece 3 provided is provided, the busbar connection device can appropriately reduce the number of parts and the number of assembly steps, and can effectively reduce the parts cost and the assembly work cost. Can be obtained.

  According to the first embodiment of the present invention, in the configuration of the preceding paragraph, the electrical connection between the electrical contact means comprising the T-shaped contact unit 5 and the connecting conductor member comprising the main bus bar conductor 6 is downward. By providing a first screw fastening portion by a fastening bolt 2 secured by fastening a bolt screw from a predetermined direction such as from the bottom, and by fastening a bolt screw by a fastening bolt 8 from the same direction as the predetermined direction such as from the lower direction Since the second screw fastening portion by the fastening bolt 8 for electrical connection between the first and second electrical connection portions 6a, 6b and the bus bar comprising the row board bus bar 7 is provided, the number of parts and the number of assembly steps can be reduced. It is possible to obtain a busbar connection device that can appropriately reduce, effectively reduce the component cost and the assembly work cost, and can easily and quickly perform the screw fastening work.

  Furthermore, according to Embodiment 1 of the present invention, in the configuration of the preceding paragraph, a pair is formed that sandwiches the plate-like movable conductor made of the insertion conductor 4 in the insertion contact state of the plate-like movable conductor made of the insertion conductor 4. A contact piece 3 comprising a plurality of contact piece bodies 3a, 3b is provided in an electrical contact means comprising the T-shaped contact unit 5, and a contact piece 3 comprising a plurality of paired contact piece bodies 3a, 3b. The contact surface of the contact portion CP to the plate-like movable conductor made of the insertion conductor 4 is the same as the extending direction of the plate-like main bus conductor portion 6 c in the connection conductor member made of the upper and lower connection portion T-shaped main bus conductor 6. The number of parts and assembly man-hours can be reduced appropriately, the parts cost and assembly work cost can be effectively reduced, and the contact and separation between the plate-shaped movable conductor and the contact piece can be reduced in a narrow space. Surely in line It can be obtained that bus connecting device.

Embodiment 2. FIG.
A second embodiment of the present invention will be described with reference to FIGS. FIG. 5A is a cross-sectional view showing the overall configuration of the busbar connection device according to the second embodiment. FIG. 5B is a side view showing the overall configuration of the busbar connection device according to the second embodiment. FIG. 6 is a longitudinal sectional view showing the overall configuration of the busbar connection device according to the second embodiment.
In the second embodiment, the configuration other than the specific configuration described here has the same configuration contents as the configuration described in the first embodiment and has the same effect. In the drawings, the same reference numerals indicate the same or corresponding parts.

5 (a) and 5 (b) and FIG. 6 showing the configuration in the second embodiment, the plate-like main bus conductor 6 has at least three outer peripheral surfaces covered with the mold insulator 9, and the mold insulator 9 They are joined together.
That is, the upper surface and both side surfaces of the main bus conductor 6 shown in FIGS. 5 and 6 are all covered with the mold insulator 9, and the lower surface of the main bus conductor 6 shown in FIGS. 5 and 6 is T-shaped. Except for the portion corresponding to the contact unit 5 and the portions corresponding to the electrical connection portions 6a and 6b, it is covered with the mold insulator 9.
The mold insulator 9 has a fluted groove shape covering at least three outer peripheral surfaces of the main bus bar conductor 6, and a portion corresponding to the coupling portion with the T-shaped contact unit 5 and the electrical connection portions 6a and 6b. , And both end faces thereof are open. A buried metal 10 having a fixing screw hole 10 a is embedded in the upper surface of the mold insulator 9.

FIG. 6 is a cross-sectional view taken along line B-B in FIG. 5, and shows a longitudinal cross-sectional view of the center portion of the T-shaped contactor unit 5 in the mold structure. In addition, both end faces are covered with the mold insulator 9, and a T-shaped contact unit 5 is fastened by the fastening bolt 2 to the open portion of the lower surface of the main bus conductor 6 that is not covered with the mold insulator 9. 6, and electrical connection portions 7 a, 7 b of the row bus 7 are fastened by fastening bolts 8 to the lower surfaces of the electrical connection portions 6 a, 6 b of the main bus conductor 6. And are electrically connected to each other. The fastening bolts 8 are spaced from each other in the depth direction of the paper surface in FIG. 6 at the fastening location between the electrical connection portion 6a and the electrical connection portion 7a and the fastening location between the electrical connection portion 6b and the electrical connection portion 7b. Two each are provided.
A coil spring PR is disposed between the contact piece elements 3a and 3b of the contact piece 3 constituting the T-shaped contact unit 5 in a state in which the coil spring PR is fitted and attached to the spring mounting member PA.

The mold insulator 9 insulates the illustrated upper surface and both side surfaces and both end surfaces of the main bus bar conductor 6 and extends in the vertical direction to both side surfaces of the T-shaped contact unit 5 and the electrical connection portions 6a and 6b. The pleat 9a of the insulator 9 is configured to ensure insulation.
Then, by means of a fastening bolt (not shown) screwed into a fixing screw hole 10a provided in the buried metal 10, the mold insulator 9, and the main bus conductor 6 and the T-shaped contactor unit integrated therewith are provided. 5 is fixed at a predetermined position in a switchgear such as a switchboard.

  According to the second embodiment of the present invention, in the configuration of the first embodiment, the main busbar is formed by the mold busbar in which at least three surfaces of the outer peripheral surface of the plate-like conductor member made of the main busbar conductor 6 are covered with the mold insulator 9. Since the connecting conductor member composed of the conductor 6 is configured, a bus connecting device that can appropriately reduce the number of parts and the number of assembly steps, effectively reduce the parts cost and the assembly work cost, and accurately perform the insulation processing of the bus connecting part. Obtainable.

Embodiment 3 FIG.
A third embodiment of the present invention will be described with reference to FIG. FIG. 7 is a side view showing a configuration in which the T-shaped contact unit according to the third embodiment is assembled into a bus.
In the third embodiment, the configuration other than the specific configuration described here has the same configuration contents as the configurations in the first and second embodiments described above and exhibits the same operation. is there. In the drawings, the same reference numerals indicate the same or corresponding parts.

FIG. 7 corresponds to FIG. 3 showing the configuration of incorporating the T-shaped contactor unit into the bus bar in the first embodiment. The T-shaped conductor 1 and the main bus bar conductor 6 are integrated to reduce the number of parts and the number of assembly steps. The structure of the T-shaped main bus unit 12 is shown.
That is, the T-shaped conductor 1 of the T-shaped contact unit 5 is integrated with the main bus conductor 6 as a T-shaped main bus conductor 11T, and the contact unit 5 constitutes a T-shaped main bus unit 12 together with the T-shaped main bus conductor 11T. To do.

The electrical connection portions 11a and 11b of the T-shaped main bus conductor 11T extend horizontally in the extending direction of the plate-shaped main bus conductor portion 11c extending in the illustrated horizontal direction of the T-shaped main bus conductor 11 respectively. Thus, the fastening bolts 8 are electrically connected to the electrical connection portions 7a and 7b of the row board bus 7. The fastening bolts 8 are spaced in the depth direction of the paper surface in FIG. 7 at the fastening location between the electrical connection portion 11a and the electrical connection portion 7a and the fastening location between the electrical connection portion 11b and the electrical connection portion 7b, respectively. Two each are provided.
The electrical connection portions 11a and 11b of the T-shaped main bus conductor 11T extend in the same direction as the plate-shaped main bus conductor portion 11c of the main bus conductor 11T extending in the horizontal direction in the figure, and are horizontal at the same vertical position. The row buses 7, 7 extending in the direction can be electrically connected to each other.

  According to the third embodiment of the present invention, in the configuration in the first or second embodiment, the electrical contact means composed of the T-shaped contactor unit 5 is replaced with the base material composed of the T-shaped conductor 1 and the base material. And a contact piece 3 which is press-welded to the base member, and a base material made of the T-shaped conductor 1 of the electrical contact means comprising the T-shaped contact unit 5 is used as a T-shaped main bus conductor 11T from the main bus conductor 6. Since the connecting conductor member is integrally formed, the number of parts and the number of assembling steps can be further appropriately reduced, and a bus bar connecting device that can effectively reduce the parts cost and the assembling work cost can be obtained.

  According to Embodiment 3 of the present invention, in the configuration of the preceding paragraph, at least one of the first and second electrical connection portions 11a and 11b provided on the connection conductor member made of the T-shaped main bus conductor 11T. Is extended in the same direction as the extending direction of the plate-shaped main bus conductor portion 11c in the connecting conductor member composed of the T-shaped main bus conductor 11T, so that the number of parts and the number of assembling steps can be appropriately reduced. It is possible to obtain a busbar connection device that can effectively reduce the cost and the assembly work cost and can easily connect the busbar in the same direction as the extending direction of the connecting conductor member.

Embodiment 4 FIG.
A fourth embodiment of the present invention will be described with reference to FIG. FIG. 8 is a side view showing the overall configuration of the busbar connection device according to the fourth embodiment.
In the fourth embodiment, the configuration other than the specific configuration described here has the same configuration contents as the configurations in the first to third embodiments described above and exhibits the same operation. is there. In the drawings, the same reference numerals indicate the same or corresponding parts.

In FIG. 8 showing the configuration in the fourth embodiment, the T-shaped main bus unit 12 is provided at both ends of a vertical connection portion T-shaped main bus conductor 11L having a plate-shaped main bus conductor portion 11c extending in the horizontal direction. By bending the electrical connection portions 11a and 11b vertically and extending in the vertical direction, two upper and lower main buses having different positions in the horizontal direction and the vertical direction can be connected, and branch connection between them is possible. It is composed.
That is, the vertical connection portion T-shaped main bus conductor 11L constituting the T-shaped main bus unit 12 extends in the horizontal direction of the plate-shaped main bus conductor portion 11c, and both ends of the vertical connection portion T-shaped main bus conductor 11L. The electrical connection portions 11a and 11b connected to the plate-shaped main bus bar conductor portion 11c are bent at the lower side in the drawing to extend in the vertical direction, and the electrical connection portion 11b is shown in the drawing. Bend upward and extend vertically.
The T-shaped contact unit 5 constituting the T-shaped main bus unit 12 together with the upper and lower connection portion T-shaped main bus conductor 11L is connected to the plate-shaped main bus conductor portion 11c of the upper and lower connection portion T-shaped main bus conductor 11L at one end of the contact piece 3. , And the contact operation with the insertion conductor 4 is performed at the other end of the contact piece 3.
The electrical connection portions 11a and 11b of the upper and lower connection portion T-shaped main bus conductor 11L are fastened to the electrical connection portions 7a and 7b of the row board bus bar 7 by fastening bolts 8, respectively. Done. The fastening bolts 8 are spaced in the depth direction of the paper surface in FIG. 8 at the fastening points between the electrical connection part 11a and the electrical connection part 7a and the fastening parts between the electrical connection part 11b and the electrical connection part 7b, respectively. Two each are provided.

  The fourth embodiment is different from the third embodiment in that at least one of the first and second electrical connection portions 11a and 11b provided on the connection conductor member made of the main bus bar conductor 11T is made of the main bus bar conductor 11T. The connecting conductor member is modified so as to extend in a direction perpendicular to the extending direction of the plate-like main bus bar conductor portion 11c. At least one of the first and second electrical connection portions 11a and 11b provided on the connection conductor member made of the main bus conductor 11T is an extension of the plate-like main bus conductor portion 11c in the connection conductor member made of the main bus conductor 11T. By changing to extend in the direction perpendicular to the current direction, the number of parts and assembly man-hours can be reduced appropriately, and the cost of parts and assembly can be effectively reduced, and the direction of extension of the connecting conductor members of the busbars Thus, a busbar connection device that can be easily connected in a direction perpendicular to each other can be obtained. Even if the same changes are made to the first embodiment or the second embodiment, the same effect is obtained.

Embodiment 5 FIG.
A fifth embodiment of the present invention will be described with reference to FIG. FIG. 9 is a side view showing the overall configuration of the busbar connection device in the fifth embodiment.
In the fifth embodiment, the configuration other than the specific configuration described here has the same configuration contents as the configurations in the first to fourth embodiments described above and exhibits the same operation. is there. In the drawings, the same reference numerals indicate the same or corresponding parts.

In FIG. 9 showing the configuration in the fifth embodiment, the T-shaped main bus unit 12 converts the main bus bar to an arbitrary angle by bending both ends of the upper and lower connecting portion T-shaped main bus conductor 11S to an arbitrary angle φ. It becomes the structure to do.
That is, the vertical connection portion T-shaped main bus conductor 11L constituting the T-shaped main bus unit 12 extends in the horizontal direction of the plate-shaped main bus conductor portion 11c, and both ends of the vertical connection portion T-shaped main bus conductor 11L. The electrical connection portions 11a and 11b connected to the plate-shaped main bus bar conductor portion 11c are bent at an angle to the lower left in the drawing and extended in an oblique direction, and the electrical connection portions 11b is bent diagonally to the lower right in the figure and extended in an oblique direction.
The T-shaped contact unit 5 constituting the T-shaped main bus unit 12 together with the upper and lower connection portion T-shaped main bus conductor 11S is connected to the plate-shaped main bus conductor portion 11c of the upper and lower connection portion T-shaped main bus conductor 11L at one end of the contact piece 3. , And the contact operation with the insertion conductor 4 is performed at the other end of the contact piece 3.
The electrical connection portions 11a and 11b of the upper and lower connection portion T-shaped main bus conductor 11S are fastened to the electrical connection portions 7a and 7b of the row board bus bar 7 by fastening bolts 8, respectively. Done. The fastening bolts 8 are spaced apart in the depth direction of the paper surface in FIG. 9 at the fastening points between the electrical connection part 11a and the electrical connection part 7a and the fastening parts between the electrical connection part 11b and the electrical connection part 7b, respectively. Two each are provided.

  The fifth embodiment is different from the third embodiment in that at least one of the first and second electrical connection portions 11a and 11b provided on the connection conductor member made of the main bus bar conductor 11S is made of the main bus bar conductor 11S. The connecting conductor member is modified so as to extend in a direction oblique to the extending direction of the plate-like main bus bar conductor portion 11c. At least one of the first and second electrical connection portions 11a and 11b provided on the connection conductor member made of the main bus conductor 11S is an extension of the plate-like main bus conductor portion 11c in the connection conductor member made of the main bus conductor 11S. By changing to extend in the direction oblique to the current direction, the number of parts and assembly man-hours can be reduced appropriately, the parts cost and assembly work cost can be effectively reduced, and the extension direction of the connecting conductor member of the busbar A busbar connecting device that can easily connect in an oblique direction can be obtained. Even if the same changes are made to the first embodiment or the second embodiment, the same effect is obtained.

Embodiment 6 FIG.
A sixth embodiment of the present invention will be described with reference to FIG. FIG. 10A is a cross-sectional view showing the entire configuration of the busbar connection device according to the sixth embodiment. FIG.10 (b) is a side view which shows the whole structure of the bus-line connection apparatus in Embodiment 6. FIG.
In the sixth embodiment, the configuration other than the specific configuration described here has the same configuration contents as the configurations in the first to fifth embodiments described above and exhibits the same operation. is there. In the drawings, the same reference numerals indicate the same or corresponding parts.

In this sixth embodiment shown in FIG. 10, in the configuration of the fifth embodiment shown in FIG. 9 and the like, by providing a branch connection portion 11d at the upper part, to the auxiliary equipment (instrument transformer VT etc.) on the panel arrangement. It is possible to adopt a structure in which the branch connection portion 11d can be used as a high-voltage electric wire extraction portion.
In other words, the plate-like main bus conductor portion 11c of the upper and lower connecting portion T-shaped main bus conductor 11S constituting the T-shaped main bus unit 12 is provided with a branch connection portion 11d at the upper center position in the figure.
And the electrical connection part 11a and the electrical connection part 11b provided in the main bus-line conductor 11S are respectively bolted by the fastening bolts 8, whereby the electrical connection part 7a and the electrical connection of the row bus 7 are connected. Fastened to portion 7b, main bus conductor 6 and row bus 7 are electrically and mechanically coupled. The fastening bolts 8 are provided in the depth direction of the paper surface in FIG. 10B at the fastening location between the electrical connection portion 6a and the electrical connection portion 7a and the fastening location between the electrical connection portion 6b and the electrical connection portion 7b, respectively. Two are provided at intervals.

  In the sixth embodiment, the fifth embodiment is modified to include a branch connection portion 11d that projects from the plate-shaped main bus conductor portion 11c of the connection conductor member that includes the main bus conductor 11S. is there. The number of parts and assembly man-hours can be appropriately reduced by changing the connecting conductor member made of the main bus conductor 11S to be provided with the branch connecting portion 11d that branches off from the plate-like main bus conductor portion 11c. It is possible to obtain a busbar connection device that can effectively reduce the cost and the assembly work cost and can easily perform branch connection. Even if the same change is made in each of the first to fourth embodiments, the same effect is obtained.

Embodiment 7 FIG.
A seventh embodiment of the present invention will be described with reference to FIG. FIG. 11A is a cross-sectional view showing an overall configuration of the busbar connection device according to the seventh embodiment. FIG.11 (b) is a side view which shows the whole structure of the bus-line connection apparatus in Embodiment 7. FIG. FIG.11 (c) is the top view which looked at the whole structure of the bus-line connection apparatus in Embodiment 7 from the bottom.
In the seventh embodiment, the configuration other than the specific configuration described here has the same configuration contents as the configurations in the first to sixth embodiments described above and exhibits the same operation. is there. In the drawings, the same reference numerals indicate the same or corresponding parts.

In the seventh embodiment shown in FIG. 11, in the configuration of the sixth embodiment shown in FIG. 10, the T-shaped contactor unit 5 is attached to the central portion or the end portion in the width direction of the main bus conductor 6, A structure that can be arranged at an arbitrary position such as an oblique direction with respect to the longitudinal direction of the main bus conductor 6 is adopted.
That is, a plate that is contacted and held by the contact piece 3 (see FIG. 1) of the T-shaped contact unit 5 that constitutes the T-shaped main bus unit 12 together with the plate-shaped main bus conductor 11c of the upper and lower connection portion T-shaped main bus conductor 11S. Both side surfaces constituting the contact surface of the shaped insertion conductor 4 extend in the extending direction of the main bus conductor portion 6 c of the main bus conductor 6, and the contact piece 3 of the T-shaped contact unit 5 is connected to the insertion conductor 4. The extension direction of the contact portion CP (see FIG. 1) of the contact piece 3 with respect to the insertion conductor 4 is the extension of the plate-shaped main bus conductor portion 11c in the upper and lower connection portion T-shaped main bus conductor 11S. It is provided at a position rotated by an arbitrary angle θ with respect to the current direction, that is, the longitudinal direction.
And the electrical connection part 11a and the electrical connection part 11b provided in the main bus-line conductor 11S are respectively bolted by the fastening bolts 8, whereby the electrical connection part 7a and the electrical connection of the row bus 7 are connected. Fastened to portion 7b, main bus conductor 6 and row bus 7 are electrically and mechanically coupled. The fastening bolts 8 are provided in the depth direction of the paper surface in FIG. 11B at the fastening location between the electrical connection portion 6a and the electrical connection portion 7a and the fastening location between the electrical connection portion 6b and the electrical connection portion 7b, respectively. Two are provided at intervals.

In FIG. 11, the extending direction center position Ph shown in FIG. 11C of the contact piece 3 in the T-shaped contact unit 5 is the width of the plate-shaped main bus conductor portion 11c in the upper and lower connection portion T-shaped main bus conductor 11S. An example is shown in which it is disposed at a distance LA from the side edge corresponding to 1/2.
The distance LA from the side edge of the plate-shaped main bus conductor portion 11c is arbitrarily selected from values other than ½ of the width of the plate-shaped main bus conductor portion 11c according to the position of the insertion conductor 4. be able to.

  This configuration can be used as an application of the contact unit to a primary junction portion that constitutes a branch connection portion that first branches from a bus wire as a contact portion in a switch gear bus connection device such as a switchboard.

  According to the seventh embodiment of the present invention, in any configuration from the first to sixth embodiments, the insertion conductor 4 is formed in the insertion contact state of the plate-shaped movable conductor including the insertion conductor 4. A contact piece 3 composed of a plurality of contact piece bodies 3a, 3b forming a pair sandwiching the plate-shaped movable conductor is provided in an electrical contact means composed of the T-shaped contact unit unit 5 and a plurality of contact pieces forming the pair The contact surface of the contact portion CP of the contact piece 3 composed of the element bodies 3a, 3b to the plate-shaped movable conductor composed of the insertion conductor 4 is the plate-shaped main in the connection conductor member composed of the upper and lower connection portion T-shaped main bus conductor 11S. Since the bus conductor portion 11c extends in a direction oblique to the extending direction, the number of parts and the number of assembling steps can be appropriately reduced, and the part cost and the assembling work cost can be effectively reduced. Connecting conductor Even if they are arranged obliquely with respect to wood, it is possible to obtain a bus connecting device suitably performed together contact and separation operation between the contact piece and the plate-shaped movable conductor to the arrangement of the plate-shaped movable conductor.

It is the side view and end view which show the structure of the T-shaped contactor unit in Embodiment 1 by this invention, and the side view which shows the structure of a contact piece. It is a side view which shows the structure of the contact piece in Embodiment 1 by this invention. . It is the side view and cross-sectional view which show the structure of the T-shaped conductor in Embodiment 1 by this invention, and the top view which shows the structure of a T-shaped conductor. It is a side view which shows the built-in structure to the bus-bar of the T-shaped contact unit in Embodiment 1 by this invention. It is the cross-sectional view and side view which show the whole structure of the bus-line connection apparatus in Embodiment 2 by this invention. It is a longitudinal cross-sectional view which shows the whole structure of the bus-bar connection apparatus in Embodiment 2 by this invention. It is a side view which shows the assembly structure to the bus-bar of the T-shaped contact unit unit in Embodiment 3 by this invention. It is a side view which shows the whole structure of the bus-line connection apparatus in Embodiment 4 by this invention. It is a side view which shows the whole structure of the bus-line connection apparatus in Embodiment 5 by this invention. It is sectional drawing and the side view which show the whole structure of the bus-line connection apparatus in Embodiment 6 by this invention. It is sectional drawing, the side view, and top view which show the whole structure of the bus-line connection apparatus in Embodiment 7 by this invention.

Explanation of symbols

1 T-shaped branch conductor, 2 fastening bolt, 3 contact piece, 3a, 3b contact piece element, 4 plug-in conductor, 5 T-shaped contact unit, 6 main bus conductor, 7 row board bus conductor, 8 fastening bolt , 9 Mold insulator, 10 Filling, 11T Horizontal connection portion T-shaped main bus conductor, 11L Vertical connection portion T-shaped main bus conductor, 11S Oblique connection portion T-shaped main bus conductor, 12 T-shaped main bus unit.

Claims (9)

A connection conductor member having a first electrical connection portion provided at one end and a second electrical connection portion provided at the other end; electrically coupled to the connection conductor member; from the connection conductor member A branching and projecting electrical contact means is provided, and the electrical contact means is composed of a base material and a plurality of contact pieces joined to the base material, and the base material of the electrical contact means is A busbar connection device characterized in that the connection conductor member is integrally formed as a T-shape .   A first screw fastening portion that secures electrical coupling between the electrical contact means and the connection conductor member by screw fastening from a predetermined direction is provided, and first and first screw fastening by screw fastening from the same direction as the predetermined direction are provided. 2. The busbar connection device according to claim 1, further comprising a second screw fastening portion that performs electrical connection between the two electrical connection portions and the busbar.   3. The bus bar connection device according to claim 1, wherein the connection conductor member is configured by a mold bus bar in which at least three outer peripheral surfaces of the plate-like conductor member are covered with a mold insulator.   The at least one of the 1st and 2nd electrical connection part provided in the said connection conductor member is extended in the same direction as the extension direction of the said connection conductor member. The busbar connection device according to any of the above. The busbar connection device according to any one of claims 1 to 4, further comprising a branch connection portion that branches from the connection conductor member. A connection conductor member having a first electrical connection portion provided at one end and a second electrical connection portion provided at the other end; electrically coupled to the connection conductor member; from the connection conductor member A branching and projecting electrical contact means is provided, and the electrical contact means is composed of a base material and a plurality of contact pieces joined to the base material, and the base material of the electrical contact means is A T-shape is integrally formed with the connection conductor member, and at least one of the first and second electrical connection portions provided on the connection conductor member is perpendicular to the extending direction of the connection conductor member. mother conductor connection device characterized in that to extend. A connection conductor member having a first electrical connection portion provided at one end and a second electrical connection portion provided at the other end; electrically coupled to the connection conductor member; from the connection conductor member A branching and projecting electrical contact means is provided, and the electrical contact means is composed of a base material and a plurality of contact pieces joined to the base material. A T-shape is integrally formed with the connection conductor member, and at least one of the first and second electrical connection portions provided on the connection conductor member is inclined with respect to the extending direction of the connection conductor member. mother conductor connection device characterized in that to extend. A connection conductor member having a first electrical connection portion provided at one end and a second electrical connection portion provided at the other end; electrically coupled to the connection conductor member; from the connection conductor member A branching and projecting electrical contact means is provided, and the electrical contact means is composed of a base material and a plurality of contact pieces joined to the base material, and the base material of the electrical contact means is A T-shape is integrally formed with the connection conductor member, and a pair of contact pieces that are in contact with and sandwich the plate-like movable conductor is provided in the electrical contact means, and the contact piece is connected to the plate-like movable conductor. mother conductor connection device you wherein a contact portion that extend in the same direction as the extending direction of the connection conductor member. A connection conductor member having a first electrical connection portion provided at one end and a second electrical connection portion provided at the other end; electrically coupled to the connection conductor member; from the connection conductor member A branching and projecting electrical contact means is provided, and the electrical contact means is composed of a base material and a plurality of contact pieces joined to the base material, and the base material of the electrical contact means is A T-shape is integrally formed with the connection conductor member, and a pair of contact pieces that are in contact with and sandwich the plate-like movable conductor is provided in the electrical contact means, and the contact piece is connected to the plate-like movable conductor. mother conductor connection device you wherein a contact portion that extend in the direction of the extending direction and the diagonal of the connection conductor member.

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