JP2007311275A - Supporting structure of terminal base and current-flowing member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make fastening easier and properly with a fastening means for supporting at least two current-flowing members including a high rigid current-flowing member. <P>SOLUTION: A terminal base 20 comprises a supporting member 21 to be mounted on a base member 3 and a fastening means (a fastening bolt 33 and an embedded nut 30) for fastening three current-flowing members 11, 12, 13 including a first current-flowing member 11 with high rigidity to the supporting member 21. The supporting member 21 is fitted into the base member 3 movably in the axial direction so as to be supported in a floating manner where the mounting hole 3a is formed in the base member 3 and the mounting shank portion 22 is formed in the supporting member 21. The supporting member 21 is made to move to the side of the first current-flowing member 11 having high rigidity by fastening a fastening bolt 33 to an embedded nut 30. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a support structure for a terminal block and a current-carrying member.

  An example of this type of terminal block is described in Patent Document 1. 14A and 14B show a terminal block of Patent Document 1, wherein FIG. 14A is a side view before screw connection, and FIG. 14B is a side view after screw connection. As shown in FIG. 14A, the terminal base 101 is provided with a pair of partition walls 103. A holder 104 is inserted in an area partitioned by the pair of partition walls 103. The holder 104 is an elastic plate-like member formed in an inverted U-shape, and is inserted into a recess 101a engraved along each inner side faced at the base of the partition wall 103 of the terminal base 101 at both ends thereof. Yes. A small screw 105 with a spring washer 106 and a flat washer 107 is temporarily held at the center of the holder 104. A crimp terminal 108 is inserted at the tip of the machine screw 105. Further, the terminal base 101 is embedded with a terminal portion base 102 that is a terminal fitting at the center of the region partitioned by the partition wall 103. When the small screw 105 temporarily held by the holder is screwed into the terminal portion base 102, the holder 104 is deformed to connect the crimp terminal 108 and the terminal portion base 102 ( (Refer FIG.14 (b).).

Japanese Patent Laid-Open No. 7-22080

  Incidentally, in the terminal block of Patent Document 1 (see FIGS. 14A and 14B), when the crimp terminal 108 has high rigidity, when the crimp terminal 108 is screwed into the terminal portion base 102, A case where the crimp terminal 108 is arranged on the terminal base 102 so as to be separated upward is conceivable. In such a case, even if the small screw 105 is screwed into the terminal portion pedestal 102, it is difficult to bring the crimp terminal 108 having high rigidity into close contact with the terminal portion pedestal 102. For this reason, poor conduction due to poor contact of the crimp terminal 108 with the terminal portion base 102 is caused, and the screwing workability of the small screw 105 is lowered. Further, the reaction force due to the screwing of the small screw 105 may concentrate on the weak parts of the terminal base 101 and the terminal part base 102, and the weak parts may be damaged such as deformation or cracking.

  The problem to be solved by the present invention is to provide a terminal block and a support structure for a current-carrying member that can be easily and properly tightened by a clamping means when supporting at least two current-carrying members including a highly rigid current-carrying member. Is to provide.

The above-mentioned problems can be solved by a terminal block and a support structure for a current-carrying member having the structure described in the claims.
That is, the terminal block described in claim 1 includes a base member installed on the base member, and a tightening means for fastening at least two current-carrying members including a highly rigid current-carrying member to the base member. And at least one of first support means for floatingly supporting the base member on the base member, and second support means for floatingly supporting a tightening member on the base member side of the tightening means on the base member. One support means is provided. Along with the tightening by the tightening means, at least one member of the base member and the tightening member floating-supported by the at least one support means is moved to the highly rigid energizing member side. With this configuration, at least one of the base member and the fastening member on the base member side moves to the highly rigid energizing member side in accordance with the tightening by the tightening means, so that at least the highly energizing member including the highly rigid energizing member is included. Tightening by the fastening means when supporting the two current-carrying members can be performed easily and appropriately.

  The terminal block described in claim 2 is the terminal block according to claim 1, wherein the first support means includes a hole provided in the base member, a hole provided in the base member, and the hole. And a shaft portion fitted in the portion so as to be movable in the axial direction. If comprised in this way, the 1st support means which carries out the floating support of the base member in a base member by fitting the axial part of a base member in the hole of a base member so that a movement is relatively possible is comprised. Thereby, the base member can move to the highly rigid energization member side with the tightening by the tightening means.

  According to a third aspect of the present invention, there is provided the terminal block according to the first aspect, wherein the first support means in the terminal block according to the first aspect is provided with a shaft portion provided on the base member, and the shaft portion. And a hole fitted so as to be movable in the axial direction. If comprised in this way, the 1st support means which carries out the floating support of the base member to a base member by fitting the hole of a base member to the axial part of a base member so that a movement is relatively possible is comprised. Thereby, the base member can move to the highly rigid energization member side with the tightening by the tightening means.

  Further, the terminal block described in claim 4 is such that the hole portion and the shaft portion of the first support means in the terminal block according to claim 2 or 3 are fitted in a non-rotating state. is there. If comprised in this way, since the hole part and shaft part of a 1st support means are fitted in the rotation prevention state, a base member can be floating-supported in a rotation prevention state to a base member.

  Further, the terminal block according to claim 5 holds the second support means in the terminal block according to claim 1 provided on the base member and movably moving the clamping member in the axial direction. It is comprised by the holding | maintenance part. With this configuration, the fastening member on the base member side of the fastening means is fitted to the base member by fitting the fastening member on the base member side of the fastening means to the holding portion of the base member so as to be relatively movable. The second support means for floatingly supporting is constructed. As a result, the tightening member on the base member side can move to the energizing member side where the base member has high rigidity in accordance with the tightening by the tightening means.

  According to a sixth aspect of the present invention, the terminal block includes a temporary fixing means for temporarily fixing the fastening member to the holding portion of the base member in the terminal block according to the fifth aspect. With this configuration, the fastening member on the base member side of the fastening means is temporarily fastened to the holding portion of the base member by the temporary fastening means, so that the fastening member can be easily fastened to the fastening member on the base member side. Can be done.

  Moreover, the support structure of the electricity supply member described in Claim 7 is a base member via the terminal block as described in any one of Claims 1-6 for at least 2 electricity supply members including a highly rigid electricity supply member. To support. With this configuration, at least one of the base member and the fastening member on the base member side moves to the highly rigid energizing member side in accordance with the tightening by the tightening means, so that at least the highly energizing member including the highly rigid energizing member is included. It is possible to provide a support structure for a current-carrying member including a terminal block that can be easily and properly tightened by a fastening means when supporting two current-carrying members.

  According to the support structure for the terminal block and the current-carrying member of the present invention, at least one of the base member and the fastening member on the side of the base member moves to the highly rigid current-carrying member side with the tightening by the fastening means. Further, it is possible to easily and properly perform the tightening by the tightening means when supporting at least two energizing members including the highly rigid energizing member.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the following examples.

[Embodiment 1] Embodiment 1 will be described. In the present embodiment, for example, a support structure for an energization member used in a power supply device such as a hybrid vehicle or an electric vehicle is illustrated. 1 is a plan view showing a supporting structure of the energizing member, FIG. 2 is a front sectional view, FIG. 3 is a front sectional view showing the supporting structure of the energizing member in a state before tightening the tightening bolt, and FIG. Is an external perspective view showing the terminal block, and FIG. 5 is a perspective view of the terminal block viewed from the lower surface side.
As shown in FIGS. 1 and 2, the current-carrying member support structure 1 includes a plurality of current-carrying members 11 (three are shown in FIG. 1) including a highly rigid current-carrying member 11 on a base member 3. 12 and 13 are supported via the terminal block 20. For convenience of explanation, the base member 3, the current-carrying members 11, 12, 13 and the terminal block 20 will be described in this order. Further, the orientation of the energization member in the support structure 1 is determined as described in each drawing for convenience.

  First, the base member 3 will be described. As shown in FIG. 2, the base member 3 has a plate shape, and is made of a substrate or a heat sink. The base member 3 has a circular support hole 3a for floatingly supporting a terminal block 20, which will be described later, so as to be movable in a tightening direction (from top to bottom in FIG. 2) of a tightening bolt 33 (described later). Is formed. The support hole 3a corresponds to a “hole” in this specification. Further, the base member 3 is formed with a circular detent hole 3b arranged in the support hole 3a at a predetermined interval (see FIG. 4).

Next, each energizing member 11, 12, 13 will be described.
As shown in FIG. 1, the energizing member 11 is a bus bar of a transformer (not shown) that is an electrical component, and, for example, a tightening bolt 33 (described later) with an increase in voltage and current. It has such a high rigidity that it is not deformed by the tightening force. As shown in FIG. 3, a bolt insertion hole 11 a through which a screw shaft portion 33 b of a tightening bolt 33 (described later) is inserted is formed at the distal end portion of the energizing member 11. The energizing member 11 is referred to as “first energizing member 11”.
As shown in FIG. 3, the energization member 12 is a noise terminal disposed between the energization member 11 and the terminal block 20 below the first energization member 11. A bolt insertion hole 12a through which a screw shaft portion 33b of a tightening bolt 33 (described later) is inserted is formed at the distal end portion of the energizing member 12. The energizing member 12 is referred to as “second energizing member 12”.
The energization member 13 is a connection terminal arranged on the upper side of the first energization member 11. A bolt insertion hole 13 a for inserting a screw shaft portion 33 b of a tightening bolt 33 (described later) is formed at the distal end portion of the energization member 13. The energizing member 13 is referred to as “third energizing member 13”. Further, the rigidity of the second energizing member 12 is smaller than the rigidity of the first energizing member 11 and has a larger rigidity than the rigidity of the second energizing member 12.
Moreover, as shown in FIG. 1, the front-end | tip part of the 1st electricity supply member 11 is orient | assigned to the front terminal block 20 from the rear side. Further, the distal end portion of the second energizing member 12 is directed from the right side to the left terminal block 20. The tip of the third energizing member 13 is directed from the left side to the right terminal block 20. Thus, the front-end | tip part of each said electricity supply member 11,12,13 is integrated on the terminal block 20 from multiple directions.

  Next, the terminal block 20 will be described. As shown in FIG. 2, the terminal block 20 is obtained by integrating an embedded nut 30 with resin by insert molding (also referred to as molding). As shown in FIG. 4, the base member 21 which makes the main body of the terminal block 20 with resin is formed. The base member 21 is formed into a flat D-shaped hollow cylinder having a flat left side surface 21a (see FIG. 5). As shown in FIG. 3, the embedded nut 30 is disposed on the same axis L in the upper end portion of the base member 21. The embedded nut 30 has a screw hole 30a that engages with a screw shaft portion 33b of a tightening bolt 33 including a headed bolt from above. The upper end surface of the embedded nut 30 is flush with the upper surface of the base member 21. The tightening bolt 33 has a head portion 33a at the upper end portion of the screw shaft portion 33b. The embedded nut 30 and the tightening bolt 33 constitute “tightening means” in the present specification. The embedded nut 30 corresponds to the “clamping member on the base member side” in this specification. Further, the tightening bolt 33 corresponds to a “tightening member” in this specification.

  As shown in FIG. 3, the height 21 </ b> H of the base member 21 is a predetermined amount d than the lower limit value of the tolerance of the height H <b> 1 between the opposing surfaces of the base member 3 and the first current-carrying member 11. Min, set to a low height. The predetermined amount d is about 0.5 mm, for example. Thus, when the base member 21 is placed on the base member 3 and the electrical component (transformer) having the first current-carrying member 11 is installed on the base member 3, the base member 21 and the first current-carrying member 11 are placed. A gap of at least a predetermined amount d is formed between the opposing surfaces.

  A cylindrical mounting shaft portion 22 that is movably fitted in the support hole portion 3a of the base member 3 so as to be movable in the axial direction, that is, the vertical direction protrudes from the lower end surface of the base member 21 (see FIG. 5). .) The attachment shaft portion 22 is formed integrally with the base member 21, for example. The attachment shaft portion 22 corresponds to the “shaft portion” in this specification. Further, the mounting shaft portion 22 of the base member 21 and the support hole portion 3a of the base member 3 constitute “first support means” in this specification.

  As shown in FIG. 4, a detent piece 23 that protrudes to the right rear is projected on the side surface of the lower end portion of the base member 21. A cylindrical detent pin 24 that protrudes in the detent hole 3b of the base member 3 so as to be movable in the axial direction, that is, the vertical direction, protrudes from the lower surface of the tip of the detent piece 23 ( See FIG. The rotation prevention pin 24 is made of, for example, metal and is integrated with the base member 21 by insert molding. Further, the rotation-preventing piece 23 having the rotation-preventing pin 24 of the base member 21 and the rotation-preventing hole 3 b of the base member 3 constitute “rotation-preventing means” as used in this specification.

  As shown in FIG. 4, the base member 21 continuously rises on the front side wall portion 25 rising continuously on the front half of the front side portion and the right side portion and on the rear half portion of the rear side portion and the right side portion. The rear side wall part 26 and the left side wall part 27 rising on the left side part are integrally formed. The second energizing member 12 and the third energizing member 13 can be respectively inserted between the front side wall portion 25 and the rear side wall portion 26 (see FIG. 1). Further, the front side wall portion 25 and the rear side wall portion 26 have a height H2 that can prevent the tightening bolt 33 from falling down to the right side during the tightening operation (see FIG. 3). Further, a laterally long rectangular insertion hole 26a is formed in the lower end portion of the rear side wall portion 26 (see FIG. 4). The first energization member 11 can be inserted into the insertion hole 26a (see FIG. 1). The left side wall 27 has a height 27H that is a predetermined amount lower than the total plate thickness of the first energizing member 11 and the second energizing member 12 (see FIG. 2).

  Next, an example of a procedure for supporting the current-carrying members 11, 12, and 13 via the terminal block 20 on the base member 3 will be described. First, an electrical component (transformer) having the first energization member 11 is installed on the base member 3. At this time, the first energizing member 11 is inserted into the insertion hole 26 a (see FIG. 4) of the rear side wall portion 26 of the terminal block 20, and the mounting shaft portion of the terminal block 20 is inserted into the support hole portion 3 a of the base member 3. 22 is fitted so as to be movable in the axial direction (vertical direction) (see FIG. 3). As a result, the terminal block 20 is floatingly supported on the base member 3. At the same time, the rotation prevention pin 24 of the terminal block 20 is fitted in the rotation prevention hole 3b of the base member 3 in the axial direction (vertical direction) (see FIG. 3). Thereby, the terminal block 20 is prevented from rotating on the base member 3. Next, as shown in FIG. 3, the second energization member 12 is passed between the front side wall portion 25 and the rear side wall portion 26 of the terminal block 20 and between the base member 21 and the first energization member 11. Plug in. Further, the third energization member 13 is inserted between the front side wall portion 25 and the rear side wall portion 26 of the terminal block 20 and disposed on the first energization member 11.

  Subsequently, the tightening bolt 33 (specifically, the screw shaft portion 33b) is connected to the bolt insertion hole 13a of the third energization member 13, the bolt insertion hole 11a of the first energization member 11, and the second energization member 12. The bolts are sequentially inserted into the bolt insertion holes 12a, and tightened to the embedded nuts 30 (specifically, the screw holes 30a) of the terminal block 20. Accordingly, as shown in FIG. 2, the base member 21 of the terminal block 20 is pulled up to the energizing member 11 side with reference to the first energizing member 11 having high rigidity among the energizing members 11, 12, and 13. To be moved. At this time, the mounting shaft portion 22 of the terminal block 20 slides upward with respect to the support hole portion 3 a of the base member 3. At the same time, the second energizing member 12 and the third energizing member 13 are tightened between the embedded nut 30 and the head 33 a of the tightening bolt 33 with the first energizing member 11 interposed therebetween. As a result, the current-carrying members 11, 12, 13 are supported on the terminal block 20 in a state where they can be energized.

  According to the terminal block 20 described above, when the tightening bolt 33 is tightened to the embedded nut 30, the base member 21 moves to the first current-carrying member 11 side having high rigidity, whereby the current-carrying members 11, 12, The fastening bolt 33 can be easily and properly fastened to the embedded nut 30 when supporting 13 (see FIG. 2). As a result, the current-carrying members 11, 12, 13 can be brought into close contact with each other. Thereby, the electricity supply failure by the contact failure of each electricity supply member 11,12,13 can be prevented or reduced. In addition, the workability of tightening the tightening bolt 33 with respect to the embedded nut 30 can be improved. Further, since it is possible to avoid the reaction force due to the tightening of the tightening bolts 33 with respect to the embedded nut 30 from being concentrated on the weak parts of the base member 3 and the base member 21, deformation, cracks, etc. occurring in the weak parts. Can be prevented or reduced.

  Further, by fitting the mounting shaft portion 22 of the base member 21 into the support hole portion 3a of the base member 3 so as to be relatively movable, first support means for floatingly supporting the base member 21 on the base member 3 is provided. (See FIG. 3). As a result, the base member 21 can move to the highly rigid first energizing member 11 side with the tightening of the tightening bolt 33 with respect to the embedded nut 30 (see FIG. 2).

  Further, according to the support structure 1 for the current-carrying member described above, the base member 21 moves to the highly rigid first current-carrying member 11 side with the tightening of the fastening bolt 33 to the embedded nut 30. To provide a support structure 1 for a current-carrying member provided with a terminal block 20 capable of easily and properly fastening a fastening bolt 33 to an embedded nut 30 when supporting the members 11, 12, and 13. Yes (see FIG. 2).

[Embodiment 2] Embodiment 2 will be described. Since the present embodiment is obtained by changing a part of the first embodiment, the changed portion will be described, and redundant description will be omitted. Also, in the following embodiments, the changed parts will be described, and redundant description will be omitted. FIG. 6 is a perspective view showing the relationship between the base member and the terminal block.
As shown in FIG. 6, in this embodiment, the circular support hole 3a (see FIG. 4) of the base member 3 in the first embodiment is supported in a polygonal shape (in FIG. 6, a hexagonal shape is shown). It is changed to a hole (reference numeral 3a1 is attached). At the same time, the cylindrical mounting shaft portion 22 (see FIG. 5) of the pedestal member 21 in the first embodiment has a polygonal tubular shape (in FIG. 6, a hexagonal tubular shape) that can be fitted into the support hole portion 3a1. ) Mounting shaft portion (reference numeral 22A is attached). Therefore, the support hole 3a1 of the base member 3 and the mounting shaft portion 22A of the base member 21 can be fitted in a non-rotating state. Thereby, the rotation prevention piece 23 which has the rotation prevention hole part 3b and the rotation prevention pin 24 in the said Example 1 (refer FIG. 4) can be abbreviate | omitted.

  Also according to the present embodiment, substantially the same operations and effects as those of the first embodiment can be obtained. Further, since the support hole portion 3a1 of the base member 3 and the mounting shaft portion 22A of the base member 21 are fitted in a non-rotating state, the base member 21 can be floatingly supported on the base member 3 in a non-rotating state.

[Embodiment 3] Embodiment 3 will be described. In the present embodiment, a part of the first embodiment is modified. FIG. 7 is a front sectional view showing a support structure for the energizing member.
As shown in FIG. 7, in this embodiment, the support hole portion 3 a (see FIG. 2) of the base member 3 in the first embodiment is changed to a columnar support pin portion 3 c protruding on the base member 3. ing. The support pin portion 3 c may be integrally formed with the base member 3 by resin, or can be formed by attaching a separate pin member, bolt, or the like to the base member 3. Further, the mounting shaft portion 22 (see FIG. 2) of the base member 21 in the first embodiment is changed to a mounting hole portion 22B that can be fitted to the support pin portion 3c. Therefore, the mounting hole portion 22B of the base member 21 can be fitted to the support pin portion 3c of the base member 3 so as to be relatively movable. The support pin portion 3c corresponds to the “shaft portion” in this specification. The attachment hole 22B corresponds to a “hole” in the present specification. Further, the support pin portion 3c and the mounting hole portion 22B constitute “first support means” in this specification.

  Also according to the present embodiment, substantially the same operations and effects as those of the first embodiment can be obtained. Further, a first support means for floatingly supporting the base member 21 on the base member 3 is configured by fitting the mounting hole portion 22B of the base member 21 to the support pin portion 3c of the base member 3 so as to be relatively movable. Is done. As a result, the base member 21 can move to the first current-carrying member 11 having a high rigidity as the fastening bolt 33 is fastened to the embedded nut 30. In addition, according to the said Example 2, by changing the support pin part 3c and the attachment hole part 22B into the polygonal support pin part and the attachment hole part, respectively, the support pin part and the attachment hole part are prevented from rotating. Can be fitted.

[Embodiment 4] Embodiment 4 will be described. In the present embodiment, a part of the first embodiment is modified. 8 is a front sectional view showing a supporting structure of the current-carrying member, FIG. 9 is a front sectional view showing the supporting structure of the current-carrying member in a state before the fastening bolt is tightened, and FIG. 10 is an exploded perspective view showing the terminal block. FIG.
As shown in FIG. 9, in the present embodiment, the support hole portion 3a and the anti-rotation hole portion 3b of the base member 3 in the first embodiment (see FIG. 3) are omitted. Further, a detent piece 23 having a mounting shaft portion 22 and a detent pin 24 of the terminal block 20, and a base member (reference numeral 21 </ b> A) is provided in which the side wall portions 25, 26, 27 and the embedded nut 30 are omitted. Are integrally provided on the base member 3 by screw means, adhesive means, integral formation or the like. Accordingly, a rectangular tube-shaped holding tube portion 28 is formed in the upper half portion of the base member 21A.

  In this embodiment, instead of the embedded nut 30 (see FIG. 3), a clamping nut 31 separate from the base member 21A is used (see FIG. 10). The tightening nut 31 has a polygonal (for example, quadrangular) outer shape. The tightening nut 31 is fitted in the holding cylinder portion 28 of the base member 21A so as to be movable in the axial direction, that is, in the vertical direction. The tightening nut 31 and the tightening bolt 33 constitute “tightening means” in this specification. The tightening nut 31 corresponds to a “clamping member on the base member side” in the present specification. In addition, the holding cylinder portion 28 constitutes “second supporting means” in this specification. Further, the height (plate thickness) 31H (see FIG. 9) of the tightening nut 31 is set to be larger than the length 31L (see FIG. 10) of one side (short piece). As a result, the tightening nut 31 can be fitted into the holding cylinder portion 28 so as to easily slide in the vertical direction.

  Next, an example of a procedure for supporting the current-carrying members 11, 12, and 13 via the terminal block 20 on the base member 3 will be described. The current-carrying members 11, 12, and 13 are arranged on the terminal block 20 in which the tightening nut 31 is fitted in the holding cylinder portion 28, as in the first embodiment (see FIG. 9). Subsequently, the tightening bolt 33 (specifically, the screw shaft portion 33b) is connected to the bolt insertion hole 13a of the third energization member 13, the bolt insertion hole 11a of the first energization member 11, and the second energization member 12. Are sequentially inserted into the bolt insertion holes 12a and tightened to the tightening nuts 31 (specifically, the screw holes 31a) of the terminal block 20. Accordingly, as shown in FIG. 8, the tightening nut 31 is moved to the energizing member 11 side with the first energizing member 11 having high rigidity as a reference. At this time, the tightening nut 31 slides upward in the holding cylinder portion 28 of the base member 21A. At the same time, the second energizing member 12 and the third energizing member 13 are tightened between the tightening nut 31 and the head 33 a of the tightening bolt 33 with the first energizing member 11 interposed therebetween. As a result, the current-carrying members 11, 12, 13 are supported on the terminal block 20 in a state where they can be energized.

  According to the terminal block 20 described above, as the tightening bolt 33 is tightened with the tightening nut 31, the tightening nut 31 moves to the first current-carrying member 11 side having high rigidity. , 13 can be easily and properly tightened with the tightening bolt 33 with respect to the tightening nut 31 (see FIG. 8). As a result, in the same manner as in the first embodiment, it is possible to prevent or reduce energization failure due to contact failure between the energization members 11, 12, and 13. In addition, the workability of tightening the tightening bolt 33 with respect to the tightening nut 31 can be improved. Further, since it is possible to avoid the reaction force due to the tightening of the tightening bolts 33 against the tightening nut 31 from being concentrated on the weak body portions of the base member 3 and the base member 21A, the deformation, cracks, etc. that occur in the weak body portions. Can be prevented or reduced.

  Further, a second support means for floatingly supporting the tightening nut 31 on the base member 21A is configured by fitting the tightening nut 31 to the holding cylinder portion 28 of the base member 21A so as to be relatively movable. (See FIG. 9.) As a result, the tightening nut 31 can move toward the first current-carrying member 11 having high rigidity as the tightening bolt 33 is tightened with respect to the tightening nut 31 (see FIG. 8).

  Further, according to the support structure 1 for the current-carrying member described above, the tightening nut 31 moves toward the first current-carrying member 11 having high rigidity as the tightening bolt 33 is tightened to the tightening nut 31. To provide a support structure 1 for a current-carrying member including a terminal block 20 that can easily and properly tighten a fastening bolt 33 to a fastening nut 31 when supporting the current-carrying members 11, 12, and 13. (See FIG. 8).

[Example 5]
Example 5 will be described. In this embodiment, a part of the fourth embodiment is changed. FIG. 11 is a perspective view showing the terminal block.
As shown in FIG. 11, the present embodiment is fastened to the inner wall surfaces of the opposite side wall portions 28a and 28b at the upper end portion of the holding cylinder portion 28 (see FIG. 10) of the base member 21A in the fourth embodiment. A latching claw 29 for temporarily securing the nut 31 so as to prevent it from protruding protrudes in an opposing manner. In this case, the tightening nut 31 utilizes the elastic deformation of the both side walls 28a and 28b of the holding cylinder portion 28 of the base member 21A, so-called bending deformation (see the two-dot chain lines 28a and 28b in the figure). 28 and is temporarily fixed by elastic restoration of both side walls 28a and 28b. The locking claw 29 constitutes “temporary fixing means” in this specification.

  Also according to the present embodiment, substantially the same operations and effects as those of the fourth embodiment can be obtained. Further, the fastening bolt 33 can be easily fastened to the fastening nut 31 by temporarily fastening the fastening nut 31 to the holding cylinder portion 28 of the base member 21 </ b> A with the locking claws 29.

FIG. 12 is a perspective view showing a first modification of the terminal block, and FIG. 13 is a perspective view showing a second modification of the terminal block.
[Modification 1 of terminal block 20]
As shown in FIG. 12, the modified example 1 of the terminal block 20 is provided with locking claws 29 on the opposite side wall portions 28a and 28b (see FIG. 11) of the holding cylinder portion 28 of the base member 21A in the fifth embodiment. A laterally elongated opening hole 28A is formed near the lower portion of the lower side of the first side wall so that the peripheral portions of the locking claws 29 of the side wall portions 28a and 28b are easily bent and deformed. Thereby, the assembly | attachment property of the clamping nut 31 with respect to the holding | maintenance cylinder part 28 of 21 A of base members can be improved.

[Modification 2 of terminal block 20]
In Modification 2 of the terminal block 20, as shown in FIG. 13, the opposite side wall portions 28a and 28b (see FIG. 11) of the holding cylinder portion 28 of the base member 21A in the fifth embodiment are thinned, and both sides thereof are arranged. The wall portions 28a and 28b are easily bent and deformed. Thereby, the assembly | attachment property of the clamping nut 31 with respect to the holding | maintenance cylinder part 28 of 21 A of base members can be improved.

  The present invention is not limited to the above-described embodiments, and modifications can be made without departing from the gist of the present invention. For example, the terminal block may be any member as long as at least two energizing members including a highly rigid energizing member are fastened to the base member by the tightening means. Further, the terminal block can include both support means of the first support means and the second support means. Further, the support hole portions 3a and 3a1 or the rotation preventing hole portion 3b of the base member are not limited to the through holes penetrating the base member 3, but can be bottomed concave holes. Further, the embedded nut 30 can be integrated with the base member 21 not only by insert molding but also by bonding. In the above embodiment, the base members 21 and 21A are provided with nut members (embedded nuts 30 and fastening nuts 31), and bolt members (tightening bolts 33) are fastened to the nut members. The base members 21 and 21A may be provided with a bolt member instead of the nut member (the embedded nut 30 and the tightening nut 31), and the nut member may be fastened to the bolt member. Further, the mounting shaft portions 22 and 22A of the base member 21 can be formed in a column shape instead of a cylindrical shape. Further, the support hole portions 3a, 3a1 and the mounting shaft portions 22, 22A are not limited to polygonal shapes, but can be fitted in a non-rotating state by being elliptical or different shapes. Further, the support pin portion 3c and the attachment hole portion 22B are not limited to a polygonal shape, and can be fitted in a non-rotating state by using an elliptical shape or a different shape. Further, the holding cylinder portion 28 and the tightening nut 31 are not limited to a polygonal shape, and can be fitted in a non-rotating state by using an elliptical shape or a different shape.

It is a top view which shows the support structure of the electricity supply member concerning Example 1 of this invention. It is a front sectional view which shows the support structure of an electricity supply member. It is a front sectional view showing a support structure of a current-carrying member in a state before fastening of a fastening bolt. It is an external appearance perspective view which shows a terminal block. It is the perspective view which looked at the terminal block from the lower surface side. It is a perspective view which shows the relationship between the base member concerning Example 2 of this invention, and a terminal block. It is a front sectional view which shows the support structure of the electricity supply member concerning Example 3 of this invention. It is a front sectional view which shows the support structure of the electricity supply member concerning Example 4 of this invention. It is a front sectional view showing a support structure of a current-carrying member in a state before fastening of a fastening bolt. It is a disassembled perspective view which shows a terminal block. It is a perspective view which shows the terminal block concerning Example 5 of this invention. It is a perspective view which shows the example 1 of a change of a terminal block. It is a perspective view which shows the example 2 of a change of a terminal block. The terminal block of patent document 1 is shown, (a) is a side view before screw connection, (b) is a side view after screw connection.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support structure of electricity supply member 3 Base member 3a Support hole part (hole part)
3a1 Support hole (hole)
3c Support pin part (shaft part)
11 1st electricity supply member (highly rigid electricity supply member)
12 Second energizing member 13 Third energizing member 20 Terminal block 21 Base member 21A Base member 22 Mounting shaft (shaft)
22A Mounting shaft (shaft)
22B Mounting hole (hole)
28 Holding cylinder 29 Locking claw (temporary fixing means)
30 Embedded nut 31 Tightening nut 33 Tightening bolt

Claims (7)

A terminal block comprising a base member installed on a base member and a fastening means for fastening at least two current-carrying members including a highly rigid current-carrying member to the base member,
At least one of first support means for floatingly supporting the base member on the base member, and second support means for floatingly supporting a tightening member on the base member side of the tightening means on the base member. Providing support means,
Along with the tightening of the tightening means, at least one member of the base member and the tightening member floating-supported by the at least one support means is moved to the highly rigid energizing member side. Characteristic terminal block. The terminal block according to claim 1,
The first support means includes a hole provided in the base member and a shaft provided in the base member and fitted in the hole so as to be movable in the axial direction. Terminal block. The terminal block according to claim 1,
The first support means includes a shaft portion provided in the base member and a hole portion provided in the base member and fitted in the shaft portion so as to be movable in the axial direction. Terminal block. The terminal block according to claim 2 or 3,
The terminal block, wherein the hole portion and the shaft portion of the first support means are fitted in a non-rotating state. The terminal block according to claim 1,
The terminal block according to claim 1, wherein the second support means includes a holding portion that is provided on the base member and holds the fastening member so as to be movable in the axial direction. The terminal block according to claim 5,
A terminal block comprising: a temporary holding means for temporarily fixing the tightening member in the holding portion of the base member. A support structure for an energization member, wherein at least two energization members including a highly rigid energization member are supported by a base member via the terminal block according to any one of claims 1 to 6.

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