connector

Abstract

A connector capable of improving design freedom is provided. The connector (10) has a housing (11), a bus bar (12) having a portion embedded in the housing (11), a nut holding member (13) attached to the housing (11), and a nut (14) held by the nut holding member (13). The bus bar (12) has a terminal connecting portion (16) extending to the outside of the housing (11). The terminal connecting portion (16) has a through-hole (23) into which a bolt for fastening is inserted, and with which the nut (14) is screwed. The terminal connecting portion (16) is fastened to the counterpart terminal by the bolt and the nut (14). Further, the nut holding member (13) has a restriction portion (43) that restricts rotation of the counterpart terminal about the axis (L1) of the through-hole (23).

Description

Technical Field

[0001] This disclosure relates to connectors. Background Technology

[0002] For example, Patent Document 1 describes a connector comprising a housing and a busbar partially embedded in the housing. The busbar has a terminal connection portion protruding from the housing to the outside. The terminal connection portion has a through hole for bolt insertion. A nut is held in the housing at a position corresponding to the through hole of the terminal connection portion. The opposing terminal is secured at the terminal connection portion by a bolt inserted into the through hole and the nut.

[0003] A limiting portion is integrally formed in the housing, which restricts the rotation of the counterpart terminal centered on the bolt axis. In the connector of Patent Document 1, this limiting portion is a wall portion erected on both sides of the terminal connection portion. The wall portion is integrally formed with the housing body during the injection molding of the housing. When the bolt is tightened, the counterpart terminal contacts the wall portion of the housing, thereby restricting the associated rotation of the counterpart terminal. Existing technical documents Patent documents

[0004] Patent Document 1: Japanese Patent Application Publication No. 2017-117616 Summary of the Invention The problem that the invention aims to solve

[0005] In connectors as described above, due to constraints in the housing molding process, such as the pull-out direction of the molding die, there is a problem that the setting position of the limiting part around the bolt shaft is limited. For example, in the connector of Patent Document 1, considering the relationship with the pull-out direction of the molding die that forms the housing, the limiting part cannot be set using the position on the housing.

[0006] The purpose of this disclosure is to provide connectors that enable greater design freedom. Solution for solving the problem

[0007] The connector disclosed herein comprises: a housing; a busbar, a portion of which is embedded in the housing and connected to a counterpart terminal; a nut retaining member mounted on the housing; and a nut retained in the nut retaining member. The busbar has a terminal connection portion extending outside the housing, the terminal connection portion having a through hole for inserting a fastening bolt that engages with the nut, and is fastened to the counterpart terminal by the bolt and the nut. The nut retaining member has a limiting portion that limits rotation of the counterpart terminal about the axis of the through hole. Invention Effects

[0008] The connector disclosed herein enhances design freedom. Attached Figure Description

[0009] Figure 1 This is a perspective view of the connector in the implementation method. Figure 2 This is an exploded perspective view of the connector in this configuration. Figure 3 This is a side view of the connector in this configuration, viewed from the Y direction. Figure 4 This is a side view of the connector in this configuration, viewed from the Z direction. Figure 5 yes Figure 3 Sectional view along line 5-5. Detailed Implementation

[0010] [Description of embodiments of this disclosure] First, embodiments of this disclosure will be described. The connector disclosed herein, [1] The device comprises: a housing; a busbar, a portion of which is embedded in the housing and connected to a counterpart terminal; a nut retaining member installed in the housing; and a nut retained in the nut retaining member, the busbar having a terminal connection portion extending to the outside of the housing, the terminal connection portion having a through hole for inserting a fastening bolt that engages with the nut, and being fastened to the counterpart terminal by the bolt and the nut, the nut retaining member having a limiting portion that limits the rotation of the counterpart terminal about the axis of the through hole.

[0011] According to this structure, the limiting part that restricts the rotation of the opposite terminal is provided in the nut retaining member, which is separate from the housing. Therefore, the position of the limiting part can be set regardless of the constraints on the housing's molding. This increases the design freedom of the connector.

[0012] [2] The terminal connection portion has: a protrusion that extends from the housing along a first direction; and a fastened portion that extends from the top of the protrusion in a second direction intersecting the first direction, the fastened portion having the through hole and being fastened to the opposite terminal by means of the bolt and the nut, the housing having an opposing portion that is opposite to the fastened portion in a direction along the axis of the through hole, and the nut retaining member and the nut being disposed between the fastened portion and the opposing portion.

[0013] According to this structure, in a connector where the terminal connection portion of the busbar is bent, a limiting portion can be provided in the nut retaining member installed between the fastened portion of the terminal connection portion and the opposing portion of the housing.

[0014] [3] The limiting portion is provided near the top end in the second direction relative to the fastened portion. According to this structure, when the busbar is injection molded as an insert into the housing, a sliding mold is sometimes provided between the fastened portion of the busbar and the opposing portion of the housing to form a space for a nut. When the pull-out direction of this sliding mold is along the second direction, a limiting portion extending from the housing cannot be provided near the top end in the second direction of the fastened portion. Therefore, by providing a limiting portion on the nut retaining member near the top end in the second direction of the fastened portion, a limiting portion can be provided at a location where it cannot be provided on the housing.

[0015] [4] The housing has an insulating wall, which is disposed on both sides of the fastened part in a third direction perpendicular to both the first direction and the second direction. According to this structure, not only the limiting part of the nut retaining member, but also the insulating wall of the housing can restrict the rotation of the counterpart terminal. That is, by providing multiple parts that restrict the rotation of the counterpart terminal, multiple circumferential positioning settings of the counterpart terminal can be prepared.

[0016] [5] The housing has a base end side restriction portion disposed near the base end in the second direction relative to the fastened portion. According to this structure, the connector includes at least four parts that restrict the rotation of the other terminal, such as a nut retaining member, a pair of insulating walls, and a base-side restricting part. Therefore, by providing multiple parts that restrict the rotation of the other terminal, at least four circumferentially oriented positions of the other terminal can be prepared.

[0017] [6] The limiting part is columnar and extends along the axis of the through hole. According to this structure, the rotation of the opposite terminal can be appropriately restricted by the columnar limiting part.

[0018] [Details of the embodiments of this disclosure] Specific examples of the connectors disclosed herein are described below with reference to the accompanying drawings. In the drawings, for ease of explanation, some parts of the structure are sometimes exaggerated or simplified. Furthermore, the dimensional ratios of the various parts sometimes differ in the drawings. Additionally, the terms "perpendicular" and "orthogonal" in this specification include not only strictly perpendicular or orthogonal cases, but also generally perpendicular or orthogonal cases within the scope of their function and effect in this embodiment.

[0019] Furthermore, in this specification, "opposite" refers to a position where surfaces or components are directly opposite each other, including not only positions where they are completely opposite each other, but also positions where they are partially opposite each other. Additionally, "opposite" in this specification includes both cases where a component independent of the two parts is interposed between the two parts, and cases where nothing is placed between the two parts.

[0020] (Overall structure of connector 10) like Figure 1 As shown, the connector 10 of this embodiment includes a housing 11, a busbar 12, a nut retaining member 13, and a nut 14. The housing 11 is made of an insulator such as synthetic resin. A portion of the busbar 12 is embedded in the housing 11.

[0021] The housing 11 is mounted, for example, in a chassis (not shown). A machine-side connection 15, located at one end of the busbar 12, is electrically connected to internal components of the chassis. The busbar 12 has a terminal connection 16 at its end opposite to the machine-side connection 15.

[0022] like Figure 3 As shown, terminal connection 16 is connected to counterpart terminal 17. Counterpart terminal 17 is connected to the end of wire 18, and wire 18 is electrically connected to an electrical component (not shown). Counterpart terminal 17 has a connection portion 17a that connects to terminal connection 16 of busbar 12, and a cylindrical portion 17b that secures the end of wire 18. Connection portion 17a has a bolt hole (not shown) through which bolt B is inserted. Connection portion 17a is secured to terminal connection 16 by bolt B and nut 14. Cylindrical portion 17b is connected to the end of wire 18, for example, by crimping. That is, counterpart terminal 17 is a circular terminal having a cylindrical portion 17b as a crimping portion and a bolt hole, formed from a plate-shaped raw material by stamping.

[0023] (Structure of busbar 12) like Figure 1 and Figure 2 As shown, the busbar 12 is made of a conductive material such as metal. The busbar 12 is, for example, plate-shaped. The busbar 12 is, for example, formed from a plate-shaped raw material by stamping.

[0024] The terminal connection portion 16 and the machine-side connection portion 15 in the busbar 12 each extend outside the housing 11. That is, the terminal connection portion 16 and the machine-side connection portion 15 are not embedded inside the housing 11.

[0025] In the accompanying drawings, the X, Y, and Z directions represent three mutually orthogonal directions. For example, multiple busbars 12 are arranged along the X direction. In the busbars 12, terminal connection portions 16 extend from the housing 11 towards the Y direction, and machine-side connection portions 15 extend from the housing 11 towards the other Y direction.

[0026] The terminal connection portion 16 has a protrusion 21 extending from the housing 11 along the Y direction, and a fastening portion 22 extending from the top of the protrusion 21 in a direction intersecting the Y direction. That is, the terminal connection portion 16 is formed by bending from the protrusion 21 to the fastening portion 22. The protrusion 21 is, for example, a plate-shaped portion perpendicular to the Z direction. The fastening portion 22 is, for example, a plate-shaped portion perpendicular to the Y direction. The fastening portion 22 extends from the top of the protrusion 21 along the Z direction. In other words, the angle formed by the protrusion 21 and the fastening portion 22 is approximately a right angle.

[0027] The fastened part 22 has a through hole 23, through which the insertion is made. Figure 3 Bolt B is shown. The through hole 2 extends through the fastened portion 22 along the Y direction. That is, the axis L1 of the through hole 23 is along the Y direction. The shape of the through hole 23, viewed from the through direction, is, for example, circular.

[0028] (Structure of shell 11) like Figure 2 , Figure 4 as well as Figure 5 As shown, the housing 11 has a counter portion 31 that is opposite to the fastened portion 22 in the direction along the axis L1. A nut retaining member 13 and a nut 14 are disposed between the fastened portion 22 and the counter portion 31.

[0029] The housing 11 includes a base 32, an insulating wall 33 extending from the base 32, and a base-end side limiting portion 34 extending from the base 32. A portion of a busbar 12 is embedded in the base 32. The base 32 is the portion of the housing 11 that includes the opposing portion 31. Furthermore, the opposing portion 31, the pair of insulating walls 33, and the base-end side limiting portion 34 are respectively provided with multiple corresponding to multiple busbars 12.

[0030] The insulating wall 33 is a wall used to ensure the insulation of the periphery of the terminal connection portion 16. The insulating wall 33 is, for example, respectively provided on both sides of each terminal connection portion 16 in the X direction. The insulating wall 33 protrudes from the base 32 along the Y direction, for example. The insulating wall 33 is, for example, plate-shaped and perpendicular to the X direction. That is, as... Figure 3 As shown, when viewed from the Y direction, the insulating wall 33 forms a shape that extends in a straight line along the Z direction.

[0031] The base-end side limiting portion 34 is provided near the base end 22a in the Z direction relative to the fastened portion 22. The base end 22a in the Z direction of the fastened portion 22 is the end of the fastened portion 22 that is connected to the protruding portion 21. In addition, the tip 22b of the fastened portion 22 is the end on the side opposite to the base end 22a in the Z direction. The base-end side limiting portion 34 is opposite to the base end 22a of the fastened portion 22 in the Z direction. Furthermore, in the following description, the direction in the Z direction towards which the tip 22b of the fastened portion 22 faces is sometimes referred to as downward or lower side, and the opposite direction is referred to as upward or upper side.

[0032] The base-end side limiting portion 34 is, for example, columnar, extending from the base portion 32 along the Y direction. The base-end side limiting portion 34 is opposed to the base end 22a of the fastened portion 22 in the Z direction. The base-end side limiting portion 34 restricts the rotation of the opposing terminal 17 centered on the axis L1. Figure 3 As shown, the base-side limiting portion 34 is positioned at a point where it overlaps with the center line L2 between the insulating walls 33 on both sides of the terminal connection portion 16 when viewed from the Y direction. Furthermore, the center line L2 is a straight line extending along the Z direction. Additionally, the center line L2 intersects the axis L1 of the through hole 23. In the X direction, the distances from the center line L2 to the insulating walls 33 on both sides are equal.

[0033] like Figure 4 As shown, the insulating wall 33 is configured to face the fastened portion 22 and the connecting portion 17a fixed to the opposite terminal 17 of the fastened portion 22 in the X direction. Furthermore, the base-side limiting portion 34 is configured to face the fastened portion 22 and the connecting portion 17a in the Z direction.

[0034] (Structure of nut retaining member 13) like Figure 2 As shown, the nut retaining member 13 is separate from the housing 11. The nut retaining member 13 is mounted on the housing 11. Furthermore, multiple nut retaining members 13 are provided corresponding to multiple busbars 12. The nut retaining member 13 has a retaining body 41 for retaining the nut 14, an extension 42, a limiting part 43, and a pair of fixing parts 44.

[0035] The retaining body 41 has a nut storage portion 41a. The nut 14 is stored in the nut storage portion 41a. The nut 14 and the nut storage portion 41a are polygonal, for example, quadrilateral, when viewed from the Y direction. The nut 14 is fixed to the nut storage portion 41a by, for example, pressing.

[0036] The fixing parts 44 are respectively provided on both sides of the retaining body 41 in the X direction. Each fixing part 44 has: a protrusion 45 that protrudes from the side 41b of the retaining body 41 in the X direction; an arm 46 that extends from the protrusion 45 along the Z direction; and a locking part 47 that is provided at the top end of the arm 46.

[0037] The nut retaining member 13 is assembled relative to the housing 11 from below along the Z-direction. With the nut retaining member 13 assembled to the housing 11, the insulating wall 33 is located between the side 41b of the retaining body 41 and the arm 46. The locking portion 47 engages with the notch 33a formed at the Z-direction end of the insulating wall 33. Thus, the nut retaining member 13 is held in place so as not to detach from the housing 11 in the Z-direction.

[0038] like Figure 5 As shown, with the nut retaining member 13 assembled in the housing 11, the nut 14 housed in the nut storage portion 41a contacts the back side of the fastened portion 22. The nut 14 is arranged such that its central axis aligns with the axis L1 of the through hole 23. Furthermore, the retaining portion body 41 in the nut retaining member 13 has a first abutting portion 41c that abuts against the housing 11 in the Z direction, and a second abutting portion 41d that abuts against the protrusion 21 of the terminal connection portion 16 in the Z direction. Additionally, the retaining portion body 41 has a hole 41e into which the tip of the bolt B protruding from the nut 14 enters.

[0039] like Figure 4 As shown, a guide portion 31a protruding in the Y direction is provided in the opposing portion 31 of the housing 11. The guide portion 31a extends linearly along the Z direction. A groove 48 is formed linearly along the Z direction on the back side of the retaining body 41, and the guide portion 31a is inserted into the groove 48. By engaging the guide portion 31a and the groove 48, the nut retaining member 13 can be positioned relative to the housing 11 in the X direction.

[0040] like Figure 1 , Figure 2 as well as Figure 5 As shown, the extension portion 42 extends downward from the holding portion body 41. The limiting portion 43 extends from the extension portion 42 along the Y direction to the same side as the terminal connection portion 16. The limiting portion 43 is, for example, a column extending in the Y direction. The limiting portion 43 is provided near the top end 22b in the Z direction relative to the fastened portion 22. That is, the limiting portion 43 is opposite to the top end 22b of the fastened portion 22 in the Z direction. In addition, the limiting portion 43 is configured to be opposite to the connection portion 17a of the opposite terminal 17 fixed to the fastened portion 22 in the Z direction.

[0041] like Figure 3 As shown, the limiting part 43 is positioned at a location that overlaps with the center line L2 between the pair of insulating walls 33 when viewed from the Y direction. That is, the limiting part 43, the axis L1 of the through hole 23, and the base-end limiting part 34 are all positioned on the same straight line.

[0042] like Figure 4As shown, the top ends of the limiting portion 43 and the pair of insulating walls 33 are each set at the same position in the Y direction. Furthermore, the top end position of the base-end limiting portion 34 is set at the same position in the Y direction as the top ends of the limiting portion 43 and the insulating walls 33. Additionally, the limiting portion 43, the insulating walls 33, and the base-end limiting portion 34 are configured such that, in the circumferential direction centered on axis L1, they face the cylindrical portion 17b of the opposing terminal 17 in its connection with the terminal connection portion 16. Furthermore, the state in which the opposing terminal 17 is connected to the terminal connection portion 16 includes... Figure 3 In addition to the state shown by the solid line, it also includes Figure 3 The three states are indicated by the double-dotted lines.

[0043] The function of this embodiment will be explained. With the connecting portion 17a of the opposite terminal 17 overlapping the surface of the fastened portion 22 of the busbar 12, the connecting portion 17a and the fastened portion 22 are fastened together by screwing the bolt B onto the nut 14. Furthermore, Figure 3 The diagram shows the range including two fastened portions 22, and illustrates the state before one fastened portion 22 is fastened to the other terminal 17 by bolts, and the other fastened portion 22 is fastened to the other terminal 17 by bolts.

[0044] As the circumferential position setting of the counterpart terminal 17, for example Figure 3 As shown, the configuration is such that the cylindrical portion 17b of the opposing terminal 17 is led out between the limiting portion 43 and the insulating wall 33. When bolt B is tightened, the opposing terminal 17 rotates in the rotation direction (clockwise) of bolt B. The opposing terminal 17 is... Figure 3 In the configuration shown by the solid line, the cylindrical portion 17b rotates clockwise around the axis L1 and comes into contact with the limiting portion 43. That is, the limiting portion 43 restricts the rotation of the opposing terminal 17 around the axis L1. Furthermore, as described above, the cylindrical portion 17b may sometimes come into contact with the limiting portion 43 due to the rotation of the opposing terminal 17 during bolt tightening, but other methods are also possible. That is, the cylindrical portion 17b may be pre-positioned by contacting the limiting portion 43 before bolt tightening, and the bolt tightening of the opposing terminal 17 may be performed in this state.

[0045] In this embodiment, the circumferential position of the counterpart terminal 17 is set as follows: Figure 3The four settings are shown by solid lines and double-dotted lines. The first is the first position where the cylindrical portion 17b is extended from between the limiting portion 43 and one insulating wall 33. The second is the second position where the cylindrical portion 17b is extended from between the limiting portion 43 and the other insulating wall 33. The third is the third position where the cylindrical portion 17b is extended from between the base end-side limiting portion 34 and one insulating wall 33. The fourth is the fourth position where the cylindrical portion 17b is extended from between the base end-side limiting portion 34 and the other insulating wall 33. Regardless of which position the opposing terminal 17 is set to, the cylindrical portion 17b of the opposing terminal 17 is in contact with one of the limiting portion 43, the pair of insulating walls 33, and the base end-side limiting portion 34, thereby restricting the rotation of the opposing terminal 17.

[0046] Additionally, the limiting part 43, the pair of insulating walls 33, and the base-side limiting part 34 also serve to restrict the rotation of the opposite terminal 17 when the bolt B is removed. For example, in Figure 3 In the configuration shown by the solid line, when removing bolt B, the opposing terminal 17 rotates clockwise and counterclockwise around axis L1, thereby bringing the cylindrical portion 17b into contact with the insulating wall 33. This restricts the rotation of the opposing terminal 17, improving workability when removing bolt B.

[0047] Next, the molding method of connector 10 will be explained. The housing 11 is manufactured by injection molding (insert molding) using the busbar 12 as an insert. In this insert molding, the main upper and lower mold pull-out directions are along the Y direction. Furthermore, during insert molding, a sliding mold is used to create a space for the nut 14 between the fastened portion 22 and the opposing portion 31. This sliding mold is positioned between the fastened portion 22 and the opposing portion 31, and its pull-out direction is the top 22b side (lower side) in the Z direction. Therefore, a restrictive portion integrally formed with the housing 11 cannot be located at the top 22b side of the fastened portion 22 in the Z direction. In this respect, in this embodiment, a restrictive portion 43 positioned at the top 22b side of the fastened portion 22 in the Z direction is provided on the nut retaining member 13, which is separate from the housing 11. Therefore, the restrictive portion 43 can be provided at a position that cannot be formed on the housing 11 due to molding constraints.

[0048] The effects of this implementation method will be explained. (1) The nut retaining member 13, which is separate from the housing 11, has a limiting part 43 that restricts the rotation of the opposite terminal 17 centered on the axis L1 of the through hole 23. Therefore, the position of the limiting part 43 can be set regardless of the constraints on the forming of the housing 11. Therefore, the design freedom of the connector 10 can be improved.

[0049] (2) The terminal connection portion 16 has: a protrusion portion 21 extending from the housing 11 along a first direction (Y direction in this embodiment); and a fastened portion 22 extending from the top of the protrusion portion 21 in a second direction (Z direction in this embodiment) intersecting the first direction. The fastened portion 22 has a through hole 23. The fastened portion 22 is fastened to the opposite terminal 17 by a bolt B and a nut 14. The housing 11 has an opposing portion 31, which is opposite to the fastened portion 22 in the direction along the axis L1 of the through hole 23. Furthermore, a nut retaining member 13 and a nut 14 are provided between the fastened portion 22 and the opposing portion 31. According to this structure, in the connector 10 where the terminal connection portion 16 of the busbar 12 is bent, a limiting portion 43 can be provided on the nut retaining member 13 installed between the fastened portion 22 and the opposing portion 31. Furthermore, by bending the terminal connection portion 16 from the protrusion portion 21 to the fastened portion 22, the degree of freedom in setting the circumferential position of the counterpart terminal 17 that is bolted to the fastened portion 22 can be increased.

[0050] (3) The limiting part 43 is provided near the top end 22b in the Z direction relative to the fastened part 22. According to this structure, when the busbar 12 is injection molded as an insert into the housing 11, a sliding mold is sometimes provided between the fastened part 22 of the busbar 12 and the opposing part 31 of the housing 11 to form a space for the placement of the nut 14. When the pull-out direction of the sliding mold is along the Z direction, the limiting part 43 extending from the housing 11 cannot be provided on the top end 22b side of the fastened part 22 in the Z direction. In contrast, according to this embodiment, by providing the limiting part 43 provided on the nut retaining member 13 on the top end 22b side of the fastened part 22 in the Z direction, the limiting part 43 can be provided at a position where it cannot be provided on the housing 11.

[0051] (4) The housing 11 has an insulating wall 33, which is provided on both sides of the fastened portion 22 in a third direction (X direction in this embodiment) perpendicular to both the Y direction (first direction) and the Z direction (second direction). According to this structure, not only the limiting portion 43 of the nut retaining member 13, but also the insulating wall 33 of the housing 11 can restrict the rotation of the counterpart terminal 17. That is, by providing multiple portions that restrict the rotation of the counterpart terminal 17, multiple circumferential positioning settings of the counterpart terminal 17 can be prepared. Furthermore, the insulating wall 33 is used to ensure the insulation distance around the terminal connection portion 16.

[0052] (5) The housing 11 has a base end-side limiting portion 34 located near the base end 22a in the Z direction relative to the fastened portion 22. According to this structure, in the connector 10, at least four walls are provided as a portion restricting the rotation of the counterpart terminal 17: a limiting portion 43 of the nut retaining member 13, a pair of insulating walls 33, and the base end-side limiting portion 34. Thus, by providing multiple portions restricting the rotation of the counterpart terminal 17, at least four circumferential positions of the counterpart terminal 17 can be prepared.

[0053] (6) The limiting part 43 is columnar, extending along the axis L1 of the through hole 23. According to this structure, the rotation of the opposite terminal 17 can be appropriately limited by the columnar limiting part 43.

[0054] This embodiment can be implemented with the following modifications. This embodiment and the following variations can be combined with each other within the scope of technical inconsistency. The number of each of the limiting part 43 and the base-side limiting part 34 is not limited to the above embodiment, and can be appropriately changed according to the structure of the connector 10. In addition, in the above embodiment, the base-side limiting part 34 may be omitted.

[0055] • The shapes of the limiting part 43 and the base end limiting part 34 are not limited to the above-described embodiments. For example, they may also be plate-shaped extending along the X direction when viewed from the Y direction. • In the terminal connection portion 16 of the above embodiment, the angle formed by the protruding portion 21 and the fastened portion 22 may be set to an angle other than 90 degrees.

[0056] • In the above embodiment, the terminal connection portion 16 is formed in a shape that bends from the protrusion portion 21 to the fastened portion 22, but it is not particularly limited to this, and the terminal connection portion 16 may also be in a shape that extends straight without bending.

[0057] The number of busbars 12 provided on the connector 10 is not limited to the above embodiment, and can be appropriately changed according to the structure. The embodiments and modifications disclosed herein are illustrative in all respects, and the invention is not limited to these illustrative examples. That is, the scope of the invention is shown by the claims, and is intended to include all modifications equivalent to and within the scope of the claims. Explanation of reference numerals in the attached figures

[0058] 10 Connectors 11. Shell 12 busbars 13 Nut retaining member 14 Nuts 15 Machine-side connection part 16 Terminal connection section 17. Counterparty terminal 17a Connecting part 17b Cylinder section 18 electrical wires 21. Protruding part 22 Fastened part 22a base 22b Top 23 Through holes 31 Opposite section 31a Guiding section 32 Base 33 Insulating wall 33a Notch 34 Base-end side restriction portion 41 Maintain the main body 41a Nut storage section 41b Side view 41c First contact section 41d Second contact section 41e Hole 42 Extension 43 Restriction Section 44 Fixing part 45. Protrusion 46 Arms 47. Locking part 48 slots B bolt L1 axis L2 centerline

Claims

1. A connector comprising: case; The busbar, partly embedded in the housing, is connected to the other terminal; Nut retaining member, mounted on the housing; and The nut is held in the nut holding member, wherein, The busbar has a terminal connection portion that extends to the outside of the housing. The terminal connection portion has a through hole for inserting a fastening bolt that engages with the nut, and is fastened to the counterpart terminal by the bolt and the nut. The nut retaining member has a limiting portion that restricts rotation of the opposing terminal about the axis of the through hole. The housing has a pair of insulating walls disposed on both sides of the terminal connection portion. The nut retaining member has a pair of fixing portions that respectively engage with the pair of insulating walls.

2. The connector according to claim 1, wherein, The terminal connection portion has: a protrusion extending from the housing along a first direction; and a fastening portion extending from the tip of the protrusion in a second direction intersecting the first direction. The fastened part has the through hole and is fastened to the opposite terminal by the bolt and the nut. The housing has an opposing portion that is opposite to the fastened portion in a direction along the axis of the through hole. The nut retaining member and the nut are disposed between the fastened part and the opposing part.

3. The connector according to claim 2, wherein, The limiting portion is disposed near the top end in the second direction relative to the fastened portion.

4. The connector according to claim 3, wherein, The housing has an insulating wall, which is disposed on both sides of the fastened portion in a third direction perpendicular to both the first and second directions.

5. The connector according to claim 4, wherein, The housing has a base end side restriction portion disposed near the base end in the second direction relative to the fastened portion.

6. The connector according to any one of claims 1 to 5, wherein, The limiting portion is columnar, extending along the axis of the through hole.

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