Connector

Abstract

To provide a connector which can improve assemblability and can prevent erroneous assembly of a terminal.SOLUTION: A connector 1 comprises: a housing 3; a terminal 9 housed in the housing 3; and a fastening member 61 which electrically connects the terminal 9 by fastening. The housing 3 is provided with insertion restriction parts 77 disposed in the vicinity of the terminal 9. The terminal 9 is provided with protrusions 79 which come into contact with the insertion restriction parts 77 at a normal arrangement position of the terminal 9 with respect to the housing 3. The plurality of insertion restriction parts 77 and the plurality of protrusions 79 are provided so that their arrangement positions with respect to an insertion direction of the terminal 9 into the housing 3 may differ.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a connector. [Background technology]

[0002] Conventionally, a known connector includes a housing, bus bars as terminals accommodated in the housing, and bolts as fastening members that electrically connect the bus bars when fastened (see Patent Document 1). In this connector, an inverter is accommodated in the housing, and the bus bars are disposed on the inverter by accommodating the bus bars in the housing. The inverter and the bus bars come into contact and are electrically connected by fastening the bolts. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-78971 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the connector disclosed in Patent Document 1 does not have a structure for restricting the insertion position of the terminals relative to the housing. This makes the position of the terminals relative to the housing unstable, which can lead to the terminals having to be adjusted when fastening the fastening members, reducing assembly ease. Furthermore, incorrect assembly, such as inserting the terminals into the housing in the wrong direction, can occur.

[0005] The present invention has been made in view of the problems inherent in the prior art, and an object of the present invention is to provide a connector that can improve assembly ease and prevent incorrect assembly of terminals. [Means for solving the problem]

[0006] The connector of this embodiment comprises a housing, terminals accommodated in the housing, and fastening members that electrically connect the terminals by fastening, the housing is provided with an insertion restricting portion that is positioned near the terminals, the terminals are provided with protrusions that abut against the insertion restricting portion when the terminals are properly positioned relative to the housing, and the insertion restricting portion and the protrusions are provided in multiple locations so that they are positioned at different positions relative to the insertion direction of the terminals into the housing. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a connector that can improve assembly efficiency and prevent incorrect assembly of terminals. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of a connector according to a first embodiment. FIG. [Figure 2] FIG. 1 is an exploded perspective view of a connector according to a first embodiment. [Figure 3] 3 is a cross-sectional view of the connector according to the first embodiment when the second terminal is placed in a normal position. FIG. [Figure 4] 3 is a cross-sectional view of the connector according to the first embodiment when the second terminal is placed in a normal position. FIG. [Figure 5] 4 is a cross-sectional view of the connector according to the first embodiment when the second terminal is not positioned in a normal position. FIG. [Figure 6] 4 is a cross-sectional view of the connector according to the first embodiment when the second terminal is not positioned in a normal position. FIG. [Figure 7] FIG. 2 is a perspective view of a first housing of the connector according to the first embodiment. [Figure 8] FIG. 2 is an exploded perspective view of a first housing of the connector according to the first embodiment. [Figure 9] FIG. 2 is a perspective view of a second housing of the connector according to the first embodiment. [Figure 10] FIG. 2 is an exploded perspective view of a second housing of the connector according to the first embodiment. [Figure 11] FIG. 2 is a perspective view of a cover of the connector according to the first embodiment. [Figure 12] FIG. 2 is an exploded perspective view of the cover of the connector according to the first embodiment. [Figure 13] 10 is a cross-sectional view of the second terminal of the connector according to the second embodiment when it is positioned in a normal position. FIG. [Figure 14] 10 is a perspective view, partly in section, showing a state in which a second terminal of a connector according to a second embodiment is accommodated in a housing. FIG. [Figure 15] 10 is a partially cross-sectional perspective view of a second terminal of a connector according to a second embodiment when the second terminal is accommodated in a housing. FIG. [Figure 16] 10 is a perspective view, partly in section, illustrating how the front holder is assembled to the housing of the connector according to the second embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] The connector according to the present embodiment will be described in detail below with reference to the drawings. Note that the dimensional proportions in the drawings are exaggerated for the sake of convenience and may differ from the actual proportions.

[0010] (First embodiment) The first embodiment will be described with reference to FIGS.

[0011] As shown in FIG. 1, a connector 1 according to this embodiment is applied to, for example, an electrical component 201 mounted on a vehicle. The connector 1 electrically connects, for example, the electrical component 201 to other electrical components (not shown) mounted on the vehicle, such as a power source or equipment. As shown in FIGS. 1 and 2, the electrical component 201 houses, for example, a mating terminal (not shown) inside a casing 203. The casing 203 is provided with an arrangement portion 205 consisting of a through-hole formed through a wall portion in which the mating terminal is arranged. The connector 1 is assembled to the arrangement portion 205, and the electrical component 201 and the connector 1 are electrically connected.

[0012] As shown in FIGS. 1 to 12, the connector 1 includes a housing 3, a cover 5, a first terminal 7, and a second terminal 9 serving as a terminal.

[0013] As shown in FIGS. 1 to 10, the housing 3 includes a first housing 11 and a second housing 13. The first housing 11 and the second housing 13 are made of a plastic.

[0014] As shown in FIGS. 1, 2, 7, and 8, the first housing 11 is made of an insulating material such as synthetic resin. The first housing 11 is formed in a cylindrical shape, a portion of which can be inserted into the placement portion 205 of the electric component 201. The first housing 11 is provided on its outer periphery with a plurality of (here, two) component fixing portions 15 that protrude radially outward from the placement portion 205 of the electric component 201. A collar 19 is insert-molded into the component fixing portion 15, through which a bolt 17 is inserted to be fastened to a screw hole 207 provided in a casing 203 of the electric component 201. A positioning pin 21 that is inserted into a positioning hole 209 provided in the casing 203 protrudes toward the casing 203 on the surface of the component fixing portion 15 facing the casing 203 of the electric component 201. The component fixing portion 15 positions the first housing 11 relative to the electric component 201 by inserting the positioning pin 21 into the positioning hole 209, with a portion of the first housing 11 inserted into the placement portion 205 of the electric component 201. The component fixing portion 15 fixes the first housing 11 to the electric component 201 by fastening the bolt 17 into the screw hole 207 via the collar 19.

[0015] An inner housing 23 is accommodated inside the first housing 11 from the electric component 201 side. The inner housing 23 is made of an insulating material such as synthetic resin. The inner housing 23 is held inside the first housing 11 via engaging portions (not shown) that engage with each other. A plurality of (two in this example) signal terminals 27 are accommodated inside the inner housing 23. The signal terminals 27 are electrically connected to the terminal ends of a plurality of (two in this example) signal wires 25 that are electrically connected to the electric component 201. A terminal holder 29 that holds the signal terminals 27 inside is assembled to the inner housing 23. Note that a locking lance that engages with and holds the signal terminals 27 may be provided inside the inner housing 23. A packing 31 is assembled in close contact with the outer periphery of the first housing 11 on the electric component 201 side. The packing 31 is held in the first housing 11 by a front holder 33 that is assembled to the first housing 11 via engaging portions (not shown) that engage with each other. When the first housing 11 is assembled to the electric component 201, the packing 31 comes into close contact with the casing 203 of the electric component 201 to seal the gap between the first housing 11 and the electric component 201. A plurality of (here, two) first terminals 7 are accommodated inside the first housing 11 from the side opposite to the electric component 201.

[0016] As shown in FIGS. 1 to 6, 9, and 10, the second housing 13 is made of an insulating material such as synthetic resin. The second housing 13 has an upper portion formed into a cylindrical shape into which a portion of the first housing 11 can be fitted, and a lower portion formed into a cylindrical shape that communicates with the upper portion and extends in a direction perpendicular to the fitting direction of the first housing 11 and the second housing 13. A plurality of (two in this example) second terminals 9 are inserted from below into the lower portion of the second housing 13, and the plurality of second terminals 9 are accommodated in the upper portion of the second housing 13. A plurality of (two in this example) component fixing portions 35 are provided on the outer periphery of the upper portion of the second housing 13, protruding radially outward from the placement portion 205 for the electric component 201. A collar 39 is insert-molded into the component fixing portion 35, through which a bolt 37 is inserted to be fastened to a screw hole 211 provided in the casing 203 of the electric component 201. With the first housing 11 and the second housing 13 fitted together, the component fixing portion 35 fixes the second housing 13 to the electrical component 201 by fastening the bolt 37 to the screw hole 211 via the collar 39. Note that the first housing 11 and the second housing 13 may be provided with engaging portions that engage with each other to maintain the fitted state between the first housing 11 and the second housing 13.

[0017] A front packing 41 is attached in close contact to the upper part of the second housing 13 on the side of the first housing 11. The front packing 41 is held in the second housing 13 by a front holder 43, which serves as a holder and is attached to the second housing 13 via engaging portions (not shown) that engage with each other. The front holder 43 has a plurality of (two in this example) retaining pins 45 protruding toward the second terminals 9 housed in the second housing 13. When the first housing 11 and the second housing 13 are fitted together, the front packing 41 comes into close contact with the first housing 11 and seals the gap between the first housing 11 and the second housing 13. A rear packing 47 is attached in close contact to the upper part of the second housing 13 on the side of the cover 5. The rear packing 47 is held in the second housing 13 by a rear holder 49, which is attached to the second housing 13 via engaging portions (not shown) that engage with each other. When the second housing 13 is covered by the cover 5, the rear packing 47 comes into close contact with the cover 5 to seal the gap between the second housing 13 and the cover 5.

[0018] As shown in FIGS. 1, 2, 11, and 12, the cover 5 is made of an insulating material such as synthetic resin. The cover 5 covers the outer periphery of the upper part of the second housing 13 on the side opposite the electric component 201 and is shaped to close the opening of the second housing 13. The outer periphery of the cover 5 is provided with a plurality of (here, two) component fixing portions 51 that protrude radially outward from the placement portion 205 of the electric component 201 at the same positions as the component fixing portions 35 of the second housing 13. A collar 53 is insert-molded into the component fixing portions 51, through which a bolt 37 is inserted to be fastened to a threaded hole 211 provided in the casing 203 of the electric component 201. With the cover 5 covering the second housing 13, the bolt 37 is fastened to the threaded hole 211 via the collar 53 to fix the cover 5 to the electric component 201. By providing the component fixing portion 51 at the same position as the component fixing portion 35 of the second housing 13, the cover 5 can be fixed with a common bolt 37, thereby reducing the number of components. The second housing 13 and the cover 5 may be provided with an engaging portion that engages with each other, so that the cover 5 can maintain a state in which it covers the second housing 13. The cover 5 is accommodated, for example, by press-fitting, with a shorting terminal 55 that electrically connects the multiple (here, two) signal terminals 27 accommodated in the first housing 11. The shorting terminal 55 electrically connects the multiple signal terminals 27 when the cover 5 is assembled to the electric component 201, and detects that the cover 5 is properly assembled to the electric component 201.

[0019] As shown in FIGS. 7 and 8 , the first terminal 7 is made of a conductive material and is formed, for example, in a columnar shape. A plurality of first terminals 7 (two in this example) are accommodated in the first housing 11. The first terminal 7 is held in its position relative to the first housing 11 by, for example, press-fitting. A mating connection portion 57 and a terminal connection portion 59 formed by screw holes are provided on both ends of the first terminal 7. A mating screw member (not shown) made of, for example, a stud bolt is fastened to the mating connection portion 57, and the first terminal 7 is fixed integrally thereto. A mating terminal of the electrical component 201 is placed in the mating screw member, and a mating nut (not shown) is fastened to the mating screw member. Fastening the mating nut to the mating screw member brings the mating terminal and the first terminal 7 into contact with each other, electrically connecting the mating terminal and the first terminal 7.

[0020] A screw member 63 serving as a fastening member 61, for example, a stud bolt, is fastened to the terminal connection portion 59, and the screw member 63 is fixed integrally with the first terminal 7. By fastening the screw member 63 to the first terminal 7, the screw member 63 can be handled as a single member together with the first terminal 7, reducing the number of parts and simplifying management and handling. Note that the screw member 63 may be formed as a single member continuous with the first terminal 7, for example, by forming the end of the first terminal 7 on the terminal connection portion 59 side into a columnar shape and threading the outer periphery of the columnar portion. The second terminal 9 is disposed on the screw member 63.

[0021] As shown in FIGS. 3 to 6, 9, and 10, the second terminal 9 is made of a conductive material and is formed, for example, in a plate shape. A plurality of (here, two) second terminals 9 are accommodated in the second housing 13. The second terminal 9 is provided with a pin hole 65 penetrating the second terminal 9, into which the retaining pin 45 of the front holder 43 is inserted. By inserting the retaining pin 45 into the pin hole 65, the second terminal 9 is held in a correct position relative to the second housing 13. The plurality of second terminals 9 are electrically connected, for example, by crimping or welding, to the ends of a plurality of (here, two) electric wires 67 electrically connected to other electric components (not shown). A rubber stopper 69 is attached in close contact to the outer periphery of the electric wire 67 on the second terminal 9 side. The rubber stopper 69 is held in the second housing 13 by a lower holder 71 attached to the second housing 13 via engaging portions (not shown) that engage with each other. Lower holder 71 is divided into two halves, and is assembled to electric wire 67 via engaging portions (not shown) that engage with each other. By dividing lower holder 71, the assembly position relative to electric wire 67 can be freely determined, improving assembly efficiency. Rubber plug 69 comes into close contact with second housing 13 when second terminal 9 is accommodated in second housing 13, sealing the gap between second housing 13 and electric wire 67.

[0022] The second terminal 9 has an arrangement hole 73 formed through the second terminal 9 at a position corresponding to the screw member 63 of the first terminal 7 when the first housing 11 and the second housing 13 are fitted together. A nut 75 serving as a fastening member 61 is arranged in the arrangement hole 73, and the nut 75 is rotatably assembled integrally with the second terminal 9 by, for example, crimping. By rotatably assembling the nut 75 integrally with the second terminal 9, the nut 75 and the second terminal 9 can be handled as a single component, reducing the number of parts and simplifying management and handling. In addition, by rotatably assembling the nut 75 to the second terminal 9, the nut 75 can be fastened to the screw member 63 even when the screw member 63 is provided integrally with the first terminal 7. The nut 75 is arranged with a gap from the outer surface of the second terminal 9 and is able to tilt in a direction intersecting the axis of the screw member 63. Therefore, when the second terminal 9 is positioned at an angle, the nut 75 is tilted, so that the axis of the screw member 63 and the axis of the nut 75 can be positioned on approximately the same line, and the nut 75 can be stably fastened to the screw member 63.

[0023] In the fastening member 61 having the screw member 63 and the nut 75, the nut 75 is disposed on the end of the screw member 63 when the first housing 11 and the second housing 13 are fitted together. At this time, if the screw member 63 and the nut 75 come into contact with each other and the second terminal 9 is tilted in a direction intersecting the axis of the screw member 63, the nut 75 also tilts in a direction intersecting the axis of the screw member 63. Due to the tilt of the nut 75, the axis of the screw member 63 and the axis of the nut 75 are positioned substantially on the same line, thereby absorbing the tilt of the second terminal 9. When the nut 75 is fastened to the screw member 63 with the screw member 63 disposed thereon, the first terminal 7 and the second terminal 9 come into contact with each other, and the first terminal 7 and the second terminal 9 are electrically connected to each other.

[0024] Here, if the second terminal 9 is inserted too far or not far enough into the second housing 13, the screw member 63 serving as the fastening member 61 and the nut 75 will not be aligned, and the first terminal 7 and the second terminal 9 will not be electrically connected. In addition, there is a possibility that the second terminal 9 will be inserted in the wrong direction in the second housing 13, resulting in incorrect assembly. Therefore, the second housing 13 and the second terminal 9 are provided with an insertion restriction portion 77 and a protrusion 79 that position the second terminal 9 in the correct position in the second housing 13.

[0025] A plurality of (here, two) insertion restricting portions 77 are provided inside the second housing 13 so as to be positioned on both sides of the second terminal 9 in the width direction. Each of the multiple insertion restricting portions 77 extends toward the side surface of the second terminal 9. The multiple insertion restricting portions 77 are arranged at different positions relative to the insertion direction of the second terminal 9 into the second housing 13.

[0026] A plurality of protrusions 79 (two in this example) are provided so as to protrude outward in the width direction from both widthwise side surfaces of the second terminal 9. Similar to the plurality of insertion restricting portions 77, the plurality of protrusions 79 are arranged at different positions in the insertion direction of the second terminal 9 into the second housing 13.

[0027] As shown in FIG. 3 , when the second terminals 9 are inserted into the second housing 13 in the correct orientation, the second terminals 9 can be inserted into the second housing 13 until the protrusions 79 respectively contact the insertion restricting portions 77. When the protrusions 79 respectively contact the insertion restricting portions 77, the second terminals 9 are accommodated in the correct arrangement position in the second housing 13. Therefore, the fastening member 61 can be fastened without adjusting the arrangement position of the second terminals 9, improving the ease of assembly. In addition, when the protrusions 79 respectively contact the insertion restricting portions 77, the retaining pins 45 of the front holder 43 can be inserted into the pin holes 65 of the second terminals 9, as shown in FIG. 4 . Therefore, the front holder 43 can be assembled to the second housing 13, and it can be detected that the second terminals 9 are arranged in the correct position.

[0028] As shown in FIG. 5 , when the second terminal 9 is inserted backward into the second housing 13, the protrusion 79 located at the front side in the insertion direction abuts against the insertion restricting portion 77 located at the rear side in the insertion direction. When the protrusion 79 located at the front side in the insertion direction abuts against the insertion restricting portion 77 located at the rear side in the insertion direction, the second terminal 9 is not accommodated in the correct position in the second housing 13. This prevents the fastening member 61 from being fastened, and it is possible to detect that the second terminal 9 has been improperly assembled. In addition, when the protrusion 79 located at the front side in the insertion direction abuts against the insertion restricting portion 77 located at the rear side in the insertion direction, as shown in FIG. 6 , it is impossible to insert the retaining pin 45 of the front holder 43 into the pin hole 65 of the second terminal 9. This prevents the front holder 43 from being assembled to the second housing 13, and it is possible to detect that the second terminal 9 has been improperly assembled.

[0029] As an example of assembling such a connector 1, first, the first housing 11, the second housing 13, and the cover 5 are respectively assembled.

[0030] When assembling the first housing 11, first, the signal terminals 27 provided at the ends of the signal wires 25 are accommodated in the inner housing 23, and the terminal holder 29 is assembled. Next, the inner housing 23 and the first terminals 7 are accommodated in the first housing 11. Next, the screw members 63 are fastened to the first terminals 7. Note that the first terminals 7 to which the screw members 63 have been fastened in advance may be accommodated in the first housing 11. Then, the packing 31 is attached to the first housing 11, and the front holder 33 is assembled, completing the assembly of the first housing 11.

[0031] When assembling the second housing 13, first, nuts 75 are attached to the second terminals 9, and the second terminals 9 are attached to the ends of the electric wires 67 to which rubber plugs 69 are attached. Next, the second terminals 9 are accommodated in the second housing 13, and the lower holder 71 is assembled. At this time, if the second terminals 9 are oriented correctly, the multiple protrusions 79 abut against the multiple insertion restriction portions 77, respectively, and the second terminals 9 are accommodated in the correct positions in the second housing 13. On the other hand, if the second terminals 9 are oriented in the wrong direction, the protrusions 79 on the front side in the insertion direction abut against the insertion restriction portion 77 on the rear side in the insertion direction, and the second terminals 9 are not accommodated in the correct positions in the second housing 13. Next, the front packing 41 and the rear packing 47 are attached to the second housing 13, and the front holder 43 and rear holder 49 are assembled, completing the assembly of the second housing 13. At this time, if the second terminals 9 are positioned in the correct position, the retaining pins 45 are inserted into the pin holes 65, and the front holder 43 can be assembled to the second housing 13. On the other hand, if the second terminals 9 are not positioned in the correct position, the retaining pins 45 cannot be inserted into the pin holes 65, and the front holder 43 cannot be assembled to the second housing 13.

[0032] In assembling the cover 5, the short terminal 55 is attached to the cover 5, and then the assembling of the cover 5 is completed.

[0033] When assembling the connector 1, first, the first housing 11 is placed in the placement portion 205 of the electric component 201 so that the positioning pins 21 are inserted into the positioning holes 209. Next, the bolts 17 are inserted into the collars 19 of the component fixing portion 15 of the first housing 11 and fastened into the threaded holes 207, thereby assembling the first housing 11 to the electric component 201. Next, the second housing 13 is placed inside the upper part of the second housing 13 so that the first housing 11 fits in. Next, the nuts 75 are fastened to the screw members 63, electrically connecting the first terminals 7 and the second terminals 9. Next, the cover 5 is attached to the second housing 13. Then, the bolts 37 are inserted into the collars 39 of the component fixing portion 35 of the second housing 13 and the collars 53 of the component fixing portion 51 of the cover 5 and fastened into the threaded holes 211, completing the assembly of the connector 1.

[0034] Such a connector 1 includes a housing 3, second terminals 9 as terminals accommodated in the housing 3, and fastening members 61 that electrically connect the second terminals 9 by fastening. The housing 3 is also provided with an insertion restricting portion 77 that is disposed near the second terminals 9. The second terminals 9 are also provided with protrusions 79 that come into contact with the insertion restricting portion 77 when the second terminals 9 are properly positioned relative to the housing 3. A plurality of insertion restricting portions 77 and protrusions 79 are provided so that their positions differ relative to the insertion direction of the second terminals 9 into the housing 3.

[0035] When the second terminal 9 is inserted into the second housing 13 in the correct orientation, the second terminal 9 can be inserted into the second housing 13 until the multiple protrusions 79 abut against the multiple insertion restriction portions 77, respectively. When the multiple protrusions 79 abut against the multiple insertion restriction portions 77, the second terminal 9 is accommodated in the correct position in the second housing 13. Therefore, the fastening member 61 can be fastened without adjusting the position of the second terminal 9, improving assembly ease. On the other hand, when the second terminal 9 is inserted into the second housing 13 in the wrong orientation, the protrusion 79 located on the front side in the insertion direction abuts against the insertion restriction portion 77 located on the rear side in the insertion direction. When the protrusion 79 located on the front side in the insertion direction abuts against the insertion restriction portion 77 located on the rear side in the insertion direction, the second terminal 9 is not accommodated in the correct position in the second housing 13. Therefore, the fastening member 61 cannot be fastened, and it is possible to detect that the second terminal 9 has been improperly assembled.

[0036] Therefore, in such a connector 1, the assembly efficiency can be improved and incorrect assembly of the second terminal 9 can be prevented.

[0037] Additionally, a front holder 43 is attached to the housing 3 as a holder for holding the second terminal 9 relative to the housing 3. The second terminal is provided with a pin hole 65. The front holder 43 is provided with a retaining pin 45 that is inserted into the pin hole 65 when the second terminal 9 is in the correct position relative to the housing 3.

[0038] When the second terminals 9 are positioned in the correct position, the retaining pins 45 of the front holder 43 can be inserted into the pin holes 65 of the second terminals 9. Therefore, the front holder 43 can be assembled to the housing 3, and it can be detected that the second terminals 9 are positioned in the correct position. On the other hand, when the second terminals 9 are not positioned in the correct position, the retaining pins 45 of the front holder 43 cannot be inserted into the pin holes 65 of the second terminals 9. Therefore, the front holder 43 cannot be assembled to the housing 3, and it can be detected that the second terminals 9 are improperly assembled.

[0039] (Second embodiment) The second embodiment will be described with reference to FIGS.

[0040] The connector 101 of this embodiment is provided with a removal prevention portion 103 on the housing 3 that can engage with the protrusion 79 in the removal direction of the second terminal 9 from the housing 3 when the second terminal 9 is in the correct position relative to the housing 3.

[0041] Note that the same symbols are used for the same configurations as in the first embodiment, and the functional explanations will be omitted as reference will be made to the first embodiment, but since the configurations are similar, the actions and effects obtained are the same.

[0042] As shown in FIGS. 13 to 16 , the second housing 13 serving as the housing 3 is provided with a detachment restricting portion 103. A plurality of detachment restricting portions 103 (two in this example) are provided inside the second housing 13, each located on both sides of the second terminal 9 in the width direction. The plurality of detachment restricting portions 103 are disposed at positions corresponding to the plurality of insertion restricting portions 77, spaced apart from the insertion restricting portions 77 so as to form a gap between the insertion restricting portions 77 and the detachment restricting portions 103, allowing placement of the protrusions 79. The detachment restricting portion 103 protrudes in a direction perpendicular to the insertion direction of the second terminal 9. The detachment restricting portion 103 has an inclined surface 105 formed on the rear side in the insertion direction of the second terminal 9 into the second housing 13, which slopes upward toward the front side in the insertion direction. The detachment restricting portion 103 has an engaging surface 107 formed on the front side in the insertion direction of the second terminal 9 into the second housing 13, which is a vertical surface perpendicular to the insertion direction.

[0043] When the second terminal 9 is inserted into the second housing 13, the inclined surface 105 of the removal prevention portion 103 slides against the protrusion 79, causing the second terminal 9 to move over the removal prevention portion 103. After the second terminal 9 has climbed over the removal prevention portion 103, it is positioned in the correct position in the second housing 13, with the protrusion 79 being able to engage with the locking surface 107 of the removal prevention portion 103. When the protrusion 79 engages with the locking surface 107, the second terminal 9 is prevented from coming off the second housing 13, and the second terminal 9 can be held in the correct position in the second housing 13. This allows the fastening member 61 to be stably fastened, maintaining electrical connection reliability. Additionally, the second terminal 9 can be held in the correct position in the second housing 13 without inserting the retaining pin 45 of the front holder 43 into the pin hole 65 of the second terminal 9. Therefore, when the second terminal 9 cannot be removed from the second housing 13, it can be detected that the second terminal 9 is positioned in the correct position. In addition, due to the engagement between the protrusion 79 and the removal prevention portion 103, for example, the retaining pin 45 can be inserted into the pin hole 65 without an operator having to hold the second terminal 9, thereby improving the ease of assembling the front holder 43 to the second housing 13.

[0044] In such a connector 101, the housing 3 is provided with a removal prevention portion 103 that can engage with the protrusion 79 in the direction in which the second terminal 9 is removed from the housing 3 when the second terminal 9 is in the correct position relative to the housing 3.

[0045] The engagement between the protrusion 79 and the removal prevention portion 103 allows the second terminal 9 to be held in the correct position in the housing 3. This allows the fastening member 61 to be stably fastened, maintaining the reliability of the electrical connection. In addition, if the second terminal 9 cannot be removed from the housing 3, it can be detected that the second terminal 9 is correctly positioned.

[0046] Although the present embodiment has been described above, the present embodiment is not limited to this, and various modifications are possible within the scope of the gist of the present embodiment.

[0047] For example, the screw member is integrally provided with the first terminal and the nut is rotatably assembled to the second terminal, but this is not a limitation. The screw member may be integrally provided with the second terminal and the nut may be rotatably assembled to the first terminal. Alternatively, the nut may be integrally provided with one of the first terminal and the second terminal, and the screw member may be rotatably assembled to the other terminal. In addition, while the fastening member includes a screw member and a nut, this is not a limitation. The fastening member may consist of only a screw member. [Explanation of symbols]

[0048] 1,101 connectors 3. Housing 9 2nd terminal (terminal) 43 Front holder (holder) 45 retaining pin 61 Fastening members 65 pinholes 77 Insertion restriction part 79 Protrusion 103 Withdrawal Control Department

Claims

1. Housing and a terminal accommodated in the housing; a fastening member that electrically connects the terminals when fastened; Equipped with The housing is provided with an insertion restriction portion disposed near the terminal, The terminal is provided with a protrusion that abuts against the insertion restriction portion when the terminal is properly positioned relative to the housing, A connector in which a plurality of the insertion restricting portions and the protruding portions are provided so as to be positioned at different positions relative to the direction in which the terminals are inserted into the housing.

2. a holder is attached to the housing to hold the terminal relative to the housing; The terminal is provided with a pin hole, 2. The connector according to claim 1, wherein the holder is provided with a retaining pin that is inserted into the pin hole when the terminal is in a normal position relative to the housing.

3. 3. The connector according to claim 1, wherein the housing is provided with a removal restriction portion that is engageable with the protrusion in a direction in which the terminal is removed from the housing when the terminal is in a normal position relative to the housing.

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