JP2015516655A - Plug-in connector set, plug-in connector, and mating plug-in connector of plug-in connector - Google Patents

Abstract

Described here is a plug-in connector set comprising a plug-in connector (1) and a mating plug-in connector (7), the plug-in connector (1) and the mating plug-in connector. Each of (7) includes an insulator housing (2, 8) and a plurality of electrode members (5, 10) mounted in the insulator housing (2, 8). The plug-in connector (1) and the mating plug-in connector (7) correspond to each other when the electrode members (5, 10) mounted on them are electrically connected to each other when they are inserted and coupled to each other. It is configured as a connector, and the insulator housing (2, 8) has a relative position between the plug-in connector (1) and the mating plug-in connector (7). Only when the plug-in connector (1) and the Having a coding contour shape to allow insertion coupling between the hand-side insertion type connector (7). The pluggable connector (1) and the mating pluggable connector (7) have at least two functional sections (11a, 11b, 11c). Each of these functional sections has at least two electrode members (5, 10) arranged adjacent to each other in one insulator housing part, and two functional sections (11a, 11b, 11c), the distance between the adjacent electrode members (5, 10) is different from the distance between the adjacent electrode members (5, 10) in each functional section. It is. [Selection] Figure 2

Description

  The present invention relates to a plug-in connector set composed of a plug-in connector and a mating plug-in connector. The plug-in connector set includes: the plug-in connector and the mating plug-in connector are insulated from each other. A body housing and a plurality of electrode members provided in the insulator housing, and the plug-in connector and the mating plug-in connector are inserted and coupled to each other. The electrode members mounted on them are configured as connectors corresponding to each other, and the insulator housing has a relative position between the plug-in connector and the mating plug-in connector only. Only when it is in the insertable relative position, it has a coding contour shape that allows insertion coupling between the insertion-type connector and the mating insertion-type connector.

  The present invention further relates to a plug-in connector and a mating plug-in connector corresponding to the plug-in connector. The present invention further includes an insulator housing having an outer peripheral portion having a required contour shape and a plurality of electrode members mounted in the insulator housing, and the outer wall portion of the insulator housing has the required contour shape. The present invention relates to a plug-in connector in which a plurality of box holes are formed.

  As this type of plug-in connector set comprising a plug-in connector and a mating plug-in connector corresponding to the plug-in connector, various types of plug-in connector sets are known.

  German patent publication DE 10 2008 049 574 A1 discloses a plug-in type electrical connector set comprising a connection electrode device and a plug-in type electrical connector. It is for electrical connection to the device and is equipped with a coding system to prevent improper connection. The coding system consists of three coding devices independent of each other. Each coding device is composed of an insertion concave portion of the housing of the connection electrode device and an insertion convex portion of the housing of the plug-in type electrical connector, and the shape of the insertion concave portion and the shape of the insertion convex portion, Coding is performed by using asymmetric shapes corresponding to each other. In addition to this, it has also been proposed to use a coding device using ridges and grooves, and this coding device is provided in the box hole formed in the outer wall portion of the insulator housing with the coding ridges and A coding groove is provided. Furthermore, it has also been proposed to use a coding device using a replaceable contour forming member, which is formed in a box hole of a plug-in connector and / or in a box hole of a connection electrode device. A coding piece made of a member is arbitrarily inserted.

  Also, European Patent Publication EP 1 841 014 B1 discloses an electrical connector in which a box hole is formed in a protruding tubular portion. In order to prevent erroneous insertion and connection, a closing member that closes the box hole is attached to the tubular portion. Similarly, a box hole is formed in the mating insertion type connector, and a coding piece having a radially enlarged portion is attached as a closing member. The coding pieces can be removed using a pliers, thereby allowing individual coding.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an improved plug-in connector set including a plug-in connector and a mating plug-in connector. The plug-in connector set can prevent erroneous plug connections even when multiple functional sections are used in various combinations, especially in systems where the number of poles varies and the combination of functional sections varies. This is a plug-in type connector set that can prevent an inappropriate plug-in connection with a shifted insertion position.

  The above object is achieved by a plug-in connector set comprising a plug-in connector having the features described in claim 1 and a mating plug-in connector, and the plug-in connector related to such plug-in connector set. And achieved by a mating pluggable connector.

  The dependent claims describe particularly advantageous embodiments of the invention.

  The plug-in connector set proposed here is a plug-in connector set of the type described in the premise of claim 1, wherein the plug-in connector and / or the mating plug-in connector are at least two functional sections. Each of the functional sections has at least two electrode members disposed adjacent to each other in one insulator housing portion and spans two adjacent functional sections. The distance between the electrode members adjacent to each other is different from the distance between the electrode members adjacent to each other in each functional section.

  According to this configuration, the insertion position of the pluggable connector is shifted from the housing portion assigned to one certain functional section, and the pluggable connectors are adjacent to each other across the boundary of the functional section. It is reliably prevented from being inserted and coupled across the two functional sections. As a means for this, considering the pitch in one functional section, the pitch between the electrode members across the two functional sections is made different from the pitch between the electrode members in the individual functional sections. -ing

  As such a functional section, for example, it is provided with at least two electrode members adjacent to each other, and these electrode members are used for supplying a power supply voltage, and are also disposed adjacent to each other. There is a functional section that includes at least two electrode members and uses these electrode members for data line connection. Since the pitch between the electrode members in the two functional sections is different from the pitch between the electrode members in the individual functional sections, the power supply voltage supplied from the connection network is applied. A functional section that is used to supply data can be plugged into a damaged functional section if high voltage is applied, and vice versa. Are reliably prevented from being inserted into the function section to which the power supply voltage is to be applied.

  Furthermore, according to the above configuration, a plurality of groups (for example, three groups) of plug-in connector sets are used in the entire system, and plug-in connection between plug-in connector sets of different groups can be performed. It can be made impossible. In that case, the plug-in connector and the mating plug-in connector of the plug-in connector set of the first group can be connected to each other regardless of the number of poles of the connectors, It is also possible to code such a combination that causes a problem due to erroneous insertion coupling, so that the insertion coupling cannot be performed. It is also possible for at least one other group of pluggable connector sets. On the other hand, it may not be possible to connect the pluggable connector of the pluggable connector set of the group that is not used in the whole system or the mating pluggable connector regardless of the number of poles. it can.

  These can also be extended to apply to individual groups of plug-in connector sets contained within the entire system by using a coding member formed as a separate member. it can.

  In addition to or instead of the above, the insulator housing of the plug-in connector can be used to easily and reliably code the plug-in connector set. A plurality of box holes formed by outer wall portions having a required contour shape, and a plurality of coding protrusions provided in the inner space of the box holes and projecting in the insertion direction and having the required contour shape. In addition, the insulator housing of the mating plug-in connector has a plurality of coding protrusions having a plurality of required contour shapes, and corresponding coding protrusions are fitted in a single insertion-possible position. A coding hole should be provided.

  Further, as a means for performing coding, that is, for preventing improper insertion coupling, not only the box hole having the required contour shape is provided, but in addition, the internal space of the box hole is further provided. In addition, it is preferable to provide a coding protrusion having a required contour shape, so that even if it is a plug-in connector that conforms to the contour shape of the box hole, a predetermined condition regarding the insertion coupling is satisfied It is possible to prevent the insertion coupling. In particular, as a further means, by providing a coding projection having a required contour shape in the internal space of the box hole, an insertable connector and a counterpart insertable connector in which the contour shapes of the respective box holes are compatible with each other Even in a system comprising the above, by using these coding protrusions having a required contour shape, it is possible to perform coding for preventing insertion coupling in relation to the arrangement of a plurality of functional sections.

  Particularly when the plurality of coding protrusions having the required contour shape are provided in the inner spaces of the plurality of box holes, the required contour shape is formed rather than directly forming the coding protrusions on the inner surface of the outer wall portion having the required contour shape. It is good to provide in the said several box hole as a shape different from the outline shape of the said box hole apart from the inner surface of the outer wall part which has.

  It is particularly advantageous if the plurality of electrode members are partially received by the plurality of coding protrusions (in other words, embedded). In this way, the coding protrusion provided in the internal space of the box hole can be used not only for coding the plug-in connector set but also as a support portion for stably supporting the electrode member. it can.

  Further, the plurality of coding protrusions include a longitudinally extending portion that extends in a direction in which the plurality of electrode members are arranged, and a widthwise extending portion that extends in a direction orthogonal to the direction. This is particularly advantageous. Clear coding can be performed by the extending portion in the width direction. That is, it can be considered that the widthwise extending part is provided on the left side of the longitudinally extending part to form a coding projection having an L-shaped cross section. Moreover, it is good also considering the cross-sectional shape as a T-shaped coding protrusion by providing the width direction extension part in the center of a longitudinal direction extension part. Further, by providing the width direction extending portion on the right side of the longitudinal direction extending portion, it is possible to form a coding protrusion having a reverse L-shaped cross section.

  As described above, by providing the width direction extension portion at a predetermined position of the longitudinal direction extension portion, it is possible to easily perform a plurality of (for example, three) types of coding using a compact and durable coding protrusion. it can. Further, since the position of the longitudinally extending portion is not changed regardless of the coding by the widthwise extending portion, the longitudinally extending portion can be used as a support portion that fixes and supports the electrode member. it can.

  The following configuration is particularly advantageous, in which the insulator housing portions of the functional section of the mating plug-in connector are connected to each other via a connecting portion, and the insertion is performed. A cutout portion corresponding to the connecting portion is formed in an outer wall portion of the insulator housing portion of the functional section of the functional connector, and the cutout portion includes the pluggable connector and the mating pluggable connector. Are inserted and coupled at a single insertable position so that the connecting portion corresponding to the notch can be accommodated.

  In this configuration, the connecting parts connecting the individual functional sections of the insulator housing of the mating plug-in connector are for coding, i.e. to prevent improper insertion coupling. It is used as a further means. The insulator housing has a plurality of insulator housing parts spaced apart from each other, and the insulator housing parts are connected to each other only through the connecting part.

  Further, the contour shape of each outer wall portion of the plurality of insulator housing parts of the plug-in connector is such that the connecting portion of the mating plug-in connector is fitted into a notch formed in the outer wall portion. By doing so, it is set as the outline shape that the said insertion type connector and the said other party insertion type connector become a correct relative position.

  Further, the plurality of electrode members are configured such that a bifurcated electrode member having a pair of clamping protrusions opposed to each other and a flat blade electrode member corresponding to the bifurcated electrode member form a pair. It is advantageous if In this configuration, the bifurcated electrode member is provided in one component of the plug-in connector set (for example, in the mating plug-in connector) and has a flat blade shape corresponding thereto. An electrode member component is provided on the other component of the pluggable connector set (for example, on the pluggable connector).

  Further, the bifurcated electrode member is arranged in a direction orthogonal to the insertion direction in the insulator housing provided with the bifurcated electrode member, and the blade electrode member is inserted and joined. A configuration in which the pair of sandwiching protrusions are inserted into a gap defined between the pair of sandwiching protrusions of the bifurcated electrode member from a direction orthogonal to a plane in which the pair of sandwiching protrusions is stretched (in other words, defined) It is preferable that According to this configuration, the blade-shaped electrode member is not inserted in the direction from the front end of the bifurcated electrode member toward the root of the sandwiching protrusion, which is a general insertion direction, but in this direction. Inserted horizontally. Here, the “lateral direction” does not mean only the insertion direction perpendicular to the plane on which the pair of clamping protrusions of the bifurcated electrode member is stretched, but forms an angle with the plane. It also means an oblique insertion direction.

  In order to particularly strengthen the protection function related to the connection with the protective ground electrode (PE electrode), the vertical dimension of the coding protrusion and the coding hole in the vicinity of the protective ground electrode (PE electrode) is set to the vertical direction of other regions. It should be longer than the directional dimension. By doing so, for example, the occurrence of a short-circuit state due to the connection between the PE electrode and an electrode to which another voltage is applied can be simplified and prevented in a very reliable manner.

  Furthermore, it is advantageous to have a coding member which is formed as a separate member and which has at least one protruding coding protrusion which can be inserted into the box hole. Thereby, the internal space of the box hole accessed through the coding hole can be arbitrarily closed by its coding projection, which is the same as coding by a normal coding method and thus further protection means Is obtained. This is particularly advantageous in cases where a given functional section is arbitrarily used for a function that is different from the function in which the functional section is normally used.

  Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The drawings are as follows.

It is the figure which looked at the cross section of the box-shaped three-pole insertion-type connector provided with only one function section from the bottom face side. It is the figure which looked at the box side 3 pole other party insertion type connector provided with only one functional section corresponding to the insertion type connector shown in Drawing 1a from the upper surface side. It is the figure which looked at the cross section of the 5-pole pluggable connector provided with two function sections from the bottom face side. It is the figure which looked at the 5 pole other party pluggable connector provided with the two function sections corresponding to the pluggable connector shown in FIG. 2a from the upper surface side. It is the figure which looked at the cross section of the 5-pole pluggable connector provided with two function sections from the bottom face side. It is the figure which looked at the 5 pole other party insertion type connector provided with the two function sections corresponding to the insertion type connector shown in FIG. 3a from the upper surface side. It is the figure which looked at the cross section of the 7-pole pluggable connector provided with three function sections from the bottom face side. 4b is a top view of a 7-pole mating plug connector with three functional sections corresponding to the plug connector shown in FIG. 4a. FIG. It is the figure which looked at the cross section of the 3 pole insertion-type connector provided with only one function section which concerns on another embodiment from the bottom face side. FIG. 5b is a top view of a three-pole mating plug-in connector with only one functional section corresponding to the plug-in connector shown in FIG. 5a. It is the figure which looked at the cross section of the 5 pole insertion-type connector provided with the two function sections which concern on another embodiment from the bottom face side. 6b is a top view of a five-pole mating plug-in connector with two functional sections corresponding to the plug-in connector shown in FIG. 6a. It is the figure which looked at the cross section of the 5 pole insertion-type connector provided with the two function sections which concern on another embodiment from the bottom face side. It is the figure which looked at the 5 pole other party insertion type connector provided with two functional sections corresponding to the insertion type connector shown in FIG. 7a from the upper surface side. It is the figure which looked at the cross section of the 7-pole pluggable connector provided with the three function sections which concern on another embodiment from the bottom face side. It is the figure which looked at the 7 pole other party pluggable connector provided with the three function sections corresponding to the pluggable connector shown to FIG. 8a from the upper surface side. It is the figure which looked at the cross section of the 3 pole insertion-type connector provided with only one function section which concerns on another embodiment from the bottom face side. It is the figure which looked at the 3 pole other party insertion type connector corresponding to the insertion type connector shown to FIG. 9a from the upper surface side. It is the figure which looked at the cross section of the 5 pole insertion-type connector provided with the two function sections which concern on another embodiment from the bottom face side. FIG. 10b is a top view of a five-pole mating plug connector with two functional sections corresponding to the plug connector shown in FIG. 10a. It is the figure which looked at the cross section of the 5 pole insertion-type connector provided with the two function sections which concern on another embodiment from the bottom face side. It is the figure which looked at the other party pluggable connector of 5 poles provided with two functional sections corresponding to the pluggable connector shown to FIG. 11a from the upper surface side. It is the figure which looked at the cross section of the 7-pole pluggable connector provided with the three function sections which concern on another embodiment from the bottom face side. It is the figure which looked at the 7 pole other party insertion type connector provided with the three functional sections corresponding to the insertion type connector shown to FIG. 12a from the upper surface side. It is the figure which looked at the cross section of the 3 pole pluggable connector provided with only one function section, and the 5 pole pluggable connector provided with two function sections from the bottom face side. It is the figure which looked at the 3 pole other party insertion type connector corresponding to the insertion type connector shown to FIG. 13a, and the 5 pole other party insertion type connector from the upper surface side. FIG. 2b is a perspective view of a five-pole pluggable connector with two functional sections configured similarly to the embodiment shown in FIG. 2a. It is a perspective view of the other party insertion type connector of the structure similar to the embodiment shown to FIG. 2b corresponding to the insertion type connector shown to FIG. 14a. FIG. 14b is a top view of the pluggable connector shown in FIG. 14a. It is a top view of the other party insertion-type connector shown in FIG. 14b. It is a perspective view of the coding member inserted and used for the box hole of the other party insertion type connector. It is the perspective view which showed the place which inserts the coding member shown in FIG. 16 in the box hole of the other party insertion type connector. It is a fracture view of the other party insertion type connector which inserted a coding member.

  FIG. 1a shows a cross-section of a three-pole plug-in connector 1 as viewed from the bottom side, and this plug-in connector 1 includes an insulator housing 2 having a required contour shape. Three box holes 3 having a rectangular parallelepiped shape are formed in the insulator housing 2, and the vertical dimension of the central box hole 3 is larger than the vertical dimension of the box holes 3 on both sides.

  A plurality of coding projections 4 each having a required contour shape are further provided in the internal spaces of the plurality of box holes 3, and the coding projections 4 are made of an insulator and are formed integrally with the insulator housing 2. Has been. As is apparent from the figure, the coding protrusions 4 having the required contour shapes have different contour shapes. The left coding protrusion 4 has a longitudinally extending portion 32 located in the center of the internal space, and a widthwise extending portion 33 extends from the left side of the longitudinally extending portion 32, thereby The cross-sectional shape is L-shaped. The central coding projection 4 has a width-direction extending portion 33 extending upward from the center of the longitudinal-direction extending portion 32, thereby forming a T-shaped cross section.

  The right-side coding protrusion 4 has a width-direction extending portion 33 extending from the right side of the longitudinal-direction extending portion 32, whereby the cross-sectional shape is an inverted L shape.

  Each of the coding protrusions 4 is provided with a flat plate electrode member 5, and the flat plate electrode member 5 protrudes further upward from the top of the coding protrusion 4.

  Further, as is apparent from the drawing, the box holes 3 are connected to each other through the notch 6.

  Shown in FIG. 1b is a mating plug-in connector 7 corresponding to the plug-in connector 1 shown in FIG. 1a. The mating-side plug-in connector 7 also includes an insulator housing 8 having a required contour shape. The contour shape of the insulator housing 8 is that of the plug-in connector 1 including the box hole 3 and the notch portion 6. This corresponds to the contour shape of the insulator housing 2. Thus, since the contour shape corresponds, the insulator housing 8 having the required contour shape of the mating plug-in connector 7 can be fitted into the plurality of box holes 3 of the plug-in connector 1. Yes.

  Furthermore, the insulator housing 8 having the required contour shape includes a plurality of coding holes 9 corresponding to the plurality of coding protrusions 4, and the bifurcated electrode member 10 is disposed in each of the coding holes 9. It protrudes. In this way, the flat electrode member 5 protruding from the coding protrusion 4 of the plug-in connector 1 is interposed between the pair of sandwiching protrusions of the bifurcated electrode member 10 of the mating plug-in connector 7. The two electrode members are inserted so that they can be electrically connected.

  FIG. 2a shows the pluggable connector 1 with the extension and a further functional section 11b added to the pluggable connector 1 shown in FIG. 1a. As is apparent from the figure, a two-pole functional section 11b adjacent to the left side of the three-pole functional section 11a is provided. The tripolar functional section 11a is used as, for example, a functional section for supplying a power supply voltage. In this case, for example, the central electrode member is used as a protective ground electrode PE, the right electrode member is used as a zero potential electrode N, and the left side. This electrode member is used as the supply potential electrode L. On the other hand, the left functional section 11b is used as a functional section for supplying data, for example, and in this case, for example, the two electrode members are used as two data electrodes DA + and DA− in the DALI control network.

  The insulator housing portion of the left functional section 11b has a required contour shape like the insulator housing portion of the right functional section 11a, and is integrally formed with the insulator housing portion of the right functional section 11a. It is connected. Further, in the inner space of the box hole 3 of the left functional section 11b, a coding protrusion 4 having a required contour shape is provided similarly to the right functional section 11a.

  In order to prevent improper insertion coupling and in particular to prevent this insertion type connector from being coupled to an insertion position that is offset from the correct position of the mating insertion type connector. The distance between the electrode member 5 outside the functional section 11a and the electrode member 5 outside the functional section 11b, which is a matching electrode member, is set between the electrode members 5 adjacent to each other in the individual functional sections 11a and 11b. It is larger than the interval. As is apparent from the figure, the pitch of the electrode members 5 in the individual functional sections 11a and 11b, that is, the distance between the electrode members 5 is all the same. On the other hand, the pitch of the electrode members 5 over the two functional sections 11a and 11b, that is, the distance between the electrode members 5 adjacent to each other over the two functional sections 11a and 11b adjacent to each other is determined by each function. The intervals between the electrode members 5 adjacent to each other in the sections 11a and 11b are different from each other.

  FIG. 2b shows a top view of the mating plug connector 7 having 5 poles corresponding to the plug connector 1 shown in FIG. 2a. As is apparent from the figure, the functional sections 11 a and 11 b are connected to each other via the connecting portion 12. On the other hand, the insulator housing 2 of the plug-in connector 1 is provided with a corresponding cut-out portion 60 for accommodating the connecting portion 12, and the cut-out portion 60 is formed at a position corresponding to the plug-in connector 1 and the counterpart side. As a forming position that allows insertion coupling between the insertion-type connector 1 and the mating insertion-type connector 7 only when the relative position with the insertion-type connector 7 is the only insertion-possible relative position. is there.

  Shown in FIG. 3a is a five-pole pluggable connector according to another embodiment, which has a further functional section 11c on the right side of the pluggable connector 1 shown in FIG. 1a. Attached.

  In the connector set composed of the plug-in connector and the mating plug-in connector according to each of the embodiments shown in FIGS. 1 to 3, there is no risk of improper plug coupling. The risk of improper insertion and coupling is that a plurality of box holes 3 formed by the insulator housing 2 having a required contour shape and a plurality of required contours provided one by one in the internal space of the box holes 3. It may not be possible to cope only with the coding protrusion 4 having a shape. Therefore, the interval between the electrode members 5 adjacent to each other across the first function section 11a and the third function section 11c is made larger than the pitch of the electrode members 5 in the individual function sections 11a and 11c. It is. That is, the distance between the electrode members 5 of the first functional section 11a and the electrode members 5 of the third functional section 11c that are adjacent to each other is determined between the electrode members 5 that are adjacent to each other in the individual functional sections 11a and 11c. It is larger than the interval between them. This prevents accidental insertion and coupling to an insertion position that deviates from the correct insertion position.

  Further, as is apparent from the drawing, the coding protrusion 4 of the third functional section 11c has an inverted L-shaped cross section, whereas the left functional section 11b in the embodiment shown in FIG. 2a. The coding protrusion 4 has an L-shaped cross section. In this way, inappropriate insertion coupling is also prevented by making the contour shape of the coding protrusion 4 different, and more specifically, for example, since it is used for data transmission, a high voltage is applied. If the damaged function section 11b on the left side is damaged and the function section 11c on the right side used for supplying the backup power supply voltage by the voltage lines (L ′ line and N ′ line), for example, is erroneously inserted and coupled. Is reliably prevented.

  FIG. 3b shows a mating plug-in connector 7 corresponding to the plug-in connector 1 shown in FIG. 3a. As is apparent from the figure, in this mating plug-in connector 7, two insulator housing portions corresponding to the two functional sections 11 a and 11 c are connected to each other via the connecting portion 12. In the mating plug-in connector 7, the two insulator housing portions are formed as portions having independent required contour shapes.

  Shown in FIG. 4a is a 7-pole plug-in connector 1 according to another embodiment, which constitutes one overall system in relation to the above-described embodiment. To do. The plug-in connector 1 according to this embodiment includes three functional sections 11a, 11b, and 11c arranged in parallel with each other, and the central functional section 11a includes an L pole, a PE pole, and an N pole. The function section 11b on the left side is used for supplying data by the DA + data supply pole and the DA-data supply pole, and the function section 11c on the right side is used for supplying the main power supply voltage by the pole. Used to supply the backup power supply voltage by the 'pole and N' pole.

  In addition, this embodiment is configured by combining the embodiment shown in FIG. 2a and the embodiment shown in FIG. 3a.

  FIG. 4b shows a mating plug-in connector 7 corresponding to this plug-in connector. As is apparent from the drawing, the individual function sections 11 a, 11 b, 11 c are also connected to each other via the connecting portion 12 in this mating plug-in connector 7, thereby forming an integral body consisting of one insulator housing 8. The other party pluggable connector is constituted.

  The embodiment shown in FIGS. 1a to 4b constitutes a first group of pluggable connector sets.

  FIG. 5a, FIG. 6a, FIG. 7a, and FIG. 8a show a plug-in connector 1 that is a modification of the above embodiment, and FIG. 5b, FIG. 6b, FIG. 7b, and FIG. Shown is a mating plug-in connector 7 corresponding to them. These constitute a plug-in connector set in a group different from that described above.

  The three-pole plug-in connector 1 shown in FIG. 5a is the same as the three-pole plug-in connector 1 shown in FIG. 1a, which is a component of the first group of plug-in connector sets described above. The structure of the connecting portion that connects the holes 3 to each other is different, that is, in the plug-in connector 1 of FIG. 5A, the notch portion 6 that connects the box holes 3 to each other is formed at the lower position. Thereby, the mating plug-in connector 7 shown in FIG. 1b, which is a component of the first group of plug-in connector sets, and FIG. 5a, which is a component of the plug-in connector set of the second group, are shown. The plug-in connection with the plug-in connector 1 is made impossible. However, the insertion coupling between them is also prevented by the outer peripheral surface of the insulator housing 2 being formed in the required contour shape, and thus the box hole 3 being formed in the required contour shape.

  With respect to other points, the first group insertion type also applies to the coding protrusion 4 having the required contour shape provided in the internal space of the box hole 3 and the electrodes 5 and 10 provided therein. It is configured in the same way as the connector set.

  Similarly to the above, the 5-pole pluggable connector and the mating pluggable connector shown in FIGS. 6a, 6b, 7a, and 7b are also inserted into the first group shown in FIGS. 2a to 3b. The configuration is substantially the same as the type connector set, except that the formation position of the notch 6 formed in the partition wall between the box holes 3 adjacent to each other is opposite to the formation position in the insertion plug connector set of the first group It is the position of.

  In other respects, what has been described above for the first group of plug-in connector sets is directly relevant.

  The embodiment shown in FIGS. 5a to 8b constitutes a second group of pluggable connector sets.

  FIG. 9 a shows a three-pole plug-in connector 1 according to another embodiment. The plug-in connector 1 is provided on two partition walls between adjacent box holes 3. The notch portions 6 are formed at positions opposite to each other. 9b corresponding to the plug-in connector 1 shown in FIG. 9a is inserted into the plug-in connector set of the first group or the second group described above. It is assumed that the insertion connection with the type connector 1 is impossible.

  In order to prevent a state called “oblique insertion” or “one-pole insertion” (that is, a state where only one electrode member 5 and one electrode member 10 are in contact), the insertion shown in FIG. In the plug-in connector 1, the shapes of the plurality of coding protrusions 4 respectively provided in the plurality of box holes 3 are different from each other. This prevents the box hole 3 of the plug-in connector 1 shown in FIG. 9a from being fitted into the box hole 22 of the mating plug-in connector 7 shown in FIGS. 1b and 5b. . And these make it possible to perform complete coding.

  FIG. 10a, FIG. 10b, FIG. 11a, and FIG. 11b show a 5-pole plug-in connector and a mating plug-in connector according to a modification of the plug-in connector set described above. The plug-in connector set described in 1 is the shape of the coding protrusions 4 having the required contour shapes of the second function section 11b and the third function section 11c, and the coding protrusions 4 corresponding to the coding protrusions 4 are fitted. The shape of the coding hole 9 is different. That is, in these modified examples, the shapes of the coding protrusions 4 provided in each of the second function section to the third function section are both L-shaped or both inverted L like the plug-in connector set described above. Instead of a letter shape, one of the two coding protrusions 4 is L-shaped and the other is an inverted L-shape. By doing so, the plug-in connector and the mating plug-in connector of the plug-in connector set of the third group are not connected to the plugs of the plug-in connector set of the first group or the second group. It is possible. It is also possible to prevent improper insertion coupling between the functional sections 11a, 11b, and 11c due to the misalignment of the insertion position, and therefore, between the functional sections 11a and 11b and the functional section. 11b and 11c, the spacing or pitch between the coding protrusions 4 and the spacing or pitch between the coding holes 9 corresponding to the coding protrusions 4 are different as described above, and Furthermore, the formation positions of the notches 6 formed in the partition walls between the adjacent box holes 3 are also made different so that they can be reliably prevented.

  FIG. 12a shows a seven-pole plug-in connector 1 with three functional sections 11a, 11b, 11c according to another modification, the modification being used for supplying the power supply voltage. This is the formation position of the notch 6 connecting the box holes 3 adjacent to each other in the central functional section 11a, and the shape of the coding protrusion 4 having the required contour shape of the functional sections 11b and 11c on both outer sides. Because of these differences, the plug-in connector 1 cannot be connected to the mating plug-in connector 7 of the group described above.

  Shown in FIG. 1b is a 7-pole mating plug-in connector 7 corresponding to the plug-in connector 1 of FIG. 1a.

  The embodiment shown in FIGS. 9a to 12b constitutes a third group of pluggable connector sets.

  In the three groups of pluggable connector sets described above, only the function sections 11a, 11b, and 11c of the pluggable connector sets in the same group that correspond to each other can be plugged into each other. This is because such insertions are not risky. This is particularly noticeable in the third group of pluggable connector sets, where there is never an improper pluggable connection between the pluggable connector and the mating pluggable connector. This is because improper insertion coupling with risk is completely disabled by coding conditions.

  FIGS. 13a and 13b show specific examples in the case of using a combination of two plug-in connector sets. In this specific example, the pluggable connector 1 shown in FIG. 1a and the counterpart pluggable connector 7 shown in FIG. 1b are used to supply the main power supply voltage.

  In this specific example, the pluggable connector 1 shown in FIG. 2a having the second function section 11b and the counterpart pluggable connector 7 shown in FIG. In contrast, in the specific example described in connection with FIGS. 2a and 2b, the second functional section 11b of the pluggable connector 1 is used for data supply. In order to connect three-phase alternating current, the mating plug-in connector 7 is used as a wiring network connector, for example, and the two electrode members 10 in the functional section 11b on the left side of the mating plug-in connector 7 are further connected. It may be used to supply two phases, whereby three phases L1, L2, and L3 can be supplied.

  However, in the counterpart plug-in connector 7 (wiring network side connector) used in this way, the function section 11b on the left side is used for data supply as in the specific example described with reference to FIG. 2a. If a pluggable connector 1 is inserted and coupled, a system problem will occur. In order to prevent such a situation, the coding member 34 is attached to the coding hole 9. The coding protrusion protruding from the coding member 34 prevents the plug-in connector 1 shown in FIG. 13a from being inserted and coupled to the mating plug-in connector 7 having a different function assignment method. Thereby, when the contour shape of the functional section 11b of a certain plug-in connector 1 corresponds to the contour shape of the functional section 11b of the mating plug-in connector 7 in which the coding member 34 is mounted in the coding hole 9. As long as the plug-in connector 1 is accessible to the electrode member 10 of the mating plug-in connector 7. For the plug-in connector 1 that is not so, the connection location where the coding member 34 is mounted is a dummy connection location (connection) corresponding to the other two phases (L3 and L2, L3 and L1, or L1 and L2). Connection point that lost function).

  FIG. 14 a is a perspective view of the plug-in connector 1. In the plug-in connector 1, a plurality of box holes 3 each having a required contour shape are formed at plug-in locations on the outer wall portion of the insulator housing 2. Further, the illustrated five-pole plug-in connector 1 corresponds to the embodiment of FIG. 2a, and includes two functional sections 11a and 11b, of which the first functional section 11a is illustrated in FIG. 2a. The second function section 11b is used for connection of a data bus for supplying control data, as described with respect to the embodiment.

  A plurality of plate-like electrode members 5 are provided one by one in the plurality of box holes 3, and the electrode members 5 are partially in each of the plurality of coding protrusions 4 having a required contour shape. By being embedded, they are supported by the coding protrusions 4. These flat electrode members 5 are also called blade electrode members, and are provided with a preceding contact region 27 protruding upward in the illustrated example. In the insertion coupling, first, the preceding contact area 27 comes into contact with the preceding contact area 40 of the bifurcated electrode member of the mating insertion type connector 7. The preceding contact region 40 of the bifurcated electrode member is a region between a pair of tip portions and root portions of the bifurcated electrode member, and a contact projection group is provided on the pair of tip portions. According to this configuration, when a spark flies between the electrode members during insertion coupling, the spark flies between the portions of the preceding contact areas 27 and 40 of the electrode members. 28, 15 are not affected by sparks and are therefore protected from burning. As is apparent from the figure, a notch 60 is formed in each of the lateral outer wall of the first functional section 11a and the lateral outer wall of the second functional section 11b facing each other. Reference numeral 60 denotes a connection portion 12 that connects the first functional section 11a and the second functional section 11b of the mating plug-in connector 7, but the cutout portion 60 and the connection portion 12 are provided. Does not provide coding functionality.

  Further, as is apparent from the figure, the distance between the electrode members 5 adjacent to each other across the two functional sections 11a and 11b is such that the electrode members 5 adjacent to each other in the individual functional sections 11a and 11b. It is larger than the interval between them. That is, the pitch of the electrode members in the individual functional sections 11a and 11b is different from the pitch of the electrode members between the functional sections 11a and 11b.

  The blade-shaped electrode member 5 extends downward and extends into a wiring connection section 29 having a plurality of wiring lead-in openings 30, and one blade-shaped electrode member 5 is included in the wiring connection section. Are provided with a two-wire connecting portion capable of connecting two wires. Thereby, the intermediate connection of wiring (connection of the electrode member to the intermediate position of wiring) is attained.

  The illustrated plug-in connector 1 is particularly suitable for use as a device-side connector in electrical connection to an electrical device. The electrical connection to the electrical device is performed by inserting and coupling the wiring network side connector (mating side insertion type connector 7) to the device side connector (insertion type connector 1).

  The configuration of other parts including the contour shape of the box hole 3 and the coding protrusion 4 having the required contour shape is as described above in relation to FIGS. 2a and 2b.

  FIG. 14b shows a perspective view of a 5-pole mating plug-in connector 7 with two functional sections 11a, 11b according to another embodiment. The left functional section 11a includes two bifurcated electrode members 10 disposed in close proximity to each other, while the right functional section 11a includes three bifurcated shapes disposed in close proximity to each other. An electrode member 10 is provided.

  The bifurcated electrode member 10 has a known structure, and has a pair of sandwiching protrusions 14 facing each other. The sandwiching protrusions 14 have a single flat surface, and there is a gap between the sandwiching protrusions 14. Is formed so that a corresponding blade electrode member can be inserted between the sandwiching protrusions 14. The corresponding blade electrode member 5 is in contact with the contact projection group 15 provided on the sandwiching projection piece 14.

  The bifurcated electrode member 10 extends into the wiring connection section 16 and extends to the wiring connection fixing portion therein. In the illustrated example, the wiring connection fixing part is configured by a fixing tool that is fixed by the elastic force of a spring, and in particular, the fixing tool is capable of fixing a plurality of wirings. The electric wiring drawn in from two parallel wiring drawing openings 17 can be connected to the bifurcated electrode member 10.

  The operation of the fixing member fixed by the spring force of the spring provided in the insulator housing 18 of the wiring connection section 16 is performed by an operation lever 19 which is swingably attached to the insulator housing of the wiring connection section 16. Is done by.

  The mating-side plug-in connector 7 is configured to be used as a wiring network-side connector, and can be fixed to an electric device when it is inserted and coupled to the electric device. For the fixing, in the illustrated example, a fixing portion 20 configured as a flange portion having a hole is provided, and the mating plug-in connector 7 is used as a housing of an electric device by using the fixing portion 20. Can be screwed or tacked. In addition, the wiring network side connector (mating-side plug-in connector 7) can be fixed by engaging its engaging portion 50 (see FIG. 14b) with a metal fitting of the corresponding electrical device. The mating plug-in connector 7 is particularly suitable for use in connecting lighting fixtures. In such a case, the wiring network connector (the mating plug-in connector 7) is connected via a connection wiring. Connected to a power source and a data bus for lighting control.

  As is clear from the figure, the insertion coupling section 21 into which the insertion type connector is inserted and coupled in the entire insulator housing 2 is formed to have a required contour shape. Further, a plurality of box holes 22 are formed, and among them, the central box hole 22 of the first functional section 11 a has a larger vertical dimension than the other box holes 22. The bifurcated electrode member 10 provided in the central box hole 22 having a large vertical dimension is used as a PE electrode (protective ground electrode). The box holes 22 are connected to each other via a connecting portion 23, and a contour shape having a coding function is formed by the contour shape of the box hole 22 and the width dimension and forming position of the connecting portion 23. Only when the insertable connector 1 having a contour shape corresponding to the contour shape is inserted and coupled at a relative position corresponding to the contour shape, the insertion and coupling can be performed.

  Further, as is apparent from the drawing, the inner space of the box hole 22 defines a coding hole 24 having a required contour shape, and the coding hole 24 is connected to the mating plug-in connector 7. A coding protrusion having a required contour shape corresponding to the coding hole 24 of the corresponding plug-in connector 1 is fitted.

  Further, as is apparent from the drawing, a pair of protrusions 25 that face each other protrude in the internal space of the box hole 22. The pair of protrusions 25 support the bifurcated electrode member 10 on one side thereof, and provide a coding function by defining a partition wall that partitions the internal space of the coding hole 24. The pair of protrusions 25 further provide a function of guiding a coding member 34 formed as a separate member for fitting, which will be described in detail later.

  Shown in FIG. 15a is a top view of the plug-in connector 1 also shown in FIGS. 14a and 2a. As is clear from this top view, a coding protrusion 4 having a required contour shape protrudes in the internal space of the box hole 3 and a blade-like electrode member 5 is disposed. The coding protrusion 4 is formed integrally with the insulator housing 2 so as to be separated from the inner surface of the box hole 3, and the blade electrode member 5 is supported by a holding portion which is a bent portion fixed to the insulator housing 2. ing.

  Also, as is apparent from the figure, the cross-sectional shape of the coding protrusion having the required contour shape is the longitudinal extension portion 32 extending in the direction in which the plurality of blade-like electrode members 5 are arranged, and the direction thereof. On the other hand, it has a width direction extending portion 33 extending in the electrode plate extending direction of the bifurcated electrode member 10 of the counterpart pluggable connector 7 in the lateral direction. The length of the width direction extending portion 33 in the cross-sectional shape of the central box hole of the first function section 11a is set to be longer than the length of the width direction extending portion 33 in the cross-sectional shape of the other box holes. This is particularly useful in the illustrated embodiment to prevent misconnections to the PE poles installed in this central box hole.

  By varying the position of the widthwise extension with respect to the longitudinal extension, the cross-sectional shape of the coding protrusion 4 can be, for example, L-shaped, T-shaped, or inverted L-shaped. Coding is possible.

  FIG. 15b shows a top view of the mating plug-in connector 7 shown in FIGS. 14b and 2b. As is clear from this top view, when the blade-like electrode member 5 of the plug-in connector 1 is inserted into the bifurcated electrode member 10, a pair of clamping protrusions 14 of the bifurcated electrode member 10 are stretched. It is inserted from the direction orthogonal to the plane. Since the leading contact region 27 of the blade-like electrode member 5 of the plug-in connector 1 protrudes, the protruding contact region 27 is first inserted into the two of the mating plug-in connector 7 at the time of insertion coupling. The fork-shaped electrode member 10 contacts the preceding contact projection group 40 provided opposite to each other, and the preceding contact projection group 40 is a common root (not shown) of the main contact projection group 15 and the pair of sandwiching projection pieces 14. Between. The main contact state when the pluggable connector shown in FIGS. 14 a and 15 a is completely inserted and coupled to the mating pluggable connector 7 shown in FIGS. 14 b and 15 b is the main contact protrusion group 15. The main contact projection group 15 is provided along the tip of the sandwiching projection piece 14. This prevents the main contact area from burning out.

  Further, as is apparent from the drawing, the main contact projection group 15 has a smaller gap between the opposed projections than the preceding contact projection group 40. That is, the gap between the opposing protrusions of the preceding contact protrusion group 40 is larger than the interval between the opposing protrusions of the main contact protrusion group 15. Thus, after the main contact state connected through the main contact projection group 15 is reached, the blade electrode member 15 is electrically connected only through the main contact projection group 15, and the preceding contact projection group 40 is used. Parallel connection paths are eliminated.

  FIG. 16 a is a perspective view of the coding member 34 that is formed as a separate member and is used by being attached to the mating plug-in connector 7. The coding member 34 has a substantially rectangular parallelepiped body portion 35. A coding projection 36 projects from the body portion 35. In the illustrated example, a pair of coding projections 36 that are adjacent to each other and extend in parallel with each other project. A guide groove portion 37 is formed on the side edge of the main body portion 35, and is formed in the box hole 22 when the coding member 34 is correctly inserted into the corresponding box hole 22 of the mating plug-in connector 7. The protrusion 25 is fitted in the guide groove portion 37 of the main body portion 35, so that the coding member 34 attached to the box hole 22 is positioned in the correct position in the correct posture.

  In this way, the coding member 34 can be mounted in the correct position and in the correct posture. By mounting in this way, the coding protrusion 36 is positioned in the coding position, and the coding protrusion 36 is inserted. The coding hole 9 is partially closed by fitting into the coding hole 9 of the mating plug-in connector 7 corresponding to the coding protrusion 4 of the plug-in connector 1.

  In order to allow the attached coding member 34 to be removed, an operation slit 38 into which an operation tool such as a screwdriver can be inserted is formed at the edge of the main body 35. The coding member 35 can be pulled out above the insulator housing 2 of the mating plug-in connector 7 by hooking the tip of the screwdriver or the like to the operation slit portion 38.

  FIG. 17 is a perspective view of the coding member 34 shown in FIG. 16 and shows a state in which the coding member 34 is about to be inserted into the coding hole 9 of the mating plug-in connector 7. As can be seen from the drawing, the main body 35 can be mounted on the upper portion of the coding hole 9 by inserting the tip end portion of the coding protrusion 36 into the internal space of the coding hole 9.

  FIG. 18 is a partial cutaway view of the mating plug-in connector 7 shown in FIG. 17 and shows a state in which the coding member 34 has been inserted. A coding protrusion 36 is inserted into a part of the coding hole 9 of the mating plug-in connector 7 so that the coding hole 9 is partially blocked. Further, the bifurcated electrode member 10 located below the coding member 34 is covered with the coding member 34 located above the bifurcated electrode member 10, whereby a plug-in connector is provided. One blade-shaped electrode member 5 cannot be brought into contact with the bifurcated electrode member 10.

  The coding member 34 of the illustrated embodiment loses the connection function of the connection section fitted with this coding 34, thereby protecting the connection section from improper insertion coupling.

  As is apparent from the drawing, the coding member 34 has a pair of protrusions 25 fitted in the pair of grooves 37. Further, the function of the operation slit 38 is a slit that can be accessed from above, so that it can be easily understood, so that the screw can be screwed into this slit over the upper edge of the insulator housing 2 of the mating plug-in connector 7. The coding member 34 can be removed by hooking the tip of the wire.

Claims (13)

A plug-in connector set comprising a plug-in connector (1) and a mating plug-in connector (7), each of the plug-in connector (1) and the mating plug-in connector (7) Has an insulator housing (2, 8) and a plurality of electrode members (5, 10) arranged in the insulator housing (2, 8), and the plug-in connector (1 ) And the mating plug-in connector (7) when the plug-in connector (1) and the mating plug-in connector (7) are inserted and coupled to each other. And the electrode members (5, 10) disposed on the mating plug-in connector (7) are electrically connected to each other, and are configured as corresponding connectors, and the insulator housings (2, 8) The plug-in connector (1) and the mating plug-in connector Coding that allows insertion coupling of the plug-in connector (1) and the mating plug-in connector (7) only when the relative position with respect to (7) is the only relative position that can be inserted. In an insertable connector set having a contour shape,
The pluggable connector (1) and / or the mating pluggable connector (7) has at least two functional sections (11a, 11b, 11c), each of the at least two functional sections being It has at least two electrode members (5, 10) arranged adjacent to each other in one insulator housing part and is adjacent to each other of two adjacent functional sections (11a, 11b, 11c). The spacing between the matching electrode members (5, 10) is different from the spacing between adjacent electrode members (5, 10) in each of the functional sections.
Plug-in connector set characterized by that.   The insulator housing (2) of the plug-in connector (1) includes a plurality of box holes (3) formed by an outer wall portion having a required contour shape of the insulator housing (2), and the box holes ( A plurality of coding protrusions (4) provided in the internal space of 3) and projecting in the insertion direction and having a required contour shape, and the insulator housing ( 8) is provided with a plurality of coding holes (9) in which the corresponding coding projections of the plurality of coding projections (4) having the required contour shapes are fitted at the only insertion-possible positions. The plug-in connector set according to claim 1.   The plug-in connector set according to claim 2, wherein the plurality of electrode members (5) are partially received by the plurality of coding protrusions (4).   The plurality of coding protrusions (4) include a longitudinally extending portion (32) extending in a direction in which the plurality of electrode members (5) are arranged, and a width direction extending in a direction orthogonal to the direction. And the laterally extending portion (33) is provided on the left side, the center, or the right side of the longitudinally extending portion (32) so that the coding is performed. The plug-in type connector set according to claim 2 or 3, characterized in that.   The insulator housing portions of the functional sections (11a, 11b, 11c) of the mating plug-in connector (7) are connected to each other via a connecting portion (12), and the plug-in connector (1 ) Of the functional section (11a, 11b, 11c) is formed with a notch (6) corresponding to the connecting portion (12) on the outer wall portion of the insulator housing portion, and the notch (6) When the pluggable connector (1) and the mating pluggable connector (7) are inserted and coupled at a single pluggable position, the connecting portion corresponding to the notch (6) The plug-in connector set according to any one of claims 1 to 4, wherein (12) can be accommodated.   The plurality of electrode members (5, 10) include a bifurcated electrode member (10) having a pair of sandwiching protrusions (14) opposed to each other, and a flat blade electrode corresponding to the bifurcated electrode member The plug-in type connector set according to any one of claims 1 to 5, wherein the member (5) is configured to form a pair.   The bifurcated electrode member (10) is arranged in a direction perpendicular to the insertion direction in the insulator housing (8) including the bifurcated electrode member (10), and the blade When the electrode member (5) is inserted and coupled, a direction perpendicular to a plane defined by the pair of sandwiching protrusions is formed in a gap defined between the pair of sandwiching protrusions of the bifurcated electrode member. The insertable connector set according to claim 6, wherein the insertable connector set is inserted from   The said insulator housing (2, 8) has a dimension long compared with another area | region in the vicinity area | region of a protective earth electrode (PE pole), The one of Claim 1 thru | or 7 characterized by the above-mentioned. Plug-in connector set. A plug-in connector set comprising a plug-in connector (1) and a mating plug-in connector (7), each of the plug-in connector (1) and the mating plug-in connector (7) Has an insulator housing (2, 8), and a plurality of box holes (3, 22) are formed by an outer wall portion having a required contour shape of the insulator housing (2, 8). A plurality of electrode members (5, 10) are disposed in the body housing (2, 8), and the plug-in connector (1) and the mating plug-in connector (7) The electrode member disposed on the plug-in connector (1) and the mating plug-in connector (7) when the connector (1) and the plug-in plug-in connector (7) are plugged into each other. (5, 10) electrically connected to each other The insulator housing (2, 8) is configured as a connector, and the plug-in connector (1) and the mating plug-in connector (7) are connected to each other only when the insulator housing (2, 8) is in the only insertable position. In a pluggable connector set having a coding shape that allows it to be plugged in,
The insulator housing (2) of the plug-in connector (1) is provided in an internal space of the plurality of box holes (3), protrudes in the insertion direction, and has a plurality of coding protrusions having a required contour shape ( 4), and the insulator housing (8) of the mating plug-in connector (7) has the plurality of required contour shapes in the inner space of the plurality of box holes (22). A plurality of coding holes (9) in which the corresponding coding protrusions of (4) are fitted in a single insertable position;
Plug-in connector set characterized by that.   The insertion type according to any one of claims 1 to 9, wherein an insertable coding member (34) formed as a separate member is attached to the box hole (3, 22). Connector set. In a pluggable connector (1) for a pluggable connector set according to any one of claims 1 to 10,
The pluggable connector (1) has at least two functional sections (11a, 11b, 11c), each of the at least two functional sections being adjacent to one another in one insulator housing part. It has at least two electrode members (5) arranged, and the distance between the adjacent electrode members of the two adjacent functional sections (11a, 11b, 11c) is the functional section (11a). , 11b, 11c), the distance between the electrode members (5) adjacent to each other is different.
A plug-in connector (1) characterized by that. In the mating plug-in connector (7) for the plug-in connector set according to any one of claims 1 to 9,
The mating plug-in connector (7) has at least two functional sections (11a, 11b, 11c), each of the at least two functional sections being adjacent to one another in one insulator housing part. The distance between the adjacent electrode members (10) in the two adjacent functional sections (11a, 11b, 11c) is at least two electrode members (10) arranged in the following manner: In each of the functional sections (11a, 11b, 11c), the distance between the electrode members (10) adjacent to each other is different.
A mating plug-in connector (7) characterized in that. An insulator housing (2) having an outer peripheral portion having a required contour shape, and a plurality of electrode members (5) arranged in the insulator housing (2), the outer wall portion of the insulator housing (2) being provided In the plug-in connector (1) in which a plurality of box holes (3) having a required contour shape are formed,
A coding member (34) insertable into the box hole (3, 22), the coding member (34) having at least one protruding coding protrusion (36);
A plug-in connector (1) characterized by that.

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