connector

Abstract

To easily identify the presence or absence of a ferrite core.SOLUTION: A connector includes: a terminal fitting 10; a first housing 20 provided with a holder 21 for holding the terminal fitting; and a second housing 30 for accommodating the holder at an assembly completion position where it has been assembled with the first housing. The holder has: a core accommodation chamber 23 for each ferrite core 40; and a communication hole 27 for causing the core accommodation chamber to communicate with the outside of the chamber. The second housing has: a housing accommodating chamber 32 for accommodating the holder at the assembly completion position; a core detection body 36 for detecting whether the ferrite core is accommodated in the core accommodation chamber at the assembly completion position, by its own shape change; and a detection window 37 for allowing the shape change to be recognized from the outside. The core detection body has: a pushed portion 36a entering the core accommodation chamber side from the communication hole in conjunction with the accommodation operation of the holder, and pushed back by the ferrite core if the ferrite core is accommodated; and a deformation portion 36b for allowing the shape change caused by the movement of the pushed portion to be recognized from the detection window.SELECTED DRAWING: Figure 4

Description

[Technical field]

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

[0002] Conventionally, in a connector, a technique is known in which a terminal in a housing is inserted into a ferrite core in order to attenuate noise currents. This connector is disclosed, for example, in Patent Document 1 listed below. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-025914 A Summary of the Invention [Problem to be solved by the invention]

[0004] In this type of connector, a ferrite core is accommodated within the housing, but it is difficult to determine from the outside of the housing whether the ferrite core is properly accommodated or not.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a connector that allows easy identification of the presence or absence of a ferrite core. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention provides a terminal fitting having a base and a plurality of cantilevered terminal portions protruding from the base, a first housing provided with a holder for holding the terminal fitting, and a second housing to which the first housing is assembled and which accommodates the holder together with the terminal fitting at a position where assembly is complete, the holder having core accommodating chambers for each ferrite core capable of accommodating a ferrite core with the terminal portions inserted into through holes in the protruding direction, and a communication hole connecting the core accommodating chambers to the outside, and the second housing accommodates the holder at a position where assembly is complete with the first housing. the core accommodating chamber includes a housing accommodating chamber for accommodating the ferrite core; a core detector that detects by a change in its own shape whether the ferrite core is accommodated in the core accommodating chamber at the completed assembly position; and a detection window that allows the change in shape of the core detector to be recognized from the outside. The core detector has a pushed portion that enters the core accommodating chamber from the communicating hole in conjunction with the accommodating operation of the holder into the housing accommodating chamber, and is pushed back by the ferrite core if the ferrite core is accommodated in the core accommodating chamber, and a deforming portion that allows the change in shape associated with the movement of the pushed portion to be recognized from the detection window.

[0007] In addition, in order to achieve the above-mentioned object, the present invention comprises a terminal fitting having a base and a plurality of cantilevered terminal portions protruding from the base, and a housing that accommodates and holds the terminal fitting, wherein the housing has a core accommodating chamber for each ferrite core that can accommodate a ferrite core with the terminal portion inserted into a through hole in the protruding direction, a core detector that detects whether the ferrite core is accommodated in the core accommodating chamber by a change in its own shape, and a detection window that allows the change in shape of the core detector to be recognized from the outside, and the core detector has a pushed portion that is pushed by the ferrite core in conjunction with the accommodating action of the ferrite core into the core accommodating chamber, and a deforming portion that allows the change in shape associated with the movement of the pushed portion to be recognized from the detection window. Effect of the Invention

[0008] In the connector according to the present invention, if ferrite cores are accommodated in all the core accommodating chambers of the holder, the pushed parts a of all the core detectors will enter the respective core accommodating chambers through the communication holes by inserting the holder into the housing accommodating chamber, and all the pushed parts in each core accommodating chamber will be pushed back by the ferrite core. As a result, in this connector, a shape change occurs in all the core detectors, and the respective shape changes can be recognized from all the detection windows. Also, in the connector according to the present invention, if ferrite cores are accommodated in only some of the core accommodating chambers of the holder, the pushed parts of all the core detectors will enter the respective core accommodating chambers through the communication holes by inserting the holder into the housing accommodating chamber, and the pushed parts will be pushed back by the ferrite core only in the core accommodating chamber in which the ferrite core is accommodated. As a result, in this connector, a shape change occurs in the core detector corresponding to the core accommodating chamber in which the ferrite core is accommodated, and the shape change can be recognized from the detection window, while no shape change occurs in the core detector corresponding to the core accommodating chamber in which the ferrite core is not accommodated, and it can be recognized from the detection window that no shape change has occurred in the core detector. In the connector according to the present invention, if the ferrite core is not accommodated in any of the core accommodating chambers of the retainer, the pushed parts of all the core detectors will enter into the respective core accommodating chambers through the communication holes by inserting the retainer into the housing accommodating chamber, but no change in shape will occur in any of the core detectors. As a result, in this connector, it can be recognized from the detection window that no change in shape has occurred in any of the core detectors.

[0009] Furthermore, in another connector according to the present invention, if a ferrite core is accommodated in all the core accommodating chambers, the pushed parts of all the core detectors are pushed by the ferrite cores by inserting the ferrite cores into the core accommodating chambers. As a result, in this connector, a shape change occurs in all the core detectors, and the respective shape changes can be recognized from all the detection windows. Also, in this connector, if a ferrite core is accommodated only in some of the core accommodating chambers, the pushed parts of the core detectors are pushed by the ferrite cores only in the core accommodating chambers into which the ferrite cores are inserted. As a result, in this connector, a shape change occurs in the core detectors corresponding to the core accommodating chambers in which the ferrite cores are accommodated, and the shape change can be recognized from the detection window, while no shape change occurs in the core detectors corresponding to the core accommodating chambers in which the ferrite cores are not accommodated, and it can be recognized from the detection window that no shape change has occurred in the core detectors. Also, in this connector, if a ferrite core is not accommodated in all the core accommodating chambers, no shape change occurs in all the core detectors. As a result, in this connector, it can be confirmed through the detection window that no change in shape has occurred in any of the core detection bodies.

[0010] As described above, in the connector according to the present invention, if a ferrite core is needed, it is possible to externally check whether the ferrite core is housed in the appropriate core housing. Also, in this connector, if a ferrite core is not needed, it is possible to externally check whether a ferrite core has been mistakenly housed in the core housing. In this way, the connector according to the present invention can easily identify whether a ferrite core is present or not. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a plan view of a connector according to an embodiment in which all ferrite cores are housed, as viewed from the terminal insertion opening side. [Diagram 2]FIG. 2 is a perspective view showing an embodiment of a connector in which all ferrite cores are housed. [Diagram 3] FIG. 3 is a perspective view of the connector according to the embodiment in which all the ferrite cores are housed, as viewed from a different angle. [Figure 4] FIG. 4 is a cross-sectional view taken along line XX in FIG. [Diagram 5] FIG. 5 is a cross-sectional view taken along line YY in FIG. 1 rotated by 90 degrees. [Figure 6] FIG. 6 is an exploded perspective view of a connector according to an embodiment in which all of the ferrite cores are housed. [Figure 7] FIG. 7 is a cross-sectional view taken along line XX in FIG. [Figure 8] FIG. 8 is an exploded perspective view showing the connector before assembly between the housings in which all the ferrite cores are housed. [Figure 9] FIG. 9 is an exploded perspective view of the connector, in which all the ferrite cores are housed, viewed from a different angle before being assembled between the housings. [Figure 10] FIG. 10 is a cross-sectional view taken along line XX in FIG. [Figure 11] FIG. 11 is a plan view of the connector according to the embodiment in which some of the ferrite cores are housed, as viewed from the terminal insertion opening side. [Figure 12] FIG. 12 is a cross-sectional view taken along line XX in FIG. [Figure 13] FIG. 13 is a cross-sectional view taken along line YY in FIG. 11 rotated 90 degrees. [Figure 14] FIG. 14 is an exploded perspective view showing the connector before assembly between the housings in which some of the ferrite cores are housed. [Figure 15] FIG. 15 is a plan view of a connector according to a ferrite coreless embodiment, as viewed from the terminal insertion port side. [Figure 16] FIG. 16 is a cross-sectional view taken along line YY in FIG. 15 rotated 90 degrees. [Figure 17] FIG. 17 is an exploded perspective view showing a connector before assembly between ferrite coreless housings. [Figure 18]FIG. 18 is an explanatory diagram illustrating an application example of the connector according to the embodiment. [Figure 19] FIG. 19 is a plan view of a modified connector in which all ferrite cores are housed, as viewed from the core insertion opening side. [Figure 20] FIG. 20 is a perspective view showing a modified connector in which all the ferrite cores are housed. [Figure 21] FIG. 21 is a perspective view of a modified connector in which all ferrite cores are housed, as viewed from a different angle. [Figure 22] FIG. 22 is a cross-sectional view taken along line XX in FIG. [Diagram 23] FIG. 23 is a cross-sectional view taken along line YY in FIG. 19 rotated 90 degrees. [Figure 24] FIG. 24 is an exploded perspective view of a modified connector in which all the ferrite cores are housed. [Diagram 25] FIG. 25 is a cross-sectional view taken along line XX in FIG. [Figure 26] FIG. 26 is a plan view of a modified connector in which some ferrite cores are housed, as viewed from the core insertion opening side. [Figure 27] FIG. 27 is a cross-sectional view taken along line XX in FIG. [Figure 28] FIG. 28 is a cross-sectional view taken along line YY in FIG. 26 rotated 90 degrees. [Figure 29] FIG. 29 is a plan view of a modified ferrite coreless connector as viewed from the core insertion port side. [Diagram 30] FIG. 30 is a cross-sectional view taken along line YY in FIG. 29 rotated 90 degrees. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a connector according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to this embodiment.

[0013] [Embodiment] One embodiment of a connector according to the present invention will be described with reference to FIGS.

[0014] Reference numeral 1 in FIGS. 1 to 17 denotes a connector of this embodiment.

[0015] This connector 1 comprises at least a terminal fitting 10, a first housing 20 and a second housing 30, and also comprises a ferrite core 40 depending on whether noise removal on the circuit is required (FIGS. 1 and 4 to 17).

[0016] The connector 1 shown here is exemplified as a joint connector that electrically connects between a first device (not shown) and a second device (not shown). For example, this connector 1 is interposed between an electric wire We1 electrically connected to a first device in an engine compartment of a vehicle and an electric wire We2 electrically connected to a second device on an instrument panel of the vehicle, and the electric wires We1 and We2 are electrically connected to each other, thereby electrically connecting the first device side and the second device side (FIG. 18). Also, for example, this connector 1 is interposed between an electric wire We1 electrically connected to a first device on or under the floor of a vehicle and an electric wire We2 electrically connected to a second device on an instrument panel of the vehicle, and the electric wires We1 and We2 are electrically connected to each other, thereby electrically connecting the first device side and the second device side (FIG. 18).

[0017] The terminal fitting 10 is made of a conductive material such as metal. The terminal fitting 10 has a base 11 and a plurality of cantilevered terminal portions 12 protruding from the base 11 (FIGS. 4 to 7, 10, 12, 13, and 16). The terminal fitting 10 of this embodiment has a plurality of terminal portions 12 protruding from the base 11 in a first direction and arranged at intervals in a terminal arrangement direction perpendicular to the first direction. For example, in the terminal fitting 10, at least one of the plurality of terminal portions 12 is electrically connected to a first device side, and the remaining terminal portions 12 are electrically connected to a second device side.

[0018] The base 11 is a connecting portion that connects all the terminal portions 12 of the terminal fitting 10. The base 11 shown here is formed in a rectangular flat plate shape.

[0019] The terminal portion 12 is physically and electrically connected to a mating terminal fitting (not shown) attached to an end of the electric wire We1 on the first device side by fitting and connecting it, and is electrically connected to the first device side through the mating terminal fitting and the electric wire We1. The terminal portion 12 is physically and electrically connected to a mating terminal fitting (not shown) attached to an end of the electric wire We2 on the second device side by fitting and connecting it, and is electrically connected to the second device side through the mating terminal fitting and the electric wire We2. The terminal portion 12 shown here is an axial male terminal portion whose axial direction is the protruding direction (first direction) from the base portion 11 (FIGS. 6, 8, 9, 14, and 17). The protruding direction of the terminal portion 12 is the insertion direction into the mating terminal fitting, and the terminal portion 12 is fitted and connected to the mating terminal fitting having a female terminal shape. The terminal portion 12 shown here is protruding in the first direction from one side of the base portion 11 on the same plane as the base portion 11 on the first direction side.

[0020] In the terminal fitting 10 shown here, four terminal portions 12 are arranged at intervals in the terminal arrangement direction (FIGS. 1, 5, 6, 8, 9, 11, 13, 14, and 15 to 17). The terminal portions 12 are arranged at equal intervals (equal pitch) between adjacent terminal portions 12.

[0021] In the connector 1 of this embodiment, the terminal fittings 10 are arranged at intervals (FIGS. 1, 4, 6 to 12, 14, 15, and 17). That is, the connector 1 includes a plurality of terminal fittings 10 arranged at intervals. Here, the terminal fittings 10 are arranged at intervals in an arrangement direction (hereinafter referred to as the "fitting arrangement direction") perpendicular to the first direction and the terminal arrangement direction. In the plurality of terminal fittings 10, the respective terminal portions 12 arranged at the same position on the respective base portions 11 are arranged in the fitting arrangement direction. Thus, in the plurality of terminal fittings 10, four combinations of the plurality of terminal portions 12 arranged in the fitting arrangement direction are provided. Here, the fitting arrangement direction corresponds to the insertion direction of a holding body 21 of the first housing 20, which will be described later, into a housing accommodating chamber 32 of the second housing 30, which will be described later.

[0022] As described above, the mating terminal fitting attached to the end of the electric wire We1 or the mating terminal fitting attached to the end of the electric wire We2 is physically and electrically connected to this terminal portion 12. In the connector 1 of this embodiment, the pair of electric wires We1 (electric wires We2) and the mating terminal fittings may be connected to the terminal portion 12 one by one, or a mating connector in which the combination of the pair of electric wires We1 and the mating terminal fittings and the combination of the pair of electric wires We2 and the mating terminal fittings are provided for each of the multiple terminal portions 12 may be fitted and connected. Here, the respective mating terminal fittings are fitted and connected to the terminal portions 12 using the mating connector.

[0023] For example, to enhance the noise reduction effect, the connector 1 of this embodiment is electrically connected to a twisted pair electric wire (not shown) in which two electric wires are twisted together. One of the two terminals 12 on the first device side adjacent to each other in the metal fitting arrangement direction is electrically connected to one of the two terminals 12, and the other of the two terminals is electrically connected to the other of the two terminals. In addition, one of the two terminals 12 on the second device side adjacent to each other in the metal fitting arrangement direction is electrically connected to one of the two terminals 12, and the other of the two terminals is electrically connected to the other of the two terminals.

[0024] The connector 1 shown here includes two terminal fittings 10. In the connector 1 shown here, for each combination of two terminal parts 12 arranged in the fitting arrangement direction, a twisted pair electric wire on the first device side or a twisted pair electric wire on the second device side is electrically connected via a mating terminal fitting.

[0025] In this connector 1, if it is necessary to remove noise flowing through the terminal portion 12 of the terminal fitting 10, a ferrite core 40 is attached to the terminal portion 12 from which the noise is to be removed.

[0026] The ferrite core 40 is a member formed from a magnetic body (ferrite) and is provided as a noise filter member for reducing noise. In the ferrite core 40, a through hole 41 is formed through which the terminal portion 12 can be inserted in the protruding direction in order to attenuate the noise current flowing through the terminal portion 12 (FIGS. 4 to 7 and 13). The ferrite core 40 is provided for a circuit (terminal portion 12) that requires noise elimination. In addition, when there are multiple circuits (terminal portions 12) that require noise elimination, the ferrite core 40 is provided for each of the circuits (terminal portions 12).

[0027] In this connector 1, the necessity of noise elimination is determined for each combination of the terminal parts 12 of the terminal fittings 10 arranged in the fitting arrangement direction. For this reason, the ferrite core 40 of this embodiment is provided for the combination of the terminal parts 12 that requires noise elimination (FIGS. 1, 4, 6, 7, 9 to 11, and 14). When there are multiple combinations of the terminal parts 12 that require noise elimination, the ferrite core 40 is provided for each combination (FIGS. 1, 6, 7, 9 to 11, and 14). In this ferrite core 40, through holes 41 are formed in the fitting arrangement direction for each of the terminal fittings 10 (FIGS. 4, 6, and 7). In this connector 1, one ferrite core 40 can be provided for each combination of two terminal parts 12 arranged in the fitting arrangement direction. The connector 1 shown here can have a maximum of four ferrite cores 40.

[0028] For example, the ferrite core 40 shown here is a square-shaped molded body with a rectangular cross section perpendicular to the axial direction (first direction, second direction) of the through hole 41, and is arranged with the longitudinal direction of the rectangle aligned with the metal fitting arrangement direction. The ferrite core 40 shown here has two through holes 41 arranged with a gap between them in the metal fitting arrangement direction.

[0029] The first housing 20 and the second housing 30 are each molded from an insulating material such as synthetic resin. In this connector 1, the terminal fittings 10 are assembled and held in the first housing 20. In addition, in this connector 1, when a ferrite core 40 is provided, the ferrite core 40 is assembled and held in the first housing 20.

[0030] In this connector 1, an assembly consisting of a first housing 20, a terminal fitting 10, and a ferrite core 40 is inserted into a second housing 30 through a housing insertion opening 30a and assembled, whereby the terminal fitting 10 and the ferrite core 40 are accommodated inside the assembled first housing 20 and second housing 30 (FIGS. 1 to 14). Also, in this connector 1, an assembly consisting of a first housing 20 and a terminal fitting 10 is inserted into a second housing 30 through a housing insertion opening 30a and assembled, whereby the terminal fitting 10 is accommodated inside the assembled first housing 20 and second housing 30 (FIGS. 15 to 17). A locking mechanism (not shown) is provided between the first housing 20 and the second housing 30, using a claw or the like to hold them in the assembled position.

[0031] The first housing 20 is provided with a holder 21 that holds the terminal fittings 10 (FIGS. 1 and 4 to 17). The holder 21 can also hold the ferrite core 40 (FIGS. 1 and 4 to 14). Furthermore, the first housing 20 is provided with a cover 22 that closes the housing insertion opening 30a of the second housing 30 (FIGS. 2 to 4, 6 to 10, 12, 14, and 17).

[0032] In the holder 21, the terminal fitting 10 is inserted from the free end side of the terminal portion 12 in a first direction (FIGS. 6 to 14). The holder 21 has an accommodation chamber (hereinafter referred to as a "core accommodation chamber") 23 for each ferrite core 40 capable of accommodating the ferrite core 40 with the terminal portion 12 inserted therethrough (FIGS. 4 to 8, 10 and 13). The ferrite core 40 is accommodated in the core accommodation chamber 23 with the terminal portion 12 inserted through the through hole 41. Therefore, the portion of the terminal portion 12 that is inserted into the through hole 41 of the ferrite core 40 is also accommodated in the core accommodation chamber 23. The accommodated ferrite core 40 is held in the core accommodation chamber 23.

[0033] The core accommodating chamber 23 is provided with a core insertion opening 23a through which the ferrite core 40 is inserted along the axial direction of the through hole 41, and a first core locking portion 23b that locks the end of the ferrite core 40 accommodated in the chamber opposite to the core insertion opening 23a (FIGS. 4, 5, 7, 12, 13, and 16). In the core accommodating chamber 23 shown here, the ferrite core 40 is inserted in the second direction from the core insertion opening 23a, and is locked by the wall surface (first core locking portion 23b) on the second direction side in the chamber. In the holder 21 shown here, the core accommodating chambers 23 are arranged along the terminal arrangement direction of the terminal portions 12 of the terminal fittings 10.

[0034] In this connector 1, all the terminal parts 12 of the terminal fittings 10 are protruded in a first direction from the holder 21, and the protruding parts of the terminal parts 12 become terminal connection parts that are fitted and connected to the mating terminal fittings. The holder 21 shown here has fitting grooves 24a into which the terminal fittings 10 are inserted in the first direction from the terminal part 12 side and into which the base parts 11 of the terminal fittings 10 are fitted, and through holes (hereinafter referred to as "terminal insertion holes") 24b through which the terminal parts 12 inserted into the fitting grooves 24a are inserted in the first direction and protrude (FIGS. 4, 5, 7, 12, 13, and 16). The fitting grooves 24a are grooves that extend in the terminal arrangement direction and are formed with a groove width that allows the base parts 11 to be sandwiched from each plane. The terminal insertion holes 24b are formed for each terminal part 12.

[0035] The core accommodating chamber 23 is provided with a holding portion 25 for holding the ferrite core 40 (FIGS. 1, 11, and 15). The holding portion 25 is a protrusion that holds the peripheral wall of the ferrite core 40 from all sides, and is provided for each core accommodating chamber 23. The holding portion 25 shown here is roughly divided into a pair of first holding portions 25A that hold both flat sides extending in the longitudinal direction (metal fitting arrangement direction) of the ferrite core 40, and a pair of second holding portions 25B that hold both flat sides extending in the lateral direction (terminal arrangement direction) of the ferrite core 40. Here, two pairs of the first holding portions 25A and two pairs of the second holding portions 25B are provided. The first holding portions 25A and the second holding portions 25B are formed in a rib shape extending in the insertion direction of the ferrite core 40.

[0036] The pair of first retaining portions 25A protrude from a wall (hereinafter referred to as a "first wall") 26A in the terminal arrangement direction that forms the core accommodating chamber 23 toward the room side so as to face each other in the terminal arrangement direction (FIGS. 1, 11, and 15). The pair of second retaining portions 25B protrude from a wall (hereinafter referred to as a "second wall") 26B in the metal fitting arrangement direction that forms the core accommodating chamber 23 toward the room side so as to face each other in the metal fitting arrangement direction (FIG. 1).

[0037] The retaining body 21 shown here is formed in a rectangular shape. In this retaining body 21, a core insertion opening 23a is formed in one of six wall surfaces, and an insertion groove 24a is formed in the wall surface on the opposite side in the second direction from this wall surface.

[0038] If the ferrite core 40 is not required, the retainer 21 is inserted into the second housing 30 together with the assembled terminal fittings 10 without assembling the ferrite core 40. If the ferrite core 40 is required, the retainer 21 is inserted into the second housing 30 together with the assembled terminal fittings 10 and the ferrite core 40. For example, the retainer 21 may be inserted into the second housing 30 along the protruding direction of the terminal parts 12 of the terminal fittings 10, or may be inserted into the second housing 30 along a direction perpendicular to the protruding direction. Here, an assembly consisting of the retainer 21 and the like is inserted in a direction perpendicular to the first direction and the terminal arrangement direction (the fitting arrangement direction). Therefore, in the first housing 20, the lid 22 is provided on the wall surface of the retainer 21 on the opposite side to the insertion direction into the second housing 30. The lid 22 shown here is formed in a rectangular flat plate shape that matches the shape of the rectangular housing insertion opening 30a of the second housing 30.

[0039] The second housing 30 accommodates the retainer 21 together with the terminal fittings 10 or together with the terminal fittings 10 and the ferrite core 40 when the second housing 30 is in the assembled position with the first housing 20. The second housing 30 has a cylindrical main body 31 whose cylindrical axis direction is aligned with the axial direction (first direction) of the terminal portions 12 and the hole axis direction of the through holes 41 of the ferrite core 40, and accommodates the retainer 21 together with the terminal fittings 10 or together with the terminal fittings 10 and the ferrite core 40 inside the main body 31 (FIGS. 1 to 17).

[0040] The second housing 30 has an accommodation chamber (hereinafter referred to as the "housing accommodation chamber") 32 that accommodates the retainer 21 when the second housing 30 is in the assembled position with the first housing 20 (Figs. 4 to 8, 10, 12, 13, 15 and 16). Furthermore, the second housing 30 has an accommodation chamber (hereinafter referred to as the "terminal accommodation chamber") 33 that accommodates the free end side of the terminal portion 12 protruding from the retainer 21 when the second housing 30 is in the assembled position with the first housing 20 (Figs. 1 to 17). The second housing 30 has a partition wall 34 that separates the housing accommodation chamber 32 from the terminal accommodation chamber 33 (Figs. 1, 4 to 8, 10 to 13, 15 and 16).

[0041] The main body 31 shown here is formed in a rectangular tube shape, with one end in the axial direction of the tube open and the other end in the axial direction closed. In the second housing 30, a rectangular housing insertion opening 30a is formed in one of the rectangular outer walls (hereinafter referred to as the "first outer wall") 31a constituting the main body 31 (FIGS. 4, 6 to 10, 12, 14, and 17). The housing insertion opening 30a is an opening through which the holder 21 is inserted together with the terminal fitting 10 or together with the terminal fitting 10 and the ferrite core 40 into the housing accommodating chamber 32 along the previous insertion direction, and through which the free end side of the terminal portion 12 protruding from the holder 21 is inserted into the terminal accommodating chamber 33 along the previous insertion direction. In the second housing 30, an assembly including the retainer 21 is inserted from the housing insertion opening 30a toward another outer wall (hereinafter referred to as the "second outer wall") 31b of the main body 31 that is disposed facing the first outer wall 31a with a gap therebetween (FIGS. 4, 6 to 10, 12, 14, and 17). That is, the assembly including the retainer 21 is inserted from the housing insertion opening 30a toward the second outer wall 31b of the main body 31 of the second housing 30 that is disposed facing the housing insertion opening 30a on the insertion direction side of the retainer 21. The partition wall 34 is vertically provided from the second outer wall 31b toward the housing insertion opening 30a (FIGS. 1, 4, 6 to 8, 10 to 12, and 15).

[0042] This housing insertion opening 30a is closed by the first housing 20 when the first housing 20 and the second housing 30 are in the assembled position. Here, the cover 22 of the first housing 20 is fitted into the housing insertion opening 30a (FIGS. 2, 4, 6 to 10, 12, 14, and 17).

[0043] The housing accommodating chamber 32 is a chamber connected to the housing insertion opening 30a, and the holder 21 is inserted through the housing insertion opening 30a together with the terminal fitting 10, or together with the terminal fitting 10 and the ferrite core 40. The housing accommodating chamber 32 shown here is formed as a rectangular space that matches the shape of the rectangular holder 21. In the second housing 30, the opening at the other end is closed by another outer wall (hereinafter referred to as the "third outer wall") 31c of the main body 31 that is disposed opposite the partition wall 34 in the cylindrical axial direction, and the third outer wall 31c is used together with the partition wall 34 as one of the walls that form the housing accommodating chamber 32 (FIGS. 4 to 8, 10, 12, 13, and 16).

[0044] The terminal accommodating chamber 33 is a chamber connected to the housing insertion opening 30a, and the free end side of the terminal portion 12 protruding from the retainer 21 is inserted through the housing insertion opening 30a. For this reason, the partition wall 34 is formed with a groove portion (hereinafter referred to as an "escape groove") 34a for avoiding the terminal portion 12 during the process of assembling the first housing 20 and the second housing 30 (Figs. 1, 4 to 8, 10 to 13, 15 and 16). This escape groove 34a is provided for each combination of the multiple terminal portions 12 arranged in the metal fitting arrangement direction.

[0045] Moreover, this terminal accommodating chamber 33 is a chamber in which the terminal portion 12 inside the chamber is inserted and fitted into the mating terminal fitting by inserting the mating terminal fitting in the second direction from a terminal insertion port 33a (FIGS. 1 to 17) on one opening side of the main body 31. As described above, in the connector 1 shown here, the mating connector is inserted and fitted from the terminal insertion port 33a. Therefore, here, one opening of the main body 31 is used as the terminal insertion port 33a when inserting the mating connector into the terminal accommodating chamber 33.

[0046] Furthermore, the second housing 30 has a second core locking portion 35 which is positioned opposite the end of the ferrite core 40 on the core insertion opening 23a side when the second housing 30 is in the completed assembly position with the first housing 20, and which locks the movement of the ferrite core 40 toward the core insertion opening 23a side (Figures 1, 4 to 8, 10 to 13, 15 and 16).

[0047] The second core locking portion 35 is disposed opposite to the end of the ferrite core 40 on the core insertion opening 23a side (first direction side) at the position where the first housing 20 and the second housing 30 are assembled, and is formed to lock the movement of the ferrite core 40 toward the core insertion opening 23a side. The ferrite core 40 shown here has its end on the core insertion opening 23a side (first direction side) disposed at a position equivalent to the core insertion opening 23a. For this reason, the second core locking portion 35 shown here is formed as a wall that covers and closes the core insertion opening 23a of the core accommodating chamber 23 from the outside of the core accommodating chamber 23. Here, the partition wall 34 is used as the second core locking portion 35. Here, it is desirable to sandwich the ferrite core 40 between the first core locking portion 23b and the second core locking portion 35 in order to suppress positional deviation in the core accommodating chamber 23, for example.

[0048] In the connector 1 of this embodiment, if ferrite cores 40 are required for all terminal portions 12 (i.e., all combinations of two terminal portions 12 in the metal fitting arrangement direction), all terminal fittings 10 are assembled to the first housing 20 and ferrite cores 40 are accommodated in all core accommodating chambers 23, and the first housing 20 together with the terminal fittings 10 and ferrite cores 40 are assembled to the second housing 30 (Figures 1 to 10).

[0049] Furthermore, in this connector 1, if the ferrite core 40 is required only for some of the terminal portions 12 (i.e., for at least one of all combinations of two terminal portions 12 in the metal fittings arrangement direction), all of the terminal fittings 10 are assembled to the first housing 20, and the ferrite core 40 is accommodated in the core accommodating chamber 23 corresponding to those some of the terminal portions 12 (i.e., for at least one of all combinations of two terminal portions 12 in the metal fittings arrangement direction), and the first housing 20 together with the terminal fittings 10 and ferrite core 40 is assembled to the second housing 30 (Figures 11 to 14).

[0050] In addition, in this connector 1, if the ferrite core 40 is not required, the ferrite core 40 is not placed in any of the core accommodating chambers 23, and all of the terminal fittings 10 are assembled to the first housing 20, and the first housing 20 together with the terminal fittings 10 is assembled to the second housing 30 (Figures 15 to 17).

[0051] In this way, the connector 1 of this embodiment can be appropriately used in a usage form with or without the ferrite core 40, and further, even if the connector 1 is provided with the ferrite core 40, it can be used in a usage form in which the ferrite core 40 is accommodated in all the core accommodating chambers 23 and a usage form in which the ferrite core 40 is accommodated in only some of the core accommodating chambers 23. For this reason, it is desirable that the connector 1 be made recognizable from the outside as to whether the ferrite core 40 is accommodated in the appropriate core accommodating chamber 23 or whether an unnecessary ferrite core 40 is accommodated in the core accommodating chamber 23. Therefore, in the connector 1 of this embodiment, the retainer 21 and the second housing 30 are configured as follows to have the identification function.

[0052] First, the retainer 21 is provided with a through hole (hereinafter referred to as a "communication hole") 27 that connects the core accommodating chamber 23 to the outside of the chamber (FIGS. 4, 7, 9, 10, 12 to 14, 16 and 17). This communication hole 27 may be a through hole that connects all of the core accommodating chambers 23 or a plurality of the core accommodating chambers 23 to the outside of the chamber, or may be a through hole provided for each core accommodating chamber 23. Here, a communication hole 27 is provided for each core accommodating chamber 23.

[0053] Next, the second housing 30 is provided with a core detector 36 that detects the presence or absence of the ferrite core 40 in the core accommodating chamber 23 by a change in its own shape when the second housing 30 is in the assembled position with the first housing 20 (FIGS. 1, 3 to 5, 7, and 9 to 17). Furthermore, the second housing 30 is provided with a detection window 37 that allows the change in shape of the core detector 36 to be recognized from the outside (i.e., the outside of the outer wall of the main body 31) (FIGS. 2 to 10, 12 to 14, 16, and 17).

[0054] The core detector 36 has a pushed portion 36a that enters the core accommodating chamber 23 from the communication hole 27 in conjunction with the accommodating operation of the holder 21 into the housing accommodating chamber 32, and is pushed back by the ferrite core 40 if the ferrite core 40 is accommodated in the core accommodating chamber 23, and a deforming portion 36b that allows a change in shape accompanying the movement of the pushed portion 36a to be recognized through a detection window 37 (FIGS. 4, 7, 10, 12, 13, and 16). It is desirable that the core detector 36 is formed so that the pushed portion 36a and the deforming portion 36b do not come into contact with the ferrite core 40 or the holder 21 and do not deform if the ferrite core 40 is not accommodated in the core accommodating chamber 23. The core detector 36 is provided for each core accommodating chamber 23.

[0055] The detection window 37 is formed in the outer wall of the second housing 30 (the outer wall of the main body 31) as a hole (through hole) that communicates the housing accommodation chamber 32 with the outside of the outer wall. The detection window 37 may be a window that allows an operator to visually check the shape change of the core detection body 36 from the outside, may be a window that allows the control device to recognize the shape change of the core detection body 36 by photographing the shape change of the core detection body 36 from the outside with an imaging device, or may be a window that allows the control device to recognize the shape change of the core detection body 36 by reflected light of a photoelectric sensor by infrared rays or the like irradiated from the outside. The detection window 37 may be a window that can recognize all the core detection bodies 36 or a plurality of the core detection bodies 36, or may be a window provided for each core accommodation chamber 23.

[0056] In the second housing 30 shown here, one core detector 36 and one detection window 37 are paired, and this pair of core detector 36 and detection window 37 is provided for each core accommodating chamber 23. Therefore, for example, this core detector 36 uses a flexible portion that is housed in the detection window 37 and is capable of bending deformation as a deformation portion 36b, and a pressed portion 36a is provided on this deformation portion 36b. The pressed portion 36a is provided in a protruding state on the deformation portion 36b. Specifically, the deformation portion 36b shown here is formed as a cantilevered flexible portion housed in the detection window 37. And the pressed portion 36a shown here is provided as a protrusion on the free end of the deformation portion 36b.

[0057] The combination of the core detection body 36 and the detection window 37 is provided on the outer wall of the main body 31 disposed opposite the holder 21 accommodated in the housing accommodation chamber 32. When the holder 21 is not accommodated in the housing accommodation chamber 32, the core detection body 36 has at least the pushed portion 36a protruding toward the housing accommodation chamber 32. Meanwhile, it is desirable that the core detection body 36 be formed in a shape that does not protrude from the detection window 37 (i.e., a shape that does not protrude outside the outer wall of the main body 31) when the pushed portion 36a is pushed back by the ferrite core 40 and the deformation portion 36b is flexibly deformed.

[0058] For example, the combination of the core detector 36 and the detection window 37 may be provided on the outer wall (second outer wall 31b) of the main body 31 that exists beyond the insertion direction of the holder 21 inserted into the housing chamber 32, or on the outer wall (third outer wall 31c, fourth outer wall 31d, fifth outer wall 31e) of the main body 31 that exists at a position perpendicular to the insertion direction of the holder 21 inserted into the housing chamber 32. The combination of the core detector 36 and the detection window 37 shown here is provided on the second outer wall 31b. Therefore, the detection window 37 is formed in the second outer wall 31b as a hole (through hole) that communicates the housing chamber 32 with the outside of the second outer wall 31b. The core detector 36 is formed in the detection window 37 in a cantilever shape with a part of the periphery of the detection window 37 as a fixed end. In this core detector 36, the deformation portion 36b is formed as a flexible portion capable of bending and deforming in the insertion direction of the holder 21 into the housing accommodating chamber 32 and in the opposite direction. In addition, the communication hole 27 of the holder 21 is formed in a location in the housing accommodating chamber 32 opposite to the pressed portion 36a and the detection window 37 of the core detector 36.

[0059] In the connector 1 of this embodiment, if the ferrite cores 40 are accommodated in all the core accommodating chambers 23 of the retainer 21, then by inserting the retainer 21 into the housing accommodating chamber 32, the pushed parts 36a of all the core detectors 36 enter the respective core accommodating chambers 23 through the communication holes 27, and all the pushed parts 36a in each core accommodating chamber 23 are pushed back against the ferrite cores 40. As a result, in this connector 1, shape changes occur in all the core detectors 36, and the respective shape changes can be recognized from all the detection windows 37.

[0060] Furthermore, in the connector 1 of this embodiment, if the ferrite cores 40 are accommodated only in some of the core accommodating chambers 23 of the retainer 21, then by inserting the retainer 21 into the housing accommodating chamber 32, the pushed parts 36a of all the core detectors 36 enter the respective core accommodating chambers 23 through the communication holes 27, and the pushed parts 36a are pushed back against the ferrite core 40 only in the core accommodating chambers 23 in which the ferrite core 40 is accommodated. As a result, in this connector 1, a shape change occurs in the core detectors 36 corresponding to the core accommodating chambers 23 in which the ferrite core 40 is accommodated, and this shape change can be recognized from the detection window 37, while no shape change occurs in the core detectors 36 corresponding to the core accommodating chambers 23 in which the ferrite core 40 is not accommodated, and it can be recognized from the detection window 37 that no shape change has occurred in the core detectors 36.

[0061] Furthermore, in the connector 1 of this embodiment, if the ferrite cores 40 are not accommodated in all the core accommodating chambers 23 of the retainer 21, inserting the retainer 21 into the housing accommodating chamber 32 causes the pushed parts 36a of all the core detectors 36 to enter the respective core accommodating chambers 23 from the communication holes 27, but no change in shape occurs in any of the core detectors 36. As a result, in this connector 1, it can be recognized from the detection window 37 that no change in shape occurs in any of the core detectors 36.

[0062] As described above, in the connector 1 of this embodiment, if the ferrite core 40 is required, it is possible to recognize from the outside whether or not the ferrite core 40 is housed in the appropriate core accommodating chamber 23. Also, in the connector 1 of this embodiment, if the ferrite core 40 is not required, it is possible to recognize from the outside whether or not the ferrite core 40 has been mistakenly housed in the core accommodating chamber 23. In this way, the connector 1 of this embodiment can easily identify the presence or absence of the ferrite core 40.

[0063] [Variations] A modified example of the connector according to the present invention will be described with reference to FIGS.

[0064] Reference numeral 2 in Figs. 19 to 30 denotes a connector of this modified example.

[0065] The connector 2 of this modification includes at least a terminal fitting 10 and a housing 120, and also includes a ferrite core 40 depending on whether noise removal on the circuit is required (FIGS. 19, 22 to 30). Note that, in this modification, the same terminal fitting 10 and ferrite core 40 as those in the connector 1 of the above-described embodiment are illustrated, but a different terminal fitting and ferrite core may be provided.

[0066] In the connector 2 of this modified example, the terminal fittings 10 are also arranged at intervals in the fitting arrangement direction as in the embodiment (FIGS. 19, 22, 24 to 27, and 29). That is, this connector 2 has a plurality of terminal fittings 10 arranged at intervals. The connector 2 shown here has two terminal fittings 10. Therefore, in these two terminal fittings 10, four combinations of two terminal portions 12 arranged in the fitting arrangement direction are provided.

[0067] The housing 120 corresponds to the first housing 20 and the second housing 30 of the embodiment integrated into one. The housing 120 is molded from an insulating material such as synthetic resin. In the connector 2 of this modification, the terminal fitting 10 is accommodated and held in the housing 120. In the connector 2 of this modification, the ferrite core 40 is accommodated and held in the housing 120. In the same manner as the holder 21 of the first housing 20 of the embodiment, the terminal fitting 10 is inserted into the housing 120 from the free end side of the terminal portion 12 in a first direction (FIGS. 22, 24, and 25). Meanwhile, unlike the holder 21 of the first housing 20 of the embodiment, the ferrite core 40 is also inserted into the housing 120 in a first direction (FIGS. 22, 24, and 25).

[0068] The housing 120 is formed in a cylindrical shape with both ends open in the cylindrical axis direction, and a partition wall 121 is disposed in the inner space facing the openings at both ends (FIGS. 22, 23, 25, 27, 28, and 30). The housing 120 shown here is formed in a rectangular cylindrical shape, and has a first outer wall 120a and a second outer wall 120b disposed at both ends in the metal arrangement direction of the terminal fittings 10, and a third outer wall 120c and a fourth outer wall 120d disposed at both ends in the terminal arrangement direction of the terminal parts 12 of the terminal fittings 10 (FIGS. 19 to 21, 24, 26, and 29). In this housing 120, the space on one opening side with the partition wall 121 as a boundary is used as a terminal accommodating chamber 122, and the space on the other opening side with the partition wall 121 as a boundary is used as a core accommodating chamber 123 (FIGS. 22, 23, 25, 27, 28, and 30).

[0069] The terminal accommodating chamber 122 accommodates the free end side of the terminal portion 12 of the terminal fitting 10 inserted from the other opening. Therefore, the partition wall 121 has a through hole 121a for each terminal portion 12, through which the terminal portion 12 is inserted from the core accommodating chamber 123 into the terminal accommodating chamber 122 (FIGS. 22, 23, 25, 27, 28, and 30). The terminal accommodating chamber 122 is a chamber in which the terminal portion 12 in the chamber is inserted into the mating terminal fitting by inserting the mating terminal fitting in the second direction from a terminal insertion opening 122a (FIGS. 20 to 25, 27, 28, and 30) on one opening side. In the connector 2 shown here, the mating connector is inserted and fitted from the terminal insertion opening 122a. Therefore, here, one opening of the housing 120 is used as the terminal insertion opening 122a when inserting the mating connector into the terminal accommodating chamber 122.

[0070] The core accommodating chamber 123 is an accommodating chamber for each ferrite core 40 capable of accommodating the ferrite core 40 with the terminal portion 12 inserted therethrough, and is formed similarly to the core accommodating chamber 23 of the holder 21 in the embodiment. Thus, the core accommodating chamber 123 is provided with a core insertion opening 123a through which the ferrite core 40 is inserted along the axial direction of the through hole 41, and a first core locking portion 123b that locks the end of the ferrite core 40 accommodated in the chamber on the opposite side to the core insertion opening 123a (FIGS. 22, 23, 25, 27, 28, and 30). However, unlike the core insertion opening 23a in the embodiment, the core insertion opening 123a in this modification is provided at the other opening of the housing 120 since the ferrite core 40 is inserted along the first direction. Moreover, unlike the first core locking portion 23b of the embodiment, the first core locking portion 123b of the present modification locks the end portion on the first direction side of the ferrite core 40 accommodated in the chamber, and therefore utilizes the wall surface on the first direction side within the chamber and also the wall surface on the second direction side of the partition wall 121. In this connector 2, the ferrite core 40 is sandwiched between the first core locking portion 123b and the base portion 11 of the terminal fitting 10 and secured in the core accommodating chamber 123.

[0071] In this modification, the core accommodating chambers 123 are also aligned along the terminal arrangement direction of the terminal portions 12 of the terminal fittings 10. In the housing 120, first partition walls 124A to third partition walls 124C are provided in the space on the other opening side of the partition wall 121 between the third outer wall 120c and the fourth outer wall 120d, the first partition walls 124A to third partition walls 124C being arranged opposite each other with a gap in the terminal arrangement direction and also opposite the third outer wall 120c and the fourth outer wall 120d with a gap in the terminal arrangement direction (FIGS. 19, 26, and 29). In the space on the other opening side, the first partition 124A to the third partition 124C are arranged so that the distance between the third outer wall 120c and the first partition 124A, the distance between the first partition 124A and the second partition 124B, the distance between the second partition 124B and the third partition 124C, and the distance between the third partition 124C and the fourth outer wall 120d are each equal. Therefore, in the housing 120 of this modified example, in the space on the other opening side, the space surrounded by the first outer wall 120a, the second outer wall 120b, the third outer wall 120c, and the first partition 124A, the space surrounded by the first outer wall 120a, the second outer wall 120b, the first partition 124A, and the second partition 124B, the space surrounded by the first outer wall 120a, the second outer wall 120b, the second partition 124B, and the third partition 124C, and the space surrounded by the first outer wall 120a, the second outer wall 120b, the third partition 124C, and the fourth outer wall 120d each become the core accommodating chamber 123.

[0072] The core accommodating chamber 123 is provided with a holding portion 125 for holding the ferrite core 40 (FIG. 19). The holding portion 125 is the same as the holding portion 25 of the embodiment. For this reason, the holding portion 125 includes a pair of first holding portions 125A for sandwiching both flat surfaces extending in the longitudinal direction (metal fitting arrangement direction) of the ferrite core 40, and a pair of second holding portions 125B for sandwiching both flat surfaces extending in the lateral direction (terminal arrangement direction) of the ferrite core 40 (FIG. 19). The pair of first holding portions 125A protrude from the first outer wall 120a and the second outer wall 120b toward the room side, respectively. The pair of second holding portions 125B protrude from the third outer wall 120c, the first partition wall 124A, the second partition wall 124B, the third partition wall 124C, and the fourth outer wall 120d toward the room side, respectively.

[0073] In the housing 120, the core accommodating chambers 123 are arranged in the terminal arrangement direction, and the base 11 of the terminal fitting 10 is accommodated across the core accommodating chambers 123. For this reason, the first partition wall 124A, the second partition wall 124B, and the third partition wall 124C in the terminal arrangement direction that form the core accommodating chamber 123 are formed with fitting grooves 120e into which the base 11 is inserted from the core insertion opening 123a (FIGS. 19, 22, 23, and 25 to 30). The fitting grooves 120e are grooves that extend in the first direction from the end faces of the first partition wall 124A, the second partition wall 124B, and the third partition wall 124C on the second direction side, and are formed with a groove width that allows the base 11 to be sandwiched from the respective planes.

[0074] In the connector 2 of this modified example, if ferrite cores 40 are required for all terminal portions 12 (i.e., all combinations of two terminal portions 12 in the metal fitting arrangement direction), the ferrite cores 40 are accommodated in all core accommodating chambers 23 and all terminal fittings 10 are assembled to the housing 120 (Figures 19 to 25).

[0075] Furthermore, in this connector 2, if a ferrite core 40 is required only for some of the terminal portions 12 (i.e., for at least one of all combinations of two terminal portions 12 in the metal fittings arrangement direction), the ferrite core 40 is accommodated in the core accommodating chamber 23 corresponding to those terminal portions 12 (i.e., at least one of all combinations of two terminal portions 12 in the metal fittings arrangement direction), and all of the terminal fittings 10 are assembled to the housing 120 (Figures 26 to 28).

[0076] Furthermore, in this connector 2, if the ferrite core 40 is not required, all the terminal fittings 10 are assembled to the housing 120 without housing the ferrite core 40 in any of the core accommodating chambers 123 (FIGS. 29 and 30).

[0077] In this manner, even in this modified example, the connector 2 can be appropriately used in a usage form with or without the ferrite core 40, and further, even if the connector 2 is provided with the ferrite core 40, it can be appropriately used in a usage form in which the ferrite core 40 is accommodated in all the core accommodating chambers 123 and a usage form in which the ferrite core 40 is accommodated in only some of the core accommodating chambers 123. For this reason, even in this modified example, it is desirable to make it possible to recognize from the outside whether the ferrite core 40 is accommodated in the appropriate core accommodating chamber 123 or whether an unnecessary ferrite core 40 is accommodated in the core accommodating chamber 23. Therefore, in the connector 2 of this modified example, the housing 120 is configured as follows to have the identification function.

[0078] The housing 120 is provided with a core detector 126 that detects the presence or absence of the ferrite core 40 in the core accommodating chamber 123 by a change in its shape (FIGS. 19, 21 to 23, and 25 to 30). Furthermore, the housing 120 is provided with a detection window 127 that allows the change in shape of the core detector 126 to be recognized from the outside (i.e., the outside of the outer wall) (FIGS. 20 to 25, 27, 28, and 30).

[0079] The core detector 126 of this modification has a pushed portion 126a that is pushed by the ferrite core 40 in conjunction with the accommodating operation of the ferrite core 40 in the core accommodating chamber 123, and a deforming portion 126b that allows a change in shape accompanying the movement of the pushed portion 126a to be recognized through a detection window 127 (FIGS. 22, 25, 27, 28, and 30). This core detector 126 is provided for each core accommodating chamber 123.

[0080] The detection window 127 is formed in the outer wall of the housing 120 as a hole (through hole) that communicates the core accommodating chamber 123 with the outside of the outer wall. Like the detection window 37 in the embodiment, the detection window 127 may be a window that allows an operator to visually check the shape change of the core detector 126 from the outside, or may be a window that allows the control device to recognize the shape change of the core detector 126 by photographing the shape change of the core detector 126 from the outside with an imaging device, or may be a window that allows the control device to recognize the shape change of the core detector 126 by reflected light of a photoelectric sensor by infrared rays or the like irradiated from the outside. Moreover, the detection window 127 may be a window that can recognize all the core detectors 126 or a plurality of the core detectors 126, or may be a window provided for each core accommodating chamber 123.

[0081] In the housing 120 shown here, one core detector 126 and one detection window 127 are paired, and this pair of core detector 126 and detection window 127 is provided for each core accommodating chamber 123. Thus, for example, in the core detector 126, like the core detector 36 of the embodiment, a flexible portion capable of bending deformation housed in the detection window 127 is used as a deformation portion 126b, and a pressed portion 126a is provided in this deformation portion 126b. The pressed portion 126a is provided in a protruding state in the deformation portion 126b. Specifically, in this modified example, the deformation portion 126b shown here is formed as a cantilevered flexible portion housed in the detection window 127. And the pressed portion 126a shown here is provided as a protrusion at the free end of the deformation portion 126b.

[0082] The combination of the core detector 126 and the detection window 127 is provided on the outer wall of the housing 120 arranged to face the ferrite core 40 accommodated in the core accommodating chamber 123. When the ferrite core 40 is not accommodated in the core accommodating chamber 123, the core detector 126 has at least the pushed portion 126a protruding toward the core accommodating chamber 123. Meanwhile, it is desirable to form the core detector 126 in a shape that does not protrude from the detection window 127 (i.e., a shape that does not protrude outside the outer wall of the housing 120) when the pushed portion 126a is pushed by the ferrite core 40 and the deformation portion 126b is flexibly deformed.

[0083] For example, the combination of the core detector 126 and the detection window 127 is provided in the outer wall (first outer wall 120a, second outer wall 120b, third outer wall 120c, fourth outer wall 120d) of the housing 120 at a location facing the peripheral wall of the ferrite core 40 accommodated in the core accommodating chamber 123 (FIGS. 21 to 23, 25, 27, 28, and 30). The combination of the core detector 126 and the detection window 127 shown here is provided in the second outer wall 120b. Therefore, the detection window 127 is formed in the second outer wall 120b as a hole (through hole) that communicates the core accommodating chamber 123 with the outside of the second outer wall 120b. The core detector 126 is formed in the detection window 127 in a cantilever shape with a part of the periphery of the detection window 127 as a fixed end. In this core detector 126 , the deformation portion 126 b is formed as a flexible portion capable of bending and deforming in a direction perpendicular to the insertion direction of the ferrite core 40 into the core accommodating chamber 123 .

[0084] In the connector 2 of this modification, if the ferrite cores 40 are accommodated in all the core accommodating chambers 123, the pushed parts 126a of all the core detectors 126 are pushed by the ferrite cores 40 by inserting the ferrite cores 40 into the core accommodating chambers 123. As a result, in the connector 2, shape changes occur in all the core detectors 126, and the respective shape changes can be recognized from all the detection windows 127.

[0085] Furthermore, in the connector 2 of this modification, if the ferrite core 40 is accommodated only in some of the core accommodating chambers 123, by inserting the ferrite core 40 into the core accommodating chambers 123, the pushed portion 126a of the core detector 126 is pushed by the ferrite core 40 only in the core accommodating chamber 123 into which the ferrite core 40 is inserted. As a result, in this connector 2, a shape change occurs in the core detector 126 corresponding to the core accommodating chamber 123 in which the ferrite core 40 is accommodated, and the shape change can be recognized from the detection window 127, while no shape change occurs in the core detector 126 corresponding to the core accommodating chamber 123 in which the ferrite core 40 is not accommodated, and it can be recognized from the detection window 127 that no shape change has occurred in the core detector 126.

[0086] In addition, in the connector 2 of this modification, if the ferrite core 40 is not accommodated in any of the core accommodating chambers 123, no change in shape occurs in any of the core detectors 126. As a result, in this connector 2, it can be recognized from the detection window 127 that no change in shape occurs in any of the core detectors 126.

[0087] As described above, in this modified example as well, if the ferrite core 40 is required in the connector 2, it is possible to recognize from the outside whether or not the ferrite core 40 is housed in the appropriate core accommodating chamber 123. Also, in this modified example as well, if the ferrite core 40 is not required in the connector 2, it is possible to recognize from the outside whether or not the ferrite core 40 has been mistakenly housed in the core accommodating chamber 123. In this way, the connector 2 of this modified example can easily identify whether or not the ferrite core 40 is present. [Explanation of symbols]

[0088] 1,2 Connector 10 Terminal fitting 11 Base 12 Terminal section 20 1st Housing 21 Holding body 23 Core Containment Room 27 Communication hole 30 Second Housing 30a Housing insertion port 31a 1st outer wall 31b 2nd outer wall 31c 3rd outer wall 31d 4th outer wall 31e 5th Outer Wall 32 Housing Chamber 36 Core detector 36a Pushed part 36b Deformation section 37 Detection window 40 Ferrite core 41 Through hole 120 Housing 123 Core Containment Room 126 Core detector 126a Pushed part 126b Deformation part 127 Detection window

Claims

1. a terminal fitting having a base and a plurality of cantilever terminal portions protruding from the base; a first housing provided with a holder for holding the terminal metal fittings; a second housing to which the first housing is attached and which accommodates the holding body together with the terminal metal fittings at a position where the first housing is attached; Equipped with the holding body has a core accommodating chamber for each ferrite core capable of accommodating a ferrite core with the terminal portion inserted into a through hole in a protruding direction thereof, and a communication hole that communicates the core accommodating chamber with the outside of the chamber, the second housing has a housing accommodating chamber that accommodates the holding body when the second housing is at an assembly completion position, a core detector that detects whether the ferrite core is accommodated in the core accommodating chamber by a change in shape of the core detector when the second housing is at the assembly completion position, and a detection window that allows the change in shape of the core detector to be recognized from the outside, The connector is characterized in that the core detection body has a pushed portion that enters the core accommodating chamber from the communicating hole in conjunction with the accommodating action of the holder into the housing accommodating chamber, and is pushed back by the ferrite core if the ferrite core is accommodated in the core accommodating chamber, and a deforming portion that allows a shape change accompanying the movement of the pushed portion to be recognized through the detection window.

2. the second housing has a housing insertion opening through which the holding body is inserted into the housing accommodating chamber along an insertion direction perpendicular to a protruding direction of the terminal portion, The connector as described in claim 1, characterized in that the detection window is formed as a hole in an outer wall of the second housing arranged opposite the housing insertion opening on the insertion direction side, connecting the housing accommodating chamber to the outside of the outer wall.

3. a terminal fitting having a base and a plurality of cantilever terminal portions protruding from the base; a housing that accommodates and holds the terminal fittings; Equipped with the housing has a core accommodating chamber for each ferrite core capable of accommodating a ferrite core with the terminal portion inserted into a through hole in a protruding direction thereof, a core detector that detects the presence or absence of the ferrite core in the core accommodating chamber by a change in its shape, and a detection window that allows the change in shape of the core detector to be recognized from the outside, The connector is characterized in that the core detection body has a pushed portion that is pushed by the ferrite core in conjunction with the accommodating action of the ferrite core into the core accommodating chamber, and a deforming portion that allows a shape change accompanying the movement of the pushed portion to be recognized through the detection window.

4. 4. A connector as described in claim 1, 2 or 3, characterized in that the core detection body utilizes a flexible portion that is capable of flexural deformation and is housed in the detection window as the deformation portion, and the pressed portion is provided on the deformation portion.

5. the deformation portion is a cantilevered flexible portion housed in the detection window, 5. The connector according to claim 4, wherein the pushed portion is provided at a free end of the deformation portion.

6. A plurality of the terminal fittings are arranged at intervals, A connector as described in any one of claims 1 to 5, characterized in that the ferrite core has a through hole formed for each combination of multiple terminal portions of each of the terminal fittings arranged in the arrangement direction of the multiple terminal fittings.

Images