connector

Abstract

To prevent detachment of a cover due to pressing force from a wire.SOLUTION: A connector comprises: a small-diameter shielded terminal 51 connected to a small-diameter shielded wire 61; an unshielded terminal 66 connected to a coated wire 67; and a housing 10 which has a wide terminal housing part 73 and a narrow terminal housing part 74. The wide terminal housing part 73 comprises a wide holding part 35 and a lid part 41. The narrow terminal housing part 74 comprises a narrow holding part 36 and the lid part 41. The lid part 41 comprises: tabular covering parts 42 which cover openings of the wide holding part 35 and the narrow holding part 36; and elastic pressure receiving parts 43 which protrude from the tabular covering parts 42 to the insides of the wide terminal housing part 73 and the narrow terminal housing part 74, and which can be elastically deformed by pressing force from the small-diameter shielded wire 61 or the coated wire 67.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present disclosure relates to connectors. [Background technology]

[0002] Patent Document 1 discloses a connector including a partition member having a groove-shaped partition-side accommodating recess, a cover for closing the opening of the partition-side accommodating recess, and a connection terminal. When the connection terminal is accommodated in the partition-side accommodating recess, a coaxial cable connected to the connection terminal is led out to the rear of the connector. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-107139 A Summary of the Invention [Problem to be solved by the invention]

[0004] There is a problem in that when a bending force acts on the portion of the coaxial cable that is led out to the rear of the connector and the coaxial cable presses against the cover, the cover comes off.

[0005] The connector of the present disclosure has been completed in view of the above circumstances, and has an object to prevent detachment of the cover due to pressing force from the electric wire. [Means for solving the problem]

[0006] The connector of the present disclosure comprises: A terminal metal fitting connected to a front end of the electric wire; a housing having a terminal accommodating portion; When the terminal fitting and the front end of the electric wire are accommodated in the terminal accommodating portion, the electric wire is led out from the rear surface of the housing to the outside of the housing, The terminal accommodating portion is configured to include a holding portion having a U-shaped cross section and a cover portion made of a separate member from the holding portion, The lid portion is A plate-shaped cover portion that covers the opening of the holding portion; The terminal housing further includes an elastic pressure-receiving portion that protrudes from the plate-shaped cover portion into the terminal accommodating portion and is capable of elastic deformation due to a pressing force from the electric wire. Effect of the Invention

[0007] According to the present disclosure, it is possible to suppress the concentration of stress caused by the pressing force from the electric wire. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a state in which the connector of the first embodiment and the mating connector are separated from each other. FIG. [Diagram 2] FIG. 2 is an exploded perspective view of the housing. [Diagram 3] FIG. 3 is a perspective view of a large diameter shielded terminal, a small diameter shielded terminal, and an unshielded terminal. [Figure 4] FIG. 4 is a side cross-sectional view of the connector. [Diagram 5] FIG. 5 is a cross-sectional view seen from behind, showing a locking structure between the upper member and the outer housing. [Figure 6] FIG. 6 is a cross-sectional view seen from behind, showing the locking structure between the lower member and the outer housing. [Figure 7] FIG. 7 is a cross-sectional view seen from behind, showing the locking structure between the cover and the outer housing. [Figure 8] FIG. 8 is a partially enlarged cross-sectional view seen from behind, showing a state in which no pressing force is applied from the small-diameter shielded electric wire to the cover. [Figure 9] FIG. 9 is a partially enlarged cross-sectional view seen from behind, showing a state in which a downward pressing force is applied to the cover from the small-diameter shielded electric wire. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described. The connector of the present disclosure comprises: (1) A terminal fitting connected to a front end of an electric wire and a housing having a terminal accommodating portion, in a state where the terminal fitting and the front end of the electric wire are accommodated in the terminal accommodating portion, the electric wire is led out from the rear surface of the housing to the outside of the housing, the terminal accommodating portion is configured to include a holding portion having a U-shaped cross section and a lid portion made of a member separate from the holding portion, the lid portion includes a plate-shaped cover portion covering an opening of the holding portion, and an elastic pressure-receiving portion protruding from the plate-shaped cover portion into the inside of the terminal accommodating portion and capable of elastic deformation by a pressing force from the electric wire. According to the configuration of the present disclosure, when the electric wire in the holding portion is displaced toward the lid portion, the elastic pressure-receiving portion is elastically deformed by the pressing force from the electric wire, so that the stress generated in the lid portion is distributed to the plate-shaped cover portion and the elastic pressure-receiving portion. If the deformation amount of the lid portion becomes large, there is a concern that the lid portion will come off from the holding portion. In view of this point, the maximum deformation amount of the lid portion is suppressed by dispersing the stress generated in the lid portion, so that the lid portion is maintained in a state attached to the holding portion. According to the present disclosure, it is possible to prevent the cover from coming off the holding portion due to a pressing force acting on the lid portion from the electric wire.

[0010] (2) It is preferable that the holding portion has a base portion facing the plate-shaped covering portion and a pair of side wall portions extending from both side edges of the base toward the plate-shaped covering portion, the elastic pressure-receiving portion is disposed along the side wall portions, and the elastic pressure-receiving portion is pressed against the side wall portions when the elastic pressure-receiving portion is elastically deformed by the pressing force from the electric wire. According to this configuration, when the pressing force from the electric wire acts on the elastic pressure-receiving portion, the lid portion is pressed in a direction away from the base, but the frictional resistance generated between the elastic pressure-receiving portion and the side wall portions can prevent the lid portion from being displaced in a direction away from the base.

[0011] (3) In (2), it is preferable that the contact area of ​​the wire in the elastic pressure receiver is configured by an inclined surface inclined in a direction perpendicular to the plate-shaped cover. With this configuration, when the wire is displaced in a direction perpendicular to the plate-shaped cover and presses against the inclined surface, part of the pressing force acting from the wire to the elastic pressure receiver becomes a component force in a direction toward the side wall due to the inclination of the inclined surface. The greater the displacement of the wire, the greater the elastic deformation of the elastic pressure receiver. However, when the elastic deformation of the elastic pressure receiver increases to a certain extent, the elastic pressure receiver abuts against the side wall, so that the elastic deformation of the elastic pressure receiver does not increase any further. This makes it possible to suppress the stress generated in the elastic pressure receiver.

[0012] (4) In (2) or (3), it is preferable that the electric wire is held in a non-contact state with the plate-shaped covering part when the elastic pressure-receiving part is pressed against the side wall part. With this configuration, the pressing force from the electric wire does not directly act on the plate-shaped covering part, so that the stress generated in the plate-shaped covering part is reduced and the amount of elastic deformation of the plate-shaped covering part is suppressed. By suppressing the deformation of the plate-shaped covering part, the lid part is less likely to come off.

[0013] (5) In a rear view of the housing from the rear, the elastic pressure-receiving portion is preferably wedge-shaped so as to narrow toward the tip in the protruding direction from the plate-shaped cover portion. With this configuration, among the stresses generated in the elastic pressure-receiving portion when a pressing force from the electric wire acts on the elastic pressure-receiving portion, the component of the force in the direction perpendicular to the protruding direction of the elastic pressure-receiving portion near the contact point with the electric wire is smaller on the base end side in the protruding direction connected to the plate-shaped cover portion than on the tip side in the protruding direction. Therefore, the component of the force generated in the plate-shaped cover portion connected to the base end in the protruding direction of the elastic pressure-receiving portion is also kept small, and it is possible to prevent the lid portion from coming off due to deformation of the plate-shaped cover portion.

[0014] (6) In a rear view of the housing from the rear, the pair of elastic pressure-receiving parts are preferably arranged symmetrically with respect to a virtual axis of symmetry perpendicular to the plate-shaped cover part. If the displacement path of the electric wire is biased toward one of the elastic pressure-receiving parts or the electric wire is twisted in the process of displacing the electric wire in a direction approaching the plate-shaped cover part, there is a concern that the load on the connection part with the terminal metal fitting will increase. As a countermeasure to this, the pair of elastic pressure-receiving parts are arranged symmetrically with respect to the virtual axis of symmetry to prevent the electric wire from approaching one of the elastic pressure-receiving parts or from twisting. This makes it possible to suppress the load on the connection part between the terminal metal fitting and the electric wire.

[0015] [Details of the embodiment of the present disclosure] [Example 1] A first embodiment of the present disclosure will be described with reference to Figs. 1 to 9. The present invention is not limited to these examples, but is shown by the claims, and is intended to include all modifications within the meaning and scope of the claims. In this first embodiment, the front-rear direction is defined as the positive direction of the X-axis in Figs. 1 to 4 as the front. The left-right direction is defined as the positive direction of the Y-axis in Figs. 1 to 3 and 5 to 9 as the right. The left-right direction and the width direction are used synonymously. The up-down direction is defined as the positive direction of the Z-axis in Figs. 1 to 9 as the up. The up-down direction and the height direction are used synonymously.

[0016] The connector A of the present embodiment 1 has a shielding function and is mated from below with a mating connector B (see FIG. 1) mounted on the underside of a circuit board (not shown). The mating connector B has a shielding function and includes a mating housing H and a plurality of mating shield terminals T.

[0017] The connector A is configured by assembling one housing 10 (see Figs. 1 and 2), a plurality of (six in this embodiment 1) shielded terminals 50, 51 (see Fig. 3), and one unshielded terminal 66 (see Fig. 3). The housing 10 is configured by assembling an outer housing 11 made of synthetic resin and an inner housing 12. As shown in Fig. 2, the outer housing 11 is a single part having a frame portion 13 and a plurality of cylindrical fitting portions 24 disposed adjacent to the front of the frame portion 13. The frame portion 13 has a horizontal upper wall portion 14 whose plate thickness direction is oriented in the vertical direction, and a pair of outer wall portions 15 extending downward from both left and right side edges of the upper wall portion 14.

[0018] As shown in FIG. 5, the widthwise center of the upper wall portion 14 functions as a plate-shaped first base portion 16 with the thickness direction as the up-down direction. The upper wall portion 14 has three first sidewall portions 17 arranged in the widthwise direction with the plate thickness direction facing the widthwise direction. The three first sidewall portions 17 are shaped to protrude downward from the widthwise center position and both widthwise end edges of the first base portion 16. A pair of first sidewall portions 17 located on both sides in the widthwise direction are connected to the inner side surface of the outer wall portion 15 and form a pair of first step portions 18. One first holding portion 19 is formed by a part of the first base portion 16 and two first sidewall portions 17 adjacent to each other on the left and right. The frame portion 13 has a pair of first holding portions 19 arranged on the left and right, sharing one first sidewall portion 17 located in the widthwise center.

[0019] A second step portion 20 is formed in the center in the height direction on the inner surfaces of both the left and right outer wall portions 15. As shown in Fig. 5, the second step portion 20 is located below the first step portion 18 and is recessed toward the outer wall portion 15 more than the first step portion 18. A first lock hole 21 (see Figs. 2 and 5), a second lock hole 22 (see Figs. 2 and 6), and a third lock hole 23 (see Figs. 2 and 7) are formed in each of the left and right outer wall portions 15.

[0020] The multiple cylindrical fitting portions 24 are cylindrical with their axes oriented in the up-down direction. The multiple cylindrical fitting portions 24 are aligned in the front-rear and left-right directions. As shown in Fig. 4, the lower end of the internal space of each cylindrical fitting portion 24 communicates with the internal space of the frame portion 13. The multiple cylindrical fitting portions 24 are fitted into the mating housing H of the mating connector B from below.

[0021] 2, 4 to 7, the inner housing 12 is made of synthetic resin, and is configured by stacking and assembling an upper member 25, a lower member 30, and a cover 40 one above the other. The inner housing 12 is assembled to the outer housing 11 in a state where it is accommodated within the frame portion 13.

[0022] The upper member 25 is a single component having one second base portion 26 having a plate-like shape with a plate thickness direction facing the up-down direction, and three second side wall portions 27. The three second side wall portions 27 are arranged at intervals in the left-right direction with the plate thickness direction facing the left-right direction. The three second side wall portions 27 protrude downward from the center position in the width direction and both ends in the width direction of the second base portion 26. One second holding portion 28 is formed by a part of the second base portion 26 and two second side wall portions 27 adjacent to each other in the left and right direction. The upper member 25 has a pair of second holding portions 28 arranged side by side and sharing one second side wall portion 27. A pair of upper side locking projections 29 is formed on both left and right outer surfaces of the upper member 25.

[0023] The lower member 30 is a single component having one wide base 31, one narrow base 32 narrower than the wide base 31, three thick sidewalls 33, and one thin sidewall 34. The wide base 31 and the narrow base 32 are plate-shaped with their plate thicknesses facing the up-down direction. The wide base 31 is formed over a range in the width direction from the left end of the lower member 30 to a position to the right of the center in the width direction of the lower member 30. The narrow base 32 is formed over a range from the right end of the wide base 31 to the right end of the lower member 30. The narrow base 32 is disposed at a lower position than the wide base 31.

[0024] The three thick sidewalls 33 and one thin sidewall 34 are plate-shaped with the plate thickness direction facing the left-right direction, and are arranged at intervals in the left-right direction. The thin-walled cutout sidewall 34 is arranged between the thick sidewall 33 at the left end and the thick sidewall 33 at the center in the left-right direction. The three thick sidewalls 33 protrude downward from both ends of the wide base 31 in the width direction and from the right end of the narrow base 32. The thin sidewall 34 protrudes downward from the center in the width direction of the wide base 31. The wide base 31 is a portion arranged in the region between the thick sidewall 33 at the left end and the thick sidewall 33 at the center in the left-right direction. The narrow base 32 is a portion arranged in the region between the thick sidewall 33 at the center in the left-right direction and the thick sidewall 33 at the right end.

[0025] As shown in Figs. 5 to 9, one wide holding portion 35 is formed by a part of the wide base portion 31, and one thick side wall portion 33 and thin side wall portion 34 protruding from the wide base portion 31. The lower member 30 has a pair of wide holding portions 35 arranged side by side and sharing one thin side wall portion 34. One narrow holding portion 36 is formed by the narrow base portion 32, the thick side wall portion 33 protruding from the right end of the wide base portion 31, and the thick side wall portion 33 protruding from the right end of the narrow base portion 32. The right wide holding portion 35 and the narrow holding portion 36 are arranged side by side and share the right thick side wall portion 33. A pair of lower side locking protrusions 37 are formed on both the left and right outer surfaces of the lower member 30.

[0026] The cover 40 is a single part having a lid portion 41 and a pair of left and right locking engagement walls 46. The lid portion 41 is a portion configured by one plate-shaped covering portion 42 and three pairs of elastic pressure receiving portions 43 protruding upward from the plate-shaped covering portion 42. The plate-shaped covering portion 42 is in the shape of a flat plate with its plate thickness direction facing the up-down direction. The formation range of the plate-shaped covering portion 42 in the width direction covers the entire width region from the left end of the cover 40 to the right end of the cover 40. The pair of locking engagement walls 46 are in the shape of a plate extending upward from both left and right side edges of the plate-shaped covering portion 42. The cover side locking projections 47 are formed on the outer surfaces of both locking engagement walls 46.

[0027] As shown in FIG. 2, the elastic pressure receiving portion 43 is shaped like a rib elongated in the front-rear direction and is disposed at the rear end of the cover 40. The rear end surface of the elastic pressure receiving portion 43 and the rear end surface of the cover 40 are flush with each other. As shown in FIGS. 8 and 9, in a rear view of the housing 10 seen from the rear, the elastic pressure receiving portion 43 has a right-angled triangle shape, i.e., a wedge shape whose width gradually decreases toward the front of the protruding direction from the plate-shaped cover portion 42. The elastic pressure receiving portion 43 has a friction surface 44 and a pressure receiving surface 45. The friction surface 44 is a vertical plane, i.e., a plane parallel to the plate thickness direction of the plate-shaped cover portion 42. The pressure receiving surface 45 is a plane inclined with respect to the vertical direction, i.e., a flat inclined surface extending in a direction inclined with respect to the plate thickness direction of the plate-shaped cover portion 42. When the elastic pressure receiving portion 43 receives a downward pressing force against the pressure receiving surface 45 (diagonal direction with respect to the pressure receiving surface 45), it is elastically deformed so as to fall toward the friction surface 44 side. Since the elastic pressure-receiving portion 43 is wedge-shaped and narrows toward the top, the amount of elastic deformation of the elastic pressure-receiving portion 43 is maximum at the upper end of the elastic pressure-receiving portion 43 and becomes smaller toward the lower end side of the elastic pressure-receiving portion 43. At the lower end portion of the elastic pressure-receiving portion 43, there is almost no elastic deformation.

[0028] A pair of elastic pressure receiving parts 43 are housed in the wide holding part 35. A pair of elastic pressure receiving parts 43 is also housed in the narrow holding part 36. The two pair of elastic pressure receiving parts 43 are arranged so as to be spaced apart in the width direction. In rear view, the elastic pressure receiving parts 43 constituting one pair have a shape symmetrical with respect to a virtual axis of symmetry V (see FIG. 9) parallel to the plate thickness direction of the plate-shaped covering part 42. The pair of elastic pressure receiving parts 43 are arranged so that the pressure receiving surfaces 45 face each other in the width direction. The three pairs of elastic pressure receiving parts 43 are arranged so as to be aligned in the width direction.

[0029] 3 and 4, the multiple shield terminals 50, 51 are bent into an L-shape in a side view of the shield terminals 50, 51. The multiple shield terminals 50, 51 include three large-diameter shield terminals 50 and three small-diameter shield terminals 51. The shield terminals 50, 51 each have an inner conductor 52 bent into an L-shape, a dielectric 53 that houses the inner conductor 52, and an outer conductor 54 that surrounds the dielectric 53. The outer conductor 54 is formed by combining a first shell 55 having an L-shape with a second shell 56 having a crimping portion 57.

[0030] The large shield terminal 50 is electrically connected to a front end of a large shielded electric wire 60 made of a coaxial cable. The small shield terminal 51 is electrically connected to a front end of a small shielded electric wire 61 made of a coaxial cable. The large shielded electric wire 60 and the small shielded electric wire 61 each have a core wire 62, an insulating coating 63 surrounding the core wire 62, a shield layer 64 surrounding the insulating coating 63, and a sheath 65 surrounding the shield layer 64. The rear end of the inner conductor 52 is fixed to the core wire 62. The crimped portion 57 of the outer conductor 54 is electrically connected to the shield layer 64.

[0031] As shown in Fig. 3, the unshielded terminal 66 is bent into an L-shape in a side view of the unshielded terminal 66. The unshielded terminal 66 is electrically connected to a front end of a coated electric wire 67 that does not have a shielding function. As shown in Figs. 8 and 9, the coated electric wire 67 has a core wire 68 and an insulating coating 69 that surrounds the core wire 68.

[0032] The procedure for assembling the connector A of the present embodiment 1 will be described. First, the two large shielded terminals 50 are attached to the outer housing 11 without the inner housing 12 attached. At this time, the upwardly facing front end portions of the large shielded terminals 50 are accommodated in the cylindrical fitting portion 24, and the portion of the large shielded terminals 50 surrounded by the second shell 56 is accommodated in the first holding portion 19.

[0033] Next, the upper member 25 is assembled into the frame 13 from below the outer housing 11. The upper member 25 is locked in the assembled state by abutting the left and right ends of the second base 26 against the first step 18 and engaging the upper locking projection 29 with the first locking hole 21. When the upper member 25 is assembled into the outer housing 11, the second base 26 closes the opening in the lower surface of the first holding portion 19, thereby forming a pair of left and right first terminal accommodating portions 71 (see Figs. 4 and 6). The large diameter shielded terminal 50 and the front end of the large diameter shielded electric wire 60 are accommodated in the first terminal accommodating portion 71. The large diameter shielded electric wire 60 is led out from the rear surface of the housing 10 to the outside rearward.

[0034] Next, one large diameter shield terminal 50 and one small diameter shield terminal 51 are attached to the outer housing 11 and the upper member 25. At this time, the upward front end portion of each shield terminal 50, 51 is accommodated in the cylindrical fitting portion 24, and the portion of each shield terminal 50, 51 surrounded by the second shell 56 is accommodated in the second holding portion 28.

[0035] Next, the lower member 30 is assembled into the frame 13 from below the outer housing 11. The lower member 30 is locked in the assembled state by abutting the left end of the wide base 31 and the right end of the narrow base 32 against the second step 20 and by engaging the lower locking projection 37 with the second locking hole 22. When the lower member 30 is assembled into the outer housing 11, the wide base 31 closes the opening on the lower surface of the second holding portion 28, thereby forming a pair of left and right second terminal accommodating portions 72 (see Figs. 4 and 6). The large-diameter shielded terminal 50 and the front end of the large-diameter shielded electric wire 60 are accommodated in one second terminal accommodating portion 72. The large-diameter shielded electric wire 60 is led out rearward from the rear surface of the housing 10. The small-diameter shielded terminal 51 and the front end of the small-diameter shielded electric wire 61 are accommodated in the other second terminal accommodating portion 72. The small diameter shielded electric wire 61 is led out from the rear surface of the housing 10 to the rear outside.

[0036] Next, the two small diameter shielded terminals 51 and one unshielded terminal 66 are attached to the outer housing 11 and the lower member 30. At this time, the upward front end portions of the small diameter shielded terminal 51 and the unshielded terminal 66 are accommodated in the cylindrical fitting portion 24. The portion of the small diameter shielded terminal 51 that is surrounded by the second shell 56 is accommodated in the wide holding portion 35. The unshielded terminal 66 is accommodated in the narrow holding portion 36.

[0037] Next, the cover 40 is attached to the outer housing 11 from below, and the plate-shaped covering portion 42 of the cover 40 closes the opening on the bottom surface of the frame portion 13. The attached cover 40 abuts against the bottom surface of the lower member 30, and the cover-side locking projections 47 engage with the third locking holes 23, thereby locking the cover 40 in the attached state to the outer housing 11. When the cover 40 is attached to the outer housing 11, the assembly of the connector A is completed.

[0038] When the cover 40 is attached to the outer housing 11, the plate-shaped covering portion 42 closes the opening on the lower surface of the wide holding portion 35, thereby forming a pair of left and right wide terminal accommodating portions 73 (see Figs. 8 and 9). The small-diameter shielded terminal 51 and the front end of the small-diameter shielded electric wire 61 are accommodated in the wide terminal accommodating portion 73. The small-diameter shielded electric wire 61 is led out from the rear surface of the housing 10 to the rear outside. The plate-shaped covering portion 42 closes the opening on the lower surface of the narrow holding portion 36, thereby forming a narrow terminal accommodating portion 74 (see Figs. 8 and 9). The unshielded terminal 66 and the front end of the covered electric wire 67 are accommodated in the narrow terminal accommodating portion 74. The covered electric wire 67 is led out from the rear surface of the housing 10 to the rear outside.

[0039] When the cover 40 is attached to the outer housing 11, a pair of elastic pressure receiving parts 43 are housed in each of the two wide holding parts 35 and one narrow holding part 36. In each of the two wide holding parts 35, one elastic pressure receiving part 43 is disposed along the thick side wall part 33, and the other elastic pressure receiving part 43 is disposed along the thin side wall part 34. When the part of the small-diameter shielded electric wire 61 housed in the wide holding part 35 and the part led out to the rear of the housing 10 are in a straight line without being curved, as shown in FIG. 8, the small-diameter shielded electric wire 61 and the elastic pressure receiving part 43 are in a positional relationship with a clearance therebetween without contacting each other. Therefore, the elastic pressure receiving part 43 is not elastically deformed. The small-diameter shielded electric wire 61 and the plate-shaped cover part 42 are also in a positional relationship with a clearance therebetween without contacting each other. In a free state in which the elastic pressure-receiving portion 43 is not elastically deformed, the friction surface 44 of the elastic pressure-receiving portion 43 maintains a positional relationship in which it faces the thick side wall portion 33 and the thin side wall portion 34 in the width direction with a small clearance therebetween.

[0040] In the narrow holding portion 36, a pair of elastic pressure receiving portions 43 are arranged along the thick side wall portion 33. When the portion of the insulated electric wire 67 housed in the narrow holding portion 36 and the portion led out to the rear of the housing 10 are in a straight line without being curved, the insulated electric wire 67 and the elastic pressure receiving portion 43 are not in contact with each other and are in a positional relationship with a clearance therebetween. Therefore, the elastic pressure receiving portion 43 is not elastically deformed. The insulated electric wire 67 and the plate-shaped cover portion 42 are also not in contact with each other and are in a positional relationship with a clearance therebetween. In a free state in which the elastic pressure receiving portion 43 is not elastically deformed, the friction surface 44 of the elastic pressure receiving portion 43 maintains a positional relationship in which it faces the thick side wall portion 33 in the width direction with a small clearance therebetween.

[0041] As shown in FIG. 4, when the small-diameter shielded electric wire 61 led out from the wide terminal accommodating portion 73 is pulled downward and bent, the small-diameter shielded electric wire 61 comes into contact with the pressure-receiving surfaces 45 of the left and right elastic pressure-receiving portions 43 as shown in FIG. 9. When the small-diameter shielded electric wire 61 is further displaced downward from this state, a downward pressing force from the small-diameter shielded electric wire 61 acts on the cover 40. Here, since the pressure-receiving surfaces 45 are set in an oblique direction with respect to the pressing direction of the pressing force, a part of the downward pressing force from the small-diameter shielded electric wire 61 becomes a component force in the left and right direction against the elastic pressure-receiving portion 43. This component force causes the elastic pressure-receiving portion 43 to elastically deform in the width direction. In the state in which the elastic pressure-receiving portion 43 is elastically deformed, the small-diameter shielded electric wire 61 does not come into contact with the upper surface of the plate-shaped cover portion 42. Therefore, the stress generated in the cover portion 41 is not concentrated on the plate-shaped cover portion 42 but is dispersed to the elastic pressure-receiving portion 43.

[0042] When the elastic pressure-receiving portion 43 elastically deforms in the width direction, the friction surface 44 is pressed against the thick side wall portion 33 and the thin side wall portion 34, so that friction resistance may be generated between the friction surface 44 and the thick side wall portion 33 and between the friction surface 44 and the thin side wall portion 34. This friction resistance is a force that resists the downward pressing force acting from the small-diameter shielded electric wire 61 to the lid portion 41, and therefore it is possible to suppress the plate-shaped covering portion 42 from moving downward or being elastically deformed so as to bulge downward. In a state in which the friction surface 44 is pressed against the thick side wall portion 33 and the thin side wall portion 34, the small-diameter shielded electric wire 61 does not come into contact with the upper surface of the plate-shaped covering portion 42.

[0043] Since the thin sidewall portion 34 has a lower rigidity against external forces in the left-right direction than the thick sidewall portion 33, there is a concern that the thin sidewall portion 34 may deform in such a way as to escape the pressure in the width direction received from the elastic pressure-receiving portion 43. However, a pair of elastic pressure-receiving portions 43 are present on both the left and right sides of the thin sidewall portion 34 so as to sandwich the thin sidewall portion 34. When the two small-diameter shielded electric wires 61 led out from the left and right wide holding portions 35 are bundled together with other electric wires 60, 67, for example, the two small-diameter shielded electric wires 61 are displaced downward as a unit. Therefore, the thin sidewall portion 34 is pressed from the left and right by the pair of elastic pressure-receiving portions 43 so as to sandwich it, and is not deformed in the width direction.

[0044] In addition, when the covered electric wire 67 led out from the narrow terminal accommodating portion 74 is pulled downward, a downward pressing force from the covered electric wire 67 acts on the cover 40, as in the case of the small-diameter shielded electric wire 61. A part of the downward pressing force from the covered electric wire 67 becomes a component force in the left-right direction on the elastic pressure-receiving portion 43, so that the elastic pressure-receiving portion 43 is elastically deformed in the width direction. In the elastically deformed state of the elastic pressure-receiving portion 43, the covered electric wire 67 does not contact the upper surface of the plate-shaped cover portion 42. Therefore, the stress generated in the lid portion 41 is dispersed. When the elastic pressure-receiving portion 43 is elastically deformed in the width direction, the friction surface 44 is pressed against the thick side wall portion 33, and a frictional resistance is generated between the friction surface 44 and the thick side wall portion 33. This frictional resistance can suppress the plate-shaped cover portion 42 from being displaced downward or being elastically deformed so as to bulge downward. When the friction surface 44 is pressed against the thick side wall portion 33 , the coated electric wire 67 does not come into contact with the upper surface of the plate-shaped cover portion 42 .

[0045] The connector A of the first embodiment includes a small diameter shielded terminal 51 connected to a front end of a small diameter shielded electric wire 61, an unshielded terminal 66 connected to a front end of a covered electric wire 67, and a housing 10 having a wide terminal accommodating portion 73 and a narrow terminal accommodating portion 74. When the small diameter shielded terminal 51 and the front end of the small diameter shielded electric wire 61 are accommodated in the wide terminal accommodating portion 73, the small diameter shielded electric wire 61 is led out from the rear surface of the housing 10 to the outside of the housing 10. When the unshielded terminal 66 and the front end of the covered electric wire 67 are accommodated in the narrow terminal accommodating portion 74, the covered electric wire 67 is led out from the rear surface of the housing 10 to the outside of the housing 10.

[0046] The wide terminal accommodating portion 73 is configured with the wide holding portion 35 having a U-shaped cross section and the lid portion 41 made of a separate member from the wide holding portion 35. The lid portion 41 is attached to the wide holding portion 35. The narrow terminal accommodating portion 74 is configured with the narrow holding portion 36 having a U-shaped cross section and the lid portion 41 made of a separate member from the narrow holding portion 36. The lid portion 41 is configured with a plate-shaped cover portion 42 and an elastic pressure-receiving portion 43. The lid portion 41 is attached to the narrow holding portion 36. The plate-shaped cover portion 42 covers the opening on the lower surface of the wide holding portion 35 and the opening on the lower surface of the narrow holding portion 36. The elastic pressure-receiving portion 43 protrudes from the plate-shaped cover portion 42 into the inside of the wide terminal accommodating portion 73 or the inside of the narrow terminal accommodating portion 74, and can be elastically deformed by the pressing force from the small-diameter shielded electric wire 61 or the pressing force from the covered electric wire 67.

[0047] According to the above configuration, when the small-diameter shielded electric wire 61 in the wide holding portion 35 is displaced toward the lid portion 41, the elastic pressure-receiving portion 43 is elastically deformed by the pressing force from the small-diameter shielded electric wire 61, so that the stress generated in the lid portion 41 is distributed to the plate-shaped cover portion 42 and the elastic pressure-receiving portion 43. When the covered electric wire 67 in the narrow holding portion 36 is displaced toward the lid portion 41, the elastic pressure-receiving portion 43 is elastically deformed by the pressing force from the covered electric wire 67, so that the stress generated in the lid portion 41 is distributed to the plate-shaped cover portion 42 and the elastic pressure-receiving portion 43. This makes it possible to suppress concentration of stress generated in the lid portion 41 due to the pressing force from the small-diameter shielded electric wire 61 and the covered electric wire 67. If the stress generated in the lid portion 41 is concentrated at a specific point, the amount of elastic deformation at that portion increases, so that there is a risk that the cover-side locking protrusion 47 of the lid portion 41 will come off the third locking hole 23 of the outer housing 11. At this time, since a pressing force from the small diameter shielded electric wire 61 is applied to the lid portion 41, there is a concern that the lid portion 41 may come off from the wide holding portion 35 and the narrow holding portion 36. As a countermeasure to this, the stress generated in the lid portion 41 is dispersed and the maximum deformation amount of the lid portion 41 is suppressed, so that the lid portion 41 is held in a state attached to the wide holding portion 35 and the narrow holding portion 36. Therefore, according to the first embodiment, it is possible to prevent the cover 40 from coming off the outer housing 11 (the wide holding portion 35 and the narrow holding portion 36) due to the downward pressing force acting on the lid portion 41 from the small diameter shielded electric wire 61.

[0048] The wide holding portion 35 has the wide base portion 31 facing the plate-shaped cover portion 42, and a pair of side walls (thick side wall portion 33 and thin side wall portion 34) extending from both side edges of the wide base portion 31 toward the plate-shaped cover portion 42. The elastic pressure receiving portion 43 is disposed so as to follow the thick side wall portion 33 or the thin side wall portion 34. When the elastic pressure receiving portion 43 is elastically deformed by the pressing force from the small-diameter shielded electric wire 61, the elastic pressure receiving portion 43 is pressed against the thick side wall portion 33 or the thin side wall portion 34. When the pressing force from the small-diameter shielded electric wire 61 acts on the elastic pressure receiving portion 43, the lid portion 41 is pressed in a direction away from the wide base portion 31, but the frictional resistance generated between the elastic pressure receiving portion 43 and the thick side wall portion 33 or the thin side wall portion 34 can prevent the lid portion 41 from being displaced in a direction away from the wide base portion 31.

[0049] The narrow holding portion 36 has a narrow base portion 32 facing the plate-shaped covering portion 42, and a pair of thick sidewall portions 33 extending from both side edges of the narrow base portion 32 toward the plate-shaped covering portion 42. The elastic pressure-receiving portion 43 is disposed along the thick sidewall portions 33. When the elastic pressure-receiving portion 43 is elastically deformed by the pressing force from the coated electric wire 67, the elastic pressure-receiving portion 43 is pressed against the thick sidewall portions 33. When the pressing force from the coated electric wire 67 acts on the elastic pressure-receiving portion 43, the lid portion 41 is pressed in a direction away from the narrow base portion 32, but the frictional resistance generated between the elastic pressure-receiving portion 43 and the thick sidewall portions 33 can prevent the lid portion 41 from being displaced in a direction away from the narrow base portion 32.

[0050] The pressure receiving surface 45, which is the contact area of ​​the small shielded electric wire 61 and the covered electric wire 67 in the elastic pressure receiving portion 43, is configured as an inclined surface inclined in the up-down direction perpendicular to the plate-shaped covering portion 42. With this configuration, when the small shielded electric wire 61 or the covered electric wire 67 is displaced downward perpendicular to the plate-shaped covering portion 42 and presses the pressure receiving surface 45, part of the pressing force acting from the small shielded electric wire 61 or the covered electric wire 67 on the elastic pressure receiving portion 43 becomes a component force in the width direction toward the thick side wall portion 33 or the thin side wall portion 34 due to the inclination of the pressure receiving surface 45. During the process in which the small shielded electric wire 61 or the covered electric wire 67 is displaced, the elastic pressure receiving portion 43 can be reliably pressed against the thick side wall portion 33 or the thin side wall portion 34. Furthermore, as the downward displacement of the small-diameter shielded electric wire 61 increases, the elastic deformation of the elastic pressure-receiving portion 43 in the left-right direction also increases, but when the elastic deformation of the elastic pressure-receiving portion 43 increases to a certain level, the elastic pressure-receiving portion 43 comes into contact with the thick side wall portion 33 and the thin side wall portion 34, so that the elastic deformation of the elastic pressure-receiving portion 43 does not increase any more. Therefore, the stress generated in the elastic pressure-receiving portion 43 can be suppressed.

[0051] When the elastic pressure-receiving portion 43 is pressed against the thick side wall portion 33 or the thin side wall portion 34, the small-diameter shielded electric wire 61 or the covered electric wire 67 is held out of contact with the plate-shaped covering portion 42. With this configuration, the pressing force from the small-diameter shielded electric wire 61 or the covered electric wire 67 does not act directly on the plate-shaped covering portion 42, so that the stress generated in the plate-shaped covering portion 42 is reduced and the amount of elastic deformation of the plate-shaped covering portion 42 is suppressed. By suppressing the deformation of the plate-shaped covering portion 42, the lid portion 41 becomes less likely to come off the wide holding portion 35 and the narrow holding portion 36.

[0052] In a rear view of the housing 10 seen from the rear, the pair of elastic pressure-receiving portions 43 are provided symmetrically with respect to a virtual symmetric axis V perpendicular to the plate-shaped covering portion 42. If the displacement path of the small-diameter shielded electric wire 61 is biased toward one of the elastic pressure-receiving portions 43 or the small-diameter shielded electric wire 61 is twisted in the process of the small-diameter shielded electric wire 61 being displaced in the direction approaching the plate-shaped covering portion 42, there is a concern that the load on the connection portion between the small-diameter shielded electric wire 61 and the crimping portion 57 of the small-diameter shielded terminal 51 will increase. If the displacement path of the covered electric wire 67 is biased toward one of the elastic pressure-receiving portions 43 or the covered electric wire 67 is twisted in the process of the covered electric wire 67 being displaced in the direction approaching the plate-shaped covering portion 42, there is also a concern that the load on the connection portion between the covered electric wire 67 and the unshielded terminal 66 will increase. As a countermeasure, the pair of elastic pressure-receiving parts 43 are shaped and arranged symmetrically with respect to the imaginary axis of symmetry V to prevent the small diameter shielded electric wire 61 and the covered electric wire 67 from approaching or twisting toward one of the elastic pressure-receiving parts 43. This makes it possible to suppress loads from being generated at the connection part between the small diameter shielded terminal 51 and the small diameter shielded electric wire 61 and the connection part between the unshielded terminal 66 and the covered electric wire 67.

[0053] In a rear view of the housing 10 seen from the rear, the elastic pressure-receiving portion 43 has a wedge shape narrowing toward the tip in the protruding direction from the plate-shaped cover portion 42. According to this configuration, when a pressing force from the small-diameter shielded electric wire 61 or the coated electric wire 67 acts on the elastic pressure-receiving portion 43, the stress generated in the elastic pressure-receiving portion 43 is not uniform. That is, the component force in the direction perpendicular to the protruding direction of the elastic pressure-receiving portion 43 (left-right direction) is smaller at the tip side (upper end side) in the protruding direction than the contact portion with the small-diameter shielded electric wire 61 or the coated electric wire 67, compared with the component force at the base end side (lower end side) in the protruding direction than the contact portion with the small-diameter shielded electric wire 61 or the coated electric wire 67. Therefore, the stress generated in the plate-shaped cover portion 42 connected to the base end in the protruding direction of the elastic pressure-receiving portion 43 is also suppressed to be small, and the lid portion 41 can be prevented from coming off the wide holding portion 35 and the narrow holding portion 36 due to the deformation of the plate-shaped cover portion 42.

[0054] [Other Examples] The present invention is not limited to the embodiments described above and shown in the drawings, but is indicated by the claims. The present invention includes the equivalent meaning of the claims and all modifications within the scope of the claims, and is intended to include the following embodiments. The shape of the elastic pressure-receiving portion may be a shape other than a wedge shape when viewed from the rear of the housing. The contact area of ​​the shielded electric wire in the elastic pressure-receiving portion is not limited to a flat inclined surface, but may be a curved surface. The elastic pressure-receiving portion is not limited to one that protrudes along the thick side wall portion from both widthwise ends of the plate-shaped covering portion, but may also protrude from the widthwise center of the plate-shaped covering portion toward the shielded electric wire, or may be an arc-shaped portion that is inserted between both widthwise ends of the plate-shaped covering portion and bulges toward the shielded electric wire. The pair of elastic pressure-receiving portions protruding into one wide holding portion and one narrow holding portion may be asymmetrical in rear view. The number of elastic pressure-receiving portions protruding into one wide holding portion or one narrow holding portion may be only one. In the first embodiment, the elastic pressure receiving portion is formed only on the cover, but the elastic pressure receiving portion may be formed upward on the second base portion of the lower member so that the large diameter shielded electric wire or the small diameter shielded electric wire accommodated in the second terminal accommodating portion (second holding portion of the upper member) comes into contact with this elastic pressure receiving portion. Also, the elastic pressure receiving portion may be formed upward on the first base portion of the upper member so that the large diameter shielded electric wire accommodated in the first terminal accommodating portion (first holding portion of the outer housing) comes into contact with this elastic pressure receiving portion. [Explanation of symbols]

[0055] 10. Housing 11…Outer housing 12…Inner housing 13…Frame 14...Top wall part 15...Outer wall part 16...1st base 17...First side wall portion 18…First step 19...First holding part 20…Second step 21…First lock hole 22...Second lock hole 23…Third lock hole 24...Cylindrical fitting portion 25…Upper member 26…Second base 27...Second side wall portion 28…Second holding part 29…Upper lock protrusion 30...Lower member 31…Wide base (base) 32…Narrow base (base) 33…Thick side wall portion (side wall portion) 34...Thin side wall portion (side wall portion) 35…Wide holding part (holding part) 36...Narrow holding part (holding part) 37…Lower side lock protrusion 40…Cover 41...Lid part 42...Plate-shaped cover part 43...Elastic pressure receiving part 44…Friction surface 45...Pressure receiving surface (contact area of ​​the wire in the elastic pressure receiving part) 46…Lock retaining wall 47…Cover side lock protrusion 50...Large diameter shield terminal 51...Small diameter shield terminal (terminal fitting) 52…Inner conductor 53...Dielectric 54…Outer conductor 55…First shell 56…Second shell 57…Crimping part 60...Large diameter shielded wire 61...Small diameter shielded wire (wire) 62…Core wire 63...Insulating coating 64…Shield layer 65…Sheath 66...Non-shielded terminal (terminal fitting) 67…Coated wire (electric wire) 68…Core wire 69…Insulating coating 71...First terminal housing 72...Second terminal housing 73...Wide terminal housing (terminal housing) 74...Narrow terminal receiving section (terminal receiving section) A…Connector B: Mating connector H: Mating housing T: Shield terminal on the other side V: Virtual axis of symmetry

Claims

1. A terminal metal fitting connected to a front end of the electric wire; a housing having a terminal accommodating portion; When the terminal fitting and the front end of the electric wire are accommodated in the terminal accommodating portion, the electric wire is led out from the rear surface of the housing to the outside of the housing, The terminal accommodating portion is configured to include a holding portion having a U-shaped cross section and a lid portion made of a separate member from the holding portion, The lid portion is A plate-shaped cover portion that covers the opening of the holding portion; an elastic pressure-receiving portion protruding from the plate-shaped cover portion into the terminal accommodating portion, In the terminal accommodating portion, the electric wire in the holding portion is allowed to be displaced toward the cover portion, The elastic pressure-receiving portion is a connector that is elastically deformed by a pressing force from the electric wire displaced toward the cover portion.

2. The holding portion has a base portion facing the plate-shaped covering portion and a pair of side wall portions extending from both side edges of the base toward the plate-shaped covering portion, The elastic pressure-receiving portion is disposed along the side wall portion, The elastic pressure-receiving portion, when not elastically deformed, maintains a positional relationship in which it faces the side wall portion with a clearance therebetween, 2. The connector according to claim 1, wherein the elastic pressure-receiving portion is pressed against the side wall portion when the elastic pressure-receiving portion is elastically deformed by a pressing force from the electric wire.

3. 3. The connector according to claim 2, wherein a contact area of ​​said elastic pressure-receiving portion with said electric wire is formed by an inclined surface inclined with respect to a direction perpendicular to said plate-shaped cover portion.

4. 4. The connector according to claim 2, wherein the electric wire is held out of contact with the plate-shaped cover when the elastic pressure-receiving portion is pressed against the side wall portion.

5. 5. A connector as described in claim 1, wherein, in a rear view of the housing from the rear, the elastic pressure-receiving portion has a wedge shape that narrows toward the tip in the protruding direction from the plate-shaped cover portion.

6. 6. A connector as described in any one of claims 1 to 5, wherein, in a rear view of the housing from the rear, a pair of the elastic pressure-receiving portions are arranged symmetrically with respect to a virtual axis of symmetry perpendicular to the plate-shaped cover portion.

Images