JP2024054916A - Fit connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fit connector capable of improving the stability of a contact part between a male terminal and a female terminal.

SOLUTION: A fit connector 1 comprises: a first housing 2 with a first fitting part 21; a male terminal 5 fixed to the first housing so that it cannot move relatively to the first housing; a second housing 6 with a second fitting part 62; a female terminal 9 fixed to the second housing so that it cannot move relatively to the second housing; and a conductive spring arranged on the female terminal and through which the male terminal is inserted. The male terminal is inserted into the spring in a state where one of the first and second fitting parts is pressed into the other. The spring arranged on the female terminal 9 is a spring member 40, for example.

SELECTED DRAWING: Figure 11

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a mating connector.

Conventionally, there are connectors in which housings are fitted together. Patent Document 1 discloses a connector that includes a female terminal housing in which multiple terminal accommodating chambers are formed, each accommodating a female terminal, and a male terminal housing that holds multiple male terminals to be connected to the female terminals. In the connector of Patent Document 1, the male terminal housing and the female terminal housing are fitted together with a first engagement portion and a second engagement portion that engage with each other at a first fitting position and a second fitting position when fitted together.

JP 2013-247053 A

In a mating connector that fits two housings together, it is desirable to be able to improve the stability of the contact points between the male and female terminals. For example, it is preferable to be able to suppress the impact on the contact points when vibrations are input from the outside.

The object of the present invention is to provide a mating connector that can improve the stability of the contact points between the male and female terminals.

The mating connector of the present invention comprises a first housing having a first mating portion, a male terminal fixed to the first housing so as not to move relative to the first housing, a second housing having a second mating portion, a female terminal fixed to the second housing so as not to move relative to the second housing, and a conductive spring disposed on the female terminal and into which the male terminal is inserted, the male terminal being inserted into the spring with one of the first and second mating portions being pressed into the other mating portion.

The mating connector of the present invention is disposed on the female terminal and includes a conductive spring into which the male terminal is inserted, and the male terminal is inserted into the spring with one of the first and second mating portions being press-fitted into the other mating portion. The mating connector of the present invention has the effect of improving the stability of the contact portion between the male terminal and the female terminal.

FIG. 1 is a perspective view of a mating connector according to an embodiment. FIG. 2 is an exploded perspective view of the first connector according to the embodiment. FIG. 3 is a front view of the first housing and the male terminal according to the embodiment. FIG. 4 is a cross-sectional view of the first housing and the male terminal according to the embodiment. FIG. 5 is an exploded perspective view of the second connector according to the embodiment. FIG. 6 is a front view of the second housing and the female terminal according to the embodiment. FIG. 7 is a cross-sectional view of the second housing and the female terminal according to the embodiment. FIG. 8 is a perspective view of a spring member according to the embodiment. FIG. 9 is a cross-sectional view of the second housing and the female terminal according to the embodiment. FIG. 10 is a cross-sectional view of the first connector and the second connector before connection. FIG. 11 is a cross-sectional view of the first connector and the second connector after connection.

Below, a mating connector according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to this embodiment. Furthermore, the components in the following embodiment include those that a person skilled in the art would easily imagine or that are substantially the same.

[Embodiment]
An embodiment will be described with reference to Fig. 1 to Fig. 11. This embodiment relates to a mating connector. Fig. 1 is a perspective view of the mating connector according to the embodiment, Fig. 2 is an exploded perspective view of the first connector according to the embodiment, Fig. 3 is a front view of the first housing and the male terminal according to the embodiment, Fig. 4 is a cross-sectional view of the first housing and the male terminal according to the embodiment, Fig. 5 is an exploded perspective view of the second connector according to the embodiment, Fig. 6 is a front view of the second housing and the female terminal according to the embodiment, Fig. 7 is a cross-sectional view of the second housing and the female terminal according to the embodiment, Fig. 8 is a perspective view of the spring member according to the embodiment, Fig. 9 is a cross-sectional view of the second housing and the female terminal according to the embodiment, Fig. 10 is a cross-sectional view of the first connector and the second connector before connection, and Fig. 11 is a cross-sectional view of the first connector and the second connector after connection.

Figure 4 shows a cross section taken along line IV-IV in Figure 3. Figure 7 shows a cross section taken along line VII-VII in Figure 6. Figure 9 shows a cross section taken along line IX-IX in Figure 7.

As shown in FIG. 1, the mating connector 1 of this embodiment has a first connector 10 and a second connector 20. The first connector 10 is fixed to a wall surface 110 of a wall portion 100. The first housing 2 of the first connector 10 has a flange portion 23. The flange portion 23 is fixed to the wall portion 100 by a plurality of bolts 16. The wall portion 100 is formed of a conductive metal and is, for example, a part of a housing that houses a device. The wall portion 100 has a through hole into which the first connector 10 is inserted.

The first connector 10 and the second connector 20 are mated along the axial direction X. The axial direction X is the axial direction of the first housing 2 of the first connector 10, the axial direction of the second housing 6 of the second connector 20, and is the mating direction in which the first connector 10 and the second connector 20 are mated.

In this specification, the width direction of the first connector 10 and the second connector 20 is simply referred to as the "width direction Y." Also, the height direction of the first connector 10 and the second connector 20 is simply referred to as the "height direction Z." The width direction Y is perpendicular to the axial direction X. The height direction Z is perpendicular to both the axial direction X and the width direction Y.

The mating connector 1 of this embodiment is a shielded connector having a first shell 11 and a second shell 12 made of metal. The shells 11 and 12 are grounded to the wall portion 100 and form a shield that blocks noise. A cylindrical braid is connected to the second shell 12.

As shown in FIG. 2, the first connector 10 has a first housing 2, a packing 3, a rear holder 4, and a male terminal 5. The first housing 2 is molded, for example, from an insulating synthetic resin. The first housing 2 has a first mating portion 21, a first tubular portion 22, and a flange portion 23. The first mating portion 21 is a portion that mates with the second mating portion 62 of the second connector 20. The shape of the first mating portion 21 in a cross section perpendicular to the axial direction X is approximately rectangular. In this embodiment, the first mating portion 21 is integrally molded with the male terminal 5.

The first fitting portion 21 has a recess 24 into which the second fitting portion 62 of the second connector 20 is press-fitted. As shown in FIG. 3, the first housing 2 holds two male terminals 5. The two male terminals 5 are arranged side by side in the width direction Y. The recess 24 is arranged coaxially with the male terminal 5 so as to accommodate the first connecting portion 51 (see FIG. 4) of the male terminal 5. Thus, the first fitting portion 21 has two recesses 24 arranged side by side in the width direction Y. The recesses 24 extend in the axial direction X. The shape of the recess 24 is a cylinder coaxial with the male terminal 5.

The first tubular portion 22 protrudes from the first fitting portion 21 in the axial direction X. The shape of the first tubular portion 22 in a cross section perpendicular to the axial direction X is a generally rectangular tube shape. The flange portion 23 protrudes from the outer surface of the first tubular portion 22 in a direction perpendicular to the axial direction X. The flange portion 23 holds a number of collars 23a. The bolt 16 is inserted into the collars 23a and screws into the threaded hole 100a of the wall portion 100.

The packing 3 has a ring shape and is attached to the outer surface of the first fitting portion 21. The rear holder 4 engages with the first fitting portion 21 to hold the packing 3. The first fitting portion 21 with the packing 3 attached is inserted into the through hole 100b of the wall portion 100. The packing 3 seals between the wall surface of the through hole 100b and the first fitting portion 21.

As shown in FIG. 4, the male terminal 5 has a first connection portion 51, a second connection portion 52, and a flange portion 53. The male terminal 5 is formed of a conductive metal. The second connection portion 52 is a portion that is connected to the device 200. The second connection portion 52 has a prismatic shape and is provided with a through hole 52a. The first connection portion 51 protrudes from the second connection portion 52 in the axial direction X. The shape of the first connection portion 51 is a cylindrical shape. A cap 54 molded from an insulating synthetic resin is attached to the tip of the first connection portion 51. The flange portion 53 protrudes from the second connection portion 52 in a direction perpendicular to the axial direction X. The flange portion 53 is disposed at the end of the second connection portion 52 on the side of the first connection portion 51. The shape of the flange portion 53 is, for example, a disk shape.

The male terminal 5 is fixed to the first housing 2 so that it cannot move relative to the first housing 2. In the illustrated male terminal 5, a part of the second connection portion 52 and the flange portion 53 are fixed to the first housing 2. In this embodiment, the method of fixing the male terminal 5 to the first housing 2 is such that the first housing 2 is integrally molded with the male terminal 5. The first fitting portion 21 of the first housing 2 is insert molded with the flange portion 53 and second connection portion 52 of the male terminal 5.

The first housing 2 has a fixing portion 21a that fixes the flange portion 53. The fixing portion 21a is a wall portion disposed at the end of the first fitting portion 21. The fixing portion 21a holds the flange portion 53 and the second connection portion 52 so that the male terminal 5 cannot move relative to the first housing 2. The fixing portion 21a sandwiches the flange portion 53 from both sides in the axial direction X, and covers the flange portion 53 from the outside in the radial direction. The fixing portion 21a fixes the male terminal 5 so that it cannot move in each of the axial direction X, width direction Y, and height direction Z.

As shown in FIG. 5, the second connector 20 has a second housing 6, a packing 7, a front holder 8, a female terminal 9, a first shell 11, and a second shell 12. The second housing 6 is molded, for example, from an insulating synthetic resin. The second housing 6 has a main body 61, a second fitting portion 62, an insertion portion 63, and a tube portion 64.

The main body 61 has a cylindrical shape and is open on the rear side in the axial direction X. The cross-sectional shape of the main body 61 in a cross section perpendicular to the axial direction X is approximately rectangular. The insertion portion 63 is disposed on the front side of the main body 61. The insertion portion 63 protrudes from the main body 61 in the axial direction X. The cross-sectional shape of the insertion portion 63 in a cross section perpendicular to the axial direction X is approximately rectangular. The insertion portion 63 is a portion that is inserted into the first cylindrical portion 22 of the first housing 2. The packing 7 has a ring shape and is attached to the outer peripheral surface of the insertion portion 63. The front holder 8 engages with the insertion portion 63 to hold the packing 7.

The second fitting portion 62 protrudes from the insertion portion 63 in the axial direction X. The second fitting portion 62 holds a female terminal 9 and is press-fitted into the recess 24 of the first housing 2. As shown in FIG. 6, the second housing 6 holds two female terminals 9. The two female terminals 9 are arranged side by side in the width direction Y. The female terminals 9 extend in the axial direction X. The second fitting portion 62 is arranged coaxially with the female terminals 9 so as to surround the female terminals 9. The second housing 6 has two second fitting portions 62 arranged side by side in the width direction Y.

The second fitting portion 62 is generally cylindrical in shape. The outer peripheral surface of the second fitting portion 62 is provided with a plurality of ribs 62a that protrude in the radial direction of the second fitting portion 62. The plurality of ribs 62a are arranged at equal intervals along the circumferential direction. The ribs 62a extend from the base end to the tip end of the second fitting portion 62 along the axial direction X. The illustrated second fitting portion 62 has six ribs 62a. The tube portion 64 protrudes from the main body 61 in the height direction Z. The tube portion 64 is formed so that a terminal-equipped electric wire can be inserted into it. The terminal inserted into the tube portion 64 is connected to the female terminal 9 inside the main body 61.

As shown in FIG. 7, the female terminal 9 has a first connecting portion 91, a second connecting portion 92, and a flange portion 93. The female terminal 9 is formed of a conductive metal. The first connecting portion 91 is connected to the first connecting portion 51 of the male terminal 5. The first connecting portion 91 has a cylindrical tube portion 91a that accommodates the first connecting portion 51 of the male terminal 5. The inner diameter of the tube portion 91a is larger than the outer diameter of the first connecting portion 51.

The second connection part 92 is connected to the terminal 310 of the electric wire with terminal 300. In this embodiment, the shape of the second connection part 92 is a rectangular column shape. The second connection part 92 is housed in the internal space of the main body 61. The electric wire with terminal 300 has a terminal 310 and an electric wire 320. The illustrated terminal 310 has a flat connection part 310a with a through hole and a crimping part 310b. The crimping part 310b is crimped to the core wire of the electric wire 320. The terminal 310 is inserted from the tube part 64 along the height direction Z and faces the end face of the second connection part 92.

The second connection part 92 has a threaded hole 92a extending in the axial direction X. The connection part 310a is fastened to the second connection part 92 by a male screw member 330. The male screw member 330 is inserted into the through hole of the connection part 310a and screws into the threaded hole 92a. The opening on the rear side of the main body 61 is closed by the rear holder 65.

The flange portion 93 is disposed between the tubular portion 91a and the second connection portion 92. The flange portion 93 protrudes from the outer peripheral surface of the first connection portion 91 in a direction perpendicular to the axial direction X. In this embodiment, the flange portion 93 has a circular ring shape. The flange portion 93 has a portion that protrudes radially from the second connection portion 92.

The female terminal 9 is fixed to the second housing 6 so that it cannot move relative to the second housing 6. In the illustrated female terminal 9, substantially the entire first connection portion 91, a portion of the second connection portion 92, and the flange portion 93 are fixed to the second housing 6. In this embodiment, the second housing 6 is integrally molded with the female terminal 9 as a method for fixing the female terminal 9 to the second housing 6. The second fitting portion 62 and the insertion portion 63 of the second housing 6 are insert molded with the first connection portion 91, the second connection portion 92, and the flange portion 93 of the female terminal 9.

The insertion portion 63 covers the first connection portion 91, the second connection portion 92, and the flange portion 93 from the radial outside, and fixes the female terminal 9. The insertion portion 63 sandwiches the flange portion 93 from both sides in the axial direction X. The insertion portion 63 fixes the female terminal 9 so that it cannot move in each of the axial direction X, the width direction Y, and the height direction Z.

The second mating portion 62 is formed in a cylindrical shape that covers the outer peripheral surface of the first connecting portion 91 of the female terminal 9. The first connecting portion 91 functions as a reinforcing portion that supports the second mating portion 62 from the inside. As a result, it is possible to reduce the thickness of the second mating portion 62 and make the mating connector 1 smaller.

The spring member 40 is housed in the cylindrical portion 91a of the female terminal 9. An annular recess 91b that holds the spring member 40 is provided on the inner peripheral surface of the cylindrical portion 91a. The recess 91b is recessed toward the outer peripheral surface of the cylindrical portion 91a. The recess 91b supports the spring member 40 from both sides in the axial direction X and positions the spring member 40.

As shown in FIG. 8, the spring member 40 has a pair of ring portions 41 and a plurality of contact pieces 42. The spring member 40 is formed of a conductive metal. The spring member 40 may be formed from a single metal plate. The ring portions 41 are disposed at both ends of the spring member 40 in the axial direction X. The ring portions 41 are plate-shaped and have a curved shape corresponding to the shape of the cylindrical portion 91a. When viewed from the axial direction X, the shape of the ring portions 41 is a shape in which a portion of the circumference is cut out. In other words, the ring portions 41 have a C-shape.

The multiple contact pieces 42 are arranged in a circumferential direction R1 centered on the central axis CX of the tubular portion 91a. The extension direction of the contact pieces 42 is the axial direction X. One end of the contact piece 42 is connected to one ring portion 41, and the other end of the contact piece 42 is connected to the other ring portion 41. In other words, the contact piece 42 is supported by the two ring portions 41. The contact piece 42 has a tapered shape that narrows toward the end in the axial direction X.

As shown in Figures 8 and 9, the contact pieces 42 are inclined with respect to the tangent direction of a circle centered on the central axis CX. As shown in Figure 9, the shape of the contact pieces 42 in a cross section perpendicular to the axial direction X is approximately S-shaped. Each contact piece 42 has an inner contact portion 42a and an outer contact portion 42b.

The inner contact portion 42a is a portion that comes into contact with the first connecting portion 51 of the male terminal 5. The inner contact portion 42a is one end of the contact piece 42 in the circumferential direction R1, and is curved toward the central axis line CX. The inner contact portion 42a is located radially inward relative to the ring portion 41. When the first connecting portion 51 is not inserted into the spring member 40, the diameter of a circle C1 inscribed in the contact piece 42 is smaller than the outer diameter of the first connecting portion 51. Therefore, the first connecting portion 51 is inserted into the spring member 40 while contacting the contact piece 42 and elastically deforming the contact piece 42.

The outer contact portion 42b is the portion that comes into contact with the inner peripheral surface of the tubular portion 91a. The outer contact portion 42b is the other end of the contact piece 42 in the circumferential direction R1, and is curved toward the side opposite the central axis CX. The contact piece 42 is inclined so that the outer contact portion 42b comes into contact with the inner peripheral surface of the tubular portion 91a, and the inner contact portion 42a is spaced apart from the inner peripheral surface of the tubular portion 91a.

As shown in FIG. 8, the edge of the ring portion 41 is provided with a number of support pieces 41a bent radially outward. The support pieces 41a are arranged at equal intervals along the circumferential direction R1. The ring portion 41 is accommodated in the tubular portion 91a with the support pieces 41a in contact with the inner peripheral surface of the tubular portion 91a. The recesses 91b of the tubular portion 91a position the spring member 40 by engaging the support pieces 41a.

The first shell 11 and the second shell 12 shown in FIG. 5 cover the second housing 6 and constitute a shield that blocks noise. The first shell 11 and the second shell 12 are formed of a conductive metal. The first shell 11 covers the second housing 6 from the rear side in the axial direction X. The second shell 12 is attached to the tube portion 64 along the height direction Z. The first shell 11 and the second shell 12 are fastened together to the second housing 6 by a male screw member 13. The first shell 11 is grounded to the wall portion 100. The second shell 12 is grounded to the wall portion 100 via the first shell 11. The braid is attached to the second shell 12 by the fixing member 14. The fixing member 14 is, for example, a metal tie made of metal.

Figure 10 shows the second connector 20 before it is connected to the first connector 10. The first connector 10 is fixed to the wall portion 100 by the bolts 16. The second connector 20 is connected to the first connector 10 along the axial direction X. At this time, the second mating portion 62 of the second connector 20 is press-fitted into the first mating portion 21 of the first connector 10. In addition, the first connecting portion 51 of the male terminal 5 is inserted into the tubular portion 91a of the female terminal 9. The first connecting portion 51 is inserted into the spring member 40 arranged inside the tubular portion 91a.

Figure 11 shows the second connector 20 after completion of connection to the first connector 10. The second mating portion 62 of the second housing 6 is press-fitted into the first mating portion 21 of the first housing 2. The second mating portion 62 is press-fitted into the first mating portion 21 while deforming the rib 62a. By pressing the second mating portion 62 into the first mating portion 21, the second housing 6 is rigidly fixed to the first housing 2. In other words, the first housing 2 and the second housing 6 are integrated. Therefore, when vibration is input from the outside to the mating connector 1, the contact portion between the male terminal 5 and the female terminal 9 is less susceptible to the effects of the vibration.

The first connecting portion 51 of the male terminal 5 is inserted into the spring member 40 of the female terminal 9. The spring member 40 absorbs tolerances by elastically deforming. For example, if the female terminal 9 is eccentric with respect to the male terminal 5, the spring member 40 elastically deforms to absorb this misalignment. In other words, in the mating connector 1 of this embodiment, the spring member 40 absorbs positional misalignment caused by tolerances and part play. Since the spring member 40 can absorb positional misalignment, it is possible to eliminate the clearance between the first housing 2 and the male terminal 5. It is also possible to eliminate the clearance between the second housing 6 and the female terminal 9. By eliminating these clearances, the mating connector 1 can be made smaller.

As described above, the mating connector 1 of this embodiment has a first housing 2, a male terminal 5, a second housing 6, a female terminal 9, and a conductive spring member 40. The first housing 2 has a first mating portion 21. The male terminal 5 is fixed to the first housing 2 so as not to move relative to the first housing 2. The second housing 6 has a second mating portion 62. The female terminal 9 is fixed to the second housing 6 so as not to move relative to the second housing 6. The spring member 40 is an example of a spring disposed in the female terminal 9. The male terminal 5 is inserted into the spring member 40.

The male terminal 5 is inserted into the spring member 40 with the second mating portion 62 pressed into the first mating portion 21. Because the second mating portion 62 is pressed into the first mating portion 21, the contact portion between the male terminal 5 and the female terminal 9 is less susceptible to the effects of vibration. Therefore, the mating connector 1 of this embodiment can improve the stability of the contact portion.

The mating connector 1 may be configured so that the first mating portion 21 is press-fitted into the second mating portion 62. In this case, a gap is provided between the female terminal 9 and the second mating portion 62, and the first mating portion 21 is inserted into this gap.

In this embodiment, the first housing 2 is integrally molded with the male terminal 5. The second housing 6 is integrally molded with the female terminal 9. By integrally molding the housing with the terminal, it is possible to improve the positional accuracy of the terminal. Note that the means for fixing the terminal to the housing is not limited to integral molding. For example, the male terminal 5 may be press-fitted into the first housing 2. The female terminal 9 may be press-fitted into the second housing 6.

The female terminal 9 of this embodiment has a cylindrical tube portion 91a that houses the male terminal 5. The spring arranged in the female terminal 9 is a spring member 40 housed in the tube portion 91a. The spring member 40 has a plurality of contact pieces 42 arranged in a circumferential direction R1 centered on the central axis CX of the tube portion 91a. The contact pieces 42 extend in the axial direction X of the tube portion 91a and are elastically deformable. The contact pieces 42 electrically connect the male terminal 5 inserted into the spring member 40 to the tube portion 91a. The stability of the contact portion is improved by connecting the male terminal 5 to the tube portion 91a by the plurality of elastically deformable contact pieces 42.

The contact piece 42 in this embodiment is inclined with respect to the tangent direction of a circle centered on the central axis CX of the tubular portion 91a, and has an inner contact portion 42a and an outer contact portion 42b. The outer contact portion 42b contacts the inner peripheral surface of the tubular portion 91a. The inner contact portion 42a is spaced from the inner peripheral surface of the tubular portion 91a, and contacts the male terminal 5. The spring member 40 having this structure can appropriately absorb misalignment between the male terminal 5 and the female terminal 9.

In the mating connector 1 of this embodiment, the first connector 10 having the male terminal 5 is fixed to the wall portion 100, but conversely, the second connector 20 having the female terminal 9 may be fixed to the wall portion 100. Alternatively, neither the first connector 10 nor the second connector 20 may be fixed to the wall portion 100.

The number of male terminals 5 in the first connector 10 and the number of female terminals 9 in the second connector 20 are not limited to the two illustrated. For example, the number of male terminals 5 and female terminals 9 may be three or more.

The spring disposed in the female terminal 9 does not have to be a separate member from the female terminal 9. For example, the spring may be part of the female terminal 9. In this case, a part of the first connection portion 91 may be formed as a spring that absorbs positional misalignment.

The contents disclosed in the above embodiments can be implemented in appropriate combinations.

LIST OF SYMBOLS 1: Mating connector 2: First housing 3: Packing 4: Rear holder 5: Male terminal 6: Second housing 7: Packing 8: Front holder 9: Female terminal 10: First connector 11: First shell 12: Second shell 13: Male screw member 14: Fixing member 16: Bolt 20: Second connector 21: First mating portion 21a: Fixing portion 22: First cylindrical portion 23: Flange portion 24: Recess 40: Spring member 41: Ring portion 42: Contact piece 42a: Inner contact portion 42b: Outer contact portion 51: First connecting portion 52: Second connecting portion 53: Flange portion 54: Cap 61: Main body 62: Second mating portion 63: Insertion portion 64: Cylindrical portion 65: Rear holder 91: First connecting portion, 91a: Cylinder portion, 92: Second connection portion, 93: Flange portion, 100: Wall portion, 110: Wall surface, 200: Device, 300: Electric wire with terminal, 310: Terminal, 320: Electric wire, X: Axial direction, Y: Width direction, Z: Height direction

Claims (4)

a first housing having a first fitting portion;
a male terminal fixed to the first housing so as not to move relative to the first housing;
a second housing having a second fitting portion;
a female terminal fixed to the second housing so as not to move relative to the second housing;
a conductive spring disposed on the female terminal and into which the male terminal is inserted;
Equipped with
the male terminal is inserted into the spring with one of the first and second fitting portions being press-fitted into the other fitting portion. The first housing is integrally formed with the male terminal,
The mating connector according to claim 1 , wherein the second housing is integrally molded with the female terminal. The female terminal has a cylindrical portion that receives the male terminal,
the spring is a spring member accommodated in the cylindrical portion,
the spring member has a plurality of contact pieces arranged in a circumferential direction around a central axis of the cylindrical portion,
The mating connector according to claim 1 or 2, wherein the contact piece extends in an axial direction of the tubular portion, is elastically deformable, and electrically connects the male terminal inserted into the spring member to the tubular portion. the contact piece is inclined with respect to a tangent direction of a circle centered on a central axis of the cylindrical portion, and has an inner contact portion and an outer contact portion;
The outer contact portion contacts an inner circumferential surface of the cylindrical portion,
The mating connector according to claim 3 , wherein the inner contact portion is spaced apart from an inner peripheral surface of the cylindrical portion and contacts the male terminal.

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