Socket and method for manufacturing the socket

Abstract

To provide a socket in which resin does not leak into an internal space even when a housing is formed around a conductor by insert molding, and a method for manufacturing the socket. [Solution] The socket (100) includes a resin housing (10) having a cylindrical body (14), a first conductor (20) arranged on an inner wall surface (14c) of the cylindrical body (14), and an elastically deformable second conductor (30) supported so as to be electrically connectable to the first conductor (20). The side of the first conductor (20) on which the second conductor (30) is supported is not spatially connected to the inner wall surface (14c). When a connection target device (40) is inserted into an internal space (14a) partitioned by the cylindrical body (14), the second conductor (30) elastically deforms, electrically connecting the first conductor (20) to a third conductor (46) arranged on the outer surface of the connection target device (40).

Description

[Technical Field]

[0001] TECHNICAL FIELD The present disclosure relates to sockets and methods for manufacturing sockets. [Background technology]

[0002] Conventionally, a configuration for connecting to a target device such as a camera has been known. Patent Document 1 discloses a camera module including a lens group, an imaging element on which light from the lens group forms an image, a main board on which the imaging element is provided, and a non-conductive exterior case covering the main board. In the camera module described in Patent Document 1, the exterior case is shielded to protect the imaging element and the main board from external noise.

[0003] The exterior case consists of a front case member and a rear case member. A shielding plate is embedded in the front case member by insert molding. Meanwhile, a shielding case is embedded in the rear case member by insert molding. The edge of the shielding plate is bent toward the inside of the front case member and exposed. The edge of the shielding case is bent so as to curve toward the inside of the rear case member and exposed, and these edges form elastically deformable contacts. The front case member and the rear case member are joined by bonding their edges together with an adhesive. At this time, the contacts formed at the edges of the shielding case elastically deform and are electrically connected to the edges of the shielding plate. This protects the imaging element and main board from external noise. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-028430 Summary of the Invention [Problem to be solved by the invention]

[0005] In the camera module of Patent Document 1, contacts are formed at the edge of the shield case, so the shield case with the contacts can be insert-molded to form the rear case. However, if the middle of the shield case is exposed from the rear case to form elastically deformable contacts, a space is required around the contacts to allow elastic deformation. In that case, if the rear case is formed by insert molding, resin may leak through the space into the rear case, preventing elastic deformation, leaving room for improvement.

[0006] Therefore, there is a need for a socket and a method for manufacturing the socket that does not allow resin to leak into the internal space even when the housing is formed around the conductor by insert molding. [Means for solving the problem]

[0007] One embodiment of a socket according to the present disclosure comprises a resin housing having a cylindrical body, a first conductor arranged on the inner wall surface of the cylindrical body, and an elastically deformable second conductor supported so as to be electrically connectable to the first conductor, wherein the side of the first conductor on which the second conductor is supported is not spatially connected to the inner wall surface, and when a device to be connected is inserted into the internal space partitioned by the cylindrical body, the second conductor elastically deforms, thereby electrically connecting the first conductor to a third conductor arranged on the outer surface of the device to be connected.

[0008] According to this embodiment, when the target device is inserted, the second conductor elastically deforms, thereby electrically connecting the first conductor to the third conductor arranged on the outer surface of the target device. This allows the third conductor and the first conductor to be electrically connected via the second conductor even if the first conductor does not have elasticity. Furthermore, the side of the first conductor where the second conductor is supported is not spatially connected to the inner wall surface. Therefore, even if the housing is formed by insert molding, resin will not flow into the side of the first conductor where the second conductor is supported during molding.

[0009] In another embodiment of the socket according to the present disclosure, the first conductor has a cylindrical portion covering the entire circumference of the inner wall surface of the cylindrical body and a plurality of protrusions protruding from the inner surface of the cylindrical portion toward the internal space, the second conductor has a ladder shape including a pair of linear retaining portions and a plurality of elastically deformable contacts spanning between the pair of retaining portions, the second conductor is arranged around the entire circumference of the cylindrical portion, and the first conductor supports the retaining portion of the second conductor with a plurality of the protrusions.

[0010] In this embodiment, the holding portion of the second conductor is supported by the multiple protrusions of the first conductor, and the movement of the second conductor is restricted by the protrusions. Therefore, even if a force from the third conductor acts on the second conductor due to contact with the third conductor when a device to be connected is inserted, the second conductor will not shift relative to the first conductor, and poor contact between the first conductor and the third conductor will not occur.

[0011] In another embodiment of the socket according to the present disclosure, both ends of the pair of holding portions of the second conductor are spaced apart.

[0012] In this embodiment, since the pair of holding portions of the second conductor are spaced apart, the second conductor can be formed into a straight line and then bent. Furthermore, by placing the second conductor in an elastically deformed state on the first conductor, the second conductor can be brought into close contact with the first conductor by its restoring force, and the second conductor can be held by the first conductor.

[0013] One embodiment of the socket manufacturing method according to the present disclosure is a socket manufacturing method as described above, which includes a conductor manufacturing process in which a convex portion is formed by a half-punching method to form the first conductor, and a housing forming process in which the first conductor is placed in a mold, and then molten resin is supplied into the mold to form the housing by insert molding.

[0014] According to this embodiment, in the conductor manufacturing process, the first conductor is formed by forming a convex portion using a half-blanking method, thereby forming a convex portion in which the surface of the first conductor on which the convex portion is formed and the surface opposite the surface on which the convex portion is formed are not spatially connected. Therefore, even if the housing is formed on the opposite side of the surface on which the convex portion is formed by insert molding in the housing forming process, resin does not flow from the convex portion into the surface of the first conductor on which the convex portion is formed during molding. As a result, the electrical connection between the first conductor and the second conductor can be stabilized. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a diagram schematically illustrating a configuration of a camera unit according to the present embodiment. [Figure 2] 3 is a vertical cross-sectional view illustrating a state before the camera module is inserted into the socket according to the first embodiment. FIG. [Figure 3] FIG. 2 is a vertical cross-sectional view showing a state in which the camera module is inserted into a socket. [Figure 4] FIG. 2 is an exploded perspective view of the camera module. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. 10 is a partially enlarged perspective view showing a state in which a shield contact is attached to a socket shield. [Figure 8] FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. 7. [Figure 9] FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 7. [Figure 10] FIG. 10 is a partially enlarged perspective view showing a state in which a shield contact is attached to a socket shield of a socket according to a second embodiment. [Figure 11] FIG. 11 is a cross-sectional view taken along the line XI-XI in FIG. [Figure 12] FIG. 12 is a cross-sectional view taken along the line XII-XII in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of a socket and a method for manufacturing a socket according to the present disclosure will be described in detail with reference to the drawings. Note that the embodiments described below are examples for explaining the socket and the method for manufacturing a socket, and the socket and the method for manufacturing a socket are not limited to these embodiments. Therefore, the socket and the method for manufacturing a socket can be implemented in various forms without departing from the spirit of the present disclosure.

[0017] In this embodiment, the socket 100 is provided in a camera unit U (on-board camera) that is mounted on a vehicle. The camera unit U can also be used for purposes other than on-board use, such as on a bicycle or a drone.

[0018] [Configuration of camera unit] As shown in FIG. 1, the camera unit U is electrically connected via a coaxial cable L to a monitor device (not shown) or an on-board ECU (Electronic Control Unit).

[0019] The coaxial cable L is a communication cable that transmits high-frequency signals. The coaxial cable L is configured by an inner conductor formed of a bundle of copper wires and an outer conductor formed of a mesh-like copper wire surrounding the inner conductor, which are arranged coaxially with a dielectric (insulator) sandwiched between them. The outer conductor functions as a shield to prevent leakage of high-frequency signals and intrusion of external radio waves. The coaxial cable L outputs high-frequency signals output from the camera unit U to a monitor device or an on-board ECU. The coaxial cable L also supplies power from the monitor device to the camera unit U. A plug L1 is connected to the tip of the coaxial cable L, and the coaxial cable L and socket 100 are electrically connected via the plug L1.

[0020] The camera unit U includes a camera case H, a camera module 40 (an example of a device to be connected) housed in the camera case H, and a socket 100 connected to the camera module 40. The camera case H is made of a conductive metal. Note that the orientation in which the camera unit U is used is not particularly limited, but in the following description, the direction in which the socket 100 is viewed from the camera module 40 is referred to as the X1 direction, the opposite direction as the X2 direction, and the direction connecting the X1 direction and the X2 direction as the axial direction X.

[0021] [Camera module configuration] As shown in FIGS. 2 to 4 , the camera module 40 includes an optical system 41, a substrate 44, a camera shield 46 (an example of a third conductor), and a receptacle 47. The optical system 41 includes at least one lens into which light from a subject is incident. The optical system 41 and an imaging element 42, such as a charge-coupled device (CCD) or a complementary metal oxide semiconductor (CMOS), are mounted on the X2 side of the substrate 44. An electronic circuit is mounted on the substrate 44 to drive and control the imaging element 42 and process the electrical signal output from the imaging element 42. The substrate 44 has a rectangular shape when viewed in the axial direction X (hereinafter also referred to as a plan view). A receptacle 47 is mounted on the surface of the substrate 44 opposite to the surface on which the imaging element 42 is mounted. The electrical signal output from the imaging element 42 is processed by the electronic circuit on the substrate 44, converted into a high-frequency signal, and output from the receptacle 47. The substrate 44 is fixed with screws 43a to a plurality of (four in this embodiment) bosses 43 formed on the rear surface of the optical system 41 in the X1 direction. A plurality of (four in this embodiment) through-holes through which the screws 43a are inserted are formed in the substrate 44. In this way, the substrate 44 is supported by the optical system 41.

[0022] The camera shield 46 has a rectangular cylindrical shape and is made of metal such as iron. Two contact pieces 46a bent inward are disposed near two diagonal corners of the camera shield 46. The contact pieces 46a are formed by bending a portion of one surface of the camera shield 46.

[0023] The optical system 41, the imaging element 42, the substrate 44, and the receptacle 47 are integrated. The substrate 44 is fixed to a plurality of bosses 43 formed on the optical system 41 with screws 43a. As a result, the imaging element 42, the substrate 44, and a portion of the receptacle 47 are disposed in the space inside the camera shield 46. In other words, the camera shield 46 is disposed on the outer surface of the camera module 40.

[0024] The receptacle 47 includes a first contact 47a, a ground contact 47b, and an insulator 47c. The first contact 47a transmits high-frequency signals. The ground wiring is a wiring at ground potential. When the ground wiring of the substrate 44 comes into contact with and is electrically connected to the contact piece 46a of the camera shield 46, the ground wiring of the substrate 44 and the ground contact 47b are electrically connected to the camera shield 46, and all of these are at ground potential. The insulator 47c electrically insulates the first contact 47a from the ground contact 47b.

[0025] [Socket configuration] [First embodiment] Next, the configuration of a socket 100 according to a first embodiment will be described with reference to FIGS. 2, 3, and 5 to 9. The socket 100 includes a housing 10, a socket shield 20 (an example of a first conductor), shield contacts 30 (an example of a second conductor), and a connector 60. The housing 10 is made of an insulating material such as resin and includes a cylindrical body 14 and a mating portion 16 extending from the cylindrical body 14 in the X1 direction. The cylindrical body 14 has a rectangular cylindrical shape in a plan view. Hereinafter, an axis passing through the intersection of the diagonals of the rectangle of the cylindrical body 14 in a plan view and parallel to the axial direction X will be referred to as the central axis Y. The end of the cylindrical body 14 in the X2 direction will be referred to as the opening 14b, and the space connected to the opening 14b and defined by the cylindrical body 14 will be referred to as the internal space 14a. Furthermore, the surface of the wall constituting the cylindrical body 14 that faces the internal space 14a will be referred to as the inner wall surface 14c.

[0026] 2 and 3, camera module 40 is configured to be insertable into internal space 14a from opening 14b with camera shield 46 facing cylindrical body 14. That is, when camera module 40 is inserted into cylindrical body 14 of housing 10, camera shield 46 and inner wall surface 14c face each other with socket shield 20, which will be described later, sandwiched therebetween.

[0027] The end of the cylindrical body 14 of the housing 10 in the X1 direction is a first bottom 14d, and a recess 14e that is recessed in a circular shape in a plan view from the first bottom 14d toward the X1 direction is formed in the center of the first bottom 14d. A first through-hole 14g is formed in the center of a second bottom 14f, which is the bottom of the recess 14e. A connector 60 is disposed in the second bottom 14f, passing through the first through-hole 14g. The connector 60 is disposed coaxially with the central axis Y, extending from the internal space 14a of the cylindrical body 14 to the fitting portion 16. The configuration of the connector 60 will be described later.

[0028] The socket shield 20 is a plate-like component made of metal such as iron. The socket shield 20 is formed by pressing a metal plate. The socket shield 20 has a cylindrical plate portion 22 (an example of a cylindrical portion) that is rectangular in plan view, a bottom plate portion 24 formed at the end of the cylindrical plate portion 22 in the X1 direction, and a recessed plate portion 26 recessed from the center of the bottom plate portion 24 in the X1 direction.

[0029] On each of the four inner plate surfaces 22a (an example of an inner surface) that are the inner surfaces of the cylindrical plate portion 22, multiple sets (two sets in this embodiment) of protruding portions 22b are arranged to protrude toward the inside of the cylindrical plate portion 22, i.e., toward the internal space 14a. That is, a total of eight sets of protruding portions 22b are arranged on the four inner plate surfaces 22a. In this embodiment, one set of protruding portions 22b includes one first protruding portion 22c and one second protruding portion 22f that is arranged on the X1 direction side of the first protruding portion 22c. Hereinafter, in this embodiment, the first protruding portion 22c and the second protruding portion 22f will be collectively referred to as protruding portions 22b.

[0030] The two first protrusions 22c and the two second protrusions 22f constituting the two sets of protrusions 22b arranged on one inner plate surface 22a are spaced apart and positioned so as not to overlap in a plan view. Specifically, the two second protrusions 22f are arranged closer to the center of the inner plate surface 22a, and the two first protrusions 22c are arranged further outward from the inner plate surface 22a than the two second protrusions 22f. Furthermore, when viewed along a direction perpendicular to the inner plate surface 22a, the two first protrusions 22c are arranged to have the same height in the axial direction X, and the two second protrusions 22f are arranged to have the same height in the axial direction X.

[0031] The first protrusion 22c has a triangular prism shape with a right-angled triangle at its bottom. Of the three side surfaces of the first protrusion 22c, an inclined surface 22d, which corresponds to the hypotenuse of the right-angled triangle at the bottom, protrudes away from the inner plate surface 22a in the X1 direction. Furthermore, a first vertical surface 22e, which corresponds to one of the two sides of the right angle of the right-angled triangle at the bottom, protrudes in a direction perpendicular to the inner plate surface 22a.

[0032] The second protrusion 22f has a quadrangular prism shape. The second protrusion 22f has a second vertical surface 22g that is parallel to the first vertical surface 22e of the first protrusion 22c and faces the first vertical surface 22e.

[0033] The first vertical surface 22e of the first protrusion 22c and the second vertical surface 22g of the second protrusion 22f are substantially bent relative to the inner plate surface 22a of the cylindrical plate 22, and the radius of the corners R of the bent portions is extremely small (see FIG. 9).

[0034] The protrusion 22b is formed by processing a metal plate using a press machine using a half-punching method. The half-punching method is a method in which the punch of the press machine is pressed, for example, only about half the thickness of the metal plate, to form a protrusion on the side opposite the punch without punching the metal plate. By processing the protrusion 22b using the half-punching method, the protrusion 22b can be protruded while all surfaces constituting the protrusion 22b remain connected to the inner plate surface 22a of the cylindrical plate portion 22 (see FIG. 8). In other words, with the protrusion 22b formed, the internal space 14a inside the cylindrical plate portion 22 is not connected to the cylindrical body 14 of the housing 10, and the internal space 14a and the cylindrical body 14 are separated by the cylindrical plate portion 22. Furthermore, with the half-punching method, the shape of the punch is accurately reflected in the shape of the protrusion.

[0035] The recessed plate portion 26 has a circular shape in a plan view and includes a side plate 26a and a bottom plate 26b. The side plate 26a is a truncated conical cylinder whose diameter decreases in the X1 direction, and is disposed between the bottom plate portion 24 and the bottom plate 26b. The side plate 26a is formed with a plurality of (eight in this embodiment) second through holes 26c, which are circular holes, equally spaced around the central axis Y in the circumferential direction.

[0036] The bottom plate 26b has a circular plate shape. A third through-hole 26e, which is a circular hole, is disposed on the radially inner side of the bottom plate 26b. A connector 60 is disposed to pass through the third through-hole 26e.

[0037] The surface of the cylindrical plate portion 22 of the socket shield 20 opposite the inner plate surface 22a is in close contact with the inner wall surface 14c of the cylindrical body 14 of the housing 10 (see FIGS. 8 and 9), and the surface of the bottom plate portion 24 opposite the surface facing the internal space 14a is in close contact with the first bottom portion 14d of the housing 10. That is, the surfaces of the cylindrical plate portion 22 and the bottom plate portion 24 of the socket shield 20 that face the internal space 14a are exposed. Meanwhile, the recessed plate portion 26 of the socket shield 20 is embedded inside the housing 10. At this time, the second through-hole 26c is filled with the resin of the housing 10, thereby tightly fixing the socket shield 20 to the housing 10. The third through-hole 26e is exposed and not covered by the housing 10.

[0038] The shield contact 30 is made of a resilient, conductive metal such as spring stainless steel. The shield contact 30 has a ladder shape including a pair of retaining portions 32 and a plurality of (35 in this embodiment) second contacts 34 (an example of a contact) spanning the pair of retaining portions 32. The shield contact 30 is formed by bending a linear ladder-shaped piece at four locations. The retaining portion 32 of the pair of retaining portions 32, which is positioned on the X1-direction side, is sandwiched between the first vertical surface 22e of the first protrusion 22c and the second vertical surface 22g of the second protrusion 22f of the socket shield 20. The shield contact 30 is in contact with the four inner plate surfaces 22a of the cylindrical plate portion 22 and is supported by the first protrusion 22c and the second protrusion 22f. In other words, the shield contact 30 has a substantially rectangular shape in a plan view when supported by the socket shield 20. At this time, one second contact 34 is arranged between one first protrusion 22c and one second protrusion 22f that make up one set of protrusions 22b (see FIGS. 2 and 7). In this embodiment, among the multiple second contacts 34 of the shield contact 30, adjacent second contacts 34 are spaced apart by a predetermined distance P (see FIG. 8). The predetermined distance P is set according to requirements for the socket 100, such as the frequency of the transmitted high-frequency signal and the holding force of the socket 100 to hold the camera module 40.

[0039] When the shield contact 30 is disposed in the cylindrical plate portion 22, the second contacts 34 are curved to protrude toward the internal space 14a (see also FIG. 7). Furthermore, at the intersections of the pair of holding portions 32 and the plurality of second contacts 34, third contacts 36 are formed that protrude in the opposite direction to the protruding direction of the second contacts 34, i.e., toward the cylindrical plate portion 22. Therefore, the pair of holding portions 32 do not contact the four inner plate surfaces 22a of the cylindrical plate portion 22, but the third contacts 36 do contact the inner plate surfaces 22a. In this embodiment, the shield contact 30 has 70 third contacts 36.

[0040] 2, when the shield contact 30 is disposed in the cylindrical plate portion 22, both ends of the pair of holding portions 32, 32 of the shield contact 30 in the extending direction are positioned between two sets of protrusions 22b formed on one inner plate surface 22a and are spaced apart from each other. In addition, in this state, one second contact 34 is disposed between one first protrusion 22c and one second protrusion 22f that constitute one set of protrusions 22b. In other words, when the shield contact 30 is disposed in the cylindrical plate portion 22, the protrusions 22b and the second contact 34 are disposed so as not to interfere with each other.

[0041] Before the shield contact 30 is supported by the cylindrical plate portion 22 in a state in which it is bent at four locations from a straight ladder shape, the angle θ (see FIGS. 5 and 6) of the two corners located farthest from the ends of the pair of holding portions 32, 32 in the extension direction is an obtuse angle. Because the ends of the pair of holding portions 32, 32 in the extension direction are spaced apart from each other, when the shield contact 30 is attached to the cylindrical plate portion 22, it can be attached after elastically deforming the shield contact 30 so that the angle θ becomes 90 degrees. As a result, the shield contact 30 is not only supported by the protrusions 22b with respect to the socket shield 20, but is also held in place by the restoring force of the shield contact 30, which tightly contacts the cylindrical plate portion 22 of the socket shield 20.

[0042] As shown in FIGS. 5 and 6 , the connector 60 includes a signal terminal 61, a holder 62, an outer conductor 63, a bushing 64, and a connecting member 65. The signal terminal 61 is made of a conductive metal or the like and has a rod shape arranged along the axial direction X so as to be coaxial with the central axis Y. One end of the signal terminal 61 is a first contact end 61a electrically connectable to the first contact 47a of the receptacle 47 of the camera module 40, and the other end is a second contact end 61b electrically connectable to the inner conductor of the coaxial cable L via the plug L1. The holder 62 is made of resin and arranged on the outer peripheral surface of the signal terminal 61 in the middle of the axial direction X. The holder 62 is formed integrally with the signal terminal 61 by insert molding. The bushing 64 is made of an elastic material such as rubber and has a through-hole formed in its center along the axial direction X, through which the signal terminal 61 can be inserted. The bushing 64 can prevent moisture from entering the signal terminal 61 from the second contact end 61b side.

[0043] The outer conductor 63 is made of a conductive metal and includes a substantially cylindrical conductor body 63a and an annular plate-shaped flange portion 63b extending radially outward from the conductor body 63a relative to the central axis Y. As shown in FIGS. 2 and 3 , a plate-shaped third support portion 63c having a central hole through which the signal terminal 61 can be inserted is formed in the space inside the conductor body 63a. A bushing 64 is disposed on the X2-direction side of the third support portion 63c so as to be in contact with the third support portion 63c, and a holder 62 is disposed on the X2-direction side of the bushing 64. The outer diameter of the holder 62 is slightly larger than that of the bushing 64, and a step corresponding to the difference in outer diameter is formed in the conductor body 63a of the outer conductor 63 between the portion where the bushing 64 is disposed and the portion where the holder 62 is disposed. The holder 62 is supported by the step, and no pressure from the holder 62 acts on the bushing 64. The second contact end 61b of the signal terminal 61 is exposed on the X1 direction side of the third support portion 63c. The tip of the conductor body 63a is located within the fitting portion 16 of the housing .

[0044] An annular groove 63d connected to the outer periphery of the conductor body 63a is formed on the surface of the flange portion 63b facing in the X2 direction. A first connecting portion 65b of the connecting member 65, which will be described later, comes into contact with the annular groove 63d. The outer edge of the X1 direction surface of the flange portion 63b comes into contact with the X2 direction surface of the bottom plate 26b of the recessed plate portion 26 of the socket shield 20, and the outer conductor 63 is electrically connected to the socket shield 20. The contact point between the flange portion 63b and the bottom plate 26b and its surroundings are embedded inside the housing 10. As a result, the outer conductor 63 is tightly fixed to the housing 10 and the socket shield 20.

[0045] The connecting member 65 is made of an elastic, conductive metal and includes an annular portion 65a, a first connecting portion 65b, and a second connecting portion 65c. The first connecting portions 65b are provided at equal intervals along the circumferential direction on the end portion of the annular portion 65a in the X1 direction (the side where the external conductor 63 is disposed), with a plurality (eight in this embodiment). The second connecting portions 65c are provided at equal intervals along the circumferential direction on the end portion of the annular portion 65a in the X2 direction (the side facing the internal space 14a). The first connecting portions 65b face the second connecting portions 65c across the annular portion 65a. Each of the first connecting portions 65b is disposed at a position overlapping with a corresponding one of the second connecting portions 65c in a plan view.

[0046] The annular portion 65a has a plate surface formed parallel to the axial direction X and is in close contact with the outer peripheral surface of the conductor body 63a. This fixes the connecting member 65 to the outer conductor 63 and electrically connects the connecting member 65 to the outer conductor 63. Each of the multiple first connecting portions 65b extends perpendicular to the annular portion 65a and in a direction radially outward from the central axis Y, and is arranged at equal intervals along the circumferential direction. The multiple first connecting portions 65b enter the annular groove 63d in the flange portion 63b of the outer conductor 63 and elastically deform to contact the bottom of the annular groove 63d, and are electrically connected to the outer conductor 63.

[0047] Each of the multiple second connection portions 65c is a plate-like member and extends along the axial direction X from the X2-direction end of the annular portion 65a. Specifically, the second connection portions 65c are curved in a wavy manner along the axial direction X, bulging radially outward from the annular portion 65a, then bulging radially inward, and finally bulging radially outward again. The fourth contact 65d is located radially inside the portion where the second connection portions 65c bulge radially outward again.

[0048] [Inserting the camera module into the socket] Next, the insertion of the camera module 40 into the socket 100 will be described. As shown in Fig. 2, the receptacle 47 of the camera module 40 and the connection member 65 of the connector 60 of the socket 100 are brought into opposition. Then, when the camera module 40 is inserted from this state into the internal space 14a of the cylindrical body 14 of the socket 100, the camera shield 46 of the camera module 40 first comes into contact with the second contact 34 of the shield contact 30. As described above, the ground wiring of the substrate 44 of the camera module 40 and the ground contact 47b are at the same potential as the camera shield 46.

[0049] When the camera shield 46 and the second contact 34 come into contact, the second contact 34 receives a pressing force from the camera shield 46 and elastically deforms. This pressing force received by the second contact 34 causes the third contact 36 of the shield contact 30 to press against the socket shield 20. As a result, the camera shield 46 is electrically connected to the socket shield 20 via the shield contact 30, so that the socket shield 20 is at ground potential. At this time, the bottom plate 26b of the recessed plate portion 26 of the socket shield 20 is electrically connected to the flange portion 63b of the outer conductor 63 of the connector 60, so that the outer conductor 63 also simultaneously becomes at ground potential.

[0050] When the second contact 34 elastically deforms, the pair of holding portions 32, 32 move in opposite directions along the axial direction X, widening the gap between them, but because the holding portion 32 on the X1 side is sandwiched between the first protrusion 22c and the second protrusion 22f of the socket shield 20, the shield contact 30 can only move within the range of the gap in the X direction when it is sandwiched between the protrusions 22b (first protrusion 22c and second protrusion 22f). Therefore, when the camera module 40 is inserted, the shield contact 30 will not shift relative to the socket shield 20 even if a force is applied from the camera shield 46 due to contact with the camera shield 46.

[0051] In this embodiment, the camera shield 46 and the second contact 34 of the shield contact 30 are in point contact, and the third contact 36 and the socket shield 20 are also in point contact. By making the contact points point contact in this way, the contact pressure can be increased. This allows for a more stable contact state to be achieved compared to surface contact, even with the same contact force.

[0052] As the camera module 40 is further inserted into the internal space 14a of the cylindrical body 14 of the socket 100, the ground contact 47b of the receptacle 47 of the camera module 40 comes into contact with the fourth contact 65d of the connection member 65 of the connector 60 of the socket 100. When the ground contact 47b comes into contact with the fourth contact 65d, the fourth contact 65d receives a pressing force from the ground contact 47b and elastically deforms radially outward with respect to the central axis Y. As a result, the ground contact 47b and the fourth contact 65d are electrically connected, and the fourth contact 65d becomes at ground potential.

[0053] As described above, camera shield 46, socket shield 20, and outer conductor 63 are already at ground potential. Furthermore, ground contact 47b of receptacle 47 is at the same potential as camera shield 46, and connecting member 65 having fourth contact 65d is electrically connected to outer conductor 63, so ground contact 47b and fourth contact 65d are already at ground potential before they come into contact. In this way, by providing two contact points, ground potential can be reliably maintained even if poor contact occurs at one of the contact points.

[0054] As the camera module 40 is further inserted into the internal space 14a of the cylindrical body 14 of the socket 100, the first contact 47a of the receptacle 47 of the camera module 40 comes into contact with the first contact end 61a of the signal terminal 61 of the connector 60 of the socket 100. This makes it possible to output a high-frequency signal from the camera module 40 to the socket 100 and further to the coaxial cable L connected to the socket 100.

[0055] In this embodiment, the camera module 40 and socket 100 are first brought into contact at the ground potential point and then at the point transmitting the high-frequency signal, thereby ensuring shielding and allowing the high-frequency signal to be transmitted while being protected from external noise.

[0056] [Socket manufacturing method] Next, a method for manufacturing the socket 100 will be described. First, the socket shield 20, shield contact 30, and connection member 65 are each formed using a press. When forming the protrusion 22b on the cylindrical plate portion 22 of the socket shield 20, a half-blanking method is used (conductor manufacturing process). After forming the signal terminal 61 by cutting or the like, the holder 62 is integrated by insert molding. The outer conductor 63 is formed by cutting.

[0057] Next, the socket shield 20 and the external conductor 63 are placed in a mold for resin-molding the housing 10 so that the bottom plate 26b of the socket shield 20 and the flange portion 63b of the external conductor 63 are in contact with each other. Then, molten thermoplastic resin is supplied to the mold and hardened to form the housing 10 (housing formation process). As a result, the bottom plate 26b and the flange portion 63b are fixed in contact with each other, and the resin adheres to the outside of the socket shield 20, thereby closely and integrally bonding the socket shield 20 and the housing 10. At this time, the second through-hole 26c of the recessed plate portion 26 of the socket shield 20 is filled with resin, thereby integrally bonding the socket shield 20 and the external conductor 63 with the housing 10. Specifically, the plate surface and side surface opposite to the inner plate surface 22a of the cylindrical plate portion 22 of the socket shield 20 and the surface opposite to the surface facing the internal space 14a of the bottom plate portion 24 are covered with resin.

[0058] As described above, the convex portion 22b of the socket shield 20 is formed by the half-blanking method, so that in the housing formation process, resin does not flow into the internal space 14a from the location of the convex portion 22b. On the other hand, since molten resin flows into the recessed plate portion 26 of the socket shield 20 from the second through-hole 26c, both sides of the plate surface of the recessed plate portion 26 are covered with resin, and the recessed plate portion 26 is buried in resin.

[0059] Next, the bushing 64, the signal terminal 61 integrated with the holder 62, and the connecting member 65 are attached to the X2-direction side of the third support portion 63c of the outer conductor 63. Finally, the shield contact 30 is fitted onto the inner plate surface 22a of the cylindrical plate portion 22 of the socket shield 20. At this time, the holding portion 32 on the X1-direction side of the shield contact 30 elastically deforms inward (toward the internal space 14a) while sliding on the inclined surface 22d of the first protrusion 22c. After climbing over the inclined surface 22d, the holding portion 32 returns to its original shape due to its restoring force and is supported by the socket shield 20 between the first vertical surface 22e of the first protrusion 22c and the second vertical surface 22g of the second protrusion 22f. In this way, the inclined surface 22d of the first protrusion 22c of the socket shield 20 allows the shield contact 30 to be attached to the cylindrical plate portion 22 of the socket shield 20 with little force. This completes the socket 100.

[0060] Second Embodiment Next, the configuration of a socket 100 according to a second embodiment will be described with reference to Figures 10 to 12. This embodiment differs from the first embodiment in the shape of the protrusion 22b of the socket shield 20 of the socket 100. The other configuration is the same as that of the first embodiment, so detailed description will be omitted.

[0061] In this embodiment, a plurality of (two in this embodiment) protrusions 22b protrude from each of the four inner plate surfaces 22a, which are the inner surfaces of the cylindrical plate portion 22, toward the inside of the cylindrical plate portion 22, i.e., toward the internal space 14a. All (eight) protrusions 22b arranged on the four inner plate surfaces 22a are formed on the same plane perpendicular to the axial direction X and near the center of the inner plate surfaces 22a in the axial direction X. Each protrusion 22b has a pair of vertical surfaces 22i, which are planes perpendicular to the axial direction X, and a curved surface 22j, which is a curved surface, arranged between the pair of vertical surfaces 22i. Each vertical surface 22i and the inner plate surface 22a of the cylindrical plate portion 22 are substantially bent, and the radius R of the corners of the bent portions is extremely small (see FIG. 12).

[0062] The protrusions 22b of this embodiment are also formed by half-punching. This allows the protrusions 22b to protrude while maintaining the vertical surfaces 22i of the protrusions 22b connected to the inner surface 22a of the cylindrical plate 22 (see FIG. 11). In other words, with the protrusions 22b formed, the internal space 14a inside the cylindrical plate 22 is not connected to the cylindrical body 14 of the housing 10, and the internal space 14a and the cylindrical body 14 are separated by the cylindrical plate 22.

[0063] In this embodiment, the shield contact 30 is positioned such that the protrusions 22b of the socket shield 20 are located between a pair of holding portions 32. That is, the shield contact 30 sandwiches the eight protrusions 22b of the cylindrical plate portion 22 of the socket shield 20 between the pair of holding portions 32. The shield contact 30 is positioned so that it contacts the four inner plate surfaces 22a of the cylindrical plate portion 22 and is supported by the protrusions 22b. The shield contact 30 of this embodiment is positioned closer to the X1 direction than the shield contact 30 of the first embodiment. Therefore, in the socket 100 of this embodiment, the effective mating length when the camera module 40 is inserted into the cylindrical body 14 of the housing 10 is shorter than that of the socket 100 of the first embodiment. However, this is not a problem as long as the effective mating length required for the camera unit U is ensured.

[0064] Other Embodiments (1) In each of the above embodiments, eight protrusions 22b are provided, but the number may be seven or less or nine or more as long as the shield contact 30 can be stably held.

[0065] (2) In the first embodiment described above, one set of convex portions 22b is composed of one first convex portion 22c and one second convex portion 22f, but one set of convex portions 22b may be composed of three or more convex portions.

[0066] (3) In the first embodiment, the holding portion 32 on the X1 direction side of the pair of holding portions 32, 32 is sandwiched between the protrusions 22b (first protrusion 22c and second protrusion 22f), but the holding portion 32 on the X2 direction side may be sandwiched between the protrusions 22b. Also, both of the pair of holding portions 32, 32 may be sandwiched between the protrusions 22b.

[0067] (4) In the above embodiments, when the shield contact 30 is placed in the cylindrical plate portion 22, both ends of the pair of holding portions 32, 32 of the shield contact 30 in the extension direction are spaced apart from each other. However, this is not limited to this. When the shield contact 30 is placed in the cylindrical plate portion 22, both ends of the pair of holding portions 32, 32 of the shield contact 30 in the extension direction may be in contact with each other. By having both ends of the pair of holding portions 32, 32 in the extension direction in contact with each other, the shielding performance can be further improved.

[0068] (5) In the above embodiments, the socket 100 is applied to the camera unit U, but it can be used for transmitting high-frequency signals for devices other than the camera unit U.

[0069] (6) In the above embodiment, the socket shield 20 is provided to provide a shielding function, but it does not have to have a shielding function. [Industrial Applicability]

[0070] The present disclosure is applicable to sockets and methods of manufacturing sockets. [Explanation of symbols]

[0071] 10: Housing 14: Cylindrical body 14a: Internal space 14c: Inner wall surface 20: Socket shield (first conductor) 22: Cylindrical plate portion (cylindrical portion) 22a: Inner plate surface (inner surface) 22b: Convex part 30: Shield contact (second conductor) 32: Holding part 34: Second Contact (Contact) 40: Camera module (connectable device) 46: Camera shield (third conductor)

Claims

1. a resin housing having a cylindrical body; a first conductor disposed on an inner wall surface of the cylindrical body; a second conductor that is elastically deformable and supported so as to be electrically connectable to the first conductor; a side of the first conductor on which the second conductor is supported is not spatially connected to the inner wall surface; When a device to be connected is inserted into the internal space partitioned by the cylindrical body, the second conductor elastically deforms, thereby electrically connecting the first conductor to a third conductor arranged on the outer surface of the device to be connected.

2. the first conductor has a cylindrical portion covering the entire periphery of the inner wall surface of the cylindrical body, and a plurality of protrusions protruding from the inner surface of the cylindrical portion toward the internal space, the second conductor has a ladder shape including a pair of linear holding portions and a plurality of elastically deformable contacts spanning the pair of holding portions, the second conductor is disposed around the entire circumference of the cylindrical portion, The socket according to claim 1 , wherein the first conductor supports the holding portion of the second conductor with a plurality of the protrusions.

3. 3. The socket according to claim 2, wherein both ends of the pair of holding portions of the second conductor are spaced apart.

4. A method for manufacturing the socket according to any one of claims 1 to 3, comprising the steps of: a conductor manufacturing process in which a convex portion is formed by a half-blanking method to form the first conductor; a housing forming step of placing the first conductor in a mold and then supplying molten resin into the mold to form the housing by insert molding.

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