Switch-equipped coaxial connector, and coaxial connector set provided with said switch-equipped coaxial connector

Abstract

A switch-equipped coaxial connector according to the present invention comprises: an electrically conductive internal terminal; an electrically insulating holder that holds the internal terminal; an electrically conductive external terminal that covers the holder; and a coaxial center that is the center of the internal terminal and the external terminal. The external terminal has a terminal upper surface portion extending in a planar shape, and a terminal protruding portion arranged on an outer periphery of the terminal upper surface portion and protruding outward. The terminal protruding portion has a protruding end shaped so as to be able to come into contact with a circumference centered on the coaxial center in a top view.

Description

Coaxial connector with switch and coaxial connector set including said coaxial connector with switch

[0001] The present invention relates to a coaxial connector with a switch and a coaxial connector set including the coaxial connector with a switch.

[0002] For example, Patent Document 1 discloses a coaxial connector with a switch, which comprises an electrically conductive internal terminal, an electrically insulating holder, and an electrically conductive external terminal, the external terminal having a cylindrical portion configured to be connectable to the outer conductor of a mating coaxial connector.

[0003] JP 2014-154347 A

[0004] The cylindrical portion of the external terminal disclosed in Patent Document 1 protrudes upward from the upper surface of the external terminal and has an annular groove-shaped engaging portion for engaging with the outer conductor of the mating coaxial connector. Such an engaging cylindrical portion hinders the miniaturization and low-profile of the coaxial connector with a switch.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a coaxial connector with a switch that allows for miniaturization and a low profile, and a coaxial connector set that includes the coaxial connector with a switch.

[0006] In order to solve the above problems, one embodiment of the coaxial connector with a switch of the present invention is a coaxial connector with a switch comprising: a conductive internal terminal; an electrically insulating holder that holds the internal terminal; a conductive external terminal that covers the holder; and a coaxial center that is the center of the coaxial connection between the internal terminal and the external terminal; wherein the external terminal has a terminal upper surface portion that extends in a planar shape, and a terminal protrusion portion that protrudes outward is disposed on the outer periphery of the terminal upper surface portion, and the terminal protrusion portion has a protrusion end shaped so that it can come into contact with a circumference centered on the coaxial center when viewed from above.

[0007] According to this invention, the terminal protrusion formed on the upper surface of the external terminal functions as an engaging portion for engaging with the outer conductor of the mating coaxial connector, eliminating the need for the conventional cylindrical engaging portion and making it possible to make the coaxial connector with a switch smaller and thinner.

[0008] 1. A perspective view of a coaxial connector with a switch according to an embodiment. A top view of the coaxial connector with a switch shown in FIG. 1. A perspective view of an external terminal constituting the coaxial connector with a switch shown in FIG. 1. A top view of the external terminal shown in FIG. 3. A perspective view of the external terminal shown in FIG. 3, seen from the bottom side. A perspective view of a holder constituting the coaxial connector with a switch shown in FIG. 1. A top view of the holder shown in FIG. 6. A view illustrating a state before the coaxial connector set according to the embodiment is engaged. A view illustrating the engaged state of the coaxial connector set. A view illustrating main parts in the fitted state shown in FIG. 9. A top view of an enlarged terminal protrusion shown in FIG. 2. A top view of an enlarged terminal protrusion according to Modification 1. A top view of an enlarged terminal protrusion according to Modification 2. A top view of an enlarged terminal protrusion according to Modification 3. A top view schematically showing a coaxial connector with a switch according to an embodiment. A top view schematically showing a coaxial connector with a switch according to Modification 4. A top view schematically showing a coaxial connector with a switch according to Modification 5. A top view schematically showing a coaxial connector with a switch according to Modification 6. Fig. 10 is a top view schematically showing a coaxial connector with a switch according to Modification 7. Fig. 11 is a top view schematically showing a coaxial connector with a switch according to Modification 8. Fig. 12 is a top view schematically showing a coaxial connector with a switch according to Modification 9.

[0009] Hereinafter, with reference to the drawings, an embodiment of a coaxial connector with a switch 2 according to the present invention and a coaxial connector set 1 including the coaxial connector with a switch 2 will be described. For convenience, each figure shows an X-axis, a Y-axis, and a Z-axis that are orthogonal to each other. In this specification, the length, width, and height directions of the coaxial connector with a switch 2 are defined by the X-axis, the Y-axis, and the Z-axis, respectively.

[0010] [Coaxial Connector with Switch] A coaxial connector with switch 2 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 11 and 15. FIG.

[0011] As shown in FIGS. 8 to 10, the coaxial connector 2 with a switch has an engaging function with a mating coaxial connector 3 having an engaging protrusion 8 formed on the inner peripheral surface 7a of the outer conductor 7.

[0012] As shown in Figures 1 and 2, the coaxial connector with switch 2 comprises an electrically conductive internal terminal 10, an electrically insulating holder 20 that holds the internal terminal 10, an electrically conductive external terminal 30 that covers the holder 20, and a coaxial center C that is the center of the coaxial relationship between the internal terminal 10 and the external terminal 30.

[0013] The internal terminal 10 includes a fixed terminal 13 and a movable terminal 12 configured to be movable toward and away from the fixed terminal 13. The movable terminal 12 and the fixed terminal 13 are formed by bending a thin conductive metal plate, and may be made of, for example, stainless steel (SUS: Steel Use Stainless Steel). Stainless steel is a material that is both conductive and elastically deformable. The surfaces of the movable terminal 12 and the fixed terminal 13 may be gold-plated, for example. The movable terminal 12 of the internal terminal 10 has a portion corresponding to the coaxial center C, which is the center of the coaxial cable.

[0014] 6 and 7, the holder 20 has a square shape extending in the length direction (X-axis direction) and width direction (Y-axis direction) when viewed from above, which allows for a balanced engagement in terms of ease of manufacture and engagement stability.

[0015] For example, an electrically insulating resin such as a liquid crystal polymer is used as the holder 20. The holder 20 has a first holder 21 and a second holder 23. The movable terminal 12 and the fixed terminal 13 are sandwiched and held between the first holder 21 and the second holder 23 in the height direction (Z-axis direction).

[0016] The first holding body 21 has a first upper surface 22 extending in the length direction (X-axis direction) and width direction (Y-axis direction), a cone-shaped inclined guide 27, and a guide hole 28 penetrating in the height direction (Z-axis direction). The guide hole 28 is a hole for inserting the center conductor of the mating coaxial connector 3, which will be described later.

[0017] The first holding body 21 has a corner portion 29 at each of its four corners, i.e., four corner portions 29. Notches in the corner portions 29 form body cutouts 26. The body cutouts 26 are defined by cutout surfaces 24 extending in the length direction (X-axis direction) and width direction (Y-axis direction) and cutout side surfaces 25 extending in the height direction (Z-axis direction). This makes it easy to adjust the projection height and projection width of the terminal projection portion 34.

[0018] The cutout side surface 25 and the first upper surface 22 form a step. The cutout side surface 25 has, for example, an arc shape centered on the coaxial center C. The coaxial center C is the center of the coaxial members in the switch-equipped coaxial connector 2 and the mating coaxial connector 3 that are electrically connected.

[0019] As shown in Figures 1 to 5, the external terminal 30 is configured to cover the surface of the holding body 20, and as shown in Figure 2, when viewed from above, has a rectangular shape extending in the length direction (X-axis direction) and width direction (Y-axis direction), for example, a square shape.

[0020] The external terminal 30 is made of a thin metal plate and, when connected to ground potential, shields against external electromagnetic waves and unwanted radiation from the movable terminal 12 and the fixed terminal 13, thereby forming an electromagnetic wave-shielding space within the external terminal 30. In other words, the external terminal 30 is a member for electromagnetically shielding the movable terminal 12 and the fixed terminal 13, which are the internal terminals 10. The external terminal 30 may be made of, for example, stainless steel (SUS: Steel Use Stainless Steel). Stainless steel is a material that is both conductive and elastically deformable. The surface of the external terminal 30 may be gold-plated, for example. The external terminal 30 is formed, for example, by bending. The external terminal 30 has a coaxial center C, which is the center of the coaxial cable.

[0021] 3 and 4 , the external terminal 30 has, for example, a terminal upper surface portion 31, a terminal side portion 32 that is bent and connected to the terminal upper surface portion 31, and a terminal lower portion 33 that is bent and connected to the terminal side portion 32. As a result, the holding body 20 can be clamped between the terminal upper surface portion 31, the terminal side portion 32, and the terminal lower portion 33 and crimped, thereby integrally fixing the holding body 20 and the external terminal 30.

[0022] The terminal upper surface portion 31 extends in a planar shape in the length direction (X-axis direction) and width direction (Y-axis direction). The terminal side portion 32 extends in the length direction (X-axis direction) and height direction (Z-axis direction). The terminal lower portion 33 extends in the length direction (X-axis direction) and width direction (Y-axis direction). The terminal lower portion 33 is used as an external mounting portion.

[0023] Terminal upper surface portion 31 has an opening 38 corresponding to guide 27 of holder 20. Guide 27 is located below terminal upper surface portion 31, and at least a portion of guide 27 is exposed from opening 38 when viewed from above. This eliminates the need for a conventional engaging cylindrical portion, making it possible to make coaxial connector with switch 2 smaller and thinner.

[0024] 3, the terminal upper surface portion 31 has a terminal protrusion 34 that protrudes outward. The terminal protrusion 34 is disposed so as to overlap the corner portion 29 of the holder 20 in a top view. This allows the terminal protrusion 34 to be guarded by the corner portion 29, thereby preventing the terminal protrusion 34 from being accidentally deformed.

[0025] A terminal notch 36 extending in the length direction (X-axis direction) is disposed at the boundary between the terminal protruding portion 34 and the terminal side portion 32. This expands the engagement area, thereby achieving more reliable and stable engagement.

[0026] A pair of terminal notches 36 are formed by cutting out from one corner 29 toward the center and from the other corner 29 toward the center. The formation of the pair of terminal notches 36 results in one terminal notch end face 37 and the other terminal notch end face 37 being formed at the upper end of the terminal side portion 32. In top view, the gap where the terminal notch end face 37 and the terminal overhang portion 34 overlap functions as an engagement gap 44. Similarly, in top view, the gap where the notch surface 24 of the holding body 20 and the terminal overhang portion 34 of the external terminal 30 overlap functions as an engagement gap 44. Therefore, an engagement gap 44 is formed between the terminal overhang portion 34 and the terminal notch end face 37 and the notch surface 24, and the engagement gap 44 is used as a space for engaging and disengaging an engagement protrusion 8 of the outer conductor 7 of the mating coaxial connector 3, which will be described later.

[0027] The lower surface of the terminal protrusion 34 is configured to be flat, which allows smooth engagement and disengagement between the engaging protrusion 8 of the outer conductor 7 of the mating coaxial connector 3 and the terminal protrusion 34 of the external terminal 30.

[0028] In top view, the terminal protrusion 34 has a protrusion end 35 shaped to be able to contact the circumference of a circle centered on the coaxial center C. The fact that the protrusion end 35 has a shape that can contact the circumference of a circle centered on the coaxial center C means that the protrusion end 35 fits inside the circumference and can at least partially contact the circumference. This allows an engagement region to be formed between the engaging protrusion 8 of the outer conductor 7 of the mating coaxial connector 3 and the terminal protrusion 34 of the external terminal 30.

[0029] 1 to 4, 11, and 15, the protruding end 35 according to this embodiment has, for example, an arc shape concentric with the coaxial center C. This allows the terminal protruding portion 34 to be engaged with the engaging protrusion 8 of the outer conductor 7 of the mating coaxial connector 3 at any circumferential position on a circumference centered on the coaxial center C. The protruding end 35 shown in FIG. 15 has an arc shape that protrudes outward. As shown in FIG. 11, the arc-shaped protruding end 35 has a contact end 35a formed by intersecting with the side edge portion 32a of the terminal upper surface portion 31.

[0030] 15, the protruding ends 35 according to this embodiment are disposed at each of the four corner portions 29 in top view. This allows the coaxial connector with switch 2 to have four engagement points, thereby achieving more reliable and stable engagement.

[0031] The terminal notched end surface 37 of the external terminal 30 and the notched surface 24 of the corner portion 29 are connected flatly, thereby enabling smooth engagement and disengagement between the engaging protrusion 8 of the outer conductor 7 of the mating coaxial connector 3 and the terminal protrusion 34 of the external terminal 30.

[0032] [Coaxial Connector Set] A coaxial connector set 1 according to an embodiment will be described with reference to FIGS. 8 to 10. FIG.

[0033] As shown in Figure 8, the coaxial connector set 1 includes a female coaxial connector 2 with a switch and a male counterpart coaxial connector 3 that is configured to be connectable to the coaxial connector 2 with a switch in the height direction (Z-axis direction).

[0034] [Mating Coaxial Connector] As shown in FIG. 8, the mating coaxial connector 3 has a central conductor and a bushing member (not shown), and a cylindrical outer conductor 7 .

[0035] The central conductor is a conductive member extending vertically inside the outer conductor 7 and is electrically connected to the central conductor of a coaxial cable (not shown). The central conductor is configured to be resiliently movable by an elastic member (not shown). The outer conductor 7 is a conductive member having a cylindrical shape and is electrically connected to the outer conductor of the coaxial cable (not shown). The bushing member is an insulating member that electrically insulates the central conductor from the outer conductor 7.

[0036] The circumference of the coaxial connector with switch 2 is configured to have a size corresponding to the inner peripheral surface 7a of the outer conductor 7 of the mating coaxial connector 3 that can be connected to the coaxial connector with switch 2. As a result, the terminal protrusion 34 of the coaxial connector with switch 2 has a portion that comes into contact with the inner peripheral surface 7a of the outer conductor 7 of the mating coaxial connector 3, thereby stably engaging with the mating coaxial connector 3.

[0037] An engaging protrusion 8 that protrudes inward is formed on the inner peripheral surface 7a of the outer conductor 7. The engaging protrusion 8 is configured to engage with the terminal protrusion 34. This allows for a well-balanced engagement in terms of ease of manufacture and engagement stability.

[0038] A plurality of slits 9 extending toward the coaxial connector with switch 2 are formed at intervals in the circumferential direction in the lower part of the outer conductor 7. In other words, a plurality of separate engagement pieces 9a are formed in the lower part of the outer conductor 7. This allows the engagement pieces 9a to elastically displace in the radial direction, allowing smooth engagement and disengagement. In the example shown in Figure 8, eight slits 9 and engagement pieces 9a are formed. The engagement protrusions 8 are arranged circumferentially at positions where the slits 9 extend, and the engagement protrusions 8 are blank at the positions of the slits 9.

[0039] [Unattached State of Coaxial Connector Set] The coaxial connector with switch 2 is provided, for example, between the antenna and the transmitting / receiving circuit of a mobile phone. As shown in Fig. 8, when the mating coaxial connector 3 is not attached to the coaxial connector with switch 2, the movable terminal 12 and the fixed terminal 13 of the coaxial connector with switch 2 come into contact with each other, and are electrically connected to each other. This electrically connects, for example, the antenna and the transmitting / receiving circuit.

[0040] [Mounted State of Coaxial Connector Set] When the mating coaxial connector 3 is mounted on the coaxial connector with switch 2, the center conductor, to which a measuring device (not shown) is connected via a coaxial cable (not shown), is inserted downward into the guide hole 28 of the holder 20. The movable contact portion of the movable terminal 12 is then elastically pressed by the center conductor. As a result, the movable contact portion of the movable terminal 12 separates from the fixed contact portion of the fixed terminal 13, and the center conductor and the movable terminal 12 are electrically connected. This electrically connects, for example, a transmitting / receiving circuit and a measuring device. Therefore, the electrical connection path can be easily switched by switching between mounting and dismounting the mating coaxial connector 3 to the coaxial connector with switch 2.

[0041] 9 and 10, in the above-mentioned mounted state, the engaging projection 8 of the outer conductor 7 of the mating coaxial connector 3 engages with the terminal protrusion 34 of the external terminal 30. Therefore, the terminal protrusion 34 formed on the terminal upper surface 31 of the external terminal 30 functions as an engaging portion for engaging with the outer conductor 7 of the mating coaxial connector 3, eliminating the need for a conventional engaging cylindrical portion and enabling the coaxial connector with switch 2 to be made smaller and thinner.

[0042] [Modifications of Coaxial Connector with Switch] Modifications of the coaxial connector with switch 2 will be described with reference to FIGS. 12 to 14 and FIGS. 16 to 21. FIG.

[0043] 12 , in the coaxial connector with switch 2 according to the first modification, the protruding end 35 of the terminal protruding portion 34 has, in a top view, a linear shape that forms, for example, the base of an isosceles right triangle. The protruding end 35 has a contact end 35a that intersects with the side edge 32a of the terminal upper surface portion 31. The contact end 35a is configured to contact the circumference centered on the coaxial center C. In other words, the contact end 35a is located on the circumference centered on the coaxial center C. This allows the terminal protruding portion 34 to be engaged with the engaging protrusion 8 of the outer conductor 7 of the mating coaxial connector 3 at any circumferential position on the circumference centered on the coaxial center C.

[0044] 13 , in the coaxial connector 2 with a switch according to the second modification, the protruding end 35 of the terminal protruding portion 34 has an inwardly protruding arc shape in top view. The inwardly protruding arc-shaped protruding end 35 has a contact end 35a formed by intersecting with the side edge portion 32a of the terminal upper surface portion 31. The contact end 35a is configured to contact the circumference centered on the coaxial center C. In other words, the contact end 35a is located on the circumference centered on the coaxial center C. This allows the terminal protruding portion 34 to be engaged with the engaging protrusion 8 of the outer conductor 7 of the mating coaxial connector 3 at any circumferential position on the circumference centered on the coaxial center C.

[0045] 14 , in the coaxial connector with switch 2 according to the third modification, the protruding end 35 of the terminal protruding portion 34 has a triangular wave shape in top view. The protruding end 35 has a plurality of contact ends 35a, which are formed at portions intersecting with the side edges 32a of the terminal upper surface portion 31 and at peak portions of the triangular wave shape. Each of the contact ends 35a is configured to contact a circumference centered on the coaxial center C. In other words, the contact ends 35a are located on a circumference centered on the coaxial center C. This allows the terminal protruding portion 34 to be engaged with the engaging protrusion 8 of the outer conductor 7 of the mating coaxial connector 3 at any circumferential position on the circumference centered on the coaxial center C.

[0046] 16, the coaxial connector with a switch 2 according to the fourth modification has a rectangular shape in top view, with the upper and lower corners 29 cut out to form a hexagonal shape. In the fourth modification, the protruding ends 35 are concentric with the coaxial center C and have arc shapes that protrude outward, as in the case of FIG. 15, and are disposed at the left and right corners 29 in top view. This allows the coaxial connector with a switch 2 to have two engagement points, enabling engagement to be achieved with the minimum number of engagement points required.

[0047] As shown in Figure 17, the coaxial connector with a switch 2 according to the fifth modification has a pentagonal shape in top view, with the lower corner 29 cut out of a rectangular shape. In the fifth modification, the protruding ends 35 are concentric with the coaxial center C and have arc shapes that protrude outward, as in Figure 15, and are disposed at the upper corner 29, the left corner 29, and the right corner 29 in top view. This allows the coaxial connector with a switch 2 to have three engagement points, enabling engagement to be achieved with fewer engagement points.

[0048] As shown in Fig. 18, the coaxial connector with a switch 2 according to the sixth modification has, for example, a regular pentagonal shape when viewed from above. In the sixth modification, the protruding ends 35 are concentric with the coaxial center C and have an arc shape that protrudes outward, as in Fig. 15, and are disposed at each of the five corner portions 29 when viewed from above. This allows the coaxial connector with a switch 2 to have five engagement points, thereby achieving more reliable and stable engagement.

[0049] As shown in Fig. 19, the coaxial connector with a switch 2 according to the seventh modification has, for example, a regular hexagonal shape when viewed from above. In the seventh modification, the protruding ends 35 are concentric with the coaxial center C and have an arc shape that protrudes outward, as in Fig. 15, and are disposed at each of the six corner portions 29 when viewed from above. This allows the coaxial connector with a switch 2 to have six engagement points, thereby achieving more reliable and stable engagement.

[0050] As shown in FIG. 20 , in the switch-equipped coaxial connector 2 according to the eighth modification, the holder 20 has a rectangular shape in top view, and the external terminal 30 has four ears 39 that protrude outward in a rectangular shape from the holder 20. The ears 39 are located on the top, left, bottom, and right sides. Terminal extensions 34 are located at the corner ends of the ears 39 on one side and the other side, respectively. The external terminal 30 shown in FIG. 20 has eight terminal extensions 34. The extension ends 35 of the terminal extensions 34 have an L-shape in top view. The pointed portions of the extension ends 35 function as contact ends 35 a, and the external terminal 30 has eight contact ends 35 a. Each of the contact ends 35 a is configured to be able to contact a circumference centered on the coaxial center C. In other words, the contact ends 35 a are located on a circumference centered on the coaxial center C. As a result, the coaxial connector 2 with switch has eight engagement points, which allows for more reliable and stable engagement.

[0051] As shown in FIG. 21 , in the coaxial connector 2 with a switch according to the ninth modification, the holder 20 has a rectangular shape in top view, and the external terminal 30 has four ears 39 that protrude outward from the holder 20 in a rectangular shape. Two ears 39 are provided on each of the left and right sides. Terminal extensions 34 are provided at the corner ends of one or the other of the ears 39, and the external terminal 30 illustrated in FIG. 21 has four terminal extensions 34. The extension ends 35 of the terminal extensions 34 have an L-shape in top view. The pointed portions of the extension ends 35 function as contact ends 35 a, and the external terminal 30 has four contact ends 35 a. Each of the contact ends 35 a is configured to be able to contact a circumference centered on the coaxial center C. In other words, the contact ends 35 a are located on a circumference centered on the coaxial center C. This allows the coaxial connector with switch 2 to have four engagement points, ensuring reliable and stable engagement. The two ears 39 provided on each of the left and right sides have a separation space 39a between them.

[0052] Although specific embodiments of the present invention have been described, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention.

[0053] At least when a pair of terminal extension portions 34 are positioned opposite each other and each of the terminal extension portions 34 has at least one contact end 35a at the extension end 35, the terminal extension portion 34 functions as an engaging portion for engaging with the outer conductor 7 of the mating coaxial connector 3. The extension end 35 can have at least one curved contact end 35a.

[0054] The outer conductor 7 of the mating coaxial connector 3 can be configured so that the engaging pieces 9a are located at positions corresponding to the terminal overhanging portions 34, the engaging protrusions 8 are disposed on the inner peripheral surfaces 7a of the engaging pieces 9a, and the slits 9 have a circumferential slit width that allows the terminal overhanging portions 34 to pass through. As a result, by rotating the coaxial connector with switch 2 and the mating coaxial connector 3 relative to each other, the contact ends 35a of the overhanging ends 35 of the external terminals 30 slide against the inner surfaces of the outer conductor 7 of the mating coaxial connector 3, and engagement and disengagement can be performed between the engaging protrusions 8 of the outer conductor 7 of the mating coaxial connector 3 and the terminal overhanging portions 34 of the external terminals 30 depending on the relative rotational positions.

[0055] In this disclosure, the term "terminal upper surface portion 31 extending in a planar manner" is intended to include not only a configuration in which it extends flatly in the length direction (X-axis direction) and width direction (Y-axis direction), but also a configuration in which it has a non-engagement protrusion that protrudes slightly upward from the upper surface of terminal upper surface portion 31 but cannot be used for engagement.

[0056] The present invention and its embodiments can be summarized as follows.

[0057] A coaxial connector with a switch 2 according to one embodiment of the present disclosure comprises an internal terminal 10 that is conductive, a holder 20 that is electrically insulating and holds the internal terminal 10, an external terminal 30 that is conductive and covers the holder 20, and a coaxial center C that is the center of the coaxial relationship between the internal terminal 10 and the external terminal 30, wherein the external terminal 30 has a terminal upper surface portion 31 that extends in a planar shape, a terminal protrusion portion 34 that protrudes outward is disposed on the outer periphery of the terminal upper surface portion 31, and the terminal protrusion portion 34 has a protrusion end 35 that, when viewed from above, is shaped so as to be able to come into contact with a circumference centered on the coaxial center C.

[0058] According to the above configuration, the terminal protrusion 34 formed on the terminal upper surface 31 of the external terminal 30 functions as an engaging portion for engaging with the outer conductor 7 of the mating coaxial connector 3, eliminating the need for a conventional cylindrical engaging portion and making it possible to make the coaxial connector 2 with a switch smaller and thinner.

[0059] In one embodiment of the coaxial connector with switch 2, the holder 20 has a guide 27 that is inclined like a mortar, the terminal upper surface portion 31 has an opening 38 corresponding to the guide 27, the guide 27 is located below the terminal upper surface portion 38, and at least a portion of the guide 27 is exposed from the opening 38 when viewed from above.

[0060] According to the above embodiment, the conventional cylindrical engaging portion is no longer necessary, and the coaxial connector 2 with a switch can be made smaller and thinner.

[0061] In one embodiment of the coaxial connector with switch 2, the holder 20 has a corner portion 29, and the terminal protrusion 34 is arranged to overlap the corner portion 29 of the holder 20 in a top view.

[0062] According to the above embodiment, the terminal extension portion 34 is protected by the corner portion 29, and therefore, the terminal extension portion 34 can be prevented from being inadvertently deformed.

[0063] In the coaxial connector with switch 2 of one embodiment, the corner portion 29 of the holder 20 is formed with a body notch 26 defined by a notch surface 24 and a notch side surface 25 .

[0064] According to the above embodiment, the extension height and extension width of the terminal extension portion 34 can be easily adjusted.

[0065] In one embodiment of the coaxial connector with switch 2, the corner portion 29 has a notched surface 24, and the external terminal 30 has a terminal notched end surface 37, and the notched surface 24 and the terminal notched end surface 37 are connected flatly.

[0066] According to the above embodiment, the engagement projection 8 of the outer conductor 7 of the mating coaxial connector 3 and the terminal protrusion 34 of the external terminal 30 can be smoothly engaged and disengaged.

[0067] In one embodiment of the coaxial connector 2 with a switch, the external terminal 30 has the terminal upper surface portion 31, a terminal side portion 32 that is bent and connected to the terminal upper surface portion 31, and a terminal lower portion 33 that is bent and connected to the terminal side portion 32.

[0068] According to the above embodiment, the holding body 20 is clamped between the terminal upper surface portion 31, the terminal side portion 32, and the terminal lower portion 33 and then crimped, whereby the holding body 20 and the external terminal 30 can be fixed together.

[0069] In the coaxial connector 2 with a switch according to one embodiment, a terminal notch 36 is provided at the boundary between the terminal protruding portion 34 and the terminal side portion 32 .

[0070] According to the above embodiment, the engagement area is enlarged, so that more reliable and stable engagement can be achieved.

[0071] In the coaxial connector 2 with a switch according to one embodiment, the lower surface of the terminal extension 34 is flat.

[0072] According to the above embodiment, the engagement projection 8 of the outer conductor 7 of the mating coaxial connector 3 and the terminal protrusion 34 of the external terminal 30 can be smoothly engaged and disengaged.

[0073] In the coaxial connector 2 with a switch according to one embodiment, the terminal extension 34 has a contact end 35a that contacts the circumference.

[0074] According to the above embodiment, the terminal protrusion 34 can be provided at any circumferential position on the circumference centered on the coaxial center C and can engage with the engaging protrusion 8 of the outer conductor 7 of the mating coaxial connector 3 .

[0075] In the coaxial connector 2 with a switch according to one embodiment, the holder 20 has a square shape when viewed from above.

[0076] According to the above embodiment, a well-balanced engagement can be achieved in terms of ease of manufacture and engagement stability.

[0077] In one embodiment of the coaxial connector with a switch 2, the protruding end 35 has an arc shape that is concentric with the coaxial center C.

[0078] According to the above embodiment, the terminal protrusion 34 can be provided at any circumferential position on the circumference centered on the coaxial center C and can engage with the engaging protrusion 8 of the outer conductor 7 of the mating coaxial connector 3 .

[0079] In one embodiment of the coaxial connector with a switch 2, the circumference has a size corresponding to the inner circumferential surface 7a of the outer conductor 7 of the mating coaxial connector 3 that can be connected to the coaxial connector with a switch 2.

[0080] According to the above embodiment, the terminal extension 34 of the coaxial connector with switch 2 has a portion that contacts the inner circumferential surface 7a of the outer conductor 7 of the mating coaxial connector 3, so that engagement with the mating coaxial connector 3 is stable.

[0081] A coaxial connector set 1 according to another aspect of the present disclosure is characterized by comprising the above-described coaxial connector with switch 2 and a mating coaxial connector 3 connectable to the coaxial connector with switch 2.

[0082] According to the above configuration, the terminal protrusion 34 formed on the terminal upper surface 31 of the external terminal 30 functions as an engaging portion for engaging with the outer conductor 7 of the mating coaxial connector 3, eliminating the need for a conventional cylindrical engaging portion and making it possible to make the coaxial connector 2 with a switch smaller and thinner.

[0083] In one embodiment of the coaxial connector set 1, the coaxial connector with switch 2 is female, and the mating coaxial connector 3 is male; the internal terminal 10 of the coaxial connector with switch 2 has a movable terminal 12 and a fixed terminal 13; when the mating coaxial connector 3 is attached to the coaxial connector with switch 2, the movable terminal 12 moves away from the fixed terminal 13, thereby electrically disconnecting them; and when the mating coaxial connector 3 is removed from the coaxial connector with switch 2, the movable terminal 12 comes into contact with the fixed terminal 13, thereby electrically connecting them.

[0084] According to the above embodiment, by switching between the attachment and detachment of the mating coaxial connector 3 to the coaxial connector with switch 2, the electrical connection path can be easily switched.

[0085] In one embodiment of the coaxial connector set 1, the mating coaxial connector 3 has a cylindrical outer conductor 7, and an engaging protrusion 8 that protrudes inward is formed on the inner surface 7a of the outer conductor 7, and the engaging protrusion 8 is configured to engage with the terminal protrusion 34.

[0086] According to the above embodiment, a well-balanced engagement can be achieved in terms of ease of manufacture and engagement stability.

[0087] In addition, in one embodiment of the coaxial connector set 1, a plurality of slits 9 extending toward the coaxial connector 2 with a switch are formed at the bottom of the outer conductor 7, spaced apart in the circumferential direction, thereby forming a plurality of engaging pieces 9a.

[0088] According to the above embodiment, the engaging pieces 9a are elastically displaced in the radial direction, so that engagement and disengagement can be smoothly performed.

[0089] (Summary of the embodiment) (1) The coaxial connector with a switch of the present disclosure is a coaxial connector with a switch, comprising: a conductive internal terminal; an electrically insulating holder that holds the internal terminal; a conductive external terminal that covers the holder; and a coaxial center that is the center of the coaxial connection of the internal terminal and the external terminal, wherein the external terminal has a terminal upper surface portion that extends in a planar shape, and a terminal protrusion portion that protrudes outward is disposed on the outer periphery of the terminal upper surface portion, and the terminal protrusion portion has a protrusion end that is shaped so that it can come into contact with the circumference centered on the coaxial center when viewed from above.

[0090] (2) In the coaxial connector with switch of (1), the holder has a guide that is inclined like a mortar, and the upper surface of the terminal has an opening corresponding to the guide, the guide is located below the upper surface of the terminal, and at least a part of the guide is exposed from the opening when viewed from above.

[0091] (3) In the coaxial connector with a switch of (1) or (2), the holder has a corner portion, and the terminal extension portion is arranged so as to overlap the corner portion of the holder in a top view.

[0092] (4) In the coaxial connector with a switch of (3), a body notch defined by a notch surface and a notch side surface is formed at a corner of the holder.

[0093] (5) In the coaxial connector with a switch of (3) or (4), the corner portion has a notched surface and the external terminal has a terminal notched end surface, and the notched surface and the terminal notched end surface are connected flatly.

[0094] (6) In the coaxial connector with a switch of any one of (1) to (5), the external terminal has a terminal upper surface portion, a terminal side portion that is bent and connected to the terminal upper surface portion, and a terminal lower portion that is bent and connected to the terminal side portion.

[0095] (7) In the coaxial connector with a switch of (6), a terminal notch is provided at the boundary between the terminal extension and the terminal side.

[0096] (8) In the coaxial connector with a switch according to any one of (1) to (7), the lower surface of the terminal extension is flat.

[0097] (9) In the coaxial connector with a switch according to any one of (1) to (8), the terminal extension has a contact end that contacts the circumference.

[0098] (10) In the coaxial connector with a switch according to any one of (1) to (9), the holder has a square shape when viewed from above.

[0099] (11) In the coaxial connector with a switch according to any one of (1) to (10), the protruding end has an arc shape that is concentric with the coaxial center.

[0100] (12) In the coaxial connector with a switch of any one of (1) to (11), the coaxial connector with a switch has a size corresponding to the inner peripheral surface of the outer conductor of a mating coaxial connector that can be connected to the coaxial connector with a switch.

[0101] (13) A coaxial connector set according to the present disclosure includes the coaxial connector with a switch according to any one of (1) to (12) and a mating coaxial connector connectable to the coaxial connector with a switch.

[0102] (14) In the coaxial connector set of (13), the coaxial connector with a switch is female, the mating coaxial connector is male, and the internal terminal of the coaxial connector with a switch has a movable terminal and a fixed terminal. When the mating coaxial connector is attached to the coaxial connector with a switch, the movable terminal moves away from the fixed terminal, thereby electrically disconnecting the connector. When the mating coaxial connector is removed from the coaxial connector with a switch, the movable terminal comes into contact with the fixed terminal, thereby electrically connecting the connector.

[0103] (15) In the coaxial connector set of (13) or (14), the mating coaxial connector has a cylindrical outer conductor, and an engaging protrusion that protrudes inward is formed on the inner surface of the outer conductor, and the engaging protrusion is configured to engage with the terminal protrusion.

[0104] (16) In the coaxial connector set of (15), a plurality of slits extending toward the coaxial connector with switch are formed at the bottom of the outer conductor at intervals in the circumferential direction, thereby forming a plurality of engaging pieces.

[0105] DESCRIPTION OF SYMBOLS 1... Coaxial connector set 2... Coaxial connector with switch 3... Mating coaxial connector 7... Outer conductor 7a... Inner peripheral surface 7b... Outer peripheral surface 8... Engagement protrusion 9... Slit 9a... Engagement piece 10... Internal terminal 12... Movable terminal 13... Fixed terminal 20... Holding body 21... First holding body 22... First upper surface 23... Second holding body 24... Notched surface 25... Notched side surface 26... Body notch portion 27... Guide 28... Guide hole 29... Corner portion 30... External terminal 31... Terminal upper surface portion 32... Terminal side portion 32a... Side edge portion 33... Terminal lower portion 34... Terminal protruding portion 35... Protruding end 35a... Contact end 36... Terminal notch portion 37... Terminal notched end surface 38... Opening 39... Ear portion 39a... Separation space 44... Engagement gap C...Coaxial center

Claims

1. A coaxial connector with a switch comprising: a conductive internal terminal; an electrically insulating holder that holds the internal terminal; a conductive external terminal that covers the holder; and a coaxial center that is the center of the coaxial connection between the internal terminal and the external terminal, wherein the external terminal has a terminal upper surface that extends in a planar shape, and a terminal protrusion that protrudes outward is disposed on the outer periphery of the terminal upper surface, and the terminal protrusion has a protruding end that is shaped so that it can come into contact with a circumference centered on the coaxial center when viewed from above.

2. A coaxial connector with a switch as described in claim 1, wherein the holder has a guide that is inclined like a mortar, the upper surface of the terminal has an opening that corresponds to the guide, the guide is located below the upper surface of the terminal, and at least a part of the guide is exposed from the opening when viewed from above.

3. A coaxial connector with a switch as described in claim 1 or 2, wherein the holder has a corner portion, and the terminal extension portion is arranged so as to overlap the corner portion of the holder in a top view.

4. The coaxial connector with a switch according to claim 3, wherein a body notch defined by a notch surface and a notch side surface is formed in the corner of the retainer.

5. A coaxial connector with a switch as set forth in claim 3 or 4, wherein the corner portion has a notched surface and the external terminal has a terminal notched end surface, the notched surface and the terminal notched end surface being flat and continuous.

6. A coaxial connector with a switch as described in any one of claims 1 to 5, wherein the external terminal has the terminal upper surface portion, a terminal side portion that is bent and connected to the terminal upper surface portion, and a terminal lower portion that is bent and connected to the terminal side portion.

7. The coaxial connector with a switch according to claim 6, wherein a terminal notch is provided at the boundary between the terminal extension and the terminal side.

8. A coaxial connector with a switch according to any one of claims 1 to 7, wherein the lower surface of the terminal extension is flat.

9. A coaxial connector with a switch according to any one of claims 1 to 8, wherein the terminal extension has a contact end that contacts the circumference.

10. The coaxial connector with a switch according to any one of claims 1 to 9, wherein the holding body has a square shape when viewed from above.

11. A coaxial connector with a switch according to any one of claims 1 to 10, wherein the protruding end has an arc shape that is concentric with the coaxial center.

12. A coaxial connector with a switch according to any one of claims 1 to 11, wherein the circumference has a size corresponding to the inner circumferential surface of the outer conductor of a mating coaxial connector that can be connected to the coaxial connector with a switch.

13. A coaxial connector set comprising the coaxial connector with a switch according to any one of claims 1 to 12 and a mating coaxial connector connectable to the coaxial connector with a switch.

14. A coaxial connector set according to claim 13, wherein the coaxial connector with a switch is female and the mating coaxial connector is male, the internal terminal of the coaxial connector with a switch has a movable terminal and a fixed terminal, when the mating coaxial connector is attached to the coaxial connector with a switch, the movable terminal moves away from the fixed terminal, thereby electrically disconnecting the connector, and when the mating coaxial connector is removed from the coaxial connector with a switch, the movable terminal comes into contact with the fixed terminal, thereby electrically connecting the connector.

15. A coaxial connector set as claimed in claim 13 or 14, wherein the mating coaxial connector has a cylindrical outer conductor, the inner peripheral surface of which is formed with an engaging protrusion that protrudes inward, and the engaging protrusion is configured to engage with the terminal protrusion.

16. A coaxial connector set as described in claim 15, wherein a plurality of slits extending toward the coaxial connector with switch are formed at a distance from each other in the circumferential direction in the lower part of the outer conductor, thereby forming a plurality of engaging pieces.

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