Coaxial connector

Abstract

To reduce restrictions on an installing coaxial connector.SOLUTION: A coaxial connector includes a core wire and a housing that holds the core wire and to which an object to be attached is attached, and the area of the housing that faces the object to be attached and the area that holds the core wire are located on different planes.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] Conventionally, as disclosed in Patent Document 1, a printed wiring board for mounting a coaxial connector and an integrated circuit has been proposed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-049877 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the coaxial connector must be fitted to the edge of the printed wiring board, which places restrictions on installation.

[0005] Accordingly, one object of the present invention is to reduce the constraints on the installation of coaxial connectors. Other objects of the present invention will become apparent from the description of this specification. [Means for solving the problem]

[0006] One aspect of the present invention is a coaxial connector comprising a core wire and a housing for holding the core wire and for attaching an object to be attached, wherein an area of ​​the housing facing the object to be attached and an area of ​​the housing for holding the core wire are located on different planes.

[0007] According to the above aspects of the present invention, restrictions on mounting the coaxial connector can be reduced. [Brief description of the drawings]

[0008] [Figure 1] 1 is a perspective view of the mounting structure according to the first embodiment, seen from above and behind. FIG. [Diagram 2] 1 is a cross-sectional perspective view of a coaxial connector according to a first embodiment. [Diagram 3] FIG. 1 is an exploded perspective view of a coaxial connector according to a first embodiment. [Figure 4] 1 is a front and top perspective view of a coaxial connector according to a first embodiment. FIG. [Diagram 5] 1 is a perspective view of a coaxial connector according to a first embodiment, seen from above and behind; [Figure 6] 1 is a perspective view of a coaxial connector according to a first embodiment, seen from the front and below. [Figure 7] 11 is a front, bottom perspective view of a coaxial connector according to a second embodiment. FIG. [Figure 8] 8 is a front, bottom perspective view of a coaxial connector having a first recess smaller than that of the coaxial connector of FIG. 7; FIG. [Figure 9] FIG. 11 is a perspective view of the coaxial connector according to the third embodiment, as viewed from the front and below. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the present embodiment will be described with reference to the drawings. Note that the embodiments are not limited to the following first to third embodiments. In principle, the contents described in one embodiment are also applicable to the other embodiments. Furthermore, each embodiment and each modified example can be appropriately combined.

[0010] In the following, for the purpose of explaining the directions, one direction (front-rear direction) on the surface of the coaxial connector 10 facing the attachment object 30 is defined as the x direction, the left-right direction perpendicular to the x direction on that surface is defined as the y direction, and the approximately vertical direction perpendicular to the x and y directions is defined as the z direction. In addition, in Figures 1 to 9, the directions indicated by the arrows on the x, y, and z axes are defined as the forward direction, rightward direction, and upward direction, respectively.

[0011] (Mounting structure) The coaxial connector 10 of this embodiment is attached to the surface of an object 30, as shown in FIG.

[0012] (Coaxial Connector 10) The coaxial connector 10 is a plug-side coaxial connector of the SMP (Sub Miniature Push-on) or SMPM (Sub Miniature Push-on Mini) type. As shown in Fig. 2, the coaxial connector 10 has a housing 11, a core wire 15, and contacts 16. The coaxial connector 10 of the first embodiment further has a connection portion 13 and an insulating portion 17.

[0013] (Case 11) The housing 11 includes a base 11a and a holding portion 11b. The housing 11 is made of a conductive material such as brass. The base 11a and the holding portion 11b are integrally formed. Here, the integral formation includes a form in which the base 11a and the holding portion 11b are formed as separate bodies and connected by welding or the like.

[0014] (Base 11a) The base 11a holds the holding portion 11b. The base 11a has a mounting surface (lower surface) 11a1, that is, a surface facing the mounting object 30. The mounting surface 11a1 is formed with a first recess 11a2 recessed upward in the z direction. The first recess 11a2 is filled with a bonding member 20 such as cream-like solder. FIG. 2 shows an example in which a partial area of ​​the first recess 11a2 is filled with the bonding member 20. The amount of the bonding member 20 filled in the first recess 11a2 is adjusted so that the bonding member 20 melted by heat is sufficiently distributed in the area of ​​the mounting surface 11a1 of the base 11a that contacts the mounting object 30.

[0015] 3 and 4, a passage 11a3 communicating with the first recess 11a2 is formed in at least one of the side surfaces of the base 11a. In the first embodiment, the passage 11a3 is formed in the left side surface and the right side surface of the base 11a. The passage 11a3 is used as a discharge path for thermally expanded air and vaporized flux during reflow soldering.

[0016] 5 and 6, a first cutout 11a4 is formed on the back surface of the base 11a. The first cutout 11a4 communicates with a hole H, which will be described later. The first cutout 11a4 is formed so as to expose the tip of the contact 16 to the outside without contacting the contact 16 extending from the core wire 15. The first recess 11a2 and the passage 11a3 do not communicate with the hole H and the first cutout 11a4.

[0017] (Holding part 11b) The holding portion 11b holds the core wire 15 via the insulating portion 17. In the region of the holding portion 11b where the first insulator 17a of the insulating portion 17 is inserted, a fitting groove 11b1 into which the first insulator 17a is fitted is formed. The upper surface of the holding portion 11b, that is, the inclined surface on the opposite side in the z direction to the mounting surface 11a1 of the housing 11, has a semi-cylindrical shape. A second notch 11b2 is formed in the upper surface of the holding portion 11b. The second notch 11b2 is used as a latching region for a clip (not shown) when temporarily fixing the coaxial connector 10 to the mounting object 30 in a stage prior to reflow soldering. The second notch 11b2 has a surface that is approximately perpendicular to the z direction, and a second recess 11b3 that is recessed downward in the z direction is formed in the surface that is approximately perpendicular to the z direction. The second recess 11b3 does not communicate with the hole H and the first recess 11a2. The second recess 11b3 is used for positioning the clip, etc.

[0018] (hole H) Holes H are formed in the region of the base 11a where the contacts 16 are located and in the region of the holding portion 11b where the core wire 15 is held. The holes H penetrate the housing 11 between a region in the x direction front and z direction top, and a region in the x direction rear and z direction bottom. The core wire 15 and the insulating portion 17 are inserted into the holes H. The core wire 15 is held by the holding portion 11b via the insulating portion 17 with the direction in which the core wire 15 extends forming an inclination angle θ1 (0 degrees<θ1<90 degrees) with the xy plane.

[0019] (Connection 13) The connection part 13 is attached to the holding part 11b at the front in the x direction and above in the z direction. The connection part 13 has a generally cylindrical shape that covers the side of the tip part of the core wire 15 at the front in the x direction and above in the z direction. The connection part 13 is connected to the outer conductor of the jack-side coaxial connector of the coaxial cable (not shown). The connection part 13 is made of a conductive material such as a copper alloy.

[0020] (Core 15) The core wire 15 is made of a conductive material such as phosphor bronze, and is arranged straight in the hole H of the holding part 11b. One end of the core wire 15 (the tip part at the front in the x direction and at the upper part in the z direction) is connected to the inner conductor (female side center contact) of the jack-side coaxial connector of the coaxial cable (not shown). A contact 16 is formed at the other end of the core wire 15 (the tip part at the rear in the x direction and at the lower part in the z direction). The side of the core wire 15 is covered with an insulating part 17. However, one end of the core wire 15 (the tip part at the front in the x direction and at the upper part in the z direction) is exposed without being covered by the insulating part 17, and extends to the connection part 13.

[0021] (Contact 16) The contact 16 is thinner than the core wire 15 and is made of a conductive material such as phosphor bronze. The contact 16 extends from the other end of the core wire 15 (the tip end rearward in the x direction and downward in the z direction) further rearward in the x direction and downward in the z direction. The contact 16 is exposed without being covered by the insulating portion 17, and has a tapered shape with a narrow tip. The tip end of the contact 16 contacts the signal line 31 of the attachment object 30. The contact 16 extends in the same direction as the core wire 15 extends. However, when the coaxial connector 10 is attached to the attachment object 30, the area of ​​the contact 16 in contact with the attachment object 30 is elastically deformed and bent by the attachment object 30.

[0022] The core wire 15 and the contacts 16 are integrally formed. Here, the term "integrally formed" includes a configuration in which the core wire 15 and the contacts 16 are formed as separate bodies and connected by welding or the like.

[0023] (Insulation part 17) The insulating portion 17 is made of an insulating material such as rubber or Teflon (registered trademark), and includes a first insulator 17a and a second insulator 17b. The first insulator 17a covers the side of the core wire 15 in a region in front of the core wire 15 in the x direction and above the core wire 15 in the z direction. The second insulator 17b covers the side of the core wire 15 in a region in the rear of the core wire 15 in the x direction and below the core wire 15 in the z direction. The first insulator 17a prevents the core wire 15 from being electrically connected to the housing 11 or the connection portion 13. The second insulator 17b prevents the core wire 15 from being electrically connected to the housing 11.

[0024] (Attachment object 30) The mounting object 30 is a flexible substrate made of an insulating film or the like. A signal line 31 made of a conductive material is formed on the surface of the mounting object 30. An end of the signal line 31 is formed in an area of ​​the mounting object 30 that comes into contact with the contact 16 of the coaxial connector 10. A ground pattern is formed in an area of ​​the mounting object 30 that comes into contact with the mounting surface 11a1.

[0025] (Positional relationship between the housing 11 and the core wire 15) The housing 11 includes a region (mounting surface 11a1) of the housing 11 facing the attachment object 30 and a region of the housing 11 that holds the core wire 15, and these are located on different planes. Specifically, as shown in Fig. 2, the region (mounting surface 11a1) of the housing 11 facing the attachment object 30 has a surface parallel to the xy plane, and an imaginary plane P including the region of the housing 11 that holds the core wire 15 has another surface that is not parallel to the xy plane.

[0026] It is desirable that the area of ​​the housing 11 facing the attachment object 30 (attachment surface 11a1) extends in a direction inclined by an inclination angle θ1 with respect to the extension direction of the core wire 15 held in the housing 11. In this case, a plane P including the area of ​​the housing 11 that holds the core wire 15 has a surface that forms a predetermined inclination angle θ1 with the xy plane.

[0027] (Assembly procedure for coaxial connector 10) Next, the assembly procedure of the coaxial connector 10 will be described. The first recess 11a2 is filled with the joint member 20 in advance. However, the filling of the first recess 11a2 with the joint member 20 may be performed in a later process, such as after the connection portion 13 is fitted into the holding portion 11b. The first insulator 17a is fitted into the core wire 15 at the front in the x direction and above in the z direction. The second insulator 17b is fitted into the core wire 15 at the rear in the x direction and above in the z direction. As a result, the area of ​​the core wire 15 other than one end is covered by the insulating portion 17. One end of the core wire 15 (the tip portion at the front in the x direction and above in the z direction) and the contact 16 are exposed from the insulating portion 17.

[0028] The insulating portion 17 holding the core wire 15 and the contacts 16 is fitted into the hole H. The area of ​​the second insulator 17b that protrudes from the mounting surface 11a1 is cut away. However, prior to the fitting stage, the lower end of the second insulator 17b may be formed in a shape that does not protrude downward in the z direction from the mounting surface 11a1. The connecting portion 13 is fitted into the holding portion 11b. This completes the coaxial connector 10 of the first embodiment.

[0029] (Procedure for fixing the coaxial connector 10 to the mounting object 30) Next, a procedure for fixing the coaxial connector 10 to the mounting object 30 will be described. The coaxial connector 10 is assembled in advance. A signal line 31 and a ground pattern are formed on the mounting object 30. The coaxial connector 10 is brought close to the mounting object 30 so that the tip of the contact 16 contacts the end of the signal line 31 of the mounting object 30 and the mounting surface 11a1 contacts the ground pattern of the mounting object 30. The second notch 11b2 of the holding portion 11b and the mounting object 30 are clamped by the clip. The coaxial connector 10 and the mounting object 30 are temporarily fixed by the clamping of the clip. In the temporarily fixed state, the coaxial connector 10 and the mounting object 30 are placed in a reflow furnace. The heat in the reflow furnace melts the bonding material 20 filled in the first recess 11a2 and penetrates between the mounting surface 11a1 and the ground pattern of the mounting object 30, bonding the base 11a and the mounting object 30. The air that thermally expands in the space between the first recess 11a2 and the mounting object 30 and the vaporized flux are discharged through the passage 11a3. When there are multiple coaxial connectors 10, each coaxial connector 10 is bonded to the mounting object 30. This completes the fixing of the coaxial connector 10 of the first embodiment to the mounting object 30.

[0030] (Effect of the area facing the attachment object 30 and the area holding the core wire 15 being located on different planes) Since the area of ​​the housing facing the attachment object 30 and the area holding the core wire 15 are located on different planes, the coaxial connector 10 can be positioned in various positions on the attachment object 30, reducing installation constraints.

[0031] (Effect of the region facing the attachment object 30 extending in a direction inclined by the inclination angle θ1 with respect to the extending direction of the core wire 15) If the core wire 15 is perpendicular to the mounting surface 11a1, adverse effects on electrical characteristics such as transmission line reflections may occur. However, if the core wire 15 is held at a gentler inclination than perpendicular, adverse electrical effects such as transmission line reflections are less likely to occur.

[0032] (Effect of surface bonding at the mounting surface 11a1) Compared to a form where the joint is made with lines or points, the joint area is larger and stronger. Therefore, even if an external force is applied, the joint is less likely to come off. Compared to a form where a protruding area is provided around the periphery of the housing 11 for fastening screws or the like, the housing 11 can be made smaller.

[0033] (Effect of filling the first recess 11a2 with the bonding member 20) By providing the first recess 11a2, the coaxial connector 10 can be made lighter in weight than a configuration in which the first recess 11a2 is not provided, and the first recess 11a2 can also be used as a storage location for the joining member 20.

[0034] (Effect of providing the passage 11a3) It can be utilized as a discharge path from the area between the first recess 11a2 and the attachment object 30.

[0035] (Effect of Providing First Notch 11a4) The first cutout 11a4 makes it possible to form an electrical isolation space between the base 11a and the contact 16. When the coaxial connector 10 is attached to an object 30, alignment can be easily performed by aligning the contact 16, which is visible from the outside, with the signal line 31 via the first cutout 11a4.

[0036] (Effect of Providing Second Cutout 11b2) Even in an inclined region, the coaxial connector 10 and the attachment object 30 can be easily temporarily fixed together by clamping with a clip or the like.

[0037] (Effect of connecting the contact 16 to the signal line 31 of the attachment object 30 in a bent state) Electrical connection is possible by the reaction force of the bending, without using any joining such as soldering.

[0038] (Effects of applying coaxial connector 10 to SMP connectors, etc.) The small coaxial connector 10 can be easily attached to the object 30. In particular, when multiple coaxial connectors 10 are arranged in close proximity, the multiple coaxial connectors 10 can be easily attached to the object 30. Electrical connection can be made between the contacts 16 and the signal lines of the object 30 without using hand soldering or other joining. This allows the line through which the signal flows to be made thinner, suppressing deterioration of electrical characteristics.

[0039] (Examples of application of the shape of the first recess 11a2) In the first embodiment, an example was described in which the first recess 11a2 has a relatively complicated shape with projections and recesses formed inside. However, the shape of the first recess 11a2 is not limited thereto, and may be a simple shape as shown in Figs. 7 and 8 (second embodiment). In the second embodiment, the first recess 11a2 having a substantially rectangular parallelepiped shape is shown as an example of a simple shape. The size of the first recess 11a2 is desirably determined based on the area of ​​the mounting surface 11a1 required for joining to the mounting target 30, the volume of the first recess 11a2 required for filling the joining member 20, and the like. FIG. 8 shows an example in which a first recess 11a2 having a smaller volume than the first recess 11a2 in FIG. 7 is formed.

[0040] (Application example of mounting surface 11a1 of base 11a) In the first and second embodiments, no structure for preventing the intrusion of the joining member 20 was provided between the first recess 11a2 and the lower end region of the hole H on the mounting surface 11a1. However, as shown in FIG. 9, a groove region 11a5 may be formed between the first recess 11a2 and the hole H on the mounting surface 11a1 (third embodiment, see FIG. 9). The groove region 11a5 surrounds the first cutout 11a4, the contact 16, the lower end region of the second insulator 17b, and the lower end region of the hole H.

[0041] (Effect of Providing Groove Region 11a5) The groove region 11a5 restricts the flow of the joining member 20, making it difficult for the joining member 20 to spread beyond the groove region 11a5. Therefore, the joining member 20 is unlikely to enter the region surrounded by the groove region 11a5 on the mounting surface 11a1, and it is possible to prevent mismatching of the characteristic impedance caused by a change in the gap between the region where the ground pattern is located and the core wire 15.

[0042] (Example of application of the position of passage 11a3) In the first embodiment, an example has been described in which the passage 11a3 is formed on the left and right sides of the base 11a. However, the position where the passage 11a3 is formed is not limited to the left and right sides of the base 11a, and the passage 11a3 may be formed in another location, for example, on the front surface of the base 11a, as shown in Figs. 7 to 9.

[0043] (Application example 1 of coaxial connector 10) In the first to third embodiments, the coaxial connector 10 has been described as an example of an SMP connector or an SMPM connector. A configuration in which the housing 11 holds the core wire 15 in a state in which the area facing the attachment object 30 (the attachment surface 11a1) and the area holding the core wire 15 are located on different planes is likely to be effective when used in a small coaxial connector 10 such as an SMPM connector. However, the coaxial connector 10 is not limited to an SMP connector or an SMPM connector, and may be another coaxial connector.

[0044] (Application example 2 of coaxial connector 10) In the first to third embodiments, an example has been described in which the coaxial connector 10 is a plug-side coaxial connector. However, the coaxial connector 10 may be a jack-side coaxial connector.

[0045] (Application example 3 of coaxial connector 10) In the first to third embodiments, an example has been described in which two coaxial connectors 10 are attached to the attachment object 30. However, the number of coaxial connectors 10 attached to the attachment object 30 is not limited to two.

[0046] (Application example 4 of coaxial connector 10) In the first to third embodiments, an example has been described in which the mounting surface 11a1 of the base 11a of the housing 11 is a region of the housing 11 that faces the mounting object 30. However, the region of the housing 11 that faces the mounting object 30 is not limited to being configured in a planar shape, and may be configured in a linear or dotted shape.

[0047] (Application example 5 of coaxial connector 10) In the first to third embodiments, an example has been described in which the reaction force of the bending of the contact 16 is used to connect to the signal line 31 of the attachment target 30. However, the connection between the contact 16 and the signal line 31 may be performed by bonding or the like instead of or in addition to the reaction force of the bending.

[0048] (Application example of joining member 20) In the first to third embodiments, the coaxial connector 10 and the attachment object 30 are joined by soldering. However, they may be joined by other methods such as a conductive adhesive.

[0049] (Application example of joining member 20) In the first to third embodiments, an example has been described in which the joining members 20 are melted by applying heat in a reflow furnace. However, the joining members 20 may be melted by other methods. For example, a soldering iron may be applied to the housing 11 to apply heat to the coaxial connector 10, thereby melting the joining members 20 filled in the first recess 11a2.

[0050] (Application example 1 of mounting object 30) In the first to third embodiments, an example has been described in which the attachment object 30 is a flexible substrate. However, the attachment object 30 may be a non-flexible substrate made of epoxy resin or the like, or may be a member other than a substrate.

[0051] (Application example 1 of mounting object 30) In the first to third embodiments, the contacts 16 are connected to the signal lines 31. However, the contacts 16 may be connected to the power supply lines.

[0052] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope of the invention and its equivalents described in the claims, as well as in the scope and spirit of the invention.

[0053] According to the present specification, there is provided a coaxial connector having the following aspects. (Aspect 1) A first aspect comprises a core wire and a housing that holds the core wire and to which an object to be attached is attached, the area of ​​the housing facing the object to be attached and the area that holds the core wire being located on different planes.

[0054] According to the above-described aspect, the area of ​​the housing facing the object to be attached and the area that holds the core wire are located on different planes, so that the coaxial connector can be positioned in various positions on the object to be attached, thereby reducing installation constraints.

[0055] (Aspect 2) In a second aspect, a region of the housing that faces the attachment object extends in a direction inclined with respect to an extending direction of the core wire held in the housing.

[0056] According to the above-mentioned aspect, adverse electrical effects such as transmission line reflections are less likely to occur compared to the case where the optical fiber extends in the vertical direction.

[0057] (Aspect 3) In a third aspect, the area of ​​the housing facing the attachment object has an attachment surface that comes into contact with the attachment object.

[0058] According to the above-mentioned embodiment, the joining area is larger and stronger than in the case of joining at lines or points. Therefore, even if an external force is applied, the joining area is less likely to come off. Compared to the case having a protruding area around the case, such as a fastening screw socket, the case can be made smaller.

[0059] (Aspect 4) In aspect 4, the housing has a first recess in an area facing the object to be attached, which is recessed deeper than the mounting surface, and the first recess is filled with a joining material used to join the object to be attached and the mounting surface.

[0060] According to the above-mentioned aspect, by providing the first recess, the coaxial connector can be made lighter in weight than in an aspect in which the first recess is not provided, and the first recess can also be utilized as a storage location for the joining member.

[0061] (Aspect 5) In a fifth aspect, the housing has a passage that communicates between the outside and the first recess.

[0062] According to the above-mentioned aspect, it can be utilized as a discharge path from the area between the first recess and the attachment object.

[0063] (Aspect 6) A sixth aspect includes a contact extending from the core wire, and a first notch is formed on the mounting surface and a side surface of the housing at a position where the contact can be seen.

[0064] According to the above-mentioned aspect, the first cutout can form an electrical isolation space between the housing and the contacts. When attaching the coaxial connector to an object to which the connector is to be attached, the first cutout can be used to easily align the contacts visible from the outside with the signal lines.

[0065] (Aspect 7) In a seventh aspect, a groove region is formed in the mounting surface between the first recess and the first cutout.

[0066] According to the above-mentioned aspect, the groove region restricts the flow of the joining material and makes it difficult for the joining material to spread beyond the groove region, so that the joining material is unlikely to enter the region surrounded by the groove region on the mounting surface, and it is possible to prevent mismatching of the characteristic impedance caused by a change in the gap between the region where the ground pattern is located and the core wire.

[0067] (Aspect 8) In an eighth aspect, a second notch is formed on the side of the housing opposite the mounting surface.

[0068] According to the above-described aspect, even in an inclined area, the coaxial connector can be easily temporarily fastened to the attachment object by clamping with a clip or the like.

[0069] (Aspect 9) A ninth aspect includes a contact extending from the core wire, the contact being electrically connected to the attachment object in a bent state.

[0070] According to the above-described embodiment, electrical connection can be achieved by the reaction force of the bending, without using any joining such as soldering.

[0071] (Aspect 10) In a tenth aspect, the object to be attached is a flexible substrate, and the coaxial connector is an SMP connector or an SMPM connector.

[0072] According to the above-mentioned aspect, it is easy to attach a small coaxial connector to a substrate. Electrical connection between the contact and the signal line of the substrate can be achieved without using hand soldering or other joining. This allows the signal line to be made thinner, and the deterioration of electrical characteristics can be suppressed. [Explanation of symbols]

[0073] 10 Coaxial Connector 11. Cabinet 11a1 Mounting surface (bottom surface) 11a2 First recess 11a3 aisle 11a4 First notch 11a5 groove area 11b2 Second notch 15 core wire 16 Contact 17 Insulation 20 Joining materials 30 Mounting object (flexible circuit board) 31 Signal Line

Claims

1. A core wire, A housing for holding the core wire and attaching an object to be attached thereto, A coaxial connector in which an area of ​​the housing that faces the attachment object and an area that holds the core wire are located on different planes.

2. 2. The coaxial connector according to claim 1, wherein a region of said housing facing an object to which said connector is attached extends in a direction inclined with respect to an extending direction of said core wire held in said housing.

3. 3. The coaxial connector according to claim 1, wherein a region of said housing facing said object has a mounting surface adapted to join with said object.

4. a first recess portion that is recessed from the mounting surface in a region of the housing that faces the mounting object; The coaxial connector according to claim 3 , wherein the first recess is filled with a joining material used for joining the attachment object and the attachment surface.

5. The coaxial connector according to claim 4 , wherein the housing has a passage that communicates between the outside and the first recess.

6. A contact extending from the core wire is provided. The coaxial connector according to claim 3 , wherein a first notch is formed in the mounting surface and a side surface of the housing at a position where the contact can be seen.

7. The coaxial connector of claim 6 , wherein a groove region is formed in the mounting surface between the first recess and the first cutout.

8. The coaxial connector according to claim 3 , wherein a second notch is formed on a side of the housing opposite to the mounting surface.

9. A contact extending from the core wire is provided.

3. The coaxial connector according to claim 1, wherein the contacts are electrically connected to the object in a deflected state.

10. the attachment object is a flexible substrate, 10. The coaxial connector of claim 9, wherein the coaxial connector is an SMP connector or an SMPM connector.

Images