Coaxial connector

Abstract

To provide a coaxial connector having a simple structure that can hold a terminal accommodated in a terminal accommodating portion at a regular position while restricting the rotation of the terminal.SOLUTION: A coaxial connector includes a housing and a retainer 50 attached to the housing. In the housing is provided a terminal accommodating portion into which a terminal is inserted from the rear side thereof. The terminal includes a crimped portion that is crimped to have a polygonal outer periphery in a cross section, and a flange portion that is located in front of the crimped portion in a state where the terminal is inserted into the terminal accommodating portion and formed to protrude outward in a direction to an outer periphery beyond the crimped portion. The retainer 50 includes an engagement portion 53A that is engaged with the outer periphery including at least one corner of the crimped portion of the terminal in a state where the terminal is accommodated at a normal position in the terminal accommodating portion and the retainer 50 is attached at a locking position, an abutment portion 50A that abuts against the flange portion of the terminal from the rear side, and a recess portion 53B between the engagement portion 53A and the abutment portion 50A such that the engagement portion 53A is set back toward an outer peripheral side of the terminal.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The technology disclosed in this specification relates to a coaxial connector. [Background technology]

[0002] As an example of a coaxial connector, the following Patent Document 1 discloses a coaxial connector including an outer housing (housing) in which a terminal accommodating chamber (terminal accommodating portion) for accommodating a jack (terminal) connected to an end of a coaxial cable is formed, and a retainer attached to the outer housing for locking (retaining) the jack in the terminal accommodating chamber. The jack has a ring (flange portion) protruding in the outer circumferential direction of an outer contact, the outer housing has a housing lance for preventing the ring of the terminal accommodated inside the terminal accommodating chamber from falling out, and the retainer is formed so as to be freely insertable into a locking hole (retainer insertion hole) formed in the outer housing, and has a locking claw piece (abutment portion) for preventing the ring from falling out. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-153464 A Summary of the Invention [Problem to be solved by the invention]

[0004] For example, in coaxial connectors used in parts where an external force is applied to the cable during use, such as vehicle doors, the terminals housed in the terminal housing may rotate, causing the contacts of the terminals to rub against each other and wear out. To reduce this situation, a stopper (anti-rotation device) to restrict the rotation of the terminals has been attached to the housing. In coaxial connectors where a stopper is attached to the housing in addition to a retainer to prevent the terminals from coming loose and to hold them in the correct position, the number of components and the number of assembly steps increase. In addition, there is a concern that the strength may be reduced by forming multiple insertion holes in the housing, and the degree of freedom in connector design is also reduced.

[0005] The technology disclosed in this specification was developed based on the above circumstances, and aims to provide a coaxial connector of simple configuration that can hold the terminals accommodated in the terminal accommodating portion in the correct position while restricting their rotation. [Means for solving the problem]

[0006] The coaxial connector disclosed in this specification includes a housing having a terminal accommodating portion provided therein into which a terminal connected to a coaxial cable is inserted from behind, and a retainer attached to the housing, and the terminal has a crimping portion crimped to have a polygonal outer periphery in cross section, and a flange portion located on the front side of the crimping portion in the insertion direction of the terminal when the terminal is inserted into the terminal accommodating portion and formed to protrude in the outer periphery direction beyond the crimping portion, and the housing includes a retainer attached to the housing in the insertion direction of the terminal. A retainer insertion hole is formed through the wall of the terminal accommodating portion in a direction intersecting the direction of the terminal, and the retainer has an engagement portion which is attached to the outer periphery including at least one corner of the crimping portion of the terminal when the terminal is accommodated in the correct position in the terminal accommodating portion and the retainer is inserted through the retainer insertion hole and attached to a locked position, an abutment portion which abuts against the flange portion of the terminal from behind, and a recess between the engagement portion and the abutment portion, where the engagement portion is set back toward the outer periphery of the terminal. Effect of the Invention

[0007] According to the present disclosure, it is possible to provide a coaxial connector with a simple configuration that is capable of holding a terminal accommodated in a terminal accommodating portion in a correct position while restricting the rotation of the terminal. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing the appearance of a connector structure in which a coaxial connector according to an embodiment is mated with a mating coaxial connector. [Diagram 2] FIG. 2 is an exploded view of the connector structure of FIG. [Diagram 3] FIG. 3 is a partial cutaway side view of the coaxial connector with the retainer installed in the locked position. [Figure 4] FIG. 4 is a perspective view showing the appearance of one example of a terminal accommodated in a coaxial connector. [Diagram 5] FIG. 5 is a perspective view showing the appearance of another example of a terminal accommodated in a coaxial connector. [Figure 6] FIG. 6 is a perspective view of the retainer. [Figure 7] FIG. 7 is a front view (front and rear) of the retainer. [Figure 8] FIG. 8 is a cross-sectional view taken along line AA' of FIG. [Figure 9A] and [Figure 9B] 9A and 9B are explanatory diagrams that typically show how a terminal in a half-inserted position is pushed into a regular position by a retainer. [Figure 10] FIG. 10 is a cross-sectional view taken along line BB' of FIG. 9B. [Figure 11] FIG. 11 is a partially enlarged view of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure are listed and described.

[0010] (1) A coaxial connector according to the present disclosure includes a housing having a terminal accommodating portion therein into which a terminal connected to a coaxial cable is inserted from behind, and a retainer attached to the housing, wherein the terminal has a crimping portion crimped to have a cross-sectional outer periphery that is polygonal, and a flange portion that is located on the front side of the crimping portion in a direction in which the terminal is inserted into the terminal accommodating portion and that is formed to protrude in an outer periphery direction beyond the crimping portion when the terminal is inserted into the terminal accommodating portion, and the housing includes a retainer that is attached to the housing and has a terminal accommodating portion that is crimped to have a cross-sectional outer periphery that is polygonal, and a flange portion that is located on the front side of the crimping portion in a direction in which the terminal is inserted into the terminal accommodating portion and that is formed to protrude in an outer periphery direction beyond the crimping portion, a retainer insertion hole is formed which penetrates the wall of the terminal accommodating portion in the direction of engagement, and the retainer has an engagement portion which is attached to the outer periphery including at least one corner of the crimping portion of the terminal when the terminal is accommodated in the correct position in the terminal accommodating portion and the retainer is inserted through the retainer insertion hole and attached to a locked position, an abutment portion which abuts against the flange portion of the terminal from behind, and a recess between the engagement portion and the abutment portion, where the engagement portion is recessed toward the outer periphery of the terminal.

[0011] According to the above-mentioned configuration (1), the fitting portion functions as a rotation prevention portion to restrict the rotation of the terminal, and the abutting portion functions as a slip-out prevention portion to prevent the terminal from slipping out backward. Since the retainer has both the fitting portion and the abutting portion, the terminal can be prevented from slipping out and from rotating simply by attaching the retainer. Here, in a terminal in which a crimping portion is formed by tightening the rear side of the flange portion of the terminal fitting fitted around the coaxial cable, an incomplete crimping portion having a larger diameter than the crimping portion is formed between the flange portion and the crimping portion. In this regard, in the above-mentioned configuration, a recess is provided between the abutting portion and the fitting portion of the retainer, and the recess functions as a relief portion for the incomplete crimping portion, so that the fitting portion can be fitted to the outer periphery of the crimping portion without being interfered with by the incomplete crimping portion. As a result, the terminal can be held in the normal position of the terminal accommodating portion while restricting rotation in the coaxial connector with a simple configuration.

[0012] (2) In the coaxial connector according to the present disclosure, the retainer preferably has an inclined portion at an end of the abutment portion on the insertion direction side of the retainer, the inclined portion inclining rearward as the end approaches the insertion direction. When the retainer is inserted through the retainer insertion hole with the terminal in a half-inserted position behind the normal position in the terminal accommodating section, the insertion-side end of the abutment portion first abuts against the flange protruding in the radial direction. According to the configuration of (2) above, this end is provided with an inclined portion that slopes backward, so that when the retainer is further pushed in, the inclined portion presses the flange forward, moving the terminal to the normal position. In this way, the terminal that was in the half-inserted position can be moved to the normal position and accommodated simply by inserting the retainer and pushing it into the locking position.

[0013] (3) In the coaxial connector according to the present disclosure, it is preferable that the retainer has a symmetrical structure with respect to a center plane in the front-rear direction when attached to the housing. According to the above configuration (3), the installation work can be performed without considering the front and rear of the retainer, improving work efficiency. In addition, since the present invention can be applied to both male and female coaxial connectors that respectively accommodate male and female terminals that are connected facing each other, the parts can be standardized, making parts management easier.

[0014] [Details of the embodiment of the present disclosure] The present disclosure will be described below with reference to the embodiments. The present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0015] <Embodiment> The embodiment will be described with reference to FIGS. In the present disclosure, the side of the coaxial connector facing the mating coaxial connector, i.e., the left side of FIG. 3 is the front (the opposite side is the rear) for the coaxial connector shown in FIG. 3. In the following description, the upper side of FIG. 3 is the top (the opposite side is the bottom) for convenience, but the coaxial connector and the connector structure can be used in any position. The retainer will be described based on the position when the retainer is attached to the housing. Also, the direction in which the retainer is inserted into the housing (the direction from top to bottom) may be referred to as the insertion direction. Some of the drawings except for FIGS. 4 and 5 show the X-axis, Y-axis, and Z-axis of the Cartesian coordinate system XYZ, and each axis direction is drawn to be the same direction in each drawing. The Z-axis direction represents the up-down direction, the Y-axis direction represents the front-back direction, and the X-axis direction represents the left-right direction. Note that, for multiple identical members, a reference symbol may be attached to one member and the reference symbols of the other members may be omitted.

[0016] (Connector structure) 1 and 2 show a connector structure 100 including a coaxial connector 1 according to this embodiment. The connector structure 100 is formed by mating a male coaxial connector 1 accommodating a male terminal T100 connected to an end of a coaxial cable C1 with a female coaxial connector 2 accommodating a female terminal T200 connected to an end of a coaxial cable C2. As shown in FIG. 2, the male coaxial connector 1 includes a male housing 10 having a cylindrical hood portion 13 protruding forward, and a retainer 50 attached to the housing 10. The female coaxial connector 2 includes a female housing 20 having a mating tubular portion at the front into which the hood portion 13 is inserted, and a retainer 50 attached to the housing 20. Although not shown in the figure, the connector structure 100 further has a male frame that holds the male coaxial connector 1 and a female frame that holds the female coaxial connector 2, and a locking structure provided on the male frame and the female frame enables the two coaxial connectors 1, 2 to be maintained in a mated state.

[0017] 2, in the connector structure 100, the retainer 50 attached to the male housing 10 and the retainer 50 attached to the female housing 20 have the same structure, making it possible to standardize parts. The following mainly describes the male coaxial connector 1.

[0018] (housing) Fig. 3 is a partially cutaway side view of the coaxial connector 1. As shown in Figs. 2 and 3, the housing 10 of the coaxial connector 1 has a shape in which a substantially cylindrical hood portion 13 protrudes forward from the front surface of a substantially rectangular parallelepiped male main body portion 11. Housing 10 may be made, for example, of an insulating synthetic resin. As shown in Fig. 3, a terminal accommodating portion 15 is formed inside housing 10, penetrating male main body portion 11 and hood portion 13 in the front-rear direction. A terminal T100 connected to an end of a coaxial cable C1 is inserted from the rear and accommodated in terminal accommodating portion 15.

[0019] As shown in Figure 3 etc., a cantilevered lance 17 with its front end as a free end and capable of bending in the vertical direction is formed on the underside of male main body portion 11 so as to protrude into terminal accommodating portion 15 in its natural state. Also, a retainer insertion hole 19 is formed on the top surface of male main body portion 11, penetrating the top wall of terminal accommodating portion 15. A pair of retainer locking holes 18 are formed on the sides of retainer insertion hole 19 in male main body portion 11, penetrating the left and right walls of terminal accommodating portion 15 (see Figure 10).

[0020] (Coaxial cable) The coaxial cables C1 and C2 may be, for example, a coaxial cable including an inner conductor, a dielectric disposed around the outer periphery of the inner conductor, an outer conductor made of a braided wire or the like disposed around the outer periphery of the dielectric, and an insulator covering the outer periphery of the outer conductor. The coaxial terminal connected to the terminated coaxial cable is, for example, configured to include a center contact connected to the inner conductor, an insulator holding the center contact, an outer contact holding the insulator, and a metal sleeve crimped to the outer conductor.

[0021] (Terminal) FIG. 4 shows a male terminal T100 received in the coaxial connector 1, and FIG. 5 shows a female terminal T200 received in the coaxial connector 2. As shown in FIG. The terminals T100, T200 each have a crimping portion T111, T211 crimped to the coaxial cables C1, C2 at the base end, a cylindrical tip portion T121, T221 connected to a mating terminal at the tip end, and a flange portion T131, T231 located in front of the crimping portion T111, T211 and protruding in the outer circumferential direction. A front flange portion T132, T232 is provided between the flange portion T131, T231 and the tip portion T121, T221, protruding to have approximately the same outer diameter as the flange portion T131, T231.

[0022] The tip portion T221 of the female terminal T200 is formed so as to fit almost tightly around the outer periphery of the tip portion T121 of the male terminal T100. When the coaxial connector 1 that houses the male terminal T100 in the correct position and the coaxial connector 2 that houses the female terminal T200 in the correct position are mated, the tip portion T121 of the male terminal T100 is inserted into the tip portion T221 of the female terminal T200, and for example, center contacts held inside the tip portions T121 and T221 come into contact with each other, electrically connecting both terminals T100 and T200.

[0023] The crimping portions T111, T211 are crimped to the coaxial cables C1, C2 so that the outer periphery of the cross section is polygonal by fitting the terminal fittings to the outer periphery of the terminated coaxial cables C1, C2 and then tightening the rear side of the flange portions T131, T231. In this embodiment, the crimping portions T111, T211 are crimped to the coaxial cables C1, C2 so that the outer periphery of the cross section is polygonal. In this embodiment, the crimping portion T111 of the male terminal T100 and the crimping portion T211 of the female terminal T200 have the same outer shape.

[0024] When the crimping portions T111, T211 are formed by crimping as described above, it is difficult to crimp the terminals up to the very boundary with the flange portions T131, T231. For this reason, as shown in Figures 4 and 5, in the terminals T100, T200, incomplete crimping portions T141, T241 that are smaller in diameter than the flange portions T131, T231 but larger in diameter than the crimping portions T111, T211 are formed between the flange portions T131, T231 and the crimping portions T111, T211.

[0025] (Retainer) 6 to 8 show the retainer 50 to be attached to the male housing 10 and the female housing 20. The white arrows in FIG. 6 to 8 indicate the insertion direction of the retainer 50. As shown in FIG. 6 and other figures, the retainer 50 has a main body 51, a pair of legs 53 protruding in a bifurcated shape from the main body 51 in the insertion direction of the retainer 50, i.e., downward, a pair of arms 55 formed in a cantilever shape with the lower end as a free end on the left and right sides of the main body 51, and a pair of waists 57 protruding left and right from the main body 51 below the lower end of the arms 55. The arms 55 have a locking claw 55A protruding in the left and right directions at the lower end, which is the free end. As shown in FIG. 7 and other figures, the upper surface of the locking claw 55A is a substantially horizontal surface, and the lower surface is an inclined surface that expands outward toward the upper side.

[0026] 8 and other figures, the main body 51, the legs 53, and the waist 57 are formed so that their front surfaces are substantially flush with one another. This front surface is the abutment portion 50A, and when the retainer 50 is attached to the locking position as described below, it abuts against the rear surface of the flange portion T131 of the terminal T100 accommodated in the correct position (see FIG. 9B).

[0027] As shown in Fig. 6 and Fig. 7, the lower surface of the retainer 50 located between the pair of legs 53 and on the insertion side is formed with a fitting portion 53A having a shape that is fitted almost tightly to the outer periphery including at least one corner of the crimping portion T111. Also, as shown in Fig. 6 and Fig. 8, the front side of the fitting portion 53A is cut out so as to retreat to the outer periphery side of the terminal T100 when the fitting portion 53A is attached to the outer periphery of the crimping portion T111, and a recess 53B is formed. The recess 53B is formed so that its dimension in the front-rear direction is approximately equal to or slightly larger than the dimension from the rear surface of the flange portion T131 to the front end of the crimping portion T111. Also, the depth dimension of the recess 53B is larger than the height dimension from the outer periphery of the crimping portion T111 to the outer periphery of the incomplete crimping portion T141 and is approximately equal to or smaller than the height dimension to the outer periphery of the flange portion T131. Furthermore, as shown in Figs. 6 and 8, the front surface of the protruding end of the leg portion 53, that is, the end portion on the insertion direction side of the abutting portion 50A, is formed with an inclined portion 53C that inclines backward as it extends downward. The retainer 50 has a symmetrical structure with respect to a center plane P in the front-rear direction shown in Fig. 8. That is, the rear surface of the retainer 50 has the same shape as the front surface shown in Fig. 7.

[0028] (Attaching the retainer) Next, how the retainer 50 is attached to the housing 10 at the locking position will be described with reference to FIGS. 9A to 11. FIG. 9A shows a state in which the retainer 50 is inserted from the retainer insertion hole 19 when the terminal T100, which is inserted from the rear into the terminal accommodating portion 15, is in a half-inserted position not reaching the normal position. In this state, the lance 17 on the lower surface of the housing 10 abuts against the flange T131 and is bent downward. As shown by the outline arrow in FIG. 9A, the retainer 50 is inserted downward from the leg 53 while the abutment portion 50A on the front surface is aligned with the front opening edge of the retainer insertion hole 19. When the protruding end of the leg 53 enters the inside of the terminal accommodating portion 15, first, the inclined portion 53C formed on the front surface of the protruding end of the leg 53 abuts against the rear corner portion of the flange T131 of the terminal T100 in the half-inserted position. If the retainer 50 is pushed in like this, as the retainer 50 moves downward, the flange portion T131 is pressed forward by the inclined portion 53C as indicated by the black arrow in FIG. 9A, and the terminal T100 moves to the normal position.

[0029] 9B, when the retainer 50 is pushed in and attached to the locking position, the flange T131 moves forward of the front end of the lance 17, and the lance 17 is released and recovers and deforms to be located behind the flange T131, thereby restricting the rearward movement of the flange T131 and, by extension, the terminal T100. At the same time, the abutment portion 50A on the front surface of the retainer 50 abuts against the rear surface of the flange T131, so that the abutment portion 50A functions as a stopper, doubly restricting the rearward movement of the terminal T100.

[0030] 10, the locking position is the position where the retainer 50 is pushed in until the waist portion 57 of the retainer 50 abuts against the lower opening edge of the retainer locking hole 18. When the retainer 50 is pushed in to the locking position, the arm portion 55, which has passed through the retainer insertion hole 19 while being flexed and deformed in the central axis direction, recovers and deforms, and the upper surface of the locking claw 55A abuts against the upper opening edge of the retainer locking hole 18. This prevents the retainer 50 from slipping out upward and locks it to the housing 10.

[0031] Fig. 11 is a partially enlarged view of the vicinity of the retainer 50 attached at the locking position shown in Fig. 3. As shown in Fig. 10 and Fig. 11, when the retainer 50 is attached at the locking position, the fitting portion 53A formed on the lower surface between the pair of legs 53 is fitted almost tightly to the outer periphery of the crimping portion T111 of the terminal T100. By fitting the fitting portion 53A to the outer periphery including at least one corner of the crimping portion T111, the fitting portion 53A functions as a rotation preventing portion (stopper) and restricts the rotation of the terminal T100 when an external force is applied to the coaxial cable C1.

[0032] 11, in the retainer 50, the recess 53B is disposed opposite to the incomplete crimped portion T141 formed between the flange portion T131 and the crimped portion T111 of the terminal T100. The recess 53B functions as a relief portion for the incomplete crimped portion T141, so that the retainer 50 can be pushed into the locking position and attached without interference between the incomplete crimped portion T141 and the fitting portion 53A.

[0033] (Effects of the embodiment) Next, the effects of this embodiment will be described. The coaxial connector 1 of this embodiment includes a housing 10 having a terminal accommodating portion 15 therein into which a terminal T100 connected to a coaxial cable C1 is inserted from the rear, and a retainer 50 attached to the housing 10. The terminal T100 has a crimping portion T111 crimped to form a polygonal outer periphery, and a flange portion T131 located in front of the crimping portion T111 when the terminal T100 is inserted into the terminal accommodating portion 15 and formed to protrude in the outer periphery direction beyond the crimping portion T111. The housing 10 has a terminal T100 extending in a direction intersecting with the insertion direction of the terminal T100. A retainer insertion hole 19 is formed through the wall of the accommodating portion 15, and the retainer 50 has, when the terminal T100 is accommodated in the correct position in the terminal accommodating portion 15 and the retainer 50 is inserted through the retainer insertion hole 19 and attached to the locked position, an engagement portion 53A that is attached to the outer periphery including at least one corner of the crimping portion T111 of the terminal T100, a contact portion 50A that abuts against the flange portion T131 of the terminal T100 from behind, and a recess 53B between the engagement portion 53A and the abutment portion 50A, where the engagement portion 53A is set back toward the outer periphery of the terminal T100.

[0034] According to the coaxial connector 1 of this embodiment, the fitting portion 53A functions as a rotation prevention portion to restrict the rotation of the terminal T100, and the abutting portion 50A functions as a slip-out prevention portion to prevent the terminal T100 from slipping out backward. Since the retainer 50 has both the fitting portion 53A and the abutting portion 50A, the terminal T100 can be prevented from slipping out and from rotating simply by attaching the retainer 50. Here, in a terminal in which the crimping portion T111 is formed by tightening the rear side of the flange portion T131 of the terminal fitting fitted around the coaxial cable C1, crimping is performed while gradually reducing the compressive stress of the coaxial cable C1 toward the boundary portion with the flange portion T131 in order to prevent breakage at the crimping portion T111. Therefore, an incomplete crimping portion T141 (so-called bell mouth) having a diameter larger than that of the crimping portion T111 is formed between the flange portion T131 and the crimping portion T111. In this regard, in the above configuration, the recess 53B is provided between the abutment portion 50A of the retainer 50 and the fitting portion 53A, and the recess 53B functions as an escape portion for the incomplete crimped portion T141, so that the fitting portion 53A can be fitted onto the outer periphery of the crimped portion T111 without being interfered with by the incomplete crimped portion T141. As a result, it is possible to provide a coaxial connector 1 with a simple configuration that can hold the terminal T100 in the correct position in the terminal accommodating portion 15 while restricting rotation.

[0035] In the coaxial connector 1 of this embodiment, the retainer 50 has a pair of legs 53 that protrude in a bifurcated manner toward the direction in which the retainer 50 is inserted into the housing 10, and an abutment portion 50A is formed on the front surface of the legs 53, and an engagement portion 53A is formed on the surface facing the insertion direction between the pair of legs 53, and the front side of the engagement portion 53A is cut out so as to retreat toward the outer periphery of the terminal T100 to form a recess 53B.

[0036] In the coaxial connector 1 of this embodiment, the retainer 50 has an inclined portion 53C inclined rearward toward the insertion direction at the end of the abutting portion 50A of the retainer 50 in the insertion direction. When the retainer 50 is inserted through the retainer insertion hole 19 with the terminal T100 in a half-inserted position rearward of the normal position, the insertion-side end of the abutment portion 50A first abuts against the flange portion T131 protruding in the radial direction. According to the coaxial connector 1 of this embodiment, this end is provided with an inclined portion 53C inclined backward, so that when the retainer 50 is further pushed in, the flange portion T131 is pressed forward by the inclined portion 53C, and the terminal T100 moves forward to the normal position. In this way, the terminal T100 that was in the half-inserted position can be moved to the normal position and accommodated simply by inserting the retainer 50 and pushing it into the locking position.

[0037] In the coaxial connector 1 of this embodiment, the retainer 50 is symmetrical with respect to the center plane P in the front-rear direction when attached to the housing 10. Such a coaxial connector 1 improves work efficiency by allowing installation work to be performed without considering the front or rear of the retainer 50. In addition, since the connector can be applied to both male and female coaxial connectors 1 and 2 that respectively accommodate male terminals T100 and female terminals T200 that are connected opposite each other, parts can be standardized and parts management becomes easier.

[0038] <Other embodiments> The present disclosure is not limited to the embodiments described above and in the drawings, and for example, the following embodiments are also included in the technical scope of the technology disclosed in this specification.

[0039] (1) In the above embodiment, the coaxial connector is described as accommodating one terminal, but is not limited thereto. In a coaxial connector in which one retainer is attached to a housing accommodating multiple terminals, the retainer can be provided with multiple abutment portions (anti-slip portions), fitting portions (anti-rotation portions), and recesses (relief portions) to prevent the multiple terminals from slipping out and rotating.

[0040] (2) The housings described in the above embodiments are merely examples, and may be formed in shapes different from those described above. The coaxial connector is not limited to one that forms a connector structure having male and female connectors. [Explanation of symbols]

[0041] 1,2…Coaxial connector 10. Housing 11…Male body part 13…Hood section 15...Terminal housing 17…Lance 18...Retainer locking hole 19…Retainer insertion hole 20. Housing 50…Retainer 50A…Contact part 51...Main body 53…legs 53A…Fitting part 53B…Concave 53C…Slope part 55...Arm 55A…Latching claw 57...lower back 100...Connector structure C1, C2: Coaxial cable T100, T200...Terminals T111, T211... Crimping section T121, T221...Tip T131,T231…Trim part T132, T232…Front flange T141, T241...Incomplete crimping section P...Center plane (of the retainer) in the front-rear direction

Claims

1. a housing having a terminal accommodating portion provided therein into which a terminal connected to a coaxial cable is inserted from the rear; a retainer attached to the housing; The terminal is A crimped portion formed by crimping so that the outer periphery of the cross section forms a polygon; a flange portion located on a front side of the crimping portion in a terminal insertion direction when the terminal is inserted into the terminal accommodating portion and formed so as to protrude in an outer circumferential direction beyond the crimping portion, The housing has a retainer insertion hole penetrating a wall of the terminal accommodating portion in a direction intersecting with an insertion direction of the terminal, When the terminal is accommodated in the proper position of the terminal accommodating portion and the retainer is inserted into the retainer insertion hole and attached to the locking position, a fitting portion attached to an outer periphery including at least one corner of the crimping portion of the terminal; a contact portion that contacts the flange portion of the terminal from behind; a recess between the fitting portion and the abutment portion, the fitting portion being recessed toward the outer periphery of the terminal;

2. 2. The coaxial connector according to claim 1, wherein the retainer has an inclined portion inclined rearward toward the insertion direction at an end of the abutting portion on a side in a direction toward which the retainer is inserted.

3. 3. The coaxial connector according to claim 1, wherein the retainer is symmetrical about a center plane in the front-rear direction when attached to the housing.

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