Connector

Abstract

To provide a connector which prevents a connection portion from being removed easily.SOLUTION: A connector C includes: a shell 3 having a flange part 32; a body 4 supported at a radial inner side of the shell 3; a terminal 5 supported by the body 4 and extending along an axial direction of the shell 3 at the radial inner side of the shell 3; a housing 1 having a contact part which contacts with the flange part 32 and a cylindrical shell insertion part 13 into which the shell 3 is inserted; and a cylindrical attachment member 2 having a diameter which gradually reduces toward an axis side of the shell insertion part 13 in a direction toward the other axial side of the shell 3, having engagement parts 23 each configured to engage with an annular groove part 33 provided on an outer peripheral surface 31A of the shell 3, and being provided on an inner wall part of the shell insertion part 13.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] Conventionally, there is known an electrical device in which a coaxial connector is attached to a housing and used as an input / output connector. An example of a technique related to such a coaxial connector is described in Patent Document 1, the source of which is shown below.

[0003] Patent Document 1 describes a coaxial connector holding structure. In this coaxial connector holding structure, a cylindrical holding member is provided that is inserted into a housing. The holding member has an outer flange that protrudes radially outward at one axial end, an inner flange that protrudes radially inward at the other axial end, an outer tongue that protrudes radially outward beyond the outer circumferential surface at the axial center, and an inner tongue that protrudes radially inward beyond the inner circumferential surface at the axial center. A coaxial connector is inserted into such a holding member from one axial end. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 2-16583 Summary of the Invention [Problem to be solved by the invention]

[0005] The coaxial connector holding structure described in Patent Document 1 allows the coaxial connector to be removed from the housing by releasing the lock of the inner tongue piece or the outer tongue piece of the holding member using a lock release member or a jig. This is useful, for example, when the cable or coaxial connector is installed incorrectly. However, when the cable or coaxial connector is installed properly and does not need to be removed, such a removable function is unnecessary, and in some cases, there is a risk of it being removed maliciously.

[0006] Therefore, there is a demand for a connector whose connection portion cannot be easily removed. [Means for solving the problem]

[0007] The characteristic configuration of the connector of the present invention is that it comprises a shell made of a cylindrical conductive material and having a flange portion protruding radially outward from the outer peripheral surface on one axial side, a body made of an insulating material supported on the radial inside of the shell, a terminal supported by the body and extending along the axial direction of the shell on the radial inside of the shell, a housing having an abutment portion abutting the flange portion and a cylindrical shell insertion portion through which the shell is inserted, and a cylindrical mounting member provided on the inner wall portion of the shell insertion portion, which gradually reduces in diameter toward the axial center side of the shell insertion portion as it moves toward the other axial side of the shell, and has a locking portion that engages with an annular groove portion provided on the outer peripheral surface of the shell.

[0008] With this characteristic configuration, the shell, body, and terminals can be configured to be enclosed within the housing, making it difficult to access the shell, body, and terminals from the outside. In addition, the mounting member has an engagement portion that engages with a groove on the outer peripheral surface of the shell, which increases positioning accuracy and makes it difficult to remove. Therefore, it is possible to provide a connector in which the connection parts of the shell, terminals, etc. cannot be easily removed from the housing.

[0009] It is also preferable that movement of the shell in the other axial direction is restricted by the abutment between the flange portion and the abutment portion, and movement of the shell in the one axial direction is restricted by the engagement of the engagement portion with the groove portion.

[0010] With this configuration, it is possible to prevent the shell from being easily removed. Also, since the terminals are supported by the shell via the body, it is possible to prevent the terminals and the shell from being easily removed from the housing.

[0011] It is also preferable that a first end of the mounting member on one axial side abuts a seat formed on the inner wall portion of the shell insertion portion, and a second end of the mounting member on the other axial side engages with an engaging portion formed on the other axial side of the inner wall portion of the shell insertion portion.

[0012] With this configuration, the accuracy of positioning the mounting member relative to the housing can be improved, and the mounting member can be made less likely to come loose from the housing.

[0013] It is also preferable that a circumferential portion of the mounting member is cut from a first end on one axial side to a second end on the other axial side.

[0014] With this configuration, when the mounting member is inserted into the shell insertion portion, the diameter of the mounting member can be reduced, allowing it to easily enter the shell insertion portion. Also, after the mounting member is inserted into the shell insertion portion, the mounting member elastically expands in diameter, making it difficult for the mounting member to come out of the shell insertion portion.

[0015] It is also preferable that the mounting member has four of the locking portions arranged along the circumferential direction, and each of the four locking portions is formed so as to face another locking portion among the four locking portions along the radial direction that is different from two of the adjacent locking portions.

[0016] With this configuration, the locking portions can be locked to the shell from opposite sides along the radial direction, thereby enabling the mounting member to properly support the shell.

[0017] It is also preferable that the engaging portion extends from a base end portion on one axial side of the mounting member toward the other axial side, and that the other axial side is cut out and raised radially inward from the base end portion.

[0018] With this configuration, the locking portion can be formed by cutting and raising (cutting and raising process). Since such cutting and raising can be formed by sheet metal processing, it is possible to easily form the locking portion.

[0019] It is also preferable that the mounting member has at least three or more of the locking portions along the circumferential direction, and is formed so that the center of a polygon having vertices at the positions where each of the locking portions is located coincides with the center of the shape of the outer circumferential surface of the mounting member when viewed in the axial direction.

[0020] With this characteristic configuration, the mounting members are evenly positioned relative to the shell, so that even if a force is applied in the direction of removing the shell from the shell insertion portion, the force is distributed evenly to each of the multiple engagement portions, preventing damage to the engagement portions. [Brief description of the drawings]

[0021] [Figure 1] FIG. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a partial vertical cross-sectional view of the connector. [Figure 4] 11A and 11B are diagrams illustrating the attachment of the attachment member to the housing. [Diagram 5] 11A and 11B are diagrams illustrating the attachment of the attachment member to the housing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] The connector of the present invention will be described below. The components of the embodiments described below can be combined with each other as long as they are not inconsistent. The materials, shapes, numbers, arrangements, etc. constituting the components in each aspect of the embodiments described below are merely examples, and can be changed as desired as long as the same functions can be realized.

[0023] The connector C according to this embodiment will be described with reference to Figs. 1 to 5. Figs. 1 and 2 are exploded perspective views of the connector C. Fig. 3 is a partial vertical cross-sectional view of the connector C. Figs. 4 and 5 are diagrams for explaining the attachment of the attachment member 2 to the housing 1.

[0024] 1 to 5, an axial direction Z is shown as a direction along an axis X of the shell 3. For ease of understanding, in the following description, one side in the axial direction Z (one axial side) is referred to as a Z1 side, and the other side in the axial direction Z (other axial side) is referred to as a Z2 side.

[0025] As shown in FIGS. 1 and 2, in this embodiment, a connector C is configured as a receptacle connector, and includes a housing 1, a mounting member 2, a shell 3, a body 4, and terminals 5.

[0026] The housing 1 corresponds to a housing of the receptacle connector. The housing 1 includes a base portion 1A and a connection portion 1B. In this embodiment, the base portion 1A is configured to have a pentagonal shape in a plan view (as viewed in the axial direction Z). The base portion 1A has a wall portion 1C standing along the Z direction, and the area surrounded by the wall portion 1C is configured to be hollow. The base portion 1A has a through hole 1E formed on a top surface 1D thereof, which communicates with a shell insertion portion 13 of the connection portion 1B.

[0027] The outer shape of the connection part 1B is smaller than that of the base part 1A, and is integrally formed with the base part 1A when placed on the base part 1A. As shown in Figs. 1 and 2, the housing 1 has a shell insertion part 13 and an abutment part 14. As shown in Figs. 1 and 3, the shell insertion part 13 is cylindrical. A shell accommodating space 11 is formed radially inside the shell insertion part 13 (see Figs. 4 and 5). The shell accommodating space 11 is a hollow space into which the mounting member 2 is fitted. The shell 3 is inserted along the axial direction Z into the shell insertion part 13 with the mounting member 2 fitted therein. The abutment part 14 is provided at the opening end of the housing 1 on the Z1 side, and an abutment surface 12 is formed on the surface of the abutment part 14 on the Z1 side. The abutment surface 12 is a part of the top surface 1D. In this embodiment, the abutment surface 12 is formed by a surface perpendicular to the axis X. Of course, the contact surface 12 is not limited to a surface perpendicular to the axis X, and may have an inclination within a predetermined range with respect to the direction perpendicular to the axis X (radial direction). The contact surface 12 is contacted by the flange portion 32 of the shell 3.

[0028] In this embodiment, the shell insertion portion 13 has at least one first engagement portion (an example of an "engagement portion") 111a protruding radially inward from an inner wall (an example of an "inner wall portion") 111 extending along the axial direction Z, and at least one second engagement portion (an example of a "seat portion") 111b arranged on the Z1 side with respect to the first engagement portion 111a. In this embodiment, the shell insertion portion 13 has four first engagement portions 111a and four second engagement portions 111b, but the numbers of the first engagement portions 111a and the second engagement portions 111b are not limited to four, and the circumferential length is also not limited.

[0029] Moreover, the first engaging portion 111a and the second engaging portion 111b do not need to be formed continuously in the circumferential direction of the inner wall 111 of the shell insertion portion 13, and it is possible to form at least one each of the first engaging portion 111a and the second engaging portion 111b and arrange them so as not to overlap each other when viewed in the Z direction. This allows the mold for forming the first engaging portion 111a and the second engaging portion 111b to be configured in a simple shape. Therefore, so-called falling pins or slide structures for forming undercuts are not required.

[0030] The housing 1 may be made of an insulating material or a metallic material, or may be made of an insulating material whose surface is covered with a metallic material by plating or vapor deposition.

[0031] The mounting member 2 is provided on the inner wall 111 of the shell insertion portion 13. The mounting member 2 is formed in a cylindrical shape, and the shape of the outer circumferential surface 24 as viewed in the axial direction Z can be formed to be similar to the shape of the inner wall 111 of the shell insertion portion 13. The outer diameter of the mounting member 2 may be approximately equal to, slightly larger than, or slightly smaller than the inner diameter of the shell insertion portion 13. It is preferable that the mounting member 2 overlaps at least a portion of the first engagement portion 111a and at least a portion of the second engagement portion 111b as viewed in the axial direction Z.

[0032] 1 and 2, a portion of the mounting member 2 in the circumferential direction is cut from a first end 21 on the Z1 side to a second end 22 on the Z2 side. That is, the mounting member 2 is formed into a C-shape when viewed in the axial direction Z. Such a mounting member 2 can be formed by performing sheet metal processing on a metal material. As a result, the mounting member 2 is configured to be contractible in diameter, and is configured to be elastically deformed when contracted in diameter, thereby reducing the outer diameter so as not to overlap with the first engagement portion 111a and the second engagement portion 111b when viewed in the axial direction Z.

[0033] Since the mounting member 2 can be reduced in diameter so as not to overlap the first engagement portion 111a and the second engagement portion 111b as viewed in the Z direction by elastically deforming radially inward, it may be inserted from the Z2 side or from the Z1 side of the shell insertion portion 13. Furthermore, by elastically deforming radially inward, the mounting member 2 does not damage the first engagement portion 111a and the second engagement portion 111b in the process of insertion into the shell insertion portion 13.

[0034] The mounting member 2 has at least one locking piece (an example of a "locking portion") 23. The locking piece 23 gradually narrows in diameter toward the axial center side of the shell insertion portion 13 as it approaches the other axial side of the shell 3, and is locked into an annular groove portion 33 provided on the outer circumferential surface 31A of the shell 3. The other axial side of the shell 3 is the Z2 side in this embodiment. The axial center side of the shell insertion portion 13 corresponds to the axial center X side of the shell 3. The structure of the shell 3 will be described later. As shown in Figs. 4 and 5, the locking piece 23 extends inclined radially inward of the shell 3 with respect to the axial direction Z between a first end (an example of a "first end") 21 on the Z1 side and a second end (an example of a "second end") 22 on the Z2 side.

[0035] That is, the locking piece 23 extends from a base end 23A on the Z1 side of the mounting member 2 toward the Z2 side, and the Z2 side is cut and raised radially inward from the base end 23A. As shown in Fig. 3, the locking piece 23 has a locking end 231 on the Z1 side. Because the locking piece 23 is cut and raised radially inward, deformation or damage to the locking end 231 due to interference or the like during the process of inserting the shell 3 into the shell insertion portion 13 can be prevented.

[0036] As shown in Fig. 1 and Fig. 2, in this embodiment, the mounting member 2 has four locking pieces 23 along the circumferential direction. Each of the four locking pieces 23 is formed so as to face another locking piece 23 different from the two adjacent locking pieces 23 among the four locking pieces 23 along the radial direction. In other words, a predetermined locking piece 23 among the four locking pieces 23 is formed so as to face one of the remaining three locking pieces 23 along the radial direction. In this case, the intervals between the predetermined locking piece 23 and each of the two locking pieces 23 adjacent to the predetermined locking piece 23 along the circumferential direction may be equal or may not be equal.

[0037] The mounting member 2 does not have a portion where the end on the Z1 side and / or Z2 side is bent perpendicular to the Z direction, so it can be formed by sheet metal processing a metal material whose material width dimension is the distance between the first end 21 and the second end 22. Therefore, a material width longer than the length in the Z direction is not required. In addition, the mounting member 2 is disposed inside the shell insertion portion 13, and the length in the Z direction is shorter than the length of the shell 3 in the Z direction, so that the use of the mounting member 2 can prevent the length of the connector C in the Z direction from becoming longer.

[0038] The shell 3 is formed of a cylindrical conductive material, and at least a portion of it is accommodated in the shell accommodation space 11 of the housing 1. As shown in Fig. 1 and Fig. 3, the shell 3 has a cylindrical portion 31 extending along the axial direction Z, a flange portion 32 protruding radially outward from an outer circumferential surface 31A on the Z1 side of the cylindrical portion 31, and a groove portion 33 provided on the outer circumferential surface 31A of the cylindrical portion 31 on the Z2 side of the flange portion 32. The flange portion 32 has an abutment portion 321 on the Z2 side. The groove portion 33 has a locking portion 331 on the Z2 side.

[0039] The shell 3 is open on the Z2 side, and a connection space 34 is formed on the radially inner side. Also, the shell 3 is formed with a body housing space 35 on the Z1 side, which communicates with the connection space 34 via a small diameter portion 36 (see Figs. 1 to 3). The shell 3 can be formed by lathe processing. This allows the flange portion 32 and the groove portion 33 to be formed all around the outer circumferential surface 31A. Also, since the groove portion 33 can be formed all around the outer circumferential surface 31A of the shell 3, even if the mounting member 2 rotates in the shell housing space 11 of the housing 1 with the Z direction as the rotation axis, the locking end 231 can abut against the locking portion 331 of the groove portion 33. Therefore, the mounting member 2 can be inserted in any direction with the Z direction as the rotation axis with respect to the shell housing space 11, improving workability.

[0040] Furthermore, when the shell 3 is formed by lathe processing, it is possible to easily adjust (i.e., while maintaining coaxiality) the characteristic impedance, which is determined by the material properties and shape of the body 4, the shape of the terminals 5, and the distance between the shell 3 and the terminals 5, etc. When formed by sheet metal processing, there is a risk that noise will be radiated from the joints that form the cylindrical shape, degrading the EMC characteristics, but with lathe processing, it is possible to form without including joints that radiate noise that degrades the EMC characteristics, and therefore it is advantageous in terms of EMC characteristics.

[0041] The body 4 is made of an insulating material, and is supported by the shell 3 on the radially inner side of the shell 3. In this embodiment, at least a portion of the body 4 is accommodated in a body accommodating space 35 of the shell 3.

[0042] The terminal 5 is made of a conductive material and is supported by the body 4. As described above, the body 4 is supported by the shell 3. Therefore, the terminal 5 is supported by the shell 3 via the body 4.

[0043] The terminal 5 extends along the Z direction of the shell 3 on the radially inner side of the shell 3. The terminal 5 has a first connection portion 51, a second connection portion 52, and a main body portion 53. The first connection portion 51 is exposed on the Z2 side of the body 4 and is disposed in the connection space 34 of the shell 3. The second connection portion 52 is exposed on the Z1 side of the body 4, and the main body portion 53 is housed in the body 4. For example, when the body 4 is formed by insert molding, the main body portion 53 can be integrally molded with the body 4.

[0044] The shell 3 and the terminal 5 may be a coaxial connector in which the shell 3 serves as a coaxial shield and the terminal 5 serves as a center pin.

[0045] Next, a method of attaching the shell 3 incorporating the body 4 and the terminals 5 to the housing 1 using the attachment member 2 will be described with reference to FIGS.

[0046] First, the mounting member 2 is inserted into the shell insertion portion 13 of the housing 1 from the Z2 side. At this time, the mounting member 2 is inserted into the shell insertion portion 13 from the first end 21 side (see FIG. 4). The mounting member 2 is inserted into the shell insertion portion 13 in a state in which the diameter of the mounting member 2 is reduced by elastic deformation so as not to overlap with the first engagement portion 111a when viewed in the Z direction. As a result, the mounting member 2 inserted into the shell insertion portion 13 elastically attempts to return to its original shape, with the outer circumferential surface 24 coming into contact with the first engagement portion 111a. In this state, when the mounting member 2 is further inserted toward the rear side and the second end 22 passes over the first engagement portion 111a and reaches the Z1 side of the first engagement portion 111a, the mounting member 2 returns to its original shape (expands in diameter) due to its elasticity and is fitted into the shell insertion portion 13 between the first engagement portion 111a and the second engagement portion 111b in the Z direction of the shell insertion portion 13, as shown in Figure 5.

[0047] The mounting member 2 fitted into the shell insertion portion 13 has its first end 21 abutted against the second engagement portion 111b to restrict movement toward the Z1 side, and its second end 22 engaged with the first engagement portion 111a to restrict movement toward the Z2 side, thereby positioning the mounting member 2 in the Z direction.

[0048] Moreover, the terminal 5 is integrally formed with the body 4 by insert molding so as to encapsulate the main body portion 53. The body 4 is inserted together with the terminal 5 into the shell 3 from the Z1 side, and at least a portion of the body 4 is accommodated in the body accommodating space 35. As a result, at least a portion of the first connection portion 51 of the terminal 5 is supported with respect to the shell 3 so as to be disposed in the connection space 34 of the shell 3.

[0049] As shown in FIG. 3, a small diameter portion 36 smaller than the inner diameter of the shell 3 on the Z1 side may be provided in the axial center of the shell 3, and an entry portion 41 for entering the small diameter portion 36 may be provided on the Z2 side of the body 4. This allows the entry portion 41 to be pressed into the small diameter portion 36 to support the body 4 relative to the shell 3. In addition, in order to make it easier for the entry portion 41 to enter the small diameter portion 36, the inner diameter of the small diameter portion 36 may be gradually reduced from the Z1 side to the Z2 side. This allows the small diameter portion 36 to function as a guide portion for guiding the entry portion 41 to the inner side in the entry direction. Note that the support of the body 4 relative to the shell 3 is not limited to the small diameter portion 36 or the entry portion 41, and the body 4 may be supported by being pressed into the shell insertion portion 13, or may be supported by other methods. The terminal 5 may be pressed into the body 4 formed as a single unit by injection molding, so that the main body portion 53 is supported by the body 4.

[0050] With the connection space 34 disposed on the Z2 side with respect to the body accommodation space 35, the shell 3 with the body 4 supported together with the terminals 5 is inserted into the shell insertion portion 13 from the Z1 side of the housing 1 (see FIG. 3 ) into which the mounting member 2 is fitted, until the abutting portion 321 of the shell 3 abuts against the abutting surface 12 of the body 4. At this time, since the locking piece 23 of the mounting member 2 extends at an inclination toward the radially inner side (the axis X side), the locking end 231 is disposed in the groove portion 33 of the shell 3, and the locking piece 23 of the mounting member 2 is locked to the groove portion 33 of the shell 3. As a result, the abutting portion 321 abuts against the abutting surface 12 of the housing 1, so that the movement of the shell 3 toward the Z2 side is restricted, and the locking portion 331 of the groove portion 33 of the shell 3 abuts against the locking end 231 of the locking piece 23 of the mounting member 2, so that the movement of the shell 3 toward the Z1 side is restricted. In this manner, the shell 3, on which the body 4 is supported together with the terminals 5, is attached to the housing 1 using the attachment member 2. Since the locking end 231 of the locking piece 23 is positioned in the groove 33 of the shell 3 in this manner, it is possible to insert a member for releasing the lock, such as a jig, so that the locked state in which the locking end 231 and the locking portion 331 are in contact with each other cannot be released. The attachment member 2 can also be inserted from the Z1 side of the shell accommodating space 11, from the first end 21 side.

[0051] Furthermore, when the shell 3 is inscribed in at least one of the first engaging portion 111a and the second engaging portion 111b, the shell 3 does not tilt and cause a malfunction between the shell 3 and the connector (referred to as the "mating connector") to be mated with the connector C. It is also possible to prevent the contact between the shell 3 and the shielding material of the mating connector from becoming unstable, and the coaxiality of the electrical connection between the shell 3 and the shielding material of the mating connector from decreasing, which affects the return path and thus deteriorates the EMC characteristics.

[0052] At this time, the mounting member 2 is fitted inside the inner wall 111 of the shell insertion portion 13 and at the same time fitted outside the cylindrical portion 31 of the shell 3, and cannot elastically deform radially inward. Therefore, the fixation in the Z direction cannot be released, and it is possible to prevent the shell 3 from being removed from the housing 1.

[0053] The shield case 6 is formed of a conductive material such as metal, and is provided so as to electromagnetically shield the space surrounded by the wall 1C and the top surface 1D of the base 1A from the outside of the shield case 6. The shield case 6 is provided with an opening 6A having the same axis as the axis of the through hole 1E provided in the top surface 1D of the base 1A and an inner diameter larger than that of the through hole 1E. When the shell 3 is attached to the housing 1, as shown in FIG. 3, a part of the shield case 6 may be sandwiched between the housing 1 and the flange 32 of the shell 3, and the shell 3 may be attached to the housing 1 together with the shield case 6 in a state in which the flange 32 and the shield case 6 are electrically connected. The connector C may also be configured without using the shield case 6.

[0054] The connector C described above can be mounted on, for example, a board provided in an electronic device. In this case, the connector C can be used as a board connector, and a coaxial cable can be connected to the board via the connector C. The connector C can be used to transmit image signals and audio signals, supply power, and the like by connecting such a coaxial cable. In addition, since the connector C can be configured compactly, it can be used, for example, to transmit image signals and audio signals in a vehicle. In this way, the connector C can be used to configure a system that inputs and outputs signals between an electronic device and the outside via a coaxial cable, so it can be used in a system that transmits high-frequency signals and high-speed digital signals. For example, it can be used in an in-vehicle camera system that transmits high-definition video signals.

[0055] Other embodiments In the above embodiment, the connector C may be a multi-pole connector having a plurality of terminals 5. Also, it may be one of a plurality of connectors C provided in an electronic device.

[0056] In the above embodiment, the housing 1 has been described as including the base 1A having a pentagonal shape in a plan view and the connection portion 1B formed integrally with the base 1A in a state in which the housing 1 is placed on the base 1A. However, the base 1A and the connection portion 1B may be formed in other shapes, and the housing 1 may be formed only with the connection portion 1B.

[0057] In the above embodiment, the mounting member 2 has been described as having four locking pieces 23 arranged along the circumferential direction, but the number of locking pieces 23 that the mounting member 2 has may be 1 to 3, or may be 5 or more, and is not limited to four locking pieces 23. When there are three or more locking pieces 23, the center of a polygon having vertices at positions where the respective locking pieces 23 are arranged can be made to coincide with the center of the shape of the outer circumferential surface 24 when viewed in the axial direction Z.

[0058] In the above embodiment, the locking piece 23 extends from the base end 23A on the Z1 side of the mounting member 2 toward the Z2 side, and the Z2 side is cut and raised radially inward from the base end 23A. However, the locking piece 23 may not be cut and raised radially inward from the base end 23A on the Z2 side, and may have a convex body that protrudes radially inward on the radially inner surface on the Z2 side, for example. [Industrial Applicability]

[0059] The present invention can be used in a system for transmitting signals by connecting electronic devices with a coaxial cable. [Explanation of symbols]

[0060] 1: Housing 2: Mounting parts 3:Shell 4: Body 5: Terminal 13: Shell insertion part 14: Contact part 21: First end (first end) 22: Second end (second end) 23: Locking piece (locking part) 23A: Proximal end 31A: Outer surface 32: Tsuba section 33: Groove 111: Inner wall (inner wall part) 111a: (engaging part) 111b: Second engaging part (seat part) C: Connector

Claims

1. a cylindrical shell made of a conductive material and having a flange protruding radially outward from an outer circumferential surface on one axial side; a body made of insulating material supported on a radially inner side of the shell; a terminal supported by the body and extending along an axial direction of the shell on a radially inner side of the shell; a housing having a contact portion that contacts the flange portion and a cylindrical shell insertion portion through which the shell is inserted; a cylindrical mounting member provided on an inner wall portion of the shell insertion portion, the cylindrical mounting member having a locking portion that gradually reduces in diameter toward the other axial side of the shell and toward the axial center side of the shell insertion portion and that locks into an annular groove provided on the outer peripheral surface of the shell; A connector comprising:

2. The connector according to claim 1, wherein the shell is restricted from moving in the other axial direction by the abutment between the flange portion and the abutment portion, and is restricted from moving in the one axial direction by the engagement of the locking portion with the groove portion.

3. 3. A connector as described in claim 1 or 2, wherein a first end of the mounting member on one axial side abuts a seat formed on the inner wall portion of the shell insertion portion, and a second end of the mounting member on the other axial side engages with an engaging portion formed on the other axial side of the inner wall portion of the shell insertion portion.

4. 3. The connector according to claim 1, wherein a circumferential portion of the mounting member is cut from a first end portion on one axial side to a second end portion on the other axial side.

5. The mounting member has four of the locking portions arranged along a circumferential direction, 3. A connector as described in claim 1 or 2, wherein each of the four locking portions is formed so as to face radially opposite another locking portion among the four locking portions that is different from two adjacent locking portions.

6. 3. A connector as described in claim 1 or 2, wherein the locking portion extends from a base end portion on one axial side of the mounting member toward the other axial side, and the other axial side is cut out and raised radially inward from the base end portion.

7. The mounting member has at least three or more of the locking portions along a circumferential direction, 3. The connector according to claim 1, wherein the center of a polygon having vertices at positions where the respective locking portions are arranged coincides with the center of a shape of the outer circumferential surface of the mounting member when viewed in the axial direction.

Images