Shield and connector

Abstract

The invention discloses a shield and a connector. The shield includes: a cylindrical body having a front end and a rear end opposite to each other in an axial direction thereof; and the cantilevers are connected with the front end of the cylindrical body and are suitable for being inserted into mounting holes in a mounting panel. The cantilever comprises an elastic arm part which is used for electrically contacting with the inner wall surface of the mounting hole; and the fixing part is connected between the elastic arm part and the cylindrical body, and a rigid bulge protruding outwards is formed on the fixing part. The rigid protrusion is suitable for being in interference fit with the inner wall face of the mounting hole, and the inner side of the fixing part is suitable for abutting against the terminal holding body so as to limit the shielding piece from shaking in the radial direction of the mounting hole relative to the mounting panel. According to the invention, the rigid projection on the shielding member can limit and reduce the radial shaking amount of the shielding member relative to the installation panel, thereby reducing the wear degree of the shielding member, and guaranteeing the stable electric contact between the shielding member and the installation panel. In addition, the shielding piece is simple in structure and easy to manufacture, and the manufacturing cost is greatly reduced.

Description

Technical Field

[0001] The present invention relates to a shielding member for a connector and a connector comprising the shielding member. Background Art

[0002] In the prior art, a shielding member is usually mounted on the terminal retaining body of a connector. One end of the shielding member is used to mate with the mating shielding member of the mating connector, and the other end is formed with a plurality of cantilevers for being inserted into the mounting hole on the mounting panel and electrically contacting the inner wall surface of the mounting hole. In the prior art, in order to prevent the shielding member from radially shaking relative to the mounting panel, the shielding member also needs to have a support layer for interference fit with the inner wall surface of the mounting hole. Therefore, the existing shielding member usually has an inner and outer layer structure, the outer layer is used for fixed support, and the inner layer is used for elastic contact. This two-layer structure of the shielding member has the disadvantages of complex structure, difficult manufacturing, and high cost. However, if the shielding member is not provided with a support layer, the shielding member will experience large radial shaking relative to the mounting panel during vibration, which will lead to problems such as severe wear of the shielding member, excessively high contact resistance, and unstable electrical contact. Summary of the Invention

[0003] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to one aspect of the present invention, a shielding member is provided. The shielding member is used to be mounted on the terminal retaining body of the connector. The shielding member includes: a cylindrical body having a front end and a rear end opposite to each other in its axial direction; and a plurality of cantilevers connected to the front end of the cylindrical body and suitable for being inserted into the mounting hole on the mounting panel. The cantilever includes: an elastic arm portion for electrically contacting the inner wall surface of the mounting hole; and a fixing portion connected between the elastic arm portion and the cylindrical body and having a rigid protrusion protruding outward formed thereon. The rigid protrusion is suitable for interference fit with the inner wall surface of the mounting hole and the inner side of the fixing portion is suitable for abutting against the terminal retaining body to limit the shaking of the shielding member relative to the mounting panel in the radial direction of the mounting hole.

[0005] According to an exemplary embodiment of the present invention, the plurality of cantilevers are evenly spaced and distributed in a circumferential direction of the cylindrical body and extend forward from a front end of the cylindrical body by a predetermined length.

[0006] According to another exemplary embodiment of the present invention, the elastic arm portion is in an outwardly arched shape so as to be in electrical contact with an inner wall surface of the mounting hole of the mounting panel.

[0007] According to another exemplary embodiment of the present invention, the rigid protrusion is a convex bulge protruding toward the outside of the fixing portion, and the convex bulge is located in the middle part of the width direction of the fixing portion; or the rigid protrusion is a convex rib protruding toward the outside of the fixing portion, and the convex rib extends along the width direction of the fixing portion.

[0008] According to another exemplary embodiment of the present invention, a slot is formed on the elastic arm portion, and the slot extends along the length direction of the elastic arm portion to increase the elasticity of the elastic arm portion; or a plurality of through holes are formed on the elastic arm portion, and the plurality of through holes are arranged in a row in the length direction of the elastic arm portion to increase the elasticity of the elastic arm portion.

[0009] According to another exemplary embodiment of the present invention, a plurality of locking springs are formed on the cylindrical body, and the plurality of locking springs are evenly spaced in the circumferential direction of the cylindrical body and close to the front end of the cylindrical body, and are used to engage with the terminal retaining body to lock the shielding member to the terminal retaining body.

[0010] According to another exemplary embodiment of the present invention, the locking spring extends obliquely toward the interior of the cylindrical body and is adapted to abut against the step portion of the terminal retaining body along the axial direction of the cylindrical body to prevent the shielding member sleeved on the terminal retaining body from being pulled out of the terminal retaining body.

[0011] According to another exemplary embodiment of the present invention, the rear end of the cylindrical body is adapted to mate with a mating shield of a mating connector so as to make electrical contact with the mating shield.

[0012] According to another exemplary embodiment of the present invention, the shielding component is an integral stamped and formed component.

[0013] According to another aspect of the present invention, a connector is provided. The connector comprises: a housing including a peripheral wall and a bottom wall for enclosing an inner cavity, and a terminal retaining body for mounting terminals; and the aforementioned shielding member, which is mounted on the terminal retaining body. When the housing is mounted on a mounting panel, the plurality of cantilever arms of the shielding member are inserted into mounting holes on the mounting panel, the rigid protrusions on the fixing portions of the cantilever arms are interference-fitted with the inner wall surface of the mounting hole, and the inner side of the fixing portion of the cantilever arms abuts against the terminal retaining body, thereby limiting the shielding member from shaking in the radial direction of the mounting hole relative to the mounting panel.

[0014] According to an exemplary embodiment of the present invention, the terminal retaining body includes: an inner retaining body located within the inner cavity and connected to the inner side of the bottom wall; and an outer retaining body located outside the inner cavity and connected to the outer side of the bottom wall. The cylindrical body of the shielding member is mounted on the inner retaining body, and the bottom wall is formed with a plurality of insertion holes that allow the plurality of cantilevered arms of the shielding member to pass through. The plurality of cantilevered arms pass through the plurality of insertion holes and surround the outer retaining body. When the housing is mounted on the mounting panel, the outer retaining body passes through the mounting hole in the mounting panel.

[0015] According to another exemplary embodiment of the present invention, a plurality of axial grooves corresponding to the plurality of elastic arm portions of the shielding member are formed on the outer retaining body, and the plurality of elastic arm portions are respectively suspended in the plurality of axial grooves to position the elastic arm portions in the circumferential direction and allow the elastic arm portions to elastically deform in the radial direction.

[0016] According to another exemplary embodiment of the present invention, a plurality of support portions corresponding to the plurality of fixing portions of the shielding member are formed on the outer retaining body, and the plurality of support portions respectively abut against inner sides of the plurality of fixing portions to prevent the fixing portions from moving in a radial direction.

[0017] According to another exemplary embodiment of the present invention, a plurality of step portions corresponding to the plurality of locking springs of the shielding member are formed on the inner retaining body, and the plurality of step portions respectively abut axially against the ends of the plurality of locking springs to prevent the shielding member from being pulled out of the terminal retaining body.

[0018] According to another exemplary embodiment of the present invention, the shell further includes a flange portion connected to the bottom of the peripheral wall, and a connecting hole allowing a threaded connector to pass through is formed on the flange portion, so that the flange portion can be fastened to the mounting panel by the threaded connector passing through the connecting hole.

[0019] According to another exemplary embodiment of the present invention, a sealing ring mounting groove is formed on the bottom surface of the flange portion. The connector further includes a sealing ring mounted in the sealing ring mounting groove. The sealing ring is adapted to be squeezed between the flange portion and the mounting panel to achieve a seal between the housing and the mounting panel.

[0020] According to another exemplary embodiment of the present invention, the connector includes a plurality of shielding members for respectively inserting into a plurality of mounting holes on the mounting panel, the housing includes a plurality of terminal retaining bodies, and the plurality of shielding members are respectively sleeved on the plurality of terminal retaining bodies.

[0021] According to another exemplary embodiment of the present invention, the terminal retaining body is columnar and connected to the bottom wall, a terminal insertion hole for inserting the terminal is formed in the terminal retaining body, and the terminal insertion hole axially penetrates the terminal retaining body and the bottom wall.

[0022] According to another exemplary embodiment of the present invention, the connector further includes: a terminal, which is inserted into the terminal jack of the terminal retaining body, and the terminal includes a cylindrical mating portion, which is located in the inner retaining body and is used to mate with the mating terminal of the mating connector inserted into the inner retaining body.

[0023] According to another exemplary embodiment of the present invention, the terminal further includes a flat connecting portion axially opposite to the mating portion, the connecting portion is located in the outer retaining body and extends from the outer retaining body for electrically connecting to a connecting terminal in the device.

[0024] According to another exemplary embodiment of the present invention, the cross-section of the terminal insertion hole is circular, and a pair of axially extending positioning grooves are formed in the outer retaining body; the two longitudinal edge portions of the flat connecting portion of the terminal are respectively positioned in the pair of positioning grooves.

[0025] In the aforementioned exemplary embodiments of the present invention, the rigid protrusions on the shielding member limit and reduce radial wobble of the shielding member relative to the mounting panel, thereby reducing wear on the shielding member and ensuring stable electrical contact between the shielding member and the mounting panel. Furthermore, the shielding member of the present invention has a simple structure and is easy to manufacture, significantly reducing manufacturing costs.

[0026] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A perspective schematic diagram showing a connector according to an exemplary embodiment of the present invention;

[0028] Figure 2 An axial cross-sectional view showing a connector according to an exemplary embodiment of the present invention;

[0029] Figure 3 An exploded schematic diagram showing a connector according to an exemplary embodiment of the present invention;

[0030] Figure 4 A perspective schematic diagram showing a shielding member of a connector according to an exemplary embodiment of the present invention;

[0031] Figure 5An axial cross-sectional view showing a shield of a connector according to an exemplary embodiment of the present invention;

[0032] Figure 6 A perspective schematic diagram showing a connector and a mounting panel according to an exemplary embodiment of the present invention;

[0033] Figure 7 A schematic diagram showing a shielding member of a connector according to an exemplary embodiment of the present invention being inserted into a mounting hole on a mounting panel;

[0034] Figure 8 A partially enlarged schematic diagram of a connector and a mounting panel according to an exemplary embodiment of the present invention is shown, wherein the cantilevered arms of the shield are shown. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be further described in detail below through examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as limiting the present invention.

[0036] In addition, in the following detailed description, for ease of explanation, numerous specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments can be practiced without these specific details. In other cases, well-known structures and devices are shown in diagrammatic form to simplify the accompanying drawings.

[0037] According to an overall technical concept of the present invention, a shielding member is provided. The shielding member is used to be mounted on the terminal retaining body of the connector. The shielding member includes: a cylindrical body having a front end and a rear end opposite to each other in its axial direction; and a plurality of cantilevers connected to the front end of the cylindrical body and suitable for being inserted into the mounting hole on the mounting panel. The cantilever includes: an elastic arm portion for electrically contacting the inner wall surface of the mounting hole; and a fixing portion connected between the elastic arm portion and the cylindrical body and having a rigid protrusion protruding outward formed thereon. The rigid protrusion is suitable for interference fit with the inner wall surface of the mounting hole and the inner side of the fixing portion is suitable for abutting against the terminal retaining body to limit the shaking of the shielding member relative to the mounting panel in the radial direction of the mounting hole.

[0038] According to another general technical concept of the present invention, a connector is provided. The connector includes: a housing, including a peripheral wall and a bottom wall for enclosing an inner cavity and a terminal retaining body for mounting terminals; and the aforementioned shielding member, which is mounted on the terminal retaining body. When the housing is mounted on a mounting panel, the multiple cantilevers of the shielding member are inserted into the mounting holes on the mounting panel, the rigid protrusions on the fixing portions of the cantilevers are interference-fitted with the inner wall surface of the mounting hole, and the inner side of the fixing portion of the cantilever abuts against the terminal retaining body, thereby limiting the shielding member from shaking in the radial direction of the mounting hole relative to the mounting panel.

[0039] Figure 1 A perspective schematic diagram showing a connector according to an exemplary embodiment of the present invention; Figure 2 An axial cross-sectional view showing a connector according to an exemplary embodiment of the present invention; Figure 3 An exploded schematic diagram showing a connector according to an exemplary embodiment of the present invention; Figure 4 A perspective schematic diagram showing a shielding member 1 of a connector according to an exemplary embodiment of the present invention; Figure 5 An axial cross-sectional view showing a shielding member 1 of a connector according to an exemplary embodiment of the present invention; Figure 6 A perspective schematic diagram showing a connector and a mounting panel 5 according to an exemplary embodiment of the present invention; Figure 7 A schematic diagram showing a shielding member 1 of a connector according to an exemplary embodiment of the present invention being inserted into a mounting hole 501 on a mounting panel 5; Figure 8 A partially enlarged schematic diagram of a connector and a mounting panel 5 according to an exemplary embodiment of the present invention is shown, wherein the cantilever 12 of the shield 1 is shown.

[0040] like Figures 1 to 8 As shown, in an exemplary embodiment of the present invention, a shielding member 1 is disclosed. The shielding member 1 is configured to be mounted on a terminal retaining body 23 of a connector. The shielding member 1 includes a cylindrical body 11 and a plurality of cantilever arms 12. The cylindrical body 11 has a front end and a rear end that are opposed to each other in the axial direction. The plurality of cantilever arms 12 are connected to the front end of the cylindrical body 11 and are adapted to be inserted into mounting holes 501 in a mounting panel 5.

[0041] like Figures 1 to 8As shown, in the illustrated embodiment, the cantilever 12 includes: an elastic arm portion 121 and a fixed portion 122. The elastic arm portion 121 is used to make electrical contact with the inner wall surface of the mounting hole 501. The fixed portion 122 is connected between the elastic arm portion 121 and the cylindrical body 11 and is formed with a rigid protrusion 1a protruding outward. The rigid protrusion 1a is suitable for interference fit with the inner wall surface of the mounting hole 501 and the inner side of the fixed portion 122 is suitable for abutting against the terminal retaining body 23 to limit the shielding component 1 from shaking in the radial direction of the mounting hole 501 relative to the mounting panel 5. Therefore, even in a vibration environment, the shielding component 1 will not shake much relative to the mounting panel 5, and can reliably ensure stable electrical contact between the shielding component 1 and the mounting panel 5.

[0042] like Figures 1 to 8 As shown, in the illustrated embodiment, a plurality of cantilevers 12 are evenly spaced apart in the circumferential direction of the cylindrical body 11 and extend forward from the front end of the cylindrical body 11 by a predetermined length.

[0043] like Figures 1 to 8 As shown, in the illustrated embodiment, the elastic arm portion 121 is in an outwardly arched shape so as to electrically contact the inner wall surface of the mounting hole 501 of the mounting panel 5 .

[0044] like Figures 1 to 8 As shown, in the illustrated embodiment, the rigid protrusion 1a is a convex bump that protrudes toward the outside of the fixing portion 122, and the convex bump is located in the middle portion of the width direction of the fixing portion 122. However, the present invention is not limited to the illustrated embodiment. For example, in another exemplary embodiment of the present invention, the rigid protrusion 1a may be a convex rib that protrudes toward the outside of the fixing portion 122, and the rib extends along the width direction of the fixing portion 122.

[0045] like Figures 1 to 8 As shown, in the illustrated embodiment, a slot 1c is formed on the elastic arm portion 121, and the slot 1c extends along the length direction of the elastic arm portion 121 to increase the elasticity of the elastic arm portion 121. However, the present invention is not limited to the illustrated embodiment. For example, in another exemplary embodiment of the present invention, a plurality of through holes may be formed on the elastic arm portion 121, and the plurality of through holes may be arranged in a row along the length direction of the elastic arm portion 121 to increase the elasticity of the elastic arm portion 121.

[0046] like Figures 1 to 8 As shown, in the illustrated embodiment, a plurality of locking springs 1b are formed on the cylindrical body 11, and the plurality of locking springs 1b are evenly spaced in the circumferential direction of the cylindrical body 11 and close to the front end of the cylindrical body 11, and are used to engage with the terminal retaining body 23 to lock the shielding member 1 to the terminal retaining body 23.

[0047] like Figures 1 to 8As shown, in the illustrated embodiment, the locking spring 1b extends obliquely toward the interior of the cylindrical body 11 and is suitable for abutting against the step portion 23d of the terminal retaining body 23 along the axial direction of the cylindrical body 11 to prevent the shielding member 1 mounted on the terminal retaining body 23 from being pulled out from the terminal retaining body 23.

[0048] like Figures 1 to 8 As shown, in the illustrated embodiment, the rear end of the cylindrical body 11 is adapted to mate with the mating shielding member 1 of the mating connector so as to make electrical contact with the mating shielding member 1 .

[0049] like Figures 1 to 8 As shown, in the illustrated embodiment, the shielding element 1 is an integral stamped and formed part.

[0050] like Figures 1 to 8 As shown, in another exemplary embodiment of the present invention, a connector is also disclosed. The connector includes: a shell 2 and the aforementioned shielding member 1. The shell 2 includes a peripheral wall 21 and a bottom wall 22 for enclosing an inner cavity 201 and a terminal retaining body 23 for mounting the terminal 3. The shielding member 1 is sleeved on the terminal retaining body 23. When the shell 2 is mounted on the mounting panel 5, the multiple cantilevers 12 of the shielding member 1 are inserted into the mounting holes 501 on the mounting panel 5. The rigid protrusion 1a on the fixing portion 122 of the cantilever 12 is interference fit with the inner wall surface of the mounting hole 501 and the inner side of the fixing portion 122 of the cantilever 12 abuts against the terminal retaining body 23 to limit the shielding member 1 from shaking in the radial direction of the mounting hole 501 relative to the mounting panel 5.

[0051] like Figures 1 to 8 As shown, in the illustrated embodiment, the terminal retaining body 23 includes an inner retaining body 232 and an outer retaining body 231. The inner retaining body 232 is located inside the inner cavity 201 and is connected to the inner side of the bottom wall 22. The outer retaining body 231 is located outside the inner cavity 201 and is connected to the outer side of the bottom wall 22. The cylindrical body 11 of the shielding member 1 is mounted on the inner retaining body 232. The bottom wall 22 is formed with a plurality of insertion holes 221 through which the plurality of cantilever arms 12 of the shielding member 1 can pass. The plurality of cantilever arms 12 respectively pass through the plurality of insertion holes 221 and surround the outer retaining body 231.

[0052] like Figures 1 to 8 As shown, in the illustrated embodiment, when the shell 2 is mounted on the mounting panel 5, the outer retaining body 231 passes through the mounting hole 501 on the mounting panel 5, and the multiple cantilevers 12 of the shielding member 1 are inserted into the mounting hole 501 and electrically contact the inner wall surface of the mounting hole 501.

[0053] like Figures 1 to 8As shown, in the illustrated embodiment, a plurality of axial grooves 23a corresponding to the plurality of elastic arm portions 121 of the shielding member 1 are formed on the outer retaining body 231, and the plurality of elastic arm portions 121 are respectively suspended in the plurality of axial grooves 23a to position the elastic arm portions 121 in the circumferential direction and allow the elastic arm portions 121 to elastically deform in the radial direction.

[0054] like Figures 1 to 8 As shown, in the illustrated embodiment, a plurality of support portions 23b corresponding to the plurality of fixing portions 122 of the shielding member 1 are formed on the outer retaining body 231, and the plurality of support portions 23b respectively abut against the inner sides of the plurality of fixing portions 122 to prevent the fixing portions 122 from moving in the radial direction.

[0055] like Figures 1 to 8 As shown, in the illustrated embodiment, a plurality of step portions 23d corresponding to the plurality of locking springs 1b of the shielding member 1 are formed on the inner retaining body 232, and the plurality of step portions 23d respectively abut axially against the ends of the plurality of locking springs 1b to prevent the shielding member 1 from being pulled out from the terminal retaining body 23.

[0056] like Figures 1 to 8 As shown, in the illustrated embodiment, the shell 2 also includes a flange portion 24 connected to the bottom of the peripheral wall 21, and a connecting hole 241 allowing a threaded connector to pass through is formed on the flange portion 24, so that the flange portion 24 can be fastened to the mounting panel 5 by the threaded connector passing through the connecting hole 241.

[0057] like Figures 1 to 8 As shown, in the illustrated embodiment, a sealing ring mounting groove 242 is formed on the bottom surface of the flange portion 24. The connector also includes a sealing ring 4, which is mounted in the sealing ring mounting groove 242. The sealing ring 4 is adapted to be squeezed between the flange portion 24 and the mounting panel 5 to achieve a seal between the housing 2 and the mounting panel 5.

[0058] like Figures 1 to 8 As shown, in the illustrated embodiment, the connector includes a plurality of shielding members 1 for respectively inserting into a plurality of mounting holes 501 on the mounting panel 5, the housing 2 includes a plurality of terminal retaining bodies 23, and the plurality of shielding members 1 are respectively mounted on the plurality of terminal retaining bodies 23.

[0059] like Figures 1 to 8 As shown, in the illustrated embodiment, the terminal retaining body 23 is columnar and connected to the bottom wall 22. A terminal insertion hole 230 for inserting the terminal 3 is formed in the terminal retaining body 23, and the terminal insertion hole 230 axially penetrates the terminal retaining body 23 and the bottom wall 22.

[0060] like Figures 1 to 8As shown, in the illustrated embodiment, the connector further includes a terminal 3, which is inserted into the terminal insertion hole 230 of the terminal retaining body 23. The terminal 3 includes a cylindrical mating portion 32, which is located in the inner retaining body 232 and is used to mate with the mating terminal 3 of the mating connector inserted into the inner retaining body 232.

[0061] like Figures 1 to 8 As shown, in the illustrated embodiment, the terminal 3 also includes a flat connecting portion 31 axially opposite to the mating portion 32. The connecting portion 31 is located in the outer retaining body 231 and extends from the outer retaining body 231 for electrical connection to a connecting terminal (not shown) in the device (not shown).

[0062] like Figures 1 to 8 As shown, in the illustrated embodiment, the terminal insertion hole 230 has a circular cross-section and a pair of axially extending positioning grooves 23c are formed in the outer retaining body 231. The two longitudinal edge portions 31a of the flat connecting portion 31 of the terminal 3 are respectively positioned in the pair of positioning grooves 23c.

[0063] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved by those skilled in the art. The structures described in various embodiments can be freely combined without causing any conflicts in structure or principle. These changes should fall within the scope of protection of the present invention.

[0064] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplify the preferred embodiments of the present invention and should not be construed as limiting the present invention.

[0065] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

[0066] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element reference in the claims should not be construed as limiting the scope of the invention.

Claims

1. A shielding member for being mounted on a terminal retaining body (23) of a connector, characterized in that: The shielding member (1) comprises: a cylindrical body (11) having a front end and a rear end opposite to each other in the axial direction thereof; and A plurality of cantilevers (12) are connected to the front end of the cylindrical body (11) and are suitable for being inserted into the mounting holes (501) on the mounting panel (5). The cantilever (12) comprises: an elastic arm portion (121), configured to electrically contact the inner wall surface of the mounting hole (501); and The fixing portion (122) is connected between the elastic arm portion (121) and the cylindrical body (11) and is formed with a rigid protrusion (1a) protruding outward. The rigid protrusion (1a) is adapted to be interference-fitted with the inner wall surface of the mounting hole (501), and the inner side of the fixing portion (122) is adapted to abut against the terminal retaining body (23) to limit the shielding member (1) from shaking in the radial direction of the mounting hole (501) relative to the mounting panel (5).

2. The shielding element according to claim 1, wherein: The plurality of cantilevers (12) are evenly spaced and distributed in the circumferential direction of the cylindrical body (11) and extend forward from the front end of the cylindrical body (11) by a predetermined length.

3. The shielding element according to claim 1, wherein: The elastic arm portion (121) is in an outwardly arched shape so as to be in electrical contact with the inner wall surface of the mounting hole (501) of the mounting panel (5).

4. The shielding element according to claim 1, wherein: The rigid protrusion (1a) is a convex bump protruding toward the outside of the fixing portion (122), and the convex bump is located in the middle of the width direction of the fixing portion (122); or The rigid protrusion (1a) is a convex rib protruding toward the outside of the fixing portion (122), and the convex rib extends along the width direction of the fixing portion (122).

5. The shielding element according to claim 1, wherein: A slot (1c) is formed on the elastic arm portion (121), and the slot (1c) extends along the length direction of the elastic arm portion (121) to increase the elasticity of the elastic arm portion (121); or A plurality of through holes are formed on the elastic arm portion (121), and the plurality of through holes are arranged in a row in the length direction of the elastic arm portion (121) to increase the elasticity of the elastic arm portion (121).

6. The shielding element according to claim 1, wherein: A plurality of locking springs (1b) are formed on the cylindrical body (11), and the plurality of locking springs (1b) are evenly spaced and distributed in the circumferential direction of the cylindrical body (11) and close to the front end of the cylindrical body (11), and are used to engage with the terminal retaining body (23) to lock the shielding member (1) to the terminal retaining body (23).

7. The shielding element according to claim 6, wherein: The locking spring (1b) extends obliquely toward the interior of the cylindrical body (11) and is adapted to abut against the step portion (23d) of the terminal retaining body (23) along the axial direction of the cylindrical body (11) to prevent the shielding member (1) sleeved on the terminal retaining body (23) from being pulled out of the terminal retaining body (23).

8. The shielding element according to claim 1, wherein: The rear end of the cylindrical body (11) is suitable for mating with a mating shielding member (1) of a mating connector so as to be in electrical contact with the mating shielding member (1).

9. The shielding element according to any one of claims 1 to 8, characterized in that: The shielding component (1) is an integral stamped component.

10. A connector, characterized in that: include: The housing (2) includes a peripheral wall (21) and a bottom wall (22) for enclosing an inner cavity (201), and a terminal retaining body (23) for mounting a terminal (3); and The shielding member (1) according to any one of claims 1 to 9 is mounted on the terminal holding body (23). When the shell (2) is mounted on the mounting panel (5), the multiple cantilevers (12) of the shielding member (1) are inserted into the mounting holes (501) on the mounting panel (5), the rigid protrusions (1a) on the fixing portions (122) of the cantilevers (12) are interference-fitted with the inner wall surface of the mounting hole (501), and the inner side of the fixing portion (122) of the cantilever (12) abuts against the terminal retaining body (23), so as to limit the shielding member (1) from shaking in the radial direction of the mounting hole (501) relative to the mounting panel (5).

11. The connector according to claim 10, wherein: The terminal holding body (23) comprises: an inner retaining body (232), located inside the inner cavity (201) and connected to the inner side of the bottom wall (22); and An outer retaining body (231) is located outside the inner cavity (201) and connected to the outer side of the bottom wall (22). The cylindrical body (11) of the shielding member (1) is mounted on the inner retaining body (232), and a plurality of insertion holes (221) are formed on the bottom wall (22) to allow the plurality of cantilevers (12) of the shielding member (1) to pass through respectively. The plurality of cantilevers (12) pass through the plurality of insertion holes (221) and embrace the outer retaining body (231). When the housing (2) is mounted on the mounting panel (5), the outer retaining body (231) passes through the mounting hole (501) on the mounting panel (5).

12. The connector according to claim 11, wherein: A plurality of axial grooves (23a) corresponding to the plurality of elastic arm portions (121) of the shielding member (1) are formed on the outer retaining body (231), and the plurality of elastic arm portions (121) are suspended in the plurality of axial grooves (23a) to position the elastic arm portions (121) in the circumferential direction and allow the elastic arm portions (121) to elastically deform in the radial direction.

13. The connector according to claim 11, wherein: A plurality of supporting portions (23b) corresponding to the plurality of fixing portions (122) of the shielding member (1) are formed on the outer retaining body (231), and the plurality of supporting portions (23b) respectively abut against the inner sides of the plurality of fixing portions (122) to prevent the fixing portions (122) from moving in the radial direction.

14. The connector according to claim 11, wherein: A plurality of step portions (23d) corresponding to the plurality of locking springs (1b) of the shielding member (1) are formed on the inner retaining body (232), and the plurality of step portions (23d) respectively abut axially against the ends of the plurality of locking springs (1b) to prevent the shielding member (1) from being pulled out of the terminal retaining body (23).

15. The connector according to claim 10, wherein: The housing (2) further comprises a flange portion (24) connected to the bottom of the peripheral wall (21), and a connection hole (241) is formed on the flange portion (24) for allowing a threaded connection member to pass through, so that the flange portion (24) can be fastened to the mounting panel (5) by the threaded connection member passing through the connection hole (241).

16. The connector according to claim 15, wherein: A sealing ring mounting groove (242) is formed on the bottom surface of the flange portion (24); The connector further comprises: The sealing ring (4) is installed in the sealing ring installation groove (242), The sealing ring (4) is suitable for being squeezed between the flange portion (24) and the mounting panel (5) to achieve sealing between the housing (2) and the mounting panel (5).

17. The connector according to claim 11, wherein: The connector comprises a plurality of shielding members (1) for being respectively inserted into a plurality of mounting holes (501) on the mounting panel (5); the housing (2) comprises a plurality of terminal retaining bodies (23); and the plurality of shielding members (1) are respectively fitted onto the plurality of terminal retaining bodies (23).

18. The connector according to claim 11, wherein: The terminal retaining body (23) is columnar and connected to the bottom wall (22). A terminal insertion hole (230) for inserting the terminal (3) is formed in the terminal retaining body (23). The terminal insertion hole (230) axially penetrates the terminal retaining body (23) and the bottom wall (22).

19. The connector according to claim 18, wherein Also includes: The terminal (3) is inserted into the terminal insertion hole (230) of the terminal holding body (23), The terminal (3) includes a cylindrical mating portion (32), which is located in the inner retaining body (232) and is used to mate with a mating terminal (3) of a mating connector inserted into the inner retaining body (232).

20. The connector according to claim 19, wherein: The terminal (3) further comprises a flat connecting portion (31) axially opposite to the mating portion (32); the connecting portion (31) is located in the outer retaining body (231) and extends from the outer retaining body (231) for electrically connecting to the connecting terminal (3) in the device.

21. The connector according to claim 20, wherein: The cross section of the terminal insertion hole (230) is circular, and a pair of axially extending positioning grooves (23c) are formed in the outer retaining body (231); The two longitudinal edge portions (31a) of the flat connection portion (31) of the terminal (3) are respectively positioned in the pair of positioning grooves (23c).

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