Connector

Abstract

The invention discloses a connector. The connector comprises a shell, a mounting part, a first shielding ring and a clamping ring, a fixing hole for a cable to penetrate through is formed in the shell. The installation part protrudes along the outer wall of the shell in the radial direction. The first shielding ring is located in the fixing hole and sleeves the outer wall of the cable. The clamping ring is arranged in the fixing hole, and at least part of the clamping ring is sleeved between the first shielding ring and the hole wall of the fixing hole; the clamping ring is provided with a first limiting protrusion in the radial direction, the hole wall of the fixing hole is correspondingly provided with a limiting groove matched with the first limiting protrusion, and the first limiting protrusion is limited in the limiting groove. According to the structure, through limiting cooperation of the clamping ring and the fixing hole wall, the structural stability and the shielding reliability of the connector are enhanced, and meanwhile assembling is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical connectors, in particular to a connector. BACKGROUND

[0002] With the continuous improvement of the electrification and intelligence level of automobiles, the number and application scenarios of vehicle-mounted motors have increased dramatically, and their performance requirements for matching connectors have also become increasingly stringent. As a key interface for power and signal transmission, the reliability of the connector is directly related to the stable operation of the vehicle system. Currently, traditional vehicle-mounted connectors have problems such as large size, inconvenient installation, insufficient electromagnetic shielding performance, and weak anti-vibration loosening ability. Therefore, there is an urgent need in the art for a vehicle-mounted connector solution that can simultaneously meet the requirements of small size, light weight, efficient electromagnetic shielding, high-level waterproofing, and excellent anti-vibration performance. SUMMARY

[0003] The main purpose of the present application is to provide a connector, comprising: a housing, the housing is provided with a fixing hole, and a cable is arranged in the fixing hole; a mounting portion, the mounting portion is protruded along the radial direction of the outer wall of the housing; a first shielding ring, the first shielding ring is arranged in the fixing hole and is sleeved on the outer wall of the cable; a snap ring, the snap ring is arranged in the fixing hole, the snap ring is at least partially sleeved between the first shielding ring and the hole wall of the fixing hole, the snap ring is provided with a first limiting protrusion in the radial direction, the hole wall of the fixing hole is provided with a limiting groove corresponding to the first limiting protrusion, and the first limiting protrusion is limited in the limiting groove.

[0004] Optionally, in an embodiment of the present application, the housing comprises a first body and a second body, the mounting portion is arranged at one end of the second body adjacent to the first body, the fixing hole comprises a first mounting hole and a second mounting hole, the first mounting hole is located in the first body, the second mounting hole is located in the second body, and the first mounting hole and the second mounting hole are coaxially and continuously arranged.

[0005] Optionally, in an embodiment of the present application, the outer wall of the first body is provided with a waterproof groove, and the waterproof groove is provided with a first sealing ring. And / or the housing is made of metal.

[0006] Optionally, in an embodiment of the present application, the first shielding ring comprises a first fixed portion and a second fixed portion, the first fixed portion is arranged at one end of the second mounting hole close to the first mounting hole, the snap ring is arranged in the second mounting hole, and the snap ring is at least partially sleeved between the second fixed portion and the hole wall of the second mounting hole.

[0007] Optionally, in an embodiment of the present application, the connector further comprises a second shielding ring, which is arranged outside the cable and accommodated in the second fixing part.

[0008] Optionally, in an embodiment of the present application, a limiting groove is arranged outside the first fixing part, and a clamping groove is arranged on the side wall of the limiting groove along the axial direction. The connector further comprises a shielding clamping jaw, which comprises a ring-shaped part and a plurality of elastic pieces, the elastic pieces are arranged at intervals on the outer periphery of the ring-shaped part, the ring-shaped part is arranged in the limiting groove, and the two ends of the ring-shaped part are limited in the clamping groove.

[0009] Optionally, in an embodiment of the present application, the clamping ring comprises a base body and a first clamping arm and a second clamping arm arranged at one end of the base body, the first clamping arm and the second clamping arm are arranged alternately and at intervals, the first clamping arm has a first length, the second clamping arm has a second length, the first length is smaller than the second length, the first clamping arm and the second clamping arm extend along the axial direction, the first clamping arm is provided with the first limiting protrusion away from one end of the clamping ring, and the second clamping arm is provided with the second limiting protrusion away from one end of the clamping ring. The limiting groove is arranged on the hole wall of the second mounting hole corresponding to the first limiting protrusion, and the limiting part is arranged corresponding to the second limiting protrusion.

[0010] Optionally, in an embodiment of the present application, the connector further comprises a second sealing ring, which is arranged in the second mounting hole and close to one end of the clamping ring away from the first main body.

[0011] Optionally, in an embodiment of the present application, the connector further comprises a baffle and a clamping spring, the baffle is arranged at one end of the second sealing ring away from the first main body, the clamping spring is arranged at one end of the baffle away from the first main body, the second mounting hole is provided with a fixing groove corresponding to the clamping spring, and the clamping spring is limited in the fixing groove, so that one end of the clamping spring abuts against the groove wall of the fixing groove, and the other end abuts against the baffle.

[0012] Optionally, in an embodiment of the present application, the cable comprises a conductor, a first insulating layer, a shielding layer and a second insulating layer arranged coaxially from inside to outside, the first main body and the first fixing part are sleeved outside the first insulating layer, and the second shielding ring is sleeved outside the shielding layer.

[0013] The application provides a stable and reliable mounting fulcrum for the connector, so that the connector can be conveniently fixed on the equipment panel and the mechanical stability of the connection is enhanced. The first shielding ring is arranged on the outer wall of the cable, so that an efficient grounding path is provided for the cable, electromagnetic interference is effectively suppressed and the anti-interference ability is improved, and the integrity of signal transmission is ensured. The clasp is arranged at least partially between the first shielding ring and the hole wall of the fixing hole, so that the first shielding ring is tightly pressed and positioned in the shell, and the reliability and stability of the shielding connection are ensured. The first limiting protrusion is arranged on the clasp in the radial direction, and the limiting groove is correspondingly arranged on the hole wall of the fixing hole, so that the first limiting protrusion is limited in the limiting groove, the circumferential and radial positioning and locking of the clasp in the shell are realized, the rotation or loosening of the clasp under the action of vibration or external force is effectively prevented, and the anti-vibration performance and long-term reliability of the connector are greatly improved. The combination of the above components constitutes a compact, excellent shielding performance, strong anti-vibration performance and convenient assembly connector solution, which is especially suitable for electrical connection in harsh environments such as vehicle-mounted motors. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0015] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the connector of the present application is shown. Figure 2 A cross-sectional structural schematic diagram of an embodiment of the connector of the present application is shown. Figure 3 A three-dimensional structural schematic diagram of an embodiment of the connector of the present application is shown. Figure 2 An enlarged view of position A in FIG. 4 is shown. Figure 4 An exploded view of an embodiment of the connector of the present application is shown. Figure 5 A structural schematic diagram of an embodiment of the shielding clasp of the present application is shown. Figure 6 A structural schematic diagram of an embodiment of the clasp of the present application is shown.

[0016] Explanation of reference numerals: 100. Connector; 10. Housing; 101. Fixing hole; 101a. First mounting hole; 101b. Second mounting hole; 1011. Limiting groove; 1012. Limiting part; 1013. Fixing groove; 102. First body; 1021. Waterproof groove; 1022. First sealing ring; 103. Second body; 20. Mounting part; 30. First shielding ring; 31. First fixing part; 32. Second fixing part; 311. Limiting groove; 312. Slot; 40. Snap ring; 41. Base; 42. First snap arm; 43. First limiting protrusion; 44. Second snap arm; 45. Second limiting protrusion; 50. Second shielding ring; 60. Shielding claw; 61. Annular part; 62. Spring; 70. Second sealing ring; 81. Baffle; 82. Snap spring; 90. Cable.

[0017] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0020] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0021] With the continuous improvement of automotive electrification and intelligence, the number and application scenarios of on-board motors are increasing dramatically, and the performance requirements for their supporting connectors are becoming increasingly stringent. As a key interface for power and signal transmission, the reliability of connectors directly affects the stable operation of the entire vehicle system. Currently, traditional automotive connectors suffer from problems such as bulky size making installation inconvenient, insufficient electromagnetic shielding performance, and weak vibration resistance. Therefore, there is an urgent need in this field for an automotive connector solution that can simultaneously meet the requirements of small size and lightweight design, efficient electromagnetic shielding, high-level waterproofing, and excellent vibration resistance.

[0022] In view of this, the present invention proposes a connector that provides a stable and reliable mounting point by setting a mounting part that protrudes radially along the outer wall of the housing, allowing it to be easily fixed to the device panel and enhancing the mechanical stability of the connection. By setting a first shielding ring fitted inside the fixing hole and sleeved on the outer wall of the cable, an efficient grounding path is provided for the cable, effectively suppressing electromagnetic interference and improving anti-interference capability, ensuring the integrity of signal transmission. By setting a retaining ring, which is at least partially fitted between the first shielding ring and the wall of the fixing hole, the first shielding ring is firmly pressed and positioned inside the housing, ensuring the reliability and stability of the shielded connection. By setting a radial first limiting protrusion on the retaining ring and a corresponding limiting groove on the wall of the fixing hole, the first limiting protrusion is limited to the limiting groove, thereby achieving precise circumferential and radial positioning and locking of the retaining ring within the housing, effectively preventing the retaining ring from rotating or loosening under vibration or external force, greatly improving the connector's vibration resistance and long-term reliability. The combination design of the above components forms a connector solution that is compact, has excellent shielding performance, strong vibration resistance, and is easy to assemble, making it particularly suitable for electrical connections in harsh environments such as vehicle motors.

[0023] To better understand the above technical solution, a detailed explanation of the technical solution is provided below with reference to the accompanying drawings.

[0024] like Figures 1-6 As shown, the present invention proposes a connector 100, including a housing 10, a mounting part 20, a first shielding ring 30, and a retaining ring 40. The housing 10 has a fixing hole 101, through which a cable 90 passes. The mounting part 20 protrudes radially along the outer wall of the housing 10. The first shielding ring 30 is disposed in the fixing hole 101 and sleeved on the outer wall of the cable 90. The retaining ring 40 is disposed in the fixing hole 101, and at least partially sleeved between the first shielding ring 30 and the wall of the fixing hole 101. The retaining ring 40 has a first limiting protrusion 43 radially, and the wall of the fixing hole 101 has a limiting groove 1011 corresponding to the first limiting protrusion 43, in which the first limiting protrusion 43 is limited.

[0025] Understandably, the housing 10 forms the external outline of the connector 100 and provides an interface for mounting with external devices. Its main function is to house, secure, and protect all internal components. A through-hole 101 is provided inside the housing 10, within which all internal components (cable 90, first shielding ring 30, retaining ring 40, etc.) are installed. Preferably, the housing 10 is made of metal, thus making the housing 10 itself an effective electromagnetic shield. The mounting portion 20 is the mechanical connection interface between the connector 100 and the external device. It protrudes radially along the outer wall of the housing 10 and is typically flange-shaped. The mounting portion 20 has a through hole, through which fasteners can be inserted to securely connect the mounting portion 20 to the external device. By providing the mounting portion 20 on the housing 10, a stable and reliable mounting point is provided for the connector 100, offering a large load-bearing surface and a stable locking position, allowing for easy fixation to the device panel and enhancing the mechanical stability of the connection. Preferably, the mounting part 20 is integrally formed with the housing 10, thereby improving the stability of the connection between the mounting part 20 and the housing 10. Of course, the mounting part 20 and the housing 10 can be separate, and the mounting part 20 can be detachably or fixedly connected to the housing 10 through common mechanical structures, which is not limited here. The first shielding ring 30 is disposed in the fixing hole 101 and sleeved on the outer wall of the cable 90, forming a tight contact with the cable 90. At the same time, the first shielding ring 30 contacts the hole wall of the fixing hole 101, thereby efficiently guiding the interference signal to the housing 100 of the connector 100, thus significantly improving the shielding performance of the connector, preventing internal signal leakage and resisting external interference intrusion. By providing a retaining ring 40, at least a part of the retaining ring 40 is sleeved between the first shielding ring 30 and the hole wall of the fixing hole 101. Through the action of the inner wall of the retaining ring 40 on the first shielding ring 30, a radial clamping force is applied to the first shielding ring 30, thereby firmly fixing it and preventing its axial movement and rotation, ensuring the continuity of the shielding connection. The retaining ring 40 has a first limiting protrusion 43 arranged radially, which cooperates with the corresponding limiting groove 1011 on the wall of the fixing hole 101 to form a mechanical interlocking structure. After the first limiting protrusion 43 is engaged with the limiting groove 1011, it effectively restricts the circumferential rotation and radial loosening of the retaining ring 40, greatly improving the vibration resistance and long-term reliability of the connector 100. It is understood that the first shielding ring 30 can be sleeved on the outside of the shielding layer of the cable 90. Of course, the first shielding ring 30 can also be sleeved on the outside of the insulation layer of the cable 90, which is not limited here. Preferably, the retaining ring 40 is a plastic retaining ring.

[0026] Furthermore, in one embodiment of the present invention, the outer shell 10 includes a first body 102 and a second body 103, the mounting portion 20 is disposed at one end of the second body 103 adjacent to the first body 102, and the fixing hole 101 includes a first mounting hole 101a and a second mounting hole 101b. The first mounting hole 101a is located inside the first body 102, and the second mounting hole 101b is located inside the second body 103. The first mounting hole 101a and the second mounting hole 101b are coaxial and connected.

[0027] Understandably, the outer casing 10 is a one-piece molded structure, comprising a first main body 102 and a second main body 103 connected sequentially in the axial direction. The mounting portion 20 is located at the end of the second main body 103 adjacent to the first main body 102. The fixing hole 101 correspondingly includes a first mounting hole 101a and a second mounting hole 101b. The first mounting hole 101a is located inside the first main body 102, and the second mounting hole 101b is located inside the second main body 103. The first mounting hole 101a and the second mounting hole 101b are coaxial and connected, together forming a complete channel for the cable 90 to pass through.

[0028] Furthermore, in one embodiment of the present invention, the outer wall of the first main body 102 is provided with a waterproof groove 1021, and a first sealing ring 1022 is provided in the waterproof groove 1021; and / or the outer shell 10 is made of metal.

[0029] Understandably, when the connector 100 is installed, the first body 102 is inserted into the mounting hole of the device panel. A waterproof groove 1021 is provided on the outer wall of the first body 102, and a first sealing ring 1022 is placed within the waterproof groove 1021. After the first body 102 is inserted into the mounting hole of the device panel and the mounting part 20 and the device panel are secured, the first sealing ring 1022 is compressed between the waterproof groove 1021 and the wall of the device panel hole, forming an elastic sealing ring. This effectively prevents external water, moisture, dust, and other contaminants from entering the device through the interface between the connector 100 and the mounting panel. This ensures the long-term safety and reliability of the internal electrical connection under harsh conditions such as humidity, dust, and water exposure. The design of installing the sealing ring within the waterproof groove 1021 facilitates assembly and prevents the sealing ring from falling off or twisting during installation, ensuring the effectiveness and consistency of the seal. By making the outer shell 10 a metal material, the outer shell 10 forms a fully enclosed electromagnetic shield, providing comprehensive protection for internally transmitted signals.

[0030] Furthermore, in one embodiment of the present invention, the first shielding ring 30 includes a first fixing part 31 and a second fixing part 32. The first fixing part 31 is disposed at one end of the second mounting hole 101b near the first mounting hole 101a. The retaining ring 40 is disposed in the second mounting hole 101b. The retaining ring 40 is at least partially sleeved between the second fixing part 32 and the hole wall of the second mounting hole 101b.

[0031] Understandably, the first shielding ring 30 includes a first fixing portion 31 and a second fixing portion 32 that are axially adjacent and integrally formed. The first fixing portion 31 is disposed at one end of the second mounting hole 101b near the first mounting hole 101a, and its outer wall is adapted to fit the hole wall of the second mounting hole 101b. A retaining ring 40 is disposed in the second mounting hole 101b, and its inner hole wall is at least partially sleeved between the outer wall of the second fixing portion 32 and the hole wall of the second mounting hole 101b, thereby forming a radial clamping and positioning of the first shielding ring 30.

[0032] Furthermore, in one embodiment of the present invention, the connector 100 further includes a second shielding ring 50, which is disposed outside the cable 90 and accommodated within the second fixing portion 32.

[0033] Understandably, the second shielding ring 50 is tightly fitted onto the cable 90 and is entirely housed and positioned within the second fixing part 32 of the first shielding ring 30. Understandably, the second shielding ring 50 can be crimped onto the cable 90. Preferably, the second shielding ring 50 is a metal ring. Preferably, the second shielding ring 50 is an open C-ring, a tubular ring, or a braided mesh ring. During installation, the second shielding ring 50 is first crimped onto the cable 90, and then the cable 90 with the second shielding ring 50 fitted onto it is inserted into the second fixing part 32. The inner diameter of the second fixing part 32 is adapted to the outer radial direction of the second shielding ring 50, providing circumferential positioning and radial support for the second shielding ring 50. Understandably, the second shielding ring 50 can be directly fitted onto the insulating outer sheath of the cable 90; of course, the second shielding ring 50 can also be fitted onto the shielding layer of the cable 90, which is not limited here.

[0034] Furthermore, in one embodiment of the present invention, the first fixing part 31 is provided with a limiting groove 311, and the side wall of the limiting groove 311 is provided with a slot 312 along the axial direction; the connector 100 further includes a shielding claw 60, the shielding claw 60 includes an annular part 61 and a plurality of spring pieces 62, the plurality of spring pieces 62 are spaced apart on the outer periphery of the annular part 61, the annular part 61 is disposed in the limiting groove 311 and both ends of the annular part 61 are limited within the slot 312.

[0035] Understandably, the outer wall of the first fixing portion 31 of the first shielding ring 30 is also provided with an annular limiting groove 311, and at least one sidewall of the limiting groove 311 is provided with a slot 312 extending axially; the connector 100 also includes an independent shielding claw 60, which can establish a highly reliable electrical connection between the first shielding ring 30 and the second mounting hole 101b of the connector 100 housing 10. The shielding claw 60 is integrally stamped from a flexible metal sheet, and includes an annular portion 61 and a plurality of spring pieces 62 extending radially outward from the outer periphery of the annular portion 61, the plurality of spring pieces 62 being evenly distributed circumferentially. The annular portion 61 can cooperate with the limiting groove 311 and the slot 312 on the first fixing portion 31 to achieve its own precise fixation and positioning, and provide a common electrical connection point for the plurality of spring pieces 62. The spring tab 62 can elastically deform after being pressed by the wall of the second mounting hole 101b, thereby continuously applying a radially outward contact force to the metal hole wall of the connector 100 housing 10, ensuring that each spring tab 62 can effectively contact the hole wall of the second mounting hole 101b. The limiting groove 311 can provide a radial positioning space for the annular portion 61, preventing the shielding claw 60 from shaking or falling off in the radial direction. By embedding both ends of the annular portion 61 into the slot 312, the shielding claw 60 is firmly locked onto the first fixing portion 31, preventing it from axially moving during subsequent assembly or use.

[0036] Furthermore, in one embodiment of the present invention, the retaining ring 40 includes a base 41 and a first retaining arm 42 and a second retaining arm 44 located at one end of the base 41. The first retaining arm 42 and the second retaining arm 44 are alternately spaced. The first retaining arm 42 has a first length, and the second retaining arm 44 has a second length. The first length is less than the second length. The first retaining arm 42 and the second retaining arm 44 extend along the axial direction. The end of the first retaining arm 42 away from the retaining ring 40 is provided with a first limiting protrusion 43, and the end of the second retaining arm 44 away from the retaining ring 40 is provided with a second limiting protrusion 45. The wall of the second mounting hole 101b is provided with a limiting groove 1011 corresponding to the first limiting protrusion 43, and a limiting portion 1012 corresponding to the second limiting protrusion 45.

[0037] Understandably, the retaining ring 40 adopts an asymmetrical composite retaining arm structure design. It includes an annular base 41 and a first retaining arm 42 and a second retaining arm 44 integrally formed at the same end of the base 41. The first retaining arm 42 and the second retaining arm 44 are alternately spaced along the circumference of the base 41. Both the first retaining arm 42 and the second retaining arm 44 extend away from the base 41 along the axial direction of the connector 100. The first retaining arm 42 has a first limiting protrusion 43 at its free end away from the base 41, and the second retaining arm 44 has a second limiting protrusion 45 at its free end away from the base 41; on the wall of the second mounting hole 101b, a limiting groove 1011 is provided corresponding to the position of the first limiting protrusion 43, and a limiting part 1012 is provided corresponding to the position of the second limiting protrusion 45. By setting the length of the first locking arm 42 to be less than the length of the second locking arm 44, it forms a double-limiting fixation with the limiting groove 1011 and the limiting part 1012 respectively, thereby improving the stability of the connection between the locking ring 40 and the second body 103.

[0038] Furthermore, the connector 100 also includes a second sealing ring 70, which is disposed in the second mounting hole 101b and adjacent to the end of the retaining ring 40 away from the first body 102.

[0039] Understandably, the second sealing ring 70 is provided so that it can be fitted over the cable 90 and pressed tightly into the second mounting hole 101b, with its axial position close to the end of the retaining ring 40 away from the first body 102. This completely isolates the internal components (such as the shielding ring and retaining ring 40) from the external environment, effectively preventing water immersion and dust from entering the second mounting hole 101b from the end away from the first body 102, thus meeting stringent vehicle and environmental requirements.

[0040] Furthermore, the connector 100 also includes a baffle 81 and a retaining ring 82. The baffle 81 is disposed at the end of the second sealing ring 70 away from the first body 102, and the retaining ring 82 is disposed at the end of the baffle 81 away from the first body 102. The second mounting hole 101b has a fixing groove 1013 corresponding to the retaining ring 82. The retaining ring 82 is confined within the fixing groove 1013, so that one end of the retaining ring 82 abuts against the groove wall of the fixing groove 1013, and the other end abuts against the baffle 81. Preferably, the baffle 81 is a metal baffle.

[0041] Understandably, the baffle 81 is an annular plate-shaped component fitted over the cable 90, located at the end of the second sealing ring 70 away from the first body 102, and in direct contact with the end face of the second sealing ring 70. The retaining ring 82 is an elastic retaining ring with an opening, located at the end of the baffle 81 away from the first body 102. The baffle 81, retaining ring 82, and fixing groove 1013 together constitute the tail locking mechanism, preventing the components in the second mounting hole 101b from falling out. Furthermore, the cable 90 includes, from the inside out, a conductor, a first insulating layer, a shielding layer, and a second insulating layer arranged coaxially. The first main body 102 and the first fixing part 31 are sleeved outside the first insulating layer, and the second shielding ring 50 is sleeved outside the shielding layer.

[0042] Understandably, conductors can transmit current or signals. The first insulating layer can wrap around and isolate the central conductor, preventing it from short-circuiting with other parts. The shielding layer can be a metal braided mesh, whose core function is to provide electromagnetic shielding, preventing internal signals from radiating outwards and interfering with other devices, and also blocking external electromagnetic interference from intruding and affecting internal signals. The second insulating layer, as an outer sheath, functions to protect the internal structure from mechanical damage, friction, chemical corrosion, and environmental influences. By fitting the first body 102 and the first fixing part 31 outside the first insulating layer, and fitting the second shielding ring 50 outside the shielding layer, the connection strength between the connector 100 and the cable 90 can be improved, while enhancing the shielding performance.

[0043] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A connector (100), characterized in that, include: The outer casing (10) has a fixing hole (101) inside, through which the cable (90) passes. Mounting part (20), which protrudes radially along the outer wall of the outer shell (10); The first shielding ring (30) is disposed inside the fixing hole (101) and sleeved on the outer wall of the cable (90); A retaining ring (40) is disposed in the fixing hole (101). The retaining ring (40) is at least partially sleeved between the first shielding ring (30) and the wall of the fixing hole (101). The retaining ring (40) is provided with a first limiting protrusion (43) in the radial direction. The wall of the fixing hole (101) is provided with a limiting groove (1011) corresponding to the first limiting protrusion (43). The first limiting protrusion (43) is limited in the limiting groove (1011).

2. The connector (100) as described in claim 1, characterized in that, The outer casing (10) includes a first body (102) and a second body (103). The mounting part (20) is located at one end of the second body (103) near the first body (102). The fixing hole (101) includes a first mounting hole (101a) and a second mounting hole (101b). The first mounting hole (101a) is located inside the first body (102), and the second mounting hole (101b) is located inside the second body (103). The first mounting hole (101a) and the second mounting hole (101b) are coaxial and connected.

3. The connector (100) as described in claim 2, characterized in that: The outer wall of the first main body (102) is provided with a waterproof groove (1021), and a first sealing ring (1022) is provided in the waterproof groove (1021). And / or the outer casing (10) is made of metal.

4. The connector (100) as described in claim 2, characterized in that, The first shielding ring (30) includes a first fixing part (31) and a second fixing part (32). The first fixing part (31) is located at one end of the second mounting hole (101b) near the first mounting hole (101a). The retaining ring (40) is located inside the second mounting hole (101b). The retaining ring (40) is at least partially sleeved between the second fixing part (32) and the wall of the second mounting hole (101b).

5. A connector (100) as described in claim 4, characterized in that, The connector (100) further includes a second shielding ring (50), which is disposed outside the cable (90) and housed within the second fixing part (32).

6. A connector (100) as described in claim 4, characterized in that, The first fixing part (31) is provided with a limiting groove (311) on the outside, and the side wall of the limiting groove (311) is provided with a slot (312) along the axial direction. The connector (100) further includes a shielding claw (60), which includes an annular portion (61) and a plurality of spring pieces (62). The plurality of spring pieces (62) are spaced apart on the outer periphery of the annular portion (61). The annular portion (61) is located in the limiting groove (311) and both ends of the annular portion (61) are limited within the slot (312).

7. A connector (100) as described in claim 2, characterized in that, The retaining ring (40) includes a base (41) and a first retaining arm (42) and a second retaining arm (44) located at one end of the base (41). The first retaining arm (42) and the second retaining arm (44) are alternately spaced. The first retaining arm (42) has a first length and the second retaining arm (44) has a second length. The first length is less than the second length. The first retaining arm (42) and the second retaining arm (44) extend along the axial direction. The end of the first retaining arm (42) away from the retaining ring (40) is provided with a first limiting protrusion (43), and the end of the second retaining arm (44) away from the retaining ring (40) is provided with a second limiting protrusion (45). The second mounting hole (101b) has a limiting groove (1011) corresponding to the first limiting protrusion (43) and a limiting part (1012) corresponding to the second limiting protrusion (45).

8. A connector (100) as described in claim 2, characterized in that: The connector (100) further includes a second sealing ring (70), which is disposed in the second mounting hole (101b) and near the end of the retaining ring (40) away from the first body (102).

9. A connector (100) as described in claim 8, characterized in that, The connector (100) further includes a baffle (81) and a retaining ring (82). The baffle (81) is located at one end of the second sealing ring (70) away from the first body (102). The retaining ring (82) is located at one end of the baffle (81) away from the first body (102). The second mounting hole (101b) has a fixing groove (1013) corresponding to the retaining ring (82). The retaining ring (82) is confined within the fixing groove (1013) so that one end of the retaining ring (82) abuts against the groove wall of the fixing groove (1013) and the other end abuts against the baffle (81).

10. The connector (100) as claimed in claim 5, characterized in that, The cable (90) includes a conductor, a first insulation layer, a shielding layer and a second insulation layer arranged coaxially from the inside to the outside. The first body (102) and the first fixing part (31) are sleeved on the outside of the first insulation layer, and the second shielding ring (50) is sleeved on the outside of the shielding layer.

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