Cable connector and connector assembly
By designing a cable connector with a shielding cavity and insulated connection terminals, the problem of poor grounding and shielding effect of cable connectors in the prior art is solved, efficient shielding and grounding of signals is achieved, and reliability of signal transmission is improved Sex and integrity.
Patent Information
- Application Number
- PCT/CN2024/093047
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-08-14
- Filing Date
- 2024-05-14
- Publication Date
- 2025-02-20
AI Technical Summary
Currently, some cable connectors have poor grounding and shielding effects, which are difficult to meet the requirements of high-speed signal transmission systems for reducing signal interference and signal integrity.
A cable connector is designed, adopting a shielded housing and a connecting terminal structure. The shielded housing has a shielding cavity. The connection terminal is insulated from the shielding housing and is used for electrical properties from the core wire and shielding structure of the cable. Connect to achieve effective shielding and grounding of signals.
Through this design, the signal transmission efficiency and transmission accuracy are significantly improved, the crosstalk between signals is reduced, the grounding and shielding effects of the cable connector are enhanced, and the reliability of high-speed signal transmission is ensured.
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Figure CN2024093047_20022025_PF_FP_ABST
Abstract
Description
Cable connectors and connector assemblies
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on August 14, 2023, with application number 202311023375.5 and invention name “Cable Connector and Connector Assembly”. The entire contents of the Chinese patent application are incorporated herein by reference. Technical Field
[0003] The present application belongs to the field of communication technology, and specifically relates to a cable connector and a connector assembly. Background Art
[0004] With the increasing demand for high-speed, large-capacity transmission equipment, the signal rate of high-speed products continues to increase. The increase in signal rate has brought huge challenges to the design of high-speed links. Since high-speed cables have lower unit length loss than PCBs and higher bandwidth, high-speed cables have begun to gradually replace PCBs, and high-speed cable connectors have gradually become key components of signal transmission systems.
[0005] High-speed cables can be divided into cables with a ground wire and cables without a ground wire. In high-speed product applications, internal cables are increasingly placed close to the chip or directly integrated into the chip package to minimize PCB cable length and reduce system losses. This places stringent requirements on cable size. Cables without a ground wire offer advantages for internal system cabling due to their smaller size and lighter weight. For external system cabling, cables with a ground wire are used.
[0006] However, some current cable connectors have poor grounding and shielding effects.
[0007] Summary of the Invention
[0008] An embodiment of the present application provides a cable connector for connecting to a cable, the cable connector comprising: a shielding shell and a connecting terminal; the shielding shell has a shielding cavity, the connecting terminal is arranged in the shielding cavity and is insulated from the shielding shell, and the connecting terminal is used to electrically connect to the core wire of the cable; the shielding shell is used to electrically connect to the shielding structure of the cable that is arranged on the outside of the core wire.
[0009] An embodiment of the present application further provides a connector assembly, comprising a housing and a plurality of the above-mentioned cable connectors; a plurality of mounting channels are provided in the housing, and the cable connector is passed through each of the mounting channels. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG1 is a schematic structural diagram of a connector assembly and a cable disclosed in an embodiment of the present application;
[0011] FIG2 is a schematic structural diagram of a cable with a ground wire and a cable connector disclosed in an embodiment of the present application;
[0012] FIG3 is a partial schematic diagram of a cable with a ground wire and a cable connector disclosed in an embodiment of the present application;
[0013] FIG4 is a schematic structural diagram of a cable without a ground wire and a cable connector disclosed in an embodiment of the present application;
[0014] FIG5 is a partial schematic diagram of a cable without a ground wire and a cable connector disclosed in an embodiment of the present application;
[0015] FIG6 is a schematic structural diagram of a shielding connector disclosed in an embodiment of the present application;
[0016] FIG7 is a side view of the cable connector disclosed in an embodiment of the present application along a first direction;
[0017] FIG8 is a schematic structural diagram of a housing disclosed in an embodiment of the present application;
[0018] FIG9 is a schematic structural diagram of a cable with cable connectors connected to both ends of the cable disclosed in an embodiment of the present application;
[0019] FIG10 is a schematic structural diagram of a cable disclosed in an embodiment of the present application in which shielding shells are connected to both ends thereof.
[0020] Description of reference numerals:
[0021] 100-cable connector;
[0022] 110 - shielding shell; 111 - shell body; 1111 - first side plate; 1112 - second side plate; 1113 - connecting plate; 1114 - connecting portion; 112 - cover;
[0023] 120-connection terminal;
[0024] 130-shielded connector; 131-sleeve connection portion; 1311-serrated structure; 132-clamping portion;
[0025] 140-elastic contact terminal;
[0026] 150-insulator; 151-first insulating structure; 152-second insulating structure;
[0027] 200-cable; 210-core wire; 220-ground wire; 230-shielding layer;
[0028] 300-housing; 310-installation channel;
[0029] 400- Elastic conductive layer. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0031] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.
[0032] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.
[0033] With reference to Figures 1 to 10, an embodiment of the present application discloses a cable connector 100 for connecting to a cable 200 to facilitate signal transmission and reliable grounding. The cable 200 may be a cable 200 without a ground wire 220 or a cable 200 with a ground wire 220. The cable 200 may include a core wire 210 and a shielding structure, wherein the core wire 210 is used to transmit signals, and the shielding structure is used to transmit induced signals (such as induced current, etc.) generated during the signal transmission process of the core wire 210 to achieve grounding, thereby reducing the interference of the induced signals on the signals transmitted in the core wire 210. The shielding structure may include a ground wire 220 or a shielding layer 230. For example, when the cable 200 is a cable 200 with a ground wire 220, the shielding structure may include the ground wire 220. When the cable 200 is a cable 200 without a ground wire 220, the shielding structure may include a shielding layer 230. In this way, the induced signals can be transmitted through the ground wire 220 or the shielding layer 230, respectively, to facilitate grounding. In addition, the cable 200 may further include an insulating layer and a differential inner conductor, etc. The differential inner conductor is located in the insulating layer. Of course, the specific structure of the cable 200 may refer to related technologies and will not be described in detail here.
[0034] For example, the shielding layer 230 can be a metal layer, such as an aluminum foil layer, a copper foil layer, etc. Of course, it can also be made of other materials. There is no specific limitation on the material of the shielding layer 230, as long as it can achieve grounding. Of course, the above cables 200 can all be high-speed cables.
[0035] The disclosed cable connector 100 includes a shielding shell 110 and a connecting terminal 120 .
[0036] The shielding shell 110 is the basic mounting component of the cable connector 100, providing a mounting base for components such as the connecting terminals 120. In some embodiments, the shielding shell 110 includes a shielding cavity, within which the connecting terminals 120 are disposed. The shielding cavity accommodates the connecting terminals 120, providing a degree of protection for the connecting terminals 120. Furthermore, the shielding shell 110 can shield the connecting terminals 120, and even the connection areas between the connecting terminals 120 and other structures, thereby mitigating signal leakage that could affect efficient and accurate signal transmission, thereby effectively ensuring signal integrity.
[0037] In the embodiment of the present application, the shielding shell 110 can achieve a certain shielding effect on the signal through the shielding cavity to alleviate signal leakage, thereby improving the signal transmission efficiency and transmission accuracy; in addition, the shielding cavity of the shielding shell 110 can also achieve wrap-around shielding, thereby effectively isolating adjacent signal differential pairs, thereby reducing crosstalk between signals and improving signal integrity.
[0038] The connection terminal 120 is an electrical component that is used to electrically connect to the core wire 210 of the cable 200. In addition, it can also provide a mechanical connection. On the one hand, it can fix the end of the core wire 210 of the cable 200. On the other hand, it can also transmit signals between the core wire 210 and the connection terminal 120 to ensure good signal transmission. For example, the connection terminal 120 can include a connecting piece, a connecting bar, and other structures to facilitate signal transmission.
[0039] In addition, the connection terminal 120 is located in the shielding shell 110, the differential inner conductor is located in the insulating layer, and the connection terminal 120 and the differential inner conductor are connected by welding.
[0040] In order to prevent the signal on the connecting terminal 120 from being transmitted to the shielding shell 110 and leaking out through the shielding shell 110, in an embodiment of the present application, insulation is provided between the connecting terminal 120 and the shielding shell 110. In this way, it can effectively prevent the signal on the connecting terminal 120 from being transmitted to the shielding shell 110 and leaking out from the shielding shell 110, thereby ensuring efficient and accurate transmission of the signal.
[0041] For example, an insulating material can be provided between the connection terminal 120 and the shielding housing 110 to separate the connection terminal 120 from the shielding housing 110. This prevents electrical conduction between the connection terminal 120 and the shielding housing 110, thereby isolating signal transmission and effectively mitigating signal leakage. The insulating material can be an insulating layer, an insulating member, an insulating film, etc., and can be set according to actual operating conditions.
[0042] Considering that in some cases, reliable grounding is required through the shielding shell 110 to improve the reliability of signal transmission of the cable 200. Based on this, the shielding shell 110 can be made of a metallic conductive material or a non-metallic conductive material to conduct electricity through the shielding shell 110, thereby reliably grounding the cable 200 through the shielding shell 110.
[0043] In the embodiment of the present application, the shielding shell 110 can be used to electrically connect to the shielding structure of the cable 200 provided on the outside of the core wire 210 to facilitate grounding.
[0044] In an embodiment of the present application, the connecting terminal 120 can be electrically connected to the core wire 210 of the cable 200 to facilitate signal transmission; the shielding shell 110 can be connected to the shielding structure of the cable 200 so that the induced signal (such as induced current, etc.) can be transmitted to the shielding shell 110 through the shielding structure during the signal transmission process of the core wire 210, thereby being grounded through the shielding shell 110, thereby achieving reliable grounding of the cable 200, so as to reduce the interference of the induced signal on the signal transmitted in the core wire 210, and ensure the accuracy of the signal transmitted in the core wire 210; in addition, the shielding shell 110 can achieve wrap-around shielding through the shielding cavity, which greatly improves the signal shielding effect, thereby effectively isolating adjacent signal differential pairs, thereby reducing crosstalk between signals and improving signal integrity.
[0045] In some embodiments, when the cable 200 is a cable 200 with a ground wire 220, at least one ground wire 220 may extend from the interior of the cable 200 for grounding. When one end of the cable 200 extends into the shielding shell 110 of the cable connector 100, the ground wire 220 also extends into the shielding shell 110.
[0046] In order to reliably ground the ground wire 220, in the embodiment of the present application, the shielding shell 110 may be provided with a connecting portion 1114, which is used to mechanically and electrically connect to the ground wire 220 of the cable 200. Based on this, the connecting portion 1114 can reliably connect the ground wire 220 of the cable 200 to the shielding shell 110. On the one hand, it ensures that the ground wire 220 does not move arbitrarily within the shielding shell 110. On the other hand, it can also ensure a reliable electrical connection, so that the ground wire 220 can be grounded through the shielding shell 110, and further, the induced signals (such as induced current, etc.) generated in the ground wire 220 can be eliminated, thereby improving the reliability of the signal transmitted in the core wire 210 of the cable 200.
[0047] For example, ground wire 220 and connection portion 1114 can be fixedly connected, such as by welding, bonding, or riveting. Alternatively, a detachable connection can be provided, such as by screwing, snapping, or plugging. The specific connection method can be selected based on actual operating conditions and is not specifically limited herein. Furthermore, connection portion 1114 can have a surface structure, a groove structure, a hole structure, a protrusion structure, or the like. The specific shape is not limited, as long as it can reliably connect to one end of ground wire 220.
[0048] Based on the above configuration, the embodiment of the present application can be mechanically and electrically connected to the ground wire 220 of the cable 200 through the connecting portion 1114, so that the cable connector 100 can provide a better conductive effect for the cable 200 with the ground wire 220, thereby enabling the cable 200 to be reliably grounded to eliminate the induced signal generated in the ground wire 220, and can also have a certain lightning protection effect, thereby ensuring the reliability of the signal transmission of the cable 200.
[0049] 2 and 3 , in some embodiments, the connection portion 1114 may include a groove formed in a sidewall of the shielding shell 110, the groove being configured to receive and secure the end of the ground wire 220. Optionally, the groove width may be equal to the outer diameter of the ground wire 220 to facilitate entry of the ground wire 220. Alternatively, the groove width may be slightly smaller than the outer diameter of the ground wire 220, e.g., the difference may be in the range of 0.1 to 0.5 mm. In this case, the ground wire 220 may be squeezed into the groove by external force, thereby ensuring secure assembly between the ground wire 220 and the groove and preventing the ground wire 220 from falling out of the groove.
[0050] To prevent the ground wire 220 from falling out of the groove, after the ground wire 220 is assembled into the groove, welding, bonding, riveting, screwing and other operations can be performed to firmly fix the ground wire 220 in the groove to prevent the ground wire 220 from falling out of the groove and affecting the grounding reliability.
[0051] In other embodiments, the connection portion 1114 may include a through hole formed in the side wall of the shielding shell 110, which is used to pass through and secure the end of the ground wire 220. Optionally, the diameter of the through hole may be equal to the outer diameter of the ground wire 220 to provide a clamping effect on the ground wire 220.
[0052] To prevent the ground wire 220 from falling out of the through hole, after the ground wire 220 is inserted into the through hole, operations such as joining, bonding, riveting, and screwing can be performed to firmly fix the ground wire 220 in the through hole to prevent the ground wire 220 from falling out of the through hole and affecting the grounding reliability.
[0053] In a more specific embodiment, the cable 200 may include two ground wires 220. Accordingly, two opposing side walls of the shielding housing 110 are provided with connecting portions 1114, respectively, to connect the ends of the two ground wires 220 via the two connecting portions 1114, thereby further improving signal transmission reliability. Of course, this is not a limitation, and the number and arrangement of the connecting portions 1114 may be determined based on the number of ground wires 220.
[0054] In other embodiments, when the cable 200 is a cable 200 without a ground wire 220, a shielding layer 230 may be provided on the outside of the core wire 210, and the shielding layer 230 may be used for grounding. When one end of the cable 200 extends toward the shielding shell 110 to which the cable 200 is connected, the shielding layer 230 also extends toward the shielding shell 110. In order to ground the shielding layer 230, in the embodiment of the present application, the cable connector 100 may further include a shielding connector 130. The shielding connector 130 is provided on the outside of the cable 200 and is electrically connected to the shielding layer 230 of the cable 200. At least a portion of the shielding connector 130 extends into the shielding cavity and is mechanically and electrically connected to the shielding shell 110. Based on this, the shielding connector 130 can reliably connect the shielding layer 230 of the cable 200 to the shielding shell 110, thereby achieving grounding of the shielding layer 230 through the shielding connector 130, thereby eliminating the induced current generated in the shielding layer 230, thereby improving the reliability of signal transmission of the cable 200. Exemplarily, the shielding connector 130 may be made of a conductive material, such as a metallic conductive material or a non-metallic conductive material, and the specific material is not limited.
[0055] Based on the above settings, the embodiment of the present application can be electrically connected to the shielding layer 230 of the cable 200 through the shielding connector 130. In this way, through the setting of the shielding connector 130, the cable connector 100 can provide a better conductor effect for the cable 200 without the ground wire 220, thereby achieving reliable grounding.
[0056] In addition, in order to make the cable connector 100 suitable for both cables 200 with a ground wire 220 and cables 200 without a ground wire 220, in the cable connector 100 of the embodiment of the present application, the shielding shell 110 may be provided with a connecting portion 1114, and the cable connector 100 may include a shielding connector 130. In this way, through the combination of the connecting portion 1114 and the shielding connector 130, it can be applied to cables 200 with a ground wire 220 to achieve a reliable connection between the connecting portion 1114 and the ground wire 220, and it can also be applied to cables 200 without a ground wire 220 to achieve a reliable connection between the shielding connector 130 and the shielding layer 230. In this way, the problem that some cable connectors 100 in the related art are only suitable for a single type of cable 200 can be effectively alleviated, and a better grounding effect can be guaranteed.
[0057] 4 to 6 , in some embodiments, the shielding connector 130 may include a sleeve portion 131 and a clamping portion 132 connected to each other, wherein the sleeve portion 131 is sleeved on the outside of the cable 200 and connected to the shielding layer 230, and the clamping portion 132 is clamped to the outside of the cable 200. Specifically, the outermost side of the cable 200 may be provided with a layer structure such as an outer sheath, and the shielding layer 230 is located inside the outer sheath. When the shielding connector 130 is installed, the sleeve portion 131 can be firmly sleeved on the outside of the outer sheath of the cable 200 to ensure the stability and firmness of the connection between the shielding connector 130 and the cable 200, and prevent the shielding connector 130 from moving relative to the cable 200 or detaching from the cable 200. In addition, the sleeve portion 131 is also connected to the shielding layer 230 to achieve electrical conduction and facilitate grounding.
[0058] In addition, when installing the cable 200 and the shielding shell 110, since the sleeve portion 131 is sleeved on the outside of the cable 200, the end of the cable 200 and the sleeve portion 131 extend into the shielding cavity of the shielding shell 110 together. At the same time, the shielding shell 110 can also limit the sleeve portion 131, such as by clamping, crimping, etc., to prevent the shielding connector 130 from detaching from the shielding shell 110, and the sleeve portion 131 can also separate the outside of the cable 200 from the shielding shell 110, thereby avoiding direct fixation of the shielding shell 110 and the cable 200 and causing damage to the outside of the cable 200.
[0059] Exemplarily, the sleeve portion 131 can be a closed sleeve, casing or other structure, or a sleeve structure with an opening, which is sleeved on the outside of the cable 200 to protect the cable 200 and facilitate connection with the shielding layer 230.
[0060] The clamping portion 132 is clamped to the outer side of the cable 200 to improve the firmness and stability of the connection between the shielding connector 130 and the cable 200 and prevent the shielding connector 130 from being separated from the cable 200 .
[0061] Exemplarily, the clamping portion 132 may be a closed casing or sleeve, or alternatively, may be a clamping structure with an opening, which is clamped on the cable 200 to prevent the cable 200 from moving around at will.
[0062] 6 , in some embodiments, the inner wall of the sleeve portion 131 may be provided with a plurality of sawtooth structures 1311, each extending along the axial direction of the shield connector 130. The provision of the plurality of sawtooth structures 1311 can enhance contact with the shielding layer 230, thereby improving grounding reliability.
[0063] In some embodiments, the shielding connector 130 and the shielding layer 230 may be welded or riveted to ensure a secure and stable connection between the shielding connector 130 and the shielding layer 230, thereby ensuring reliable signal transmission. Of course, other connection methods may be used between the shielding connector 130 and the shielding layer 230, as long as they ensure secure connection and reliable signal transmission. The specific method is not limited.
[0064] In other embodiments, the shielding connector 130 may be provided with an elastic connection end that elastically contacts the shielding layer 230. Thus, under the elastic action, good contact between the shielding connector 130 and the shielding layer 230 can be ensured, thereby ensuring stable and reliable signal transmission. For example, the sleeve portion 131 may be provided with a spring structure that elastically contacts the shielding layer 230.
[0065] Referring to FIG4 , to further improve the reliability of signal transmission, the sidewall of the shielding shell 110 may be provided with an elastic contact terminal 140, which is used to elastically connect to the shielding layer 230 or the shielding connector 130. Specifically, when one end of the cable 200 is connected to the shielding shell 110 via the shielding connector 130, the elastic contact terminal 140 elastically contacts the shielding connector 130, thereby ensuring the reliability and stability of the connection between the shielding connector 130 and the shielding shell 110. This facilitates the electrical connection of the shielding layer 230 to the shielding shell 110 via the shielding connector 130 and the elastic contact terminal 140, thereby achieving reliable grounding and improving the reliability of signal transmission by the cable 200.
[0066] Of course, the elastic contact terminal 140 can also be in direct contact with the shielding layer 230. In this case, a reliable electrical connection between the shielding layer 230 and the shielding shell 110 can be achieved through the elastic terminal, and reliable grounding can be achieved, thereby improving the reliability of signal transmission by the cable 200.
[0067] In addition, the elastic contact terminal 140 can also be in elastic contact with the shielding layer 230 and the shielding connector 130 at the same time, thereby increasing the electrical conduction path and further achieving reliable grounding of the shielding layer 230 to improve the reliability of signal transmission of the cable 200.
[0068] In order to extend from both sides into the shielding shell 110 for connection, in the embodiment of the present application, the shielding shell 110 can be penetrated along a first direction, where the first direction is the direction in which the cable 200 extends within the shielding shell 110. Specifically, the cable 200 can extend from the first end of the shielding shell 110 in the first direction into the interior of the shielding shell 110, so that the core wire 210 is connected to the connection terminal 120, and the ground wire 220 or the shielding layer 230 is connected to the shielding shell 110. In addition, the second end of the shielding shell 110 in the first direction can be used to connect to other electrical components, such as a plug, the end of a cable, etc., to facilitate signal transmission.
[0069] Referring to Figures 2 to 5, in some embodiments, the shielding shell 110 may include a shell body 111 and a cover body 112, and the cover body 112 is connected to a side opening of the shell body 111 for sealing. In this way, the shell body 111 and the cover body 112 are connected in a coordinated manner to achieve full-enclosed shielding of the signal to reduce signal leakage and ensure signal integrity.
[0070] The shell body 111 may include a first side panel 1111 and a second side panel 1112 extending in a first direction, respectively, and a connecting panel 1113 connecting the first side panel 1111 and the second side panel 1112. The cover body 112 is spaced apart from the connecting panel 1113 and is connected to the first side panel 1111 and the second side panel 1112, respectively. Based on the above arrangement, a long strip structure with a concave cross-section can be formed by the first side panel 1111, the second side panel 1112, and the connecting panel 1113. The cover body 112 is connected to the notch of the long strip structure to close the notch, thereby forming a long channel to accommodate the connection terminal 120 and allow components such as the cable 200 and the plug to pass through. Based on the above arrangement, the shell body 111 and the cover body 112 cooperate to accommodate the connection terminal 120 and provide protection for the connection terminal 120.
[0071] Illustratively, the cross section of the shell body 111 may be U-shaped. Of course, it may also be other shapes, which are not specifically limited here.
[0072] Optionally, a first card slot may be provided at one end of the connecting plate 1113 along the first direction, and a second card slot may be provided at the same end of the cover body 112 along the first direction. After the cover body 112 is connected with the shell body 111, the first card slot is opposite to the second card slot, and a card connection space is formed between the two. The cable 200 or the shielding connector 130 can be passed through the card connection space. In this way, the outer side of the cable 200 or the shielding connector 130 can be carded through the cooperation of the first card slot and the second card slot to ensure that the cable 200 or the shielding connector 130 and the shielding shell 110 will not move relative to each other.
[0073] In addition, one end of the elastic contact terminal 140 is connected to the cover body 112, and the other end extends obliquely toward the shell body 111. In this way, when the cable 200 or the shielding connector 130 extends into the shielding cavity, under the elastic action, the other end of the elastic contact terminal 140 can elastically press the shielding layer 230 or the shielding connector 130 of the cable 200, so that a reliable connection between the shielding shell 110 and the shielding layer 230 or the shielding connector 130 can be achieved through the elastic connection terminal 120, and then reliable grounding can be achieved to improve the reliability of signal transmission by the cable 200.
[0074] In other embodiments, the elastic contact terminal 140 can also be connected to at least one of the first side plate 1111, the second side plate 1112 and the connecting plate 1113. In this case, the reliable connection between the elastic contact terminal 140 and the shielding layer 230 or the shielding connector 130 can also be guaranteed.
[0075] In addition, the shielding shell 110 can also be integrally formed by bending and dovetail grooves.
[0076] Referring to FIG7 , in an embodiment of the present application, the cable connector 100 may further include an elastic conductive layer 400, which is used to connect to the outside of the shielding layer 230 and elastically contact the inner wall of the shielding shell 110. The elastic conductive layer 400 can reliably connect the shielding layer 230 to the shielding shell 110, thereby improving the reliability of signal transmission between the shielding layer 230 and the shielding shell 110, thereby reliably grounding the shielding layer 230. The elastic conductive layer 400 can be made of a material that is both conductive and elastic. For example, the elastic conductive layer 400 can be conductive foam, conductive rubber, etc. Of course, it can also be other materials, which are not specifically limited here.
[0077] 3 and 5 , to achieve insulation between the connecting terminal 120 and the shielding shell 110, the cable connector 100 may further include an insulator 150. The insulator 150 is detachably disposed within the shielding cavity, and the connecting terminal 120 is disposed on the insulator 150. Thus, the insulator 150 can both secure the connecting terminal 120 and separate the connecting terminal 120 from the shielding shell 110, thereby preventing electrical conduction between the connecting terminal 120 and the shielding shell 110, thereby ensuring normal signal transmission and good grounding.
[0078] For example, the insulator 150 may be a separate component. When the connection terminal 120 needs to be disassembled, the insulator 150 may be separated from the shielding shell 110 to facilitate disassembly of the connection terminal 120 .
[0079] In other embodiments, the connection terminal 120 can be separated from the shielding shell 110 by injecting an insulating medium into the shielding shell 110. After the insulating medium solidifies, an insulator 150 is formed. This method can also separate the connection terminal 120 from the shielding shell 110 and fix the connection terminal 120.
[0080] In the embodiment of the present application, the insulator 150 may include a first insulating structure 151 and a second insulating structure 152, wherein the first insulating structure 151 and the second insulating structure 152 are detachably connected, and at least one of the first insulating structure 151 and the second insulating structure 152 is detachably connected to the shielding shell 110. Based on this, the first insulating structure 151 and the second insulating structure 152 cooperate to fix the connecting terminal 120 and separate the connecting terminal 120 from the shielding shell 110, and at the same time, it can also facilitate the removal of the connecting terminal 120 from the shielding shell 110.
[0081] For example, the first insulating structure 151 and the second insulating structure 152 can be connected by plug-in, snap-fit, or screw-fit. Of course, other detachable connection methods are also possible and are not specifically limited here. Furthermore, at least one of the first insulating structure 151 and the second insulating structure 152 can be connected to the shielding shell 110 by snap-fit, screw-fit, or the like to facilitate assembly and disassembly.
[0082] In addition to the above-mentioned split structure, the insulator 150 can also be an integrated structure. In this case, the connection terminal 120 can also be fixed and the connection terminal 120 can be easily disassembled and assembled. In addition, the manufacturing cycle of the insulator 150 can also be shortened.
[0083] Based on the above-mentioned cable connector 100, the embodiment of the present application further discloses a connector assembly. Referring to Figures 1 to 10, the disclosed connector assembly includes a housing 300 and a plurality of the above-mentioned cable connectors 100. The housing 300 is provided with a plurality of mounting channels 310, each of which is provided with a cable connector 100. This arrangement allows the plurality of cable connectors 100 to be installed in a one-to-one correspondence with the corresponding mounting channels 310, thereby enabling the plurality of cable connectors 100 to be fixedly installed simultaneously.
[0084] Illustratively, a plurality of cable connectors 100 are arranged in an array within the housing 300 , such as a rectangular array, a circular array, etc. Of course, other arrangements are also possible, which are not specifically limited here.
[0085] In addition, the housing 300 may be made of plastic to prevent electrical conduction between the shielding shell 110 and the housing 300 .
[0086] In the embodiment of the present application, the assembly steps of the connector assembly are as follows:
[0087] 1. For a cable 200 without a ground wire 220, first remove the outer sheath of the cable 200 to expose the shielding layer 230, and then fix the shielding connector 130 to the shielding layer 230, such as by riveting or welding, so that the shielding layer 230 and the shielding connector 130 are in reliable contact; for a cable 200 with a ground wire 220, first remove the outer sheath of the cable 200 to expose the ground wire 220 (of course, the aluminum foil layer can also be exposed).
[0088] 2. Fix the differential inner conductor of the cable 200 and the connection terminal 120 together, such as by welding.
[0089] 3. Assemble and securely connect (e.g., by welding) the shell body 111 and the cover body 112. For a cable 200 with a ground wire 220, the ground wire 220 needs to be securely connected to the connecting portion 1114 first, e.g., by welding.
[0090] 4. Assemble multiple cable connectors 100 in rows and columns into multiple mounting channels 310 of the housing 300 to form a complete connector assembly.
[0091] Example 1:
[0092] The connector assembly includes multiple cable connectors 100 that can accommodate both cables 200 without a ground wire 220 and cables 200 with a ground wire 220. As shown in Figure 1, the cable connectors 100 in the connector assembly can be arranged in an array of four rows and six columns. Three columns are suitable for cables 200 with a ground wire 220, connecting to the cable connectors 100 near the chip; the remaining three columns are suitable for cables 200 without a ground wire 220, connecting to external cables 200. This allows for more flexible application scenarios in system applications.
[0093] Example 2:
[0094] Referring to Figures 2 and 7 , when the cable connector 100 is used with a cable 200 without a ground wire 220, a conductive foam can be optionally wrapped around the outside of the shielding layer 230. The conductive foam is an elastic material with an adhesive backing on one side for bonding to the shielding layer 230 and an elastic contact surface on the other side to the inner wall of the shielding shell 110, thereby achieving a common ground connection between the cable 200 and the cable connector 100. It should be noted that in this embodiment, the shielding shell 110 does not need to be equipped with additional elastic contact terminals 140 to contact the shielding layer 230, thereby simplifying the structure.
[0095] Example 3:
[0096] 9 and 10 , a cable connector 100 is connected to each end of a cable 200. The cables 200 may be entirely equipped with a ground wire 220, entirely without a ground wire 220, or partially equipped with a ground wire 220 and partially without a ground wire 220. Furthermore, the shielding shell 110 of each cable connector 100 may or may not have a resilient contact terminal 140. Alternatively, the shielding shell 110 of one cable connector 100 may have a resilient contact terminal 140 while the shielding shell 110 of the other cable connector 100 may not have a resilient contact terminal 140.
[0097] To sum up, the cable connector 100 in the embodiment of the present application can be applied to high-speed cable systems to realize the interconnection of high-speed signals, and can be flexibly used in conjunction with cables 200 with ground wires 220 and cables 200 without ground wires 220, and is suitable for a variety of scenarios, thereby improving the scope of application and versatility of the cable connector 100. In addition, full-enclosed shielding can be achieved through the shielding shell 110, thereby effectively isolating adjacent signal differential pairs, thereby reducing crosstalk between signals and improving signal integrity.
[0098] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.
Claims
1. A cable connector for connecting to a cable (200), wherein: The cable connector (100) comprises: a shielding shell (110) and a connecting terminal (120); The shielding shell (110) has a shielding cavity, the connecting terminal (120) is arranged in the shielding cavity and is insulated from the shielding shell (110), and the connecting terminal (120) is used to electrically connect to the core wire (210) of the cable (200); The shielding shell (110) is used to be electrically connected to a shielding structure of the cable (200) and arranged outside the core wire (210).
2. The cable connector according to claim 1, wherein: The shielding shell (110) is provided with a connecting portion (1114), the shielding structure includes a ground wire (220), and the connecting portion (1114) is used to mechanically and electrically connect to the ground wire (220).
3. The cable connector according to claim 1 or 2, wherein: The cable connector (100) further comprises a shielding connector (130), wherein the shielding connector (130) is mechanically connected to the outer side of the cable (200), the shielding structure comprises a shielding layer (230), the shielding connector (130) is used to be electrically connected to the shielding layer (230), and at least a portion of the shielding connector (130) extends into the shielding cavity and is mechanically and electrically connected to the shielding shell (110).
4. The cable connector according to claim 3, wherein: The shielding connector (130) comprises a sleeve connection portion (131) and a clamping portion (132) connected to each other; The sleeve portion (131) is sleeved on the outside of the cable (200) and is electrically connected to the shielding layer (230), and the clamping portion (132) is clamped on the outside of the cable (200).
5. The cable connector according to claim 4, wherein: The inner wall of the sleeve portion (131) is provided with a plurality of sawtooth structures (1311), and the plurality of sawtooth structures (1311) respectively extend along the axial direction of the shielding connector (130).
6. The cable connector according to claim 3, wherein: The shielding connector (130) is used for welding or riveting with the shielding layer (230); Alternatively, the shielding connector (130) is provided with an elastic connection end, and the elastic connection end is in elastic contact with the shielding layer (230).
7. The cable connector according to claim 3, wherein: The side wall of the shielding shell (110) is provided with an elastic contact terminal (140), and the elastic contact terminal (140) is used to elastically contact the shielding layer (230) or the shielding connector (130).
8. The cable connector according to claim 7, wherein: The shielding shell (110) is penetrated along a first direction, and comprises a shell body (111) and a cover body (112); the shell body (111) comprises a first side plate (1111) and a second side plate (1112) respectively extending along the first direction, and a connecting plate (1113) connecting the first side plate (1111) and the second side plate (1112); the cover body (112) is spaced apart from the connecting plate (1113), and is respectively connected to the first side plate (1111) and the second side plate (1112); One end of the elastic contact terminal (140) is connected to the cover body (112), and the other end extends obliquely toward the shell body (111).
9. The cable connector according to claim 3, wherein: The cable connector (100) further comprises an elastic conductive layer (400), wherein the elastic conductive layer (400) is used to be connected to the outside of the shielding layer (230) and to be in elastic contact with the inner wall of the shielding shell (110).
10. The cable connector according to claim 1, wherein: The cable connector (100) further comprises an insulator (150), wherein the insulator (150) is detachably disposed in the shielding cavity, and the connecting terminal (120) is disposed on the insulator (150).
11. The cable connector according to claim 10, wherein: The insulator (150) comprises a first insulating structure (151) and a second insulating structure (152), the first insulating structure (151) and the second insulating structure (152) are detachably connected, and at least one of the first insulating structure (151) and the second insulating structure (152) is detachably connected to the shielding shell (110); Alternatively, the insulator (150) is an integral structure.
12. A connector assembly, comprising a housing (300) and a plurality of cable connectors (100) according to any one of claims 1 to 11; A plurality of installation channels (310) are provided in the housing (300), and the cable connector (100) is inserted into each installation channel (310).
Citation Information
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