CN116526222B - Cable assembly - Google Patents
Cable assembly Download PDFInfo
- Publication number
- CN116526222B CN116526222B CN202310793152.0A CN202310793152A CN116526222B CN 116526222 B CN116526222 B CN 116526222B CN 202310793152 A CN202310793152 A CN 202310793152A CN 116526222 B CN116526222 B CN 116526222B
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- Prior art keywords
- cable
- connector
- sealing
- shielding shell
- electromagnetic shielding
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- 238000007789 sealing Methods 0.000 claims abstract description 125
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
- H01R13/65912—Specific features or arrangements of connection of shield to conductive members for shielded multiconductor cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
- H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
Abstract
The application belongs to the technical field of cable structural design, and particularly relates to a cable assembly. The cable assembly comprises a cable, a connector, an electromagnetic shielding shell and a conductive sealing piece, wherein a threading space is formed in the electromagnetic shielding shell, a first opening and a second opening are formed in the threading space, a first end of the cable is connected with the electromagnetic shielding shell and extends into the threading space through the first opening, the connector is connected with the electromagnetic shielding shell and covers the second opening, the first end of the cable is electrically connected with the connector, the conductive sealing piece is located outside the threading space and comprises a first sealing part and a second sealing part, the first sealing part is filled in a gap between the electromagnetic shielding shell and the cable in a sealing mode, the first sealing part is electrically contacted with a shielding layer of the cable, and the second sealing part is filled in a gap between the electromagnetic shielding shell and the connector in a sealing mode. The application can be beneficial to solving the problem of electric transmission performance among all electric elements of the cable assembly which are easy to interfere by electromagnetic waves.
Description
Technical Field
The application belongs to the technical field of cable structural design, and particularly relates to a cable assembly.
Background
The conventional cable assembly generally includes a cable, a connector and a metal housing, wherein the connector is connected with a first end of the metal housing, the cable passes through a second end of the metal housing and is electrically connected with the connector, and the metal housing is an electromagnetic interference protection body for performing metal shielding protection on a connection part between the connector and the cable.
However, the conventional cable assembly has gaps between the connector and the metal housing and between the metal housing and the cable, from which electromagnetic waves may enter the inside of the metal housing, thereby interfering with the electrical transmission performance between the electrical components of the cable assembly, which may reduce the performance of the cable assembly.
Disclosure of Invention
The embodiment of the application aims to provide a cable assembly, which can be beneficial to solving the problem that electromagnetic waves are easy to interfere with the electrical transmission performance among electrical elements of the cable assembly.
In order to solve the technical problems, the application is realized as follows:
the embodiment of the application provides a cable assembly, which comprises a cable, a connector, an electromagnetic shielding shell and a conductive sealing element,
the electromagnetic shielding shell is internally provided with a threading space which is provided with a first opening and a second opening, the first end of the cable is connected with the electromagnetic shielding shell and extends into the threading space through the first opening, the connector is connected with the electromagnetic shielding shell and covers the second opening, the first end of the cable is electrically connected with the connector,
the conductive sealing piece is located outside the threading space, and comprises a first sealing part and a second sealing part, the first sealing part is filled in the gap between the electromagnetic shielding shell and the cable in a sealing way, the first sealing part is electrically contacted with the shielding layer of the cable, and the second sealing part is filled in the gap between the electromagnetic shielding shell and the connector in a sealing way.
In the embodiment of the application, the first sealing part which is in electrical contact with the shielding layer of the cable is filled in the gap between the electromagnetic shielding shell and the cable in a sealing manner, and the second sealing part is filled in the gap between the electromagnetic shielding shell and the connector, namely, the threading space is a closed space under the surrounding of the connector, the electromagnetic shielding shell, the cable, the first sealing part and the second sealing part, so that electromagnetic waves can be prevented from entering the threading space in the electromagnetic shielding shell from the gap between the electromagnetic shielding shell and the cable and the gap between the electromagnetic shielding shell and the connector, and the problem that the electromagnetic waves enter the threading space to interfere with the electrical transmission performance among all components of the cable assembly is solved. In addition, the conductive sealing member is located outside the threading space, that is, the first sealing portion and the second sealing portion are located outside the threading space, so that the distance between the electrical element located in the threading space and the conductive sealing member can be increased, and interference of electromagnetic waves passing through the conductive sealing member on the electrical element in the threading space can be reduced.
Drawings
FIG. 1 is a cross-sectional view of a cable assembly disclosed in an embodiment of the present application;
FIG. 2 is an enlarged schematic view of the application at A in FIG. 1;
FIG. 3 is an enlarged schematic view of the present application at B in FIG. 1;
FIG. 4 is a cross-sectional view of a cable assembly disclosed in another embodiment of the present application;
FIG. 5 is an enlarged schematic view of the present application at C in FIG. 4;
fig. 6 is an enlarged schematic view of the application at D in fig. 4.
Reference numerals illustrate:
100-cable, 110-shielding layer, 111-second shielding part, 120-outer sheath, 200-connector, 210-connector main body, 211-annular flange, 220-circuit board, 300-electromagnetic shielding shell, 400-conductive sealing piece, 410-first sealing part, 411-mounting part, 412-limit surface, 420-second sealing part, 421-wide part, 430-connecting part, 440-first reinforcing part, 450-second reinforcing part, 500-insulating inner die, 600-magnetic ring and 700-outer shell.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that some, but not all embodiments of the application are described. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The cable assembly provided by the embodiment of the application is described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
As shown in fig. 1 to 6, the embodiment of the present application discloses a cable assembly including a cable 100, a connector 200, an electromagnetic shield case 300, and a conductive seal 400. Alternatively, the electromagnetic shielding shell 300 may be a metal shell, which is an electromagnetic shielding body of the cable assembly, and is respectively conducted with the shielding layer 110 of the cable 100 and the metal shell of the connector 200, so as to perform metal shielding protection on the electrical connection position of the cable 100 and the connector 200; the conductive sealing member 400 may be a conductive member having a sealing function such as conductive paste, conductive plastic, or the like.
The electromagnetic shielding shell 300 has a threading space therein, the threading space has a first opening and a second opening, the first end of the cable 100 is connected with the electromagnetic shielding shell 300 and extends into the threading space through the first opening, the connector 200 is connected with the electromagnetic shielding shell 300 and covers the second opening, and the first end of the cable 100 is electrically connected with the connector 200. Specifically, the threading space penetrates through the electromagnetic shielding shell 300, the electromagnetic shielding shell 300 has a crimp end disposed away from the connector 200, after the first end of the cable 100 extends into the threading space through the first opening, the first end of the cable 100 is disposed opposite to the crimp end of the electromagnetic shielding shell 300, and then the crimp end can be connected to the first end of the cable 100 by crimping, so that the electromagnetic shielding shell 300 can be fixed to the first end of the cable 100; the connection area between the connector 200 and the cable 100 may be located in the threading space or may be located outside the threading space, which is not limited by the present application.
Alternatively, a part of the connector 200 may be located inside the threading space, another part of the connector 200 may be located outside the threading space, an end surface of the part of the connector 200 located outside the threading space is attached to an end surface of the electromagnetic shielding shell 300, a second sealing portion 420 described below is filled in a gap between the two end surfaces in a sealing manner, and the second sealing portion 420 may be an annular structural member; of course, the connector 200 may be completely located outside the threading space, and may be sleeved outside the electromagnetic shielding shell 300, or the end surface of the connector 200 is attached to the end surface of the electromagnetic shielding shell 300, and the present application does not limit the positional relationship between the connector 200 and the electromagnetic shielding shell 300.
The conductive seal 400 is located outside the threading space, and the conductive seal 400 includes a first seal 410 and a second seal 420, the gap between the electromagnetic shield case 300 and the cable 100 is internally sealed and filled with the first seal 410, and the first seal 410 is in electrical contact with the shielding layer 110 of the cable 100, and the gap between the electromagnetic shield case 300 and the connector 200 is internally sealed and filled with the second seal 420. Specifically, the first sealing part 410 may fill at least a portion of a gap between the electromagnetic shield case 300 and the cable 100 in a depth direction thereof, so that the threading space may be prevented from communicating with an external environment through the gap; the second sealing part 420 may fill at least a portion of a gap between the electromagnetic shield case 300 and the connector 200 in a depth direction thereof, so that the threading space may be prevented from communicating with an external environment through the gap.
In the embodiment of the application, the first sealing part 410 electrically contacting the shielding layer 110 of the cable 100 is sealed and filled in the gap between the electromagnetic shielding shell 300 and the cable 100, and the second sealing part 420 is filled in the gap between the electromagnetic shielding shell 300 and the connector 200, that is, the threading space is a closed space around the connector 200, the electromagnetic shielding shell 300, the cable 100, the first sealing part 410 and the second sealing part 420, so that electromagnetic waves can be prevented from entering the threading space in the electromagnetic shielding shell 300 from the gap between the electromagnetic shielding shell 300 and the cable 100 and the gap between the electromagnetic shielding shell 300 and the connector 200, and further, the problem that the electromagnetic waves enter the threading space to interfere with the electrical transmission performance among all components of the cable assembly is solved. In addition, the conductive seal 400 according to the embodiment of the present application is located outside the threading space, that is, the first seal portion 410 and the second seal portion 420 are located outside the threading space, which can increase the distance between the electrical element located in the threading space and the conductive seal 400, thereby reducing the interference of the electromagnetic wave passing through the conductive seal 400 to the electrical element in the threading space.
Optionally, a concave portion is disposed on a surface of the electromagnetic shielding shell 300 facing the second sealing portion 420, the second sealing portion 420 has a wide portion 421 located in the concave portion and connected to an inner wall of the concave portion in a fitting manner, and the second sealing portion 420 is prevented from being separated from a gap between the electromagnetic shielding shell 300 and the connector 200 by a limit fit between the wide portion 421 and the inner wall of the concave portion. Further, the edge of the end surface of the electromagnetic shielding shell 300 facing the connector 200, which is close to the threading space, is provided with a chamfer, and the recess is the chamfer, so that the recess can be processed conveniently under the condition that the thickness of the electromagnetic shielding shell 300 is small.
In order to improve stability of the first sealing portion 410 and the second sealing portion 420 disposed in the two corresponding gaps, in an alternative embodiment, referring to fig. 1 to 3, the conductive sealing member 400 further includes a connection portion 430, the connection portion 430 is located outside the threading space, the connection portion 430 is connected with the first sealing portion 410 and the second sealing portion 420, respectively, and the connection portion 430 wraps the outer circumferential surface of the electromagnetic shielding case 300. Alternatively, the first sealing part 410, the second sealing part 420, and the connection part 430 may be integrally formed by injection molding. The connection part 430 is located outside the threading space, which increases the distance between the electrical components located in the threading space and the connection part 430, thereby reducing interference of electromagnetic waves passing through the connection part 430 on the electrical components in the threading space.
In the present embodiment, the connection portion 430 wraps the outer peripheral surface of the electromagnetic shielding shell 300, that is, the connection portion 430 completely covers the outer peripheral surface of the electromagnetic shielding shell 300, so that the contact area between the connection portion 430 and the electromagnetic shielding shell 300 is large, the connection strength between the connection portion 430 and the electromagnetic shielding shell 300 is also large, and the connection strength between the connection portion 430 and the first sealing portion 410 and the second sealing portion 420 respectively and the electromagnetic shielding shell 300 can be indirectly increased, so that the risk that the first sealing portion 410 and the second sealing portion 420 are separated from two corresponding gaps respectively can be reduced, so as to improve the stability of the arrangement of the first sealing portion 410 and the second sealing portion 420. In addition, the connection part 430 wraps the outer circumferential surface of the electromagnetic shielding shell 300 and provides buffer protection for the electromagnetic shielding shell 300, so that the electromagnetic shielding shell 300 is prevented from cracking or deforming under the impact of external acting force, and electromagnetic waves are prevented from entering the threading space through the cracks on the electromagnetic shielding shell 300 to interfere with the electrical elements; or the distance between the deformed electromagnetic shield case 300 and the electric components in the threading space is prevented from being too small, thereby preventing the electromagnetic waves passing through the electromagnetic shield case 300 from interfering with the electric components in the threading space. Further, the connection part 430 covers a portion of the outer circumferential surface of the connector 200, and/or the connection part 430 covers an end surface of the electromagnetic shield case 300 adjacent to the first opening, so that the first sealing part 410 and the second sealing part 420 can be further prevented from being separated from the two corresponding slits, respectively.
In an alternative embodiment, an end of the connection portion 430 adjacent to the first sealing portion 410 completely covers an end surface of the electromagnetic shielding case 300 adjacent to the first opening. In this embodiment, the connection portion 430 is connected to the end surface of the electromagnetic shielding shell 300, and the first sealing portion 410 is connected to the connection portion 430, so that the connection strength between the first sealing portion 410 and the electromagnetic shielding shell 300 can be increased by the connection portion 430, and the first sealing portion 410 can be prevented from falling out of the corresponding gap.
In an alternative embodiment, an end of the connecting portion 430 adjacent to the second sealing portion 420 is located on a side of the second sealing portion 420 facing away from the first sealing portion 410 and wraps around a portion of the outer circumferential surface of the connector 200. In the present embodiment, the connection part 430 is connected to a portion of the outer circumferential surface of the connector 200, and the second sealing part 420 is connected to the connection part 430, so that the second sealing part 420 can be connected to the connector 200 through the connection part 430, thereby preventing the second sealing part 420 from falling out of the corresponding slit.
In an alternative embodiment, the connector 200 has an annular flange 211, and the annular flange 211 may be located inside the electromagnetic shielding shell 300, in which case the connection portion 430 is located between the outer circumferential surface of the annular flange 211 and the inner circumferential surface of the electromagnetic shielding shell 300, that is, the connection portion 430 is located inside the electromagnetic shielding shell 300, which may make the distance between the connection portion 430 and the threading space short. In another embodiment, the second sealing portion 420 is located between the first end surface of the annular flange 211 and the first end surface of the electromagnetic shielding shell 300, and the end surface of the connecting portion 430 near the end of the second sealing portion 420 is coplanar with the second end surface of the annular flange 211 facing away from the electromagnetic shielding shell 300, that is, the annular flange 211 is located outside the electromagnetic shielding shell 300, and the first end surface of the annular flange 211 is disposed opposite to the end surface of the electromagnetic shielding shell 300 near the second opening, and the end surface of the connecting portion 430 near the second sealing portion 420 completely wraps the outer peripheral surface of the annular flange 211. Alternatively, an annular flange 211 may be provided on the outer peripheral surface of the connector body 210 described below.
In this embodiment, taking the orientation shown in fig. 1 as an example, the second sealing portion 420 is located between the right end face of the annular flange 211 and the left end face of the electromagnetic shielding shell 300, and fills the gap between the right end face and the left end face, and compared with the previous embodiment, the second sealing portion 420 of this embodiment is located outside the electromagnetic shielding shell 300, so that the connecting portion 430 is further away from the threading space, and further interference of electromagnetic waves passing through the second sealing portion 420 on electrical components in the threading space can be further reduced. In addition, the connection part 430 completely wraps the outer circumferential surface of the annular flange 211 to increase the connection strength therebetween, so as to further prevent the second sealing part 420 connected to the connection part 430 from falling off from the corresponding slit.
In another alternative embodiment, referring to fig. 4 to 6, the conductive seal 400 further includes a first reinforcing portion 440 and a second reinforcing portion 450 disposed at intervals, the first reinforcing portion 440 being connected to the first sealing portion 410, and the first reinforcing portion 440 being connected to an end surface of the electromagnetic shield 300 adjacent to the first opening, the second reinforcing portion 450 being connected to the second sealing portion 420, and the second reinforcing portion 450 being connected to a portion of an outer circumferential surface of the electromagnetic shield 300 and a portion of an outer circumferential surface of the connector 200, respectively. Alternatively, the first sealing part 410 and the first reinforcing part 440, and the second sealing part 420 and the second reinforcing part 450, which are integrally formed, may be formed by potting, respectively. In this embodiment, the first reinforcing portion 440 is connected to the end surface of the electromagnetic shielding shell 300, and the first sealing portion 410 is connected to the first reinforcing portion 440, so that the strength of the connection between the first sealing portion 410 and the electromagnetic shielding shell 300 can be increased by the first reinforcing portion 440, thereby preventing the first sealing portion 410 from falling out of the corresponding gap; the second reinforcement parts 450 are respectively connected to a portion of the outer circumferential surface of the electromagnetic shield case 300 and a portion of the outer circumferential surface of the connector 200, and the second sealing parts 420 are connected to the second reinforcement parts 450, so that the connection strength between the second sealing parts 420 and the electromagnetic shield case 300 and the connector 200, respectively, can be increased by the second reinforcement parts 450, thereby preventing the second sealing parts 420 from falling out of the corresponding slits. In addition, the first reinforcing portion 440 and the second reinforcing portion 450 do not cover the outer peripheral surface of the electromagnetic shielding shell 300 completely, so that the conductive seal 400 of the present embodiment uses less raw materials, and thus the manufacturing cost of the conductive seal 400 can be saved.
In an alternative embodiment, the cable 100 has an outer sheath 120, the shielding layer 110 includes a first shielding portion and a second shielding portion 111 connected to each other, the outer sheath 120 is sleeved on the outside of the first shielding portion, the second shielding portion 111 is bent with respect to the first shielding portion in a direction away from the connector 200, and the second shielding portion 111 covers a portion of an outer surface of the outer sheath 120, and the first sealing portion 410 is in electrical contact with the second shielding portion 111. In this embodiment, taking the azimuth shown in fig. 1 as an example, the outer sheath 120 is sleeved outside the first shielding part, the second shielding part 111 exceeds the left end of the outer sheath 120, the second shielding part 111 is bent rightward to enable the second shielding part 111 to cover a part of the outer surface of the outer sheath 120, and after the second shielding part 111 is folded out, the contact area between the shielding layer 110 and the electromagnetic shielding shell 300 can be increased, so that the stability of the electrical connection between the shielding layer 110 and the electromagnetic shielding shell 300 is increased; in addition, after the second shielding portion 111 is folded out, the second shielding portion 111 is located between the electromagnetic shielding shell 300 and the outer jacket 120 of the cable 100, and in the process of forming the first sealing portion 410, the outer jacket 120 can block the conductive raw material forming the first sealing portion 410 from entering the cable 100, so as to prevent the conductive raw material from covering the cable cores in the cable 100, so as to avoid short-circuiting between the cable cores. Furthermore, in the case that the electromagnetic shielding shell 300 has a crimp end disposed away from the connector 200, the second shielding portion 111 is located between the crimp end and the outer sheath 120, that is, a metal layer is provided between the crimp end and the outer sheath 120, so that the connection strength between the electromagnetic shielding shell 300 and the cable 100 after crimping can be improved, and the second shielding portion 111 located between the crimp end and the outer sheath 120 can also protect the cable core in the cable 100 from being crushed. In addition to the present embodiment, the outer sheath 120 of the left end of the cable 100 may be peeled off to expose the shielding layer 110 of the left end of the cable 100, that is, the outer sheath 120 between the shielding layer 110 and the crimp end of the electromagnetic shield 300 is removed so that the first sealing portion 410 is in electrical contact with the shielding layer 110.
Alternatively, the first sealing portion 410 may be in electrical contact with only the end surface of the second shielding portion 111, but the contact area between the first sealing portion 410 and the second shielding portion 111 is thus small, and the stability of the electrical connection therebetween is poor, so in an alternative embodiment, the first sealing portion 410 extends into the gap between the second shielding portion 111 and the electromagnetic shielding case 300, that is, the first sealing portion 410 is connected to the side of the second shielding portion 111 facing the electromagnetic shielding case 300, so that the contact area between the first sealing portion 410 and the second shielding portion 111 can be increased, thereby improving the stability of the electrical connection therebetween.
And/or, the first sealing portion 410 extends into the gap between the second shielding portion 111 and the outer sheath 120, that is, the first sealing portion 410 is connected to a surface of the second shielding portion 111 facing the outer sheath 120, so that a contact area between the first sealing portion 410 and the second shielding portion 111 can be increased, thereby improving stability of electrical connection therebetween.
The shielding layer 110 is generally a metal braid, and the metal braid has a plurality of pores, which reduce the contact area between the shielding layer 110 and the electromagnetic shielding shell 300, thereby reducing the stability of the electrical connection between the shielding layer 110 and the electromagnetic shielding shell 300, so that the first sealing portion 410 can fill at least one pore of the second shielding portion 111, and thus the contact area between the shielding layer 110 and the electromagnetic shielding shell 300 can be increased. In addition, the first sealing portion 410 may increase the structural strength of the second shielding portion 111 after filling the above-described voids, thereby reducing the risk of the second shielding portion 111 being damaged.
In an alternative embodiment, the cable assembly further includes an insulation inner mold 500, the insulation inner mold 500 is filled in the threading space, and an outer circumferential surface of the insulation inner mold 500 is attached to an inner wall surface of the threading space. In this embodiment, an insulating material may be injected into the threading space to form the insulating inner mold 500, and after the outer peripheral surface of the insulating inner mold 500 is attached to the inner wall surface of the threading space, the electromagnetic shielding shell 300 may be supported to prevent the electromagnetic shielding shell 300 from cracking or deforming under the external force. In addition, after the outer peripheral surface of the insulating inner mold 500 is attached to the inner wall surface of the threading space, the conductive raw material forming the conductive seal 400 can be prevented from entering the threading space in the process of forming the conductive seal 400, and if the conductive seal 400 enters the threading space, the distance between the electrical element in the threading space and the conductive seal can be reduced, and the short circuit of the electronic element in the threading space can be possibly caused.
In an alternative embodiment, the insulating inner mold 500 encapsulates the connection region of the connector 200 with the first end of the cable 100. The connection area between the connector 200 and the first end of the cable 100 refers to an area where the connection between the connector 200 and the first end is located, and specifically may be an area on the connector 200 or an area on the cable 100. In this embodiment, the insulating inner mold 500 covers the above-mentioned connection area, so that the electrical connection contact of the connector 200 electrically connected with the cable 100 can be prevented from being shorted, and at this time, the insulating inner mold 500 can support the electromagnetic shielding shell 300, prevent the conductive sealing member 400 from entering the threading space, and prevent the electrical connection contact of the connector 200 electrically connected with the cable 100 from being shorted, thereby achieving the effect of one object with multiple purposes.
In an alternative embodiment, the cable 100 is externally sleeved with the magnetic ring 600, and the magnetic ring 600 and the electromagnetic shielding shell 300 are arranged at intervals, so that the magnetic ring 600 can inhibit high-frequency electromagnetic waves and improve the electromagnetic interference resistance of the cable assembly.
Alternatively, the magnetic ring 600 may be directly sleeved on the outer peripheral surface of the cable 100, and the magnetic ring 600 is in transition fit with the cable 100 to prevent the magnetic ring 600 from moving on the cable 100, but since the specification types of the magnetic ring 600 are less and the specification types of the cable 100 are more, the magnetic ring 600 capable of being in transition fit with the cable 100 is not easy to find in the actual assembly process. Thus, in an alternative embodiment, the first sealing portion 410 is formed with a mounting portion 411 extending in a direction away from the first end of the cable 100, the mounting portion 411 wraps around a portion of the outer circumferential surface of the cable 100, and the magnetic ring 600 is sleeved outside the mounting portion 411 and is in transition fit with the mounting portion 411. In this embodiment, taking the orientation shown in fig. 1 as an example, the first sealing portion 410 extends rightward to form the mounting portion 411, and the magnetic ring 600 is sleeved on the outer peripheral surface of the mounting portion 411, and during the assembly process, the outer diameter of the mounting portion 411 can be controlled by controlling the thickness of the mounting portion 411, so that the mounting portion 411 can be adapted to magnetic rings 600 of various specifications, that is, when the cable 100 is not adapted to the magnetic rings 600, the cable 100 can be adapted to the magnetic rings 600 by forming the mounting portion 411 with a suitable thickness.
In an alternative embodiment, the first sealing portion 410 further has a limiting surface 412, and the magnetic ring 600 is in a limiting fit with the limiting surface 412 in a first direction, where the first direction is a direction extending from the magnetic ring 600 toward the electromagnetic shielding shell 300. In this embodiment, taking the orientation shown in fig. 1 as an example, after the magnetic ring 600 is sleeved outside the cable 100, the magnetic ring 600 can be moved leftwards, and when the magnetic ring 600 approaches the limiting surface 412 located on the left side of the magnetic ring 600, the magnetic ring 600 can be in limiting fit with the limiting surface 412, so that accurate positioning of the magnetic ring 600 can be realized. In addition, in the process of forming the housing 700 by injection molding, the limiting surface 412 can also prevent the magnetic ring 600 from moving in a direction approaching the electromagnetic shielding shell 300, so that the risk that the magnetic ring 600 is separated from a preset position after being positioned can be reduced.
The cable 100 includes a cable body and a cable core, the cable body surrounding the cable core, the cable core being electrically connected with the connector 200. When the cable 100 is bent, the cable core is displaced relative to the cable body, that is: in an alternative embodiment, the cable core is bonded to the end surface of the cable body facing the connector 200, and when the cable 100 is bent, the cable core is bonded to the end surface of the cable body, so that the cable core is prevented from being displaced relative to the cable body, and further the cable core is prevented from being separated from the connector 200. It should be noted that the cable body may include the shielding layer 110 and the outer jacket 120 described above.
In an alternative embodiment, the cable assembly further includes a housing 700, the housing 700 wrapping the outer circumferential surface of the electromagnetic shield 300, a portion of the outer circumferential surface of the connector 200, and a portion of the outer circumferential surface of the cable 100. The outer case 700 may protect the electromagnetic shield case 300 and the conductive seal 400, reducing the risk of damage to the electromagnetic shield case 300 and the conductive seal 400. Alternatively, the housing 700 may be a metal case or an insulating case.
And/or, the connector 200 includes a connector body 210 and a circuit board 220, the circuit board 220 is connected with the connector 200, and the cable 100 is electrically connected with the connector body 210 through the circuit board 220. In the embodiment, the circuit board 220 can be soldered with the pins of the connector body 210, and the cable 100 can be soldered with the circuit board 220, so that the convenience of wiring can be improved. Of course, the connector 200 may not include the circuit board 220, and the cable 100 is directly electrically connected to the connector body 210.
The foregoing embodiments of the present application mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in view of brevity of line text, no further description is provided herein. The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (12)
1. A cable assembly comprising a cable (100), a connector (200), an electromagnetic shield (300) and a conductive seal (400),
the electromagnetic shielding shell (300) is internally provided with a threading space, the threading space is provided with a first opening and a second opening, the first end of the cable (100) is connected with the electromagnetic shielding shell (300) and extends into the threading space through the first opening, the connector (200) is connected with the electromagnetic shielding shell (300) and covers the second opening, the first end of the cable (100) is electrically connected with the connector (200),
the conductive sealing member (400) is located outside the threading space, and the conductive sealing member (400) comprises a first sealing portion (410) and a second sealing portion (420), the first sealing portion (410) is filled in a gap between the electromagnetic shielding shell (300) and the cable (100) in a sealing manner, the first sealing portion (410) is in electrical contact with the shielding layer (110) of the cable (100), and the second sealing portion (420) is filled in a gap between the electromagnetic shielding shell (300) and the connector (200) in a sealing manner so as to fill at least a part of the gap between the electromagnetic shielding shell (300) and the connector (200) in the depth direction.
2. The cable assembly of claim 1, wherein the conductive seal (400) further comprises a connection portion (430), the connection portion (430) is located outside the threading space, the connection portion (430) is connected with the first seal portion (410) and the second seal portion (420), respectively, and the connection portion (430) wraps the outer circumferential surface of the electromagnetic shield (300).
3. The cable assembly of claim 2, wherein an end of the connecting portion (430) adjacent to the second sealing portion (420) is located on a side of the second sealing portion (420) facing away from the first sealing portion (410) and wraps around a portion of an outer circumferential surface of the connector (200).
4. A cable assembly according to claim 3, wherein the connector (200) has an annular flange (211), the second sealing portion (420) being located between a first end face of the annular flange (211) and a first end face of the electromagnetic shield (300), an end face of the connecting portion (430) near an end of the second sealing portion (420) being coplanar with a second end face of the annular flange (211) facing away from the electromagnetic shield (300).
5. The cable assembly of claim 1, wherein the conductive seal (400) further comprises a first reinforcing portion (440) and a second reinforcing portion (450) disposed at intervals, the first reinforcing portion (440) being connected to the first sealing portion (410), and the first reinforcing portion (440) being connected to an end face of the electromagnetic shield (300) adjacent to the first opening, the second reinforcing portion (450) being connected to the second sealing portion (420), and the second reinforcing portion (450) being connected to a portion of an outer peripheral surface of the electromagnetic shield (300) and a portion of an outer peripheral surface of the connector (200), respectively.
6. The cable assembly of claim 1, wherein the cable (100) has an outer jacket (120), the shielding layer (110) includes a first shielding portion and a second shielding portion (111) connected, the outer jacket (120) is sleeved outside the first shielding portion, the second shielding portion (111) is bent with respect to the first shielding portion in a direction away from the connector (200), and the second shielding portion (111) covers a portion of an outer surface of the outer jacket (120), and the first sealing portion (410) is in electrical contact with the second shielding portion (111).
7. The cable assembly of claim 6, wherein the first seal (410) extends into a gap between the second shield (111) and the electromagnetic shield (300); and/or the first sealing portion (410) extends into a gap between the second shielding portion (111) and the outer sheath (120).
8. The cable assembly according to claim 1, further comprising an insulating inner mold (500), wherein the insulating inner mold (500) is filled in the threading space, and an outer circumferential surface of the insulating inner mold (500) is fitted to an inner wall surface of the threading space.
9. The cable assembly of claim 8, wherein the insulating inner mold (500) encapsulates a connection region of the connector (200) and the first end of the cable (100).
10. The cable assembly according to claim 1, wherein a magnetic ring (600) is sleeved outside the cable (100), the magnetic ring (600) being arranged at a distance from the electromagnetic shielding shell (300);
the first sealing part (410) is provided with a mounting part (411) extending along a direction away from the first end of the cable (100), the mounting part (411) wraps a part of the outer peripheral surface of the cable (100), and the magnetic ring (600) is sleeved outside the mounting part (411) and is in transition fit with the mounting part (411).
11. The cable assembly of claim 10, wherein the first sealing portion (410) further has a limiting surface (412), the magnetic ring (600) being in limiting engagement with the limiting surface (412) in a first direction,
wherein the first direction is a direction extending from the magnetic ring (600) to the electromagnetic shield case (300).
12. The cable assembly of claim 1, wherein the cable (100) comprises a cable body and a cable core, the cable body surrounding the cable core, the cable core being electrically connected with the connector (200), the cable core being bonded with an end face of the cable body facing the connector (200); and/or the number of the groups of groups,
the cable assembly further includes a housing (700), the housing (700) wrapping an outer circumferential surface of the electromagnetic shield case (300), a portion of the outer circumferential surface of the connector (200), and a portion of the outer circumferential surface of the cable (100); and/or the number of the groups of groups,
the connector (200) comprises a connector body (210) and a circuit board (220), the circuit board (220) is connected with the connector (200), and the cable (100) is electrically connected with the connector body (210) through the circuit board (220).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310793152.0A CN116526222B (en) | 2023-06-29 | 2023-06-29 | Cable assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310793152.0A CN116526222B (en) | 2023-06-29 | 2023-06-29 | Cable assembly |
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| Publication Number | Publication Date |
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| CN116526222A CN116526222A (en) | 2023-08-01 |
| CN116526222B true CN116526222B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310793152.0A Active CN116526222B (en) | 2023-06-29 | 2023-06-29 | Cable assembly |
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| JP2021018979A (en) * | 2019-07-23 | 2021-02-15 | 矢崎総業株式会社 | Waterproof shield connector |
| CN112956088A (en) * | 2019-02-25 | 2021-06-11 | J.S.T.公司 | Method of shielding and grounding a connector |
| CN215299741U (en) * | 2021-04-08 | 2021-12-24 | 杭州海康威视数字技术股份有限公司 | Shielded cable assembly |
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| US5746625A (en) * | 1995-04-21 | 1998-05-05 | Thomson-Csf | Device to join up cable sheathings |
| CN107732579A (en) * | 2016-08-12 | 2018-02-23 | 东莞莫仕连接器有限公司 | Wire and cable connector |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN116526222A (en) | 2023-08-01 |
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