CN215989497U - Multi-core shielding connector plug - Google Patents

Abstract

The utility model discloses a multi-core shielded connector plug which comprises an inner shell, a shielding piece and a connecting piece for realizing transmission of electric signals, wherein one end of the shielding piece is inserted into the inner shell, the other end of the shielding piece is used for crimping a cable shielding layer, the shielding piece is used for realizing shielding conduction of the cable shielding layer and the inner shell, the connecting piece is positioned in the inner shell, the connecting piece comprises a plurality of first contact pieces, one ends of the first contact pieces are used for being welded with cable cores of cables, and the first contact pieces are positioned in the shielding piece. According to the utility model, the shielding part is used for realizing the shielding conduction between the cable shielding layer and the inner shell, so that the stability and the anti-interference capability of signal transmission are improved; and radiation interference generated in the signal transmission process due to the problems of insufficient solder, size difference of solder joints, sharp corners of solder joints and the like at the welding position of the first contact element and the cable wire core can be shielded.

Description

Multi-core shielding connector plug

Technical Field

The utility model relates to the technical field of connectors, in particular to a multi-core shielding connector.

Background

At present, in the design of a communication equipment cabinet, a common signal connector realizes signal transmission and control between the communication equipment cabinet and an external monitoring control unit module through a contact element. The signal connector comprises a plug and a socket, the plug is used for being connected with the cable, the socket is arranged in the communication equipment cabinet, and the socket is matched with the plug to realize the transmission of electric signals from the cable to the cabinet.

The plug of the existing signal connector generally comprises a shell, a contact element and a waterproof accessory, and the plug does not have a shielding function; and the signal anti-interference capability, stability, electromagnetic compatibility and the like are required to be improved when the device works in severe weather.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides the multi-core shielding connector plug which is stable in signal transmission, strong in anti-interference capability and has the shielding and lightning stroke resisting functions.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a multi-core shielded connector plug comprises

An inner housing;

the connecting piece is arranged inside the inner shell and used for realizing the transmission of electric signals;

one end of the shielding piece is inserted in the inner shell, the other end of the shielding piece is used for contacting the cable shielding layer, and the shielding piece is used for realizing the conduction of the cable shielding layer and the shielding of the inner shell.

Has the advantages that: the shielding part is used for realizing the conduction between the shielding layer of the cable and the shielding of the inner shell, and the stability and the anti-interference capability of signal transmission are improved; the transmission of the electrical signals of the multi-core cable is realized through the connecting piece.

Furthermore, the connecting piece comprises a plurality of first contact pieces, one ends of the first contact pieces are used for being welded with the cable cores, and the first contact pieces are located inside the shielding piece.

Has the advantages that: the radiation interference generated in the signal transmission process due to the problems of insufficient soldering, welding spot size difference, sharp corners of welding spots and the like at the welding position of the first contact element and the cable wire core can be shielded.

Further, the shielding piece comprises a shielding ring, the shielding ring comprises an annular body, and one end, welded with the cable core, of the first contact piece is located inside the annular body.

Furthermore, a second convex ring is arranged on the periphery of the annular body, and one end face of the second convex ring is in contact with the end face of the inner shell.

Has the advantages that: the surface-to-surface contact is formed between the inner shell and the second convex ring, the surface-to-surface contact can form a stop, the installation is prompted to be in place, and the contact area is increased to enable the contact to be more stable.

Further, the one end that is close to the shield ring on the interior casing still is connected with waterproof cover, the shielding part is located waterproof cover, is equipped with the dog in the waterproof cover, annular body one end is equipped with the hemizonid, the dog is used for supporting a terminal surface of keeping away from annular body on the hemizonid tightly.

Has the advantages that: the half-ring body is abutted through the stop block, so that the end face of the second convex ring is tightly attached to the end face of the inner shell, and the stability of shielding conduction is ensured.

Further, the position department of keeping away from the shield ring in the periphery of interior casing has opened first annular, the cover is equipped with electrically conductive piece on the first annular, electrically conductive piece be used for the contact with multicore shielded connector plug matched with adapter to the shielding of realization interior casing and adapter switches on.

Furthermore, the connecting piece comprises an insulator, a plurality of first contact pieces penetrate through the insulator, one end of each first contact piece is provided with a welding cup, and the other end of each first contact piece is used for realizing the electric signal transmission between the first contact piece and the adapter.

Furthermore, a pressing plate is arranged on the semi-ring body, an arc-shaped arch is arranged in the middle of the pressing plate, two ends of the pressing plate are installed on the semi-ring body through screwing pieces, and a containing cavity used for penetrating through a shielding layer of a cable is formed between the arch and the semi-ring body.

Has the advantages that: the clamp plate is used for fixing the cable conductor shielding layer, and interference caused by shaking of an external cable conductor in the using process is prevented.

Further, the conductive piece is a corrugated spring capable of generating axial elastic compression deformation, the corrugated spring is located in the outer shell, and the corrugated spring is used for achieving close contact between the inner shell and the conductive shell of the adapter.

Further, the conductive member is a grounding spring capable of generating radial elastic compression deformation, the grounding spring is located in the outer shell, and the grounding spring is used for achieving close contact between the inner shell and the conductive shell of the adapter.

Has the advantages that: the close contact between the inner shell and the adapter is realized through the conductive piece, so that the stable conduction of a shielding signal is realized.

Drawings

Fig. 1 is a schematic perspective view of embodiment 1 of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a left side schematic view of FIG. 1;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view of the inner housing and shield installation of embodiment 1 of the present invention;

fig. 6 is a schematic view of a connector according to embodiment 1 of the present invention;

fig. 7 is a schematic view of a shield according to embodiment 1 of the present invention;

fig. 8 is a broken-away schematic view of the outer case, the inner case, and the connecting member of embodiment 1 of the present invention;

fig. 9 is an assembly diagram of embodiment 1 of the present invention.

Fig. 10 is a schematic cross-sectional view of fig. 9.

The labels in the figure are: 1. the waterproof structure comprises a waterproof sleeve, 2, an outer shell, 21, a first spring, 22, a first convex ring, 23, a first positioning bulge, 3, an inner shell, 31, a conductive piece, 32, a first limiting ring, 33, a second limiting ring, 34, a second positioning bulge, 35, a first positioning groove, 36, a first limiting groove, 37, a front shell, 38, a rear shell, 4, a stop block, 5, a shielding piece, 51, a pressing plate, 52, a shielding ring, 53, a second convex ring, 6, a connecting piece, 61, a first contact piece, 62, a limiting section, 63, an insulator, 64, a sealing rubber gasket, 65, a welding cup, 66, a key groove, 7, a waterproof ring, 8, an adapter, 81, a conductive shell, 82, a second contact piece, 83, an insulating base, 9, a socket, 91, a third contact piece, 10, a printed board, 11 and a cabinet panel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The utility model is described in further detail below with reference to the figures and the embodiments.

Example 1 of the utility model:

as shown in fig. 1-8, a shielded multiconductor connector plug includes: waterproof cover 1, interior casing 3, locate outer shell 2 outside interior casing 3, shield 5, be used for realizing the connecting piece 6 of the transmission of electric signal.

The inner housing 3 is a hollow cylindrical structure, which is made of metal. The inner housing 3 is composed of a front housing 37 and a rear housing 38, and the outer diameter of the front housing 37 is larger than that of the rear housing 38. It has first annular to open near anterior segment casing 37 position department in the periphery of back end casing 38, the cover is equipped with electrically conductive 31 on the first annular, electrically conductive 31 be used for the contact with multicore shielded connector plug matched with adapter 8 to the shielding of casing 3 and adapter 8 switches on in the realization. The conductive piece 31 is a corrugated spring, and when the inner shell 3 is not inserted into the adapter 8, the corrugated spring is in clearance fit with the inner shell 3 and is located in the outer shell 2, and the corrugated spring is used for being extruded in the process of inserting the outer periphery of the inner shell into the conductive shell 81 of the adapter 8 to generate axial elastic compression deformation so as to realize close contact with the inner shell 3 and the conductive shell 81 and realize stable conduction of a shielding signal.

The outer shell 2 is a hollow cylindrical structure and is made of metal. The outer housing 2 is located outside the inner housing 3. The inner periphery of the outer shell 2 is provided with a first convex ring 22, the first convex ring 22 is provided with a first positioning bulge 23, and the outer periphery of the inner shell 3 is provided with a first positioning groove 35 matched with the first positioning bulge 23. The inner housing 3 is inserted into the outer housing 2 along the inner circumference of the first protruding ring 22, and the first positioning protrusion 23 and the first positioning groove 35 are used for limiting the radial position of the inner housing 3 in the process, so as to achieve guiding and rotation prevention.

A first limiting groove 36 is formed in the front section shell 37 at a position close to the rear section shell 38, a first limiting ring 32 is sleeved on the first limiting groove 36, and the first limiting ring 32 is of a clamp spring type structure. A third convex ring is arranged on the front section shell 37, a first spring 21 is arranged between the third convex ring and the first convex ring 22, and the axial position of the inner shell 3 relative to the outer shell 2 is limited by the first spring 21 and the first limiting ring 32.

The cable in this embodiment is a multi-core cable. The shielding piece 5 is used for realizing the shielding conduction between the cable shielding layer and the inner shell 3, and comprises a shielding ring 52 and a pressing plate 51 for pressing and fixing the cable shielding layer, wherein the shielding ring 52 is made of zinc ingot alloy, and the pressing plate 51 is made of stainless steel. The shielding ring 52 includes an annular body and a semi-ring body, the annular body is a hollow cylindrical structure, two connecting sheets are arranged at one end of the annular body, and one end of each connecting sheet far away from the annular body is connected with the semi-ring body.

The middle of the pressing plate 51 is provided with an arc-shaped arch, two ends of the pressing plate 51 are installed on the semi-ring body through tightening pieces, the tightening pieces are screws, and a containing cavity used for penetrating through a shielding layer of a cable is formed between the arch and the semi-ring body. When the shielding layer of the cable passes through the accommodating cavity, the screw is loosened, then the screw is tightened, and the pressing plate 51 moves downwards to tightly press and fix the shielding layer of the cable.

A second convex ring 53 is arranged on the periphery of the annular body, and one end face, far away from the pressure plate 51, of the second convex ring 53 is in contact with the end face of the inner shell 3. The second protruding ring 53 is provided with a second positioning groove, and the end surface of the inner housing 3 is provided with a second positioning protrusion 34 matched with the second positioning groove. The second positioning groove and the second positioning protrusion 34 are used for guiding and preventing rotation when the shielding ring 52 is inserted into the inner housing 3.

The connector 6 is disposed inside the inner housing 3, the connector 6 includes an insulator 63, and a plurality of first contacts 61 disposed inside the insulator 63, the insulator 63 is a cylindrical structure, and the plurality of first contacts 61 penetrate through the insulator 63. One end of the first contact member 61 is provided with a welding cup 65, and the other end of the first contact member 61 is used for realizing the electrical signal transmission with the adaptor 8. The welding cups 65 are used for welding with cable cores, the welding cups 65 are located inside the annular body, namely the distance between one end face, close to the pressing plate 51, of the annular body and the end face of the welding cups 65 is larger than zero, and the inner diameter of the annular body is larger than the height between the lowest point and the highest point of the plurality of welding cups 65. When the welding point of the cable and the first contact element 61 has the phenomena of insufficient welding, welding point size difference, sharp angle of the welding point and the like, the welding point is easy to generate radiation interference in the signal transmission process, and the shielding ring 52 can shield the radiation interference generated at the welding point.

A limiting section 62 is arranged on one side of the insulator 63 far away from the shielding ring 52, the outer diameter of the limiting section 62 is smaller than that of the insulator 63 adjacent to the limiting section 62, a first step surface is arranged at the joint of the insulator 63 and the limiting section 62, and an inner step surface matched with the first step surface is arranged in the front section shell 37 of the inner shell 3. The position of the left side of the step surface in the front shell 37 is sleeved with a second limiting ring 33, and the second limiting ring 33 is of a clamp spring type structure. The axial position limitation of the connecting piece 6 is performed by the second position limiting ring 33 and the inner step surface. The insulator 63 is provided with a key groove 66, and a flat key matched with the key groove is arranged in the front section shell 37 and used for radial limiting, so that the accuracy of the installation position of the connecting piece 6 is ensured, and the end, far away from the welding cup 65, of the first contact piece 61 can be accurately inserted into the second contact piece 82 in the adapter 8. The insulator 63 is also sleeved with a sealing rubber gasket 64.

One end of the waterproof sleeve 1 is in threaded connection with the periphery of the inner shell 3 and is close to the position of the shielding ring 52, a gasket, a waterproof ring 7 and a stop block 4 are sequentially arranged in the other end of the waterproof sleeve 1, and the shielding piece 5 is integrally positioned in the waterproof sleeve 1. Dog 4 adopts the nylon plastics material, has certain elasticity, and a terminal surface of keeping away from waterproof ring 7 on dog 4 is used for supporting the terminal surface of keeping away from the annular body on the tight hemizonid to make the terminal surface of second bulge loop 53 closely laminate with interior casing 3's terminal surface, guarantee the stability that the shielding switched on.

One end of the waterproof sleeve 1, which is far away from the inner shell 3, is provided with a first through hole through which a cable can pass. Waterproof ring 7 is the ring form structure, and waterproof ring 7 adopts the rubber material, and its periphery is used for closely cooperating in order to realize waterproof effect with the oversheath of cable conductor.

When the cable is connected in the embodiment, the cable sequentially passes through the waterproof sleeve 1, the gasket, the waterproof ring 7 and the stop block 4, then the outer sheath of the cable is stripped, the shielding layer of the cable passes through the accommodating cavity between the pressing plate 51 and the semi-ring body, and the pressing plate 51 tightly presses and fixes the shielding layer of the cable; and then welding the wire core in the cable with the welding cup 65. When the plug is used, the plug is plugged into the adaptor 8, so that the plug and the socket 9 in the embodiment can be electrically connected through the adaptor 8.

As shown in fig. 9-10, the multi-conductor shielded connector plug, the adaptor 8 and the socket 9 of the present embodiment together constitute a multi-conductor shielded connector. The adaptor 8 includes a conductive housing 81, an insulating base 83 provided in the conductive housing 81, and a plurality of second contacts 82 provided in the insulating base 83, the conductive housing 81 is mounted on the cabinet panel 11, and the cabinet panel 11 is provided on the communication equipment cabinet. In the process that the rear-section shell 38 on the inner shell 3 is inserted into the adapter 8, the corrugated spring is extruded by the end face of the conductive shell 81 to generate axial elastic compression deformation so as to realize close contact with the inner shell 3 and the conductive shell 81, and further realize stable conduction of a shielding signal from the inner shell 3 to the conductive shell 81. After the inner housing 3 and the adaptor 8 are inserted, the end of the rear housing 38 away from the shielding ring 52 is clamped in the conductive housing 81, and one end of the conductive housing 81 is tightly contacted with the inner housing 3 through the corrugated spring.

The socket 9 includes an insulating housing and a plurality of third contacts 91 provided in the insulating housing. The pins of the third contact 91 are mounted in corresponding holes in the printed board 10 and soldered together by a reflow soldering method. Slots are formed in two ends of the second contact element 82, one end of the second contact element 82 is connected with the first contact element 61 in an inserting mode, and the other end of the second contact element 82 is connected with the third contact element 91 in an inserting mode. The transmission of electrical signals from the electrical cables to the receptacle 9 is achieved by the first contact 61, the second contact 82 and the third contact 91.

Example 2 of the utility model:

the present embodiment is different from embodiment 1 in that, in embodiment 1, the conductive member is a wave spring, and is pressed during the process of inserting the inner housing and the adaptor, so as to generate axial elastic compression deformation. The conductive piece is in the form of a grounding spring, is in clearance fit with the inner shell in the non-insertion state, and is extruded to generate radial elastic compression deformation in the insertion process of the inner shell and the adapter, so that the inner shell and the conductive shell are in close contact, and the shielding signal is stably conducted.

Example 3 of the utility model:

the difference between this embodiment and embodiment 1 is that in embodiment 1, the insulator is provided with a key groove, and a flat key matched with the key groove is arranged in the front section shell for radial limiting. In this embodiment, the insulator is provided with a flat key, and the front shell is provided with a key slot matching with the flat key.

Claims (10)

1. A shielded multi-conductor connector plug, comprising: the method comprises the following steps:

an inner housing (3);

the connecting piece (6) is arranged inside the inner shell (3) and is used for realizing the transmission of electric signals;

and one end of the shielding piece (5) is inserted into the inner shell (3), the other end of the shielding piece is used for contacting the cable shielding layer, and the shielding piece (5) is used for realizing the shielding conduction between the cable shielding layer and the inner shell (3).

2. The shielded connector plug of claim 1, wherein: the connecting piece (6) comprises a plurality of first contact pieces (61), one end of each first contact piece (61) is used for being welded with the wire core of the cable, and the first contact pieces are located inside the shielding piece (5).

3. The shielded connector plug of claim 2, wherein: the shielding piece (5) comprises a shielding ring (52), the shielding ring (52) comprises an annular body, and one end, welded with a cable wire core, of the first contact piece (61) is located inside the annular body.

4. A shielded multiconnector plug according to claim 3, wherein: and a second convex ring (53) is arranged on the periphery of the annular body, and one end face of the second convex ring (53) is in contact with the end face of the inner shell (3).

5. The shielded connector plug of claim 4, wherein: one end of the inner shell (3) close to the shielding ring (52) is further connected with a waterproof sleeve (1), the shielding piece (5) is located in the waterproof sleeve (1), a stop block (4) is arranged in the waterproof sleeve (1), one end of the annular body is provided with a semicircular body, and the stop block (4) is used for abutting against one end face of the semicircular body, which is far away from the annular body.

6. A shielded multi-core connector plug as claimed in any one of claims 3 to 5, wherein: position department of keeping away from shielding ring (52) on the periphery of interior casing (3) opens there is first annular, the cover is equipped with electrically conductive piece (31) on the first annular, electrically conductive piece (31) be used for the contact with multicore shielded connector plug matched with adapter (8) to the shielding of casing (3) and adapter (8) switches on in the realization.

7. The shielded connector plug of claim 6, wherein: the connecting piece (6) comprises an insulator (63), a plurality of first contact pieces (61) penetrate through the insulator (63), one ends of the first contact pieces (61) are provided with welding cups (65), and the other ends of the first contact pieces are used for achieving electric signal transmission between the first contact pieces and the adapter (8).

8. The shielded connector plug of claim 5, wherein: be equipped with clamp plate (51) on the hemicycle body, clamp plate (51) middle part is equipped with curved hunch-up, and the both ends of clamp plate (51) are installed on the hemicycle body through screwing up the piece, form the holding chamber that is used for passing the shielding layer of cable conductor between hunch-up and the hemicycle body.

9. The shielded connector plug of claim 6, wherein: the conductive piece (31) is a corrugated spring capable of generating axial elastic compression deformation, the corrugated spring is positioned in the outer shell (2), and the corrugated spring is used for realizing the close contact of the inner shell (3) and the conductive shell (81) of the adapter (8).

10. The shielded connector plug of claim 6, wherein: the conductive piece (31) is a grounding spring capable of generating radial elastic compression deformation, the grounding spring is positioned in the outer shell (2), and the grounding spring is used for realizing the close contact of the inner shell (3) and the conductive shell (81) of the adapter (8).

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