CN219554083U - Shielding piece and shielding assembly - Google Patents

Abstract

The utility model discloses a shielding component, wherein a shielding piece B is the shielding piece, an inner conductor is arranged in an insulator, the insulator is arranged in the shielding piece B, the front end of the insulator is in butt joint with a necking section of the shielding piece B, the rear end of the insulator is positioned in a compacting section of the shielding piece B, the front end of the shielding piece A is inserted into the compacting section of the shielding piece B, the rear end of the insulator is inserted into a shielding piece A, a twisted pair wire is arranged in the shielding piece A, a core wire of the twisted pair wire is connected with a corresponding inner conductor, the shielding component B is provided with a wiring seam, the wiring seam penetrates through the whole shielding piece from front to back, two side seams of the wiring seam are formed by straight line sections and oblique line sections, the oblique line sections of the two side seams are in seamless lap joint, and the straight line sections of the two side seams are staggered up and down. The beneficial effects of the utility model are as follows: the cross section shape of the wiring seam on the shielding piece B is designed into an up-down staggered lap joint structure, so that the seamless lap joint of the wiring seam is realized, and the shielding performance of the shielding component is improved.

Description

Shielding piece and shielding assembly

Technical Field

The present utility model relates to differential electrical connectors, and more particularly to a shield and a shield assembly.

Background

Differential signals are typically represented by a pair of conductors identified as V+ and V-, where V+ is greater than V-, the signal is defined as the positive signal and V+ is less than V-, the signal is defined as the negative signal. When a differential signal scheme is adopted instead of a single-ended signal, a pair of wires is used to replace a single wire, and although the complexity of the related interface circuit is increased, the differential signal has a plurality of advantages of strong interference resistance, effective EMI suppression and the like, so that the differential signal is increasingly applied.

Currently, a relatively widely used differential signal is a low voltage differential signal LVDS, and the transmission rate supported by such a signal is generally above 155Mbps (about 77 MHz). LVDS is a low swing differential signaling technology that enables signals to be transmitted at rates of several hundred Mbps over differential PCB wire pairs or balanced cables with low voltage amplitude and low current drive output achieving low noise and low power consumption.

The seam parts of the shielding pieces (punched pieces) of the similar electric connector products at present adopt straight seam structures, and the seam structures cannot play a good role in shielding.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a shielding piece and a shielding assembly.

The aim of the utility model is achieved by the following technical scheme: a shielding piece is provided with a wiring seam, the wiring seam penetrates through the whole shielding piece from front to back, two side seams of the wiring seam are composed of straight line sections and oblique line sections, the oblique line sections of the two side seams are in seamless lap joint, and the straight line sections of the two side seams are staggered up and down.

Optionally, the shielding piece includes the throat section, elasticity contact section and the section that compresses tightly that connect gradually, has seted up the slotted hole on the lateral wall of elasticity contact section, and the slotted hole extends to the junction of elasticity contact section and throat section, has seted up a plurality of elasticity contact arms on the rear end wall of slotted hole, and elasticity contact arm axial extension, and elasticity contact arm's front end is provided with the contact head of evagination.

Optionally, a plurality of outward tilting elastic pieces are arranged on the rear end face of the necking section, and the elastic pieces are positioned in the slotted holes on the lower projection surface.

The utility model provides a shielding subassembly, including shield A, shield B, the insulator, inner conductor and paired line, shield B is above-mentioned shield, the inner conductor is installed in the insulator, the insulator is installed in shield B, and the front end of insulator and shield B's throat section butt, the rear end of insulator is located shield B's section that compresses tightly, shield A's front end inserts shield B's section that compresses tightly, and shield A's rear end inserts in the shield A, install the paired line in the shield A, the heart yearn of paired line is connected with corresponding inner conductor.

Optionally, the shielding member A has a parting line section, a crimping section and a plug section, the rear end of the parting line section is connected with the crimping section, the front end of the parting line section is connected with the plug section, the parting line section is composed of two cover plates which are oppositely arranged, a threading cavity is formed between the two cover plates, a middle separation retaining wall is arranged on the opposite surface of the cover plates, the middle separation retaining wall divides the threading cavity into two threading holes for threading, and the two middle separation retaining walls are in contact or staggered crossing or opposite and are provided with gaps.

Optionally, the outer side wall of the cover plate is provided with an axially extending groove, the rear end of the groove is provided with a stiffening platform, the branch line sections are smaller than the crimping section and the inserting section, and the angle between the step surface formed between the inserting section and the branch line section and the stiffening platform is 90+/-5 degrees.

Optionally, a shielding member C is sleeved on the twisted pair wire in the crimping section of the shielding member a, the shielding member C is located in the crimping section, and the shielding layer of the twisted pair wire penetrates out from the inner side wall of the shielding member C and is crimped between the crimping section and the shielding member C.

Optionally, a limiting gap is formed at the front end of the plugging section, a limiting block B is arranged on an insulator positioned in the compression section, and the limiting block B is clamped into the limiting gap and is abutted with the limiting gap.

Optionally, a positioning gap is formed between two adjacent elastic sheets, and a limiting block A clamped in the positioning gap is arranged at the front end of the insulator.

Optionally, two slots a and two slots B are formed on the insulator in the elastic contact section, the two slots a and the two slots B are symmetrical with each other with respect to the stopper a, and the slots a are located in front of the slots B.

The utility model has the following advantages: the shielding component of the utility model designs the section shape of the junction seam on the shielding piece B into an up-down staggered lap joint structure, thereby realizing the seamless lap joint of the junction seam and improving the shielding performance of the shielding component.

Drawings

FIG. 1 is a schematic view of a shielding assembly;

FIG. 2 is a schematic cross-sectional view of a shielding assembly;

fig. 3 is a schematic structural view of a shield a;

fig. 4 is a schematic diagram of a second structure of the shielding member a;

FIG. 5 is a schematic cross-sectional view of B-B of FIG. 4;

fig. 6 is a schematic view of a structure in which twisted pairs are mounted in a shield a;

fig. 7 is a schematic structural view of an insulator;

fig. 8 is a schematic diagram of a structure of a shield B;

FIG. 9 is an exploded view of the shield assembly after crimping;

FIG. 10 is an exploded view of the shield assembly prior to crimping;

fig. 11 is a schematic diagram ii of the structure of the shield B;

FIG. 12 is an enlarged schematic view of the circle in FIG. 11;

in the figure, 00-shield B, 201-necking segment, 202-elastic contact segment, 203-pressing segment, 204-elastic contact arm, 205-elastic piece, 206-positioning notch, 207-seam a, 208-seam B, 209-seam C, 2071-straight segment, 2072-diagonal segment, 300-insulator, 301-stopper a, 302-stopper B, 303-slot a, 304-slot B, 400-shield a, 500-inner conductor, 600-shield C, 700-twisted pair, 701-shield layer, 702-core, 401-plug segment, 402-parting segment, 403-crimp segment, 404-parting notch, 405-stiffening platform, 4021-threading hole, 4022-cover plate, 4023-intermediate parting retaining wall.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model 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 utility model, as 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, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, a shielding assembly comprises a shielding member a400, a shielding member B200, an insulator 300, an inner conductor 500 and a twisted pair 700, in this embodiment, as shown in fig. 3 and 4, the shielding member a400 is provided with a parting line section 402, a crimping section 403 and a plugging section 401, the rear end of the parting line section 402 is connected with the crimping section 403, the front end of the parting line section 402 is connected with the plugging section 401, as shown in fig. 5, the parting line section 402 is composed of two cover plates 4022 which are oppositely arranged, a threading cavity is formed between the two cover plates 4022, an intermediate partition retaining wall 4023 is arranged on the opposite surfaces of the cover plates 4022, the threading cavity is divided into two threading holes 4021 for threading by the intermediate partition retaining wall 4023, the two intermediate partition retaining walls 4023 are in contact or staggered intersection or are opposite and provided with gaps, thereby the shielding performance of the shielding member a400 is improved, in this embodiment, as shown in fig. 3, grooves extending axially are formed on the outer side walls of the cover plates 4022, the rear end of the groove is provided with a stiffening platform 405, the parting line segments 402 are smaller than the compression joint segments 403 and the inserting segment 401, the angle between the step surface formed between the inserting segment 401 and the parting line segments 402 and the stiffening platform 405 is 90 degrees plus or minus 5 degrees, as shown in fig. 6, when the core wires 702 of the twisted pair 700 are arranged in the threading holes 4021 in a penetrating way, the space between the shielding piece A400 and the two core wires 702 is reduced, the impedance is improved, the electrical performance of the connector is improved, in the embodiment, as shown in fig. 3, the shielding piece A400 is in an integrated structure, after the shielding piece A400 is manufactured, the cross section of the inserting segment 401 is in a runway shape, and the splicing seams are arranged between the two cover plates 4022 and are positioned at the left side and the right side of the parting line segments 402, wherein the two splicing seams extend towards the inserting segment 401, so that the inserting segment 401 is divided into two parts which are symmetrical up and down by the splicing seams, and one of the splice joints extends to the rear end of the crimp segment 403, preferably, as shown in fig. 3 and 10, the splice joint on the crimp segment 403 has a concave-convex structure, and the concave-convex structure can play a role in positioning when the crimp segment 403 is deformed by crimping, so as to avoid axial dislocation of the shielding piece.

In this embodiment, as shown in fig. 2, the inner conductor 500 is installed in the insulator 300, the insulator 300 is installed in the shield B200, the plug section 401 of the shield a400 is inserted into the shield B200, and the rear end of the insulator 300 is inserted into the plug section 401, the core wire 702 of the twisted pair 700 is penetrated into the wire dividing section 402, and the core wire 702 of the twisted pair 700 is connected with the corresponding inner conductor 500, when the inner conductor 500 is installed, the insulator 300 is installed in the shield B200, and finally the plug section 401 of the shield a400 is inserted into the shield B200, and when the plug section 401 is inserted into the shield B200, the plug section 401 has a slight inward deformation, so that the plug section 401 has a certain elastic restoring force, and when the plug end is inserted into the shield B200, the plug end can make reliable contact with the shield B200 under the elastic restoring force, so that the shield a400 and the shield B200 have reliable contact performance.

In this embodiment, as shown in fig. 2, the twisted pair 700 located in the crimp section 403 of the shield a400 is sleeved with the shield C600, the shield C600 is located in the crimp section 403, and the shielding layer 701 of the twisted pair 700 penetrates out from the inner side wall of the shield C600 and is crimped between the crimp section 403 and the shield C600, so that the shield a400, the shielding layer 701 and the shield C600 are connected to each other, and the shielding performance of the shielding assembly is ensured.

In this embodiment, as shown in fig. 8, the shielding member B200 has a necking section 201, an elastic contact section 202 and a pressing section 203, the front end of the insulator 300 sequentially passes through the pressing section 203, the elastic contact section 202 and abuts against the step surface of the necking section 201 and the elastic contact section 202, a limiting block B302 is disposed on the insulator 300 located in the pressing section 203, the front end surface of the plug section 401 abuts against the limiting block B302, so that the limiting block B302 has a stop function, when the plug section 401 is inserted, the limiting block B302 abuts against the plug section 401, then the plug section 401 is indicated to be inserted in place, further, a limit notch 404 is formed at the front end of the plug section 401, and the limiting block B302 is clamped into the limit notch 404 and abuts against the limit notch 404, so that the limiting block B302 also has positioning and rotation stopping functions, and when the plug section 401 is mounted, the plug section 401 cannot rotate circumferentially relative to the pressing end.

In this embodiment, as shown in fig. 11, the shielding member B200 has a seam, the seam penetrates through the whole shielding member B200 from front to back, as shown in fig. 12, two side seams of the seam are composed of straight line sections 2071 and oblique line sections 2072, the oblique line sections 2072 of the two side seams are in seamless lap joint, the straight line sections 2071 of the two side seams are staggered up and down, that is, the seam penetrates through the necking section 201, the elastic contact section 202 and the pressing section 203, the seam a207 is formed on the necking section 201, the seam B208 is formed on the elastic contact section 202, and the seam C209 is formed on the pressing section 203.

In this embodiment, as shown in fig. 8, a slot is formed on a side wall of the elastic contact section 202, the slot extends to a joint of the elastic contact section 202 and the necking section 201, a plurality of elastic contact arms 204 are formed on a rear end wall of the slot, the elastic contact arms 204 extend axially, and convex contact heads are disposed at front ends of the elastic contact arms 204, and in a process of mounting the shielding component, the elastic contact arms 204 are compressed and deformed inwards after the shielding component is mounted on a housing of the female connector, so that the elastic contact arms 204 have elastic restoring force, and when the shielding component is mounted, the contact heads can always contact with the housing under the action of the elastic restoring force, thereby ensuring shielding performance of the shielding component.

In this embodiment, as shown in fig. 8, a plurality of outward tilting elastic pieces 205 are disposed on the rear end surface of the necking section 201, and on the lower projection surface, the elastic pieces 205 are located in the slots, during the installation process of the shielding component, the elastic pieces 205 are compressed downward, and then the elastic pieces 205 have elastic restoring force, and when the shielding component is installed, the elastic pieces 205 are contacted with the housing under the action of the elastic restoring force, so as to further ensure the shielding performance of the shielding component.

In this embodiment, as shown in fig. 8, a positioning notch 206 is formed between two adjacent elastic sheets 205, a stopper a301 that is clamped into the positioning notch 206 is provided at the front end of the insulator 300, preferably, two elastic sheets 205 are provided in one slot, and the two elastic sheets 205 are symmetrical with respect to the positioning notch 206, and positioning and mounting of the insulator 300 and the shielding member B200 can be achieved through cooperation of the positioning notch 206 and the stopper a 301.

In this embodiment, as shown in fig. 7, two slots a303 and two slots B304 are formed in the insulator 300 located in the elastic contact section 202, the two slots a303 and the two slots B304 are symmetrical with each other with respect to the limiting block a301, the slot a303 is located in front of the slot B304, and the slots a303 and B304 can match the impedance of the connector, so as to improve the electrical performance of the connector.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (10)

1. A shield, characterized by: the shielding piece is characterized by comprising a wiring seam, wherein the wiring seam penetrates through the whole shielding piece from front to back, two side seams of the wiring seam consist of straight line sections and oblique line sections, the oblique line sections of the side seams are in seamless lap joint, and the straight line sections of the side seams are staggered up and down.

2. A shield according to claim 1, wherein: the device comprises a necking section, an elastic contact section and a compacting section which are sequentially connected, wherein a slot hole is formed in the side wall of the elastic contact section, the slot hole extends to the joint of the elastic contact section and the necking section, a plurality of elastic contact arms are formed in the rear end wall of the slot hole, the elastic contact arms axially extend, and an outwards protruding contact head is arranged at the front end of each elastic contact arm.

3. A shield according to claim 2, wherein: the rear end face of the necking section is provided with a plurality of outward tilting elastic pieces, and the elastic pieces are positioned in the slotted holes on the lower projection surface.

4. A shielding assembly, characterized by: the novel shielding device comprises a shielding piece A, a shielding piece B, an insulator, an inner conductor and a twisted pair, wherein the shielding piece B is the shielding piece of claim 3, the inner conductor is installed in the insulator, the insulator is installed in the shielding piece B, the front end of the insulator is abutted to the necking section of the shielding piece B, the rear end of the insulator is located in the compacting section of the shielding piece B, the front end of the shielding piece A is inserted into the compacting section of the shielding piece B, the rear end of the insulator is inserted into the shielding piece A, the twisted pair is installed in the shielding piece A, and a core wire of the twisted pair is connected with the corresponding inner conductor.

5. A shielding assembly according to claim 4, wherein: the shielding piece A is provided with a branching section, a crimping section and an inserting section, the rear end of the branching section is connected with the crimping section, the front end of the branching section is connected with the inserting section, the branching section is composed of two cover plates which are oppositely arranged, a threading cavity is formed between the two cover plates, a middle separation retaining wall is arranged on the opposite face of each cover plate, the middle separation retaining wall divides the threading cavity into two threading holes for threading, and the two middle separation retaining walls are in contact or staggered intersection or opposite and are provided with gaps.

6. A shielding assembly according to claim 5, wherein: the outer side wall of the cover plate is provided with an axially extending groove, the rear end of the groove is provided with a stiffening platform, the branching sections are smaller than the crimping sections and the inserting sections, and the angle between the step surface formed between the inserting sections and the branching sections and the stiffening platform is 90+/-5 degrees.

7. The shielding assembly according to any one of claims 4-6, wherein: the twisted pair wire positioned in the crimping section of the shielding piece A is sleeved with a shielding piece C, the shielding piece C is positioned in the crimping section, and a shielding layer of the twisted pair wire penetrates out of the inner side wall of the shielding piece C and is crimped between the crimping section and the shielding piece C.

8. A shielding assembly according to claim 5 or 6, wherein: the front end of the plug-in section is provided with a limiting gap, a limiting block B is arranged on an insulator in the compression section, and the limiting block B is clamped into the limiting gap and is abutted to the limiting gap.

9. A shielding assembly according to claim 4, wherein: a positioning gap is formed between two adjacent elastic sheets, and a limiting block A clamped in the positioning gap is arranged at the front end of the insulator.

10. A shielding assembly according to claim 9, wherein: two slotted holes A and two slotted holes B are formed in the insulator positioned in the elastic contact section, the two slotted holes A and the two slotted holes B are symmetrical relative to the limiting block A, and the slotted holes A are positioned in front of the slotted holes B.