CN220324862U

CN220324862U - HDMI2.1 wire harness with strong EMI shielding

Info

Publication number: CN220324862U
Application number: CN202220564850.4U
Authority: CN
Inventors: 张利荣; 赵福川
Original assignee: Hongshuo Precision Electrician Hubei Co ltd; HOTRON PRECISION ELECTRONIC INDUSTRIAL (SUZHOU) CO LTD
Current assignee: Hongshuo Precision Electrician Hubei Co ltd; HOTRON PRECISION ELECTRONIC INDUSTRIAL (SUZHOU) CO LTD
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2024-01-09
Anticipated expiration: 2032-03-15

Abstract

The application relates to the technical field of 8K high definition HDIM pencil, especially, relate to a strong EMI shielding's HDMI2.1 pencil, it includes the transmission line, and the both ends of transmission line all are connected with the HDMI connector, the HDMI connector is last to be covered with shielding assembly, the outside winding of copper line has the electrically conductive cloth of graphite alkene. The method and the device have the effect of meeting the MEI shielding requirement of 8K data.

Description

HDMI2.1 wire harness with strong EMI shielding

Technical Field

The application relates to the technical field of 8K high definition HDIM pencil, especially relates to a strong EMI shielding's HDMI2.1 pencil.

Background

The current 8K HDMI wire harness generally adopts an HMDI2.1 data wire, and the HDMI2.1 data wire is a novel data wire applying audio and video transmission and supports 8K/60Hz, 4K/120Hz video and Dynamic HDR (Dynamic HDR) signal transmission. The latest HDMI version introduced in 1 in 2017 has a bandwidth greatly increased to 48Gbps, and can support images up to 7680X1320/60 Hz (8K/60 p) or higher frame rate images of 4K/120 Hz. In terms of sound effects, HDMI2.1 supports a new eARC (Enhanced Audio Return Channel) technology, and compared with the existing ARC (Audio Return Channel), the Object-based sound effects such as Dolby Atmos can be returned. With the development of the age, the application of the HMDI2.1 data line is also becoming wider and wider.

For the above related art, the inventor finds that the current HDMI 2.1K data line transmits data that suddenly flies from 18Gpbs to 48gbps compared with the HDMI 2.0K data line, and therefore a transmission line that can meet the EMI shielding level requirement during 8K data transmission is needed.

Disclosure of Invention

In order to solve the technical problem, the application provides a strong EMI shielding HDMI2.1 harness, which has the advantage of meeting the requirement of 8K data on MEI shielding.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a strong EMI shielding's HDMI2.1 pencil, includes the transmission line, and the both ends of transmission line all are connected with the HDMI connector, the cover has shielding assembly on the HDMI connector, the outside winding of transmission line has the flexible conductive cloth of graphite alkene.

By means of the technical scheme, the shielding component can play a role in shielding and protecting the HDMI connector, and interference of surrounding magnetic fields on signal data in the HDMI connector is reduced; meanwhile, the graphene flexible conductive cloth plays a role in shielding and protecting data in the transmission line, so that the whole HDMI wire harness is shielded and protected through the shielding component and the graphene flexible conductive cloth in the signal transmission process, and further 8K data transmission is not interfered, the graphene flexible conductive cloth plays a role in shielding and protecting the transmission line, so that interference loss of signals in the transmission line is reduced, normal transmission of 8K data is guaranteed, the wire is guaranteed to have good softness in a mode of aluminum foil and braiding, and the CLASS B EMI shielding level of CISPR32 can be achieved.

As a preferred scheme of this application, shielding assembly is including covering the last shield shell and the lower shield shell on the HDMI connector, be provided with the card on the lateral wall of lower shield shell, be provided with the bayonet socket that supplies the card lock on the last shield shell.

The technical scheme is achieved, the upper shielding shell and the lower shielding shell are fastened and fixed, the HDMI connector is clamped and fixed between the upper shielding shell and the lower shielding shell, shielding protection of the HDMI connector is achieved, and 8K data transmission is guaranteed to be free of interference.

As a preferable mode of the present application, the upper shield shell is provided with a fixing ring for fixing the transmission line, and the lower shield shell is provided with a pressing piece inserted into the fixing ring.

Realize above-mentioned technical scheme for the transmission line passes solid fixed ring and HDMI connector connection, then personnel operation preforming deformation and then makes the transmission line compressed tightly by the preforming and fix in solid fixed ring, and then makes transmission line and HDMI connector junction, can not take place crooked rocking, and then guarantees the stability that transmission line and HDMI connector are connected. And meanwhile, ribs are arranged on the inner wall of the fixed ring and the pressing sheet, so that the connection stability of the transmission line and the fixed ring is further ensured.

As a preferable scheme of the application, the joint of the connector and the transmission line is filled with a hot melt adhesive internal mold, and the dielectric constant of the hot melt adhesive internal mold is (3.4-4.2).

According to the technical scheme, the hot melt adhesive inner die plays a role in protecting the HDMI connector and the transmission line, and plays a role in isolating and protecting the wire cores of the two adjacent transmission lines, so that the mutual interference of the wire cores of the two adjacent transmission lines is prevented, and signal transmission between the HDMI connector and the transmission line is ensured.

As a preferred aspect of the present application, the shielding assembly is externally wrapped with an external mold.

The technical scheme is realized and is used for protecting the hot melt adhesive inner die, the shielding component and the HDMI connector.

As a preferred scheme of this application, be provided with the joint piece on the lateral wall of HDMI connector, set up the spacing groove that supplies the joint piece to inlay and put on the upper shield shell.

According to the technical scheme, the clamping block is inserted into the limiting groove, so that the position of the HDMI connector and the position of the lower shielding shell are fixed, and the protection effect of the upper shielding shell and the lower shielding shell on the HDMI connector is guaranteed.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the shielding component can play a role in shielding and protecting the HDMI connector, and signal data interference in the HDMI connector caused by surrounding magnetic fields is reduced; meanwhile, the graphene flexible conductive cloth plays a role in shielding and protecting data in a transmission line, so that shielding and protecting are respectively carried out through a shielding component and the graphene flexible conductive cloth in the signal transmission process of the whole HDMI wire harness, and further 8K data transmission is not interfered;

2. the hot melt adhesive inner die plays a role in protecting the HDMI connector and the transmission line, and plays a role in isolating and protecting the wire cores of the two adjacent transmission lines, so that the mutual interference of the wire cores of the two adjacent transmission lines is prevented, and signal transmission between the HDMI connector and the transmission line is ensured.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of an HDMI2.1 harness with strong EMI shielding according to an embodiment of the present application.

Fig. 2 is an exploded view of an HDMI2.1 harness with strong EMI shielding in an embodiment of the present application.

Fig. 3 is an exploded schematic view of a shielding assembly in an HDMI2.1 harness with strong EMI shielding in an embodiment of the present application.

Fig. 4 is an exploded schematic view of a shielding assembly and an HDMI connector in an HDMI2.1 harness with strong EMI shielding according to an embodiment of the present application.

Reference numerals: 1. a transmission line; 2. an HDMI connector; 21. a clamping block; 3. a shielding assembly; 31. an upper shield case; 32. a lower shield case; 33. a card; 34. a buckle; 35. a limit groove; 36. a fixing ring; 37. tabletting; 4. a hot melt adhesive internal mold; 5. an outer mold; 6. graphene flexible conductive cloth.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a HDMI2.1 wire harness with strong EMI shielding. Referring to fig. 1 and 2, the HDMI2.1 harness with strong EMI shielding includes a transmission line 1 composed of various signal lines, and HDMI connectors 2 are connected to both ends of the transmission line 1. In order to prevent the HDMI connector 2 from being inserted into the relevant port, the connection between the HDMI connector 2 and the port is disturbed by electromagnetic model in the surrounding environment, and the HDMI connector 2 is externally sleeved with a shielding assembly 3.

Referring to fig. 2 and 3, the shield assembly 3 includes an upper shield shell 31 and a lower shield shell 32 made of metal, and the upper shield shell 31 and the lower shield shell 32 are wrapped outside the HDMI connector 2, so that the upper shield shell 31 and the lower shield form a metal shield, thereby reducing interference of electromagnetic fields in the surrounding environment on transmission signals in the HDMI connector 2. Simultaneously in order to guarantee the compactness of being connected between upper shield shell 31 and lower shield shell 32, all be provided with a pair of card 33 on two opposite lateral walls of lower shield shell 32, offered the bayonet socket that supplies card 33 joint on the lower shield shell 32 to make between upper shield shell 31 and the lower shield shell 32 lock fixed, press from both sides the tight fixation of HDMI connector 2 between upper shield shell 31 and lower shield shell 32 simultaneously, thereby accomplish the shielding protection effect to HDMI connector 2, and then guarantee 8K data transmission, not disturbed.

Referring to fig. 3 and 4, in order to prevent the HDMI connector 2 from moving in the axial direction of the lower shield assembly 3, the connector is extended from the upper shield shell 31 and cannot be protected, a clamping block 21 is provided on a side wall of the HDMI connector 2, and a limit groove 35 into which the clamping block 21 is inserted is provided on the upper shield shell 31, so that the positions of the HDMI connector 2 and the lower shield shell 32 are fixed, thereby ensuring the protection effect of the upper shield shell 31 and the lower shield shell 32 on the HDMI connector 2. Meanwhile, the fixing ring 36 is arranged on the upper shielding shell 31, the pressing sheet 37 inserted into the fixing ring 36 is arranged on the lower shielding shell 32, so that the transmission line 1 passes through the fixing ring 36 and is connected with the HDMI connector 2, then a person operates the pressing sheet 37 to deform, so that the transmission line 1 is pressed and fixed in the fixing ring 36 by the pressing sheet 37, the connection part of the transmission line 1 and the HDMI connector 2 is prevented from bending and shaking, and the connection stability of the transmission line 1 and the HDMI connector 2 is ensured. And ribs are arranged on the inner wall of the fixed ring 36 and the pressing piece 37, so that the connection stability of the transmission line 1 and the fixed ring 36 is further ensured.

Referring to fig. 2 and 3, in order to further prevent interference of electromagnetic fields in surrounding environment during signal transmission at the connection position of the HDMI connector and the transmission line 1, the connection position of the HDMI connector 2 and the transmission line 1 is integrally and externally wrapped with a hot melt adhesive internal mold 4, and the dielectric constant of the hot melt adhesive internal mold 4 is between (3.4-4.2), so that the hot melt adhesive internal mold 4 protects the HDMI connector 2 and the transmission line 1, and simultaneously protects the wire cores of two adjacent transmission lines 1 in an isolating manner, thereby preventing mutual interference of the wire cores of two adjacent transmission lines 1, and further ensuring signal transmission between the HDMI connector 2 and the transmission line 1.

Referring to fig. 2 and 3, an external mold 5 is fixed to the whole exterior of the shielding assembly 3 and the transmission line 1 for protecting the hot melt adhesive internal mold 4, the shielding assembly 3 and the HDMI connector 2. Meanwhile, the transmission line 1 is wound with the graphene flexible conductive cloth 6, so that the graphene flexible conductive cloth 6 plays a role in shielding and protecting the transmission line 1, interference loss of signals in transmission of the transmission line 1 is reduced, and normal transmission of 8K data is guaranteed.

The implementation principle of the HDMI2.1 wire harness with strong EMI shielding in the embodiment of the application is as follows: the shielding component 3 can play a role in shielding and protecting the HDMI connector 2, and reduce interference of surrounding magnetic fields on signal data in the HDMI connector 2; meanwhile, the graphene flexible conductive cloth 6 plays a role in shielding and protecting data in the transmission line 1, so that the whole HDMI wire harness is shielded and protected in the signal transmission process through the shielding component 3 and the graphene flexible conductive cloth 6 respectively, and further, 8K data transmission is not interfered. 1. The hot melt adhesive inner mold 4 plays a role in protecting the HDMI connector 2 and the transmission lines 1, and plays a role in isolating and protecting the wire cores of the two adjacent transmission lines 1, so that the mutual interference of the wire cores of the two adjacent transmission lines 1 is prevented, and the signal transmission between the HDMI connector 2 and the transmission lines 1 is ensured.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. An HDMI2.1 harness with strong EMI shielding, characterized in that: including transmission line (1), the both ends of transmission line (1) all are connected with HDMI connector (2), the cover has shielding component (3) on HDMI connector (2), the outside winding of transmission line (1) has flexible conductive cloth (6) of graphite alkene.

2. The strong EMI shielded HDMI2.1 harness of claim 1, wherein: the shielding assembly (3) comprises an upper shielding shell (31) and a lower shielding shell (32) which are covered on the HDMI connector (2), a card (33) is arranged on the side wall of the lower shielding shell (32), and a bayonet for the card (33) to be buckled is arranged on the upper shielding shell (31).

3. The strong EMI shielded HDMI2.1 harness of claim 2, wherein: the upper shielding shell (31) is provided with a fixing ring (36) for fixing the transmission line (1), and the lower shielding shell (32) is provided with a pressing sheet (37) inserted into the fixing ring (36).

4. A strong EMI shielded HDMI2.1 harness as set forth in claim 2 or 3, wherein: the HDMI connector is characterized in that a clamping block (21) is arranged on the side wall of the HDMI connector (2), and a limiting groove (35) for embedding the clamping block (21) is formed in the upper shielding shell (31).

5. The strong EMI shielded HDMI2.1 harness of claim 1, wherein: the connection part of the HDMI connector (2) and the transmission line (1) is filled with a hot melt adhesive internal mold (4), and the dielectric constant of the hot melt adhesive internal mold (4) is (3.4-4.2).

6. The strong EMI shielded HDMI2.1 harness of claim 4, wherein: the shielding assembly (3) is externally wrapped with an outer mold (5).