High-shielding HDMI (High-Definition Multimedia Interface) connector structure

By improving the structure of the HDMI connector's plastic base and shielding shell, the problems of electromagnetic interference and insufficient heat dissipation were solved, thereby improving the stability of high-frequency data transmission and signal quality.

CN223898752UActive Publication Date: 2026-02-10DONGGUAN ZHENGXIN ELECTRONIC CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520484177.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-10
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

Existing HDMI connectors suffer from electromagnetic interference during high-frequency data transmission, and the insufficient pin length leads to poor heat dissipation.

Method used

Design a highly shielded HDMI connector structure by integrally molding the plastic base and pins, and using the slots and rear baffle of the shielding shell to cover the pins. Combined with the side arm and PCB board positioning, it achieves comprehensive electromagnetic shielding and good heat dissipation.

Benefits of technology

The electromagnetic shielding and heat dissipation performance of the pins have been improved, enhancing the stability and signal transmission quality of the HDMI connector.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223898752U_ABST
    Figure CN223898752U_ABST
Patent Text Reader

Abstract

The utility model discloses an HDMI connector structure with high shielding, comprising a plastic seat, a PIN needle and a shielding shell, the plastic seat comprises a positioning seat, an insertion tongue portion extending forward from the front wall of the upper portion of the positioning seat and side arms extending forward from the two sides of the front wall of the positioning seat, the side arms are arranged below the insertion tongue portion, the PIN needle and the plastic seat are integrally formed, and the shielding shell is arranged on the plastic seat. The PIN extends to the positioning seat from the inserting tongue part and extends out of the lower end wall of the positioning seat, the shielding shell comprises a main body provided with an inserting groove, a rear baffle arranged on the upper wall of the main body and side baffles arranged on the two sides of the main body, the inserting tongue part is arranged in the inserting groove, and the rear baffle is bent to the rear wall of the positioning seat and shields the position, located on the rear baffle, of the PIN. After the plastic seat and the PINs are subjected to integral injection molding, the insertion tongue parts of the plastic seat are mounted in the insertion slots, and then the rear baffle plate is bent to limit the rear wall of the positioning seat, so that relatively comprehensive electromagnetic shielding can be realized even if the PINs are relatively long.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of data connectors, and in particular to an HDMI connector structure with high shielding. Background Technology

[0002] HDMI is a fully digital video and audio transmission interface that can transmit uncompressed audio and video signals. HDMI can transmit audio and video signals simultaneously, and because audio and video signals use the same cable, it greatly simplifies the installation of system wiring.

[0003] However, in actual design, existing HDMI cables generally include terminals, a plastic shell, and a metal shell. The metal shell acts as a shield to block external interference, thereby ensuring stable data signal transmission.

[0004] Existing HDMI connectors, such as Chinese patent 202322803870.X, generally use shorter pins for the board-side connector to reduce electromagnetic interference and thus improve the stability of data transmission.

[0005] The customer's requirement was to increase the length of the PIN pins to improve heat dissipation for high-frequency data transmission. Utility Model Content

[0006] The main purpose of this invention is to propose an HDMI connector structure with high shielding. It aims to increase the pin length while improving the structure of the shielding shell, thereby ensuring the stability of the connector board and maintaining the shielding effect, and reducing electromagnetic interference.

[0007] To achieve the above objectives, this utility model proposes an HDMI connector structure with high shielding, comprising:

[0008] A plastic base, the plastic base including a positioning base, a tongue extending forward from the upper front wall of the positioning base, and side arms extending forward from both sides of the front wall of the positioning base, the side arms being located below the tongue;

[0009] PIN pin, which is integrally formed with the plastic base, extends from the tongue to the positioning base and protrudes from the lower end wall of the positioning base;

[0010] The shielding shell includes a main body with slots, a rear baffle on the upper wall of the main body, and side baffles on both sides of the main body.

[0011] The tongue is located inside the slot, and the rear baffle is bent to the rear wall of the positioning seat, thus blocking the PIN pin from being located on the rear plate.

[0012] In actual assembly, after the plastic base and PIN pin are injection molded as a whole, the tongue of the plastic base is installed into the slot, and then the back baffle is bent to limit the back wall of the positioning base. Therefore, even if the PIN pin is long, relatively comprehensive electromagnetic shielding can be achieved.

[0013] Therefore, a large clearance is provided below the shielding shell and the tongue, which is used to install the intended electronic components. At the same time, it can also provide a better heat dissipation area, improving the stability of the HDMI connector.

[0014] The side arms can be used for positioning with the PCB board, or they can be installed in a pre-designed housing. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention;

[0016] Figure 2 This is an exploded view of the present invention;

[0017] Figure 3 This is a three-dimensional schematic diagram of the present utility model. Figure 1 ;

[0018] Figure 4 This is a three-dimensional schematic diagram of the present utility model. Figure 2 ;

[0019] Figure 5 3D illustration of the plastic base Figure 1 ;

[0020] Figure 6 3D illustration of the plastic base Figure 2 ;

[0021] Figure 7 3D schematic diagram of the shielding shell Figure 1 ;

[0022] Figure 8 3D schematic diagram of the shielding shell Figure 2 .

[0023] In the picture,

[0024] 1 is the plastic base, 11 is the positioning base, 12 is the insertion tongue, and 13 is the side arm.

[0025] 2 represents the pin, and 20 represents the bend section.

[0026] 3 is the shielding shell, 30 is the main body, 31 is the slot, 32 is the rear baffle, and 33 is the side baffle.

[0027] 41 is the first leg, and 42 is the second leg.

[0028] 5 is the buckle arm.

[0029] 61 is the card slot, 62 is the card protrusion.

[0030] 7 is a side stop block.

[0031] 81 is a retaining clip, 82 is a spring clip.

[0032] 91 is the first solder joint, and 92 is the second solder joint. Detailed Implementation

[0033] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0034] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0036] like Figures 1 to 8 As shown, an HDMI connector structure with high shielding includes:

[0037] Plastic base 1, the plastic base 1 includes a positioning base 11, a tongue portion 12 extending forward from the upper front wall of the positioning base 11, and side arms 13 extending forward from both sides of the front wall of the positioning base 11, the side arms 13 being located below the tongue portion 12.

[0038] PIN pin 2, which is integrally formed with plastic base 1, extends from tongue portion 12 to positioning base 11 and protrudes from the lower end wall of positioning base 11;

[0039] The shielding shell 3 includes a main body 30 with a slot 31, a rear baffle 32 disposed on the upper wall of the main body 30, and side baffles 33 disposed on both sides of the main body 30.

[0040] The tongue portion 12 is located inside the slot 31, and the rear baffle 32 is bent to the rear wall of the positioning seat 11, thus blocking the position of the PIN pin 2 on the rear plate.

[0041] In actual assembly, after the plastic base 1 and PIN pin 2 are integrally injection molded, the tongue 12 of the plastic base 1 is installed in the slot 31, and then the rear baffle 32 is bent to limit the rear wall of the positioning base 11. Therefore, even if the length of the PIN pin 2 is relatively long, relatively comprehensive electromagnetic shielding can be achieved.

[0042] Therefore, a large clearance is provided below the shielding shell 3 and the tongue portion 12, which is used to install predetermined electronic components, and at the same time, it can also provide a better heat dissipation area, improving the stability of the HDMI connector.

[0043] The side arm 13 can be used for positioning with the PCB board, or it can be installed in a predetermined housing.

[0044] Specifically, the PIN pin 2 is located at a bent section 20 on the back plate. The bent section 20 is exposed on the wall of the positioning seat 11, thereby improving the heat dissipation effect of the PIN pin 2, reducing heat accumulation, and improving signal transmission stability. Specifically, an insulating layer can be coated at the bent section 20.

[0045] In this embodiment of the utility model, the lower wall of the positioning seat 11 and the lower wall of the front end of the side arm 13 extend downwards with a first leg 41 and a second leg 42, respectively. In actual design, corresponding slots can be set at the plate end for locking.

[0046] Specifically, the main body 30 has rearwardly extending buckle arms 5 on both sides of its rear end. The buckle arms 5 are used to abut against the rear wall of the positioning seat 11. By bending the buckle arms 5 backward, the plastic seat 1 and the shielding shell 3 are further fixed together.

[0047] In this embodiment of the utility model, the rear wall of the main body 30 is provided with a slot 61, and the positioning seat 11 is provided with a protrusion 62 that cooperates with the slot 61, which plays a role in initial positioning during installation.

[0048] Specifically, the front end of the card protrusion 62 is arc-shaped, thus serving a guiding function.

[0049] In this embodiment of the present invention, the positioning seat 11 has rearwardly extending side blocks 7 on both sides of its rear wall. The rear wall of the side blocks 7 is higher than the rear wall of the rear baffle 32, thereby limiting the movement of both sides of the rear baffle 32.

[0050] Specifically, the upper wall of the main body 30 is provided with a retaining strip 81 protruding towards the slot 31, and the lower wall of the main body 30 is provided with a spring piece 82 protruding towards the slot 31. The retaining strip 81 and the spring piece are used to achieve the retaining of the male head. The retaining strip has a simple and stable structure and can be formed by direct stamping.

[0051] In this embodiment of the utility model, the side baffle 33 bends from the rear end of the main body 30 toward both sides.

[0052] Specifically, the rear of the main body 30 is provided with a downwardly extending first solder foot 91, and the front of the side baffle 33 is provided with a downwardly extending second solder foot 92. The first solder foot and the second solder foot are staggered, thereby improving the stability of the soldering plate. The setting of the solder foot reduces the force on the PIN pin 2 and improves the stability of use. The rear end of the PIN pin is set horizontally, which facilitates the use of surface mount soldering for the soldering plate.

[0053] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An HDMI connector structure with high shielding, characterized in that, include: A plastic base, the plastic base including a positioning base, a tongue extending forward from the upper front wall of the positioning base, and side arms extending forward from both sides of the front wall of the positioning base, the side arms being located below the tongue; PIN pin, which is integrally formed with the plastic base, extends from the tongue to the positioning base and protrudes from the lower end wall of the positioning base; The shielding shell includes a main body with slots, a rear baffle on the upper wall of the main body, and side baffles on both sides of the main body. The tongue is located inside the slot, and the rear baffle is bent to the rear wall of the positioning seat, thus blocking the PIN pin from being located on the rear plate.

2. The HDMI connector structure with high shielding as described in claim 1, characterized in that: The PIN pin is located in a bent section on the back plate, and the bent section is exposed on the wall of the positioning seat.

3. The HDMI connector structure with high shielding as described in claim 1, characterized in that: The lower wall of the positioning seat and the lower wall of the front end of the side arm extend downwards with a first leg and a second leg, respectively.

4. The HDMI connector structure with high shielding as described in claim 1, characterized in that: The main body has rearwardly extending latch arms on both sides at the rear end, which are used to abut against the rear wall of the positioning seat.

5. The HDMI connector structure with high shielding as described in claim 1, characterized in that: The rear wall of the main body is provided with a slot, and the positioning seat is provided with a protrusion that cooperates with the slot.

6. The HDMI connector structure with high shielding as described in claim 5, characterized in that: The front end of the card protrusion is arc-shaped.

7. The HDMI connector structure with high shielding as described in claim 1, characterized in that: The positioning seat has rearwardly extending side blocks on both sides of its rear wall, and the rear wall of the side blocks is higher than the rear wall of the rear baffle.

8. The HDMI connector structure with high shielding as described in claim 1, characterized in that: The upper wall of the main body is provided with a retaining strip protruding towards the slot, and the lower wall of the main body is provided with a spring piece protruding towards the slot.

9. The HDMI connector structure with high shielding as described in claim 1, characterized in that: The side panels bend from the rear end of the main body to both sides.

10. The HDMI connector structure with high shielding as described in claim 1, characterized in that: The rear of the main body is provided with a first weld foot extending downward, and the front of the side baffle is provided with a second weld foot extending downward, with the first weld foot and the second weld foot being staggered.

Citation Information

Patent Citations

  • HDMI metal shielding shell and HDMI connector

    CN221009411U