HDMI connector capable of reducing noise

Abstract

The utility model discloses a high-definition multimedia interface (HDMI) connector capable of reducing noise, which comprises a plastic terminal assembly, and the plastic terminal assembly comprises a plastic body and a plurality of signal pins embedded and formed in the plastic body. The connector comprises a plastic terminal assembly and a metal shell, the metal shell wraps the periphery of the plastic terminal assembly, an insertion cavity for a male head to be inserted is formed in the plastic terminal assembly and the metal shell, a plurality of elastic sheet structures are arranged on the upper wall and the lower wall of the metal shell, and contact protruding points extending into the insertion cavity are arranged at the front ends of the elastic sheet structures. And the shielding plate is vertically installed at one end of the metal shell, and the shielding plate is provided with an avoiding opening which is used for the insertion of a male head and is correspondingly communicated with the insertion cavity. According to the utility model, the signal interference can be effectively suppressed, the structure is simple, the assembly is flexible, the device can adapt to different application scenes, and the universality is high.

Description

[Technical field]

[0001] The utility model belongs to the technical field of connectors, and in particular relates to an HDMI connector capable of reducing noise. [Background technology]

[0002] Connectors are used to connect two active devices and transmit electrical signals. However, during high-intensity data transmission, noise, noise coupling to other signals, and crosstalk are very likely to occur. The various noises that occur will reduce the quality of the connector and greatly affect the user experience.

[0003] Therefore, a related noise reduction structure is designed on the connector to eliminate noise. For example, the Chinese patent authorization announcement number is CN211320486U, and the patent name is an anti-interference type SCSI connector, which includes a shell frame, a plurality of transmission pins and a plurality of grounding pins arranged and mounted on the shell frame, and is characterized in that: a first mounting bracket and a second mounting bracket combined with each other are mounted in the shell frame, and the first mounting bracket and the second mounting bracket are both arranged with transmission pins and grounding pins, and a noise reduction shielding member is arranged between the first mounting bracket and the second mounting bracket. Although the noise reduction shielding member can reduce noise, the noise reduction shielding member is arranged inside the connector, and the structure of the noise reduction shielding member is complicated, which increases the difficulty of connector assembly production, reduces production efficiency, and increases production costs.

[0004] Therefore, it is necessary to provide an HDMI connector that can reduce noise to solve the above technical problems. [Contents of the utility model]

[0005] The main purpose of the utility model is to provide an HDMI connector that can reduce noise, can effectively suppress signal interference, and has a simple structure, flexible assembly, can be adapted to different application scenarios, and has high versatility.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: an HDMI connector capable of reducing noise, comprising:

[0007] A plastic terminal assembly, the plastic terminal assembly comprising a plastic body and a plurality of signal pins embedded and molded in the plastic body;

[0008] A metal shell, the metal shell is covered on the periphery of the plastic terminal assembly, the plastic terminal assembly and the metal shell form a plug-in cavity for inserting a male plug, the upper and lower walls of the metal shell are provided with a plurality of spring structures, and the front end of the spring structure is provided with a contact protrusion extending into the plug-in cavity;

[0009] A shielding plate is vertically installed at one end of the metal shell, and an avoidance opening for inserting a male head and corresponding to and communicating with the insertion cavity is provided on the shielding plate.

[0010] Further, a pair of mounting ears extending outwards from both sides of the metal shell are oppositely arranged at the opening end of the insertion cavity of the metal shell, and first threaded holes are provided on the mounting ears.

[0011] Further, second threaded holes corresponding to the positions of the first threaded holes are provided on the shielding plate, and the shielding plate is vertically installed at one end of the metal shell through screws.

[0012] Further, the shielding plate is made of metal material.

[0013] Further, a tongue plate horizontally extending into the insertion cavity is provided at one end of the plastic body, and one end of the signal pin horizontally extends to the upper and lower surfaces of the tongue plate alternately, forming an electrical contact surface exposed on the surface of the tongue plate.

[0014] Further, the other end of the signal pin is bent and vertically extends out of the lower surface of the plastic body, forming a welding pin for welding with the PCB board.

[0015] Further, guide grooves for smoothly installing the plastic terminal assembly into the metal shell and limiting blocks for limiting the plastic terminal assembly from disengaging from the metal shell outward are provided on the front and rear sides of the tail end of the metal shell.

[0016] Further, guide blocks extending into the guide grooves are correspondingly provided on the front and rear sides of the tail end of the plastic body. When the guide blocks extend into the guide grooves, the front ends of the guide blocks abut against the inner walls of the guide grooves to limit the plastic terminal assembly 1 from moving forward continuously.

[0017] Further, a hollow notch for the signal pin to pass through is provided on the lower wall of the metal shell.

[0018] Further, a plurality of fixing pins extending downward are formed on both sides of the metal shell, and the fixing pins are matched and positioned with the slots on the PCB board.

[0019] Compared with the prior art, the beneficial effects of the HDMI connector capable of reducing noise of the present utility model are as follows: A shielding plate is installed at one end of the metal shell, which can effectively suppress signal interference. Moreover, compared with the prior art, the shielding plate designed in this solution is installed at the outer end of the metal shell through screws, which is independent and simple, flexible in assembly, high in installation efficiency, and can reduce production costs; and different-sized shielding plates can be replaced by loosening the screws to adapt to different application scenarios, and the versatility is relatively high.

Description of the Drawings

[0020] Figure 1 Schematic three - dimensional structure diagram of the HDMI connector capable of reducing noise according to an embodiment of the present utility model welded on a PCB board;

[0021] Figure 2 Schematic three - dimensional structure diagram of the HDMI connector capable of reducing noise according to an embodiment of the present utility model;

[0022] Figure 3 Schematic three - dimensional structure diagram of the HDMI connector capable of reducing noise according to an embodiment of the present utility model;

[0023] Figure 4 Schematic three - dimensional structure diagram of the plastic terminal assembly according to an embodiment of the present utility model;

[0024] Figure 5 Schematic three - dimensional structure diagram of the metal housing according to an embodiment of the present utility model;

[0025] Figure 6 Schematic three - dimensional structure diagram of the shielding plate according to an embodiment of the present utility model;

[0026] The numbers in the figure represent:

[0027] 100 - HDMI connector capable of reducing noise;

[0028] 1 - Plastic terminal assembly, 11 - Plastic body, 111 - Guide block, 12 - Signal pin, 121 - Welding pin, 13 - Tongue plate, 14 - Electrical contact surface;

[0029] 2 - Metal housing, 21 - Guide groove, 22 - Limit block, 23 - Spring structure, 231 - Contact bump, 24 - Hollow notch, 25 - Fixed pin, 26 - Mounting ear, 261 - First threaded hole;

[0030] 3 - Shielding plate, 31 - Avoidance opening, 32 - Second threaded hole;

[0031] 4 - PCB board; 5 - Insertion cavity; 6 - Screw.

Detailed implementation manner

[0032] Please refer to Figures 1-6 , this embodiment is an HDMI connector capable of reducing noise. The HDMI connector 100 capable of reducing noise includes a plastic terminal assembly 1, a metal housing 2 wrapped around the outer periphery of the plastic terminal assembly 1, a shielding plate 3 vertically arranged at one end of the metal housing 2, and a PCB board 4 that is welded to the plastic terminal assembly 1 to achieve electrical connection. An insertion cavity 5 for inserting a male head is formed inside the plastic terminal assembly 1 and the metal housing 2.

[0033] The plastic terminal assembly 1 includes a plastic body 11 and a plurality of signal pins 12 embedded and formed in the plastic body 11. One end of the plastic body 11 is provided with a tongue plate 13 that horizontally extends into the insertion cavity 5. One end of the signal pin 12 horizontally extends alternately to the upper and lower surfaces of the tongue plate 13, forming an electrical contact surface 14 exposed on the surface of the tongue plate 13. The electrical contact surface 14 elastically contacts the signal terminals of the male head to achieve electrical connection. The other end of the signal pin 12 is bent and vertically extends out of the lower surface of the plastic body 11, forming a welding pin 121 for welding with the PCB board 4. A plurality of welding holes for welding the signal pins 12 are provided on the PCB board 4.

[0034] On the front and rear sides of the tail end of the metal housing 2, there are provided guide grooves 21 for smoothly installing the plastic terminal assembly 1 into the metal housing 2 and limiting blocks 22 for restricting the plastic terminal assembly 1 from disengaging outward from the metal housing 2. On the corresponding front and rear sides of the tail end of the plastic body 11, there are provided guide blocks 111 extending into the guide grooves 21. Through the cooperation of the guide blocks 111 and the guide grooves 21, on the one hand, it plays a role of guiding and positioning, enabling the installation and guiding positioning between the plastic terminal assembly 1 and the metal housing 2, and smoothly installing and positioning the plastic terminal assembly 1 inside the metal housing 2. On the other hand, the front end of the guide block 111 abuts against the inner wall of the guide groove 21, which can limit the plastic terminal assembly 1 from moving forward continuously; the provided limiting blocks 22 horizontally extend out of the end of the metal housing 2. After the plastic terminal assembly 1 is installed inside the metal housing 2, the two limiting blocks 22 are horizontally bent and riveted in the opposite direction at the end of the plastic terminal assembly 1, which can restrict the plastic terminal assembly 1 from disengaging outward from the metal housing 2.

[0035] On the upper and lower walls of the metal housing 2, there are provided a plurality of elastic sheet structures 23. The front end of the elastic sheet structure 23 is provided with contact bumps 231 extending into the insertion cavity 5; on the lower wall of the metal housing 2, there is provided a hollow notch 24 for the signal pins 12 to pass through; on both sides of the metal housing 2, there extend downward to form a plurality of fixed pins 25, and the fixed pins 25 are positioned in cooperation with the slots on the PCB board 4; on the opening end of the insertion cavity 5 of the metal housing 2, there are oppositely provided a pair of mounting ears 26 extending out of the metal housing 2 to both sides, and the mounting ears 26 are vertically arranged, and the mounting ears 26 are provided with first threaded holes 261.

[0036] On the shielding plate 3, there is provided an avoidance opening 31 for the male head to insert and corresponding to and communicating with the insertion cavity 5, and the longitudinal cross-sectional shape of the avoidance opening 31 is the same as the longitudinal cross-sectional shape of the insertion cavity 5. On the shielding plate 3, there are provided two second threaded holes 32 corresponding to the positions of the first threaded holes 261. The shielding plate 3 is installed at one end of the metal housing 2 through screws 6.

[0037] The material of the shielding plate 3 is a metal material, which can preferably be a nickel-plated metal or a manganese-plated metal. The nickel-plated metal can suppress the interference of high-frequency signals, and the manganese-plated metal can suppress the interference of low-frequency signals. The material of the shielding plate 3 can be selected according to the actual application situation.

[0038] When applying the HDMI connector 100 capable of reducing noise provided by this solution, a shielding plate 3 is installed at one end of the metal shell 2, which can effectively suppress signal interference. Moreover, compared with the prior art, the shielding plate 3 designed in this solution is installed at the outer end of the metal shell 2 through screws 6, and has a simple structure, flexible assembly, high installation efficiency, and can reduce production costs; and different-sized shielding plates 3 can be replaced by loosening the screws 6 to adapt to different application scenarios, with high versatility.

[0039] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An HDMI connector capable of reducing noise, characterized in that: It includes: A plastic terminal assembly, the plastic terminal assembly comprising a plastic body and a plurality of signal pins embedded and molded in the plastic body; A metal shell, the metal shell is covered on the periphery of the plastic terminal assembly, the plastic terminal assembly and the metal shell form a plug-in cavity for inserting a male plug, the upper and lower walls of the metal shell are provided with a plurality of spring structures, and the front end of the spring structure is provided with a contact protrusion extending into the plug-in cavity; A shielding plate is vertically mounted on one end of the metal shell, and is provided with an escape opening for inserting a male plug and correspondingly communicating with the plug-in cavity.

2. The HDMI connector capable of reducing noise as claimed in claim 1, characterized in that: The metal shell is provided with a pair of mounting ears which extend out of the metal shell to both sides opposite to each other at the opening end of the plug-in cavity, and the mounting ears are provided with first threaded holes.

3. The HDMI connector capable of reducing noise as claimed in claim 2, characterized in that: The shielding plate is provided with a second threaded hole corresponding to the position of the first threaded hole, and the shielding plate is vertically mounted on one end of the metal shell by screws.

4. The HDMI connector capable of reducing noise as claimed in claim 1, characterized in that: The shielding plate is made of metal.

5. The HDMI connector capable of reducing noise as claimed in claim 1, characterized in that: A tongue plate extending horizontally into the plug cavity is disposed at one end of the plastic body, and one end of the signal pin extends horizontally alternately to the upper and lower surfaces of the tongue plate to form an electrical contact surface exposed on the surface of the tongue plate.

6. The HDMI connector capable of reducing noise as claimed in claim 1, characterized in that: The other end of the signal pin is bent and vertically extends out of the lower surface of the plastic body to form a welding pin welded to the PCB board.

7. The HDMI connector capable of reducing noise as claimed in claim 1, characterized in that: The front and rear sides of the tail end of the metal shell are provided with guide grooves for smoothly installing the plastic terminal assembly into the metal shell and limit blocks for limiting the plastic terminal assembly from escaping from the metal shell outwards.

8. The HDMI connector capable of reducing noise as claimed in claim 7, characterized in that: The tail end of the plastic body is provided with guide blocks extending into the guide groove on both sides thereof. When the guide block extends into the guide groove, the front end of the guide block abuts against the inner wall of the guide groove to limit the plastic terminal assembly (1) from continuing to move forward.

9. The HDMI connector capable of reducing noise as claimed in claim 1, characterized in that: The lower wall of the metal shell is provided with a hollow notch for the signal needle to pass through.

10. The HDMI connector capable of reducing noise as claimed in claim 1, characterized in that: A plurality of fixing pins are formed on both sides of the metal shell extending downward, and the fixing pins are matched with slots on the PCB board for positioning.

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