Interference blocking type HDMI (High Definition Multimedia Interface) electric connector

Abstract

The utility model relates to the technical field of electric connectors, and discloses an interference blocking type HDMI electric connector, which comprises a shell, an insulator is fixedly connected to the rear side of the interior of the shell, two metal woven meshes are fixedly connected to the front side of the interior of the shell, aluminum foils are fixedly connected to the interiors of the two metal woven meshes, and the aluminum foils are fixedly connected to the interiors of the two metal woven meshes. A terminal is fixedly connected to the front side of the interior of the insulator, a connector lug is fixedly connected to the rear side of the shell, guide grooves are formed in the upper side and the lower side of the interior of the shell, and a protection mechanism is arranged at the top of the shell and used for protecting the terminal. According to the utility model, the insulator blocks signal interferences of different lines and ensures stable transmission of signals, the housing constructs an electromagnetic shielding space, the metal woven mesh guides interference signals to the ground and prevents internal signal leakage, the aluminum foil strengthens low-frequency interference shielding, and the guide groove reduces interferences caused by unstable connection. Therefore, accurate, efficient and interference-free signal transmission is ensured.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to an interference-blocking HDMI electrical connector. Background Technology

[0002] An HDMI connector is a standardized interface device used for high-definition multimedia signal transmission. Its internal chip converts the analog signal output by the device into a digital signal for efficient transmission in digital transmission lines, ensuring signal quality and stability. At the receiving end, the decoder in the connector converts the received digital signal back into an analog signal, which is then output to the monitor and audio equipment to achieve correct audio and video display and playback.

[0003] HDMI connectors have shielding layers, but in environments with strong electromagnetic interference, such as near large motors or transformers, the shielding layer cannot completely block external electromagnetic fields, leading to signal interference and problems such as screen flickering, color distortion, or audio noise. Existing technology uses metal braided mesh as a shielding layer. Metal braided mesh has good conductivity and electromagnetic shielding performance, which can isolate the signal inside the cable from external electromagnetic interference. The higher the braiding density, the better the shielding effect. However, in actual use, the braided structure of metal braided mesh has certain gaps and holes. When electromagnetic interference is incident at a certain angle, it can enter the interior through these gaps and holes, affecting signal transmission and reducing interference performance. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an interference-blocking HDMI electrical connector, which aims to improve the problem that the braided structure of the metal braided mesh in the prior art has certain gaps and holes. When electromagnetic interference is incident at a certain angle, it will enter the interior through these gaps and holes, affecting signal transmission and causing a reduction in interference performance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an interference-blocking HDMI electrical connector, comprising a housing, an insulator fixedly connected to the rear inner side of the housing, two metal braided meshes fixedly connected to the front inner side of the housing, aluminum foil fixedly connected inside each of the two metal braided meshes, a terminal fixedly connected to the front inner side of the insulator, a connector fixedly connected to the rear inner side of the housing, guide grooves provided on the upper and lower inner sides of the housing, and a protective mechanism provided on the top of the housing for protecting the terminals.

[0006] As a further description of the above technical solution:

[0007] The protective mechanism includes a slide rail, the bottom of which is fixedly connected to the top front side of the housing. A fixing plate is fixedly connected to the rear side of the slide rail. Springs are fixedly connected to the left and right ends of the front side of the fixing plate. A sliding plate is slidably connected to the top front side of the slide rail. The front side of the spring is fixedly connected to the rear side of the sliding plate. Hinges are fixedly connected to the left and right ends of the front side of the sliding plate. A protective plate is fixedly connected to the bottom rear side of the hinges.

[0008] As a further description of the above technical solution:

[0009] A buckle fastener is fixedly connected to the bottom front side of the outer casing, and a pipe clamp is fixedly connected to the bottom of the protective plate.

[0010] As a further description of the above technical solution:

[0011] The top of the sliding plate is fixedly connected to multiple friction strips, all of which are rounded.

[0012] As a further description of the above technical solution:

[0013] Two grooves are provided on the front side of the outer casing, and two sealing strips are fixedly connected to the rear side of the protective plate.

[0014] As a further description of the above technical solution:

[0015] Two support rods are fixedly connected to the rear side of the fixing plate, and a connecting seat is fixedly connected to the top of the fixing plate.

[0016] As a further description of the above technical solution:

[0017] The connector has round holes on both the left and right sides inside, and a rotating rod is rotatably connected inside the round holes.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the rotating rod is rotatably and fixedly connected to a fixing sleeve, and the top of the fixing sleeve is fixedly connected to a hook.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the signal from the external device is transmitted to the terminal via the connector. The terminal, with its good conductivity, transmits the signal to the connected line. The insulator blocks the interference of signals from different lines, ensuring stable signal transmission. The outer shell constructs an electromagnetic shielding space. The metal braided mesh guides the interference signal to the ground and prevents internal signal leakage. The aluminum foil strengthens the shielding against low-frequency interference. The guide groove reduces interference caused by unstable connection, thereby achieving accurate, efficient and interference-free signal transmission.

[0022] 2. In this utility model, the operator pushes the sliding plate backward, which slides smoothly along the slide rail, compresses the spring, and converts the external force into elastic potential energy. The hinge converts the linear motion of the sliding plate into the rotation of the protective plate, pulls up the protective plate, and exposes the terminal for operation. After completion, the spring releases the elastic potential energy, pushes the sliding plate forward, drives the protective plate to rotate, and protects the terminal again, thereby protecting the terminal from the influence of the external environment. Attached Figure Description

[0023] Figure 1 This is a perspective view of an interference-blocking HDMI electrical connector proposed in this utility model.

[0024] Figure 2 This is a right view of an interference-blocking HDMI electrical connector proposed in this utility model.

[0025] Figure 3 This is an exploded view of the rotating rod of an interference-blocking HDMI electrical connector proposed in this utility model.

[0026] Figure 4 This is a cutaway diagram of the aluminum foil of an interference-blocking HDMI electrical connector proposed in this utility model.

[0027] Figure 5 This is a schematic diagram of the spring structure of an interference-blocking HDMI electrical connector proposed in this utility model.

[0028] Legend:

[0029] 1. Outer shell; 2. Protective mechanism; 201. Slide rail; 202. Fixing plate; 203. Spring; 204. Sliding plate; 205. Hinge; 206. Protective plate; 3. Insulator; 4. Metal braided mesh; 5. Aluminum foil; 6. Terminal; 7. Wiring head; 8. Guide groove; 9. Clip fastener; 10. Pipe clamp; 11. Friction strip; 12. Groove; 13. Sealing strip; 14. Support rod; 15. Connecting seat; 16. Round hole; 17. Rotating rod; 18. Fixing sleeve; 19. Hook. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 and Figure 4This utility model provides an embodiment of an interference-blocking HDMI electrical connector, including a housing 1 made of copper, aluminum, or their alloys to prevent external electromagnetic interference from entering the connector and to avoid electromagnetic wave leakage from internal signals, which could affect other devices. An insulator 3 is fixedly connected to the rear side of the interior of the housing 1, and two metal braided meshes 4 are fixedly connected to the front side of the interior of the housing 1. The metal braided meshes 4 have good conductivity and electromagnetic shielding performance, which can isolate the signals inside the cable from external electromagnetic interference. Aluminum foil 5 is fixedly connected to the interior of each of the two metal braided meshes 4. The aluminum foil 5 has good flexibility and shielding performance, which can further enhance the blocking ability against electromagnetic interference, especially for low-frequency interference signals, where the shielding effect of the aluminum foil 5 is more obvious. A terminal 6 is fixedly connected to the front side of the interior of the insulator 3, and a connector 7 is fixedly connected to the rear side of the housing 1. Guide grooves 8 are provided on the upper and lower sides of the interior of the housing 1 for guiding and preventing misalignment during wiring. A protection mechanism 2 is provided on the top of the housing 1 to protect the terminal 6.

[0032] Specifically, the outer shell 1 is made of copper, aluminum, or their alloys, which effectively blocks external electromagnetic interference from entering the connector and prevents electromagnetic wave leakage from internal signals, thus avoiding impact on other devices. An insulator 3 is connected to the rear inside the outer shell 1 to provide insulation protection for internal components. Two metal braided meshes 4 are fixed to the front inside the outer shell 1. The metal braided meshes 4, with their excellent conductivity and electromagnetic shielding performance, completely isolate the signals inside the cable from external electromagnetic interference. Aluminum foil 5 is connected inside both metal braided meshes 4. The aluminum foil 5 has excellent flexibility and shielding performance, and can further enhance the blocking effect against low-frequency interference signals. A terminal 6 is fixed to the front inside the insulator 3 to enable signal transmission. A connector 7 is connected to the rear inside the outer shell 1 for easy connection to external lines. Guide grooves 8 are provided on the upper and lower inside the outer shell 1 to guide the wiring process, effectively preventing misalignment and ensuring the accuracy and stability of the connection.

[0033] Reference Figure 5The protection mechanism 2 includes a slide rail 201. The bottom of the slide rail 201 is fixedly connected to the top front side of the housing 1. A fixing plate 202 is fixedly connected to the rear side of the slide rail 201. Springs 203 are fixedly connected to the left and right ends of the front side of the fixing plate 202. A sliding plate 204 is slidably connected to the top front side of the slide rail 201. The sliding plate 204 can slide back and forth on the slide rail 201. When sliding backward, it can compress the spring 203. When released, the spring 203 restores its elasticity and pushes the sliding plate 204 forward. The front side of the spring 203 is fixedly connected to the rear side of the sliding plate 204. Hinges 205 are fixedly connected to the left and right ends of the front side of the sliding plate 204. A protective plate 206 is fixedly connected to the bottom of the rear side of the hinge 205. When the sliding plate 204 slides backward, the protective plate 206 will be pulled to the top of the housing 1 through the rotation of the hinge 205, and the terminal 6 can be opened for wiring.

[0034] Specifically, a slide rail 201 is fixedly connected to the front top of the outer casing 1. A fixing plate 202 is connected to the rear side of the slide rail 201. Springs 203 are fixed to the left and right ends of the front side of the fixing plate 202. A sliding plate 204 on the front top is slidably connected to the slide rail 201, providing flexible forward and backward sliding functionality. When the sliding plate 204 is pushed backward, it compresses the spring 203, causing the spring 203 to store elastic potential energy. Once the sliding plate 204 is released, the spring 203 quickly recovers its elasticity, releases energy, and pushes the sliding plate 204 forward. Hinges 205 are connected to the left and right ends of the front side of the sliding plate 204. A protective plate 206 is fixed to the bottom rear side of the hinge 205. When the sliding plate 204 slides backward, the protective plate 206 is pulled to the top of the outer casing 1 through the rotation of the hinge 205, exposing the terminal 6, which is convenient for operators to open for wiring operations.

[0035] Reference Figure 1 , Figure 2 and Figure 4 A snap fastener 9 is fixedly connected to the bottom front side of the outer casing 1, and a pipe clamp 10 is fixedly connected to the bottom of the protective plate 206. When not connected to the wiring, the protective plate 206 is fixed to the front side of the outer casing 1 by the snap fastener 9 and the pipe clamp 10. Multiple friction strips 11 are fixedly connected to the top of the sliding plate 204. The multiple friction strips 11 are all rounded to increase the friction with the hand. Two grooves 12 are opened on the front side of the outer casing 1, and two sealing strips 13 are fixedly connected to the rear side of the protective plate 206 to prevent water from entering.

[0036] Specifically, a snap fastener 9 is provided on the bottom front side of the outer casing 1, and a pipe clamp 10 is fixed to the bottom of the protective plate 206. When no wiring is required, the snap fastener 9 and the pipe clamp 10 can be used to fix the protective plate 206 to the front side of the outer casing 1 for protection. Multiple smoothly designed friction strips 11 fixed on the top of the sliding plate 204 effectively increase the friction with the hand, making it easier to operate the sliding plate 204. The two grooves 12 opened on the front side of the outer casing 1 correspond to the two sealing strips 13 fixed on the rear side of the protective plate 206, which can effectively prevent moisture from entering the connector and ensure its stable performance.

[0037] Reference Figure 2 and Figure 3 Two support rods 14 are fixedly connected to the rear side of the fixed plate 202 to support the fixed plate 202. A connecting seat 15 is fixedly connected to the top of the fixed plate 202. A round hole 16 is opened on both the left and right sides of the inside of the connecting seat 15. A rotating rod 17 is rotatably connected inside the round hole 16. A fixing sleeve 18 is rotatably fixedly connected to the outer wall of the rotating rod 17. A hook 19 is fixedly connected to the top of the fixing sleeve 18. The hook 19 rotates on the outer wall of the rotating rod 17 through the fixing sleeve 18 and can hook the friction strip 11 on the rear side of the top of the sliding block 203 to prevent it from rebounding when released.

[0038] Specifically, two support rods 14 are fixed to the rear side of the fixing plate 202 to provide stable support for the fixing plate 202. A connecting seat 15 is connected to the top of the fixing plate 202. A round hole 16 is opened on each of the left and right sides inside the connecting seat 15. A rotating rod 17 is rotatably connected in the round hole 16. A fixing sleeve 18 is rotatably fixed on the outer wall of the rotating rod 17. A hook 19 is connected to the top of the fixing sleeve 18. When it is necessary to fix the sliding plate 204, the hook 19 can rotate on the outer wall of the rotating rod 17 through the fixing sleeve 18, thereby hooking the friction strip 11 on the rear side of the top of the sliding plate 204 to prevent the sliding plate 204 from rebounding due to loosening, and ensuring the smooth operation of the terminal 6 wiring operation.

[0039] Working principle: When the signal from the external device is transmitted through the connector 7, it first arrives at the terminal 6. As a key node for signal transmission, the terminal 6, with its good conductivity, efficiently transmits the signal to the connected line. During this process, the insulator 3 effectively prevents mutual interference between signals from different lines, ensuring that the signal is transmitted stably along the predetermined path, thereby achieving accurate and efficient signal transmission between the HDMI connector and the external device. During signal transmission, multiple anti-interference structures work together. The outer shell 1 is made of metal materials such as copper, aluminum or their alloys, forming an electromagnetic shielding space that isolates the internal circuit from external interference sources. The two metal braided meshes 4 on the front inside, with their good conductivity, can guide most of the external electromagnetic interference signals to the ground, while preventing internal signal leakage. The aluminum foil 5 inside the metal braided mesh 4 further enhances the shielding effect for low-frequency interference signals, blocking the interference signals outside the signal transmission path and ensuring that the signal is not interfered with during transmission. The guide grooves 8 on the upper and lower sides inside the outer shell 1 reduce signal interference caused by unstable connection.

[0040] Furthermore, the protective plate 206 is located on the front side of the outer casing 1, protecting the terminal 6 from external environmental influences. The operator manually applies force to the sliding plate 204, causing it to slide backward. The sliding plate 204 and the slide rail 201 are designed for a sliding connection, ensuring smooth and stable movement of the sliding plate 204 on the slide rail 201. As the sliding plate 204 moves backward, it contacts and applies pressure to the spring 203 on the front side of the fixed plate 202. Based on the elastic principle of the spring, the spring 203 deforms under pressure. During this process, the work done by the external force applied by the operator is converted into the elastic potential energy of the spring 203 and stored. The hinge 205 connected to the left and right ends of the front side of the sliding plate 204 rotates around its axis of rotation due to the displacement difference caused by the change in the position of the sliding plate 204, converting the linear motion of the sliding plate 204 into the linear motion of the protective plate 202. Driven by the rotation of hinge 205, the protective plate 206 is gradually pulled up from its original position against the front of the outer shell 1 until it moves to the top of the outer shell 1, exposing the terminal 6. This allows the operator to perform wiring operations without obstruction. After the wiring operation is completed, the operator no longer applies external force to the sliding plate 204. The spring 203, which stores elastic potential energy, begins to release energy. According to the law of conservation of energy, the elastic potential energy is converted into kinetic energy. The spring 203, by virtue of its tendency to return to its original length, applies a forward pushing force to the sliding plate 204, pushing the sliding plate 204 forward along the slide rail 201. The forward movement of the sliding plate 204 again acts on the protective plate 206 through hinge 205, causing the protective plate 206 to rotate in the opposite direction, returning to its initial position on the front of the outer shell 1, covering the terminal 6 again, and restoring the protective state of the terminal 6.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An interference-blocking HDMI electrical connector, comprising a housing (1), characterized in that: An insulator (3) is fixedly connected to the rear side of the inner shell (1). Two metal braided meshes (4) are fixedly connected to the front side of the inner shell (1). Aluminum foil (5) is fixedly connected inside each of the two metal braided meshes (4). A terminal (6) is fixedly connected to the front side of the inner shell (3). A connector (7) is fixedly connected to the rear side of the outer shell (1). Guide grooves (8) are provided on the upper and lower sides of the inner shell (1). A protective mechanism (2) is provided on the top of the outer shell (1). The protective mechanism (2) is used to protect the terminal (6).

2. The interference-blocking HDMI electrical connector according to claim 1, characterized in that: The protective mechanism (2) includes a slide rail (201), the bottom of which is fixedly connected to the top front side of the outer shell (1). A fixing plate (202) is fixedly connected to the rear side of the slide rail (201). Springs (203) are fixedly connected to the left and right ends of the front side of the fixing plate (202). A sliding plate (204) is slidably connected to the top front side of the slide rail (201). The front side of the spring (203) is fixedly connected to the rear side of the sliding plate (204). A hinge (205) is fixedly connected to the left and right ends of the front side of the sliding plate (204). A protective plate (206) is fixedly connected to the bottom rear side of the hinge (205).

3. The interference-blocking HDMI electrical connector according to claim 2, characterized in that: A snap fastener (9) is fixedly connected to the bottom front side of the outer shell (1), and a pipe clamp (10) is fixedly connected to the bottom of the protective plate (206).

4. The interference-blocking HDMI electrical connector according to claim 2, characterized in that: The top of the sliding plate (204) is fixedly connected with a plurality of friction strips (11), all of which are rounded.

5. The interference-blocking HDMI electrical connector according to claim 2, characterized in that: Two grooves (12) are provided on the front side of the outer shell (1), and two sealing strips (13) are fixedly connected to the rear side of the protective plate (206).

6. The interference-blocking HDMI electrical connector according to claim 2, characterized in that: Two support rods (14) are fixedly connected to the rear side of the fixing plate (202), and a connecting seat (15) is fixedly connected to the top of the fixing plate (202).

7. The interference-blocking HDMI electrical connector according to claim 6, characterized in that: The connecting seat (15) has round holes (16) on both the left and right sides inside, and a rotating rod (17) is rotatably connected inside the round holes (16).

8. The interference-blocking HDMI electrical connector according to claim 7, characterized in that: The outer wall of the rotating rod (17) is rotatably fixedly connected to a fixing sleeve (18), and the top of the fixing sleeve (18) is fixedly connected to a hook (19).

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