CN214589522U

CN214589522U - HDMI connection port

Info

Publication number: CN214589522U
Application number: CN202120144453.7U
Authority: CN
Inventors: 李秀东; 余曙光; 包乐荣
Original assignee: ZHEJIANG SONGCHENG ELECTRONICS CO LTD
Current assignee: ZHEJIANG SONGCHENG ELECTRONICS CO LTD
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-11-02
Anticipated expiration: 2031-01-19

Abstract

The application relates to an HDMI connection port, which comprises a plastic base, wherein an accommodating cavity is formed in the plastic base, and a pcb (printed circuit board) positioned on one side of the accommodating cavity is arranged on the plastic base; the pcb is electrically connected with a chip processor for reducing signal jitter, and the chip processor is positioned in the accommodating cavity; the pcb is electrically connected with an input end pin and an output end pin, and the input end pin and the output end pin are symmetrically arranged on two sides of the chip processor; the ends, deviating from each other, of the input end pin and the output end pin respectively extend out of the accommodating cavity, and the input end pin and the output end pin are fixedly arranged on the plastic base; and a metal shielding shell is fixedly sleeved on the outer side of the plastic base. The method and the device have the effects of improving the stability of the high-frequency signal and reducing the distortion rate of the signal.

Description

HDMI connection port

Technical Field

The present application relates to the field of connection ports, and in particular, to an HDMI connection port.

Background

At present, HDMI is called a high-definition multimedia interface, which is a fully digital video and audio transmission interface and can transmit uncompressed audio and video signals. The HDMI can be used for set-top boxes, DVD players, televisions, computers and other devices. HDMI is designed to replace older analog signal audio-visual transmission interfaces such as SCART or RCA terminals. It supports various television and computer video formats including SDTV, HDTV video pictures, plus multi-channel digital audio. The video contents of DVI, HDMI and UDI are transmitted in an instant and special line mode, so that the phenomenon of blockage can not occur when the video flow is large. HDMI can send audio frequency and video signal simultaneously, because audio frequency and video signal adopt same wire rod, simplifies the installation degree of difficulty of system's circuit greatly.

Chinese patent No. CN202772368U discloses an HDMI connector, which includes an HDMI socket having a shielding ring frame and two pairs of positioning pins; each pair of positioning pins is respectively connected with the HDMI socket and exposed at two sides of the shielding ring frame, wherein the distance between the two positioning pins at the same side is 6.3mm to 8.3 mm. The HDMI socket has a positioning pin with the specification of a display port, so that the HDMI socket can be inserted on a circuit board provided with a display port connecting part, and the convenience of assembly is further improved.

With respect to the related art in the above, the inventors consider that there are: when the HDMI connector transmits high-frequency signals, the pins are arranged densely, so that certain signal interference exists between the pins, or coupling effect between adjacent digital signals causes jitter or even distortion of the transmitted signals.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that signals are prone to jitter when an HDMI connector conducts high-frequency signal transmission, the application provides an HDMI connection port.

The application provides a HDMI connection port adopts following technical scheme:

an HDMI connection port comprises a plastic base, wherein an accommodating cavity is formed in the plastic base, and a pcb board located on one side of the accommodating cavity is arranged on the plastic base; the pcb is electrically connected with a chip processor for reducing signal jitter, and the chip processor is positioned in the accommodating cavity; the pcb is electrically connected with an input end pin and an output end pin, and the input end pin and the output end pin are symmetrically arranged on two sides of the chip processor; the ends, deviating from each other, of the input end pin and the output end pin respectively extend out of the accommodating cavity, and the input end pin and the output end pin are fixedly arranged on the plastic base; and a metal shielding shell is fixedly sleeved on the outer side of the plastic base.

By adopting the technical scheme, the chip processor can output 6Gbit/sec HDMI2.0 signals, support 60 frames per second 4:4:4 color pixel 4K resolution display, and simultaneously support 4K HDR10 image format; when a high-frequency signal is input from the input end pin, the input high-frequency signal can effectively reduce the jitter of the high-frequency signal through the processing of the chip processor, so that the output high-frequency signal is more stable; meanwhile, the adverse interference generated in the high-speed transmission process of the high-frequency signal can be reduced, so that the high-frequency signal finally output from the output end pin is more stable, and the distortion rate of the signal is greatly reduced; the chip processor is arranged in the accommodating cavity, so that the accommodating cavity can provide a relatively stable working environment for the chip processor, and the adverse effect of the external environment on the chip processor is reduced; and through the metal shielding shell who sets up in the plastic base outside, can shield external signal to the electromagnetic interference that produces in the signal transmission process of having reduced external signal to the high frequency signal.

Preferably, a bending section located on the plastic base is formed on the input end pin, and the bending section extends along the plugging direction of the port; adjacent the buckling sections are along the width direction of pcb board and are crisscross setting from top to bottom in proper order, are located with the row the buckling sections expose from the surface of plastic base respectively.

By adopting the technical scheme, the bending section not only increases the contact area between the bending section and the plastic base, but also can limit the whole pin of the input end when the HDMI connection port is plugged; the connecting part between the input end pin and the plastic base is not easy to bend or even break when being subjected to plugging and unplugging acting force; the connection strength between the input end pin and the plastic base is further enhanced, so that the service life of the whole HDMI connection port is prolonged; and the input end pins which are arranged in a staggered manner from top to bottom in sequence are adopted, so that the material cost is reduced, the processing steps are simplified, and meanwhile, the input end pins can be ensured to be smoothly conducted with the inserted plug.

Preferably, be provided with on the plastic base and hold the spacing chamber that the chamber is linked together, the pcb board inserts to spacing intracavity, just the pcb board is laminated with the lateral wall that spacing chamber is in opposite directions.

By adopting the technical scheme, when the pcb is installed, the pcb is inserted from the opening of the limiting cavity, and the limiting cavity can limit the pcb by attaching the pcb to the side wall of the limiting cavity, so that the pcb can be more stably fixed on one side of the plastic base; and spacing chamber can also provide a relatively stable operational environment for the pcb board, has improved the stability of pcb board during operation.

Preferably, fool-proof inserting columns are integrally formed on the side wall of the limiting cavity, the fool-proof inserting columns are respectively located on two sides of the accommodating cavity, and the fool-proof inserting columns are asymmetrically arranged; the foolproof inserting column extends along the direction that the pcb is inserted into the limiting cavity; the pcb is provided with jacks corresponding to the fool-proof inserting columns one by one, the fool-proof inserting columns are respectively inserted into the respective opposite jacks, and the fool-proof inserting columns are tightly abutted to the inner side walls of the jacks.

By adopting the technical scheme, when the pcb is installed, the fool-proof function can be realized on the installation of the pcb through the fool-proof inserting columns which are asymmetrically arranged, so that the situation that the position of the pcb is wrongly installed can be prevented, and the installation efficiency of the pcb is further improved; when will prevent slow-witted the post of inserting and insert the jack that corresponds on the pcb board in, prevent slow-witted the post of inserting and will support tightly each other with the jack inside wall to stability when can further improving the pcb board installation makes the pcb board be difficult for breaking away from spacing intracavity.

Preferably, a socket is formed at one end of the metal shielding shell, and the input terminal pin is located in the socket; the limiting sections are symmetrically arranged on two sides of the input end pin; one end of the limiting section is connected with the inner side wall of the socket along the vertical direction, the other end of the limiting section is connected with the inner side wall of the socket along the horizontal direction, and the limiting section is obliquely arranged; the metal shielding shell is also provided with an installation port communicated with the jack, and the plastic base is inserted into the metal shielding shell through the installation port; one end of the limiting section is abutted against one side of the plastic base.

By adopting the technical scheme, when the metal shielding shell is installed, the pin of the output end on the plastic base faces the installation opening on the metal shielding shell, and then one end of the plastic base is inserted into the metal shielding shell through the installation opening; when one end of the plastic base is contacted with the limiting section, the maximum insertion range of the plastic base can be limited under the action of the limiting section, so that excessive insertion of the plastic base can be prevented; meanwhile, the plastic base is also installed in place, and the plastic base can be stably limited in the metal shielding shell through mutual interference between the outer side wall of the plastic base and the inner side wall of the metal shielding shell.

Preferably, the metal shielding shell is bent to form a fixing section positioned on one side of the mounting opening, and the plastic base is provided with an embedded groove close to the adjacent fixing section; the fixing sections are bent towards the adjacent caulking grooves and are mutually pressed with the side walls of the caulking grooves.

By adopting the technical scheme, after the plastic base is installed in the metal shielding shell, the fixing section is bent towards the direction close to the adjacent caulking groove, the side walls of the fixing section and the caulking groove are mutually pressed, and the plastic base can be locked under the action of the fixing section, so that the situation that the plastic base is separated from the installation opening due to looseness of the plastic base in the long-time plugging and unplugging process of the plug can be prevented; the anti-falling effect is achieved for the plastic base, and the firmness of the plastic base is improved.

Preferably, be provided with the slot that is located canned paragraph one side on the metal shielding shell, be provided with the inserted block relative with the slot on the plastic base, the inserted block inserts to the slot in, just the inserted block is inconsistent with the slot inside wall.

By adopting the technical scheme, when the plastic base is inserted into the metal shielding shell, the insertion block and the slot are required to be opposite to each other so that the plastic base can be smoothly inserted, and the foolproof effect can be achieved on the installation of the plastic base through the arrangement of the insertion block and the slot; and through the mutual conflict between inserted block and the inboard lateral wall of slot, can further improve the firm nature after the plastic base installation finishes.

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

1. when a high-frequency signal is input from the input end pin, the input high-frequency signal can effectively reduce the jitter of the high-frequency signal through the processing of the chip processor, so that the output high-frequency signal is more stable; meanwhile, the adverse interference generated in the high-speed transmission process of the high-frequency signal can be reduced, so that the high-frequency signal finally output from the output end pin is more stable, and the distortion rate of the signal is greatly reduced;

2. the input end pins which are distributed in a staggered manner from top to bottom in sequence are adopted, so that the material cost is reduced, the processing steps are simplified, and meanwhile, the input end pins can be ensured to be smoothly conducted with the inserted plug;

3. prevent through being asymmetric setting prevent slow-witted post of inserting can play the effect of preventing staying to the installation of pcb board to can prevent the position installation mistake's of pcb board the condition emergence, further improve the installation effectiveness of pcb board.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is an exploded view of the partial structure of fig. 1.

FIG. 3 is a schematic view of the overall structure of FIG. 1 where the pcb is highlighted

Fig. 4 is an exploded view of the partial structure of fig. 3.

Fig. 5 is a schematic view of the overall structure of the primary tape during processing.

Fig. 6 is a partial schematic view of the highlighted bend in fig. 5.

Description of reference numerals: 1. a plastic base; 11. an accommodating chamber; 12. a limiting cavity; 13. caulking grooves; 14. a foolproof insert column; 15. inserting a block; 2. a pcb board; 21. an input terminal pin; 22. an output terminal pin; 23. bending the section; 24. a jack; 3. a chip processor; 4. a metal shielding can; 41. a socket; 42. a limiting section; 43. an installation port; 44. a fixed section; 45. a slot; 5. a primary tape.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses an HDMI connection port. Referring to fig. 1 and 2, the HDMI connection port includes a plastic base 1 integrally formed of a plastic material, a pcb board 2 is mounted on the plastic base 1, and a chip processor 3 for reducing signal jitter is electrically connected to the pcb board 2. In this embodiment, the chip processor 3 is an IC chip, and the model thereof may be PS8421, the chip processor 3 may output HDMI2.0 signals at 6Gbit/sec, and support 60 frames per second 4:4:4 color pixels with 4K resolution for display, and the chip processor 3 may also support 4K HDR10 image format. When a high-frequency signal is input, the input high-frequency signal can be processed by the chip processor 3 to effectively reduce the jitter of the high-frequency signal, so that the output high-frequency signal is more stable. The outer side of the plastic base 1 is fixedly sleeved with a metal shielding shell 4 for shielding external interference signals.

As shown in fig. 2 and 3, the plastic base 1 is provided with a containing cavity 11 which is provided with an opening and is vertically communicated, the bottom of the plastic base 1 is further provided with a limiting cavity 12 communicated with the containing cavity 11, the pcb board 2 is inserted into one side of the plastic base 1 through the limiting cavity 12, and the pcb board 2 is attached to the side wall of the limiting cavity 12 opposite to the limiting cavity 12. Spacing chamber 12 has two to prevent slow-witted post 14 of inserting towards integrated into one piece on the lateral wall of pcb board 2, prevents slow-witted post 14 of inserting and is located the both sides that hold chamber 11 respectively, and two prevent slow-witted post 14 of inserting and be asymmetric setting. Prevent slow-witted post 14 of inserting extends to the direction in the spacing chamber 12 along pcb board 2, and prevents slow-witted length of inserting post 14 and be greater than pcb board 2's thickness. Two jacks 24 corresponding to the positions of the fool-proof insertion posts 14 one by one are arranged on the pcb 2 in a penetrating way, and the fool-proof insertion posts 14 are respectively inserted into the respective opposite jacks 24. Prevent slow-witted lateral wall of inserting post 14 and the inside wall of jack 24 and support tightly each other, under the grafting effect of preventing slow-witted post 14 of inserting and jack 24, realized preliminary fixed to pcb board 2.

As shown in fig. 2 and 4, after the pcb 2 is mounted on the plastic base 1, the chip handler 3 disposed on the pcb 2 is inserted into the accommodating cavity 11. Input pin 21 and output pin 22 are welded and fixed on pcb board 2, and input pin 21 and output pin 22 are the symmetry and set up both sides around chip processor 3, and input pin 21 and the output pin 22 that are located chip processor 3 homonymy are along pcb board 2's width direction and are evenly interval arrangement in proper order. One end of the input pin 21, which is far away from the output pin 22, penetrates out of the accommodating cavity 11, and one end of the input pin 21, which is far away from the chip processor 3, of the output pin 22 is inserted into the plastic base 1 and is fixedly arranged on the plastic base 1.

As shown in fig. 2 and 5, the input terminal pin 21 that penetrates out of the accommodating cavity 11 is bent to form a bent section 23 located in the plastic base 1, and the bent section 23 extends along the insertion and extraction direction of the port.

As shown in fig. 2 and 6, the adjacent bending sections 23 are sequentially arranged in a staggered manner from top to bottom along the width direction of the pcb 2, and an upper row of pins and a lower row of pins are formed in a staggered manner. The side wall of the upper row of pins deviating from the lower row of pins is exposed out of the upper surface of the plastic base 1, and the side wall of the lower row of pins deviating from the upper row of pins is exposed out of the lower surface of the plastic base 1.

As shown in fig. 3 and 4, a socket 41 is formed at the front end of the metal shield case 4 disposed outside the plastic base 1, and the input terminal pin 21 extends into the socket 41. The socket 41 is used for smoothly inserting an external plug into the metal shielding shell 4 and successfully realizing signal transmission with the input terminal pin 21. Two sets of limiting sections 42 are integrally formed on the inner side wall of the socket 41, and the limiting sections 42 are symmetrically arranged on two sides of the input end pin 21. The quantity of spacing section 42 of every group is two, and is located two spacing sections 42 of input pin 21 homonymy and is the interval setting along the length direction of pcb board 2. Spacing section 42 is the slope setting, and spacing section 42 upper end and socket 41 are along the inside wall integrated into one piece of vertical direction, and spacing section 42 lower extreme and socket 41 are along the inside wall integrated into one piece of horizontal direction.

As shown in fig. 3 and 4, a mounting opening 43 communicating with the insertion opening 41 is formed at the rear end of the metal shield case 4, and the plastic base 1 is inserted into the mounting opening 43 from the rear end of the metal shield case 4. The metal shielding shell 4 is bent to form a fixing section 44 located at the installation opening 43, and the fixing sections 44 are symmetrically arranged on two sides of the installation opening 43. The side wall of the plastic base 1 close to the adjacent fixing section 44 is provided with an embedded groove 13 for embedding the fixing section 44, after the fixing section 44 is bent for 90 degrees towards the direction close to the adjacent embedded groove 13, the fixing section 44 and the side wall of the embedded groove 13 are mutually pressed, and the plastic base 1 can be locked in the metal shielding shell 4 under the action of the fixing section 44. At this time, the limiting section 42 close to one side of the plastic base 1 is tightly abutted against the plastic base 1.

As shown in fig. 3 and 4, the metal shielding shell 4 is further provided with slots 45 near the fixing section 44, the slots 45 are symmetrically disposed on two sides of the mounting opening 43, and the slots 45 are communicated with the mounting opening 43. One side opening of the slot 45 faces the direction in which the plastic base 1 is inserted into the metal shielding shell 4, the plastic base 1 is integrally formed with an insertion block 15 opposite to the slot 45, and the insertion blocks 15 are respectively close to the adjacent insertion grooves 13. When the plastic base 1 is inserted from the mounting opening 43, the insertion blocks 15 are inserted into the respective opposite slots 45, and the insertion blocks 15 are abutted against the inner side walls of the slots 45.

The implementation principle of an HDMI connection port in the embodiment of the present application is as follows: when a high-frequency signal is input from the input terminal pin 21, the input high-frequency signal is processed by the chip processor 3, so that the jitter of the high-frequency signal can be effectively reduced, and the output high-frequency signal is more stable. Meanwhile, the adverse interference generated in the high-speed transmission process of the high-frequency signal can be reduced, so that the high-frequency signal output from the output end pin 22 is more stable, and the distortion rate of the signal is greatly reduced. And through setting up chip processor 3 in holding chamber 11, hold chamber 11 and can provide a relatively stable operational environment for chip processor 3, reduced the harmful effects that external environment produced chip processor. And through the metal shielding shell 4 that sets up in the plastic base 1 outside, can shield external signal to the electromagnetic interference that produces in the signal transmission process of having reduced external signal to the high frequency is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An HDMI connection port, comprising: the plastic base comprises a plastic base (1), wherein an accommodating cavity (11) is formed in the plastic base (1), and a pcb (2) positioned on one side of the accommodating cavity (11) is arranged on the plastic base (1); the pcb (2) is electrically connected with a chip processor (3) for reducing signal jitter, and the chip processor (3) is positioned in the accommodating cavity (11); the pcb (2) is electrically connected with an input end pin (21) and an output end pin (22), and the input end pin (21) and the output end pin (22) are symmetrically arranged on two sides of the chip processor (3); one ends of the input end pins (21) and the output end pins (22) which are deviated from each other respectively extend out of the accommodating cavity (11), and the input end pins (21) and the output end pins (22) are fixedly arranged on the plastic base (1); the outer side of the plastic base (1) is fixedly sleeved with a metal shielding shell (4).

2. An HDMI connection port according to claim 1, wherein: a bending section (23) positioned on the plastic base (1) is formed on the input end pin (21), and the bending section (23) extends along the plugging direction of the port; adjacent bend section (23) are along the width direction of pcb board (2) and are crisscross the setting from top to bottom in proper order, are located with the row bend section (23) expose from the surface of plastic base (1) respectively.

3. An HDMI connection port according to claim 2, wherein: be provided with on plastic base (1) and hold spacing chamber (12) that chamber (11) are linked together, pcb board (2) insert to spacing chamber (12) in, just pcb board (2) and spacing chamber (12) lateral wall laminating in opposite directions.

4. An HDMI connection port according to claim 3, wherein: the side wall of the limiting cavity (12) is integrally formed with fool-proof inserting columns (14), the fool-proof inserting columns (14) are respectively located on two sides of the accommodating cavity (11), and the fool-proof inserting columns (14) are arranged asymmetrically; the foolproof inserting column (14) extends along the direction that the pcb (2) is inserted into the limiting cavity (12); the pcb (2) is provided with jacks (24) corresponding to the fool-proof inserting columns (14) one by one, the fool-proof inserting columns (14) are respectively inserted into the respective opposite jacks (24), and the fool-proof inserting columns (14) are tightly abutted to the inner side walls of the jacks (24).

5. An HDMI connection port according to claim 1, wherein: a socket (41) is formed at one end of the metal shielding shell (4), and the input end pin (21) is positioned in the socket (41); the limiting sections (42) are integrally formed on the inner side wall of the socket (41), and the limiting sections (42) are symmetrically arranged on two sides of the input end pin (21); one end of the limiting section (42) is connected with the inner side wall of the socket (41) along the vertical direction, the other end of the limiting section (42) is connected with the inner side wall of the socket (41) along the horizontal direction, and the limiting section (42) is obliquely arranged; the metal shielding shell (4) is also provided with an installation opening (43) communicated with the socket (41), and the plastic base (1) is inserted into the metal shielding shell (4) through the installation opening (43); one end of the limiting section (42) is abutted against one side of the plastic base (1).

6. An HDMI connection port according to claim 5, wherein: a fixing section (44) positioned on one side of the mounting opening (43) is formed on the metal shielding shell (4) in a bending mode, and an embedded groove (13) close to the adjacent fixing section (44) is formed in the plastic base (1); the fixing sections (44) are bent towards the adjacent caulking grooves (13) and are mutually pressed with the side walls of the caulking grooves (13).

7. An HDMI connection port according to claim 6, wherein: be provided with slot (45) that are located canned paragraph (44) one side on metal shield shell (4), be provided with on plastic base (1) and insert piece (15) relative with slot (45), insert piece (15) insert to slot (45) in, just insert piece (15) and slot (45) inside wall are inconsistent.