CN109149300B

CN109149300B - HDMI connector

Info

Publication number: CN109149300B
Application number: CN201810984975.0A
Authority: CN
Inventors: 李小华; 黄建中; 曾庆瑞
Original assignee: ANFU YEXIANG PRECISION ELECTRONIC Co Ltd
Current assignee: ANFU YEXIANG PRECISION ELECTRONIC Co Ltd
Priority date: 2018-08-28
Filing date: 2018-08-28
Publication date: 2020-02-07
Anticipated expiration: 2038-08-28
Also published as: CN109149300A

Abstract

The invention discloses an HDMI connector, and relates to the technical field of digital video/audio interfaces. The device comprises a shell, a driving rotating shaft, a driving chain wheel, a driven rotating shaft, a first cam, a second cam, a transmission chain, a first joint, a second joint and a cable; the two joints can be in different working states under different rotation angles by arranging the cams with different initial angles; in order to ensure that the joint cannot be retracted in a non-return way due to stress, a clutch system is arranged, when the working position of the first joint or the second joint needs to be changed, the driving rotating shaft is pulled out, the clutch male seat is separated from the clutch female seat, and the driving rotating shaft can be rotated to change the position of the joint; after the position is determined, the driving rotating shaft is inserted back, the clutch male seat is contacted with the clutch female seat, the clutch male seat and the clutch female seat are matched through the latch and the clamping groove, the clutch female seat prevents the clutch male seat from rotating, and even if the connector is stressed, the clutch male seat cannot rotate reversely; the invention overcomes the defect that the existing HDMI connector can not be adapted to various interfaces.

Description

HDMI connector

Technical Field

The invention relates to the technical field of digital video/audio interfaces, in particular to an HDMI connector.

Background

The technology of digitized video/audio needs to be transmitted to an output device for output through a series of signal conversion so as to be received by the naked eye or the ear;

compared with the traditional DVI interface, the HDMI can not only meet the 1080P resolution, but also support digital Audio formats such as DVD Audio and the like, support eight-channel 96kHz or stereo 192kHz digital Audio transmission, and transmit uncompressed Audio signals and video signals. HDMI can be used in set-top boxes, DVD players, personal computers, video players, integrated amplifiers, digital stereos and televisions. HDMI can transmit audio and video signals simultaneously.

The HDMI supports EDID and DDC2B, so that the HDMI-capable device has a "plug and play" feature, and the signal source and the display device automatically perform "negotiation" and automatically select the most appropriate video/audio format.

However, there are various types of HDMI interfaces available, and the HDMI connector available is generally applicable to only a single type of interface.

Disclosure of Invention

The invention provides an HDMI connector, which is used for overcoming the defect that the existing HDMI connector cannot be adapted to various interfaces.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the HDMI connector comprises a shell, a driving rotating shaft, a driving chain wheel, a driven rotating shaft, a first cam, a second cam, a transmission chain, a first joint, a second joint and a cable;

the shell comprises a binding post, a spring mounting seat, a supporting plate, a clutch female seat and a shaft seat; the left shell plate of the shell is symmetrically provided with two joint openings, the number of the spring mounting seats is four, two spring mounting seats are fixedly connected to the inner wall of the left shell plate of the shell in one group, and the two spring mounting seats in each group are symmetrically arranged on the front side and the rear side of each joint opening by taking the joint openings as centers;

the two binding posts are fixedly connected to the inner wall of the lower shell plate of the shell, and the binding posts are close to the joint openings;

a cable opening is formed in the center of the right shell plate of the shell;

a rotating shaft opening is formed in the middle of an upper shell plate of the shell close to the right, the bearing plate is fixedly connected inside the shell and arranged below the rotating shaft opening, a through hole is formed in the center of the bearing plate, the clutch female seat is fixedly connected to the inner wall of a lower shell plate of the shell, and the clutch female seat is coaxial with the rotating shaft opening; tooth grooves are formed in the upper half part of the clutch female seat at intervals of 90 degrees;

the clutch device comprises a shell, a clutch female seat, a clutch shaft seat and a clutch shaft seat, wherein the clutch female seat comprises a clutch female seat and two shaft seats;

the driving rotating shaft comprises a knob fixedly connected at the upper end, a clutch male seat fixedly connected at the lower end and a section of bulge fixedly connected on a bus of the driving rotating shaft; the driving rotating shaft penetrates through the rotating shaft opening and is inserted into the shell, the middle part of the driving rotating shaft penetrates through the supporting plate, and the lower half part of the clutch male seat is provided with clamping teeth at intervals of 90 degrees; the lower end of the driving rotating shaft is installed in a matched mode through the clutch male seat and the clutch female seat;

a groove is arranged on the shaft hole of the driving chain wheel, the driving chain wheel is matched with the bulge of the driving rotating shaft through the groove and is arranged on the driving shaft hole, and the driving chain wheel is positioned on the supporting plate;

two driven rotating shafts are arranged and are respectively arranged on the two groups of shaft seats;

the first cam and the second cam are respectively arranged on the two driven rotating shafts, and the position close to the dead center of the first cam is 180 degrees apart from the position close to the dead center of the second cam; the first cam and the second cam respectively comprise driven chain wheels fixedly connected to the cams, the driven chain wheels and the driving chain wheel are positioned on the same plane, and the driving chain wheel is connected with the two driven chain wheels through the transmission chain;

the first joint and the second joint are respectively arranged on the joint openings, the first joint comprises a transmission plate, a spring and a terminal, the transmission plate is fixedly connected to one end, extending into the shell, of the first joint, and the left end face of the transmission plate is connected to the spring mounting seat through the two springs; the right end of the transmission plate is in contact with the side face of the first cam, the terminal is fixedly connected to the lower right of the first joint, and the terminal is located on the right of the binding post; the first joint and the second joint are consistent in structure and installation mode.

The cable enters the shell through the cable opening, and a lead of the cable is divided into two strands which are respectively and electrically connected with the two binding posts.

As the further improvement of this technical scheme, first joint connects for HDMI Type-A connects, the second connects for HDMI Type-B connects or HDMI Type-C connects.

As a further improvement of the technical scheme, the outer surface of the shell is coated with an insulating film.

As a further improvement of the technical scheme, a bearing is further arranged between the driving rotating shaft and the rotating shaft opening.

As a further improvement of the present technical solution, the length of the protrusion is greater than the length of the groove.

As a further improvement of the technical scheme, the latch is obliquely arranged, and the latch is obliquely inclined at an acute angle from the root to the top.

As a further improvement of the technical scheme, the inclination angle of the latch is 1-5 degrees.

As a further improvement of the present technical solution, the cross section of the upper half portion of the terminal post is trapezoidal, and the cross section of the lower half portion of the terminal post is trapezoidal.

As a further improvement of the technical scheme, a plurality of anti-skidding grooves are formed in the outer surface of the knob.

As a further improvement of the technical scheme, a buffer backing plate is further arranged among the first cam, the second cam and the transmission plate.

Among this technical scheme, through having set up the different cam of initial angle for two joints can be in different operating condition under the rotation angle of difference, and first joint and second joint total three kinds of different operating condition:

1. the first joint is extended, and the second joint is retracted;

2. the first joint retracts, and the second joint extends;

3. the first and second connectors are retracted.

In addition, in order to ensure that the joint cannot be retracted in a non-return manner due to stress, a clutch system is arranged, when the working position of the first joint or the working position of the second joint needs to be changed, the driving rotating shaft is pulled out, the clutch male seat is separated from the clutch female seat, and the driving rotating shaft can be rotated to change the position of the joint; after the position is determined, the active rotating shaft is inserted back, the clutch male seat is in contact with the clutch female seat, the clutch male seat and the clutch female seat are matched through the clamping teeth and the clamping grooves, the clutch female seat prevents the clutch male seat from rotating, and the clutch male seat cannot be reversed even if the connector is stressed.

Compared with the prior art: the invention overcomes the defect that the existing HDMI connector can not be adapted to various interfaces.

Drawings

Fig. 1 is an internal structural view of an HDMI connector according to an embodiment of the present invention;

fig. 2 is a view of an HDMI connector according to an embodiment of the present invention;

fig. 3 is a B-B view of an HDMI connector according to an embodiment of the present invention;

FIG. 4 is a schematic view of a male clutch seat and a female clutch seat of a rotating shaft according to an embodiment of the present invention;

fig. 5 is an internal schematic view of an HDMI connector according to an embodiment of the present invention when a rotating shaft is pulled out;

fig. 6 is a B-B view of the HDMI connector according to the embodiment of the present invention when the shaft is pulled out.

In the figure, 1-shell, 2-driving rotating shaft, 3-driving chain wheel, 4-driven chain wheel, 5-first protrusion, 6-second protrusion, 7-driving chain, 8-first joint, 9-second joint, 10-cable, 11-joint opening, 12-binding post, 13-spring installation, 14-cable opening, 15-rotating shaft opening, 16-clutch female seat, 17-shaft seat, 21-knob, 22-protrusion, 23-clutch work, 31-groove, 51-driven chain wheel, 81-driving plate, 82-spring, 83-terminal, 101-lead, 151-bearing, 161-draft and 231-latch.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

An HDMI connector is provided, as shown in fig. 1 to 4, including a housing 1, a driving shaft 2, a driving sprocket 3, a driven shaft 4, a first cam 5, a second cam 6, a transmission chain 7, a first joint 8, a second joint 9, and a cable 10;

the shell 1 comprises a binding post 12, a spring mounting seat 13, a supporting plate 18, a clutch female seat 16 and a shaft seat 17; the left shell plate of the shell 1 is symmetrically provided with two joint openings 11, the number of the spring mounting seats 13 is four, two spring mounting seats are fixedly connected to the inner wall of the left shell plate of the shell 1 in one group, and the two spring mounting seats 13 in each group are symmetrically arranged on the front side and the rear side of each joint opening 11 by taking the joint openings 11 as centers;

two binding posts 12 are fixedly connected to the inner wall of the lower shell plate of the shell 1, and the binding posts 12 are close to the joint opening 11;

a cable opening 14 is formed in the center of the right shell plate of the shell 1;

a rotating shaft opening 15 is formed in the middle of an upper shell plate of the shell 1 close to the right, the bearing plate 18 is fixedly connected inside the shell 1 and below the rotating shaft opening 15, a through hole is formed in the center of the bearing plate 15, the clutch female seat 16 is fixedly connected to the inner wall of a lower shell plate of the shell 1, and the clutch female seat 16 is coaxial with the rotating shaft opening 15; the upper half part of the clutch female base 16 is provided with tooth grooves 161 at intervals of 90 degrees;

the number of the shaft seats 17 is four, each two shaft seats are a group, two shaft seats 17 in each group are fixedly connected with the upper inner wall and the lower inner wall of the shell 1 respectively, and the two groups of shaft seats 17 are symmetrically arranged in front of and behind the clutch female seat 16 by taking the clutch female seat 16 as a center;

the driving rotating shaft 2 comprises a knob 21 fixedly connected at the upper end, a clutch male seat 23 fixedly connected at the lower end and a section of bulge 22 fixedly connected on a bus of the driving rotating shaft 2; the driving rotating shaft 2 penetrates through the rotating shaft opening 15 and is inserted into the shell 1, the middle part of the driving rotating shaft 2 penetrates through the supporting plate 18, and the lower half part of the clutch male seat 23 is provided with clamping teeth 231 at intervals of 90 degrees; as shown in fig. 4, the lower end of the driving shaft 2 is installed in cooperation with the clutch female socket 16 through the clutch male socket 23;

a groove 31 is arranged on the shaft hole of the driving sprocket 3, the driving sprocket 3 is matched with the protrusion 22 of the driving rotating shaft 2 through the groove 31 and is installed on the driving shaft hole 2, and the driving sprocket 3 is positioned on the supporting plate 18;

two driven rotating shafts 4 are respectively arranged on the two groups of shaft seats 17;

the first cam 5 and the second cam 6 are respectively installed on the two driven rotating shafts 4, and the position close to the dead point of the first cam 5 is 180 degrees apart from the position close to the dead point of the second cam 6; the first cam 5 and the second cam 6 both comprise driven chain wheels 51 fixedly connected to the cams, the driven chain wheels 51 and the driving chain wheel 3 are located on the same plane, and the driving chain wheel 3 is connected with the two driven chain wheels 51 through the transmission chain 7;

the first joint 8 and the second joint 9 are respectively installed on the joint opening 11, the first joint 8 includes a transmission plate 81, a spring 82 and a terminal 83, the transmission plate 81 is fixedly connected to one end of the first joint 8 extending into the housing 1, and a left end surface of the transmission plate 81 is connected to the spring installation seat 13 through the two springs 82; the right end of the driving plate 81 is in contact with the side surface of the first cam 5, the terminal 83 is fixedly connected to the lower right of the first joint 8, and the terminal 83 is positioned on the right of the binding post 12; the first joint 8 and the second joint 9 are identical in structure and installation mode.

The cable 10 enters the housing 1 through the cable opening 14, and the conducting wire 101 of the cable 10 is divided into two branches to be electrically connected with the two binding posts 12 respectively.

In a specific embodiment, as shown in fig. 1, 2 and 3, the terminal 83 of the first connector 8 is in contact with the post 12, so that the internal circuit is communicated; at this time, the clutch male seat 23 is inserted into the clutch female seat 16, so that the driving rotating shaft 2 cannot rotate, the first connector 8 can be inserted into an external interface, and the first connector 8 cannot return to the inside of the shell 1 even if external force is received due to the clutch being in a closed state;

when the working position of the first joint 8 or the second joint 9 needs to be changed, as shown in fig. 5 and fig. 6, the driving rotating shaft 2 is pulled out, the clutch male seat 23 is separated from the clutch female seat 16, and at this time, the driving rotating shaft 2 can be rotated by integral multiple of 90 degrees, so as to change the position of the joint;

in the initial position, the first connector 8 is extended, and the second connector 9 is retracted;

after rotating 90 degrees anticlockwise, the first joint 8 retracts, and the second joint 9 retracts;

after the anticlockwise rotation is continued for 90 degrees, the first joint 8 retracts, and the second joint 9 extends out;

after the anticlockwise rotation is continued for 90 degrees, the first joint 8 retracts, and the second joint 9 retracts;

and returning to the initial position after continuing to rotate counterclockwise by 90 degrees.

Further, first joint 8 is HDMI Type-A connects, and second joint 9 is HDMI Type-B connects or HDMI Type-C connects.

The HDMI Type-A connector is commonly used in the market, and the HDMI Type-B connector or the HDMI Type-C connector is commonly used in addition; so set up first joint 8 and connect for HDMI Type-A, second joint 9 is that HDMI Type-B connects or HDMI Type-C connects.

Further, the outer surface of the case 1 is coated with an insulating film.

In order to prevent the leakage of electricity when the HDMI connector is used, the outer surface of the housing 1 is covered with an insulating film.

Further, a bearing 151 is installed between the driving shaft 2 and the shaft opening 15.

A bearing 151 is disposed between the driving shaft 2 and the shaft opening 15, so that the driving shaft 2 rotates more stably.

Further, the length of the protrusion 22 is greater than the length of the groove 31.

Because the active spindle 2 needs to be pulled out, the length of the projection 22 is set to the length of the pomfret groove 31, so that when the active spindle 2 is pulled out by a certain distance, the contact surface of the groove 31 can contact the projection 22.

Further, the latch 231 is disposed in an inclined manner, and the latch 231 is inclined at an acute angle from the root to the top.

The clutch operation 23 is to make the insertion easier by obliquely disposing the latch 231 when inserting the clutch female 16.

Further, the latch 231 is inclined at an angle of 1 ° to 5 °.

In order that the latch 231 can be easily inserted into the slot 161 and the rotation of the driving shaft 2 can be effectively restricted after the clutch is closed, the latch 231 is inclined at an angle of 1 to 5.

Further, the upper half of the post 12 has a trapezoidal cross section, and the lower half of the terminal 83 has a trapezoidal cross section.

In order to increase the contact area as much as possible and ensure the stability of electrical transmission when the terminal 83 is mated with the post 12, the cross section of the upper half of the post 12 is trapezoidal, and the cross section of the lower half of the terminal 83 is trapezoidal.

Further, the outer surface of the knob 21 is provided with a plurality of anti-slip grooves.

In order to prevent the knob from slipping during manual rotation selection, a plurality of anti-slip grooves are arranged on the outer surface of the knob 21.

Further, a buffer backing plate is arranged between the first cam 5, the second cam 6 and the transmission plate 81.

Since the driving plate 81 directly contacts the cam to move, when the rotation is too fast, the impulse received by the driving plate 81 is relatively large, and thus a cushion plate is provided between the cam and the driving plate 81.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims

1. An HDMI connector, comprising: the device comprises a shell (1), a driving rotating shaft (2), a driving chain wheel (3), a driven rotating shaft (4), a first cam (5), a second cam (6), a transmission chain (7), a first joint (8), a second joint (9) and a cable (10);

the shell (1) comprises a binding post (12), a spring mounting seat (13), a supporting plate (18), a clutch female seat (16) and a shaft seat (17); the left shell plate of the shell (1) is symmetrically provided with two joint openings (11), the number of the spring mounting seats (13) is four, the two spring mounting seats are fixedly connected to the inner wall of the left shell plate of the shell (1) in one group, and the spring mounting seats (13) of each group are symmetrically arranged on the front side and the rear side of each joint opening (11) by taking the joint openings (11) as centers;

two binding posts (12) are fixedly connected to the inner wall of the lower shell plate of the shell (1), and the binding posts (12) are close to the joint openings (11);

a cable opening (14) is formed in the center of the right shell plate of the shell (1);

a rotating shaft opening (15) is formed in the middle of an upper shell plate of the shell (1) close to the right, the bearing plate (18) is fixedly connected inside the shell (1) and arranged below the rotating shaft opening (15), a through hole is formed in the center of the bearing plate (18), the clutch female seat (16) is fixedly connected to the inner wall of a lower shell plate of the shell (1), and the clutch female seat (16) is coaxial with the rotating shaft opening (15); the upper half part of the clutch female seat (16) is provided with tooth grooves (161) at intervals of 90 degrees;

the clutch mechanism is characterized in that the number of the shaft seats (17) is four, each two shaft seats are in a group, two shaft seats in each group are fixedly connected with the upper inner wall and the lower inner wall of the shell (1) respectively at the upper part and the lower part, and the two groups of shaft seats (17) are symmetrically arranged in front of and behind the clutch female seat (16) by taking the clutch female seat (16) as a center;

the driving rotating shaft (2) comprises a knob (21) fixedly connected at the upper end, a clutch male seat (23) fixedly connected at the lower end and a section of bulge (22) fixedly connected on a bus of the driving rotating shaft (2); the driving rotating shaft (2) penetrates through the rotating shaft opening (15) and is inserted into the shell (1), the middle part of the driving rotating shaft (2) penetrates through the supporting plate (18), and the lower half part of the clutch male seat (23) is provided with clamping teeth (231) at intervals of 90 degrees; the lower end of the driving rotating shaft (2) is matched and installed with the clutch female seat (16) through the clutch male seat (23);

a groove (31) is formed in the shaft hole of the driving chain wheel (3), the driving chain wheel (3) is installed on the driving rotating shaft (2) through the groove (31) and the protrusion (22) of the driving rotating shaft (2) in a matched mode, and the driving chain wheel (3) is located on the supporting plate (18);

two driven rotating shafts (4) are respectively arranged on the two groups of shaft seats (17);

the first cam (5) and the second cam (6) are respectively arranged on the two driven rotating shafts (4), and the position close to the dead center of the first cam (5) is 180 degrees away from the position close to the dead center of the second cam (6); the first cam (5) and the second cam (6) comprise driven chain wheels (51) fixedly connected to the cams, the driven chain wheels (51) and the driving chain wheel (3) are located on the same plane, and the driving chain wheel (3) is connected with the two driven chain wheels (51) through the transmission chain (7);

the first joint (8) and the second joint (9) are respectively installed on the joint opening (11), the first joint (8) comprises a transmission plate (81), a spring (82) and a terminal (83), the transmission plate (81) is fixedly connected to one end, extending into the shell (1), of the first joint (8), and the left end face of the transmission plate (81) is connected to the spring installation seat (13) through the two springs (82); the right end of the transmission plate (81) is in contact with the side face of the first cam (5), the terminal (83) is fixedly connected to the lower right of the first joint (8), and the terminal (83) is positioned on the right of the binding post (12); the first joint (8) and the second joint (9) are consistent in structure and installation mode;

the cable (10) enters the shell (1) through the cable opening (14), and a lead (101) of the cable (10) is divided into two strands which are respectively and electrically connected with the two binding posts (12).

2. An HDMI connector according to claim 1, wherein: first joint (8) are HDMIType-A and connect, second joint (9) are HDMI Type-B and connect or HDMI Type-C and connect.

3. An HDMI connector according to claim 1, wherein: the outer surface of the shell (1) is coated with an insulating film.

4. An HDMI connector according to claim 1, wherein: and a bearing (151) is also arranged between the driving rotating shaft (2) and the rotating shaft opening (15).

5. An HDMI connector according to claim 1, wherein: the length of the protrusion (22) is greater than the length of the groove (31).

6. An HDMI connector according to claim 1, wherein: the latch (231) is obliquely arranged, and the latch (231) is obliquely inclined at an acute angle from the root to the top.

7. An HDMI connector according to claim 6, wherein: the inclination angle of the latch (231) is 1-5 degrees.

8. An HDMI connector according to claim 1, wherein: the cross section of the upper half part of the binding post (12) is trapezoidal, and the cross section of the lower half part of the terminal (83) is trapezoidal.

9. An HDMI connector according to claim 1, wherein: the outer surface of the knob (21) is provided with a plurality of anti-skidding grooves.

10. An HDMI connector according to claim 1, wherein: and buffer backing plates are also arranged among the first cam (5), the second cam (6) and the transmission plate (81).