TWI479747B - Electrical connector - Google Patents

Description

Electrical connector

The invention provides an electrical connector, in particular, a slot of the Mini HDMI socket and the shielding shell is laterally disposed on the circuit board, so that the required width and circuit layout space of the circuit board can be further reduced, and the whole arrangement can be properly arranged. Line configuration, increase the freedom of circuit board design.

According to the trend of shrinking the size of computers, realizing computing and image processing, increasing the capacity of memory, and increasing the speed of transmission, cathode ray tube displays have been gradually replaced and eliminated from large displays such as desktop monitors. To the portable terminal display, LCD monitors are now used, and because the liquid crystal display can achieve high brightness, low power consumption, high resolution and other requirements, it becomes an indispensable part of daily life.

Furthermore, at present, the specifications of the interface on the market are generally used. The most widely used VGA connector is actually a transmission method of analog signal, which must be converted into a digital signal before being transmitted to the liquid crystal display for display, and the signal conversion is performed. In the process, the signal is depleted and distorted. With the advancement of hardware technology, the demand for pure digital transmission mode has been continuously improved, and the so-called DVI specification has been developed to transmit in full digitization even if the signal is from the display card. After being sent in digital mode, the liquid crystal display will also be directly received in a digital manner. Since the conversion process is reduced once, the quality of the display is greatly improved.

However, due to the limited transmission bandwidth of interfaces such as VGA and DVI, the development bottleneck has been encountered. Therefore, the development of the HDMI (High Definition Multimedia Interface) specification of the new specification has been developed, and the shortcomings of the conventional display interface have been improved. The transmitted video signal does not need to be compressed without the disadvantage of image distortion, and can have audio signal transmission function, mainly used in set-top boxes, DVD players, digital TVs, personal computers, and even mobile phones, digital cameras, etc. Products can transmit signals to each other through the HDMI interface, and the image signals will be presented with the highest resolution when transmitted, so that users can view them with the best quality.

In addition, the current HDMI connector has been considerably changed compared to VGA, DVI and other connectors. Its small size means that it can be used on more electronic products, and it can effectively reduce the use. The cost, but when the HDMI connector is connected to the circuit board, the pin positions of the multiple rows of the plurality of terminals inside the connector connector are arranged differently, and the plurality of contacts on the circuit board need to be aligned with the pin positions of the plurality of terminals. Matching, therefore, in order to effectively avoid the short circuit of the circuit board caused by the complex contact distance is too small, the common contacts of the common circuit board are mostly arranged in a line of straight lines, but this layout The width of the board must be sufficient to accommodate all the multiple contacts. As the size of the connector joints becomes smaller and smaller, if the width of the board is limited, the layout cannot be performed and the freedom of circuit board design is affected. degree.

Therefore, in order to effectively solve the problem of the limitation of the width caused by the layout mode of the above-mentioned circuit board, a manufacturer adopts a dislocation manner to lay out, and the plurality of contacts are arranged in a plurality of rows parallel to each other, and each contact is arranged. The grounding contacts in the array are disposed at an intermediate position between adjacent two signal contacts in the next contact array, such that each pair of signal contacts and ground contacts form an isosceles triangle or are interlaced Alignment arrangement, which can make the distance between adjacent contacts closer to meet the requirements of the width of the circuit board, but the layout of the misalignment makes the circuit at each contact on the circuit board have to be turned when extending. Avoiding the lines at the adjacent contacts and causing the line distances at the two adjacent contacts to be too close, which results in a short circuit and a bad rate increase when the contacts on the circuit board are soldered compared to the linear arrangement. The problem is to be redesigned to be effectively solved by those who are engaged in this industry.

Therefore, the inventor, in view of the problems and deficiencies of the HDMI connector, collected the relevant materials through various evaluations and considerations, and used the years of research and development experience in the industry to continuously try and modify, and then designed this kind of electrical connector invention. The patent was born.

The main purpose of the present invention is to provide a plurality of terminals in combination on the insulating base, and the soldering ends at the ends of the terminals are nineteen joints which are soldered on the circuit board and arranged in a three-row manner from front to back. Each of the plurality of contacts in the plurality of contacts is arranged in a diagonally gradual arrangement and in different rows, and the nineteenth contact forms a separation distance from the eighteenth contact and is located in any row. The structure of the Mini HDMI socket with the same function and the slot side of the shield case standing on the circuit board can reduce the required width and circuit layout space of the plurality of contacts on the circuit board, and can be arranged properly. The overall circuit configuration increases the freedom of circuit board design.

The secondary object of the present invention is that the plurality of terminals are matched to the plurality of contacts on the circuit board, and each of the first to the twelfth contacts is arranged in a series of diagonally progressively. There are grounding contacts and a pair of signal contacts in different rows, and each of the thirteenth to eighteenth contacts is arranged in a series of diagonally and gradually arranged in different rows. The common contact at the 19th contact is preferably implemented in the same row position of the outermost or innermost ground contact, so that the line at each contact on the circuit board does not extend when it is straightened out. The lines at the adjacent contacts are in contact with each other, which can effectively save the layout space of the circuit, and more space can be set on the circuit board to reduce the cost of use and become more competitive.

In order to achieve the above objects and effects, the technical means and the configuration of the present invention will be described in detail with reference to the preferred embodiments of the present invention.

Please refer to the first, second, third and fourth figures, which are respectively a perspective view, an exploded view, an exploded perspective view and a front view of another perspective of the present invention. As is clear from the figure, the present invention is The utility model comprises an insulating body 1, a plurality of terminals 2, a shielding shell 3 and a circuit board 4, wherein: The front side of the insulating base body 1 has a tongue-like horizontal abutting portion 11 along the width direction, and the insulating base body 1 is adjacent to the other side of the abutting portion 11 to provide a vertical base 12, and is provided at the base. A plurality of positioning posts 13 are disposed on the upper and lower sides of the outer side of the seat 12, and the abutting portion 11 of the insulating base 1 and the base 12 are formed perpendicularly.

The plurality of terminals 2 are combined and positioned on the insulating base 1 , and the contact portions 21 on one side of each terminal are located at the abutting portion 11 , and a turning arm 22 is turned by the contact portion 21 toward the base 12 , and the turning portion is turned. At the end of the arm 22, a welding end 23 is formed through the outside of the base 12, and the first turning portion 221 is formed by turning the turning arm 22 toward the contact portion 21, and the connecting portion of the turning arm 22 and the welding end 23 is a turning point. A second turning portion 222 is formed. The second welding portion 222 is adjacent to the second turning portion 222 and is provided with a positioning portion 24 positioned in the base 12, and is formed upward or downward by the welding end 23 toward the positioning portion 24. The obliquely extending arm 231 is bent.

The shield case 3 is positioned outside the insulating base 1 and is formed at the front of the shield case 3 with a slot 30 through which the mating portion 11 can be inserted, and the shield case 3 is adjacent to the slot 30. An opening 301 for exposing the base 12 is disposed at the rear side of the other side, and a plurality of positioning pins 31 extending horizontally are disposed at the upper and lower sides of the opening 301.

The surface of the circuit board 4 is a total of three rows of nineteen contacts 41 arranged in a front-to-back dislocation interval, and each of the contacts 41 can be a metal contact or a perforation type, and the first contact 41 To every three of the twelfth joints 41 The contact 41 is a group of sequentially arranged grounding contacts 411 and a pair of signal contacts 412 located in different rows, and each of the thirteenth to eleventh contacts 41 The plurality of contacts 41 are sequentially arranged in a diagonal direction with a common contact 413 located in different rows, and the nineteenth contact 41 is a universal contact 413 and formed with the eighteenth contact 41. a spacing distance is located in any row of positions, and the nineteenth contact 41 is preferably implemented in the same row position of the grounding contact 411 which can be located at the outermost or innermost side; and, the circuit board 4 is located at the plurality of contacts 41. A plurality of engaging holes 42 and perforations 43 are provided around the periphery.

Please refer to the fifth, sixth, seventh and eighth figures, which are respectively the side view of the invention, the definition of the pin position of the plurality of terminals, the wiring diagram of the circuit board and the wiring diagram of another line, which can be clearly seen from the figure. It can be seen that the plurality of terminals 2 are integrally molded and injectable out of the insulating seat body 1 by means of plastic injection, but in practical applications, they can also be combined and positioned on the insulating base body 1 by means of assembly, and the plural number is The soldering ends 23 of the terminals 2 are respectively passed outside the susceptor 12, whereby the small connector of the invention can be assembled into a small high-definition multimedia interface (Mini HDMI).

Furthermore, the plurality of terminals 2 described above have nineteen connection pins, and the designated functions of the pins of each terminal 2 are as follows, wherein the first, fourth, seventh and tenth of the plurality of terminals 2 are four legs. Ground signal pin (TMDS Data2 Shield, TMDS Data1 Shield, TMDS Data0 Shield, TMDS Clock Shield), the second, third, fifth, sixth, eighth, ninth, eleventh, and twelveteen pins are the differential signal pins (TMDS Data2+, TMDS Data2-, TMDS Data1+, TMDS Data1-, TMDS). Data0+, TMDS Data0-, TMDS Clock+, TMDS Clock-), and the thirteenth to nineteenth total seven pins are common signal pins (DCC/CEC Ground, CEC, SCL, SDA, Reserved, +5V Power) , Hot Plug Detect).

The manner in which the soldering ends 23 of the plurality of terminals 2 of the present invention are connected to the contacts 41 on the circuit board 4 is implemented by means of a through hole welding method. However, in practical applications, the surface adhesion is also selected depending on the structural design considerations. The technical (SMT) welding method forms an electrical connection. If the perforated welding method is taken as an example, the insulating base 1 is first inserted into the engaging hole 42 of the circuit board 4 by the plurality of positioning posts 13 on the base 12, and The soldering ends 23 of the terminals 2 are respectively inserted into the corresponding contacts 41 (such as the through holes) of the circuit board 4, and the plurality of positioning pins 31 of the shielding case 3 are respectively inserted into the corresponding through holes 43 of the circuit board 4. The solder is then soldered to form an electrical connection.

Referring to the second, fifth and sixth figures, the present invention is directed to the plurality of terminals 2 for the positioning of the insulating base 1 to match the corresponding plurality of the circuit board 4 The contact point 41, each of the first contact 41 to the twelfth contact 41 of the first contact 41 is arranged in a series of obliquely and gradually arranged with different grounding contacts 411 and a pair of signals. At point 412, each of the thirteenth contact point 41 to the eighteenth contact point 41 is arranged in a series of diagonally gradually arranged with a common contact 413 located in a different row, and the nineteenth The universal contact 413 at the contact 41 forms a separation distance from the eighteenth contact 41 and is located at any row. The function of the same Mini HDMI socket is matched with the slot 30 of the shield case 3. The structural design on the circuit board 4 can reduce the width required for the plurality of terminals 2 to match the plurality of contacts 41 on the circuit board 4, and the line 40 at each contact 41 will not extend when it is straightened out. The lines 40 at the adjacent points 41 are in contact with each other, and the overall line 40 configuration can be properly arranged, which can effectively save the layout space of the line 40, and can also increase the degree of freedom in the design of the circuit board 4 line 40, and the circuit board 4 has more The space can be set up with more electronic components, thereby reducing the cost of use and making the product more competitive.

The above detailed description is intended to be illustrative of a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are intended to be included in the scope of the patents covered by the present invention.

In summary, the electrical connector of the present invention can achieve its efficacy and purpose when it is used. Therefore, the invention is an invention with excellent practicability, and is in fact conforming to the application requirements of the invention patent, and submits an application according to law. The review committee will give an early appointment In this case, in order to protect the inventor's hard work, if there is any doubt in the bureau, please do not hesitate to give instructions, the inventor will try his best to cooperate, and feel really good.

1‧‧‧Insulated body

11‧‧‧Docking Department

12‧‧‧ Pedestal

13‧‧‧Positioning column

2‧‧‧ terminals

21‧‧‧Contacts

22‧‧‧ turning arm

221‧‧‧First Turning Department

222‧‧‧Second turning section

23‧‧‧welding end

231‧‧‧ oblique arm

24‧‧ ‧ Positioning Department

3‧‧‧Shield housing

30‧‧‧Slots

301‧‧‧ openings

31‧‧‧ Positioning Pins

4‧‧‧ circuit board

40‧‧‧ lines

41‧‧‧Contacts

411‧‧‧ Grounding contacts

412‧‧‧Signal contacts

413‧‧‧General contacts

42‧‧‧Join hole

43‧‧‧Perforation

The first figure is a three-dimensional appearance of the present invention.

The second figure is a perspective exploded view of the present invention.

The third figure is a perspective exploded view of another perspective of the present invention.

The fourth figure is a front view of the present invention.

The fifth drawing is a side view of the present invention.

The sixth figure is a definition of the position of the plurality of terminals of the present invention.

The seventh figure is a schematic diagram of the wiring of the circuit board of the present invention.

The eighth figure is a schematic diagram of another line wiring of the circuit board of the present invention.

1‧‧‧Insulated body

11‧‧‧Docking Department

12‧‧‧ Pedestal

13‧‧‧Positioning column

2‧‧‧ terminals

21‧‧‧Contacts

22‧‧‧ turning arm

221‧‧‧First Turning Department

222‧‧‧Second turning section

23‧‧‧welding end

231‧‧‧ oblique arm

24‧‧ ‧ Positioning Department

3‧‧‧Shield housing

30‧‧‧Slots

301‧‧‧ openings

31‧‧‧ Positioning Pins

4‧‧‧ circuit board

41‧‧‧Contacts

411‧‧‧ Grounding contacts

412‧‧‧Signal contacts

413‧‧‧General contacts

42‧‧‧Join hole

43‧‧‧Perforation

Claims (9)

An electrical connector includes an insulating base body and a plurality of terminals, wherein: the front side of the insulating base body has a pair of connecting portions along the width direction, and is disposed at a rear side of the insulating seat body adjacent to the opposite side of the abutting portion a pedestal, wherein the abutting portion is perpendicular to the pedestal; the plurality of terminals are combined and positioned on the insulating base body, and the contact portions at one side of each terminal are located at the abutting portion, and the contact portion is turned toward the pedestal There is a turning arm extending, and the end of the turning arm is provided with a welding end which is worn outside the base, and each welding end is 19 joints which are welded on the surface of the circuit board and are arranged in a three-row manner from front to back. Each of the first contact to the twelfth contact is a group of systems which are arranged in a diagonally gradual arrangement with ground contacts and a pair of signal contacts at different rows, and by the thirteenth Each of the three contacts from the contact point to the eighteenth contact point is a group of sequential gradual gradual gradual arrangement of common contacts located in different rows, and the nineteenth contact point is a universal contact and The eighteenth contact forms a separation distance and is located in either row. The electrical connector of claim 1, wherein the outer portion of the insulating seat is shielded and positioned with a shielding shell, and a slot for the abutting portion to protrude into the front of the shielding shell is formed. The electrical connector of claim 2, wherein the outer side of the base of the insulating base is provided with a plurality of positioning posts, and the shielding shell is adjacent to the rear of the other side of the slot. An opening for the base to be exposed, and a plurality of positioning pins are provided around the opening. The electrical connector of claim 1, wherein each of the plurality of folding ends of the plurality of terminals is formed with a first turning portion toward the contact portion, and a second turning portion is formed by turning the connecting portion of the turning arm and the welding end. The electrical connector of claim 4, wherein the second turning portion of the plurality of soldering ends of the plurality of terminals facing the turning arm is an obliquely extending arm formed with a second upward or downward bending. The electrical connector of claim 4, wherein each of the welding ends of the plurality of terminals is adjacent to the second turning portion, and is provided with a positioning portion positioned in the base, and is formed by the welding end toward the positioning portion. Oblique arm. The electrical connector of claim 1, wherein the first, fourth, seventh, and tenth pins of the plurality of terminals are ground signal pins, and the second, third, fifth, sixth, and eighth A total of eight pins are used to transmit differential signal pins, and a total of seven pins in the thirteenth to nineteenth are general signal pins. The electrical connector of claim 1, wherein each of the contacts of the circuit board is of a metal contact or a perforation type, and a plurality of engaging holes and perforations are disposed around the plurality of contacts. The electrical connector of claim 1, wherein the nineteenth contact on the circuit board is preferably implemented in the same row position of the outermost or innermost ground contact.