CN103208696A - Socket connector and plug connector - Google Patents

Abstract

A socket connector includes: a main body, a plurality of conductive terminals fixed on the main body, and a shielding case covering the main body. wall and two side walls connected between the top wall and the bottom wall, the body is provided with a base and a tongue plate extending forward from the base into the receiving space, and the conductive terminal is provided with a contact portion extending to the tongue plate , the side wall of the shielding housing includes a first side wall connected to the top wall and a second side wall connected to the first side wall and the bottom wall, and the second side wall is connected to the first side wall and the bottom wall An included angle of approximately 45 degrees is formed respectively. The invention also includes a plug connector intermateable with the receptacle connector. The socket connector of the invention has a simple structure, can be matched with two kinds of plug connectors, and has a high transmission rate.

Description

Receptacle Connectors and Plug Connectors

【Technical field】

The invention relates to a socket connector and a plug connector capable of increasing the transmission rate of high-frequency signals.

【Background technique】

Different electronic devices are usually connected by a signal transmission line to transmit signals to each other. Currently, the signal transmission line and the electronic device are mostly detachably connected through a connector on one end of the transmission line and a connector socket on the electronic device.

The most popular signal transmission specification for electronic products such as digital cameras, mobile phones, and MP3s is the Universal Serial Bus (USB, Universal Serial Bus). Micro-connector sockets and transmission lines made of this specification can reduce the occupation of digital cameras, mobile phones, The volume of electronic products such as MP3 is convenient for consumers to carry and use. At present, the commonly used Micro Universal Serial Bus (Micro USB) specification is mostly version 2.0, and the theoretical transmission value can reach 480Mbps.

However, the amount of software data in electronic products such as digital cameras, mobile phones, and MP3 players continues to increase, and the existing USB 2.0 is gradually unable to meet the needs of high-traffic data transmission. China Video Electronics Industry Association announced a new signal transmission specification on April 29, 2009: DiiVA (DiiVA Digital Interface for Video and Audio). The signal transmission value can reach more than 10Gbps, which is enough to meet the needs of high-traffic data transmission. In order to be used in digital cameras, mobile phones, MP3 and other small electronic products, the association plans to develop a small DiiVA interface, hereinafter referred to as Micro Diiva.

The Chinese Utility Model Patent No. CN201397899Y announced on February 3, 2010 discloses a related socket and plug. However, the socket in the patent is not compatible with the Micro USB interface, and the portable products currently on the market still use the The USB connector is the mainstream configuration. In the short term, the USB interface is still widely used in various electronic products and there is no risk of disappearing. In response to the demand for high-traffic transmission, digital cameras, mobile phones, MP3 and other electronic products may also be included in Micro Diiva in the future. Therefore, digital cameras, mobile phones, MP3 and other electronic products in the near future will have connector sockets of the above two specifications at the same time. However, a connector socket with the above two interfaces provided at the same time will inevitably increase the size of the electronic product, which is not suitable for the development of miniaturization of the electronic product. Therefore, some people try to arrange the Micro USB and Micro DiiVA connector sockets side by side in the same housing up and down, that is, the housing includes two sets of terminals and two fixing seats at the same time. However, this combination makes the entire connector The thickness of the socket is increased, which in turn increases the thickness of the electronic product with the connector socket, which is also not conducive to the development of miniaturization of electronic products and is inconvenient to carry; the above two methods need to add a connector socket, which will inevitably cause manufacturing costs. increase.

Of course, there are also people who try to set the terminals in the two connector sockets on the same socket, such as setting the two groups of terminals on the two connectors on both sides of the tongue plate on the same socket respectively, and on both sides of the tongue plate. Separately set up storage spaces for two kinds of mating plug connectors; however, for Micro USB and Micro DiiVA connector sockets that only have one row of terminals and the socket itself is small in size, adding a row of terminals must increase the tongue plate. Thickness, so it cannot be matched with a standard butt plug connector; if a row of terminals is added without increasing the thickness of the tongue plate, it will inevitably make the part of the tongue plate slotted to accommodate the terminals thinner and easy to break; and the tongue plate After the storage space is provided on both sides, the thickness of the connector socket will still be increased, and when in use, the upper or lower side of the Micro USB or Micro DiiVA plug connector cannot be limited, so it is easy to shake and fall off.

Therefore, it is necessary to improve the existing socket connector and plug connector to overcome the above-mentioned defects.

【Content of invention】

The object of the present invention is to provide a plug connector and a socket connector that can increase the transmission rate of high-frequency signals.

In order to achieve the above object, the present invention adopts the following technical solution: a socket connector, which is suitable for inserting two different plug connectors, and the socket connector includes: a body, a number of conductive terminals fixed on the body and a cover body A shielding shell, the shielding shell is provided with a storage space for accommodating the plug connector, a top wall located on the upper and lower sides of the storage space, a bottom wall, and two side walls connected between the top wall and the bottom wall, the body There is a base and a tongue plate extending forward from the base into the receiving space, the conductive terminal is provided with a contact portion extending to the tongue plate, the side wall of the shielding shell includes a first side wall connected to the top wall and The second side wall connecting the first side wall and the bottom wall, the bottom wall is provided with two first walls bent and extended inwardly from the lower side of the second side wall, and respectively accommodated from the inner ends of the two first walls The two second walls extending obliquely in the space and the third wall connecting the two second walls, the second side wall and the first side wall and the first wall respectively form an included angle of approximately 45 degrees.

A plug connector, which includes: a body, a plurality of conductive terminals fixed on the insulating body, and a shielding shell covering the body, the shielding shell is provided with a corresponding top wall, a bottom wall, and is connected to the top wall and the bottom wall. Two end walls between the walls, the body is provided with a base and a tongue plate extending forward from the base, the conductive terminal is provided with an elastic contact portion extending to the tongue plate, and the end wall of the shielding shell includes There is a first end wall connected to the top wall and a second end wall obliquely connected to the first end wall and the bottom wall, and the bottom wall is provided with two first walls bent and extended inwardly from the lower side of the second end wall, Two second walls extending obliquely inward from the inner ends of the two first walls and a third wall connecting the two second walls, between the second end wall and the first end wall and the first wall The oblique connections form an included angle of approximately 45 degrees.

Compared with the prior art, the present invention has the following beneficial effects: the socket connector of the present invention is small in size, adapts to the development direction of miniaturization of the electronic industry, and is applicable to docking of two different plug connectors at the same time. The plug connector of the present invention can be matched with the aforementioned socket connector, and can realize high-speed transmission.

【Description of drawings】

FIG. 1 is a three-dimensional schematic diagram of a mating socket connector and a plug connector of the present invention.

FIG. 2 is a schematic perspective view of the receptacle connector and the plug connector of the present invention when they are not docked.

Fig. 3 is a three-dimensional assembled view of the socket connector of the present invention.

FIG. 4 is a three-dimensional assembled view of another angle of the socket connector of the present invention.

Fig. 5 is a front view of the socket connector of the present invention.

FIG. 6 is a partially exploded perspective view of the socket connector of the present invention.

FIG. 7 is a partially exploded perspective view of the receptacle connector of the present invention from another angle.

FIG. 8 is an exploded perspective view of the socket connector of the present invention.

FIG. 9 is an exploded perspective view from another angle of the socket connector of the present invention.

Fig. 10 is a partial perspective view of the plug connector of the present invention.

Fig. 11 is an exploded perspective view of the plug connector of the present invention.

【Detailed ways】

Please refer to Fig. 1 and Fig. 2, the present invention includes a plug connector 900 (hereinafter referred to as plug 900) and a socket connector 100 (hereinafter referred to as socket 100), and the plug 900 and socket 100 are mutually pluggable. docking connector.

3 to 7, the socket 100 includes a first body 1, a number of first conductive terminals 2 held on the first body 1, and a first shielding shell 3 covering the first body 1. The first shielding shell 3 is provided with a first receiving space 30 for receiving the mating plug 900 .

The first body 1 includes a first base 11 and a first tongue 12 protruding forward from the first base 11 . The first tongue 12 extends along the horizontal direction, and includes an upper surface 121 and a lower surface 122 opposite to the upper surface 121 . The lower surface 122 is provided with a plurality of terminal receiving grooves 1221 arranged at intervals and a protruding rib 1222 protruding downward from the lower surface 122 to separate two adjacent receiving grooves 1221 . The protruding ribs 1222 are used to separate the first conductive terminals 2 to prevent mutual contact. In this embodiment, the first body 1 is made of insulating material, and the first base 11 and the first tongue 12 are integrally extended. Of course, in other implementations, the first tongue plate 12 can be provided separately from the first base portion 11 and then combined together in an assembled manner. The first base 11 has a front surface 110 connected to the first tongue plate 12 , a rear surface 111 opposite to the front surface 110 , a top surface 112 , a bottom surface 113 and two side surfaces 114 . The top surface 112 , the bottom surface 113 and the side surfaces 114 are respectively provided with a plurality of protrusions 115 to interfere with the first shielding shell 3 . The first base portion 11 is further provided with a pair of protrusions 116 protruding outward from the junction of the rear surface 111 and the two side surfaces 114 to cooperate with the shielding shell 3 . The first base 11 is also provided with a recessed portion 1131 formed from the middle of the bottom surface 113 toward the top surface 112 and a protruding portion 1132 extending downward from the junction of the rear surface 111 and the bottom surface 113. The protruding portion 1132 Located behind the recessed portion 1131 . The terminal accommodating groove 1221 extends backward and passes through the protruding portion 1132 downward.

7 and 8, the first conductive terminal 2 only includes two types of ground terminals and differential signal terminals, and the first conductive terminal 2 only includes two pairs of differential signal terminals and is located between the two pairs of differential signal terminals. A ground terminal G between the signal terminals, wherein the two pairs of differential signal terminals include a pair of video signal terminals 21 and a pair of mixed signal terminals (Hibrid Channel) 22 . The arrangement sequence of the first conductive terminals 2 is: a pair of video signal terminals 21 , a ground terminal G, and a pair of mixed signal terminals 22 . Each pair of differential signal terminals includes a positive signal terminal and a negative signal terminal. The ground terminal G located between two pairs of differential signal terminals 21, 22 can widen the distance between two pairs of differential signal terminals 21, 22, and further weaken the signal between two adjacent pairs of differential signal terminals 21, 22 interference. Each video signal terminal 21 unidirectionally transmits video signals; and two mixed signal terminals (Hibrid Channel) 22 are used to transmit audio signals and bidirectionally transmit other data signals to achieve faster transmission speed. In addition, the socket 100 in the present invention has five first conductive terminals 2 in total, which are relatively small in number and simple in structure, thereby reducing the volume and material cost of the socket 100 to adapt to the development trend of miniaturization of electronic products. Moreover, the first conductive terminals 2 only include two types, and the corresponding functions of the first conductive terminals 2 are relatively simple and uncomplicated, which facilitates the design of a matching circuit board or chip, and facilitates the popularization and utilization of the socket 100 . In addition, only five first conductive terminals 2 include two pairs of differential signal terminals 21 , 22 , which can achieve faster data transmission speed.

From a structural point of view, each first conductive terminal 2 is provided with a holding portion 25 fixed on the first base portion 11, and a flat contact portion 26 extending forward from the holding portion 25 and being accommodated in the terminal receiving groove 1221. The soldering portion 27 connecting the circuit board and the connecting portion 28 connecting the holding portion 25 and the soldering portion 27 are used. Both the contact portion 26 and the welding portion 27 extend along the horizontal direction. Please refer to FIG. 5 , as seen from the docking direction of the socket 100, the contact portions 26 are arranged in a row along the horizontal direction on the same side of the first tongue plate 12 (in this embodiment, the first tongue plate 12 on the lower surface 122 of the socket), so that the thickness of the first tongue plate 12 is reduced, and the overall thickness of the socket 100 is also reduced. The contact portion 26 is exposed downward in the first receiving space 30 to facilitate electrical connection with the mating plug 900 . The soldering portion 27 is soldered to a circuit board (not shown) in a surface mount manner.

In this embodiment, the first conductive terminal 2 is formed by punching a metal strip, and is installed on the first body 1 by overmolding. Certainly, in other implementation manners, the first conductive terminal 2 may also be fixed on the first body 1 by assembling.

The first shielding shell 3 is formed by stamping and bending a piece of metal material. The first shielding shell 3 includes a first top wall 31 opposite to the upper surface 121 of the first tongue plate 12, a first bottom wall 32 opposite to the lower surface 122 of the first tongue plate 12, and a first bottom wall 32 connected to the first top wall. Two side walls 33 between the wall 31 and the first bottom wall 32 . The first receiving space 30 is located between the first top wall 31 and the first bottom wall 32 . The first top wall 31 is provided with a pressing elastic piece 311 extending backward, locking holes 312 located on both sides of the pressing elastic piece 311 and a pair of pressing elastic pieces 313 formed by tearing from the rear side of the first top wall 31 . The pressing elastic arm 313 includes a flat plate portion extending backward from the middle of the first top wall 31 beyond the rear end of the first body 1 , and dovetail-shaped wing portions extending from the flat plate portion to both sides respectively, and the wings are along the width of the body 1 . The direction is inclined downward so that one side of the wing portion forwardly abuts against the rear surface 111 of the first body 1 . The pressing elastic arm 313 presses and fixes the first main body 1 in the first shielding shell 3 towards the direction of the first receiving space 30 . Each side wall 33 includes a first side wall 331 connected to the first top wall 31 and a second side wall 332 obliquely connected to the first side wall 331 and the first bottom wall 32 . The second side wall 332 is obliquely connected with the first side wall 331 and the first bottom wall 32 respectively to form an included angle a, and the included angle a is 45 degrees with a vertical error of no more than 5 degrees. The second side wall 332 is located between the first side wall 331 and the first bottom wall 32 along the width direction of the first body 1 , so that the width of the first top wall 31 along the width direction of the first body 1 is larger than that of the first top wall 31 . The width of the bottom wall 32 along the width direction of the first body 1 . between the first top wall 31 and the first side wall 331 , between the first side wall 331 and the second side wall 332 , and between the second side wall 332 and the first bottom wall 32 They are all connected through a circular arc surface transition. The first shielding shell 3 is also provided with mounting feet 34 vertically extending downward from the lower end of the first side wall 331 for positioning the electrical receptacle connector 100 on the circuit board.

The first bottom wall 32 includes a first wall 321 extending inward from the lower ends of the two second side walls 332, a second wall 322 extending obliquely upward from the two first walls 321, and connecting the two second walls. 322 of the third wall 323 . Both the first wall 321 and the third wall 323 are parallel to the first top wall 31 , and the third wall 323 is located above the first wall 321 and the second wall 322 . The two first walls 321 are located in the same plane, and have the same width extending along the width direction of the first body 1 . The width of the third wall 323 extending along the width direction of the first body 1 is greater than the width of each first wall 321 , and the third wall 323 is located between the first top wall 31 and the first wall 321 . The combination of the first wall 321 , the second wall 322 and the third wall 323 forms an anti-mis-insertion structure for preventing other unmatched plugs from being inserted into the first receiving space 30 . The distance between the first top wall 31 and the upper surface 121 of the first tongue plate 12 is smaller than the distance between the first bottom wall 32 and the lower surface 122 of the first tongue plate 12 .

In summary, the third wall 323 of the first bottom wall 32 , the first top wall 31 , the first side wall 331 of the two side walls 33 , the part of the second side wall 332 and the part of the first tongue plate 12 The first plug interface corresponding to the standard Micro USB 2.0 B Type plug connector is formed between them (refer to the dotted line box in Figure 5). A second socket corresponding to the Micro Diiva plug connector is formed between the first top wall 31 , the two side walls 33 , the entire first bottom wall 32 and the first tongue plate 12 .

Please refer to Fig. 1, Fig. 2, Fig. 10 and Fig. 11, the plug 900 in the present invention includes a second body 4, a number of second conductive terminals 5 and locking terminals 6 held on the second body 4, positioning the first The positioning part 71 of the two conductive terminals 5 , the second metal shielding shell 8 covering the second body 4 and the cable 9 connected to the rear end of the plug 900 .

The second body 4 includes a second base 41 and a second tongue 42 extending forward from the second base 41 . The second tongue 42 has an upper surface 421 and a lower surface 422 . The middle part of the upper surface 421 is recessed with a second receiving space 43 passing through the front end of the second tongue 42 to accommodate the first tongue 12 on the socket 100 . The second receiving space 43 forms a bottom surface 431 . The lower surface 422 of the second tongue plate 42 is designed in a curve, which is roughly similar to the outline of the first bottom wall 32 of the socket 100. It includes first surfaces 4221 located at the left and right ends of the lower surface 422, facing upward from the two first surfaces 4221 respectively. The second surface 4222 extending obliquely, and the third surface 4223 connecting the two second surfaces 4222 . Both the first surface 4221 and the third surface 4223 are parallel to the upper surface 421 , and the third surface 4223 is located above the first surface 4221 .

The bottom surface 431 of the second receiving space 43 is recessed with a plurality of terminal receiving grooves 432 penetrating to the rear end of the second body 4 . The second conductive terminal 5 is received in the terminal receiving groove 432 and has an arc-shaped elastic contact portion 54 extending into the second receiving space 43 . The left and right ends of the upper surface 422 are respectively recessed with a retaining groove 4231 penetrating through the lower surface 422 of the second tongue 42 and connected to the rear end of the second base 41 outside the second receiving space 432 . The locking terminal 6 is fixed in the holding groove 4231 and has an elastic locking portion 63 extending above the upper surface 421 .

The second conductive terminal 5 is arranged corresponding to the first conductive terminal 2 on the socket 100 , and also includes two pairs of differential signal terminals and a ground terminal G located between the two pairs of differential signal terminals. The two pairs of differential signal terminals are correspondingly arranged on the socket 100 as a pair of video signal terminals 51 and a pair of mixed signal terminals (Hibrid Channel) 52 . The ground terminal G is located between the two pairs of differential signal terminals 21, 22, which can widen the distance between the two pairs of differential signal terminals 51, 52, and further weaken the distance between the two adjacent pairs of differential signal terminals 51, 52. interference. In addition, the front end of the ground terminal G is arranged closer to the front end of the second tongue plate 42 than the two pairs of differential signal terminals 51, 52. When plugged into the docking socket 100, the ground terminal G can be connected to the grounding terminal on the socket 100 first. The terminal G is electrically connected to eliminate external static interference to provide a better signal transmission environment for the two pairs of differential signal terminals 51 and 52 . Similarly, each video signal terminal 51 unidirectionally transmits video signals; and a mixed signal terminal (Hibrid Channel) 52 is used for transmitting audio signals and bidirectionally transmitting other data signals to achieve faster transmission speed.

From a structural point of view, each second conductive terminal 5 is provided with a holding portion 53 fixed on the second base portion 41 , and the arc-shaped contact portion 54 extending forward from the holding portion 53 and being accommodated in the terminal receiving groove 432 , and a connecting portion 55 extending backward from the holding portion 53 to connect the cable 9 . Please refer to FIG. 7 , as seen from the mating direction of the plug 900, the contact portions 54 are arranged in a row along the horizontal direction, and the contact portions 54 are located on the same side of the second tongue plate 42 (in this embodiment The middle is on the upper surface 431 of the second tongue plate 42). The contact portion 54 is elastically exposed upward in the second receiving space 43 to facilitate electrical connection with the docking socket 100 .

The plug 900 of the present invention has five second conductive terminals 5 in total, which are relatively small in number and simple in structure, thereby reducing the volume and cost of materials of the plug 900 to adapt to the development trend of miniaturization of electronic products. In addition, the second conductive terminal 5 only includes two types, and the corresponding functions of the second conductive terminal 5 are relatively simple and uncomplicated, which facilitates the design of the circuit board or chip matched with it, and facilitates the promotion of the plug connector 900 use. In addition, the only five second conductive terminals 5 include two pairs of differential signal second conductive terminals 51 , 52 , which can achieve faster data transmission speed.

The plug 900 of the present invention includes two locking terminals 6 , wherein each locking terminal 6 includes a fixing portion 61 fixed in the holding groove 4231 and an elastic arm 62 extending forward from the fixing portion 61 . The elastic arm 62 is accommodated in the holding groove 4231 and can move up and down. The elastic locking portion 63 extends upward from the end of the elastic arm 62 and is movable in an up-down direction. The lock portion 63 is used to lock with the lock hole 312 on the socket 100 to securely hold the plug 900 in the first receiving space 30 .

The positioning block 71 is fixed on the rear end of the second body 4, and it is provided with a number of through-holes 710 spaced up and down to separate the rear ends of the adjacent second conductive terminals 5 to prevent mutual contact and short circuit, and At the same time, the connecting portion 55 of the second conductive terminal 5 is supported to stably connect with the cable 9 .

The second shielding shell 8 includes a docking portion 81 wrapped around the second tongue plate 42 . The docking portion 81 includes a second top wall 811 , a second bottom wall 812 and two end walls 813 respectively abutting on the upper surface 421 , the lower surface 422 and two sides of the second tongue plate 42 . The second receiving space 43 is formed between the second top wall 811 and the bottom surface 431 . The structure of the second bottom wall 812 is basically the same as that of the lower surface 422 of the second tongue plate 42 and the outline of the first bottom wall 32 so as to cover the lower surface 422 of the second tongue plate 42 and be able to be inserted into the receiving space 30 of the socket 100 Inside. The end wall 813 of the second shielding shell 8 includes a first end wall connected to the second top wall 811 and a second end wall obliquely connected to the first end wall and the second bottom wall 812, the second bottom wall 812 is provided with two first walls bent inwardly from the lower side of the second end wall, two second walls obliquely extended inwardly from the inner ends of the two first walls, and a first wall connecting the two second walls. Three walls, the first wall abuts against the first surface 4221 of the second body 4 , the second wall abuts against the second surface 4222 , and the third wall abuts against the third surface 4223 . The second end wall is obliquely connected with the first end wall and the first wall to form an included angle of approximately 45 degrees. The second top wall 811 is provided with an opening 8111 corresponding to the elastic locking portion 63 , and two interference strips 8112 located between the two openings 8111 to interfere with the first top wall 31 on the socket 100 . The locking portion 63 extends to the outside of the second top wall 811 through the opening 8111 . The pressing elastic piece 311 interferes with the second top wall 811, the locking part 63 and the locking hole 312 form a locking mechanism, and the side wall 33 and the end wall 813 respectively resist, so that the plug 900 is docked with Multiple locks or resistances are formed between the sockets 100 to enhance the holding force between the two sockets and ensure the stable transmission of signals between the two sockets.

In summary, the above are only preferred embodiments of the present invention, and should not limit the scope of the present invention, that is, any simple equivalent changes and modifications made according to the claims of the present invention and the contents of the description should all be Still belong to the scope that the patent of the present invention covers.

Claims (10)

1. socket connector, be applicable to the two kinds of different pin connectors of pegging graft, described socket connector comprises: body, the shielding casing that is fixed in the some conducting terminals on the body and hides body, described shielding casing is provided with the receiving space of accommodating pin connector, be positioned at the roof of receiving space upper and lower sides, diapire and be connected in roof and diapire between two sidewalls, described body is provided with base portion and extends forwardly to the hyoplastron of receiving space from base portion, described conducting terminal is provided with the contact site that extends on the hyoplastron, it is characterized in that: the sidewall of described shielding casing includes the first side wall that connects roof and second sidewall that connects the first side wall and diapire, described diapire is provided with two first walls that bend inwards and extend from the second sidewall downside, two second walls that tilt to extend in the receiving space respectively from two first wall the inners and the 3rd wall that connects two second walls, described second sidewall and described the first side wall and first wall form respectively and are roughly 45 angles of spending.

2. socket connector as claimed in claim 1 is characterized in that: be parallel to each other between described first wall and the 3rd wall and the roof, described second wall and the 3rd wall all be positioned at hyoplastron under, described the 3rd wall is between roof and first wall.

3. socket connector as claimed in claim 2, it is characterized in that: described the 3rd wall is positioned at first wall top, and with roof, two the first side walls and two second sidewalls and hyoplastron between form the Micro USB 2.0 B Type pin connectors of standard corresponding first insert contact opening.

4. socket connector as claimed in claim 3 is characterized in that: form pin connector corresponding second interface different with another kind between described roof, two the first side walls, two second sidewalls, whole diapire and hyoplastrons.

5. socket connector as claimed in claim 1, it is characterized in that: described hyoplastron is provided with upper surface towards roof, towards the lower surface of diapire and from the outstanding some fins of lower surface, described conducting terminal is between adjacent two fins, and described contact site is the lower surface that tabular is arranged in hyoplastron.

6. socket connector as claimed in claim 5 is characterized in that: the lower surface of described hyoplastron to the distance of diapire greater than the upper surface of the described hyoplastron distance to roof.

7. socket connector as claimed in claim 1 is characterized in that: described roof is provided with and extends into the compress shell fragment of receiving space to interlock and to hold with pin connector, and be positioned at compress the shell fragment both sides with the bonnet lock hole of butt connector snap close.

8. socket connector as claimed in claim 1, it is characterized in that: described shielding casing also is provided with the elastic arm that compresses that tears formation from the roof rear side, and the described elastic arm that compresses compresses body with the location body to the receiving space direction.

9. socket connector as claimed in claim 8, it is characterized in that: described compress elastic arm comprise the flat part that exceeds the body rear end of extending back from roof middle part, from the dovetail shaped alar part that plate part does not extend to both sides, described alar part is tilted to down so that support the body rear end before the side direction of alar part along the body Width.

10. pin connector, it comprises: body, the shielding casing that is fixed in the some conducting terminals on the insulating body and hides body, described shielding casing is provided with corresponding roof, diapire and be connected in roof and diapire between two end walls, the hyoplastron that described body is provided with base portion and extends forward from base portion, described conducting terminal is provided with the elastic contact part that extends on the hyoplastron, it is characterized in that: the end wall of described shielding casing includes first end wall that connects roof and second end wall that tilts to connect first end wall and diapire, described diapire is provided with two first walls that bend inwards and extend from the second end wall downside, slope inwardly respectively from two first wall the inners two second walls that extend and the 3rd wall that connects two second walls tilt to be connected to form to be roughly 45 angles of spending respectively between described second end wall and described first end wall and the first wall.

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