CN201562779U

CN201562779U - Inverse inserting-preventing socket

Info

Publication number: CN201562779U
Application number: CN2009202610919U
Authority: CN
Inventors: 唐文龙
Original assignee: Shenzhen Skyworth Digital Technology Co Ltd
Current assignee: Shenzhen Skyworth Digital Technology Co Ltd
Priority date: 2009-12-04
Filing date: 2009-12-04
Publication date: 2010-08-25
Anticipated expiration: 2019-12-04

Abstract

The utility model discloses an Inverse inserting-preventing socket, comprising a groove-shaped plastic housing of the socket, the plastic housing is a left and right symmetrical structure about a symmetrical surface, at least two pins are embedded from the bottom of the plastic housing into the groove, the axle centers of the pins are mutually parallel and located on one plane perpendicular to the symmetrical surface, the pins are arranged at the left and right sides of the symmetrical surface in an asymmetric way. According to the utility model, after the socket is rotated at an angle of 180 DEG, the socket can not be matched with a welding tray hole on a printed circuit board (PCB), namely, the socket is prevented to be inversely inserted, moreover, by the different arranging position of the special pins on different sockets, the socket can be effectively prevented from being inserted into the wrong PCB welding tray (jack) when two sockets with same pin numbers are placed together, thus improving the production efficiency and the product qualified rate.

Description

A kind of anti-anti-inserted socket

Technical field

The utility model relates to the circuit board connector, relates in particular to a kind of circuit board connector socket.

Background technology

Socket is a widely used connector in the various electronic products, links to each other with winding displacement, is used for being connected of signal and power supply between the PCB, is an indispensable part in the various electronic products.Socket is made up of plastic casing and copper pin, as shown in Figure 1, contact pin 1 (waiting the shape contact pin) is fixed in the plastic casing 2 equally spacedly by certain distance, contact pin 1 and plastic casing 2 are all about the plane of symmetry 5 left-right symmetric, one side of plastic casing 2 has two guide grooves 3 of symmetry, be used for correspondingly, prevent that winding displacement and socket from connecing instead with corresponding two projections of winding displacement.When the assembling of winding displacement and socket, winding displacement there are two sulculuses on the local alignment socket of two small embossments, firmly can allow winding displacement and socket close fit be in the same place downwards, realize being electrically connected between the various boards.

In electronic product, socket and winding displacement are used very extensive, for example in set-top box, circuit mainly is divided into switching power circuit, mainboard, keying panel circuit, USB plate circuit and intelligent clamp circuit etc., and all be to each have independent circuit board generally, various power supplys and signal are transmitted between these circuit modules mutually, just these circuit boards must be coupled together, just need use many winding displacements and socket.Being connected of socket and circuit board wherein, be by be provided with at corresponding seat on the circuit board with socket on contact pin quantity, shape, measure-alike jack, after socket embeds, contact pin is welded on the circuit board.But at present in the various sockets that use, axisymmetric fully about all being, just on circuit board, we are can insert fully in the original board pads (jack) with socket one 180 degree of turning round.At present, anti-in order to prevent the socket dress, just on printed circuit board (PCB), marked the silk-screen of a band direction, but, therefore, can not stop the appearance of the anti-inserted phenomenon of socket because the plug-in unit operation of socket all is artificial.If we assemble a socket according to the tram assembling and one 180 degree of turning round, its pairing signal makes antipodal, so in case connect anti-, signal and power supply between two circuit boards can not correctly transmit, system is with regard to cisco unity malfunction, sometimes because the corresponding mistake of voltage also can be brought various ill effects such as burning of circuit.Also have, owing to the jack that may have only a corresponding same pin number on the circuit board incessantly, when the jack distance of these two corresponding same pin numbers is closer, when final assembly, just might cause the socket wrong, in case wrong, system will cisco unity malfunction, causes doing over again, and because two socket striking resemblances, on the streamline that the electronic product of anxiety is produced, this wrong right and wrong are usually seen.Therefore, invent a kind of socket, prevent that the indirect wrong plug of anti-inserted rigging position mistake that causes of socket itself and socket and different jacks mistake has very realistic meanings, also will further improve the qualification rate of product and enhance productivity.

Summary of the invention

In order to address the aforementioned drawbacks, the present invention proposes a kind of anti-anti-inserted socket, it can stop the appearance of the anti-inserted phenomenon with socket wrong jack of socket itself, enhances productivity and product percent of pass.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of anti-anti-inserted socket, the plastic casing that comprises the flute profile of socket, plastic casing are the left-right symmetric structures about the plane of symmetry, are embedded with at least two contact pins by the plastic casing bottom surface to groove.The axle center of described each contact pin is parallel to each other and is in the same plane, and this plane is vertical with the plane of symmetry, and the contact pin of the plane of symmetry left and right sides is asymmetric mutually.

Described contact pin is divided into shape contact pins such as the different contact pin of a Gent and at least one; Special contact pin is arranged on the plastic casing plane of symmetry outside, and special contact pin and each wait the axle center of shape contact pin to be parallel to each other and be in the same plane; Deng the shape contact pin with wait that shape, size equate between the shape contact pin, spacing is equal between the two adjacent arbitrarily contact pins such as shape such as grade.Thereby the contact pin of realizing the plane of symmetry left and right sides is asymmetric mutually.

Scheme can be that described special contact pin length equates with waiting shape contact pin, but special contact pin section radius waits shape contact pin section radius greater or lesser.

Scheme can be that described special contact pin length equates with waiting shape contact pin, but special contact pin is respectively circular and square with the cross section of waiting the shape contact pin.

It is identical with the geomery that waits the shape contact pin that scheme can be described special contact pin, but special contact pin such as is adjacent at the spacing between the shape contact pin, the shape contact pin such as is greater than or less than and spacing between the shape contact pin such as is adjacent.

The plastic casing edge of opening of flute profile also is provided with guide groove described in aforementioned arbitrary scheme.

The utility model is by setting up special contact pin waiting in the shape contact pin of existing embedding socket plastic casing, the cross sectional shape of wherein special contact pin and other contact pin such as shape such as grade or size is different or be that spacing between special contact pin and shape contact pin such as adjacent is different from the distance between two shape contact pins such as adjacent, guarantee that simultaneously special contact pin is not arranged on the symmetrical centre of plastic casing, thereby constitute asymmetrical contact pin set, make socket after the mistake turnback, can't cooperate (it is anti-inserted promptly to stop socket) with the jack (pad) on the PCB; And the difference by special contact pin on the different sockets is provided with the position, effectively stops the appearance of phenomenon of the socket wrong jack of same pin number; Enhance productivity and product percent of pass.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described further:

Fig. 1 has the socket schematic diagram now;

Fig. 2 is the utility model preferred embodiment one structural representation;

Fig. 3 is the utility model preferred embodiment two structural representations;

Fig. 4 is the utility model preferred embodiment three structural representations.

Embodiment

Referring to figs. 1 through a kind of anti-anti-inserted socket of Fig. 4, the plastic casing 2 that comprises the flute profile of socket, plastic casing 2 is the left-right symmetric structures about the plane of symmetry 5, be embedded with at least two contact pins by plastic casing 2 bottom surfaces to groove, the axle center of each contact pin (special contact pin 4, etc. shape contact pin 1) is parallel to each other and is in the same plane, this plane is vertical with the plane of symmetry 5, but the contact pin of the plane of symmetry left and right sides is asymmetric mutually.Wherein the mutual asymmetric implementation method of the contact pin of the plane of symmetry 5 left and right sides is that contact pin is divided into special contact pin 4 and waits shape contact pin 1.Be preferably 4 of special contact pins and be provided with one, wait shape contact pin 1 to be provided with at least one; Special contact pin 4 is arranged on plastic casing 2 planes of symmetry 5 outsides; Deng shape contact pin 1 with wait that shape, size equate between the shape contact pin 1, any two adjacent spacings that wait between the shape contact pin 1 are equal.Described special contact pin 4 can be that length equates with waiting shape contact pin 1, but special contact pin 4 section radius wait shape contact pin 1 section radius greater or lesser.Described special contact pin 4 also can be that length equates with waiting shape contact pin 1, but special contact pin 4 is respectively circular and square with the cross section of waiting shape contact pin 1.Described special contact pin 4 can also be identical with the geomery that waits shape contact pin 1, is greater than or less than spacings between the two adjacent contact pins such as shape such as grade 1 but special contact pin 4 is adjacent the spacing that waits between the shape contact pin 1.As prior art, for not cooperated with winding displacement, socket can make mistakes, be provided with guide groove 3 at plastic casing 2 openings two avris of flute profile.

As a kind of anti-anti-inserted socket preferred embodiment one of Fig. 2, it comprises a plastic casing 2 and six roots of sensation contact pin, and contact pin is fixed on (contact pin is preferably copper contact pin) on the plastic casing 2 equally spacedly by certain distance.Wherein to play second contact pin be that size becomes big special contact pin 4 relatively on a left side, and the consistent size of other all contact pins 1 wait shape contact pin 1.Thereby realize asymmetric contact pin structure about the plastic casing 2 center planes of symmetry 5.

As a kind of anti-anti-inserted socket preferred embodiment two of Fig. 3, it comprises a plastic casing 2 and six roots of sensation contact pin, and contact pin is fixed on (contact pin is preferably copper contact pin) on the plastic casing 2 equally spacedly by certain distance.Wherein a left side is played the 3rd contact pin and is shaped as columniform special contact pin 4, and the contact pin such as shape such as grade 1 that is shaped as common cube cylindricality of other all contact pins.Thereby realize asymmetric contact pin structure about plastic casing 2 planes of symmetry 5.

As a kind of anti-anti-inserted socket preferred embodiment three of Fig. 4, it comprises a plastic casing 2 and six roots of sensation contact pin, contact pin is fixed on equally spacedly by certain distance on the aperture of plastic casing 2 (contact pin is preferably copper contact pin), wherein a left side second contact pin is special contact pin 4, though geomery is consistent with other contact pin, the spacing that the 3rd contact pin played on itself and a left side be greater than other shape contact pin 1 such as adjacent between spacing.Thereby realize asymmetric contact pin structure about plastic casing 2 planes of symmetry 5.

The mutual asymmetric implementation method of contact pin of certain described plane of symmetry left and right sides also can be to make contact pin integral body that position secundly side in plastic casing is set, but this mode only can prevent the misconnection that socket is turned round one 180 degree.

The utility model adopts the asymmetric contact pin design concept about the plastic casing plane of symmetry, shape, size or change by changing a contact pin in the socket be the spacing of certain two adjacent contact pin wherein, thereby effectively avoids the generation of present socket anti-inserted phenomenon on PCB.For two PCB jacks with same pin number (pin count), can select two to discern socket and connect which jack on earth at diverse location place contact pin shape, size or the different socket of spacing, stop the misplug phenomenon; For example, two all is the socket of seven pins, second contact pin shape difference of a socket, the shape of the 3rd contact pin of another socket is inconsistent, like this, two socket contact pins can not insert another PCB jack, the generation of having stopped the phenomenon of socket misplug fully.

Claims

1. a kind of anti-anti-inserted socket, the plastic casing (2) that comprises the flute profile of socket, plastic casing (2) is the left-right symmetric structure about the plane of symmetry (5), be embedded with at least two contact pins by plastic casing (2) bottom surface to groove, it is characterized in that: the axle center of described each contact pin is parallel to each other and is in the same plane, this plane is vertical with the plane of symmetry (5), and the contact pin of the plane of symmetry (5) left and right sides is asymmetric mutually.

2. a kind of anti-anti-inserted socket according to claim 1 is characterized in that: described contact pin is divided into shape contact pins (1) such as the different contact pin of a Gent (4) and at least one; Special contact pin (4) is arranged on plastic casing (2) plane of symmetry (5) outside; Deng shape contact pin (1) with wait that shape, size equate between the shape contact pin (1), any two adjacent spacings that wait between the shape contact pin (1) are equal.

3. a kind of anti-anti-inserted socket according to claim 2 is characterized in that: described special contact pin (4) length equates with waiting shape contact pin (1), but special contact pin (4) section radius waits shape contact pin (1) section radius greater or lesser.

4. a kind of anti-anti-inserted socket according to claim 2 is characterized in that: described special contact pin (4) length equates with waiting shape contact pin (1), but special contact pin (4) is respectively circular and square with the cross section of waiting shape contact pin (1).

5. a kind of anti-anti-inserted socket according to claim 2, it is characterized in that: described special contact pin (4) is identical with the geomery that waits shape contact pin (1), is greater than or less than spacings between the two adjacent shape contact pins such as grade (1) but special contact pin (4) is adjacent the spacing that waits between the shape contact pin (1).

6. according to each described a kind of anti-anti-inserted socket of claim 1 to 5, it is characterized in that: the plastic casing of described flute profile (2) edge of opening also is provided with guide groove (3).