CN201838744U

CN201838744U - Connecting device with positioning pins

Info

Publication number: CN201838744U
Application number: CN2010202665581U
Authority: CN
Inventors: 罗敬林
Original assignee: Shenzhen Neo Photonic Technology Co Ltd
Current assignee: Shenzhen Neo Photonic Technology Co Ltd
Priority date: 2010-07-21
Filing date: 2010-07-21
Publication date: 2011-05-18
Anticipated expiration: 2020-07-21

Abstract

The utility model provides a connecting device with positioning pins. The connecting device is arranged at the upper surface and the lower surface of a printed circuit board and comprises a socket with inserting needle holes and a plug with metal inserting needles, wherein the metal inserting needles of the plug penetrate through passing holes in the printed circuit board and are inserted into the inserting needle holes of the socket. The number of the positioning pin is at least one, and the at least one positioning pin is arranged at the outer sides of the inserting needle holes; and the positioning pins are arranged according to the gaps between the inserting needle holes in the socket, the printed circuit board is provided with positioning pin holes corresponding to the positioning pins, and accurate alignment of the inserting needle holes in the printed circuit plate and metal holes in the connecting device can be realized after matching of the positioning pins and the positioning pin holes.

Description

The jockey of band alignment pin

Technical field

The utility model relates to a kind of jockey with alignment pin, particularly is used for the jockey of printed circuit board assembling and with this jockey.

Background technology

The volume of electronic device is more and more littler, function from strength to strength, printed board is meticulous day by day, therefore the dissimilar printed circuit board of polylith makes up in the electronic equipment that has been widely used in miniaturization day by day mutually, is connected accurate between the various boards, between circuit board and the chip signal of telecommunication reliably played crucial effects.

The existing applying date is on August 5th, 2004, the patent No. is 200420084585.1, patent name is in the Chinese utility model patent of " the pressure type jockey with alignment pin ", disclosed a kind of jockey with alignment pin, it has two alignment pins of the moulding of moulding, as the aligning joint construction of alignment function voluntarily is provided, is used for matching, thereby eliminates the deviation of the alignment that the tolerance accumulation causes with two mating holes of the flexible printed circuit board that is connected.The shortcoming of this jockey has two, and one is that the two ends of jockey are provided with two alignment pins, and the shared volume of alignment pin is bigger, can not satisfy the needs of now meticulous day by day electronic device; It two is, the position of alignment pin and the joint construction aimed at does not with it have concrete setting up standard yet, if just there is the deviation of skew in itself between alignment pin and the joint construction, then certainly exists deviation between jockey and the printed circuit board.

Therefore, provide a kind of position that alignment pin can accurately be set, exceed and take the interface unit position, can realize that again the alignment pin that jockey and printed circuit board accurately are connected is very necessary.

The utility model content

The utility model on the via hole that solves printed circuit board (pcb) in the prior art and the socket between the pin holes location inaccurate, metal ferrule on the plug can not be inserted in the pin holes smoothly, cause the high deficiency of PCB scrappage, provide a kind of existing product is changed to lack, accurate positioning, the jockey of reduction PCB scrappage.

For realizing above utility model purpose, the utility model provides a kind of jockey with alignment pin, this jockey is installed in the printed circuit board upper and lower surface, comprise the socket of being with pin holes and the plug of being with metal ferrule, the via hole that the metal ferrule of plug passes on the printed circuit board is inserted in the pin holes of socket.This alignment pin has one at least, be arranged at the outside of pin holes, the position of this alignment pin is set according to the gap between the pin holes on the socket, printed circuit board is provided with and the corresponding dowel hole of alignment pin, alignment pin and the accurate aligning that can realize the metal aperture on the pin holes and jockey on the printed circuit board after dowel hole cooperates.

Pin holes on the via hole of utilization disclosed jockey of the utility model and method of attachment location PCB and the socket, can guarantee accurately pin holes on the via hole alignment socket of PCB, and after Reflow Soldering, metal ferrule on the plug can be inserted in the pin holes smoothly, production line output efficient obtains big raising, and scrappage obviously reduces.

Description of drawings

Fig. 1 represents the assembling schematic perspective view of existing PCB and the used jockey of main circuit board.

Fig. 2 represents the assembling welding manner schematic diagram of existing PCB and socket.

Fig. 3 represents the end body figure of an exemplary embodiment of socket in the utility model jockey.

Fig. 4 represents the side view of an exemplary embodiment of socket in the utility model jockey.

Fig. 5 represents the stereogram of an exemplary embodiment of the utility model transfer parts.

Fig. 6 represents the isometric front view of the another exemplary embodiment of socket in the utility model jockey.

Fig. 7 represents the bottom isometric view of the another exemplary embodiment of socket in the utility model jockey.

Fig. 8 represents the stereogram of the another exemplary embodiment of the utility model jockey.

Embodiment

Describe the utility model most preferred embodiment in detail below in conjunction with accompanying drawing.

Fig. 1 represents the assembling schematic perspective view of PCB and the used jockey of main circuit board in the prior art.PCB 20 is as the transfer parts, and a side on its long limit links to each other with the optical chip (not shown) by the binding wire, and a side is provided with via hole 21, and each via hole 21 periphery is provided with metal pad 22.Main circuit board passes via hole 21 by metallic plug and is electrically connected with the optical chip generation.Jockey comprises that plug 30 and socket 10 are installed in the both sides up and down of PCB 20 respectively.Fitly arranging pin holes 11 on the socket 10, its quantity and shape are according to the quantity and the spread geometry setting of metal ferrule 31, and a side of pin holes 11 is neatly placed metal pins 12.Metal ferrule 31 is inserted in the pin holes 11 of socket 10 by via hole 21.VOA mainboard (not shown) is connected on the metal ferrule of plug 30 other ends, has just realized the electrical connection of VOA mainboard and optical chip.

Fig. 2 represents to cross in the prior art assembling mode schematic diagram of preceding PCB of Reflow Soldering and socket.Because PCB 20 sizes are little and need the binding wire, the edges of boards evenness of PCB 20 requires very high, do not allow any burr, so can't adopt the layout mode when processing PCB 20 handles, cause PCB 20 not carry out surface mounting technology (Surface Mount Technology, SMT) processing by chip mounter.Assembling mode now is to adopt anchor clamps 40 to adopt Reflow Soldering to be welded on the PCB20 socket 10 fixing backs.Anchor clamps 40 offer groove 41 and are used to clamp socket 10, and are provided with corresponding with it location shrinkage pool 42 at the two ends of groove 41 according to the position of location hole 23 on the PCB 20.Pass the location hole 23 of PCB 20 and fixedly clip to by the outer detent pin (not shown) and locate in the shrinkage pool 42, just realized on the PCB 20 location of pin holes 11 on the via hole 21 and socket 10.But because the required precision of location shrinkage pool 42 and location hole 23 is relatively low, and it is not tight with surface subsides jockey positioning relation, between via hole 21 and the pin holes 11 off normal takes place after existing reflow soldering to finish, metal ferrule 31 can not insert pin holes 11 smoothly, causes PCB 20 to scrap.

Fig. 3 and Fig. 4 represent the exemplary embodiment of socket 50 in the utility model jockey.Fig. 3 is the ground plan of socket 50, and Fig. 4 is the side view of socket 50.Socket 50 after the improvement is except being provided with paired pin holes 51 and metal pins 52 as required, also at one end 2 pairs of pin holes 55 and 2 pairs of metal pins 56 that are provided with as comprising in the circle 53 among Fig. 3 and Fig. 4 also are provided with an alignment pin 58 in the middle position of 2 pairs of pin holes more.Because the design size and the design technology of pin holes 55 and metal pins 56 are identical with metal pins 52 with original existing pin holes 51, therefore, the positioning accuracy of this alignment pin 58 is identical with the precision of jockey 50 metal pins 52.

Fig. 5 represents the transfer parts of the utility model jockey---the exemplary embodiment of PCB 60.PCB 60 after the improvement is except original via hole 61, the also at one end 2 pairs of metal pads 66 and reference column holes 68 that are provided with as comprising in the circle among Fig. 5 63 more, wherein, metal pad 66 is corresponding with the metal pins 56 of socket 50, dowel hole 68 is arranged on the central authorities of 2 pairs of metal pads 66, employing is with the identical technology setting of pad on the PCB 60 62, and dowel hole 68 is corresponding with alignment pin 58.Therefore, dowel hole 68 also has with the identical accuracy of metal pad 62.

In actual applications, in order to aim at via hole 61 and pin holes 51 better, can also carry out a little improvement, as the cross section of alignment pin 58 being arranged to circle, triangle, square, polygon etc., the cross section of the dowel hole 68 that is complementary with it also is arranged to corresponding circle, triangle, square, polygon, an alignment pin like this, only need be set just can accurately be aimed at via hole 61 and pin holes 51.Can also alignment pin 68 all be set at socket 60 two ends, also can accurately via hole 61 and pin holes 51 be aimed at.

Fig. 6, Fig. 7 represent the another exemplary embodiment of socket 70 in the utility model jockey.Fig. 6 is for seeing stereogram in the past from the front, Fig. 7 is for seeing stereogram in the past from the bottom surface.With socket 50 different be, leave a blank in the two ends of socket 70, only the technology according to pin holes 71 is provided with a pair of alignment pin 78 at the place of leaving a blank at two ends, the position of alignment pin can be arranged on the axis of two socket pin holes, 71 formation, also can be arranged on wherein on the extended line of the straight line that a socket pin hole 71 forms, just its technology and locate mode all can be continued to use the technology of pin holes 71.The shape of the cross section of alignment pin 78 also can be arranged to square, and the number of alignment pin 78 also can be reduced to one, is arranged on socket 70 end wherein.

Fig. 8 represents transfer parts in the utility model---the another exemplary embodiment of PCB 80.What they were different with PCB 60 is, the two ends of its pad 82 do not increase pad, just are provided with a pair of dowel hole 88 in the alignment pin 78 corresponding positions with socket 70, its be provided with PCB 60 in technology and first execution mode that technology is set is identical.In other application, the number of dowel hole 88, position and shape can be done corresponding adjustment according to number, position and the shape of alignment pin 78.

When assembling socket 70 and PCB 80, earlier alignment pin 78 is aimed at dowel hole 88, to determine accurate aligning between the two, and then adopt Fig. 2 anchor clamps mode to clamp, even the shrinkage pool 41 on location hole on the PCB 80 83 and the anchor clamps 40 is inaccurate, also can realize the via hole 81 on the PCB 80 and the inregister of the pin holes 71 on the socket 70, be inserted into like a cork in the pin holes 71 so that metal ferrule 31 can pass via hole 81.

Claims

1. jockey with alignment pin, this jockey is installed in the printed circuit board upper and lower surface, comprises the socket of being with pin holes and the plug of band metal ferrule, and the via hole that the metal ferrule of plug passes on the printed circuit board is inserted in the pin holes of socket; It is characterized in that: described alignment pin has one at least, be arranged at the outside of pin holes, the position of this alignment pin is set according to the gap between the pin holes on the socket, described printed circuit board is provided with and the corresponding dowel hole of described alignment pin, described alignment pin and the accurate aligning that can realize the metal aperture on the pin holes and jockey on the printed circuit board after dowel hole cooperates.

2. jockey as claimed in claim 1 is characterized in that: the cross section of described alignment pin be shaped as a kind of in circle, triangle, square, the polygon.

3. jockey as claimed in claim 1 or 2 is characterized in that: an end of described socket end pin holes is left a blank, and the place of leaving a blank is provided with alignment pin.

4. jockey as claimed in claim 1 or 2 is characterized in that: the pin holes number of described socket is more than the metal ferrule number of described plug, and the pin holes that has more is used to limit the position of alignment pin.

5. jockey as claimed in claim 4, it is characterized in that: a side of each pin holes has metal pins on the described socket, be provided with metal pad with the corresponding position of metal pins on the described printed circuit board, described metal pad comprises the metal pad that is arranged on printed board via hole one side and is used to limit the corresponding metal pad of alignment pin metal pins that pin holes is with.

6. jockey as claimed in claim 5 is characterized in that: described alignment pin is positioned at the central authorities that the pin holes that has more forms the zone.

7. jockey as claimed in claim 6 is characterized in that: the number of the described socket aperture that has more is two or four.

8. jockey as claimed in claim 7 is characterized in that: the pin holes of described socket can be single or many rows.