CN2145459Y

CN2145459Y - Socket of printing circuit board

Info

Publication number: CN2145459Y
Application number: CN 92232079
Authority: CN
Inventors: 李志达
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-07
Filing date: 1992-09-07
Publication date: 1993-11-03
Anticipated expiration: 2002-09-07

Abstract

The utility model relates to a socket of a printing circuit board, which is an improved socket structure used for increasing clamping force to enable insertion to be labor-saving and steady. The utility model comprises a case, a groove on the case, terminal clip jacks arranged at both sides of the groove in pairs and terminal clips, wherein the terminal clips are provided with convex cambered clamping parts which can be arranged on different horizontal lines on groove faces on both sides of the groove. The lower ends of the clamping parts are lean-stop parts which are butted on the inner side walls of the jacks and plug pin parts exposed out of the lower part of the case. The upper ends of the clamping parts are turned outward to form turning parts and bunt-stop parts extending to bunt the inner side walls of the jacks. A parting beat is arranged between plug pins to prevent the short circuit of soldering tin. Both ends of the case are provided with metal plugs with bended clamping and stopping parts.

Description

Socket of printing circuit board

The utility model relates to a kind of Elecrical connector, relates to a kind of plug socket of printed circuit board (PCB) or rather.

The plug socket of printed circuit board (PCB), comprise housing, fluted on the housing, in the terminal intermediate plate jack that arrange in pairs the groove both sides terminal intermediate plate is arranged, the clamping part that the terminal intermediate plate is given prominence at groove both sides groove face with arc closely contacts the printed circuit board (PCB) that is plugged in the groove, reaches the energising purpose.The position that the terminal intermediate plate exposes the housing below forms pin.There is latch at the plug socket two ends, can be fixed on the circuit substrate by the pin of latch and terminal intermediate plate.

Because the terminal intermediate plate of prior art, when inserting printed circuit board (PCB), generally have only two load-carrying surface between terminal intermediate plate and housing, one of them still is unsettled, thereby the terminal intermediate plate very easily breaks away from its fixed position, distortion, atrophy even come off, and have that printed circuit board (PCB) is difficult for inserting, the shortcoming of effort.Because spacing is less between each terminal intermediate plate pin, the phenomenon of scolding tin short circuit is often arranged, and with the plastics latch of plug socket housing once-forming, often have fracture, the situation of modification takes place.

The purpose of this utility model is to improve the structure, the particularly structure of terminal intermediate plate of circuit board plug-and-socket seat, makes it to have that chucking power is big, structure firm, the characteristics such as laborsaving of pegging graft, and no scolding tin short circuit between pin, latch are firm.

Plug socket of the present utility model, comprise housing, groove on the housing, terminal intermediate plate jack and the terminal intermediate plate thereof that arrange in pairs the groove both sides, described terminal intermediate plate has protrusion on the groove face of groove both sides, the arc clamping part that is used for tight contact print circuit board conducting strip, terminal intermediate plate clamping part lower ends downward is extended suitable length and can be propped up the madial wall of described housing terminal intermediate plate jack, formation becomes pin portion by ending portion and exposing the housing below, it is characterized in that described terminal intermediate plate clamping part upper end is to turning up, extend suitable length downwards after the crooked turnover and form the stop section that can prop up described housing terminal intermediate plate jack madial wall.

Describe structure of the present utility model in detail below in conjunction with the embodiment accompanying drawing.In order to clearly demonstrate the feature of this structure, adopt Fig. 2 to Fig. 4 that the structure of plug socket in the prior art and the drawback of existence thereof are described.

Accompanying drawing 1 is the grafting situation schematic diagram of plug socket and printed circuit board (PCB).

Accompanying drawing 2 is an A-A line cutaway view among Fig. 1, i.e. the structural representation of plug socket the first terminal intermediate plate in the prior art.

Accompanying drawing 3 is a B-B line cutaway view among Fig. 1, i.e. the structural representation of plug socket the 2nd terminal intermediate plate in the prior art.

Accompanying drawing 4 is a plug socket bottom terminals pin situation schematic diagram in the prior art.

Accompanying drawing 5 is the structural representation of the utility model plug socket the 1st terminal intermediate plate.

Accompanying drawing 6 is the structural representation of the utility model plug socket the 2nd terminal intermediate plate.

Accompanying drawing 7 is the utility model plug socket bottom terminals pin situation schematic diagram.

Accompanying drawing 8 is the utility model plug socket latch structure schematic diagram.

Referring to accompanying drawing 1, on the housing 21 of plug socket 2 fluted 23, printed circuit board (PCB) 1 can be inserted in the groove 23, one socket hole 25 is arranged on groove two side bodies, terminal intermediate plate 26 is arranged in the jack, and the terminal intermediate plate that protrudes from housing 21 belows is a pin 24, and there is latch 22 at the housing bottom two ends, the conducting strip 11 of printing contacts with the retaining part that protrudes at groove inner terminal intermediate plate on the printed circuit board (PCB) 1, forms to be electrically connected.Usually, terminal intermediate plate in the plug socket, its retaining part, a pair of clamping printed circuit board inserts the top of section, another inserts the below of section to clamping printed circuit board, sequence alternate is arranged, respectively called after the first terminal intermediate plate such as Fig. 2, structure shown in Figure 5 and the second terminal intermediate plate such as Fig. 3, structure shown in Figure 6.Make printed circuit board (PCB) be subjected to upper and lower two row's clampings of strength and more firm.

Referring to accompanying drawing 2, the first terminal intermediate plate 3 in the jack, by the pin portion 32 of exposing the plug socket below, against housing 21 jacks 25 madial walls by ending portion 33, the arc clamping part 31 that protrudes from groove 23 both sides groove faces constitutes with the stop section that holds piece 23A 34 of withstanding groove 23 opening both sides, pin portion 32 with by 33 in portion only a turning is arranged.

When printed circuit board (PCB) 1 inserts in the groove 23 of plug socket 2, with clamping part 31 extrapolations, make the terminal intermediate plate slight curving, utilize its bending stress to clamp printed circuit board (PCB) 1, right its stressed fulcrum has only by ending portion 33 and stop section to be located for 34 liang, and the stop section is free end, very easily breaks away from the situation that its fixed position becomes dotted line among the figure.

Referring to accompanying drawing 3, the second terminal intermediate plate 4 in the jack, by the pin portion 42 that protrudes in the plug socket below, against housing 21 jacks 25 interior sidewall surface by ending portion 43, protrude in the arc clamping part 41 of groove 23, and the turning point 44 that connects by ending portion and clamping part constitutes, because clamping part 41 is big with the angle of groove 23 direction of insertion, when inserting printed circuit board (PCB) 1, cause the atrophy of second terminal intermediate plate depression to become among the figure shown in the dotted line, the lighter can't clamping, weight person's terminal intermediate plate that fractures, and only have by ending portion, turning point two place's stress points.

Referring to accompanying drawing 4, the spacing t of the sub-intermediate plate pin of adjacent both ends portion has only 0.3～0.5mm, very easily causes scolding tin clout 33.43 short

circuit pin portions

32,42.

Referring to accompanying drawing 5, the first terminal intermediate plate 5 is by pin portion 52, by ending portion 53, clamping part 51, turning point 54 and stop section 55 constitute, after 52 bendings of pin portion, enter in the plug socket the first terminal intermediate plate jack 25, become shell 21 jacks 25 madial walls that reclining by ending portion 53, extend to groove 23 then, become the arc clamping part 51 that protrudes from groove 23, extend upward again but do not form the terminal point end, but the outwards turnover that holds behind the piece 23A again that props up groove 23 opening parts becomes turning point 54, its latter end becomes the stop section 55 that props up shell jack 25 interior sidewall surface, after printed circuit board (PCB) 1 inserts groove 23, can be by 5A, 5B, 5C bears at three places its thrust to clamping part 51, thereby clamping is more firm.

Referring to accompanying drawing 6, the second terminal intermediate plate is by pin portion 62, by ending portion 63, clamping part 61A, 61B, turning point 64 and stop section 65 constitute, the same with the first terminal intermediate plate 5, after 62 bendings of pin portion, enter in the pin base second terminal intermediate plate jack 25, become shell 21 jacks 25 madial walls that reclining by ending portion 63, extend to groove 23 then, become the arc clamping part 61A that protrudes from groove 23,61B, extend upward again and prop up after groove 23 opening parts hold piece 23B, outwards turnover becomes turning point 64 again, and its latter end becomes the stop section 65 that props up shell jack 25 internal faces, after printed circuit board (PCB) 1 inserts groove 23, can be by 6A, 6B, 6C bears at three places it to clamping part 61A, the thrust of 61B, more because the left side of pair of terminal intermediate plate, right clamping part 61A, 61B has a height difference H, makes chucking power not on same horizontal line, because of need not to overcome simultaneously the strength of two clamping parts, thereby it is laborsaving to peg graft, chucking power is big, and clamping is firm.

Referring to accompanying drawing 7, improvement for the utility model pin terminals, there is the partition 27 that is connected as a single entity with housing 21 in 52,62 in the pin portion of first and second two-terminal intermediate plate 5,6, protrudes from outside the plug socket bottom surface, can avoid the pin portion of each terminal intermediate plate of scolding tin clout short circuit.

Referring to accompanying drawing 8, be the improvement of the utility model plug socket latch, the fastener 71 of a bending is arranged on the latch 7, can be connected in the pin hole of circuit substrate.Latch 7 is made with metal material, can reduce the probability that latch fractures, and make peg graft firm.

The utility model has the minimizing disqualification rate to the plug socket architecture advances of opposite end sub-folder sheet particularly, reduces that intermediate plate comes off, atrophy, increase the characteristics such as intermediate plate chucking power, and make peg graft easy, laborsaving, the pin section of each the terminal intermediate plate not frangibility of tin sweat(ing) and latch of can not condensing, it is firm to peg graft.

Claims

1, a kind of plug socket of printed circuit board (PCB), comprise housing, groove on the housing, terminal intermediate plate jack and the terminal intermediate plate thereof that arrange in pairs the groove both sides, the latch at housing bottom two ends, the terminal intermediate plate comprises the first terminal intermediate plate and the second terminal intermediate plate that alternating sequence is arranged, described terminal intermediate plate has protrusion on the groove face of groove both sides, the arc clamping part that is used for tight contact print circuit board conducting strip, terminal intermediate plate clamping part lower ends downward is extended suitable length and can be propped up the madial wall of described housing terminal intermediate plate jack, formation becomes pin portion by ending portion and exposing the housing below, it is characterized in that described terminal intermediate plate clamping part upper end is to turning up, extend suitable length downwards after the crooked turnover and form the stop section that can prop up described housing terminal intermediate plate jack madial wall.

2, the plug socket of printed circuit board (PCB) according to claim 1 is characterized in that described every pair second terminal intermediate plate, and its arc clamping part that protrudes on the groove face of groove both sides is one high and one low, not on same horizontal line.

3, the plug socket of printed circuit board (PCB) according to claim 1 and 2 is characterized in that the sub-intermediate plate of adjacent both ends exposes between the pin portion of housing below, and the partition that is connected as a single entity with housing and exceeds the housing bottom plane is arranged.

4, the plug socket of printed circuit board (PCB) according to claim 1 is characterized in that the latch at described housing bottom two ends is metallic latches, but has the crooked fastener of clamping.