CN2410648Y

CN2410648Y - Improvement of printed circuit board short-circuit or disconnection tester

Info

Publication number: CN2410648Y
Application number: CN 00200852
Authority: CN
Inventors: 林义芳
Original assignee: CISHENG ENTERPRISE Co Ltd
Current assignee: CISHENG ENTERPRISE Co Ltd
Priority date: 2000-01-20
Filing date: 2000-01-20
Publication date: 2000-12-13
Anticipated expiration: 2010-01-20

Abstract

The utility model relates to an improvement of a short/broken-circuit tester for a printed circuit board, comprising a detecting board provided with jacks corresponding to a circuit board to be measured, and a plurality of detecting needles which can be plugged in the jacks, wherein, the detecting board is divided into a sleeve board also provided with corresponding jacks and a needle bed board; the tail end of a detecting bar is provided with a fixing bar provided with a conducting wire, the outside diameter of the fixing bar is slightly smaller than the inner diameter of the jack, and a bar wall of the fixing bar is provided with a circle of flange. The detecting bar is plugged in the jack in advance, the fixing bar is clamped on the surface of the needle bed board, and then the sleeve board is jointed. The fixing bar can be fixed still by the sleeve board and the needle bed board, so that a probe plugged in a hollow inner of the fixing bar and provided with a middle piece bar can be stabilized without moving.

Description

The short out of circuit test tool improvement of printed circuit board (PCB)

The utility model is providing a kind of printed circuit board (PCB) short out of circuit test tool improvement, mainly is that detecting plate is separated into cage plate and the needle-bar plate with corresponding jack; The fixed bar of detector bar tail end then makes its external diameter be slightly less than the jack internal diameter, and the flange outside diameter at its bar wall place is then greater than the internal diameter of jack.Can be inserted and put between involutory, fixing cage plate and the needle-bar plate and maintained static so that reach this flange and be, simultaneously also correcting fixed bar, probe of planting in it is got can be firm, do not have any moving partially and each probe all reaches its predetermined detection and locatees, and need not do any action of knocking again, re-use except that saving more all detector bars to be reclaimed man-hour.

Press, see also shown in Figure 1, it is three-dimensional exploded view (detector bar 1 among the figure is through amplifying) for practising the formula measurement jig, it comprises base plate 2 with plurality of slots 21, has the needle-bar plate 3 and the detector bar 1 in order to survey of corresponding jack 30 with tested circuit board, wherein, this needle-bar plate 3 is to be set up in this base plate 2 tops by screwing togather post 20, is not hidden worn-out base plate 2 places by this needle-bar plate 3 and then is the position of slot 21; This detector bar 1 is connected in series by fixed bar 11, stage casing bar 12 and probe 13 that: tail end is provided with lead 10 to form, this probe 13 is to insert from the upper end of stage casing bar 12, but therebetween and have flexible member and make probe 13 have the characteristic of elastic telescopic, this stage casing bar 12 then can insert from the upper end of fixed bar 11, to form complete detector bar 1.

Cooperate shown in Figure 4, this detector bar 1 be inserted in needle-bar plate 3, be the jack 30 that earlier lead 10 is passed on the needle-bar plate 3, taking advantage of a situation is solidly plugged in fixed bar 11 on the jack 30 in two ways again: first kind, the external diameter of fixed bar 11 is slightly larger than jack 30 internal diameters; Second kind, the external diameter of fixed bar 11 is to be slightly less than jack 30 internal diameters, and the outer wall place of fixed bar 11 has the flange 111 that a circle is slightly larger than jack 30 internal diameters in addition.And this dual mode must be again knocked from the top end of fixed bar 11, so that forcing fixed bar 11 is filled in the jack 30 and the tool fixation, after fixed bar 11 was fixed in needle-bar plate 3, the stage casing bar 12 that again upper end has been inserted with probe 13 inserted from fixed bar 11 upper ends.Though it can reach the purpose of detection, only dual mode must knock fixed bar 11, and the fixed bar 11 after it knocks must produce multiple recovery of distortion and re-use; Moreover the circuit jack of each tested circuit board is inevitable many, and then it must knock one by one at the fixed bar on each jack 11, rather expends man-hour; The person of advancing if it knocks and has improperly slightly, except that a detector bar 1 is scrapped in meeting, more may cause test errors because of the slight deflection of fixed bar 11.

Therefore, fundamental purpose of the present utility model is to provide a kind of printed circuit board (PCB) short out of circuit test tool improvement, and it does not need to do the action of knocking detector bar again, re-uses except that saving more all detector bars to be reclaimed man-hour.

The short out of circuit test tool improvement of a kind of printed circuit board (PCB) of the utility model, it comprises that one has the detecting plate of corresponding jack with tested circuit board, reach the probe that complex root can be inserted in this jack, this detecting plate is to be separated into the also cage plate and the needle-bar plate of the corresponding jack of tool; The fixed bar of detector bar lead that tail end is provided with, its external diameter are to be slightly less than the jack internal diameter, and its bar wall is tool one a circle flange; The fixed bar of detector bar is inserted in the jack of needle-bar plate in advance, and the flange of fixed bar is to be stuck in needle-bar plate surface; Again cage plate is given involutory, be fixed in this needle-bar plate, the flange of this fixed bar is to be inserted and put and to maintain static by cage plate and needle-bar plate so that make the probe that be provided with stage casing bar of transplanting in this fixed bar hollow inside, can be firmly motionless.

Characteristic on above-mentioned purpose of the present utility model and structure thereof and the function will be illustrated according to the preferred embodiment shown in the following drawing, wherein:

Fig. 1 is for practising the three-dimensional exploded view of formula measurement jig;

Fig. 2 is the three-dimensional exploded view for the utility model measurement jig;

Fig. 3 is the three-dimensional combination figure of the utility model according to Fig. 2;

Fig. 4 is for practising the assembled state cut-away view of formula measurement jig;

Fig. 5 is the assembled state cut-away view for the utility model measurement jig.

The utility model provides the short out of circuit test tool improvement of a kind of printed circuit board (PCB), see also shown in Fig. 2,3, it is the three-dimensional exploded view that has been exaggerated for the utility model detector bar 1, it comprises base plate 2 with plurality of slots 21, has cover drafting board 4, needle-bar plate 5 and the detector bar 1 in order to survey of corresponding jack with tested circuit board, wherein, this needle-bar plate 5 is to be set up in this base plate 2 tops by screwing togather post 20, is not hidden worn-out base plate 2 places by this needle-bar plate 5 and then is the position of slot 21; And this detector bar 1 is connected in series by fixed bar 11, stage casing bar 12 and probe 13 that: tail end is provided with lead 10 to form, probe 13 is to insert from the upper end of stage casing bar 12, but therebetween and have flexible member and make probe 13 have the characteristic of elastic telescopic, this stage casing bar 12 then can insert from the upper end of fixed bar 11, can form complete detector bar 1.

Please cooperate and consult shown in Figure 5ly, this cage plate 4 and needle-bar plate 5 are the

corresponding jacks

40,50 of tool, and this

jack

40,50 is also corresponding with tested circuit board.Be positioned at the fixed bar 11 that detector bar 1 is not held, its tail end is to be provided with lead, and its external diameter is the internal diameter that is slightly less than

jack

40,50, and the bar wall of fixed bar 11 is tool one circle external diameter flanges 111 greater than

jack

40,50 internal diameters.

The fixed bar 11 of detector bar 1 is inserted in the jack 50 of needle-bar plate 5 in advance, and at this moment, the flange 111 of fixed bar 11 is to be blocked by jack 50 and be exposed to needle-bar plate 5 surfaces; Again cage plate 4 is given involutory, be fixed in this needle-bar plate 5, as shown in Figure 5, the flange 111 of this fixed bar 11 is to be inserted and put and to make fixed bar 11 be able to fully maintain static by cage plate 4 and needle-bar plate 5, so that make the probe that be provided with stage casing bar 12 13 of transplanting in these fixed bar 11 hollow inside, must firmly and not have any moving partially, and need not do any action of knocking again, more all detector bars can be reclaimed the person of re-using except that saving man-hour.

It should be noted that, no matter during plant fixed bar 11 be deflection how, as long as cage plate 4 and needle-bar plate 5 one are by involutory, fixing, this fixed bar 11 promptly can be at once by correcting, in any case and all maintaining static even never have any deflection, its easy degree and the man-hour of being saved are self-evident already; This has the probe 13 of stage casing bar and plant, and each probe 13 is all to meet its predetermined detection location, has excellent printed circuit board test effect.

In sum, the short out of circuit test tool improvement of a kind of printed circuit board (PCB) provided by the utility model, its broken through the habit formula must knock and often cause impaired scrap or can't reclaim again use and cause the deflection of detector bar and produce the disappearance of test errors, true tool novelty and progressive, the important document that really meets novel patent, the whence proposes novel patented claim in accordance with the law, requests an ancient unit of weight office and gives patent, and real is that sense is prayed.

Only the above person only is of the present utility model one preferable feasible embodiment, and the variation that utilizes the above-mentioned method of the utility model, shape, structure to do such as all should be contained in the interest field of this case.

Claims

1, the short out of circuit test tool improvement of a kind of printed circuit board (PCB), it comprises that one has the detecting plate of corresponding jack with tested circuit board, reaches the probe that complex root can be inserted in this jack, it is characterized in that:

This detecting plate is to be separated into the also cage plate and the needle-bar plate of the corresponding jack of tool; The fixed bar of detector bar lead that tail end is provided with, its external diameter are to be slightly less than the jack internal diameter, and its bar wall is tool one a circle flange; The fixed bar of detector bar is inserted in the jack of needle-bar plate in advance, and the flange of fixed bar is to be stuck in needle-bar plate surface; Again cage plate is given involutory, be fixed in this needle-bar plate, the flange of this fixed bar is to be inserted and put and to maintain static by cage plate and needle-bar plate so that make the probe that be provided with stage casing bar of transplanting in this fixed bar hollow inside, can be firmly motionless.