CN1627088A

CN1627088A - Mechanism for testing circuit boards

Info

Publication number: CN1627088A
Application number: CNA2003101225521A
Authority: CN
Inventors: 李小珍
Original assignee: Asustek Computer Inc
Current assignee: Harmony with Polytron Technologies Inc; PEGATRON TECHNOLOGY (SHANGHAI) CO., LTD.
Priority date: 2003-12-11
Filing date: 2003-12-11
Publication date: 2005-06-15
Anticipated expiration: 2023-12-11
Also published as: CN100359761C

Abstract

A test unit of a CB is used in testing the CB with at least an expanded groove on it. The test unit includes an expanded card base, an extended card and a fixing piece, among which, at least a part of the card is set in the card base, the card has a first edge with a contact zone placed at outside of the base for plugging in the groove, the contact zone is for electrically connecting the groove and the card. The fixing piece is for fixing the card on the card base.

Description

Circuit board testing mechanism

(1) technical field

High and the good circuit board testing mechanism of test fiduciary level of the relevant a kind of operating efficiency of the present invention.

(2) background technology

When circuit board was finished in production, the situation of each contact on the also necessary testing circuit plate was to guarantee perfect quality.See also Fig. 1, before detecting, the testing staff inserts expansion board 16 in the expansion slot 15 of circuit board under test 11, so that carry out ensuing testing with manual type earlier.

See also Fig. 2, Fig. 2 is the synoptic diagram of existing circuit board testing mechanism 1.The aforementioned circuit board 11 that is inserted with expansion board 16 is placed on the lower shoe 18 of circuit board testing mechanism 1.When detecting, ordering about Heaven plate 12 by the drive unit 14 of circuit board testing mechanism 1 moves down, and then the probe 10 that makes Heaven plate 12 contacts with test point 111 on the circuit board under test 11 and produces electric connection, so that carry out the detection of circuit board 11, testing result is presented on the computer screen 19, for testing staff's interpretation.

Existing detection mode has following shortcoming:

At first, circuit board 11 quantity to be detected are huge, and the expansion board 16 of detection usefulness only has several, and the testing staff must constantly pull down expansion board 16 on a slice circuit board 11 in the past, then this pulled down expansion board 16 and insert on other circuit boards to be measured 11.Be the Plug Action that constantly repeats expansion board 16 with needs, not only loaded down with trivial details but also time-consuming in the operation.In addition, expansion board 16 is a very thin laminate, and is unfavorable for that the testing staff is gripped in frequent plug operation, tends to cause testing staff's hand ache.

Secondly; expansion board 16 is inserted in the expansion slot 15 of circuit board under test 11 with manual type, it is unreliable that regular meeting takes place to insert, and causes contacting of contact between expansion board 16 and the expansion slot 15 unreliable; and then cause test result incorrect, even can damage expansion board 16.

Secondly, see also Fig. 1 again, the testing staff must remember to pull open the fastener 13 at expansion slot 15 two ends, and expansion board 16 can collide fastener 13 when inserting to avoid.Yet the testing staff forgets sometimes and pulls open fastener 13, just discovers fastener 13 when waiting to bump and is not pulled open, and causes tester's puzzlement.In addition, collision also might damage the expansion board 16 of test usefulness and tested circuit board 11, can not be indiscreet and negligent.

(3) summary of the invention

The objective of the invention is to solve the various shortcomings of existing detection mode and a kind of circuit board testing mechanism is provided, this circuit board testing mechanism comprises that a drive unit, a Heaven plate, a lower shoe, a pedestal, expand deck, an expansion board and at least one fixture.At least one part of expansion board is to place to expand in the deck, and expansion board has one first limit and one second limit, first limit and second limit are perpendicular, first limit has at least one joining zone, first limit is positioned at outside the expansion deck and first limit is for the insertion expansion slot, and joining zone is the usefulness as expansion slot and expansion board electric connection.Fixture is to be stuck on the expansion board seat in order to fixing the expansion.Expanding deck is to be fixed on the pedestal, and pedestal is installed on the plate of Heaven, and circuit board is installed on this lower shoe.Drive unit drives the Heaven plate and moves, and expansion board is inserted in the corresponding expansion slot.

Expansion board also has at least one breach, and this breach is positioned at the boundary on first limit and second limit, and at least one edge of breach is positioned at the periphery of the fastener peak of expansion slot, with avoid expansion board when inserting expansion slot and fastener bump.

From the above, the present invention replaces the action of artificial plug expansion board with circuit board testing mechanism, so efficient height not only, and fiduciary level is good, can also avoid simultaneously testing staff's fatigue, can avoid expansion board when inserting expansion slot, to bump again, so overcome the shortcoming of prior art fully with fastener.

For above-mentioned purpose of the present invention, characteristics and advantage can be become apparent, preferred embodiment cited below particularly and conjunction with figs. are elaborated.

For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.

(4) description of drawings

Fig. 1 shows the existing situation of expansion board being inserted expansion slot with manual type;

Fig. 2 is the synoptic diagram of existing circuit board testing mechanism;

Fig. 3 is the synoptic diagram of foundation circuit board testing of the present invention mechanism;

Fig. 4 shows that frock appliance of the present invention is installed on the situation of Heaven plate;

Fig. 5 is the three-dimensional exploded view according to frock appliance of the present invention (containing expansion board) and Heaven plate;

Fig. 6 is the three-dimensional exploded view according to frock appliance of the present invention and expansion board;

Fig. 7 shows expansion board of the present invention;

Fig. 8 shows that expansion board of the present invention inserts the situation of expansion slot.

(5) embodiment

See also Fig. 3, the Heaven plate 42 of the present invention's circuit board testing mechanism 4 is provided with expansion board (for example memory modules DIMM) 6 and probe 40.When detecting, circuit board 11 to be measured is placed on the lower shoe 43, ordering about Heaven plate 42 by the drive unit 44 of circuit board testing mechanism 4 then moves down, and then make expansion board 6 correspondences insert the expansion slots 15 of circuit boards 11, simultaneously probe 40 contacts with test point 111 on the circuit board 11 and produces electric connection, so that detect, testing result is presented on the computer screen 45, is made for industry personnel interpretation.

After detection was finished, drive unit 44 ordered about Heaven plate 42 and moves up, and drives the expansion slot 15 that expansion board 6 is pulled out circuit board 11, and probe 40 leaves circuit board 11 simultaneously.Hence one can see that, and in the whole operation process, the testing staff must not plug expansion board 6 with hand fully, and it is convenient many to save trouble.Because replaced the action of artificial plug expansion board 6 with machine, thus efficient height not only, and also fiduciary level is good, can also avoid testing staff's fatigue simultaneously, significantly improves the shortcoming of prior art.

How the following describes expansion board 6 is installed on the plate 42 of Heaven by a frock appliance 5:

Please consult Fig. 4 and Fig. 5 simultaneously, a frock appliance 5 can be held multi-disc expansion board 6, in the present embodiment, is to be the masterpiece explanation to hold two expansion boards 6.Heaven plate 42 is provided with an opening 47, and the width D of opening 47 can allow the expansion deck 52 of frock appliance 5 pass through, and the pedestal 51 of frock appliance 5 can't pass through opening 47 because size (width) is bigger, thereby is seated in Heaven plate 42.Utilize screw 49 to pass screw 48 and lock pedestal 51, frock appliance 5 can be fixed on the plate 42 of Heaven.

See also Fig. 6, frock appliance 5 includes a plurality of fixtures 53 and previously mentioned pedestal 51 and expands deck 52, and its detailed structure is narrated in beneath segmentation:

As shown in Figure 6, a slice expansion board 6 correspondences are installed on the expansion deck 52.Expand deck 52 and have a slotted eye 521, be used to hold the some of expansion board 6.

Expansion board 6 has 61, the first limits 61, one first limit and has at least one joining zone 62, is to be positioned to expand outside the deck 52.This first limit 61 is used to insert aforesaid expansion slot 15, and the usefulness that joining zone 62 is electrically connected with expansion board 6 as expansion slot 15.In addition, expansion board 6 also has second limit 64, and this second limit 64 is provided with buckling parts 63 perpendicular to aforesaid first limit 61 in second limit 64.

Fixture 53 has a body 531 and an end 532.Body 531 is to utilize screw 54 to be fixed in the both sides of expanding deck 52.End 532 is the trip shape, is used to catch on the buckling parts 63 of expansion board 6, expansion board 6 is fixed on expands on the deck 52.

The transversal section of pedestal 51 is a ㄇ shape haply, and forms a groove 511 in the bottom, expands deck 52 in order to hold, and utilizes screw 55 to penetrate the fixed orifice 512 at pedestal 51 tops again and the screw 522 that expands deck 52 tops is fixed.The fixed orifice 512 of pedestal 51 is lined up multiple row (classifying representative as with two among the figure), and row cooperate with distance palpus between the row on the circuit board under test 11 between the expansion slot 15 apart from d1.For example, see also Fig. 4, if the spacing d1 of expansion slot 15 is 10 centimeters on the circuit board under test 11, then row also are 10 centimeters (identical with d1) with distance between being listed as.

The following describes when inserting expansion board 6, if the testing staff forgets under the situation of the fastener 13 that pulls open expansion slot 15 two ends how the present invention prevents that expansion board 6 from colliding the fastener 13 at expansion slot 15 two ends:

Please consult Fig. 1 again, existing expansion board 16 respectively is provided with a buckling hole 17 in dual-side, and when expansion board 16 inserted expansion slots 15, fastener 13 can snap in the buckling hole 17 and fix expansion board 16.So bump when avoiding inserting, so the present invention eliminates the part of existing expansion board 16 in buckling hole 17 belows, the result and represents expansion board of the present invention with label 6 as shown in Figure 7, to be distinguished with existing expansion board 16.In detail, expansion board 6 of the present invention is provided with breach 65 on the boundary on first limit 61 and second limit 64, and this breach 65 is shaped as a rectangular aperture, the scope of this rectangular aperture by first limit 61 to buckling parts 63.Please consult Fig. 8 simultaneously, the fastener 13 of expansion slot 15 can rotate between one first extreme position 84 and one second extreme position 85, and second extreme position 85 is the peak of fastener 13 in rotary course, and at least one edge of breach 65 is positioned at the periphery of second extreme position 85 of fastener 13, with avoid expansion board 6 when inserting expansion slot 15 and fastener 13 bump.When expansion board 6 inserted expansion slot 15, fastener 13 still can rotate between first extreme position 84 and second extreme position 85.

In sum, the present invention replaces the action of artificial plug expansion board with circuit board testing mechanism, so efficient height not only, and fiduciary level is good, can also avoid simultaneously testing staff's fatigue, can avoid expansion board when inserting expansion slot, to bump again, so overcome the shortcoming of prior art fully with fastener.

Claims

1. a circuit board testing mechanism is used to test a circuit board, at least one expansion slot of configuration on this circuit board, and this expansion slot has at least one fastener, and this mechanism comprises:

One expands deck;

One expansion board, at least one part of this expansion board is to place in this expansion deck, and this expansion board has one first limit, this first limit has at least one joining zone, this first limit is positioned at outside this expansion deck and this first limit is for this expansion slot of insertion, and this joining zone is the usefulness that is electrically connected with this expansion board as this expansion slot;

At least one fixture, this fixture are to be stuck on this expansion deck in order to fix this expansion.

2. circuit board testing as claimed in claim 1 mechanism is characterized in that this fixture has a body and an end, and this expansion board also has a buckling parts, this body is fixed in this expansion deck, and this end is to contact with this buckling parts, to fix this expansion board.

3. circuit board testing as claimed in claim 2 mechanism is characterized in that this fixture is to be bolted in this expansion deck with this body, and this end is to catch on this buckling parts, makes this expansion board be fixed in this expansion deck.

4. circuit board testing as claimed in claim 3 mechanism is characterized in that this end is a trip shape.

5. circuit board testing as claimed in claim 2 mechanism is characterized in that this expansion board also has one second limit, and this second limit is in fact perpendicular to this first limit, and this buckling parts is arranged on this second limit.

6. circuit board testing as claimed in claim 1 mechanism is characterized in that this fastener is to rotate between one first extreme position and one second extreme position, for this expansion slot, this fastener has a fastener peak in rotary course.

7. circuit board testing as claimed in claim 6 mechanism is characterized in that this fastener peak is this first extreme position.

8. circuit board testing as claimed in claim 6 mechanism, it is characterized in that, this expansion board also has at least one breach, this breach is positioned at the boundary on this first limit and this second limit, and at least one edge of this breach is positioned at the periphery of this fastener peak, this breach avoid this expansion board when inserting this expansion slot and this fastener bump.

9. circuit board testing as claimed in claim 1 mechanism is characterized in that this expansion deck is a rectangular parallelepiped, and a bottom surface of this rectangular parallelepiped has a slotted eye, and this slotted eye is at least one part of holding this expansion board.

10. circuit board testing as claimed in claim 1 mechanism, it is characterized in that, also comprise a pedestal, at least one expansion deck is to be fixed on this pedestal, this pedestal is provided with at least one fixed orifice, this expansion deck also has at least one screw, screws togather at least one this expansion deck on this pedestal according to the position of at least one this fixed orifice.