CN203630298U - 96-combination COB chip detector - Google Patents

96-combination COB chip detector Download PDF

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Publication number
CN203630298U
CN203630298U CN201320833780.9U CN201320833780U CN203630298U CN 203630298 U CN203630298 U CN 203630298U CN 201320833780 U CN201320833780 U CN 201320833780U CN 203630298 U CN203630298 U CN 203630298U
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CN
China
Prior art keywords
circuit board
probe
row
fixed
cob
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201320833780.9U
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Chinese (zh)
Inventor
刘振禹
陈韶华
亓秀永
王绪金
马有明
吕振国
刘进
李军德
孙士方
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SHANDONG HUAGUAN SMART CARD CO Ltd
Original Assignee
SHANDONG HUAGUAN SMART CARD CO Ltd
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Application filed by SHANDONG HUAGUAN SMART CARD CO Ltd filed Critical SHANDONG HUAGUAN SMART CARD CO Ltd
Priority to CN201320833780.9U priority Critical patent/CN203630298U/en
Application granted granted Critical
Publication of CN203630298U publication Critical patent/CN203630298U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a 96-combination COB chip detector. The 96-combination COB chip detector comprises a rack, a circuit board installation shell and a circuit board. The 96-combination COB chip detector is characterized in that the upper part of the rack is fixedly provided with a two-way movable cylinder, the two-way movable cylinder is connected with an air pump via an air pipe, the air pipe is provided with a reversing valve, the lower end of a piston of the two-way movable cylinder is fixed with a positioning plate, the lower end of the positioning plate is fixedly provided with a probe fixing plate, the probe fixing plate is fixedly provided with probes, the rack is fixedly provided with the circuit board installation shell, the circuit board is arranged in the circuit board installation shell, and the probes are connected with the circuit board via conducting wires. Compared with the conventional COB chip testing method, the 96-combination COB chip detector is advantageous in that the quality of 96 COB chips can be detected and displayed by one step, the time and the labor are saved, the efficiency is high, the omission of detection is prevented, and the quality of the COB chips is guaranteed.

Description

96 COB chip detectors
Technical field
The utility model relates to a kind of improvement of COB apparatus for testing chip, specifically a kind of 96 COB chip detectors.
Background technology
In the production run of COB chip, its operation mainly comprises die bond, welding, detection, brush coating.Wherein, detecting is exactly that die bond, the chip that welded are carried out to Performance Detection.Owing to thering are 96 pieces of COB chips on every pcb board to be measured in producing, staff can only detect 96 pieces of COB chips on every pcb board to be measured in turn by card reader, its weak point is: owing to once can only detecting one piece of COB chip by card reader, a pcb board to be measured just need to operate 96 times, take time and effort, efficiency is lower, and exists undetected phenomenon to occur.
Summary of the invention
It is a kind of simple in structure, easy to use that the purpose of this utility model is to provide, and can accurately detect 96 COB chip detectors of 96 pieces of chips on a pcb board to be measured simultaneously at every turn.
In order to reach above object, the technical scheme that the utility model adopts is: this 96 COB chip detector, comprise frame, circuit board holder housing and circuit board, it is characterized in that: be fixed with bi-directional movable cylinder on the top of frame, bi-directional movable cylinder is connected with air pump by tracheae, on tracheae, be provided with reversal valve, piston lower end at bi-directional movable cylinder is fixed with location-plate, the lower end of location-plate is fixed with probe fixed head, on probe fixed head, be fixed with probe, in frame, be fixed with circuit board holder housing, circuit board is arranged in circuit board holder housing, probe is connected with circuit board by wire.
Described frame, is made up of base, pillar and top board, and base and top board are fixed as one by pillar.
The front panel of described circuit board holder housing is provided with 96 pilot lamp, is made as 12 row 8 and is listed as.
Described probe is made up of locating sleeve, spring and traveller, in the chamber of locating sleeve, is provided with spring, and insert in the mantle cavity of location the upper end of traveller, and locating sleeve is fixed on probe fixed head.
Described probe is provided with 96 pairs, being made as 12 row 8 is listed as, every pair of probe is divided into a probe and No. two probes, the normally opened contact of the relay of arranging with corresponding row after 12 probe series connection of every row connects, the normally opened contact of the relay of arranging with corresponding row after 8 No. two probes series connection of every row connects, after the common port series connection of the relay of 8 row arrangements, be connected with terminals of an antenna, after the common port series connection of the relay of 12 row arrangements, be connected with another terminals of an antenna, after the positive pole of the pilot lamp of every row is in series with a resistor, connect power supply, the GPIO interface of LPC2478 master controller is respectively by the negative pole of wire and 96 pilot lamp, the control end of 20 relays connects, an antenna and No. two antennas top layer that is arranged on circuit board and the bottom of symmetry respectively, the antennal interface of FM1702SL high frequency read-write chip is connected with No. two antennas, the SPI interface of LPC2478 master controller is connected with the SPI interface of FM1702SL high frequency read-write chip, the UART interface of LPC2478 master controller is connected with computing machine.
On the GPIO interface of described LPC2478 master controller, be connected with start button, start button is arranged on circuit board holder housing.
The beneficial effects of the utility model are: compared with current COB chip testing mode, disposable detection also shows the quality of 96 pieces of COB chip qualities; Time saving and energy saving, efficiency is high, does not exist undetected phenomenon to occur, and has ensured COB chip quality.
Brief description of the drawings
Fig. 1 is that structure master of the present utility model looks schematic diagram.
Fig. 2 is that schematic diagram is looked on the structure of the present utility model right side.
Fig. 3 is circuit theory schematic diagram of the present utility model.
Fig. 4 is that the structure of probe of the present utility model is analysed and observe enlarged diagram.
In figure: 1, base; 2, pillar; 3, top board; 4, bi-directional movable cylinder; 5, tracheae; 6, guidepost; 7, location-plate; 8, probe fixed head; 9, probe; 91, locating sleeve; 92, spring; 93, traveller; 10, circuit board holder housing; 11, pilot lamp; 12, reversal valve; 13, pcb board to be measured; 14, relay; 15, an antenna; 16, No. two antennas; 17, FM1702SL high frequency read-write chip; 18, LPC2478 master controller; 19, start button.
Embodiment
Make the utility model with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4.This 96 COB chip detector, comprise frame, circuit board holder housing 10 and circuit board, it is characterized in that: be fixed with bi-directional movable cylinder 4 on the top of frame, bi-directional movable cylinder 4 is connected with air pump by tracheae 5, on tracheae 5, be provided with reversal valve 12, by adjustable change valve 12, the piston of bi-directional movable cylinder 4 is moved up and down, piston lower end at bi-directional movable cylinder 4 is fixed with location-plate 7, the lower end of location-plate 7 is fixed with probe fixed head 8, on probe fixed head 8, be fixed with probe 9, in frame, be fixed with circuit board holder housing 10, circuit board is arranged in circuit board holder housing 10, probe 9 is connected with circuit board by wire.
Described frame, formed by base 1, pillar 2 and top board 3, base 1 and top board 3 are fixed as one by pillar 2, pcb board 13 to be measured is placed on the top panel of base 1, be positioned at probe 9 under, can contact with the corresponding COB chip on pcb board 13 to be measured when probe 9 moves down, thereby detect COB chip.
The front panel of described circuit board holder housing 10 is provided with 96 pilot lamp 11, being made as 12 row 8 is listed as, 96 pilot lamp 11 are corresponding with the position of 96 COB chips on pcb board 13 to be measured, like this, in the time COB chip being detected, corresponding pilot lamp 11 will show, operating personnel will judge the quality of COB chip.
Described probe 9 is made up of locating sleeve 91, spring 92 and traveller 93, is provided with spring 92 in the chamber of locating sleeve 91, and insert in locating sleeve 91 chambeies the upper end of traveller 93, and locating sleeve 91 is fixed on probe fixed head 8.
Described probe 9 is provided with 96 pairs, corresponding with 96 COB chips on pcb board 13 to be measured, being made as 12 row 8 is listed as, owing to there being two test contact points on each COB chip, every pair of probe 9 contacts with two test contact points on each COB chip respectively, every pair of probe 9 is divided into a probe and No. two probes, like this, every row just has 8 probes and 8 No. two probes, every row just have 12 probes and 12 No. two probes, the normally opened contact of the relay 14 of arranging with corresponding row after 12 probe series connection of every row connects, the relay 14 that so just has 8 row to arrange, the normally opened contact of the relay 14 of arranging with corresponding row after 8 No. two probes series connection of every row connects, the relay 14 that so just has 12 row to arrange, after the common port series connection of the relay 14 of 8 row arrangements, be connected with terminals of an antenna 15, after the common port series connection of the relay 14 of 12 row arrangements, be connected with another terminals of an antenna 15, after the positive pole of the pilot lamp 11 of every row is in series with a resistor, connect power supply, the GPIO interface of LPC2478 master controller 18 is respectively by the negative pole of wire and 96 pilot lamp 11, the control end of 20 relays 14 connects, an antenna 15 and No. two antennas 16 top layer that is arranged on circuit board and the bottom of symmetry respectively, the antennal interface of FM1702SL high frequency read-write chip 17 is connected with No. two antennas 16, the SPI interface of LPC2478 master controller 18 is connected with the SPI interface of FM1702SL high frequency read-write chip 17, the UART interface of LPC2478 master controller 18 is connected with computing machine.
On the GPIO interface of described LPC2478 master controller 18, be connected with start button 19, start button 19 is arranged on circuit board holder housing 10.
In the time using the utility model, first will be put on base 1 with the pcb board to be measured 13 of 96 pieces of COB chips, rotate reversal valve 12, the piston of bi-directional movable cylinder 4 presses down, and makes 96 pairs of probes 9 touch each self-corresponding COB chip testing district, now click start button 19, LPC2478 master controller 18 detects pressing after action of start button 19 by GPIO interface, LPC2478 master controller 18 starts poll and detects COB chip, first LPC2478 master controller 18 is by GPIO interface pilot relay 14, the relay R e1 and the 1st relay R e 9 closures that row are arranged that first make the 1st row of relay 14 arrange, select the 1st couple of probe T1-1 of the 1st row, selected the 1st COB chip of the 1st row of pcb board 13 to be measured to be connected with an antenna 15, then LPC2478 master controller 18 is by SPI interface control FM1702SL high frequency read-write chip 17, complete the test to the 1st of the 1st row the COB chip, test so successively the 2nd COB chip of the 1st row, the 3rd COB chip of the 1st row ... the 12nd the 8th of row COB chip, completes the test to 96 COB chips like this.LPC2478 master controller 18 shows result by GPIO interface control pilot lamp 11, if first COB chip of the first row is bad, first pilot lamp of the first row of pilot lamp 11 is bright state, otherwise first pilot lamp of the first row is the state extinguishing, and successively the test result of all 96 COB chips is shown on corresponding pilot lamp.LPC2478 master controller 18 uploads to PC by UART interface by the test result of 96 COB chips, can on PC, show test results.

Claims (6)

1.96 COB chip detectors, comprise frame, circuit board holder housing (10) and circuit board, it is characterized in that: be fixed with bi-directional movable cylinder (4) on the top of frame, bi-directional movable cylinder (4) is connected with air pump by tracheae (5), on tracheae (5), be provided with reversal valve (12), be fixed with location-plate (7) in the piston lower end of bi-directional movable cylinder (4), the lower end of location-plate (7) is fixed with probe fixed head (8), on probe fixed head (8), be fixed with probe (9), in frame, be fixed with circuit board holder housing (10), circuit board is arranged in circuit board holder housing (10), probe (9) is connected with circuit board by wire.
2. 96 COB chip detectors according to claim 1, is characterized in that: described frame, formed by base (1), pillar (2) and top board (3), and base (1) and top board (3) are fixed as one by pillar (2).
3. 96 COB chip detectors according to claim 1, is characterized in that: the front panel of described circuit board holder housing (10) is provided with 96 pilot lamp (11), are made as 12 row 8 and are listed as.
4. 96 COB chip detectors according to claim 1, it is characterized in that: described probe (9) is made up of locating sleeve (91), spring (92) and traveller (93), in the chamber of locating sleeve (91), be provided with spring (92), insert in locating sleeve (91) chamber the upper end of traveller (93), and locating sleeve (91) is fixed on probe fixed head (8).
5. according to 96 COB chip detectors described in claim 1 or 4, it is characterized in that: described probe (9) is provided with 96 pairs, being made as 12 row 8 is listed as, every pair of probe (9) is divided into a probe and No. two probes, the normally opened contact of the relay (14) of arranging with corresponding row after 12 probe series connection of every row connects, the normally opened contact of the relay (14) of arranging with corresponding row after 8 No. two probes series connection of every row connects, after the common port series connection of the relay (14) of 8 row arrangements, be connected with terminals of an antenna (15), after the common port series connection of the relay (14) of 12 row arrangements, be connected with another terminals of an antenna (15), after the positive pole of the pilot lamp (11) of every row is in series with a resistor, connect power supply, the GPIO interface of LPC2478 master controller (18) is respectively by the negative pole of wire and 96 pilot lamp (11), the control end of 20 relays (14) connects, an antenna (15) and No. two antennas (16) are the top layer that is arranged on circuit board and the bottom of symmetry respectively, the antennal interface of FM1702SL high frequency read-write chip (17) is connected with No. two antennas (16), the SPI interface of LPC2478 master controller (18) is connected with the SPI interface of FM1702SL high frequency read-write chip (17).
6. 96 COB chip detectors according to claim 5, is characterized in that: on the GPIO interface of described LPC2478 master controller (18), be connected with start button (19), start button (19) is arranged on circuit board holder housing (10).
CN201320833780.9U 2013-12-18 2013-12-18 96-combination COB chip detector Expired - Lifetime CN203630298U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320833780.9U CN203630298U (en) 2013-12-18 2013-12-18 96-combination COB chip detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320833780.9U CN203630298U (en) 2013-12-18 2013-12-18 96-combination COB chip detector

Publications (1)

Publication Number Publication Date
CN203630298U true CN203630298U (en) 2014-06-04

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Application Number Title Priority Date Filing Date
CN201320833780.9U Expired - Lifetime CN203630298U (en) 2013-12-18 2013-12-18 96-combination COB chip detector

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103645429A (en) * 2013-12-18 2014-03-19 山东华冠智能卡有限公司 96 connection COB (chip on board) chip detector
CN104062560A (en) * 2014-06-10 2014-09-24 海宁永力电子陶瓷有限公司 Control system for PTC withstand voltage test device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103645429A (en) * 2013-12-18 2014-03-19 山东华冠智能卡有限公司 96 connection COB (chip on board) chip detector
CN103645429B (en) * 2013-12-18 2016-03-30 山东华冠智能卡有限公司 96 COB chip detectors
CN104062560A (en) * 2014-06-10 2014-09-24 海宁永力电子陶瓷有限公司 Control system for PTC withstand voltage test device

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Granted publication date: 20140604