CN104020066A - Printed circuit board vibration testing device and method - Google Patents
Printed circuit board vibration testing device and method Download PDFInfo
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- CN104020066A CN104020066A CN201410261909.2A CN201410261909A CN104020066A CN 104020066 A CN104020066 A CN 104020066A CN 201410261909 A CN201410261909 A CN 201410261909A CN 104020066 A CN104020066 A CN 104020066A
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- mounting plate
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- circuit board
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Abstract
The invention discloses a printed circuit board vibration testing device and method, and the circuit board vibration testing device can adjust the amplitude at any time in testing. The printed circuit board vibration testing device comprises a fixed bottom plate, a mounting plate for fixing a motor, damping springs, support columns for holding a circuit board and a power device for driving the mounting plate to vibrate, wherein the power device comprises an eccentric motor and a controller for controlling the rotation speed of the motor; the eccentric motor is directly fixedly connected with the mounting plate; the mounting plate is fixedly connected with the support columns. The motor rotates to drive the mounting plate and the support columns to vibrate, as the motor mounting plate and the fixed columns are in sliding connection with each other, the motor mounting plate can play freely up and down, and as the motor mounting plate and the vertical columns are supported by the damping springs, the whole testing device is prevented from vibrating wholly when the motor is powered on, the vibration amplitude can be adjusted at any time, the testing result is approximate to a site environment, and the reliability of a testing result is improved. Because of the simple structure, convenience in use and low price, the printed circuit board vibration testing devices can be manufactured and used in batches, and the production efficiency is greatly improved.
Description
Technical field
The present invention relates to electric field, particularly a kind of circuit board vibration test method of detecting electric element firm welding and reliability.
Background technology
Printed circuit board (PCB) is used in a large number at present, wherein there is many being mounted in to have in vibration environment, so there is very high requirement for the electronic devices and components firm welding on this class circuit board, in vibration test equipment, ubiquity equipment is difficult to a large amount of uses, power consumption is high, takies manpower, can not control the problems such as many complete equipments by a system.
If publication number is CN201892613U document, name is called a kind of vibration test equipment of printed circuit boards, this device comprises a stator, one rotor, one frame, one controller, one flat board, one excessive support, the devices such as one crane span structure, support for fixing tested printed circuit board (PCB), the electric device of driving arm vibration, propulsion system comprise linear electric motors and control the controller of linear electric motors, the stator of linear electric motors is fixedly connected with frame, the rotor of linear electric motors is fixedly connected with support, controller is connected with motor, motor direct-drive support vibrates back and forth, realization is exchanged equipment and is carried out vibration-testing.The shortcoming of this testing apparatus is that price is all more expensive, and volume is larger, at the early-stage for some, or medium-sized and small enterprises are very large burdens, and inconvenience is used on a large scale.
Summary of the invention
Goal of the invention of the present invention is in order to overcome the shortcoming of above-mentioned background technology, provides a kind of a kind of method of testing of circuit board electronic devices and components firm welding test, production and application that can be a large amount of.
Technical scheme of the present invention is: a kind of printed circuit board (PCB) vibration-testing apparatus and method of testing thereof, comprise fixed head, motor mounting plate, damping spring, place the support column of circuit board, the propulsion system of drive installation panel vibration, four jiaos of described fixed heads are vertically provided with respectively four root posts, described column top is provided with motor mounting plate, described fixed leg adopts elasticity to be connected with motor mounting plate by damping spring, described propulsion system comprise eccentric motor and motor input current controller, described eccentric motor is fixedly connected with motor mounting plate, described motor mounting plate is provided with four for placing the support column of tested circuit board, described eccentric motor is connected with the controller of controlling motor speed, described motor mounting plate and support column are fixedly linked.
Described motor mounting plate is provided with support column, and circuit-under-test plate is connected with motor mounting plate by described support column; Described support column is vertical structure, and the height of described support column is greater than the maximum height size of all elements of circuit-under-test plate, and the length of the adjustable fitting limit of described support column and width are greater than maximum length and the width dimensions that circuit-under-test plate comprises all elements; Described motor mounting plate is provided with the mounting hole that support column is installed, and the fixed orifice position on the position of described mounting hole and circuit-under-test plate can be adjusted to and match; The top of described support column adopts the fixed orifice size on taper and institute's slowdown monitoring circuit plate to match.
Printed circuit board (PCB) vibration-testing apparatus and a method of testing thereof, the method comprises the steps:
(1) fixed head, column are arranged on fixed base plate, eccentric motor and support column are fixed on motor mounting plate, by fixed leg, damping spring and motor mounting plate are fixed on column, damping spring supports motor mounting plate, fixed leg and motor mounting plate can slide by easy on and off, finally, by soldered circuit board, be placed on support column;
(2) start eccentric motor, by operation test in 4 hours, after the vibration of frequency 10 ~ 150Hz, check whether the electronic devices and components on circuit-under-test plate have bad phenomenon.
The invention has the beneficial effects as follows: the motor that this method adopts is the micro-machine of low pressure low current, has power consumption few, low-carbon environment-friendly, the little environmental protection feature that waits of noise, meets the environmental protection concept of advocating at present both at home and abroad; By changing the size of motor input current, realize motor different rotating speeds installing plate is vibrated, can carry out at any time the adjustment of amplitude and frequency, make test result better true, reliable, improved test speed and efficiency and saved great amount of cost simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Wherein: 1, fixed head, 2, column, 3, damping spring, 4, fixed leg, 5, motor mounting plate, 6, eccentric motor, 7, support column, 8, circuit-under-test plate.
Embodiment
The present embodiment is a kind of printed circuit board (PCB) vibration-testing apparatus and method of testing thereof, comprise fixed head (1), motor mounting plate (5), damping spring (3), place the support column (7) of circuit board, the propulsion system of drive installation panel vibration, (1) four jiao of described fixed head is vertically provided with respectively four root posts (2), described column (2) top is provided with motor mounting plate (5), described fixed leg (4) adopts elasticity to be connected with motor mounting plate (5) by damping spring (3), described propulsion system comprise eccentric motor (6) and motor input current controller, described eccentric motor (6) is fixedly connected with motor mounting plate (5), described motor mounting plate (5) is provided with four for placing the support column (7) of tested circuit board (8), described eccentric motor (6) is connected with the controller of controlling motor speed, described motor mounting plate (5) is fixedly linked with support column (7).
Described motor mounting plate (5) is provided with support column (7), and circuit-under-test plate (8) is connected with motor mounting plate (5) by described support column (7); Described support column (7) is vertical structure, the height of described support column (7) is greater than the maximum height size of all elements of circuit-under-test plate (8), and length and the width of the adjustable fitting limit of described support column (7) are greater than maximum length and the width dimensions that circuit-under-test plate (8) comprises all elements; Described motor mounting plate (5) is provided with the mounting hole that support column (7) is installed, and the fixed orifice position on the position of described mounting hole and circuit-under-test plate (8) can be adjusted to and match; The top of described support column (7) adopts the fixed orifice size on taper and institute's slowdown monitoring circuit plate to match.
A kind of printed circuit board (PCB) vibration-testing apparatus and method of testing thereof, the method comprises the steps: that fixed base plate, column are fixed on fixed base plate, eccentric motor and support column are fixed on motor mounting plate, by fixed leg, damping spring and motor mounting plate are fixed on column, damping spring supports motor mounting plate, fixed leg and motor mounting plate can slide by easy on and off, the effect of damping spring is that the kinetic energy producing while not allowing electric machine rotation is delivered on fixed head, and fixed head just can yet and then motion when motor rotation like this.
1, by soldered circuit-under-test plate (8), be placed on support column (7) upper, start eccentric motor (6);
When 2, eccentric motor (6) turns round, adjusting enters the size of current of eccentric motor (6), change the rotating speed of eccentric motor (6), change vibration frequency and the amplitude of circuit-under-test plate (8), firm welding degree and the soldering reliability of the electronic devices and components of the upper welding of test circuit-under-test plate (8), by test in 4 hours, after the vibration of frequency 10 ~ 150Hz, check whether the electronic devices and components on circuit-under-test plate (8) have bad phenomenon.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. a printed circuit board (PCB) vibration-testing apparatus and method of testing thereof, comprise fixed head, motor mounting plate, damping spring, place the support column of circuit board, the propulsion system of drive installation panel vibration, it is characterized in that: four jiaos of described fixed heads are vertically provided with respectively four root posts, described column top is provided with motor mounting plate, described fixed leg adopts elasticity to be connected with motor mounting plate by damping spring, described propulsion system comprise eccentric motor and motor input current controller, described eccentric motor is fixedly connected with motor mounting plate, described motor mounting plate is provided with four for placing the support column of tested circuit board, described eccentric motor is connected with the controller of controlling motor speed, described motor mounting plate and support column are fixedly linked.
2. printed circuit board (PCB) vibration-testing apparatus according to claim 1 and method of testing thereof, is characterized in that: described motor mounting plate is provided with support column, and circuit-under-test plate is connected with motor mounting plate by described support column; Described support column is vertical structure, and the height of described support column is greater than the maximum height size of all elements of circuit-under-test plate, and the length of the adjustable fitting limit of described support column and width are greater than maximum length and the width dimensions that circuit-under-test plate comprises all elements; Described motor mounting plate is provided with the mounting hole that support column is installed, and the fixed orifice position on the position of described mounting hole and circuit-under-test plate can be adjusted to and match; The top of described support column adopts the fixed orifice size on taper and institute's slowdown monitoring circuit plate to match.
3. printed circuit board (PCB) vibration-testing apparatus and a method of testing thereof, is characterized in that the method comprises the steps:
(1) fixed head, column are arranged on fixed base plate, eccentric motor and support column are fixed on motor mounting plate, by fixed leg, damping spring and motor mounting plate are fixed on column, damping spring supports motor mounting plate, fixed leg and motor mounting plate can slide by easy on and off, finally, by soldered circuit board, be placed on support column;
(2) start eccentric motor, by operation test in 4 hours, after the vibration of frequency 10 ~ 150Hz, check whether the electronic devices and components on circuit-under-test plate have bad phenomenon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261909.2A CN104020066A (en) | 2014-06-13 | 2014-06-13 | Printed circuit board vibration testing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261909.2A CN104020066A (en) | 2014-06-13 | 2014-06-13 | Printed circuit board vibration testing device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104020066A true CN104020066A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410261909.2A Pending CN104020066A (en) | 2014-06-13 | 2014-06-13 | Printed circuit board vibration testing device and method |
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| CN (1) | CN104020066A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536519A (en) * | 2014-12-16 | 2015-04-22 | 黄永怀 | Protector for computer main board capacitor |
| CN107688052A (en) * | 2017-08-18 | 2018-02-13 | 上海汽车制动系统有限公司 | A kind of brace type acoustical testing device and its method of testing |
| CN108008241A (en) * | 2017-10-19 | 2018-05-08 | 惠州市骏亚数字技术有限公司 | A kind of pcb board cold solder detector |
| CN108959013A (en) * | 2018-06-26 | 2018-12-07 | 芜湖广智天和信息技术有限公司 | A kind of computer hardware development vibration amplitude testboard |
| CN110726927A (en) * | 2019-11-01 | 2020-01-24 | 吴信任 | New energy automobile integrated circuit board test system and test method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB445887A (en) * | 1934-10-19 | 1936-04-20 | British Thomson Houston Co Ltd | Improvements in and relating to methods of and apparatus for testing the fatigue strength of material |
| CN1516997A (en) * | 2001-04-24 | 2004-07-28 | 3 | Support rack for vibratory testing of printed circuit boards |
| CN101419115A (en) * | 2007-10-22 | 2009-04-29 | 鸿富锦精密工业（深圳）有限公司 | Vibration test device |
| CN201892613U (en) * | 2010-11-29 | 2011-07-06 | 宁波菲仕运动控制技术有限公司 | Vibration test equipment of printed circuit boards |
| CN102419784A (en) * | 2011-07-28 | 2012-04-18 | 深圳市大族激光科技股份有限公司 | Design method of multiple-spindle cascading structure of PCB (printed circuit board) drilling machine |
| CN203908748U (en) * | 2014-06-13 | 2014-10-29 | 苏州博睿测控设备有限公司 | Printed circuit board vibration test device |
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2014
- 2014-06-13 CN CN201410261909.2A patent/CN104020066A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB445887A (en) * | 1934-10-19 | 1936-04-20 | British Thomson Houston Co Ltd | Improvements in and relating to methods of and apparatus for testing the fatigue strength of material |
| CN1516997A (en) * | 2001-04-24 | 2004-07-28 | 3 | Support rack for vibratory testing of printed circuit boards |
| CN101419115A (en) * | 2007-10-22 | 2009-04-29 | 鸿富锦精密工业（深圳）有限公司 | Vibration test device |
| CN201892613U (en) * | 2010-11-29 | 2011-07-06 | 宁波菲仕运动控制技术有限公司 | Vibration test equipment of printed circuit boards |
| CN102419784A (en) * | 2011-07-28 | 2012-04-18 | 深圳市大族激光科技股份有限公司 | Design method of multiple-spindle cascading structure of PCB (printed circuit board) drilling machine |
| CN203908748U (en) * | 2014-06-13 | 2014-10-29 | 苏州博睿测控设备有限公司 | Printed circuit board vibration test device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536519A (en) * | 2014-12-16 | 2015-04-22 | 黄永怀 | Protector for computer main board capacitor |
| CN107688052A (en) * | 2017-08-18 | 2018-02-13 | 上海汽车制动系统有限公司 | A kind of brace type acoustical testing device and its method of testing |
| CN108008241A (en) * | 2017-10-19 | 2018-05-08 | 惠州市骏亚数字技术有限公司 | A kind of pcb board cold solder detector |
| CN108959013A (en) * | 2018-06-26 | 2018-12-07 | 芜湖广智天和信息技术有限公司 | A kind of computer hardware development vibration amplitude testboard |
| CN110726927A (en) * | 2019-11-01 | 2020-01-24 | 吴信任 | New energy automobile integrated circuit board test system and test method |
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Application publication date: 20140903 |