Summary of the invention
The main object of the present invention is to provide a kind of keyboard pcb detection system detected for light blocking module
System, and whether the back light that can detect keyboard pcb simultaneously can operate normally.
For up to purpose above-mentioned, the present invention provides a kind of keyboard pcb detection system, to detect keyboard pcb, electricity
Road plate has multiple photocells and corresponding multiple light receiving elements, system include:
First jig has multiple first grooves, and the first groove is to accommodate photocell and light receiving element;
Second jig has multiple detection switch;And
Computer is for electrically connecting to the keyboard pcb and executes detection program;
Wherein, the first jig and the second jig detect program to control photocell to clamp keyboard pcb
Emit light to light receiving element, program is detected to measure light-receiving in path of the detection switch to block or be connected light
The variation of the voltage value of element, and generate the detection record for corresponding to keyboard pcb.
Further comprise compressing plate in above-mentioned preferred embodiment, compresses plate with multiple press blocks, press block is used
To compress detection switch.
In above-mentioned preferred embodiment, wherein keyboard pcb further comprises multiple back light units, and the second jig
With multiple convergent holes to accommodate and cover back light unit.
In above-mentioned preferred embodiment, wherein convergent hole has multiple light focusing units, and light focusing unit is to agglomerate backlight
The light that unit is launched.
Further comprise image acquiring module in above-mentioned preferred embodiment, detects program to control backlight list
Member carry out it is luminous, and control image acquiring module be obtained from light focusing unit sending light image.
In above-mentioned preferred embodiment, wherein detection program carries out coloration comparison to light image, and according to coloration ratio
It is recorded to detection is generated.
In above-mentioned preferred embodiment, wherein computer includes display device, and display device is to show detection program
Detection interface.
In above-mentioned preferred embodiment, wherein detection interface includes that keyboard pressing detection interface and back light detection connect
Mouthful.
It further comprise cloud server in above-mentioned preferred embodiment, detection program can be wired or wireless
The database that mode transmits detection record to cloud server is stored.
It further comprise price labeling in above-mentioned preferred embodiment, detection process abstract factory machine is printd bar code mark
Label, and bar-code label includes the information of the detection record of corresponding keyboard pcb.
Specific embodiment
Advantages of the present invention and feature and reach its method will be carried out referring to illustrative examples and drawings it is more detailed
It describes and is easier to understand.However, the present invention can realize in different forms and not it is understood that being only limitted to set forth herein
Embodiment.On the contrary, these provided embodiments will make the disclosure more thorough for skilled artisan
With convey the scope of the present invention comprehensively and completely.
Firstly, please referring to shown in Figure 1A, Figure 1A is keyboard pcb detection system provided by the present invention.In Figure 1A,
The keyboard pcb detection system 1 include: the first jig 10, the second jig 20, compress plate 30, image acquiring module 40,
Computer 50, display device 60, price labeling 70, cloud server 80 and camera bellows D, computer 50 respectively with image acquiring module
40, display device 60 and price labeling 70 are electrically connected.Wherein, the first jig 10 has multiple first grooves 11, the second jig 20
It include: multiple convergent holes 22 and multiple second grooves 23.Wherein, it is provided with a light focusing unit 220 in convergent hole 22, and optically focused list
Member 220 can are as follows: optical fiber (optical fiber) or collector lens.Second groove 23 is then pressed to accommodate analog key
The detection switch 21 of pressure.Compress plate 30 and be located at the top of the second jig 20, and compress then have on a surface of plate 30 it is multiple to
Compress the press block 31 of detection switch 21.Computer 50 is then to store and execute a detection program 51.Camera bellows D is then to accommodate
First jig 10, the second jig 20 compress plate 30 and image acquiring module 40, and isolated environment light, make electronics to be detected
Device can not be by the interference of ambient light.
Please continue to refer to Figure 1B, Figure 1B is showing for the keyboard pressing detection of keyboard pcb detection system provided by the present invention
It is intended to.In Figure 1B, keyboard pcb 90 is first electrically connected with computer 50, is kept detection program 51 controllable and is detected keyboard electricity
The operation of road plate 90.On one surface of keyboard pcb 90 with it is multiple as push button signalling triggering photocells 91 and with
Its corresponding multiple light receiving element 92, wherein the photocell 91 of keyboard pcb 90 can be a kind of light emitting diode
Unit (Light-Emitting Diode, LED), and light receiving element 92 can be optotransistor or photo resistance.Keyboard circuit
Then there are multiple back light units 93 for key light emitting on another surface of plate 90.
It is possible, firstly, to which keyboard pcb 90 is placed on the first jig 10 by manual or automatic mode, wherein first
Groove 11 makes photocell 91 and light receiving element 92 to accommodate photocell 91 and corresponding light receiving element 92
It can be in not by among the enclosure space of external interference.The detection program 51 of computer 50 is then sent out to control photocell 91
Light is penetrated to light receiving element 92.Then can in a manner of manual or automatic by the second jig 20 be placed in keyboard pcb 90 it
On, form the form with the first jig 10 and the second jig 20 clamping keyboard pcb 90, wherein the second of the second jig 20 is recessed
The position of slot 23 is corresponding with the position of the first groove 11 of the first jig 10, make detection switch 21 can to photocell 91 and
Light receiving element 92 is blocked or is connected, and the detection program 51 in subsequent computer 50 then further measures light receiving element 92
Voltage value variation.And the convergent hole 22 on the second jig 20 is then to accommodate and be covered on back light unit 93.
Then, Fig. 2A to 2B is please referred to, Fig. 2A to 2B is the sectional view of the first embodiment of keyboard pressing of the present invention detection.
In Fig. 2A, detection switch 21a has a switch keycap 210a and detection column 211a, then has a detection hole in the second groove 23
231.There are multiple key holes 94, wherein detection hole 231 can be mutually aligned with key hole 94, make to detect on keyboard pcb 90
The detection column 211a of switch 21a can be arranged in simultaneously among detection hole 231 and key hole 94, and can be arranged in the second groove 23
One elastic element (is not shown in the drawing), makes detection switch 21a can be in shift reciprocately in the second groove 23.Then, can it is artificial or
Automatic mode, which controls, compresses plate 30, and the press block for compressing plate 30 31 is made to compress the switch keycap 210a of detection switch 21a.
In Fig. 2A, when the press block 31 for compressing plate 30 does not compress downwards, the key of detection switch 21a simulating keyboard is not
The state being pressed, the light L that detection program 51 controls that photocell 91 is launched at this time can be by corresponding light-receiving member
Part 92 is received.Then, Fig. 2 B is please referred to, when the press block 31 for compressing plate 30 compresses downwards, the detection column of detection switch 21a
211a then across the key hole 94 of keyboard pcb 90 and is protruded from photocell 91 and light receiving element 92, with whereby
The state that the key of simulating keyboard is pressed.At this point, the light L that photocell 91 is launched then is detected column 211a resistance
It is disconnected, therefore light receiving element 92 can not receive light L.The detection program 51 of subsequent computer 50 then measures light receiving element 92
It is not detected when column 211a is blocked in light L and light L is detected the variation of voltage value between the two when column 211a is blocked, with whereby
Determine whether photocell 91 and light receiving element 92 can operate normally, and generates a test record according to test result.Separately
On the one hand, can be controlled in a manner of manual or automatic compress plate 30 press block 31 compress switch keycap 210a degree, whereby
Blocking degree of the control detection column 211a to the path of light L.For example, when detection column 211a does not block the path of light L,
Detection program 51 measures the voltage value of light receiving element 92 at this time, and judges whether it meets production specification;Then, column is detected
211a declines and blocks the path of 1/4 light L, detects program 51 at this time and measures the voltage value of light receiving element 92, and judges
Whether it meets production specification;Followed by detection column 211a declines and block the path of 1/2 light L, detects program 51 at this time
The voltage value of light receiving element 92 is measured, and judges whether it meets production specification;Then, detection column 211a declines and blocks 3/
Program 51 is detected at this time and measures the voltage value of light receiving element 92, and judges whether it meets production rule in the path of 4 light L
Lattice.Finally, detection program 51 is again according to keystroke driving range of the voltage value as keyboard pcb 90 measured by each measurement
The foundation of calibration, and by the microcontroller (Microcontroller, MCU) of measured voltage value write-in keyboard pcb 90
Among (being not shown in the drawing).
Fig. 3 A to 3C is please referred to, Fig. 3 A to 3C is the sectional view of the second embodiment of keyboard pressing of the present invention detection.Yu Tu
In 3A, detection switch 21b has a switch keycap 210b, detection column 211b and sleeve member 212b.Wherein detection column 211b has
One can allow the first loophole 2110b that light penetrates.Sleeve member 212b is then fixed on detection hole 231 and passes through key hole 94, and
It protrudes between photocell 91 and light receiving element 92.Sleeve member 212 is for a hollow structure and to accommodate detection column
211b, and sleeve member 212 protrudes from the tool of one end between photocell 91 and light receiving element 92 there are two corresponding the
Two loophole 2120b.
Fig. 3 B is please referred to, detection switch 21b is sheathed among sleeve member 212 by detecting column 211b, and by being set to
Elastic element (being not shown in the drawing) in second groove 23 makes detection switch 21b can be in shift reciprocately in the second groove 23.It compresses
The press block 31 of plate 30 is then to compress the switch keycap 210b of detection switch 21b.
Please continue to refer to Fig. 3 B, when the press block 31 for compressing plate 30 does not compress downwards, detection switch 21b simulating keyboard
The state that key is not pressed detects the light L that the control photocell 91 of program 51 is launched at this time and crosses second thoroughly in break-through
After unthreaded hole 2120b, then it is detected column 211b and blocks, therefore light receiving element 92 can not receive light L.Then, figure is please referred to
3C, when the press block 31 for compressing plate 30 compresses downwards, the state that the key of detection switch 21b then simulating keyboard is pressed, inspection
The the first loophole 2110b surveyed on the detection column 211b of switch 21b is then moved to the second loophole 2120b with sleeve member 212b
Corresponding position, the light L that photocell 91 is launched at this time is then switched on, and sequentially penetrates the second loophole
2120b, the first loophole 2110b and corresponding another second loophole 2120b, therefore light receiving element 92 can receive
Light L.The detection program 51 of computer 50 then measure light receiving element 92 in light L be detected column 211b block when and light L
The variation of voltage value between the two when switched on, to determine whether photocell 91 and light receiving element 92 can normally be transported whereby
Row, and a test record is generated according to test result.
Then, referring to Fig. 4, Fig. 4 is showing for the back light detection of keyboard pcb detection system provided by the present invention
It is intended to.In Fig. 4, after the detection of the keyboard pressing of keyboard pcb detection system to be done, can in a manner of manual or automatic incite somebody to action
Compress plate 30 removal, detection switch 21 can be resetted by elastic element (being not shown in the drawing) at this time, and revert to not by
The state of pressing.Then, the detection program 51 of computer 50 then controls single one or more back light units 93 and carries out luminous, optically focused
The light that then further cohesion back light unit 93 is launched of unit 220.Then, detection program 51 controls image acquiring module
40 are obtained from the light image of the sending of light focusing unit 220, and carry out coloration comparison to acquired light image.Complete keyboard
After pressing detection and back light detection, the second jig 20 can be removed, and in a manner of manual or automatic with manual or automatic
Mode takes out the keyboard pcb 90 being placed on the first jig 10.
Please continue to refer to Fig. 4, when carrying out back light detection, for example, if back light unit 93 is a kind of RGB
The controllable single one or more back light units 93 of trichromatic LED module, first detection program 51 issue feux rouges, and then image obtains
Modulus block 40 starts to be obtained from the red light image that single one or more light focusing units 220 issue, and then detecting program 51 will
The acquired red light image red standard colorimetric built-in with detection program 51 is identified and is compared, to judge to detect journey
Whether single one or more back light units 93 that sequence 51 is controlled meet red color standard;Then, detection program 51 controls
Single one or more back light unit 93 issues green light, and image acquiring module 40 then starts to be obtained from single one or more light focusing units
The 220 green light images issued then detect program 51 acquired green light image and detection program 51 is built-in
Green standard coloration is identified and is compared, whether to judge to detect single one or more back light units 93 that program 51 is controlled
Meet the color standard of green;Followed by detection program 51 controls single one or more back light units 93 and issues blue light, and image obtains
Modulus block 40 then starts to be obtained from the blue ray image that single one or more light focusing units 220 issue, and then detects program 51
The acquired blue ray image blue standard colorimetric built-in with detection program 51 is identified and compared, to judge to detect
Whether single one or more back light units 93 that program 51 is controlled meet the color standard of blue;Finally, detection program 51 is controlled
The single one or more back light units 93 of system issue white light, and image acquiring module 40 then starts to be obtained from single one or more optically focused lists
The white light image that member 220 issues then detects program 51 acquired white light image and detection program 51 is built-in
White standard coloration identified and compared, be with the single one or more back light units 93 for judging that detection program 51 is controlled
The no color standard for meeting white is then generated according to test result after judging whether each back light unit 93 can operate normally
One test record.On the other hand, detection program 51 also can carry out color to back light unit 93 according to the test result of back light unit 93
The correction of degree.
Fig. 5, Fig. 2A are please referred to 2B, Fig. 3 A to 3C and Fig. 4, Fig. 5 is the detection interface of keyboard pcb detection system
Schematic diagram.In Fig. 5, display device 60 has a display screen 601, to show the detection interface 510 of detection program 51.Its
In, detection interface 510 includes that keyboard pressing detection interface 511 and back light detect interface 512.Keyboard pressing detects interface
511 testing result (such as Fig. 2A to 2B or Fig. 3 A to 3C) to show keyboard pressing;Back light detects interface 512 to aobvious
Show the testing result (such as Fig. 4) of keyboard back light light source.
In Fig. 5, if the pressing of any key of keyboard is unable to operate normally or does not meet production specification, in keyboard
Pressing detection interface 511, which is shown, can not carry out normally pressing operation or not meet the key position of production specification.For example, when
When key " Q " is unable to operate normally, then highlight indication is carried out in the position of key " Q " on keyboard pressing detection interface 511, allow production
Tester on line can learn that key " Q " is unable to operate normally from display screen 601.Please continue to refer to Fig. 5, if keyboard is appointed
When the back light of one key is unable to operate normally, then luminous fortune can not be normally carried out in the back light detection display of interface 512
Capable key position.For example, it when the back light 93 of key " M " is unable to operate normally, is then connect in back light detection
The position of key " M " carries out highlight indication on mouth 512, allows the tester in producing line that can learn key " M " from display screen 601
Back light be unable to operate normally.
Please continue to refer to Fig. 5, further, if the back light 93 of key " M " is a kind of LED mould of red green blue tricolor
Block and when being unable to operate normally, is unable to operate normally if the red light source in LED module, then detects interface in back light
The position of key " M " is displayed in red to carry out highlight indication on 512;It is unable to operate normally if the green light source in LED module,
Then in the position display green of key " M " on back light detection interface 512 to carry out highlight indication;If in LED module
Blue-light source is unable to operate normally, then is displayed in blue in the position of key " M " on back light detection interface 512 eye-catching to carry out
Prompt;If in LED module red and green light source be unable to operate normally, then in back light detection interface 512 on key "
The position of M " shows yellow to carry out highlight indication;If in LED module red and blue-light source be unable to operate normally, then in
The position that back light detects key " M " on interface 512 shows purple to carry out highlight indication;If the blue in LED module
And green light source is unable to operate normally, then shows cyan to wake up in the position of key " M " on back light detection interface 512
Mesh prompt;It is unable to operate normally if red, green and the blue-light source in LED module, then detects interface in back light
The position of key " M " shows black to carry out highlight indication on 512.
Also referring to Figure 1B and Fig. 4, the detection program 51 in computer 50 can be in a wired or wireless manner by keyboard
The database 81 that the detection record of pressing detection and the detection record of back light detection are sent to cloud server 80 is stored up
It deposits, in this way, the maintenance personal of next maintenance station can download and the keyboard from the database 81 of cloud server 80 in producing line
The corresponding detection of circuit board 90 record so can carry out subsequent maintenance or assembling according to detection record.Alternatively, computer 50
In detection program 51 can control the price labeling 70 being electrically connected with computer 50 and print out the item comprising test record information
Code label 71, bar-code label 71 can be pasted on keyboard pcb 90 by the tester in producing line, next in such producing line
The maintenance personal of a maintenance station can scan bar-code label using scanning machine, corresponding with the keyboard pcb 90 to obtain whereby
Detection record so can rapidly carry out subsequent maintenance or assembling according to detection record.
Compared to the prior art, the present invention provides a kind of keyboard pcb detection system, can carry out keyboard pressing detection and
Back light detection;Therefore the invention of a present invention actually great industrial value.
The present invention as the personage Ren Shi craftsman for being familiar with this skill thinks and be it is all as modify, it is so neither de- such as attached claim institute
It is intended to protect.