CN208654204U - The pin number of DIP packaging power module detects fixture - Google Patents
The pin number of DIP packaging power module detects fixture Download PDFInfo
- Publication number
- CN208654204U CN208654204U CN201821200366.3U CN201821200366U CN208654204U CN 208654204 U CN208654204 U CN 208654204U CN 201821200366 U CN201821200366 U CN 201821200366U CN 208654204 U CN208654204 U CN 208654204U
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- power module
- pin
- guide pad
- check bit
- slot
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Abstract
The utility model provides a kind of pin number detection fixture of DIP packaging power module, it is made of pedestal and the panel being placed on pedestal, generally rectangle structure, the middle part of panel inner surface is equipped with guide pad, the two sides of guide pad are equipped with pin check bit, and each pin check bit is provided with photo-electric detector；The top of pedestal offers through slot along the channeling direction of guide pad, the deep gouge for accommodating photo-electric detector is offered at the position of the middle section side wall corresponding pin check bit of through slot, the middle section of through slot is also convexly equipped with platform, and the thickness of platform is determined according to the wall thickness of the packing tube of power module；The length of platform is determined according to the needs that the detection zone of pin check bit is arranged；Wherein, the two sides of guide pad form the detection zone of two pin check bits with the inner sidewall of corresponding pedestal through slot respectively.The utility model has the following beneficial effects: simplifying structure design, labor intensity is reduced, improves detection efficiency, improves the stability and reliability of power module quality of finished.
Description
Technical field
The utility model relates to a kind of detection fixtures of power module, and in particular to a kind of DIP packaging power module is drawn
Foot quantity detects fixture.
Background technique
In electronics industry, various electronic equipments, electronic components, electronic module generally can all have external input or defeated
Interface out, and this interface have it is various, such as to the plastic row needle of edge sealing, USB, GPIB, DB9 interface, single copper post
The pin terminals etc. of composition；In the power module, the relatively common encapsulating structure for a kind of a row or multi-row pin of band；Encapsulation
With protection internal circuit, improve the insulation voltage endurance of power module, and pin inputs or output signal as providing
Interface；Production method is: universal single tin plating copper tip being manually mounted on designed PCBA, PCBA is mounted in shell
In, by potting compound that PCBA is packaged, remainder terminal leaks out outside, in order to provide input, output interface.Wherein,
PCBA is PCB hollow plate by SMT piece uploading, is formed by finished product using the processing procedures such as DIP plug-in unit and test.
Due to there is multiple terminals on each power module, the power module of DIP type encapsulation is even more to have double multiple terminals,
The power module pin number of same model, foot position are consistent, when the quantity of the power module detected every time is bigger, such as
Day, amount detection was directed to existing operation mode at 100,000 or more, even million or more, and artificial visual checks, then
There are the risks of undesirable power module finished product (mainly pin number and actual requirement be not inconsistent module) outflow；If imported
The detection device of corresponding listing, then structure is more complex, and detection project is abundant, and cost is high, wastes one's talent on a petty job；It arranges in this way a large amount of
Personnel check that the labour that then will appear offer cannot return accordingly；And it manually can not largely, for a long time, accurately
Identification module pin number.
Utility model content
In view of this, device structure can be simplified the technical problem to be solved by the present invention is to provide a kind of, and improve inspection
The pin number for surveying the DIP packaging power module of efficiency detects fixture.
In order to solve the above technical problems, the utility model provides a kind of pin number detection folder of DIP packaging power module
Tool is made of, generally rectangle structure pedestal and the panel being placed on pedestal, and the middle part of panel inner surface is equipped with guide pad,
The two sides of guide pad are equipped with pin check bit, and each pin check bit is provided with photo-electric detector；The top of pedestal is along guide pad
Channeling direction offer through slot, offered at the position of the middle section side wall corresponding pin check bit of through slot for accommodate photo-electric inspection
The deep gouge of device is surveyed, the middle section of through slot is also convexly equipped with platform, and the thickness of platform is determined according to the wall thickness of the packing tube of power module；It is flat
The length of platform is determined according to the needs that the detection zone of pin check bit is arranged；Wherein, the two sides of guide pad respectively with it is corresponding
Pedestal through slot inner sidewall formed two pin check bits detection zone.
Preferably, the guide pad of the panel, is flat shuttle shape structure, the height of guide pad by power module pin
Height determines.
Preferably, the spacing of the two sides of the guide pad of the panel and pedestal through slot inner sidewall is slightly larger than power module
The diameter of pin.
Preferably, the position of described two pin check bits is slightly staggered to be arranged.
Preferably, the photo-electric detector of the pin check bit, is made of the detection circuit of alarm and photo-electric, when
When power module passes through the pin check bit in through slot, detection circuit detects several pins of power module, is compared, when
When pin number is unqualified, control Light-emitting diode LED 1 is lighted.
Preferably, the photo-electric detector of the pin check bit, is made of the detection circuit of alarm and photo-electric, institute
Stating alarm is Light-emitting diode LED 1；The detection circuit, mainly includes photoelectric sensor and operational amplifier, and connection is closed
System is that photoelectric sensor includes light emitting diode D1 and photodiode D2, and the anode of light emitting diode D1 is connected by resistance R1
Connect feeder ear VCC, the minus earth of light emitting diode D1；The anode of photodiode D2 passes through resistance R2 connection feeder ear VCC,
The minus earth of photodiode D2；The non-inverting input terminal of operational amplifier U1 is connect with the anode of photodiode D2, operation
The anti-phase input of amplifier U1 terminates variable resistance R3, and the output end of operational amplifier U1 is connect with the counting end of counter JP1,
The input anode of operational amplifier U1 connects feeder ear VCC, input negative terminal ground connection；The counting end of counter JP1 also with shine two
The cathode of pole pipe LED1 connects, and the input anode of counter JP1 connects feeder ear VCC, input negative terminal ground connection；Light emitting diode
The anode of LED1 is also passed through capacitor C1 and is grounded by resistance R4 connection feeder ear VCC, the cathode of Light-emitting diode LED 1；Work as power supply
When module passes through slideway, photoelectric sensor detects pin, and exports corresponding voltage signal, control hair according to testing result
Optical diode LED1 is lighted, and detects underproof consequential signal with intuitive reflection.
After the pin number detection fixture of the DIP packaging power module using the utility model checks number of terminals, this
The structure design for having the beneficial effect that simplified detection device of utility model, and identified by equipment inspection, labor intensity is reduced,
It improves detection efficiency and reduces more, the defective products such as terminal less power module finished products and flow out the satisfaction for improving client to client.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of DIP packaging power module；
Fig. 2 is that the pin number of the utility model DIP packaging power module detects the three-dimensional structure diagram of fixture；
Fig. 3 is that the pin number of the utility model DIP packaging power module detects the main view of fixture；
Fig. 4 is the three-dimensional structure diagram that the pin number of the utility model DIP packaging power module detects the pedestal of fixture；
Fig. 5 is the three-dimensional structure diagram that the pin number of the utility model DIP packaging power module detects the panel of fixture；
Fig. 6 is the pcb board structure chart of the photo-electric detector of the utility model；
Fig. 7 is the circuit diagram of the photo-electric detector of the utility model.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, below with reference to attached drawing and
The technical solution of the utility model is described in detail in specific embodiment.
One, power module and power module pin schematic diagram explanation, as shown in Figure 1:
The power module of DIP type encapsulation, each power module at least 7 or more pin terminals, portioned product model
The pin of power module is even more.
Two, the three-dimensional structure diagram of the pin number detection fixture of DIP packaging power module, as shown in Figure 2；
The pin number of the utility model DIP packaging power module detects fixture, by pedestal 10 and the face being placed on pedestal
Plate 30 forms, and the middle part of panel 30 is equipped with guide pad 31, and the top of pedestal 10 offers through slot 11 along the channeling direction of guide pad；
The two sides of guide pad 31 are equipped with pin check bit 41.As shown in figure 3, being the number of pins of the utility model DIP packaging power module
The main view of amount detection fixture, structure, which mainly forms, includes:
1. pedestal 10 as shown in Figure 4: base body is rectangle structure, and the top of pedestal 10 is along the guidance side of guide pad
To offering through slot 11, the cross sectional shape of through slot 11 be it is rectangular, to provide the track that power module slides through as slideway.It is logical
Deep gouge 12 is offered at the position of the middle section side wall corresponding pin check bit of slot 11, to accommodate the photo-electric detection of pin check bit
Device.The middle section of through slot 11 is also convexly equipped with platform 14, and the thickness of platform 14 is determined according to the wall thickness of the packing tube of power module, so that
The baseplane of platform and the inner bottom surface basic horizontal of packing tube；The length of platform 14 is arranged according to the detection zone of pin check bit
It needs to determine, insertion limit is carried out with the packing tube to both ends, and be connected the packing tube at both ends, make power module to be measured suitable
Freely from one end, packing tube enters pin check bit, then swimmingly slides out in another packing tube from pin check bit, to have
Sequence, batch feed that is steady, quickly completing pin number detection fixture and discharging.It is three sections that through slot 11, which divides, including leading portion, in
Section and back segment, middle section are platform section, and leading portion is feed section, and back segment is discharging section, the packing tube to power module respectively from
Feed is inserted at the both ends of through slot 11；Packing tube is the tubular device dispensed for several power modules to facilitate batch feed.
2. panel 30 as shown in Figure 5: providing the position of installation photoelectric sensor, panel 30 is rectangle, in panel 30
The medium position on surface is convexly equipped with guide pad 31, the two sides 311 of guide pad 31 respectively with the inner sidewall of corresponding pedestal through slot
111 form the detection zone 321 of two pin check bits 32.Guide pad 31 for guiding power module to enter detection zone, and into
The pin for entering the power module of detection zone carries out detection positioning.The two sides of guide pad 31 are equipped with pin check bit 32, each pin inspection
Location 32 is provided with photo-electric detector 40, and photo-electric detector 40 is made of detection circuit 41 and alarm 42.Guide pad 31
Height for flat shuttle shape structure, guide pad 31 is determined by the height of pin of power module, to facilitate the pin of power module
Into detection zone.When the spacing of the two sides of guide pad 311 and pedestal through slot inner sidewall 111 is set as the diameter slightly larger than pin
When, it can also be in the pin shaping of detection zone realization batch power module, preferably to ensure the appearance product of power module pin
The stability of matter.
Preferably, the position of two pin check bits 32 is arranged with asymmetric manner, i.e., two positions are staggered slightly to set
It sets.Alarm 42 is sound, light warning device, can be LED light, loudspeaker or liquid crystal display notice, with intuitive reflection detection
Underproof consequential signal.
The pin number detection process that the utility model is implemented is:
When power module passes through slideway, the pin of power module can block photoelectric sensor；And photoelectric sensor is by sending out
Light part and photosensitive some electronic devices form, when terminal pins block the light of photoelectric sensor sending, photosensitive part device
Part can not receive optical signal, so that photoelectric sensor exports a low level signal into counter, by counter match point
Analysis (determines the practical difference with setting value), when analyzing enumeration data and actual setpoint is variant, control alarm into
Row alarm.
In implementation process, theory can meet the pin number detection fixture of the DIP packaging power module of the utility model
(single-chip microcontroller crystal oscillator is 12M to detection terminal quantity per second, i.e., every Scanning Detction time for having executed a pin about needs up to 200,000
60us)；After checking number of terminals using above equipment, labor intensity can be substantially reduced, reduces the defective products such as more, few terminal
Risk is flowed out, the stability and reliability of power module quality of finished are improved；Also it is substantially shorter pin number detection process
Working hour improves checkability.And the detection clamp structure is simple, is easy to manufacture and use.
Three, the PCB construction figure of photo-electric detector, as shown in Figure 6:
Photo-electric detector is made of detection circuit and alarm, and wherein photo-electric detector specifically includes that
1. photoelectric sensor SEN1, including light emitting diode and photodiode, wherein light emitting diode: light source is generated,
To photosensitive offer light source；Photodiode: photosensitive, the power according to light source becomes variable resistance.
2. operational amplifier U1: exporting corresponding voltage signal according to input signal as a voltage comparator；
3. resistance R1, R2, R3, R4: being used for signal acquisition, divide, shunt, provide suitable signal；
4. PCB: the layout of route provides component welding component；
2. 3. 4. 5. outer enclosure shell: being installed to this package casing after 1. 2. 3. 4. combining, play fixed, protection 1.
The effect of component；
6. alarm, function: sound, light alarm.For example, LED light LED1, function: each power module working condition
Instruction；LCD LCD MODULE, function: real-time display coherent detection data and testing result.
Four, the circuit diagram of photo-electric detector, as shown in Figure 7；
A kind of detection circuit of photo-electric, mainly includes photoelectric sensor and operational amplifier, and photoelectric sensor includes hair
The anode of optical diode D1 and photodiode D2, light emitting diode D1 pass through resistance R1 connection feeder ear VCC, light emitting diode
The minus earth of D1；The anode of photodiode D2 is connect by resistance R2 connection feeder ear VCC, the cathode of photodiode D2
Ground；The non-inverting input terminal 3 of operational amplifier U1 is connect with the anode of photodiode D2, the inverting input terminal of operational amplifier U1
2 meet variable resistance R3, and the output end 1 of operational amplifier U1 is connect with the counting end 2 of counter JP1, and operational amplifier U1's is defeated
Enter anode 8 and connect feeder ear VCC, input negative terminal 4 is grounded；The counting end 2 of counter also connects with the cathode of Light-emitting diode LED 1
It connects, the input anode 1 of counter JP1 connects feeder ear VCC, and input negative terminal 3 is grounded；The anode of Light-emitting diode LED 1 passes through
Resistance R4 connection feeder ear VCC, the cathode of Light-emitting diode LED 1 also pass through capacitor C1 and are grounded.
Light-emitting diode LED 1 is used as alarm, detects underproof consequential signal for intuitively reflecting.Work as power module
When passing through slideway, photoelectric sensor detects pin, and exports corresponding voltage signal according to testing result, controls LED light
It lights, underproof consequential signal is detected with intuitive reflection.Specifically, the work of the detection circuit of the photo-electric of the utility model
Be as principle: after the power supply of this device, photoelectric sensor internal part light emitting diode issues light source in device, works as power module
When by sliding into, power module pin shelters from the light source of light emitting diode sending, and photodiode does not receive light-emitting diodes
The light source that pipe issues, the electric current for flowing through photodiode reduce, are equivalent to self-resistance and get higher.And photodiode is in photoelectric transfer
The signal for being connected to IC as similar partial pressure type sampling resistor in sensor inputs anode, when self-resistance is got higher, two pole of photoelectricity
Voltage synchronous raising is obtained on pipe, that is, is improved voltage comparator and inputted the voltage for rectifying pin.According to operational amplifier conduct
The characteristic of voltage comparator, when homophase input value Vin+ subtracts anti-phase input value Vin- > 0, the voltage of operational amplifier output
Close to supply voltage, that is, it is approximately equal to 5V；When no any object shelters from the light source of photodiode, photodiode is received
The light source issued to light emitting diode, flows through the intensifying current of photodiode, is equivalent to self-resistance and becomes smaller.And two pole of photoelectricity
The signal that pipe is connected to IC as similar partial pressure type sampling resistor in photoelectric sensor inputs anode, when self-resistance becomes smaller
When, voltage synchronous reduction is obtained on photodiode, that is, is reduced voltage comparator and inputted the voltage for rectifying pin.According to operation
Characteristic of the amplifier as voltage comparator, when homophase input value Vin+ subtracts anti-phase input value Vin- < 0, operational amplifier
The voltage of output is approximately equal to 0V close to 0；It moves in circles and executes this process, is i.e. the signal of the OUT terminal output of photoelectric sensor is
The square wave of 5V；After this square wave input is to counter, counted by counter, when the numerical value of meter and the numerical value of setting mismatch,
A high level signal is exported, driving LED light lights, to reach warning function.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is modified.Therefore, the utility model is not limited to specific embodiment disclosed and described above, right
Some modifications and changes of the utility model should also be as falling into the protection scope of the claims of the present utility model.In addition, to the greatest extent
It is used some specific terms in pipe this specification, these terms are merely for convenience of description, not to the utility model
Constitute any restrictions.
Claims (6)
1. a kind of pin number of DIP packaging power module detects fixture, it is characterised in that:
It is made of pedestal and the panel being placed on pedestal, generally rectangle structure,
The middle part of panel inner surface is equipped with guide pad, and the two sides of guide pad are equipped with pin check bit, and each pin check bit is provided with
Photo-electric detector；
The top of pedestal offers through slot, the position of the middle section side wall corresponding pin check bit of through slot along the channeling direction of guide pad
Place offers the deep gouge for accommodating photo-electric detector, and the middle section of through slot is also convexly equipped with platform, and the thickness of platform is according to power module
The wall thickness of packing tube determine；The length of platform is determined according to the needs that the detection zone of pin check bit is arranged；
Wherein, the two sides of guide pad form the detection of two pin check bits with the inner sidewall of corresponding pedestal through slot respectively
Area.
2. the pin number of DIP packaging power module according to claim 1 detects fixture, it is characterised in that: the face
The guide pad of plate, is flat shuttle shape structure, and the height of guide pad is determined by the height of pin of power module.
3. the pin number of DIP packaging power module according to claim 2 detects fixture, it is characterised in that: the face
The two sides of the guide pad of plate and the spacing of pedestal through slot inner sidewall are slightly larger than the diameter of the pin of power module.
4. the pin number of DIP packaging power module according to claim 2 detects fixture, it is characterised in that: described two
The position of a pin check bit is slightly staggered to be arranged.
5. the pin number of DIP packaging power module according to claim 1 or 2 detects fixture, it is characterised in that: described
The photo-electric detector of pin check bit, is made of the detection circuit of alarm and photo-electric, when power module passes through in through slot
Pin check bit when, detection circuit detects several pins of power module, is compared, when pin number is unqualified,
Control Light-emitting diode LED 1 lights.
6. the pin number of DIP packaging power module according to claim 1 or 2 detects fixture, it is characterised in that: described
The photo-electric detector of pin check bit, is made of the detection circuit of alarm and photo-electric, and the alarm is light-emitting diodes
Pipe LED1；The detection circuit includes mainly photoelectric sensor and operational amplifier, and connection relationship is photoelectric sensor packet
Including light emitting diode D1 and photodiode D2, the anode of light emitting diode D1 is by resistance R1 connection feeder ear VCC, and luminous two
The minus earth of pole pipe D1；The anode of photodiode D2 passes through resistance R2 connection feeder ear VCC, the cathode of photodiode D2
Ground connection；The non-inverting input terminal of operational amplifier U1 is connect with the anode of photodiode D2, the anti-phase input of operational amplifier U1
Variable resistance R3 is terminated, the output end of operational amplifier U1 is connect with the counting end of counter JP1, the input of operational amplifier U1
Anode connects feeder ear VCC, input negative terminal ground connection；The counting end of counter JP1 is also connect with the cathode of Light-emitting diode LED 1,
The input anode of counter JP1 connects feeder ear VCC, input negative terminal ground connection；The anode of Light-emitting diode LED 1 passes through resistance R4
Feeder ear VCC is connected, the cathode of Light-emitting diode LED 1 also passes through capacitor C1 and is grounded；When power module passes through slideway, photoelectricity
Sensor detects pin, and exports corresponding voltage signal according to testing result, and control Light-emitting diode LED 1 lights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821200366.3U CN208654204U (en) | 2018-07-27 | 2018-07-27 | The pin number of DIP packaging power module detects fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821200366.3U CN208654204U (en) | 2018-07-27 | 2018-07-27 | The pin number of DIP packaging power module detects fixture |
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| Publication Number | Publication Date |
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| CN208654204U true CN208654204U (en) | 2019-03-26 |
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ID=65786558
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821200366.3U Active CN208654204U (en) | 2018-07-27 | 2018-07-27 | The pin number of DIP packaging power module detects fixture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334286A (en) * | 2021-07-20 | 2021-09-03 | 东莞市仟泰自动化设备有限公司 | Clamp for capacitance detection |
-
2018
- 2018-07-27 CN CN201821200366.3U patent/CN208654204U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334286A (en) * | 2021-07-20 | 2021-09-03 | 东莞市仟泰自动化设备有限公司 | Clamp for capacitance detection |
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