CN205755091U - A kind of welding circuit board heating board with temperature-adjusting circuit - Google Patents
A kind of welding circuit board heating board with temperature-adjusting circuit Download PDFInfo
- Publication number
- CN205755091U CN205755091U CN201620461812.0U CN201620461812U CN205755091U CN 205755091 U CN205755091 U CN 205755091U CN 201620461812 U CN201620461812 U CN 201620461812U CN 205755091 U CN205755091 U CN 205755091U
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- circuit board
- temperature
- heating
- plc
- heating source
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Abstract
The utility model discloses a kind of welding circuit board heating board with temperature-adjusting circuit, including circuit board transmission line, point gum machine, heating source, turn bin, flexible PCB rack and PLC.Being provided with in the weld pad of circuit board can temperature sensor that is embedding by anisotropy conductiving glue and that be connected with PLC.Point gum machine and heating source height all can lift, and heating source is provided with range sensor.Temperature sensor, range sensor and PLC are combined, form a temperature control circuit.It is positioned at bottom the circuit board transmission line immediately below point gum machine and heating source and is provided with electric magnet；Flexible PCB rack automatically feeds for flexible PCB；Turn bin to be transferred to be positioned on the circuit board immediately below heating source by the flexible PCB on flexible PCB rack.Using after said structure, automaticity is high, automatic control soldering heating-up temperature, and production efficiency is high and middle weld pad is difficult to disperse heat energy, board heating is convenient, save production cost and can increase structural strength.
Description
Technical field
This utility model relates to a kind of electronics applications technical field, a kind of circuit board with temperature-adjusting circuit
Weld heating board.
Background technology
Circuit board can be divided into single layer board, double-layer circuit board and multilayer circuit board according to the number of line layer.The most
Layer circuit board stacking up layers line layer, and it is electrically connected with these line layers with through hole or blind hole.Owing to multilayer circuit board can be by
Line layer storehouse also concentrates in the circuit board of a little area, therefore under pursuing the trend that electronic product is light, thin, short, little, many
The application of layer circuit board is more and more extensive.
During welding flexible circuit board with circuit board, conducting resin material must apply certain solidification temperature to be formed
The weld pad contact of solidification.If it is existing that weld pad temperature deficiency will result in weld pad contact be full of cracks (Crack), hole (hole) or stripping etc.
As.But in traditional circuit board, owing to the number of plies of circuit board is different, the temperature contrast of its weld pad is the biggest.Weld pad is connect
The phenomenons such as some be full of cracks, hole or stripping often occur, and cause following insoluble difficulty: the first, weld pad contact point structure is strong
Degree weakens: once weld pad contact chap, the phenomenon such as hole or stripping, the structural strength of weld pad contact weakens significantly.Sternly
During weight, encapsulating structure or flexible circuit board will be unable to play its electrical functionality.The second, heating board operating difficulties: at circuit board
Welding process in, need to carry out manually the tune of processing technology parameter (such as heat source temperature, heating speed or thermal source distance)
Whole, to improve the temperature of specific weld pad.So during the adjustment of heating board, and required processing technology cannot be obtained accurately
Parameter, its poor effect, and manual setting inefficiency.
3rd, processing technology is reduced elastic: in response to various boards, there is different processing technology parameters, can be for difference
Processing technology parameter different production lines is set.But each production line only can be arranged in pairs or groups in specific circuit board so that production line
Processing technology elastic suitable low, will result in the idle situation of production line and occur.4th, production hour is increased: traditional
After circuit board welds with encapsulating structure or flexible circuit board, it is both needed to put into a large amount of manpower and carries out the heavy industry making work of artificial repair welding
Skill (Reworking Process), with the structural strength of reinforcement weld pad contact.The man-hour of artificial repair welding is tediously long, through being commonly formed life
Produce the bottleneck of line and increase many production hours.5th, manufacturing cost is increased: as it has been described above, traditional circuit board welds at it
In processing technology, because of the circuit board defective products increased, board standby time, production line standby time and heavy industry man-hour and heavy industry people
Power, and cause many manufacturing costs to waste.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and provides one to have temperature control
The welding circuit board heating board of circuit, this welding circuit board heating board automaticity with temperature-adjusting circuit is high, automatically
Control weld heating temperature, production efficiency is high and middle weld pad be difficult to disperse heat energy, board heating is convenient, save production cost and
Structural strength can be increased.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is:
A kind of welding circuit board heating board with temperature-adjusting circuit, in circuit board weld pad add thermal weld, including
Circuit board transmission line, point gum machine, heating source, turn bin, flexible PCB rack and PLC.
Described circuit board includes at least two metal level and the insulating barrier being arranged between adjacent two metal levels.
Wherein, being positioned on the metal level on top layer and be provided with weld pad, weld pad can pass through anisotropy conductiving glue and flexible circuit
Plate is connected；Being provided with in weld pad can temperature sensor that is embedding by anisotropy conductiving glue and that be connected with PLC.
Circuit board transmission line is for the automatic transmission of circuit board.
Point gum machine is arranged on the surface of circuit board transmission line, and height can lift；Can be soldered circuit board to be heated
Anisotropy conductiving glue is loaded on weld pad.
Heating source is arranged in the surface of the circuit board transmission line in point gum machine downstream, and height can lift；Heating
Being provided with the range sensor being connected with PLC on source, this range sensor can monitor heating source and soldered circuit board to be heated
Distance between the two.
Temperature sensor, range sensor and PLC are combined, form a temperature control circuit；This temperature control circuit also includes temperature
Degree calibration circuit, direct current amplifier and A/D converter；Temperature sensor can be to the temperature of weld anisotropy conductiving glue to be heated
Degree carries out Real-time Collection, and the temperature variation of collection is converted into current change quantity and sends into direct current amplifier；Direct current amplifies
Device carries out direct current amplification for the current signal sending into temperature sensor；The simulation that direct current amplifier is exported by A/D converter
Voltage signal is converted into digital signal and sends into PLC；Meanwhile, range sensor is by the heating source gathered and soldered circuit board to be heated
Distance value between the two passes to PLC in real time；PLC, according to setting heating-up temperature, adjusts heating source in real time and welds with to be heated
Circuit board distance between the two；Temperature correction circuit can be by ambient temperature Real-time Collection and send into PLC, by PLC to adopt in real time
Temperature sensor is calibrated and revises by the ambient temperature of collection.
It is positioned at bottom the circuit board transmission line immediately below point gum machine and heating source and is provided with electric magnet.
Flexible PCB rack is arranged on the downstream of heating source, automatically feeding for flexible PCB.
Turning bin is the mechanical arm being fixed on circuit board transmission line side, and the bottom of this mechanical arm is provided with one block of electromagnetism
Ferrum；Turn bin to be transferred to be positioned on the circuit board immediately below heating source by the flexible PCB on flexible PCB rack.
Described metal level at least three layers, is wherein positioned on the metal level of bottom and all metal levels being positioned at centre and is all provided with
It is equipped with the breach corresponding with bond pad locations, in each breach, is all filled with the silicon oxide thermal insulation layer with radiation shield performance.
The bottom of the metal level being positioned at bottom is provided with heat dissipating layer, and this heat dissipating layer is the semiconductor heat-dissipating being connected with PLC
Chip.
Described flexible PCB rack includes Lifting bench and is fixedly installed on the peripheral frame of Lifting bench surrounding.
Also include the automatic cleaning brush being arranged on heating source downstream.
Also include the appearance delection device being arranged on automatic cleaning brush downstream.
After this utility model uses said structure, automaticity is high, automatic control soldering heating-up temperature, and production efficiency is high
And middle weld pad is difficult to disperse heat energy, board heating is convenient, save production cost and can increase structural strength.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of welding circuit board heating board with temperature-adjusting circuit of this utility model.
Fig. 2 shows that weld heating completes the structural representation of circuit board.
Detailed description of the invention
With concrete better embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
As in figure 2 it is shown, circuit board 8 includes at least two metal level 81 and the insulation being arranged between adjacent two metal levels
Layer 82.Wherein, being positioned on the metal level on top layer and be provided with weld pad 87, weld pad can pass through anisotropy conductiving glue 83 and flexible circuit
Plate 84 is connected；Being provided with in weld pad can temperature sensor 86 that is embedding by anisotropy conductiving glue and that be connected with PLC.
Said temperature sensor is embedded in conducting resin material, and temperature sensor wirelessly or non-wirelessly connects with data acquisition unit
Connect.The benefit so arranged is, on the one hand can monitor temperature during welding in real time, and it is the most accurate, to solidification to weld
Temperature also can detect in real time, it is simple to analyzes the monitoring of whole temperature in welding process, understands welded condition in time.The opposing party
Face, when multilayer circuit board is arranged in complete machine, the heat condition of energy on-line monitoring multilayer circuit board, it is provided with for experimental analysis
The reference data of effect.
Above-mentioned metal level preferably at least has three layers, is wherein positioned on the metal level of bottom and all metal levels being positioned at centre
It is provided with the breach corresponding with bond pad locations, is all filled with the silicon oxide with radiation shield performance in each breach heat insulation
Layer 85.
Above-mentioned breach and the setting of silicon oxide thermal insulation layer, when weld pad welds, be avoided that temperature from coating metal layer to
Under extend vertically, and signal disturbing can be prevented, make welding temperature heating rate accelerate, high insulating effect, weld pad is difficult to disperse heat
The heating of energy, board is convenient, save production cost, and then Welding Structure intensity is high.
The bottom of the metal level being positioned at bottom is provided with heat dissipating layer, and this heat dissipating layer is the semiconductor heat-dissipating being connected with PLC
Chip.
Described flexible PCB rack preferably includes Lifting bench and is fixedly installed on the peripheral frame of Lifting bench surrounding.
As it is shown in figure 1, a kind of welding circuit board heating board with temperature-adjusting circuit, the heating of weld pad in circuit board
Welding, including circuit board transmission line 1, point gum machine 2, heating source 3, turns bin 4, flexible PCB rack 5, is arranged on heating source
The automatic cleaning brush 6 in downstream, it is arranged on the appearance delection device 7 and PLC 9 in automatic cleaning brush downstream.
Circuit board transmission line is for the automatic transmission of circuit board.
Point gum machine is arranged on the surface of circuit board transmission line, and height can lift；Can be soldered circuit board to be heated
Anisotropy conductiving glue is loaded on weld pad.
Heating source is arranged in the surface of the circuit board transmission line in point gum machine downstream, and height can lift；Heating
Being provided with the range sensor 31 being connected with PLC on source, this range sensor can monitor heating source and welding circuit to be heated
Plate distance between the two.
Temperature sensor, range sensor and PLC are combined, form a temperature control circuit；This temperature control circuit also includes temperature
Degree calibration circuit, direct current amplifier and A/D converter；Temperature sensor can be to the temperature of weld anisotropy conductiving glue to be heated
Degree carries out Real-time Collection, and the temperature variation of collection is converted into current change quantity and sends into direct current amplifier；Direct current amplifies
Device carries out direct current amplification for the current signal sending into temperature sensor；The simulation that direct current amplifier is exported by A/D converter
Voltage signal is converted into digital signal and sends into PLC；Meanwhile, range sensor is by the heating source gathered and soldered circuit board to be heated
Distance value between the two passes to PLC in real time；PLC, according to setting heating-up temperature, adjusts heating source in real time and welds with to be heated
Circuit board distance between the two；Temperature correction circuit can be by ambient temperature Real-time Collection and send into PLC, by PLC to adopt in real time
Temperature sensor is calibrated and revises by the ambient temperature of collection.
It is positioned at bottom the circuit board transmission line immediately below point gum machine and heating source and is provided with electric magnet 11.
Flexible PCB rack is arranged on the downstream of heating source, automatically feeding for flexible PCB.
Turning bin is the mechanical arm being fixed on circuit board transmission line side, and the bottom of this mechanical arm is provided with one block of electromagnetism
Ferrum；Turn bin to be transferred to be positioned on the circuit board immediately below heating source by the flexible PCB on flexible PCB rack.
A kind of welding circuit board heating means with temperature-adjusting circuit, comprise the steps:
Step 1, the installation of welding circuit board heating board: soldered circuit board to be heated is placed on circuit board transmission line
On, place temperature sensor in the weld pad of circuit board；Point gum machine is arranged on the surface of circuit board transmission line, and height can rise
Fall；Heating source is mounted on the surface of the circuit board transmission line in point gum machine downstream, and height can lift, and heating source is installed
Range sensor；It is positioned at installation electric magnet bottom the circuit board transmission line immediately below point gum machine and heating source；Flexible PCB is put
Put frame and be arranged on the downstream of heating source；Turning bin and be fixed on circuit board transmission line side, turning bin is mechanical arm, this mechanical arm
Bottom is provided with one block of electric magnet；Temperature sensor is all connected with PLC with range sensor, and with temperature correction circuit,
Direct current amplifier and A/D converter are combined, form a temperature control circuit.
Step 2, puts glue: when soldered circuit board to be heated is delivered to below point gum machine, be positioned at the electricity immediately below point gum machine
The electric magnet energising installed bottom the board transmission line of road, makes soldered circuit board to be heated stop being fed forward；Meanwhile, point gum machine declines
To soldered circuit board surface to be heated, the anisotropy conductiving glue of set amount in point gum machine is seated in soldered circuit board to be heated
Weld pad in, and temperature sensor is carried out embedding；Then, point gum machine resets, and is positioned at the electric magnet power-off immediately below point gum machine,
The circuit board that some glue completes is fed forward.
Step 3, heats and welds: mainly include following several step.
The first step, location: when the circuit board that a glue completes is delivered to immediately below heating source, be positioned at immediately below heating source
The electric magnet energising installed bottom circuit board transmission line, the circuit board that a glue is completed absorption location, stop being fed forward.
Second step, set spacing distance scope keep: the range sensor being positioned on heating source automatically detect heating source with
Soldered circuit board to be heated distance between the two, and detecting distance value is passed to PLC in time；PLC by this distance value with set
Determine spacing distance scope and compare judgement, by regulating the height of heating source, make heating source and soldered circuit board two to be heated
In the range of distance between person is maintained at setting spacing distance.
3rd step, heating and heating-up temperature adjust: heating source works, and temperature sensor is to weld anisotropy to be heated
The temperature of conducting resinl carries out Real-time Collection, and the temperature variation of collection is converted into current change quantity and sends into direct current amplification
Device；Direct current amplifier carries out direct current amplification for the current signal sending into temperature sensor；A/D converter is by direct current amplifier
The analog voltage signal of output is converted into digital signal and sends into PLC；PLC according to setting heating-up temperature, adjust in real time heating source with
Soldered circuit board to be heated distance between the two；Temperature correction circuit can by ambient temperature Real-time Collection and send into PLC, by
Temperature sensor is calibrated with the ambient temperature of Real-time Collection and revises by PLC.
4th step, welding: when temperature sensor detects that the temperature of weld anisotropy conductiving glue to be heated reaches to set
During fixed temperature, turn the circuit board that the flexible PCB on flexible PCB rack is transferred to be positioned at immediately below heating source by bin
On weld；After having welded, turn bin and reset, electric magnet power-off, weld circuit board and continued to be fed forward.
5th step, to the step having welded circuit board and carrying out automatic cleaning.
6th step, carries out the step of outward appearance detection to the circuit board after automatic cleaning.
Step 4, repeats step 2 and step 3, and carry out next soldered circuit board to be heated adds thermal weld.
Preferred implementation of the present utility model described in detail above, but, this utility model is not limited to above-mentioned reality
Execute the detail in mode, in technology concept of the present utility model, the technical solution of the utility model can be entered
The multiple equivalents of row, these equivalents belong to protection domain of the present utility model.
Claims (6)
1. have temperature-adjusting circuit welding circuit board heating a board, in circuit board weld pad add thermal weld, its feature
It is: include circuit board transmission line, point gum machine, heating source, turn bin, flexible PCB rack and PLC；
Described circuit board includes at least two metal level and the insulating barrier being arranged between adjacent two metal levels；
Wherein, being positioned on the metal level on top layer and be provided with weld pad, weld pad can pass through anisotropy conductiving glue and flexible PCB phase
Connect；Being provided with in weld pad can temperature sensor that is embedding by anisotropy conductiving glue and that be connected with PLC；
Circuit board transmission line is for the automatic transmission of circuit board；
Point gum machine is arranged on the surface of circuit board transmission line, and height can lift；It can be the weld pad of soldered circuit board to be heated
Upper filling anisotropy conductiving glue；
Heating source is arranged in the surface of the circuit board transmission line in point gum machine downstream, and height can lift；On heating source
Being provided with the range sensor being connected with PLC, this range sensor can monitor heating source and soldered circuit board to be heated
Between distance；
Temperature sensor, range sensor and PLC are combined, form a temperature control circuit；This temperature control circuit also includes temperature school
Quasi-circuit, direct current amplifier and A/D converter；The temperature of weld anisotropy conductiving glue to be heated can be entered by temperature sensor
Row Real-time Collection, and the temperature variation of collection is converted into current change quantity and sends into direct current amplifier；Direct current amplifier is used
Direct current amplification is carried out in the current signal that temperature sensor is sent into；The analog voltage that direct current amplifier is exported by A/D converter
Signal is converted into digital signal and sends into PLC；Meanwhile, range sensor is by the heating source gathered and soldered circuit board to be heated
Between distance value pass to PLC in real time；PLC, according to setting heating-up temperature, adjusts heating source and welding circuit to be heated in real time
Plate distance between the two；Temperature correction circuit can be by ambient temperature Real-time Collection and send into PLC, by PLC with Real-time Collection
Temperature sensor is calibrated and revises by ambient temperature；
It is positioned at bottom the circuit board transmission line immediately below point gum machine and heating source and is provided with electric magnet；
Flexible PCB rack is arranged on the downstream of heating source, automatically feeding for flexible PCB；
Turning bin is the mechanical arm being fixed on circuit board transmission line side, and the bottom of this mechanical arm is provided with one block of electric magnet；Turn
Flexible PCB on flexible PCB rack can be transferred to be positioned on the circuit board immediately below heating source by bin.
The welding circuit board heating board with temperature-adjusting circuit the most according to claim 1, it is characterised in that: described metal
At least three layers of layer, is wherein positioned on the metal level of bottom and all metal levels being positioned at centre and is provided with and bond pad locations phase
Corresponding breach, is all filled with the silicon oxide thermal insulation layer with radiation shield performance in each breach.
The welding circuit board heating board with temperature-adjusting circuit the most according to claim 2, it is characterised in that: it is positioned at bottom
The bottom of metal level be provided with heat dissipating layer, this heat dissipating layer is the semiconductor heat-dissipating chip being connected with PLC.
The welding circuit board heating board with temperature-adjusting circuit the most according to claim 1, it is characterised in that: described flexibility
Circuit board rack includes Lifting bench and is fixedly installed on the peripheral frame of Lifting bench surrounding.
The welding circuit board heating board with temperature-adjusting circuit the most according to claim 1, it is characterised in that: also include setting
Put the automatic cleaning brush swum under a heat source.
The welding circuit board heating board with temperature-adjusting circuit the most according to claim 5, it is characterised in that: also include setting
Put the appearance delection device in automatic cleaning brush downstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620461812.0U CN205755091U (en) | 2016-05-20 | 2016-05-20 | A kind of welding circuit board heating board with temperature-adjusting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620461812.0U CN205755091U (en) | 2016-05-20 | 2016-05-20 | A kind of welding circuit board heating board with temperature-adjusting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205755091U true CN205755091U (en) | 2016-11-30 |
Family
ID=57365199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620461812.0U Expired - Fee Related CN205755091U (en) | 2016-05-20 | 2016-05-20 | A kind of welding circuit board heating board with temperature-adjusting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205755091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828535A (en) * | 2016-05-20 | 2016-08-03 | 苏州经贸职业技术学院 | Circuit board welding heating machine with temperature control circuit |
| CN108174526A (en) * | 2017-12-12 | 2018-06-15 | 宁波隆锐机械制造有限公司 | A kind of welding circuit board method |
-
2016
- 2016-05-20 CN CN201620461812.0U patent/CN205755091U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828535A (en) * | 2016-05-20 | 2016-08-03 | 苏州经贸职业技术学院 | Circuit board welding heating machine with temperature control circuit |
| CN105828535B (en) * | 2016-05-20 | 2019-02-12 | 苏州经贸职业技术学院 | A kind of welding circuit board heating board with temperature-adjusting circuit |
| CN108174526A (en) * | 2017-12-12 | 2018-06-15 | 宁波隆锐机械制造有限公司 | A kind of welding circuit board method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20170520 |