CN205793716U - A kind of warning system for pcb board chiller - Google Patents
A kind of warning system for pcb board chiller Download PDFInfo
- Publication number
- CN205793716U CN205793716U CN201620402948.4U CN201620402948U CN205793716U CN 205793716 U CN205793716 U CN 205793716U CN 201620402948 U CN201620402948 U CN 201620402948U CN 205793716 U CN205793716 U CN 205793716U
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- China
- Prior art keywords
- alarm
- pcb board
- chiller
- timer
- signal receiver
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Abstract
This utility model relates to a kind of warning system for pcb board chiller, including: signal receiver, PLC, alarm, timer, described PLC is connected with signal receiver, described PLC is connected with alarm by timer, this utility model simple in construction, when pcb board is introduced into chiller or blocks up in Reflow Soldering region, PLC controls alarm and notifies user, conveniently, no matter chiller is in auto state, manual mode or halted state can use for this utility model simple in construction, operation.
Description
Technical field
This utility model relates to a kind of warning system, particularly to a kind of warning system for pcb board chiller。
Background technology
In the PCB plate course of processing, needing to cool down after needing to weld PCB plate entrance reflow machine, in cooling procedure, existing chiller cannot be in stopping to equipment or manual mode detects PCB abnormal phenomena.
Utility model content
This utility model provides a kind of warning system for pcb board device for cooling, for solving the phenomenon that existing PCB plate in the art occurs that in chiller PCB variation is normal, in order to solve above-mentioned technical problem, this utility model is by the following technical solutions, including: signal receiver, PLC, alarm, timer, described PLC is connected with signal receiver, and described PLC is connected with alarm by timer.
Preferably, signal receiver is pressure transducer or optical pickocff.
Preferably, alarm is audible alarm or optical alarm.
Preferably, timer periods is set as 25s.
The beneficial effects of the utility model: this utility model simple in construction, when pcb board is introduced into chiller or blocks up in Reflow Soldering region, PLC controls alarm and notifies user, conveniently, no matter chiller is in auto state, manual mode or halted state can use for this utility model simple in construction, operation.
Accompanying drawing explanation
Fig. 1 is system schematic of the present utility model；
Fig. 2 is control principle drawing of the present utility model；
In figure, 1, signal receiver；2, auxiliary reclay；3, timer；
4, the normally opened contact of auxiliary reclay；5, alarm；6, independent alarm device；
7, the normally opened contact of independent alarm device；8, reset switch.
Detailed description of the invention
Understand as shown in Figure 1, this utility model includes: signal receiver 1, PLC, alarm 5, timer 3, described signal receiver 1 is pressure transducer or optical pickocff, described signal receiver 1 is arranged at the pcb board charging aperture of chiller, is used for detecting whether pcb board enters in chiller from Reflow Soldering region.
Described alarm 5 is audible alarm or optical alarm 5, and exception, the frequency of described alarm 5 are preferably 1 time/second to be used for pointing out staff to occur.
Described timer 3 can be interlude relay, it is also possible to select existing time switch device, described timer 3 preferred time to be set as 25s.
Described PLC is SIEMENS PLC or Mitsubishi PLC, and described PLC is connected with signal receiver 1, and described PLC is connected with alarm 5 by timer 3.
Utilize present patent application, it is ensured that pcb board, when chiller is even at manual work state or halted state, also can detect whether pcb board enters in chiller from Reflow Soldering region in real time, prevent causing pcb board to cause in Reflow Soldering region and block up.
When chiller is in manually and during halted state, and timer 3 starts, when the time more than 25S time, when pcb board is also introduced in chiller, make alarm 5 send alarm by PLC, notify that staff removes abnormal pcb board, now alarm stopping.
nullUnderstand according to shown in Fig. 2，In present patent application，Described PLC is connected with signal receiver 1 by auxiliary reclay 2，It is specifically that signal receiver 1 is connected between at the normally opened contact 4 of relay，And the switch contact of timer 3 is also connected with signal receiver 1，For the normally opened contact 4 to auxiliary reclay electric after time delay adhesive，Guarantee when signal receiver 1 receives the signal that pcb board enters in chiller，The switch activated of timer 3 carries out timing，The normally opened contact 4 of auxiliary reclay only just can obtain electric adhesive after timer 3 meets delay time (25s)，Now，Independent alarm device 6 electric after，Normally opened contact 7 adhesive of independent alarm device is persistently reported to the police，And alarm 5 carries out audible alarm or the flashing light alarm that frequency is 1 time/second，Notify that staff removes abnormal pcb board，And close warning by reset switch 8，Now alarm stops.
The principle of above-described embodiment only illustrative present patent application and effect thereof, not for limiting present patent application.Above-described embodiment all can be modified under the spirit and the scope of present patent application or change by any person skilled in the art.Therefore, such as having all equivalence modification or changes that usually intellectual is completed under without departing from the spirit disclosed in present patent application and technological thought in art, the claim must asked by this patent is contained.
Claims (4)
1. for the warning system of pcb board chiller, including: signal receiver, PLC,
Alarm, timer, described PLC is connected with signal receiver, and described PLC is connected with alarm by timer.
2. according to the warning system for pcb board chiller a kind of described in claim 1, it is characterised in that:
Signal receiver is pressure transducer or optical pickocff.
A kind of warning system for pcb board chiller, it is characterised in that:
Alarm is audible alarm or optical alarm.
A kind of warning system for pcb board chiller, it is characterised in that:
Timer periods is set as 25s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620402948.4U CN205793716U (en) | 2016-05-06 | 2016-05-06 | A kind of warning system for pcb board chiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620402948.4U CN205793716U (en) | 2016-05-06 | 2016-05-06 | A kind of warning system for pcb board chiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205793716U true CN205793716U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620402948.4U Active CN205793716U (en) | 2016-05-06 | 2016-05-06 | A kind of warning system for pcb board chiller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205793716U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107889379A (en) * | 2017-11-20 | 2018-04-06 | 江西景旺精密电路有限公司 | Cooling means and device after a kind of PCB pressings |
| CN109014483A (en) * | 2018-06-04 | 2018-12-18 | 武汉倍普科技有限公司 | A kind of reflow ovens monitoring system and its control method |
-
2016
- 2016-05-06 CN CN201620402948.4U patent/CN205793716U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107889379A (en) * | 2017-11-20 | 2018-04-06 | 江西景旺精密电路有限公司 | Cooling means and device after a kind of PCB pressings |
| CN107889379B (en) * | 2017-11-20 | 2020-08-18 | 江西景旺精密电路有限公司 | Cooling method and device after PCB lamination |
| CN109014483A (en) * | 2018-06-04 | 2018-12-18 | 武汉倍普科技有限公司 | A kind of reflow ovens monitoring system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |