CN201884258U - Automatic control electronic switch of air compressor - Google Patents
Automatic control electronic switch of air compressor Download PDFInfo
- Publication number
- CN201884258U CN201884258U CN2010205705129U CN201020570512U CN201884258U CN 201884258 U CN201884258 U CN 201884258U CN 2010205705129 U CN2010205705129 U CN 2010205705129U CN 201020570512 U CN201020570512 U CN 201020570512U CN 201884258 U CN201884258 U CN 201884258U
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- CN
- China
- Prior art keywords
- air compressor
- relay
- electric contact
- contact
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model relates to an automatic control switch of an air compressor, in particular to an automatic control electronic switch of an air compressor. The automatic control electronic switch is characterized in that the input end of a first photoelectric coupler and a lower limit electric contact of an electric contact pressure gauge are connected in series, and then are connected with two ends of a direct-current power supply; the input end of a second photoelectric coupler and an upper limit electric contact of the electric contact pressure gauge are connected in series, and then are connected with the two ends of the direct-current power supply; a first relay and a first diode are connected in parallel, are connected with the output end of the first photoelectric coupler in series, and then are connected with the two ends of the direct-current power supply; a second relay and a second diode are connected in parallel, are connected with the output end of the second photoelectric coupler in series, and then are connected with the two ends of the direct-current power supply; and a start button, a normally-opened auxiliary contact of an alternating-current contactor and a normally-opened contact of the first relay are connected in parallel, are connected with a stop button and a normally-closed contact of the second relay in series, and then are connected with two ends of an alternating-current power supply. The automatic control electronic switch has the advantages and positive effects that the air compressor are controlled automatically to switch on and off by the electronic technology, so that the electronic switch not only is practicable, but also can lead the setting of upper limit voltage and lower limit voltage of the air compressor to be more accurate.
Description
Technical field
The utility model relates to a kind of air compressor automatic control switch, and particularly air compressor is controlled electronic switch automatically.
Background technique
At present, air compressor is industrial and mining enterprise's common equipments, and the automatic control switch of its adapted is the mechanical type baroswitch, and the price of this switch is higher, and rate of fault is high and the damage back is difficult repairs.
Summary of the invention
The purpose of this utility model provides a kind of air compressor and controls electronic switch automatically, controls the Kai Heguan of air compressor automatically with electronic technology.
The purpose of this utility model is achieved in that circuit is by A.C. contactor, pressure gauge with electric contact, relay, photo coupler, diode, resistance, electric capacity, transformer and button are formed, three-phase power input end is often opened main contact with three-phase power output end by A.C. contactor and is linked to each other, ac power supply is through the transformer transformation, the rectification circuit rectification, behind the capacitor filtering backward the level circuit supply, be connected on the ac power supply two ends after resistance and the light emitting diode series connection, it is characterized in that: be connected on DC electrical source two ends after the first photo coupler input end and the series connection of pressure gauge with electric contact lower limit electric contact, be connected on DC electrical source two ends after the second photo coupler input end and the series connection of pressure gauge with electric contact upper limit electric contact, first relay and the first diode parallel connection are connected on DC electrical source two ends again with after the series connection of first photoelectric coupler output end, second relay and the second diode parallel connection are connected on DC electrical source two ends, start button again with after the series connection of second photoelectric coupler output end, A.C. contactor often leaves auxiliary contact and the first relay normally open contact parallel connection again and stop button, be connected on ac power supply two ends after the series connection of the second relay normally-closed contact.With the welding of circuit original paper in the circuit board, and place shell, three-phase power output end, start button, stop button and light emitting diode place case surface, and pressure gauge with electric contact is connected on the air compressor, and three-phase power input end extracts from shell with lead.Photo coupler model 4N25 type, pressure gauge with electric contact model YX150 type.
Because adopt technique scheme, advantage and good effect that the utility model had are: control the Kai Heguan of air compressor automatically with electronic technology, not only practical, but also can make the upper and lower pressure limiting setting of air compressor more accurate.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the utility model embodiment's a shell mechanism schematic representation.
A. three-phase power input end B. three-phase power output end R. resistance G. light emitting diode T. transformer G among the figure
0. rectification circuit G
1. the first photo coupler G
2. the second photo coupler G
3. the first diode G
4. the second diode P. pressure gauge with electric contact C. electric capacity K
1. first relay K
2. second relay K
1-1. first relay normally open contact the K
2-1. second relay normally-closed contact the S
1. start button S
2. stop button K
3. A.C. contactor K
3-1. main contact K often left by A.C. contactor
3-2. auxiliary contact Y. shell often left by A.C. contactor
Embodiment
In Fig. 1, three-phase power input end (A) and three-phase power output end (B) are often opened main contact (K by A.C. contactor
3-1) link to each other, ac power supply is through transformer (T) transformation, rectification circuit (G
0) level circuit supply backward after the rectification, electric capacity (C) filtering, resistance (R) and light emitting diode (G) series connection is characterized in that at the ac power supply two ends: the first photo coupler (G
1) be connected on DC electrical source two ends, the second photo coupler (G after the series connection of input end and pressure gauge with electric contact (P) lower limit electric contact
2) be connected on DC electrical source two ends, the first relay (K after the series connection of input end and pressure gauge with electric contact (P) upper limit electric contact
1) and the first diode (G
3) parallel connection again with the first photo coupler (G
1) be connected on DC electrical source two ends, the second relay (K after the output terminal series connection
2) and the second diode (G
4) parallel connection again with the second photo coupler (G
2) be connected on DC electrical source two ends, start button (S after the output terminal series connection
1), A.C. contactor often leaves auxiliary contact (K
3-2) and the first relay normally open contact (K
1-1) parallel connection again and stop button (S
2), the second relay normally-closed contact (K
2-1) is connected on ac power supply two ends after the series connection.
In Fig. 2, with the welding of the circuit original paper among Fig. 1 in the circuit board, and place shell (Y), three-phase power output end (B), start button (S
1), stop button (S
2) and light emitting diode (G) place case surface, pressure gauge with electric contact (P) is connected on the air compressor, three-phase power input end extracts from shell (Y) with lead.
Claims (3)
1. an air compressor is controlled electronic switch automatically, circuit is made up of A.C. contactor, pressure gauge with electric contact, relay, photo coupler, diode, resistance, electric capacity, transformer and button, and three-phase power input end (A) and three-phase power output end (B) are often opened main contact (K by A.C. contactor
3-1) link to each other, ac power supply is through transformer (T) transformation, rectification circuit (G
0) level circuit supply backward after the rectification, electric capacity (C) filtering, resistance (R) and light emitting diode (G) series connection is characterized in that at the ac power supply two ends: the first photo coupler (G
1) be connected on DC electrical source two ends, the second photo coupler (G after the series connection of input end and pressure gauge with electric contact (P) lower limit electric contact
2) be connected on DC electrical source two ends, the first relay (K after the series connection of input end and pressure gauge with electric contact (P) upper limit electric contact
1) and the first diode (G
3) parallel connection again with the first photo coupler (G
1) be connected on DC electrical source two ends, the second relay (K after the output terminal series connection
2) and the second diode (G
4) parallel connection again with the second photo coupler (G
2) be connected on DC electrical source two ends, start button (S after the output terminal series connection
1), A.C. contactor often leaves auxiliary contact (K
3-2) and the first relay normally open contact (K
1-1) parallel connection again and stop button (S
2), the second relay normally-closed contact (K
2-1) is connected on ac power supply two ends after the series connection.
2. a kind of air compressor according to claim 1 is controlled electronic switch automatically, it is characterized in that: photo coupler model 4N25 type.
3. a kind of air compressor according to claim 1 is controlled electronic switch automatically, it is characterized in that: pressure gauge with electric contact model YX150 type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205705129U CN201884258U (en) | 2010-10-11 | 2010-10-11 | Automatic control electronic switch of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205705129U CN201884258U (en) | 2010-10-11 | 2010-10-11 | Automatic control electronic switch of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884258U true CN201884258U (en) | 2011-06-29 |
Family
ID=44181798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205705129U Expired - Fee Related CN201884258U (en) | 2010-10-11 | 2010-10-11 | Automatic control electronic switch of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884258U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721114A (en) * | 2012-06-14 | 2012-10-10 | 华为技术有限公司 | Base station cabinet air conditioner, operation control method and controller |
| CN103334912B (en) * | 2013-07-11 | 2015-08-05 | 西安工业大学 | Pressure gauge with electric contact control circuit |
-
2010
- 2010-10-11 CN CN2010205705129U patent/CN201884258U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721114A (en) * | 2012-06-14 | 2012-10-10 | 华为技术有限公司 | Base station cabinet air conditioner, operation control method and controller |
| WO2013185488A1 (en) * | 2012-06-14 | 2013-12-19 | 华为技术有限公司 | Base station cabinet type air conditioner, operation control method and controller |
| CN103334912B (en) * | 2013-07-11 | 2015-08-05 | 西安工业大学 | Pressure gauge with electric contact control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20111011 |