CN203009253U - Control circuit of air compressor - Google Patents
Control circuit of air compressor Download PDFInfo
- Publication number
- CN203009253U CN203009253U CN 201320001591 CN201320001591U CN203009253U CN 203009253 U CN203009253 U CN 203009253U CN 201320001591 CN201320001591 CN 201320001591 CN 201320001591 U CN201320001591 U CN 201320001591U CN 203009253 U CN203009253 U CN 203009253U
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- Prior art keywords
- relay
- air compressor
- control circuit
- normally
- series
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- Expired - Fee Related
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Abstract
The utility model discloses a control circuit of an air compressor. The control circuit comprises a pressure relay, a time relay, a self-locking switch and an intermediate relay, wherein the coil of the intermediate relay is connected with a couple of normally-closed contacts of the pressure relay and a couple of normally-closed contacts of the time relay in series to form a series branch, the series branch is connected with another series branch in parallel, the second series branch is formed by connecting another couple of normally-closed contacts of the pressure relay with the coil of the time relay in series, the parallel circuit is connected with the self-locking switch in series and connected between the live wire and the zero line of a control power supply; and by adopting the control circuit disclosed by the utility model, the operation safety of the air compressor can be protected.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, relates in particular to a kind of air compressor control circuit.
Background technique
Use air compressor often to want repeatedly starting and stopping in factory, if local gas leakage is arranged, perhaps pressure relay damages, and may move by air compressor always, thereby causes the motor overload operation to damage, perhaps tracheae superpressure damage etc.
The model utility content
For addressing the above problem, the utility model aims to provide a kind of air compressor control circuit, is used for avoiding damaging the motor that causes or the damage of tracheae, the security of operation of protection air compressor because of gas leakage or pressure relay.
For achieving the above object, the utility model is realized by the following technical solutions:
The air compressor control circuit that the utility model provides comprises pressure relay, the time relay, self-lock switch, auxiliary reclay; After connecting, a pair of normally-closed contact of the coil of described auxiliary reclay and pressure relay, a pair of normally-closed contact of the time relay form the first series arm, another of described pressure relay connected with the coil of the time relay to normally-closed contact and formed the second series arm, described the first series arm and the second series arm formation parallel circuit that is in parallel, described parallel circuit with connect into after self-lock switch is connected between the live wire of controlling power supply, zero line.
Preferably, described auxiliary reclay replaces with contactor.
The utility model can be avoided damaging the motor cause or the damage of tracheae, the security of operation of protection air compressor because of gas leakage or pressure relay.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further elaborated.
As shown in Figure 1, the disclosed air compressor control circuit of the utility model comprises pressure relay K1, time relay K2, self-lock switch SA1, auxiliary reclay K3; After connecting, a pair of normally-closed contact of the coil of auxiliary reclay K3 and pressure relay K1, a pair of normally-closed contact of time relay K2 form the first series arm, another of described pressure relay K1 connected with the coil of time relay K2 to normally-closed contact and formed the second series arm, described the first series arm and the second series arm formation parallel circuit that is in parallel, this parallel circuit with connect between live wire L, the zero line N that controls power supply after self-lock switch SA1 connects.
Preferably, auxiliary reclay K3 replaces with contactor.
Working principle of the present utility model is: auxiliary reclay K3 is used for controlling the start and stop of air compressor motor; When normal operation, controlled electric, the dead electricity that gets of auxiliary reclay K3 by pressure relay K1, if pressure relay K1 damages or when causing that because of gas leakage pressure relay K1 can't disconnect, after time of advent relay K 2 set time, time relay K2 action, auxiliary reclay K3 dead electricity, the motor of air compressor quits work, thereby avoid motor overload work, the air compressor tracheae that perhaps causes because pressure is excessive damages.
Certainly; the utility model also can have other various embodiments; in the situation that do not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (2)
1. an air compressor control circuit, is characterized in that: comprise pressure relay (K1), the time relay (K2), self-lock switch (SA1), auxiliary reclay (K3); After connecting, a pair of normally-closed contact of the coil of described auxiliary reclay (K3) and pressure relay (K1), a pair of normally-closed contact of the time relay (K2) form the first series arm, another of described pressure relay (K1) connected with the coil of the time relay (K2) to normally-closed contact and formed the second series arm, described the first series arm and the second series arm formation parallel circuit that is in parallel, described parallel circuit with connect into after self-lock switch (SA1) is connected between the live wire (L) of controlling power supply, zero line (N).
2. air compressor control circuit according to claim 1, it is characterized in that: described auxiliary reclay (K3) replaces with contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001591 CN203009253U (en) | 2013-01-04 | 2013-01-04 | Control circuit of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001591 CN203009253U (en) | 2013-01-04 | 2013-01-04 | Control circuit of air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009253U true CN203009253U (en) | 2013-06-19 |
Family
ID=48600851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320001591 Expired - Fee Related CN203009253U (en) | 2013-01-04 | 2013-01-04 | Control circuit of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009253U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016325A (en) * | 2012-12-07 | 2013-04-03 | 江苏永钢集团有限公司 | Water supply pump control device |
| CN103498787A (en) * | 2013-10-18 | 2014-01-08 | 南车株洲电力机车有限公司 | Project maintenance vehicle main compressor control method and control device |
| CN113586412A (en) * | 2021-09-29 | 2021-11-02 | 三一汽车制造有限公司 | Compressor system, control method and control device thereof and hydrogen station |
-
2013
- 2013-01-04 CN CN 201320001591 patent/CN203009253U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016325A (en) * | 2012-12-07 | 2013-04-03 | 江苏永钢集团有限公司 | Water supply pump control device |
| CN103016325B (en) * | 2012-12-07 | 2015-10-21 | 江苏永钢集团有限公司 | A kind of raw water service pump control gear |
| CN103498787A (en) * | 2013-10-18 | 2014-01-08 | 南车株洲电力机车有限公司 | Project maintenance vehicle main compressor control method and control device |
| CN103498787B (en) * | 2013-10-18 | 2016-05-11 | 南车株洲电力机车有限公司 | A kind of engineering maintenance vehicle main compressor control method and control device thereof |
| CN113586412A (en) * | 2021-09-29 | 2021-11-02 | 三一汽车制造有限公司 | Compressor system, control method and control device thereof and hydrogen station |
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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 |
Granted publication date: 20130619 Termination date: 20160104 |