CN201196142Y - Fault detection and indication circuit of air-conditioner compressor - Google Patents
Fault detection and indication circuit of air-conditioner compressor Download PDFInfo
- Publication number
- CN201196142Y CN201196142Y CNU2007203003168U CN200720300316U CN201196142Y CN 201196142 Y CN201196142 Y CN 201196142Y CN U2007203003168 U CNU2007203003168 U CN U2007203003168U CN 200720300316 U CN200720300316 U CN 200720300316U CN 201196142 Y CN201196142 Y CN 201196142Y
- Authority
- CN
- China
- Prior art keywords
- relay
- normally
- operation control
- unit
- unit operation
- 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
Links
Images
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
An accident detection and indication circuit for air conditioner compressor comprises a unit start button, a unit stop button, a high pressure switch, a low pressure switch, a compressor operation control alternating contact, a unit operation control relay, a high pressure detection relay, a low pressure detection relay and an indicator light. The accident detection and indication circuit utilizes circuits to check and lock the switch value accident signals of system over-high pressure or over-low pulse types in the operation of a compressor, thus is suitable for detecting various pulse type switch signals. The stop button can be used as an accident release button, having multifunction.
Description
Technical field
The utility model relates to a kind of faut detection and indicating circuit, relates in particular to a kind of air condition compressor faut detection and indicating circuit.
Background technique
In the air-conditioning unit running process, exceed the scope that is allowed, will stop the operation of unit, provide corresponding malfunction alarm indication simultaneously once system's operating pressure occurs.But after unit was out of service, system pressure will recover normally, and the indication of reporting to the police is also cancelled immediately, and the user can't know that unit is because the control that reaches behind the operational parameter control that sets is shut down this moment, still hindered for some reason and shut down.Because the former can the self-starter group move after system withdraws from halt condition, the latter then needs restart unit operation after the maintenance man checks and gets rid of fault.Be not easy to the user and observe fault and overhaul of the equipments.
Summary of the invention
The purpose of this utility model provides a kind of circuit, be used for realizing that the switching value trouble signal of the too high or too low isopulse type of the system pressure that compressor operating is occurred detects and locks, and carry out indicating fault by tutorial light, so that the user in time finds and maintenance.After fault is got rid of, utilize stop button double as trouble shooting operating button, cancel indicating fault, a key is used more.
The utility model is achieved like this, it comprises: unit starting button, unit stop button, high-voltage switch gear, lower pressure switch, compressor operating control A.C. contactor, unit operation control relay, high pressure detect relay, low pressure detects relay and tutorial light.The double trouble shooting button of doing of unit stop button wherein.
Circuit is connected to: 1, the unit starting button constitutes the starting or stopping control circuit of unit with back linking to each other with the coil of unit operation control relay of stop button series connection.One group of normally opened contact of unit operation control relay formation in parallel with the normally opened contact of start button starts holding circuit, to guarantee that the unit operation control relay still can get electric work after start button unclamps;
2, the unit operation control relay is connected with the coil of compressor operating control A.C. contactor with three normally opened contacts series connection backs that system high pressure detects relay and low pressure detection relay, constitutes compressor operating and protection control circuit;
3, detect relay coil with high pressure after the normally-closed contact of unit operation control relay is connected with high-voltage switch gear and connect and compose the system high pressure testing circuit.One group of normally opened contact of high pressure detection relay is in parallel with the normally-closed contact of unit operation control relay, and after guaranteeing that the unit starting operation makes that the normally-closed contact of unit operation control relay disconnects, high pressure detects relay still can get electric work.
4, the high pressure one group of normally-closed contact and the high voltage fault tutorial light that detect relay connects and composes the high voltage fault indicating circuit.Pressure just often, high pressure detects relay and gets electric work, its normally-closed contact disconnects, tutorial light does not work, when overpressure, high pressure detects relay electric-loss, its normally-closed contact closure, tutorial light is bright, sends the malfunction alarm indication;
5, detect relay coil with low pressure after the normally-closed contact of unit operation control relay is connected with lower pressure switch and connect and compose system low-voltage detection testing circuit.One group of normally opened contact of low pressure detection relay is in parallel with the normally-closed contact of unit operation control relay, and after guaranteeing that the unit starting operation makes that the normally-closed contact of unit operation control relay disconnects, low pressure detects relay still can get electric work.
6, the low pressure one group of normally-closed contact and the low voltage failure tutorial light that detect relay connects and composes the low voltage failure indicating circuit.Pressure just often, low pressure detects relay and gets electric work, its normally-closed contact disconnects, tutorial light does not work, when hypotony, low pressure detects relay electric-loss, its normally-closed contact closure, tutorial light is bright, sends the malfunction alarm indication;
Wherein the 3,4 and 5, the 6th, the utility model realizes that too high and hypotony trouble signal detects and locks to the system pressure that occurs in the compressor operating, and carry out indicating fault, and after the fault eliminating, utilize stop button double as trouble shooting operating button, cancel the Key Circuit of indicating fault.
When system pressure was too high, the high-voltage switch gear contact disconnected; Cross when low when system pressure, the lower pressure switch contact disconnects; When compressor operating control ac contactor coil gets compressor operating when electric; During the unit starting operation, unit operation control relay coil gets; System high pressure just often, high pressure detects relay coil and gets; System low-voltage just often, low pressure detects relay coil and gets;
The utility model has the advantages that: 1, can detect and catch the switching value signal of pulse pattern, and keep.Can be used for the detection of various pulse pattern switching signals.2, utilize the double trouble shooting operating button of doing of stop button, the many usefulness of a key simplify the operation and circuit structure.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model.In the drawings,
SB1: unit starting button SB2: unit stop button
SPH: high-voltage switch gear SPL: lower pressure switch
KM: compressor operating A.C. contactor KA1: unit operation control relay
KA2: high pressure detects relay K A3: low pressure detects relay
HL1: unit operation tutorial light HL2: high voltage fault tutorial light
HL3: low voltage failure tutorial light
Embodiment
As shown in Figure 1, circuit comprises that unit starting button SB1, unit stop button SB2, high-voltage switch gear SPH, lower pressure switch SPL, compressor operating control A.C. contactor KM, unit operation control relay KA1, high pressure detect relay K A2, low pressure detects relay K A3 and tutorial light HL.
Unit starting button SB1 links to each other with the coil of unit operation control relay KA1 with stop button SB2 series connection back, and one group of normally opened contact of unit operation control relay KA1 is in parallel with the normally opened contact of start button SB1; Unit operation control relay KA1 is connected with the coil of compressor operating control A.C. contactor KM with three normally opened contacts series connection backs that system high pressure detects relay K A2 and low pressure detection relay K A3; The normally-closed contact of unit operation control relay KA1 detects relay K A2 coil with high-voltage switch gear SPH series connection back and high pressure and is connected, and one group of normally opened contact of high pressure detection relay K A2 is in parallel with the normally-closed contact of unit operation control relay KA1; One group of normally-closed contact that high pressure detects relay K A2 is connected with high voltage fault tutorial light HL2; The normally-closed contact of unit operation control relay KA1 detects relay K A3 coil with lower pressure switch SPL series connection back and low pressure and is connected.One group of normally opened contact of low pressure detection relay K A3 is in parallel with the normally-closed contact of unit operation control relay KA1; One group of normally-closed contact that low pressure detects relay K A3 is connected with low voltage failure tutorial light HL3.
The startup of unit: after unit powers on, when system pressure just often, press to detect relay K A2, KA3 get electric, the closed self-insurance of its normally opened contact.Press unit starting button SB1, unit operation control relay KA1 gets electric, the closed self-insurance of its normally opened contact, and unit starting is connected compressor operating A.C. contactor KM loop simultaneously, the compressor starts operation, system pressure also changes thereupon.
The detection of trouble signal, maintenance and indication: in service, when the low fault of system pressure height or pressure occurring, high-voltage switch gear SPH or lower pressure switch SPL disconnect, system pressure detects relay K A2 or KA3 dead electricity, its normally-closed contact closure, high voltage fault tutorial light HL2 or low voltage failure tutorial light HL3 are bright, and its normally opened contact disconnects simultaneously, the KM dead electricity stops compressor operating.After compressor is out of service, it is normal that pressure will recover, high-voltage switch gear SPH or lower pressure switch SPL recover on-state, but because unit operation control relay KA1 still is in working state, its normally-closed contact still disconnects, Pressure testing relay K A2 or KA3 continue to keep dead electricity, and indicating fault will keep always.
The releasing of trouble signal: when unit be in operation occur to report to the police after, that presses unit stops trouble shooting button SB2, the KA1 dead electricity, its normally-closed contact is connected, Pressure testing relay K A2, KA3 get electric and self-insurance, its normally-closed contact disconnects, indicating fault is undone.
When unit does not start as yet, the detection of trouble signal, maintenance and releasing: system pressure height or the low fault of pressure just do not occur if unit starts as yet, high-voltage switch gear SPH or lower pressure switch SPL disconnect, Pressure testing relay K A2 or KA3 dead electricity, its normally-closed contact closure, fault indicating lamp HL2 or HL3 are bright.Because system pressure can not change, so trouble signal will be kept always, fault indicating lamp Chang Liang is up to system's reparation, after pressure is normal, the pressure switch closure, thus the time unit start as yet, unit operation control relay KA1 does not work, its normally-closed contact closure, Pressure testing relay K A2 or KA3 get electric work, and its normally-closed contact disconnects, and indicating fault is removed voluntarily.
Claims (1)
1. air condition compressor faut detection and indicating circuit, it comprises: unit starting button, unit stop button, high-voltage switch gear, lower pressure switch, compressor operating control A.C. contactor, unit operation control relay, high pressure detect relay, low pressure detects relay and tutorial light, it is characterized in that: the unit starting button links to each other with the coil of unit operation control relay with stop button series connection back, and one group of normally opened contact of unit operation control relay is in parallel with the normally opened contact of start button; The unit operation control relay is connected with the coil of compressor operating control A.C. contactor with three normally opened contacts series connection backs that high pressure detects relay and low pressure detection relay; The normally-closed contact of unit operation control relay detects relay coil with high-voltage switch gear series connection back with high pressure and is connected, and one group of normally opened contact of high pressure detection relay is in parallel with the normally-closed contact of unit operation control relay; One group of normally-closed contact that high pressure detects relay is connected with the high voltage fault tutorial light; The normally-closed contact of unit operation control relay detects relay coil with lower pressure switch series connection back with low pressure and is connected; One group of normally opened contact of low pressure detection relay is in parallel with the normally-closed contact of unit operation control relay; One group of normally-closed contact that low pressure detects relay is connected with the low voltage failure tutorial light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203003168U CN201196142Y (en) | 2007-12-17 | 2007-12-17 | Fault detection and indication circuit of air-conditioner compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203003168U CN201196142Y (en) | 2007-12-17 | 2007-12-17 | Fault detection and indication circuit of air-conditioner compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196142Y true CN201196142Y (en) | 2009-02-18 |
Family
ID=40415778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203003168U Expired - Fee Related CN201196142Y (en) | 2007-12-17 | 2007-12-17 | Fault detection and indication circuit of air-conditioner compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196142Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330728A (en) * | 2014-10-24 | 2015-02-04 | 珠海格力电器股份有限公司 | Alarm method, alarm system and testing tooling |
| CN104764164A (en) * | 2015-04-09 | 2015-07-08 | 宁波奥克斯电气有限公司 | Method for judging whether alternating-current contactor of air conditioner is adhered or not |
| CN109539474A (en) * | 2018-10-18 | 2019-03-29 | 珠海格力电器股份有限公司 | Air conditioning control method and device |
-
2007
- 2007-12-17 CN CNU2007203003168U patent/CN201196142Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330728A (en) * | 2014-10-24 | 2015-02-04 | 珠海格力电器股份有限公司 | Alarm method, alarm system and testing tooling |
| CN104764164A (en) * | 2015-04-09 | 2015-07-08 | 宁波奥克斯电气有限公司 | Method for judging whether alternating-current contactor of air conditioner is adhered or not |
| CN104764164B (en) * | 2015-04-09 | 2017-08-15 | 宁波奥克斯电气股份有限公司 | Judge the method for the whether viscous connection of A.C. contactor of air conditioner |
| CN109539474A (en) * | 2018-10-18 | 2019-03-29 | 珠海格力电器股份有限公司 | Air conditioning control method and device |
| CN109539474B (en) * | 2018-10-18 | 2019-12-17 | 珠海格力电器股份有限公司 | Air conditioner control method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101400939B (en) | Apparatus and method of safely turning on and off an electric consumer comprising a microcontroller | |
| CN101316037B (en) | Aftercurrent action protector with self-diagnostic function | |
| CN201733129U (en) | Multifunctional double-load double-power automatic switching control device | |
| CN201196142Y (en) | Fault detection and indication circuit of air-conditioner compressor | |
| CN201174618Y (en) | Fast switching control apparatus for micro-computer electric power | |
| CN201323448Y (en) | Overvoltage protective device for current transformer secondary side | |
| CN105652191B (en) | A kind of safety return circuit condition monitoring system | |
| CN101908778A (en) | Multifunctional dual-load dual-power automatic switchover control device | |
| CN111900698A (en) | Safety anti-misoperation circuit of converter transformer | |
| CN109193583B (en) | Control circuit for self-adaptive switching of inner bridge connection short lead protection | |
| CN201608512U (en) | Device for protecting shift operation of frequency converter | |
| CN213633724U (en) | Low-voltage circuit breaker operation circuit on-line monitoring device | |
| CN110319046B (en) | Distributed automatic fire-fighting fan inspection system | |
| CN204271746U (en) | Automatic switching device of standby power supply | |
| CN102254386A (en) | Audible-visual alarm system | |
| CN210402044U (en) | Control circuit of train | |
| CN218159283U (en) | Power supply switching alarm device for subway shielded door | |
| CN202586132U (en) | Monitoring security device for abnormal switch-on of vacuum switch | |
| CN2222979Y (en) | Automatic controller for disconnecting from normal source and connecting to stand-by source | |
| CN220064286U (en) | Isolation disconnecting link clutch monitoring circuit | |
| CN2741257Y (en) | Double power supply switching controller with phase-off protector | |
| CN2741256Y (en) | Sigle load-double power supply switching controller with phase-off protecter | |
| CN209282821U (en) | Monitor the safety relay of Press line | |
| CN220107565U (en) | Circuit for preventing circuit breaker control circuit disconnection false alarm | |
| CN104362578B (en) | Can reclosing RCCB |
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: 20090218 Termination date: 20151217 |
|
| EXPY | Termination of patent right or utility model |