CN1367561A - Power supply phase sequence automatic regulator of three-phase air-conditioner - Google Patents
Power supply phase sequence automatic regulator of three-phase air-conditioner Download PDFInfo
- Publication number
- CN1367561A CN1367561A CN 02110043 CN02110043A CN1367561A CN 1367561 A CN1367561 A CN 1367561A CN 02110043 CN02110043 CN 02110043 CN 02110043 A CN02110043 A CN 02110043A CN 1367561 A CN1367561 A CN 1367561A
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- phase
- contact
- contactor
- relay
- protector
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- 238000000819 phase cycle Methods 0.000 title abstract description 10
- 230000001012 protector Effects 0.000 claims abstract description 25
- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000001052 transient effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000004821 Contact adhesive Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
A phase sequence automatic regulator of power source for the phase air conditioner belonging to air conditioniner technology consists of anti-phase protector, signal wire connecting with C end, coil is AC contractor one end two to be connected with zero line, A end and B end in paralle, contact, 1,3,5 and AC contactor one and two to be connected with its three phase output end in parallel and output end connecting with contact 2,4,6 of AC contactor one. The contact 2,4,6 of AC contactor two will connec with contact 2,6,4 of AC contactor one separately. The anti-phase protector is dformed by resistar R1, capacitor C1 and resistor R2 connected with in between RST phase and central line separately, capacitor C2 series circuit, relay coil, A and of connecting constant open contact and B end of constant close contact of connecting relay. It can switch on to the correct position in transient time automatically to protect the compressor motor from burning when power source phase sequence is changing.
Description
Technical field
The invention belongs to the air conditioner technical field, a kind of power phase automatic regulator that is used for the three-phase air conditioner of more clearly saying so.
Background technology
The air conditioner of existing three phase mains, its compressor electric motor are to adopt three phase electric machine.Because the difference of three-phase power supply phase sequence can cause the change that three phase electric machine turns to, and rotary compressor can only be by the set turning operation of design, otherwise can burn compressor electric motor because of oppositely blocking cylinder.Therefore, when power supply phase sequence generation conversion, must shut down.Subsequently with manual reset, be replaced by correct phase place after, just can re-power start, recover operate as normal.In this course, the shutdown start has not only influenced indoor air conditioning continually, and has quickened the particularly damage process of compressor of air conditioner, has reduced its useful life.In addition, shutdown and manual reset are more numerous and diverse, often want the professional to carry out, and inconvenience is arranged more.Prior, there is carelessness just may burn compressor electric motor slightly.
Purpose of the present invention just is to overcome above-mentioned shortcoming and defect, provides a kind of air conditioner when three phase mains when power supply phase sequence generation conversion, need not shut down, need not manual reset, can instantaneously automatically switch to correct phase place; Can not burn compressor electric motor, not influence indoor air conditioning, not reduce air conditioner useful life of compressor particularly, use the power phase automatic regulator of three-phase air conditioner very easily.
Summary of the invention
In order to achieve the above object, the present invention is made of the electric wiring that is installed on the circuit board.Electric wiring is by the anti-phase protector that is installed on the circuit board; the holding wire that is connected with the C end of anti-phase protector; two A.C. contactors one between the side a and b of zero line and anti-phase protector and two coil respectively parallel; and be connected in R, S, the A.C. contactor one on the T three-phase output end of anti-phase protector and two contact 1,3,5, and the output to the control system power supply that is connected on the contact 2,4,6 of A.C. contactor one constitutes.And the contact 2 of A.C. contactor two also and the contact 2 of A.C. contactor one and connecting, and the contact 4 of A.C. contactor two also is connected with the contact 6 of A.C. contactor one, and the contact 6 of A.C. contactor two is and be connected with the contact 4 of A.C. contactor one.
The anti-phase protector by be connected R mutually and the resistance R 1 between the center line, be connected S mutually and the capacitor C 1 between the center line, be connected T mutually and the series circuit of resistance R 2 between the center line and capacitor C 2 and be connected in resistance R 2 and the series circuit of capacitor C 2 on relay coil, be connected C end on the contact common port of relay, be connected B end on the normally-closed contact of relay, the A end institute that is connected on the normally opened contact of relay constituted.
The operation principle of anti-phase protector is to insert the inductance of the coil of resistance capacitance and relay itself in R, S, T three phase sine alternating current circuit, and the phase angle between them is changed.When phase sequence was correct, electric current was through the relay in the anti-phase protector.Relay coil one end is that the T phase other end is three center lines.Relay gets the voltage adhesive, and terminal A-C connects, and A terminates at that the control A.C. contactor gets electric back contact adhesive on the coil of A.C. contactor, and the electric current just contact by A.C. contactor one 1,3,5 is powered to control system.
When phase sequence changes, the relay coil both end voltage same-phase in the anti-phase protector, two ends no-voltage electric current passes through, so not adhesive of relay, terminal B-C is logical.At this moment the coil of A.C. contactor two and the B point of anti-phase protector are linked to each other, the coil of A.C. contactor get electric after, its contact adhesive.Because of the output phase sequence of the contact of the contact of A.C. contactor one and A.C. contactor two is switched by wiring, so just reached the purpose of commutation.
Two A.C. contactors one and two interlockings are to prevent phase fault.Interlocking can be mechanical, also can be electric.
Task of the present invention comes to this and finishes.
The present invention has utilized the characteristic of anti-phase protector and A.C. contactor to realize the automatic adjustment of phase sequence.When power phase changed, it can instantaneously automatically switch to correct phase place.Can not burn compressor electric motor, long service life saves time conveniently.It can be widely used in the three phase mains air conditioners such as cabinet type, central family formula.
Description of drawings
Fig. 1 is an electrical schematic diagram of the present invention.
Fig. 2 is the electrical schematic diagram of anti-phase protector.
Fig. 3 is the schematic diagram of two A.C. contactor interlockings.
Shown in Figure 1; electric wiring of the present invention is by the anti-phase protector 11 that is installed on the circuit board; the holding wire 13 that is connected with the C end of anti-phase protector 12; two A.C. contactors 1 between the side a and b of zero line and anti-phase protector 11 and 2 15 coil respectively parallel; and be connected in R, S, the A.C. contactor 1 on the T three-phase output end of anti-phase protector 11 and 2 15 contact 1,3,5, and the output to the control system power supply that is connected on the contact 2,4,6 of A.C. contactor 1 constitutes.The contact 2,4,6 of A.C. contactor 2 15 is connected with the contact 2,6,4 of A.C. contactor 1 respectively.
Shown in Figure 2, anti-phase protector 11 by be connected R mutually and the resistance R 1 between the center line, be connected S mutually and the capacitor C 1 between the center line, be connected T mutually and the series circuit of resistance R 2 between the center line and capacitor C 2 and be connected in resistance R 2 and the series circuit of capacitor C 2 on relay coil 16, be connected C end on the contact common port of relay, be connected B end on the normally-closed contact 17 of relay, the A end institute that is connected on the normally opened contact 18 of relay constituted.
Shown in Figure 3, two A.C. contactors 14 and 15 are borrowed its normally-closed contact 16 and 17 interlockings respectively.
Embodiment
Embodiments of the invention 1 are as follows: a kind of power phase automatic regulator of three-phase air conditioner.It is by the anti-phase protector; the holding wire that is connected with its C end; and be connected in A.C. contactor one between zero line and its A end, the B end and two coil; and being connected in A.C. contactor one on its three-phase output end and two contact 1,3,5, the output that is connected on the contact 2,4,6 of A.C. contactor one constitutes.The contact 2,4,6 of A.C. contactor two is connected with the contact 2,6,4 of A.C. contactor one respectively.The anti-phase protector is by the resistance R 1, capacitor C 1, resistance R 2 and capacitor C 2 series circuits that are connected between R, S, T phase and the center line, and the B end of relay normally-closed contact is held, connected to relay coil, C, the A of connection normally opened contact holds formation.Two A.C. contactors one and two are borrowed its normally-closed contact interlocking.When power phase changed, embodiment 1 can instantaneously automatically switch to correct phase place.Can not burn compressor electric motor, long service life saves time conveniently.It can be widely used in the three phase mains air conditioners such as cabinet type, central family formula.
Claims (3)
1. the power phase automatic regulator of a three-phase air conditioner; it is made of the electric wiring that is installed on the off-premises station circuit board; it is characterized in that said electric wiring is by the anti-phase protector that is installed on the circuit board; the holding wire that is connected with the C end of anti-phase protector; two A.C. contactors one between the side a and b of zero line and anti-phase protector and two coil respectively parallel; and be connected in the R of anti-phase protector; S; A.C. contactor one on the T three-phase output end and two contact 1; 3; 5; and the contact 2 that is connected A.C. contactor one; 4; the output to the control system power supply on 6 constitutes; and the contact 2 of A.C. contactor two also and the contact 2 of A.C. contactor one and connecting; the contact 4 of A.C. contactor two also is connected with the contact 6 of A.C. contactor one, and the contact 6 of A.C. contactor two also is connected with the contact 4 of A.C. contactor one.
2. according to the power phase automatic regulator of the described three-phase air conditioner of claim 1, it is characterized in that said anti-phase protector by be connected R mutually and the resistance R 1 between the center line, be connected S mutually and the capacitor C 1 between the center line, be connected T mutually and the series circuit of resistance R 2 between the center line and capacitor C 2 and be connected in resistance R 2 and the series circuit of capacitor C 2 on relay coil, be connected C end on the contact common port of relay, be connected B end on the normally-closed contact of relay, the A end institute that is connected on the normally opened contact of relay constituted.
3. according to the power phase automatic regulator of claim 1 or 2 described three-phase air conditioners, it is characterized in that said two A.C. contactors one and two interlockings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021100438A CN1162948C (en) | 2002-03-01 | 2002-03-01 | Power supply phase sequence automatic regulator of three-phase air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021100438A CN1162948C (en) | 2002-03-01 | 2002-03-01 | Power supply phase sequence automatic regulator of three-phase air-conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1367561A true CN1367561A (en) | 2002-09-04 |
| CN1162948C CN1162948C (en) | 2004-08-18 |
Family
ID=4740904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021100438A Expired - Fee Related CN1162948C (en) | 2002-03-01 | 2002-03-01 | Power supply phase sequence automatic regulator of three-phase air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162948C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871981A (en) * | 2010-06-01 | 2010-10-27 | 佛山市中格威电子有限公司 | Automatic detection and regulation method and circuit for air conditioner |
| CN104753360A (en) * | 2013-12-25 | 2015-07-01 | 东芝施耐德变换器公司 | Phase sequence switching device for three-phase power supply |
| CN105334475A (en) * | 2015-11-17 | 2016-02-17 | 珠海格力电器股份有限公司 | Three-phase unit control circuit and reverse phase protection state detection method thereof |
| CN106129996A (en) * | 2016-08-25 | 2016-11-16 | 汝州市乐友实业有限公司 | A kind of distance type air-conditioning three-phase circuit falls positive system |
| CN111426890A (en) * | 2020-04-22 | 2020-07-17 | 海信（山东）空调有限公司 | Phase sequence detection circuit, outdoor unit, air conditioner and control method |
| CN112114276A (en) * | 2020-07-10 | 2020-12-22 | 青岛海信电子产业控股股份有限公司 | Control circuit, control panel, electric equipment and control method |
-
2002
- 2002-03-01 CN CNB021100438A patent/CN1162948C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871981A (en) * | 2010-06-01 | 2010-10-27 | 佛山市中格威电子有限公司 | Automatic detection and regulation method and circuit for air conditioner |
| CN104753360A (en) * | 2013-12-25 | 2015-07-01 | 东芝施耐德变换器公司 | Phase sequence switching device for three-phase power supply |
| US9774242B2 (en) | 2013-12-25 | 2017-09-26 | Toshiba Schneider Corporation | Phase sequence switching device for three-phase power supply |
| CN105334475A (en) * | 2015-11-17 | 2016-02-17 | 珠海格力电器股份有限公司 | Three-phase unit control circuit and reverse phase protection state detection method thereof |
| CN106129996A (en) * | 2016-08-25 | 2016-11-16 | 汝州市乐友实业有限公司 | A kind of distance type air-conditioning three-phase circuit falls positive system |
| CN111426890A (en) * | 2020-04-22 | 2020-07-17 | 海信（山东）空调有限公司 | Phase sequence detection circuit, outdoor unit, air conditioner and control method |
| CN112114276A (en) * | 2020-07-10 | 2020-12-22 | 青岛海信电子产业控股股份有限公司 | Control circuit, control panel, electric equipment and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1162948C (en) | 2004-08-18 |
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