CN103163452B - A kind of for testing the circuit in temperature detect switch (TDS) life-span in ballast - Google Patents
A kind of for testing the circuit in temperature detect switch (TDS) life-span in ballast Download PDFInfo
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- CN103163452B CN103163452B CN201110414036.0A CN201110414036A CN103163452B CN 103163452 B CN103163452 B CN 103163452B CN 201110414036 A CN201110414036 A CN 201110414036A CN 103163452 B CN103163452 B CN 103163452B
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- enumerator
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- ballast
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Abstract
The invention discloses a kind of for testing the circuit in temperature detect switch (TDS) life-span in ballast, including: DC power supplier, enumerator, first relay K the 1, second relay K 2, optical coupling pipe, switching tube Q1；By the break-make of temperature detect switch (TDS) in first relay K the 1, second relay K 2, optical coupling pipe, switching tube Q1 monitoring ballast, and control rolling counters forward once detecting when temperature detect switch (TDS) disconnects.It addition, enumerator is also associated with buzzer, when enumerator completes counting, buzzer warning prompting staff.Use circuit disclosed by the invention, wait for the break-make number of times at test circuit side record temperature detect switch (TDS) when testing the life-span of temperature detect switch (TDS) in ballast without staff's whole process, improve work efficiency.
Description
Technical field
The present invention relates to light fitting quality detection field, particularly relate to a kind of for testing temperature detect switch (TDS) in ballast
The circuit in life-span.
Background technology
Light fixture is as daily necessities, and the life with people is closely bound up.It is in order to ensure the light fixture dispatched from the factory
Certified products, need, after light fixture has produced, light fixture is carried out various quality testing and test.Wherein, one
Main test is the life-span of temperature detect switch (TDS) in detection lamp ballasts.The life-span of test temperature detect switch (TDS) refers to survey
Examination temperature detect switch (TDS) is the most effective under the break-make number of times of regulation.
Generally, temperature detect switch (TDS) disconnects when ambient temperature is higher than its temperature threshold values, less than another temperature
Guan Bi during degree threshold value.Temperature threshold values during disconnection is usually different values from temperature threshold values during Guan Bi,
In order to test the life-span of temperature detect switch (TDS), it is judged that it is the most qualified, need that temperature detect switch (TDS) is carried out heating and make temperature control
Switch carries out onoff.Therefore, test period is longer, needs tester at any time on side in test process
The break-make number of times of limit record temperature detect switch (TDS), is unfavorable for improving work efficiency.
Summary of the invention
The technical problem to be solved is, it is provided that one is used for testing in ballast the temperature detect switch (TDS) longevity
The circuit of life, can avoid needing the defect of manual record temperature detect switch (TDS) break-make number of times in test process.
In order to solve above-mentioned technical problem, on the one hand, embodiments of the invention provide one to be used for testing ballast
The circuit in temperature detect switch (TDS) life-span in device, including: DC power supplier, the power supply output of this DC power supplier
The positive pole of end and the common port pin electrical connection of an enumerator, the normal-closed end pin of this enumerator and one first continues
One end of the coil of electrical equipment K1 connects, the other end ground connection of the coil of described first relay K 1, described meter
The common port of number device is connected with normal-closed end；In the contact of described first relay K 1 one and a ballast
One end electrically connects, and another electrically connects with civil power zero line；The other end of described ballast passes through a current limiting element
It is connected on civil power live wire；One second relay is electrically connected on the positive pole of the power output end of this DC power supplier
One end of the coil of device K2, the other end of the coil of this second relay K 2 and the power supply of a switching tube Q1
Input connects；The contact of described second relay K 2 is connected electrically in the DC power output end of described enumerator
And between signal input part；The Enable Pin of described switching tube Q1 is connected to the first divider resistance being connected in series
On the junction point of R2 and the second divider resistance R3, the power output end ground connection of described switching tube Q1；Described open
Close and electrically connect storage capacitor C4 between Enable Pin and the power output end of pipe Q1；Described first divider resistance R2
It is connected in series the positive and negative of power output end that is rear and that be connected to described DC power supplier with the second divider resistance R3
Between pole；The minus earth of the power output end of described DC power supplier；The Enable Pin of described switching tube Q1
Electrically connect with the colelctor electrode of an optical coupling pipe, the power output end of described switching tube Q1 and the transmitting of optical coupling pipe
Pole electrically connects, and the anode of described optical coupling pipe is by the current-limiting resistance R1 being sequentially connected in series and first protection diode
D1 is connected electrically on the junction point of described ballast and current limiting element, the negative electrode of described optical coupling pipe and civil power fire
Line connects, and is connected and has the first filter capacitor C1 between anode and the negative electrode of described optical coupling pipe；Described first protects
The negative electrode protecting diode D1 is connected with current-limiting resistance R1；The power input of described enumerator respectively with civil power
Zero line and live wire electrical connection.
Further, this circuit also includes one second protection diode D2, this second protection diode D2's
Anode electrically connects with the negative electrode of described optical coupling pipe, and the negative electrode of this second protection diode D2 and civil power live wire
Electrical connection.
Further, this circuit also includes a buzzer, the power input of this buzzer and described enumerator
Normally opened end electrical connection, the power output end ground connection of this buzzer.
Specifically, the model of described optical coupling pipe is PC817.
Described current limiting element is bulb or resistance.
Foregoing circuit also includes Voltage stabilizing module Q2, and this Voltage stabilizing module Q2 is connected in described DC source mould in parallel
On the positive pole of the power output end of block and negative pole.
Further, it is connected in parallel to one between positive pole and the negative pole of the power output end of described Voltage stabilizing module Q2
Second filter capacitor C2.
Specifically, described Voltage stabilizing module Q2 is one 7812 type three-terminal voltage-stabilizing pipes.
Described enumerator is TCN-P61B enumerator.
Described switching tube Q1 is metal-oxide-semiconductor or audion.
The embodiment of the present invention has the advantage that or beneficial effect:
Circuit disclosed in the embodiment of the present invention uses relay, optical coupling pipe, switching tube to temperature detect switch (TDS)
Break-make detects, and controls rolling counters forward once detecting when temperature detect switch (TDS) disconnects, thus in test
Ballast is automatically recorded the break-make number of times of temperature detect switch (TDS) by this circuit, it is not necessary to work during life-span of temperature detect switch (TDS)
Personnel wait for the break-make number of times of record temperature detect switch (TDS) on side, it is only necessary to complete laggard row in test and check and accept,
Improve work efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is to show for testing the circuit structure in temperature detect switch (TDS) life-span in ballast in an embodiment of the present invention
It is intended to.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
Below with reference to the accompanying drawings embodiments of the invention are described.See Fig. 1, wherein show the present invention one
Plant in embodiment for testing the electrical block diagram in temperature detect switch (TDS) life-span in ballast.In this embodiment,
Circuit includes DC power supplier 10, enumerator the 11, first relay K the 1, second relay K 2, optocoupler
Close pipe 12, metal-oxide-semiconductor Q1, current limiting element 13.Wherein, first relay K the 1, second relay K 2 is equal
It is four end relays, its closing of contact when there being electric current to pass through in coil, the i.e. first relay K 1, second continues
Electrical equipment K2 is normal-open type relay.In order to Butut is convenient, by the first relay K 1 and the second relay K 2
Coil arranged apart with contact.
The positive pole of the power output end of DC power supplier 10 is electrically connected with common port pin 18 foot of enumerator 11
Connecing, one end of normal-closed end pin 19 foot of this enumerator 11 and the coil of one first relay K 1 connects, the
The other end ground connection of the coil of one relay K 1, the common port of enumerator 11 is connected with its normal-closed end；First
In the normally opened contact of relay K 1 one electrically connects with one end of ballast 14, the first relay K 1
Another in another normally opened contact electrically connects with civil power zero line, and the other end of ballast 14 passes through current limiting element
13 are connected on civil power live wire.After DC power supplier 10 connects civil power, it is connected to enumerator 11 normally closed
The coil of the first relay K 1 of end pin 19 obtains electric, its closing of contact, thus ballast 14 is accessed electricity
Road carries out life test.
On the positive pole of the power output end that coil one end of the second relay K 2 is connected to DC power supplier 10,
The other end is connected with the power input of switching tube Q1；The normally opened contact of the second relay K 2 is connected to counting
Between the DC power output end of device 11 and signal input part, count for control counter 11, when second continues
When having electric current to flow through in the coil of electrical equipment K2, the contact adhesive of the second relay K 2, enumerator 11 counts one
Secondary.
The Enable Pin of switching tube Q1 is connected to the first divider resistance R2 and the junction point of the second divider resistance R3
On, the power output end ground connection of switching tube Q1, it is connected storage capacitor between its Enable Pin with its power output end
C4；First divider resistance R2 and the second divider resistance R3 is connected in series rear and is connected to DC power supplier 10
Power output end, and the power output end of the other end of the first divider resistance R2 and DC power supplier 10
Positive pole connect, the other end of the second divider resistance R3 and the power output end of DC power supplier 10 negative
Pole connects；The minus earth of the power output end of DC power supplier 10；
Optical coupling pipe 12 is electrically connected with the Enable Pin of switching tube Q1 by its colelctor electrode, its emitter stage and switch
The power output end electrical connection of pipe Q1 ground connection, the anode of optical coupling pipe 12 is by the current limliting electricity being sequentially connected in series
Resistance R1 and first protection diode D1 is connected electrically on the junction point of ballast 14 and current limiting element 13, light
The negative electrode of coupling pipe 12 is connected with civil power live wire, and being connected between the anode of optical coupling pipe 12 and negative electrode has first
Filter capacitor C1, wherein the negative electrode of the first protection diode D1 is connected with current-limiting resistance R1.It addition, counting
The power input of device 11 electrically connects with civil power zero line and live wire respectively, civil power provide work for enumerator 11
Make power supply, naturally it is also possible to be that enumerator 11 is powered by other power supplys.
It should be noted that above-described embodiment breaker in middle pipe Q1 can be metal-oxide-semiconductor can also be audion.
When switching tube Q1 uses audion, the base stage of the Enable Pin correspondence audion of switching tube Q1, switching tube Q1
The colelctor electrode of power input correspondence audion, the transmitting of the power output end correspondence audion of switching tube Q1
Pole.When switching tube Q1 uses metal-oxide-semiconductor, the grid of the Enable Pin correspondence metal-oxide-semiconductor of switching tube Q1, open
Close drain electrode or source electrode, the power output end pair of switching tube Q1 of the power input correspondence metal-oxide-semiconductor of pipe Q1
Answer source electrode or the drain electrode of metal-oxide-semiconductor.
It should be noted that the positive pole of the first protection diode D1 is connected with current limiting element 13, negative pole and limit
Leakage resistance R1 connects, for providing protection to circuit.
Four end element that optical coupling pipe 12 is made up of light emitting diode and phototriode, work as light emitting diode
During energising conducting, its collector voltage is output as 0.In the present embodiment, close when the temperature detect switch (TDS) in ballast
During conjunction, having electric current to flow through the light emitting diode of optical coupling pipe, therefore its collector voltage is pulled down to 0, thus
The grid voltage of metal-oxide-semiconductor Q1 is also 0, and metal-oxide-semiconductor Q1 is not turned on, and does not has in the coil of the second relay K 2
Having electric current to flow through, its contact does not closes, and enumerator 11 does not counts.
Being provided with switch between normal-closed end and the common port of enumerator 11, generally, normal-closed end is with public
Switch Guan Bi between end；First counts is set when using enumerator 11, counts after arriving counts
Switching off between the normal-closed end of device 11 and common port, does not has electric current to flow through in the coil of the first relay K 1,
Its contact separation, thus the connection that the ballast 14 of disconnecting strip temperature detect switch (TDS) is in circuit, complete test.
In one preferably embodiment, connect at the normally opened end of enumerator 11 and have buzzer, this buzzer
Other end ground connection.After enumerator 11 counting reaches the counts pre-set, it is arranged on normally opened end, public affairs
End, the single-pole double-throw switch (SPDT) of normal-closed end close at normally opened end altogether, make buzzer send chimes of doom, remind work
Personnel's test is complete, and is also disconnected ballast 14 connection in circuit simultaneously.
It should be noted that owing to source electrode and the drain electrode of metal-oxide-semiconductor have more symmetrical relation, so it is even
The relation of connecing can be exchanged.
It should be noted that the purpose arranging the first filter capacitor C1 is to make to export light from civil power live wire
Filter alternating current part when coupling the diode in pipe 110, prevent diode flickering.First protection two
The positive pole of pole pipe D1 is connected with current limiting element 13, and negative pole is connected with current-limiting resistance R2, arranges the first protection two
Pole pipe D1 is to prevent the directional current in civil power from damaging the components and parts in circuit, providing protection for circuit.
The effect arranging current limiting element 13 and current-limiting resistance R2 is that electric current is excessive causes damage to ballast 1 in order to prevent
Evil.Current limiting element 13 is bulb or resistance in one embodiment.
Further, the negative electrode of optical coupling pipe 12 is connected with civil power live wire by the second protection diode D2,
The positive pole of this second protection diode D2 is connected with the negative electrode of optical coupling pipe 12, and negative pole is connected with civil power live wire.
The power output end of DC power supplier 10 is also by the second filter capacitor C2 ground connection, thus output is more
Add galvanic current pressure.
In one embodiment, DC power supplier 10 includes transformator T1, bridge heap B1, the 3rd filtering
Electric capacity C3, the primary coil of transformator T1 is connected with civil power live wire and civil power zero line respectively, its secondary coil
Exchange both positive and negative polarity with bridge heap B1 is connected respectively；The direct-flow positive pole of bridge heap B1 is as DC power supplier 10
Power output end, its direct current minus earth；3rd filter capacitor C3 is connected to the direct-flow positive pole of bridge heap B1
And between direct current negative pole.In one preferably embodiment, the power output end ground of DC power supplier 10 is just
Connect on negative pole and have Voltage stabilizing module Q2, for making the output voltage stabilization of DC power supplier 10.Specifically,
Voltage stabilizing module Q2 use 7812 three-terminal voltage-stabilizing pipe Q2 realize, the power input of 7812 three-terminal voltage-stabilizing pipes with
The power output end of DC power supplier 10 connects, and the power output end of 7812 three-terminal voltage-stabilizing pipes replaces original
The power output end of DC power supplier 10 is that other components and parts are powered, and the grounding leg of 7812 three-terminal voltage-stabilizing pipes connects
Ground.
In one embodiment, enumerator 11 uses TCN-P61B enumerator, optical coupling pipe to be PC817
Optical coupling pipe.
When using the life-span of temperature detect switch (TDS) in circuit test ballast disclosed in the embodiment of the present invention, first arrange
Need to test the break-make number of times of temperature detect switch (TDS) on enumerator 11, will by DC power supplier 10 after connecting civil power
City's alternating current is converted to after DC source output to the common port of enumerator 11, public due to enumerator 11
End and normal-closed end are in normally off, by DC power supplier 10 for being connected to the of enumerator 11 normal-closed end
The coil power supply of one relay K 1, the coil of the first relay K 1 obtain electric after, its closing of contact, thus will
Ballast 14 is linked in circuit and carries out life test；On the other hand, civil power is band by current limiting element 13
The ballast 14 of temperature detect switch (TDS) is powered, and ballast 14 generates heat；Meanwhile, civil power by current limiting element 13, the
One protection diode D1, current-limiting resistance R1 is that optical coupling pipe 12 is powered, the colelctor electrode electricity of optical coupling pipe 12
Pressure is 0, and therefore the grid voltage of metal-oxide-semiconductor Q1 is 0, and metal-oxide-semiconductor Q1 is not turned on, and does not has electric current to flow through
The coil of the second relay K 2, its contact does not contacts, and enumerator 11 does not counts.Through after a period of time,
Ballast 14 caloric value is accumulated to certain value, and when reaching the temperature threshold values that temperature detect switch (TDS) disconnects, temperature control is opened
Closing and disconnect, in optical coupling pipe 12, no current flows through, and the voltage at the second divider resistance R3 two ends is gradually increasing,
Make metal-oxide-semiconductor Q1 turn on, therefore, the coil of the second relay K 2 has electric current to flow through, its contact,
Enumerator 11 counts once.When ballast 14 temperature of band temperature detect switch (TDS) is reduced to door close limit value, temperature
Control switch closes again, circulates said process, until enumerator 11 counts reaches to arrange value.Enumerator
After 11 counts reach to arrange value, common port disconnects with normal-closed end, is connected with normally opened end, honeybee simultaneously
Ring device sends chimes of doom and reminds staff's test job to complete.
It should be noted that the ballast of indication refers both to the ballast with temperature detect switch (TDS) in the present invention.
It should be noted that the L in Fig. 1 represents civil power live wire, N represents civil power zero line.
It addition, the 220V power input of civil power live wire and zero line linkage counter 11 respectively and ground end, for
Enumerator provides working power.
The embodiment of the present invention has the advantage that or beneficial effect: use relay, optical coupling pipe, switching tube
The break-make of monitoring temperature detect switch (TDS), and when temperature detect switch (TDS) disconnects by counter records.After having tested by with meter
Staff reminded by the buzzer that number device connects, it is not necessary to staff waits in inspection in very long test process
The break-make number of times of slowdown monitoring circuit other record temperature detect switch (TDS), it is achieved that unmanned testing, improves work efficiency significantly.
Embodiments described above, is not intended that the restriction to this technical scheme protection domain.Any upper
Amendment, equivalent and the improvement etc. made within stating the spirit of embodiment and principle, should be included in this
Within the protection domain of technical scheme.
Claims (10)
1. for testing the circuit in temperature detect switch (TDS) life-span in ballast, including DC power supplier, its
Being characterised by, the positive pole of the power output end of this DC power supplier and the common port pin of an enumerator are electrically connected
Connecing, one end of the normal-closed end pin of this enumerator and the coil of one first relay K 1 connects, and described first continues
The other end ground connection of the coil of electrical equipment K1, the common port of described enumerator is connected with normal-closed end；
One in the contact of described first relay K 1 electrically connects with one end of a ballast, another and city
Electrical zero line electrically connects；The other end of described ballast is connected on civil power live wire by a current limiting element；
The coil of one second relay K 2 is electrically connected on the positive pole of the power output end of this DC power supplier
One end, the other end of the coil of this second relay K 2 and the power input of a switching tube Q1 connect；Institute
The contact stating the second relay K 2 is connected electrically in DC power output end and the signal input part of described enumerator
Between；
The Enable Pin of described switching tube Q1 is connected to the first divider resistance R2 and the second dividing potential drop electricity being connected in series
On the junction point of resistance R3, the power output end ground connection of described switching tube Q1；
Storage capacitor C4 is electrically connected between Enable Pin and the power output end of described switching tube Q1；Described first
Divider resistance R2 and the second divider resistance R3 is connected to described DC power supplier power supply after being connected in series is defeated
Go out between the both positive and negative polarity of end；The minus earth of the power output end of described DC power supplier；
The Enable Pin of described switching tube Q1 electrically connects with the colelctor electrode of an optical coupling pipe, described switching tube Q1's
Power output end electrically connects with the emitter stage of optical coupling pipe, and the anode of described optical coupling pipe is by being sequentially connected in series
Current-limiting resistance R1 and first protection diode D1 is connected electrically on the junction point of described ballast and current limiting element,
The negative electrode of described optical coupling pipe is connected with civil power live wire, and being connected between anode and the negative electrode of described optical coupling pipe has
First filter capacitor C1；The negative electrode of described first protection diode D1 is connected with current-limiting resistance R1；
The power input of described enumerator electrically connects with civil power zero line and live wire respectively.
2. circuit as claimed in claim 1, it is characterised in that also include one second protection diode D2,
The anode of this second protection diode D2 electrically connects with the negative electrode of described optical coupling pipe, and these the second protection two poles
The negative electrode of pipe D2 electrically connects with civil power live wire.
3. circuit as claimed in claim 1, it is characterised in that also include a buzzer, this buzzer
Power input electrically connect with the normally opened end of described enumerator, the power output end ground connection of this buzzer.
4. circuit as claimed in claim 1, it is characterised in that the model of described optical coupling pipe is PC817.
5. circuit as claimed in claim 1, it is characterised in that described current limiting element is bulb or resistance.
6. circuit as claimed in claim 1, it is characterised in that also include Voltage stabilizing module Q2, this voltage stabilizing
Module Q2 is connected in parallel on positive pole and the negative pole of the power output end of described DC power supplier.
7. circuit as claimed in claim 6, it is characterised in that the power supply output of described Voltage stabilizing module Q2
It is connected in parallel to one second filter capacitor C2 between positive pole and the negative pole of end.
Circuit the most as claimed in claims 6 or 7, it is characterised in that described Voltage stabilizing module Q2 is 1
Type three-terminal voltage-stabilizing pipe.
9. circuit as claimed in claim 1, it is characterised in that described enumerator is TCN-P61B meter
Number device.
10. circuit as claimed in claim 1, it is characterised in that described switching tube Q1 be metal-oxide-semiconductor or
Audion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110414036.0A CN103163452B (en) | 2011-12-13 | 2011-12-13 | A kind of for testing the circuit in temperature detect switch (TDS) life-span in ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110414036.0A CN103163452B (en) | 2011-12-13 | 2011-12-13 | A kind of for testing the circuit in temperature detect switch (TDS) life-span in ballast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103163452A CN103163452A (en) | 2013-06-19 |
| CN103163452B true CN103163452B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110414036.0A Expired - Fee Related CN103163452B (en) | 2011-12-13 | 2011-12-13 | A kind of for testing the circuit in temperature detect switch (TDS) life-span in ballast |
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| Country | Link |
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| CN (1) | CN103163452B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109764503A (en) * | 2019-01-15 | 2019-05-17 | 海信（广东）空调有限公司 | Outdoor power supply control circuit of air conditioner and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679882B (en) * | 2016-10-21 | 2024-04-19 | 广州翼鲲生物科技有限公司 | Resistance type thin film induction pedal testing device |
| CN108508324A (en) * | 2017-02-28 | 2018-09-07 | 神讯电脑(昆山)有限公司 | USB female interface detection apparatus |
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| CN201225932Y (en) * | 2008-06-03 | 2009-04-22 | 比亚迪股份有限公司 | Apparatus for testing temperature switch |
| CN102121964A (en) * | 2010-12-03 | 2011-07-13 | 滁州胜利电器有限公司 | Method for detecting sintering of switch contact of temperature controller |
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| DE102005046925A1 (en) * | 2005-09-30 | 2007-04-19 | Siemens Ag | Switching device for switching at least one current |
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|---|---|---|---|---|
| CN201225932Y (en) * | 2008-06-03 | 2009-04-22 | 比亚迪股份有限公司 | Apparatus for testing temperature switch |
| CN102121964A (en) * | 2010-12-03 | 2011-07-13 | 滁州胜利电器有限公司 | Method for detecting sintering of switch contact of temperature controller |
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| 冰箱化霜温控开关温度特性全自动测试台;陈儿同，袁曙明;《上海理工大学学报》;19940915;第16卷(第03期);第91-94页 * |
| 荧光灯及镇流器开关寿命检测仪的研制;李翠等;《辽宁工学院学报》;19980625;第18卷(第02期);第12-16页 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109764503A (en) * | 2019-01-15 | 2019-05-17 | 海信（广东）空调有限公司 | Outdoor power supply control circuit of air conditioner and air conditioner |
| CN109764503B (en) * | 2019-01-15 | 2021-04-16 | 海信（广东）空调有限公司 | Outdoor power supply control circuit of air conditioner and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103163452A (en) | 2013-06-19 |
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