CN102075124A - Low power consumption starter of compressor motor of refrigerator - Google Patents
Low power consumption starter of compressor motor of refrigerator Download PDFInfo
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- CN102075124A CN102075124A CN2011100076878A CN201110007687A CN102075124A CN 102075124 A CN102075124 A CN 102075124A CN 2011100076878 A CN2011100076878 A CN 2011100076878A CN 201110007687 A CN201110007687 A CN 201110007687A CN 102075124 A CN102075124 A CN 102075124A
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- 239000007858 starting material Substances 0.000 title claims abstract description 17
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 35
- 238000004804 winding Methods 0.000 claims abstract description 30
- 239000004065 semiconductor Substances 0.000 claims abstract description 27
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 230000005669 field effect Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract description 18
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention discloses a low power consumption starter of a compressor motor of a refrigerator, which comprises a bidirectional thyristor, a rectifier bridge composed of diodes, an MOS (Metal-Oxide Semiconductor) tube and a capacitance resistance element, while the compressor motor is started, an AC (alternating current) power supply charges a capacitor, and a gate of the MOS tube has a driving trigger signal for conducting the MOS tube, thereby forming a bidirectional thyristor gate path to trigger the conduction of the bidirectional thyristor and the conduction of a secondary winding loop of the compressor motor. After the motor is started, the capacitor is gradually charged to a full state, a MOS tube gate signal disappears, the bidirectional thyristor is not triggered, and the secondary winding loop of the motor is switched off. The start-up circuit has the advantages of low steady state power consumption (may be less than 10 mW) of an overall unit, adjustable starting time, needing no PTC (Positive Temperature Coefficient) thermistor element, low cost, good working reliability and stability of the circuit owing to the use of MOS tube switch devices,, good consistency performance, strong interference resistance, etc.
Description
Technical field
The present invention relates to a kind of refrigerant compressor starting device, especially low-power consumption refrigerator compressor motor starter.
Background technology
General refrigeration compressor motor includes a main winding and one auxiliary winding of employing.During starting, all have big electric current to pass through on main winding and the auxiliary winding, after motor speed increased to synchronous speed, the starting auxiliary winding just should be closed.Otherwise continue on the auxiliary winding by big electric current, can make the auxiliary winding heating excessive and burn.Therefore, need behind the motor normal starting, motor auxiliary winding path be disconnected.Provide big electric current to auxiliary winding when can be implemented in electric motor starting, behind the proceed-to-send,, can be called starting circuit, realize that the device of this function is commonly referred to starter auxiliary winding loop dead circuit.
At present, more commonly adopt the starter of PCT thermistor.Two of the PCT thermistors of positive temperature coefficient are connected in auxiliary winding loop and controllable silicon gate pole loop respectively, and at normal temperatures, resistance value is very little, have only tens to hundreds of ohm.After compressor electric motor is connected with the mains, during beginning, the PTC resistance is less, and the bidirectional triode thyristor gate pole has enough trigger currents, the bidirectional triode thyristor conducting, the conducting of auxiliary winding loop, but along with electric current generates heat on PTC, the resistance of PTC sharply raises, and the bidirectional triode thyristor gate current reduces to very little, can't trigger the bidirectional triode thyristor conducting, thereby the auxiliary winding loop is disconnected.But, from AC power, PTC, bidirectional triode thyristor gate pole loop current all exists always, thus on the PTC also at consumed energy, general consumption reaches about 0.5W, though seem smaller on the absolute figure, for the refrigerator of long-time use, total consumption is still very considerable.
ZL200520068558.X discloses a kind of mutual inductance type non-contact starter that is used to start load motor.By a current transformer, the current signal that sampling is relevant, the conducting of control bidirectional triode thyristor, heating power consumption that can the Control current sampling system.But the parameter that it need select suitable current transformer reaches assurance triggering bidirectional triode thyristor when electric motor starting, and do not trigger bidirectional triode thyristor when motor normally moves.The selection of this parameter is just relatively more difficult, needs examination repeatedly to gather.And, when really putting into production, because the separation property of component parameter is difficult to guarantee that above-mentioned requirements one satisfies surely.In concrete practice was quoted, this circuit often produced misoperation, and promptly after motor started, bidirectional triode thyristor also can be opened, and circuit working is stable inadequately, causes unnecessary loss.After even in a single day current mutual-inductor parameter chooses, for different motor loads, do not have general applicability, for different motors, the parameter request difference of current transformer is gone so be difficult to put in the actual production application.
ZL 200710030846.X discloses a kind of starter that uses with alternating current machine starting windings in series.Bidirectional switch circuit and timing circuit have been comprised.Form the bidirectional switch circuit by rectifier bridge and metal-oxide-semiconductor, by electric capacity and triode, resistance is formed timing circuit, control bidirectional switch circuit.Though this circuit can be realized the starting of alternating current machine, this circuit is after starting, and the voltage that bear at the triode two ends approaches supply voltage, so, must adopt withstand voltage higher triode, increased cost.After electric motor starting was finished, triode was in conducting state, and this electric current is by motor auxiliary winding, resistance and triode, can consume many energy, though this invention claims and can drop to below 0.5 watt that according to new standard, this steady state power consumption still is far from reaching requirement steady state power consumption.This circuit does not add voltage-stabiliser tube between the grid of metal-oxide-semiconductor and source electrode, be easy to cause the damage of metal-oxide-semiconductor grid.
Summary of the invention
The problems referred to above at the current refrigerator compressor motor starter exists the purpose of this invention is to provide a kind of super low-power consumption, and are simple in structure, reliable, as to need not PTC element low-power consumption refrigerator compressor motor starter.
Purpose of the present invention is achieved through the following technical solutions:
Low-power consumption refrigerator compressor motor starter comprises bidirectional triode thyristor, the rectifier bridge of forming by four diodes, one end of bidirectional triode thyristor links to each other with the auxiliary winding of alternating current machine, the other end of bidirectional triode thyristor and AC power, a brachium pontis of the main winding of alternating current machine and rectifier bridge links to each other, the gate pole of bidirectional triode thyristor links to each other with another brachium pontis of rectifier bridge, a dc output end of rectifier bridge links to each other with an end of first resistance and an end of the 4th resistance, the other end of first resistance links to each other with an end of first electric capacity, the series circuit of the two ends of first electric capacity the 5th resistance in parallel and the 6th resistance, the other end of first electric capacity and voltage stabilizing didoe, one end of the parallel circuits of second electric capacity and second resistance and an end of the 3rd resistance link to each other, voltage stabilizing didoe, the other end of second electric capacity and the second resistance parallel circuits links to each other with another dc output end of the source electrode of metal-oxide-semiconductor and rectifier bridge, the other end of the 3rd resistance links to each other with the gate pole of metal-oxide-semiconductor, and the other end of the 4th resistance links to each other with the drain electrode of metal-oxide-semiconductor.
Above-mentioned metal-oxide-semiconductor can adopt enhancement mode field effect transistor or gated transistor.
Refrigerator compressor motor starter of the present invention need not the PTC temperature-sensitive element, and components and parts are few, and circuit is simple, and cost is low, and is reliable, entire circuit low in energy consumption.
Description of drawings
Fig. 1 is a kind of concrete enforcement circuit diagram of the present invention;
Fig. 2 specifically implements circuit diagram for another kind of the present invention;
MC is the refrigerator compressor motor starter among the figure, and E is an AC power, and M is a refrigerator compressor motor, and La is the motor main winding, and Lb is the motor auxiliary winding.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
With reference to Fig. 1, low-power consumption refrigerator compressor motor starter, comprise bidirectional triode thyristor T1, by four diode D1, D2, D3, the rectifier bridge BR that D4 forms, the end of bidirectional triode thyristor T1 links to each other with the auxiliary winding Lb of alternating current machine, the other end of bidirectional triode thyristor T1 and AC power E, the brachium pontis of the main winding La of alternating current machine and rectifier bridge BR links to each other, the gate pole G of bidirectional triode thyristor T1 links to each other with another brachium pontis of rectifier bridge BR, a dc output end of rectifier bridge links to each other with an end of first resistance R 1 and an end of the 4th resistance R 4, the other end of first resistance R 1 links to each other with an end of first capacitor C 1, the series circuit of the two ends of first capacitor C 1 the 5th resistance R 5 in parallel and the 6th resistance R 6, the other end of first capacitor C 1 and voltage stabilizing didoe DZ, one end of one end of the parallel circuits of second capacitor C 2 and second resistance R 2 and the 3rd resistance R 3 links to each other, voltage stabilizing didoe DZ, the other end of second capacitor C 2 and second resistance R, 2 parallel circuitss links to each other with the source S of metal-oxide-semiconductor Q1 and another dc output end of rectifier bridge, the other end of the 3rd resistance R 3 links to each other with the gate pole G of metal-oxide-semiconductor Q1, the other end of the 4th resistance R 4 links to each other with the drain D of metal-oxide-semiconductor Q1, in this example, metal-oxide-semiconductor Q1 adopts N channel enhancement field effect transistor, i.e. the NMOS pipe.
Operation principle is as follows:
When beginning to start, voltage on first capacitor C 1 is zero, when just powering on, electric current is got back to AC power by another brachium pontis of a brachium pontis, first resistance R 1, first capacitor C 1, voltage-stabiliser tube DZ and the rectifier bridge BR of AC power, motor auxiliary winding, bidirectional triode thyristor gate pole, rectifier bridge BR, this path gives first capacitor C 1 charging, at this moment, voltage-stabiliser tube DZ is operated in the voltage stabilizing state, and the gate pole of metal-oxide-semiconductor Q1 has driving voltage, this voltage is higher than the turning-on voltage of metal-oxide-semiconductor, and metal-oxide-semiconductor is open-minded.Electric current is got back to another brachium pontis of rectifier bridge BR from drain electrode S end more again by power supply, motor auxiliary winding, bidirectional triode thyristor gate pole, brachium pontis of rectifier bridge BR, the 4th resistance R 4, metal-oxide-semiconductor source electrode D end, returns AC power.This current ratio is bigger, can drive bidirectional triode thyristor T1, makes it conducting.After the bidirectional triode thyristor T1 conducting, power supply passes through the motor auxiliary winding, the end of bidirectional triode thyristor T1, and the other end of bidirectional triode thyristor T1 is got back to power supply.The motor auxiliary winding flows through very big electric current, can drive electric motor starting.After a period of time, electric charge on first capacitor C 1 slowly increases, voltage slowly rises, rise to when equating, just can't continue to have charged, at this moment with AC supply voltage, metal-oxide-semiconductor gate pole triggering signal has not had yet, metal-oxide-semiconductor can't conducting, and bidirectional triode thyristor T1 has also just turn-offed, and has just been opened a way in motor auxiliary winding loop.At this moment, motor has started to be finished, and starting circuit is in the state that zero energy consumes substantially, and unique consumption is and the 5th resistance R 5, the six resistance R 6 at first capacitor C, 1 two ends produce.Because the voltage on first capacitor C 1 is very high, first capacitor C 1 is by the 5th resistance R 5,6 discharges of the 6th resistance R, meeting is consumed power in the above, but the resistance of the 5th resistance R 5, the six resistance R 6 is very big, generally reach tens megaohms, so the power consumption of entire circuit after starting is very little, less than 10 milliwatts.After the outage, the electric charge on first capacitor C 1 bleeds off by the 5th resistance R 5, the six resistance R 6, in one minute, can re-power again, actuating motor.
Instantiation shown in Figure 2 is to adopt gated transistor with unique difference of Fig. 1, i.e. IGBT, and circuit working process and Fig. 1 are just the same.
Maximum characteristics of the present invention are super low-power consumptions.After electric motor starting was finished, the power consumption of entire circuit had only capacitor C 1 by resistance R 5, the power consumption of R6 discharge generation.After electric motor starting finished, the voltage on the capacitor C 1 was AC power effective value 220V, because R5, the resistance of R6 is very big, so at R5, the power of the last consumption of R6 is very little, less than 10 milliwatts, is zero-power basically.
Starting time of the present invention can increase R1 by 1 control of first resistance R, can prolong the starting time, reduces R1 and can reduce the starting time, so the starting time is easy to adjust.
Low-power consumption refrigerator compressor motor starter of the present invention, adopt metal-oxide-semiconductor to trigger element, trigger and stablize, and can avoid the big dispersiveness of triode multiplication factor commonly used, have filtering, anti-interference effect, be connected in parallel on second capacitor C 2 and second resistance R 2 between the metal-oxide-semiconductor Q1, filtering is to the interference of the gate pole of metal-oxide-semiconductor, after starting finishes effectively, metal-oxide-semiconductor is closed effectively, make it be unlikely to produce misoperation.Between the gate pole of metal-oxide-semiconductor and drain electrode, connect voltage stabilizing didoe DZ, can clamper live gate voltage, make it to be unlikely to overvoltage and damage.
Claims (2)
1. low-power consumption refrigerator compressor motor starter, it is characterized in that: comprise bidirectional triode thyristor (T1), by four diode (D1, D2, D3, D4) rectifier bridge of Zu Chenging (BR), one end of bidirectional triode thyristor (T1) links to each other with the auxiliary winding (Lb) of alternating current machine, the other end of bidirectional triode thyristor (T1) and AC power (E), a brachium pontis of main winding of alternating current machine (La) and rectifier bridge (BR) links to each other, the gate pole (G) of bidirectional triode thyristor (T1) links to each other with another brachium pontis of rectifier bridge (BR), a dc output end of rectifier bridge links to each other with an end of first resistance (R1) and an end of the 4th resistance (R4), the other end of first resistance (R1) links to each other with an end of first electric capacity (C1), the series circuit of the two ends of first electric capacity (C1) the 5th resistance (R5) in parallel and the 6th resistance (R6), the other end of first electric capacity (C1) and voltage stabilizing didoe (DZ), one end of second electric capacity (C2) and the parallel circuits of second resistance (R2) and an end of the 3rd resistance (R3) link to each other, voltage stabilizing didoe (DZ), the other end of second electric capacity (C2) and second resistance (R2) parallel circuits links to each other with the source electrode (S) of metal-oxide-semiconductor (Q1) and another dc output end of rectifier bridge, the other end of the 3rd resistance (R3) links to each other with the gate pole (G) of metal-oxide-semiconductor (Q1), and the other end of the 4th resistance (R4) links to each other with the drain electrode (D) of metal-oxide-semiconductor (Q1).
2. low-power consumption refrigerator compressor motor starter according to claim 1 is characterized in that: said metal-oxide-semiconductor (Q1) is enhancement mode field effect transistor or gated transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100076878A CN102075124A (en) | 2011-01-14 | 2011-01-14 | Low power consumption starter of compressor motor of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100076878A CN102075124A (en) | 2011-01-14 | 2011-01-14 | Low power consumption starter of compressor motor of refrigerator |
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| Publication Number | Publication Date |
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| CN102075124A true CN102075124A (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100076878A Withdrawn CN102075124A (en) | 2011-01-14 | 2011-01-14 | Low power consumption starter of compressor motor of refrigerator |
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| Country | Link |
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| CN (1) | CN102075124A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158150A (en) * | 2011-04-29 | 2011-08-17 | 杭州星帅尔电器股份有限公司 | Ultra-low power consumption motor starter |
| CN102611363A (en) * | 2012-03-22 | 2012-07-25 | 浙江大学 | Micro-power consumption starter of refrigeration compressor motor |
| CN105099156A (en) * | 2015-08-05 | 2015-11-25 | 矽力杰半导体技术(杭州)有限公司 | Power supply converter based on quick start |
| CN106961268A (en) * | 2017-03-17 | 2017-07-18 | 深圳市振邦智能科技股份有限公司 | Idle resistance start-up circuit |
| CN110609508A (en) * | 2019-10-17 | 2019-12-24 | 国家康复辅具研究中心 | CAN communication awakening-based standby zero-power-consumption wheelchair control system and method |
-
2011
- 2011-01-14 CN CN2011100076878A patent/CN102075124A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158150A (en) * | 2011-04-29 | 2011-08-17 | 杭州星帅尔电器股份有限公司 | Ultra-low power consumption motor starter |
| CN102158150B (en) * | 2011-04-29 | 2013-06-19 | 杭州星帅尔电器股份有限公司 | Ultra-low power consumption motor starter |
| CN102611363A (en) * | 2012-03-22 | 2012-07-25 | 浙江大学 | Micro-power consumption starter of refrigeration compressor motor |
| CN105099156A (en) * | 2015-08-05 | 2015-11-25 | 矽力杰半导体技术(杭州)有限公司 | Power supply converter based on quick start |
| CN106961268A (en) * | 2017-03-17 | 2017-07-18 | 深圳市振邦智能科技股份有限公司 | Idle resistance start-up circuit |
| CN110609508A (en) * | 2019-10-17 | 2019-12-24 | 国家康复辅具研究中心 | CAN communication awakening-based standby zero-power-consumption wheelchair control system and method |
| CN110609508B (en) * | 2019-10-17 | 2022-08-26 | 国家康复辅具研究中心 | CAN communication awakening-based standby zero-power-consumption wheelchair control system and method |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Open date: 20110601 |