CN107086822A - Start control circuit, compressor assembly and the refrigeration plant of load motor - Google Patents
Start control circuit, compressor assembly and the refrigeration plant of load motor Download PDFInfo
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- CN107086822A CN107086822A CN201710385050.XA CN201710385050A CN107086822A CN 107086822 A CN107086822 A CN 107086822A CN 201710385050 A CN201710385050 A CN 201710385050A CN 107086822 A CN107086822 A CN 107086822A
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- control circuit
- resistance
- gate
- controlled switch
- load motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/42—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
Abstract
The invention discloses a kind of start control circuit of load motor, compressor assembly and refrigeration plant, the start control circuit of the load motor includes：Electric motor starting loop, triggers circuit and control circuit, the control circuit controls the triggers circuit to export trigger signal to the gate-controlled switch to trigger the gate-controlled switch conducting in the single phase AC electric motor starting, the electric motor starting loop turns on to start the load motor, and the control circuit is by controlling the triggers circuit to stop exporting the trigger signal so that the gate-controlled switch is turned off after the load motor completes to start, the electric motor starting loop disconnects.By the disconnection in electric motor starting loop so after electric motor starting, accomplish starting resistance idle substantially, so that the energy waste for avoiding electric motor starting loop from producing power consumption in motor operation and causing, reduces power consumption, improves efficiency grade, energy-conserving and environment-protective.
Description
Technical field
The present invention relates to electric machines control technology technical field, the starting control electricity of more particularly to a kind of load motor
Road, a kind of compressor assembly and a kind of refrigeration plant.
Background technology
At present, the constant speed compressor matching in most of refrigeration plant uses common efficiency starter, in constant speed pressure
When contracting machine is run, PTC (Positive Temperature Coefficient, positive temperature coefficient) temperature-sensitive electricity inside starter
Resistance is constantly in "on" position, and power consumption is generally 2-3W, and this part of power consumption will directly affect refrigeration plant such as refrigerator
Power consumption and efficiency grade, accumulate over a long period and will also result in a large amount of wastes of the energy so that the inadequate energy-conserving and environment-protective of refrigeration plant.
Accordingly, it would be desirable to improve to the power problemses of motor starter.
The content of the invention
It is contemplated that at least solving one of technical problem in above-mentioned technology to a certain extent.Therefore, the present invention
One purpose is to propose a kind of start control circuit of load motor, can accomplish substantially after electric motor starting starter without
Power consumption, it is to avoid energy waste.
Second object of the present invention is to propose a kind of compressor assembly.
Third object of the present invention is to propose a kind of refrigeration plant.
To reach above-mentioned purpose, first aspect present invention embodiment proposes a kind of starting control electricity of load motor
Road, including：Electric motor starting loop, the electric motor starting loop includes starting resistance and gate-controlled switch, the one of the starting resistance
End is connected to the first end of AC power by the auxiliary winding in the load motor, the first end of the gate-controlled switch and
The other end of the starting resistance is connected, and the second end of the gate-controlled switch is connected with the second end of the AC power；Triggering
Circuit, the first end of the triggers circuit is connected with the control end of the gate-controlled switch, the second end difference of the triggers circuit
It is connected with the second end of the gate-controlled switch and the second end of the AC power, the triggers circuit is described controllable to control
Switch conduction or shut-off；Control circuit, the first end of the control circuit respectively with the other end of the starting resistance and described
The first end of gate-controlled switch is connected, and the second end of the control circuit is connected with the 3rd end of the triggers circuit, the control
Circuit controls the triggers circuit to export trigger signal to the gate-controlled switch to trigger in the single phase AC electric motor starting
The gate-controlled switch conducting, the electric motor starting loop turns on to start the load motor, and in the list
Cross streams motor complete after starting the control circuit by controlling the triggers circuit to stop exporting the trigger signal so that
The gate-controlled switch shut-off, the electric motor starting loop disconnects.
The start control circuit of the load motor proposed according to embodiments of the present invention, in single phase AC electric motor starting
Turned on by controlling triggers circuit to export trigger signal to gate-controlled switch with triggering gate-controlled switch so that lead in electric motor starting loop
Logical, realization is started to load motor, and control circuit is triggered by controlling after load motor completes to start
Circuit stops output trigger signal so that gate-controlled switch is turned off, so that the disconnection of electric motor starting loop, leads to so after electric motor starting
The disconnection in electric motor starting loop is crossed, accomplishes starting resistance idle substantially, so as to avoid electric motor starting loop in motor operation
The energy waste for producing power consumption and causing, reduces power consumption, improves efficiency grade, energy-conserving and environment-protective.Also, starting resistance can
Using common resistance, cost has been greatly reduced.
In addition, the start control circuit of the load motor proposed according to the above embodiment of the present invention, can also have
The technical characteristic added as follows：
According to one embodiment of present invention, the gate-controlled switch can be bidirectional triode thyristor.
According to one embodiment of present invention, the control circuit may include：Rectifier bridge, the first exchange of the rectifier bridge
The first end as the control circuit is held, the second of the rectifier bridge exchanges end as the second end of the control circuit；The
One resistance, one end of the first resistor is connected with the first DC terminal of the rectifier bridge；Second resistance, the second resistance
One end is connected with the first DC terminal of the rectifier bridge；3rd resistor, one end of the 3rd resistor and the first resistor
The other end is connected, and the other end of the 3rd resistor is connected with the second DC terminal of the rectifier bridge；First electric capacity, described first
One end of electric capacity is connected with the other end of the first resistor and one end of the 3rd resistor respectively；4th resistance, described
One end of four resistance is connected with the other end of first electric capacity, the other end of the 4th resistance and the second of the rectifier bridge
DC terminal is connected；First triode, the base stage of first triode respectively with the other end of first electric capacity and described
One end of four resistance is connected, and the emitter stage of first triode is connected with the second output end of the rectifier bridge；First voltage stabilizing
Diode, the anode of first voltage-regulator diode is connected with the colelctor electrode of first triode, the pole of the first voltage stabilizing two
The negative electrode of pipe is connected with the other end of the second resistance.
According to one embodiment of present invention, the control circuit also includes：Second voltage-regulator diode, second voltage stabilizing
The anode of diode is connected with the second DC terminal of the rectifier bridge, the negative electrode of second voltage-regulator diode and the described first electricity
The other end of resistance is connected.
According to one embodiment of present invention, first triode can be NPN triode.
According to one embodiment of present invention, the triggers circuit includes：Diac, the of the diac
One end as the triggers circuit first end, the second end of the diac as the triggers circuit the 3rd end；
5th resistance, one end of the 5th resistance is connected with the first end of the diac, the other end of the 5th resistance
It is used as the second end of the triggers circuit；Second electric capacity, one end of second electric capacity and the other end phase of the 5th resistance
Even, the other end of second electric capacity is connected with the second end of the diac；6th resistance, the 6th resistance and institute
The second electric capacity is stated to be connected in parallel.
According to one embodiment of present invention, the diac is bidirectional trigger diode.
To reach above-mentioned purpose, second aspect of the present invention embodiment proposes a kind of compressor assembly, and it includes above-mentioned
The start control circuit of load motor.
The compressor assembly proposed according to embodiments of the present invention, passes through above-mentioned start control circuit so that electric motor starting is complete
Into rear disconnection electric motor starting loop, by the disconnection in electric motor starting loop so after electric motor starting, accomplish starting resistance substantially
Idle, so that the energy waste for avoiding electric motor starting loop from producing power consumption in motor operation and causing, reduces power consumption,
Improve efficiency grade, energy-conserving and environment-protective.
To reach above-mentioned purpose, third aspect present invention embodiment proposes a kind of refrigeration plant, and it includes above-mentioned compression
Machine system.
Motor is disconnected after the completion of refrigeration plant according to embodiments of the present invention, electric motor starting that can be in compressor assembly
Start loop, by the disconnection in electric motor starting loop so after electric motor starting, accomplishes starting resistance idle, so as to keep away substantially
Exempt from the energy waste that electric motor starting loop produces power consumption in motor operation and caused, reduce power consumption, improve efficiency etc.
Level, energy-conserving and environment-protective.
Wherein, the refrigeration plant can be refrigerating refrigerator.
Brief description of the drawings
Fig. 1 is the block diagram of the start control circuit of the load motor according to the embodiment of the present invention；
Fig. 2 is the circuit diagram of the start control circuit of the load motor according to one embodiment of the invention；
Fig. 3 is the block diagram of the compressor assembly according to the embodiment of the present invention；
Fig. 4 is the block diagram of the refrigeration plant according to the embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Below in conjunction with the accompanying drawings come the start control circuit of the load motor of the proposition that describes the embodiment of the present invention, compression
Machine system and refrigeration plant.
Fig. 1 is the block diagram of the start control circuit of the load motor according to the embodiment of the present invention.Fig. 2 is root
According to the circuit diagram of the start control circuit of the load motor of one embodiment of the invention.
With reference to shown in Fig. 1 and Fig. 2, in one embodiment of the invention, load motor 11 include main winding L1 and
Auxiliary winding L2, main winding L1 first end are connected with auxiliary winding L2 first end and led to first node J1, first node J1
Cross the first end that overload protective device OLP is connected to AC power AC, main winding L1 the second end and auxiliary winding L2 the second end it
Between be connected with operation electric capacity RC, main winding L1 the second end is connected to AC power AC the second end.
Also, a kind of as depicted in figs. 1 and 2, the start control circuit for load motor that the embodiment of the present invention is proposed
100 include：Electric motor starting loop 10, trigger circuit 20 and control circuit 30.
Wherein, electric motor starting loop 10 includes starting resistance 101 and gate-controlled switch 102, and one end of starting resistance 101 passes through
Auxiliary winding L2 in load motor 11 is connected to the first end of AC power, and the first end of gate-controlled switch 102 is with starting electricity
The other end of resistance 101 is connected, and the second end of gate-controlled switch 102 is connected with AC power AC the second end；The of triggers circuit 20
One end is connected with the control end of gate-controlled switch 102, the second end of triggers circuit 20 respectively with the second end of gate-controlled switch 102 and friendship
The second end for flowing power supply AC is connected, and triggers circuit 20 is to control the on or off of gate-controlled switch 102；Control the first of circuit 30
End is connected with the other end of starting resistance 101 and the first end of gate-controlled switch 102 respectively, controls the second end and the triggering of circuit 30
3rd end of circuit 20 is connected, and control circuit 30 controls triggers circuit 20 to export trigger signal when load motor 11 is started
Turned on to gate-controlled switch 102 with triggering gate-controlled switch 102, electric motor starting loop 10 turns on to play load motor 11
It is dynamic, and after load motor 11 completes to start control circuit 30 by control triggers circuit 20 stop output trigger signal with
Gate-controlled switch 102 is turned off, electric motor starting loop 10 disconnects, operation rank is so entered after load motor completes to start
Section, electric motor starting loop is to disconnect, the basic idle of starting resistance, so as to reduce power consumption during motor operation, reduction
Power consumption, it is to avoid energy waste.
Wherein, starting resistance can be common conventional resistive, so compared to PTC resistor is used, can substantially reduce into
This.
According to one embodiment of present invention, as shown in Fig. 2 gate-controlled switch 102 can be bidirectional triode thyristor TR1, and
Bidirectional triode thyristor TR1 conductings when control pole G receives the trigger signal of the output of triggers circuit 20.
, wherein it is desired to, it is necessary to which auxiliary winding L2 (starting winding) is led in explanation, the starting process of load motor 11
It is logical, so as to phase difference be produced by main winding L1 and auxiliary winding L2 electric current, so as to produce rotating excitation field to carry out electric motor starting.
Specifically, control circuit 30 controls triggers circuit 20 to export trigger signal extremely when load motor 11 is started
Gate-controlled switch 102, so that gate-controlled switch 102 is turned on, and then AC power AC, auxiliary winding L2, starting resistance 101, gate-controlled switch
102 form loop, and load motor 11 is started.After load motor 11 completes to start, control circuit 30 is controlled
Triggers circuit 20 processed stops output trigger signal, so that gate-controlled switch 102 disconnects so that electric motor starting loop 10 disconnects, so
The basic idle of starting resistance, so as to reduce power consumption during motor operation, reduces power consumption, it is to avoid energy waste.
According to one embodiment of present invention, as shown in Fig. 2 control circuit includes：Rectifier bridge DB1, first resistor R1,
Two resistance R2,3rd resistor R3, the first electric capacity C1, the 4th resistance R4, the first triode T1 and the first voltage-regulator diode DZ1.
Wherein, rectifier bridge DB1 the first exchange end is used as the first end of control circuit 30, rectifier bridge DB1 the second exchange
Hold the second end as control circuit 30；First resistor R1 one end is connected with rectifier bridge DB1 the first DC terminal；Second resistance
R2 one end is connected with rectifier bridge DB1 the first DC terminal；3rd resistor R3 one end is connected with the first resistor R1 other end,
The 3rd resistor R3 other end is connected with rectifier bridge DB1 the second DC terminal；First electric capacity C1 one end respectively with first resistor
The R1 other end is connected with 3rd resistor R3 one end；4th resistance R4 one end is connected with the first electric capacity C1 other end, the
The four resistance R4 other end is connected with rectifier bridge DB1 the second DC terminal；First triode T1 base stage respectively with the first electric capacity
The C1 other end and the 4th resistance R4 one end are connected, the first triode T1 emitter stage and rectifier bridge DB1 the second output end
It is connected；First voltage-regulator diode DZ1 anode is connected with the first triode T1 colelctor electrode, the first voltage-regulator diode DZ1 the moon
Pole is connected with the second resistance R2 other end.
Specifically, when load motor 11 is started, control circuit 30 by rectifier bridge DB1 by AC rectification into
Single-phase Rectified alternating current, is charged by first resistor R1 to the first electric capacity C1.Within an alternation cycle, with whole
Stream bridge DB1 DC terminal voltage gradually rises, and the voltage at the first voltage-regulator diode DZ1 two ends is also with rise, until first steady
Diode DZ1 reverse breakdowns are pressed, the first triode T1 conductings are triggered immediately, now, the equivalent resistance of control circuit 30 reduces, with
The DC terminal voltage for rectifier bridge DB1 continues to raise, and the first triode T1 collection radio stream Ice becomes big, so that triggers circuit 20
Trigger signal can be exported to gate-controlled switch 102, triggering gate-controlled switch 102 is turned on, and then electric motor starting loop 10 is turned on, with right
Load motor 11 is started.After load motor 11 completes to start, during the first electric capacity C1 charging completes, the first electricity
The both end voltage for holding C1 is stable, so that the first triode T1 ends, at this moment controls the equivalent resistance increase of circuit 30, triggers circuit
20 partial pressure, which reduces, causes diac D1 from triggering and conducting, and triggers circuit 20 stops output trigger signal, gate-controlled switch
102 complete switch off so that pass through substantially without maintenance electric current in starting resistance, the purpose of idle when realizing motor operation.
Wherein it is possible to the charging interval by adjusting the first electric capacity C1, to control the turn-off time of gate-controlled switch 102, i.e.,
It can ensure that load motor 11 has the time reliably started.
In one particular embodiment of the present invention, as shown in Fig. 2 control circuit 30 also includes the second voltage-regulator diode
DZ2, the second voltage-regulator diode DZ2 anode is connected with rectifier bridge DB1 the second DC terminal, the second voltage-regulator diode DZ2 the moon
Pole is connected with the first resistor R1 other end.That is, setting the second voltage-regulator diode DZ2 and the 3rd in control circuit 30
Resistance R3 reverse parallel connections.
In one embodiment of the invention, as shown in Fig. 2 the first triode can be NPN triode.
According to one embodiment of present invention, as shown in Fig. 2 triggers circuit 20 includes：Diac D1, the 5th resistance
R5, the second electric capacity C2 and the 6th resistance R6.
Wherein, diac D1 first end is used as the first end of triggers circuit 20, diac D1 the second end
It is used as the 3rd end of triggers circuit 20；5th resistance R5 one end is connected with diac D1 first end, the 5th resistance R5
The other end as triggers circuit 20 the second end；Second electric capacity C2 one end is connected with the 5th resistance R5 other end, and second
The electric capacity C2 other end is connected with diac D1 the second end；6th resistance R6 is connected in parallel with the second electric capacity C2.
Specifically, as shown in Fig. 2 diac D1 can be bidirectional trigger diode.
In summary, the start control circuit of the load motor proposed according to embodiments of the present invention, in single phase ac
Turned on during electric motor starting by controlling triggers circuit to export trigger signal to gate-controlled switch with triggering gate-controlled switch so that motor rises
Dynamic loop conducting, realization is started to load motor, and control circuit passes through after load motor completes to start
Triggers circuit is controlled to stop output trigger signal so that gate-controlled switch is turned off, so that electric motor starting loop disconnects, so in motor
By the disconnection in electric motor starting loop after starting, accomplish starting resistance idle substantially, so as to avoid electric motor starting loop in electricity
The energy waste for producing power consumption when machine is run and causing, reduces power consumption, improves efficiency grade, energy-conserving and environment-protective.
As shown in figure 3, the embodiment of the present invention also proposed a kind of compressor assembly 200, it includes above-mentioned single-phase alternating current
The start control circuit 100 of machine.
The compressor assembly proposed according to embodiments of the present invention, passes through above-mentioned start control circuit so that electric motor starting is complete
Into rear disconnection electric motor starting loop, by the disconnection in electric motor starting loop so after electric motor starting, accomplish starting resistance substantially
Idle, so that the energy waste for avoiding electric motor starting loop from producing power consumption in motor operation and causing, reduces power consumption,
Improve efficiency grade, energy-conserving and environment-protective.
As shown in figure 4, the embodiment of the present invention also proposed a kind of refrigeration plant 300, it includes above-mentioned compressor system
200。
Motor is disconnected after the completion of refrigeration plant according to embodiments of the present invention, electric motor starting that can be in compressor assembly
Start loop, by the disconnection in electric motor starting loop so after electric motor starting, accomplishes PTC resistor idle, so as to keep away substantially
Exempt from the energy waste that electric motor starting loop produces power consumption in motor operation and caused, reduce power consumption, improve efficiency etc.
Level, energy-conserving and environment-protective.
In embodiments of the present invention, refrigeration plant can be refrigerating refrigerator.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. a kind of start control circuit of load motor, it is characterised in that including：
Electric motor starting loop, the electric motor starting loop includes starting resistance and gate-controlled switch, and one end of the starting resistance leads to
The auxiliary winding crossed in the load motor is connected to the first end of AC power, the first end of the gate-controlled switch with it is described
The other end of starting resistance is connected, and the second end of the gate-controlled switch is connected with the second end of the AC power；
Triggers circuit, the first end of the triggers circuit is connected with the control end of the gate-controlled switch, and the of the triggers circuit
Two ends are connected with the second end of the gate-controlled switch and the second end of the AC power respectively, and the triggers circuit is to control
The gate-controlled switch on or off；
Control circuit, the first end of the control circuit respectively with the other end of the starting resistance and the gate-controlled switch the
One end is connected, and the second end of the control circuit is connected with the 3rd end of the triggers circuit, and the control circuit is in the list
The triggers circuit is controlled to export trigger signal to the gate-controlled switch to trigger the gate-controlled switch during cross streams electric motor starting
Conducting, the electric motor starting loop turns on to start the load motor, and complete in the load motor
The control circuit exports the trigger signal so that the gate-controlled switch by controlling the triggers circuit to stop after into starting
Shut-off, the electric motor starting loop disconnects.
2. the start control circuit of load motor according to claim 1, it is characterised in that the gate-controlled switch is
Bidirectional triode thyristor.
3. the start control circuit of load motor according to claim 1 or 2, it is characterised in that the control electricity
Road includes：
Rectifier bridge, the first exchange end of the rectifier bridge is as the first end of the control circuit, and the second of the rectifier bridge hands over
End is flowed as the second end of the control circuit；
First resistor, one end of the first resistor is connected with the first DC terminal of the rectifier bridge；
Second resistance, one end of the second resistance is connected with the first DC terminal of the rectifier bridge；
3rd resistor, one end of the 3rd resistor is connected with the other end of the first resistor, the 3rd resistor it is another
End is connected with the second DC terminal of the rectifier bridge；
First electric capacity, one end of first electric capacity other end respectively with the first resistor and one end of the 3rd resistor
It is connected；
4th resistance, one end of the 4th resistance is connected with the other end of first electric capacity, the 4th resistance it is another
End is connected with the second DC terminal of the rectifier bridge；
First triode, the base stage of first triode respectively with the other end of first electric capacity and the 4th resistance
One end is connected, and the emitter stage of first triode is connected with the second output end of the rectifier bridge；
First voltage-regulator diode, the anode of first voltage-regulator diode is connected with the colelctor electrode of first triode, described
The negative electrode of first voltage-regulator diode is connected with the other end of the second resistance.
4. the start control circuit of load motor according to claim 3, it is characterised in that the control circuit is also
Including：
Second voltage-regulator diode, the anode of second voltage-regulator diode is connected with the second DC terminal of the rectifier bridge, described
The negative electrode of second voltage-regulator diode is connected with the other end of the first resistor.
5. the start control circuit of load motor according to claim 3, it is characterised in that first triode
For NPN triode.
6. the start control circuit of load motor according to claim 1, it is characterised in that the triggers circuit bag
Include：
Diac, the first end of the diac is used as the first end of the triggers circuit, the diac
The second end as the triggers circuit the 3rd end；
5th resistance, one end of the 5th resistance is connected with the first end of the diac, the 5th resistance it is another
One end as the triggers circuit the second end；
Second electric capacity, one end of second electric capacity is connected with the other end of the 5th resistance, second electric capacity it is another
End is connected with the second end of the diac；
6th resistance, the 6th resistance is connected in parallel with second electric capacity.
7. the start control circuit of load motor according to claim 6, it is characterised in that the diac
For bidirectional trigger diode.
8. a kind of compressor assembly, it is characterised in that including the load motor according to any one of claim 1-7
Start control circuit.
9. a kind of refrigeration plant, it is characterised in that including compressor assembly according to claim 8.
10. refrigeration plant according to claim 9, it is characterised in that the refrigeration plant is refrigerating refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385050.XA CN107086822B (en) | 2017-05-26 | 2017-05-26 | Starting control circuit of single-phase alternating current motor, compressor system and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385050.XA CN107086822B (en) | 2017-05-26 | 2017-05-26 | Starting control circuit of single-phase alternating current motor, compressor system and refrigeration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107086822A true CN107086822A (en) | 2017-08-22 |
| CN107086822B CN107086822B (en) | 2023-08-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710385050.XA Active CN107086822B (en) | 2017-05-26 | 2017-05-26 | Starting control circuit of single-phase alternating current motor, compressor system and refrigeration equipment |
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