CN206246328U - A kind of compressor of air conditioner controls circuit and air-conditioner - Google Patents
A kind of compressor of air conditioner controls circuit and air-conditioner Download PDFInfo
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- CN206246328U CN206246328U CN201621219319.4U CN201621219319U CN206246328U CN 206246328 U CN206246328 U CN 206246328U CN 201621219319 U CN201621219319 U CN 201621219319U CN 206246328 U CN206246328 U CN 206246328U
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Abstract
The utility model provides a kind of compressor Control Cprant and air-conditioner, by setting the reactor with multiple taps in the current supply circuit of compressor, by multiple sub-control units in Access Control unit, can be in compressor start, the some or all of winding of control reactor is accessed in compressor electronic control loop, the harmonic wave produced during to compressor operating is filtered, avoid in the case of input voltage is relatively low, compressor causes to load the operating voltage reduction on compressor because reactor whole winding access produces partial pressure on startup, cause the abnormal problem of compressor start, the winding of reactor is also acted as and is filtered effect to the harmonic wave that compressor operating is produced on startup simultaneously, improve the reliability of compressor Control Cprant.
Description
Technical field
The utility model is related to field of air conditioner control, more particularly to a kind of compressor of air conditioner control circuit and air-conditioner.
Background technology
Air-conditioner is operated under the severe operating mode of comparing, and such as ambient environment temperature regional requirements refrigerating capacity high meets and wants
Ask, now need the compressor horsepower of matching with respect to wanting big under other nominal situations, compressor continuous firing is in current state
Under harmonic wave can be produced to disturb, to the strict area of some EMC requirements in order to pass through IEC EMC harmonic current standards, some air-conditionings
Need the reactor circuit for increasing certain inductance value to be filtered with to harmonic wave, tested by harmonic current, but because increased electricity
The inductance value that anti-device is present can cause partial pressure in the case of the high current of compressor start, and the alternating voltage being particularly input into is relatively low
When, cause supply voltage during compressor start not enough, influence the startability of air-conditioner.
The above is only used for auxiliary and understands the technical solution of the utility model, does not represent and recognizes that the above is existing
Technology.
Utility model content
Main purpose of the present utility model is to provide a kind of compressor of air conditioner control circuit, it is therefore intended that solved due to existing
Have in technology to solve to produce harmonic wave to produce interference to access reactor in compressor current supply circuit in circuit during compressor operating
It is filtered, but in compressor start because the partial pressure of reactor can cause the abnormal problem of compressor start.
To achieve the above object, a kind of compressor of air conditioner control circuit that the utility model is provided,
Including the driven compressor module being series in compressor current supply circuit, the control being connected with driven compressor module
Module, the control module control driven compressor module conducting, AC power is provided with for compressor operating, and its feature exists
In the compressor of air conditioner control circuit also includes the filtration module being connected with control module, and the filtration module includes reactance
Device and Access Control unit；
The reactor is the reactor with tap, and the tap is multiple, and the two ends of the reactor are series at institute
In stating compressor current supply circuit；
The Access Control unit includes multiple sub-control units corresponding with tap, and each described sub-control unit has
One input and two output control terminals, wherein multiple output ports correspondence of the control module is connected with the input,
One output control terminal is connected with a tap of the reactor, and another output control terminal is all connected to the reactor
One end, the control module by the multiple sub-control units in Access Control unit, control the reactor section or
The harmonic wave produced when in whole windings access compressor current supply circuits to compressor operating is filtered.
Preferably, the compressor of air conditioner control circuit also includes current acquisition module, an input of the control module
Port is connected with the current acquisition module；The operating current of the current acquisition module collect and process machine, the control module
After compressor normally starts, the operating current size according to compressor produces corresponding control signal, to control the reactance
The harmonic wave produced when in some or all of winding access compressor current supply circuit of device to compressor operating is filtered.
Preferably, the compressor of air conditioner control circuit also includes voltage detection module, an input of the control module
Port is connected with the voltage detection module；The voltage detection module detects the AC-input voltage of compressor current supply circuit
Value, the control module produces control signal according to the size of the magnitude of voltage, in compressor start, to control the reactance
The harmonic wave produced when in the part winding of device or whole winding access compressor current supply circuits to compressor operating is filtered.
Preferably, in compressor start, when described ac voltage is less than preset value, the control module control
In reactor in default winding access compressor current supply circuit；Wherein described default winding is inductance value in the reactor
Minimum winding.
Preferably, the compressor of air conditioner control circuit also includes temperature detecting module, an input of the control module
Port is connected with the temperature detecting module；The temperature detecting module detects the evaporator tube temperature of air-conditioner, the control
Module is according to the difference of the evaporator tube temperature value in the temperature detecting module collect and process machine start-up course and before startup
When the size of absolute value exceedes preset value, control module produces control signal according to the size of the current value, with compressor
After normal startup, produced when in the control reactor section or whole winding access compressor current supply circuits to compressor operating
Raw harmonic wave is filtered.
Preferably, the sub-control unit includes switch element and the driver element being connected with the switch element, described
The input of driver element is connected with the control module, and described switch element one end is connected with the tap terminals of the reactor,
The other end connects one end of the reactor, and the control module passes through cutting for the on off state of driver element controlling switch unit
Change, with some or all of winding access compressor current supply circuit for controlling the reactor.
Preferably, the driver element includes the first triode and first resistor, and the switch element includes the first relay
Device, the contact two ends of first relay are connected in parallel on the tap of reactor and one end of reactor winding, the relay
Driving coil one end connects DC power anode, and other end connects the colelctor electrode of the first triode, first triode
Grounded emitter, base stage connection first resistor one end of first triode, the other end and the control mould of the first resistor
Block is connected.
To achieve the above object, the utility model also provides a kind of air-conditioner, and the air-conditioner includes above-mentioned air conditioner compressed
Machine controls circuit.
The compressor of air conditioner control circuit that the utility model is provided, by setting band multiple in the current supply circuit of compressor
The reactor of tap, by multiple sub-control units in Access Control unit, in compressor start, can control the portion of reactor
Point or during whole winding accesses compressor electronic control loop, the harmonic wave produced during to compressor operating is filtered, it is to avoid
In the case of input voltage is relatively low, compressor causes to load compressor because reactor whole winding accesses generation partial pressure on startup
On operating voltage reduction, cause the abnormal problem of compressor start, at the same on startup the winding of reactor also act as it is right
The harmonic wave that compressor operating is produced is filtered effect, improves the reliability of compressor Control Cprant.
Brief description of the drawings
The structure and physical circuit schematic diagram of the compressor of air conditioner control circuit that Fig. 1 is provided for the utility model embodiment；
The first embodiment schematic flow sheet of the compressor of air conditioner control method that Fig. 2 is provided for the utility model embodiment；
The second embodiment schematic flow sheet of the compressor of air conditioner control method that Fig. 3 is provided for the utility model embodiment；
The 3rd embodiment schematic flow sheet of the compressor of air conditioner control method that Fig. 4 is provided for the utility model embodiment.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
The cooler compressor for describing to be proposed according to the utility model embodiment with reference to the accompanying drawings controls circuit.
The compressor of air conditioner control circuit structural representation that Fig. 1 is provided for the utility model, for convenience of description, only shows
Part related to the present embodiment, as shown in Figure 1：
A kind of compressor of air conditioner control circuit that the utility model first embodiment is provided, including be series at compressor and power
Driven compressor module 20 in loop, the control module 10 being connected with driven compressor module 20, the control pressure of control module 10
Contracting machine drive module 20 is turned on, and AC power is provided with for compressor operating, and compressor of air conditioner control circuit also includes and control
The filtration module 30 of the connection of module 10, filtration module 30 includes reactor L1 and Access Control unit 301；
Reactor L1 is the reactor with tap, and tap is multiple, specially two and two or more, reactor L1's
Two ends are series in compressor current supply circuit；
Access Control unit 301 includes multiple sub-control units corresponding with tap, and each described sub-control unit has
One input and two output control terminals, wherein multiple output ports correspondence of the control module is connected with input, one is defeated
Go out control end to be connected with a tap of reactor L1, another output control terminal is all connected to one end of reactor L1, control module
10 by the multiple sub-control units in Access Control unit 301, control some or all of windings of the reactor L1 to access
The harmonic wave produced when in compressor current supply circuit to compressor operating is filtered.
The tap of reactor L1 as shown in Figure 1 is 3, and Access Control unit 301 pairs should have three sub-control units to distinguish
It is 3011,3012,3013, each sub-control unit has an input and two control ends, is with sub-control unit 3011
Example, its input is connected to one of port of multiple output ports of control module 10, and its output end has two, and one end connects
One of tap of reactor L1 is connect, the other end is all connected to one end of reactor L1 with one end of other sub-control units,
Right-hand member as being all connected to reactor L1 in Fig. 1 is close to one end of compressor, it is of course also possible to be all connected to a left side for reactor
End, control module 10 is closed or turned off by the tap of the controllable reactor L1 of these three sub-control units with other end,
In compressor electronic control loop being accessed with some or all of winding for controlling reactor L1, the harmonic wave produced during to compressor operating
It is filtered.
The compressor of air conditioner control circuit that the utility model embodiment is provided, is set by the current supply circuit of compressor
Reactor with multiple taps, by multiple sub-control units in Access Control unit, can control reactance in compressor start
The some or all of winding of device is accessed in compressor electronic control loop, and the harmonic wave produced during to compressor operating is filtered, and keeps away
Exempt from the case of input voltage is relatively low, compressor causes loading because reactor whole winding accesses generation partial pressure on startup
Operating voltage reduction on compressor, causes the abnormal problem of compressor start, while the winding of reactor is also on startup
Play and effect is filtered to the harmonic wave that compressor operating is produced, improve the reliability of compressor Control Cprant.
As second embodiment of the present utility model, further as shown in figure 1, each sub-control unit also includes that switch is single
Unit and the driver element that is connected with the switch element, such as figure by taking sub-control unit 3013 as an example, also including switch element 30131
With driver element 30132, one of tap of one end linked reactor L1 of switch element 30111, the other end and other sub- controls
One end of unit processed is all connected to one end of reactor L1, and driver element 30132 is connected with control module 10, is connected therewith with driving
The on off state switching of the switch element 30131 for connecing：When 10 controlling switch unit of control module 30131 is closed, reactor L1
In the part winding in parallel with switch element 30131 short circuit from compressor current supply circuit interrupted from compressor current supply circuit
Open, now in the remainder winding access compressor current supply circuit of reactor L1；When the controlling switch unit of control module 10
During 30131 disconnection, now in whole windings access compressor current supply circuit of reactor L1.
Further compressor of air conditioner as described in Figure 1 controls the physical circuit knot of circuit, its driver element and switch element
Structure is as follows：By taking switch element 30131 and driver element 30132 as an example, driver element 30132 includes the first triode Q23 and the
One resistance R56, switch element 30131 includes the switch one end linked reactor L1 of the first relay RY3, the first relay RY3
One of tap A, one end of the other end and other sub-control units is all connected to one end of reactor L1, the first relay
Driving coil one end connection dc source 12V positive poles of RY3, other end connects the colelctor electrode of the first triode Q23, the one or three
The grounded emitter of pole pipe Q23, base stage connection first resistor R56 one end of the first triode Q23, first resistor R56 is in addition
One end is connected with the COMP_start3 pins that control module 10 is MCU.
The particular circuit configurations of other driver elements and switch element and switch element 30131 and driver element 30132
It is identical, will not be repeated here.
Driven compressor module 20 includes the second relay RY4, the second triode Q20, second resistance R53, the second relay
The switch ends of device RY4 are series in compressor current supply circuit, the colelctor electrode of the second triode Q20 and the second relay RY4's
Coil-end is connected, and base stage is connected with second resistance R53 one end, and the second resistance R53 other ends draw with the COMP of control module 10MCU
Pin is connected.
When the COMP_start3 pins of MCU export high level, control the first triode Q23 base stages conducting, and then control
The coil of the first relay RY3 is connected with dc source 12V positive poles, the switch closure of the first relay RY3, now reactor L1
Short circuit, i.e. reactor L1 taps A to its winding are formed in compressor current supply circuit with the first one section of relay RY1 switch in parallel
Right-hand member this section broken from compressor current supply circuit, the left end of its tap A to winding this section accesses compressor current supply circuit.Together
Should MCU COMP_start2 pins output high level when, this section of the right-hand member of reactor L1 taps B to its winding is from compressor
Current supply circuit breaks, the left end of its tap B to winding this section access compressor current supply circuit；When the COMP_start1 of MCU draws
During pin output high level, the right-hand member of reactor L1 taps C to its winding this section breaks from compressor current supply circuit, its tap C
To the left end of winding, this section accesses compressor current supply circuit.Therefore by an output high level in these three pins of MCU, can
Compressor current supply circuit is respectively connected to this one end for controlling each tap A, B, C and reactor winding left end in reactor L1 respectively
In.
As 3rd embodiment of the present utility model, further as shown in figure 1, the compressor of air conditioner control of the present embodiment offer
Circuit processed also includes the voltage detection module 70 being connected with control module, and an input port and the voltage of control module 10 are examined
Module 70 is surveyed to connect；Voltage detection module 70 detects the AC-input voltage value of compressor current supply circuit, the basis of control module 10
The size of the magnitude of voltage produces control signal, in compressor start, to control the part winding or whole of reactor L1
The harmonic wave produced when in winding access compressor current supply circuit to compressor operating is filtered.
Such as voltage detecting circuit detection compressor of the voltage detection module 70 based on voltage detecting transformer CT2 in Fig. 1
The virtual value of the magnitude of voltage of current supply circuit and compressor operating, specially alternating voltage, MCU is by voltage detection module 70 defeated
Inbound port V_CHECK obtain compressor operational voltage value, electric current during due to compressor start than larger, if on startup
Accessing reactor L1 produces partial pressure to cause that the supply voltage of compressor is reduced, if being reduced to the standard operating voltage value of compressor
When following, the startup ability of compressor can be influenceed, therefore the exchange of compressor current supply circuit is detected by voltage detection module 70
Input voltage value is the operational voltage value of compressor, and control module 10 is further according to the specific big of currently detected operational voltage value
Small, the suitable winding determined by tap in reactor by controlling the sub-control unit 301 of filtration module 30 to control is accessed
In compressor current supply circuit.Different windings its inductance value in due to reactor is of different sizes, its winding in compressor start
Partial pressure in compressor current supply circuit is different, therefore is accessed by selecting one in reactor suitable winding, can
Play the startup ability for not influenceing compressor due to the partial pressure of its winding, but can realize producing it in compressor start it is humorous
Ripple is filtered.
Specifically, in actually control, the AC-input voltage that control module 10 is detected according to voltage detection module 70
The size of value, when less than pre-set threshold value, during default winding accesses compressor current supply circuit in control reactor, this it is default around
Group is the minimum winding of inductance value in reactor.When AC-input voltage is too low, a default winding is now selected to access, this
Winding is that the inductance value of all windings in reactor is minimum, can cause that the partial pressure of its winding is reduced to minimum so that be carried in
The voltage of compressor is remained to so that compressor normal work, at the same the winding of reactor also can to compressor operating when produce it is humorous
Ripple is filtered；And when AC-input voltage is higher than normally preset value, reactor can be selected all to access, due to now
Partial pressure on reactor does not influence compressor normal work, and reactor when all accessing except that can be produced to compressor operating
Harmonic wave is filtered, and also can simultaneously start the peak point current produced during to compressor start and suppress, and makes compressor start more
Plus it is reliable, and this kind of control is relatively easy.
Further, in actually control, the exchange that control module 10 is detected according to voltage detection module 70 is input into electricity
The difference of the size of pressure value, in default winding access compressor current supply circuit different in control reactor.It is specific to pass through real
If tested it was determined that when current compressor voltage value is higher, can be by the control reactor of control module 10
The larger winding of inductance value is accessed in compressor current supply circuit, although the partial pressure that its winding is produced is higher, but due to supply voltage
It is higher so that the supply voltage for finally loading on the compressor can meet the job requirement of compressor, it is ensured that compressor can be just
Often start, if what is now selected is that the less winding of inductance value accesses compressor current supply circuit, the partial pressure that now winding is produced
Can be relatively low, in the case where supply voltage is higher, loading supply voltage on the compressor is still higher, causes in compression
Peak point current is high when machine starts, and is unfavorable for the work of compressor, and passes through to access the larger winding of inductance value, except partial pressure is relative
It is high so that loading supply voltage reduction on the compressor, and can also play in suppression compressor start peak value relatively high
The effect of electric current, can preferably improve the startability of compressor；And when current compressor voltage value is relatively low, Ke Yitong
Cross in the control control reactor of control module 10 in the less winding access compressor current supply circuit of inductance value, what its winding was produced
Partial pressure is relatively low, although supply voltage is relatively low, and loading supply voltage on the compressor remains to meet the job requirement of compressor, protects
Card compressor can normally start.AC-input voltage such as in MCU gets current compressor current supply circuit has virtual value
During for more than 240V, the switch that can export high level control relay RY1 by COMP_start1 pin is closed, reactor L1
In tap C and reactor L1 left ends windings section access compressor current supply circuit in；When voltage effective value is 210-240V
When, the switch that can export high level control relay RY2 by COMP_start2 pin is closed, tap B in reactor L1 and
The windings section of reactor L1 left ends is accessed in compressor current supply circuit；When voltage effective value is less than 210, can pass through
The switch closure of COMP_start3 pin output high level control relay RY3, the tap A and reactor L1 in reactor L1 is left
The windings section at end is accessed in compressor current supply circuit, because the inductance value of tap C and the winding of reactor L1 left ends is maximum, because
This its partial pressure is maximum, correspondence input voltage can be than higher range, and the inductance value of the winding of tap B and reactor L1 left ends
Take second place, can correspond to relatively low input voltage range, the inductance value of the winding of tap A and reactor L1 left ends is minimum, correspondence
Lower input voltage range, can meet compressor start with this and can play the harmonic wave produced in compressor operating again is carried out
Filter action.
When control module receives compressor start order, the exchange input electricity in the compressor current supply circuit for getting
Pressure value, the size according to its voltage produces control signal, and a suitable winding of control reactor L1 is linked into reactor and powers
In loop, then driven compressor module is controlled to turn on, compressor just starts to start.As shown in fig. 1, obtained according to it in MCU
One of switch closure of the size control relay RY1-RY3 of the AC-input voltage value for arriving, the one of control reactor L1
After individual suitable winding is linked into reactor current supply circuit, then high level is exported by COMP pin, the second triode Q20 of control leads
It is logical so that the switch closure of the second relay RY4, control AC-input voltage is powered to compressor, and compressor just starts to start,
In order to avoid the closure of relay RY1-RY3 and RY4 be closed at or the two closure interval time is too short causes relay
Excessive sparking is produced to damage relay contact switch during switch closure, can be with the one short time of time delay such as after the former closes
It is closed again after control within 2 seconds.
The compressor of air conditioner provided by the utility model embodiment controls circuit, is detected by increasing voltage detection module
Magnitude of voltage during compressor operating, in compressor start, by judging the size of its magnitude of voltage, control module control reactor
The suitable winding of L1 is linked into compressor current supply circuit, it is ensured that in the operating voltage of different compressors, compressor can be just
Often start, moreover it is possible to which the harmonic wave produced during to compressor operating is filtered, and with respect to embodiment one, can further increase compressor
Control the reliability of circuit.
As four embodiment of the present utility model, further as shown in figure 1, the compressor of air conditioner that the present embodiment is provided is controlled
Circuit also includes the current acquisition module 60 being connected with controller module 10, during the detection compressor operating of current acquisition module 60
Current value, after compressor start, control module 10 produces corresponding control signal according to the operating current size of compressor, with
The harmonic wave produced when in some or all of winding access compressor current supply circuits of control reactor L1 to compressor operating is carried out
Filtering.
During after the compressor start, because the working environment residing for air-conditioner includes indoor and outdoors temperature
Difference, operating current during its work is different, such as when outdoor and indoor environment temperature is higher, the work of its compressor
Electric current is high, and when outdoor environment temperature is low, the operating current of its compressor is relatively low, and by reactor to compressor operating
During the harmonic wave that produces when being filtered, the inductance values for needing matching different for different current values can be only achieved relatively
Good filter effect, is not that the bigger filter effect of inductance value is better.Therefore the present embodiment control module 10 is adopted by electric current
Collection module 60 detects the size of compressor operating current value, and a suitable winding in control reactor L1 accesses compressor and supplies
It is filtered in electrical circuit, relatively good filter effect can be played.
As current detection circuit of the current detection module 60 based on Current Transmit 1 detects the work of compressor in Fig. 1
Make electric current, MCU obtains the working current value of compressor, the same embodiment of control during compressor start by current detection module 60
Described in three, after compressor start, compressor obtains the working current value of compressor by current detection module 60 simultaneously, and MCU exists
The one short time of time delay timing, compressor obtained the work of compressor by current detection module 60 simultaneously as during 1 minute
Current value, if air-conditioner is working properly, the operating current of compressor can be stablized more than some definite value, it can be determined that be
Compressor has been started up normally, and the different types of compressor that this electric current stationary value size can be selected according to air-conditioner passes through
Experiment determines that, such as the compressor matched with the air-conditioner of 2, its operating current is more than more than 4A in working stability, in MCU
Time delay timing judges that compressor normally starts when the operating current of compressor is detected in more than 4A after 1 minute.In pressure
After contracting machine normally starts, now MCU is further continued for being obtained by current detection module 60 working current value of compressor, root
According to the size of current in its compressor operation, the different windings of control reactor L1 are linked into right in compressor current supply circuit
The harmonic wave produced during compressor operating is filtered.For example when compressor operating electric current is detected in 4-5A, MCU controls
The switch closure of COMP_start3 pin output high level control relay RY3, the tap A and reactor L1 in reactor L1 is left
The windings section at end is accessed in compressor current supply circuit；When the operating current of compressor is detected in 5-7A, MCU controls
The switch closure of COMP_start2 pin output high level control relay RY2, the tap B and reactor L1 in reactor L1 is left
The windings section at end is accessed in compressor current supply circuit, while when MCU is short default in control relay RY2 switches closure one
Between as after 1 second, control RY3's switches off, and disconnects the original tap A for accessing, it is ensured that only tap B and reactor L1 left ends
Windings section is accessed in compressor current supply circuit；When the operating current of compressor is detected in more than 7A, MCU controls COMP_
The switch closure of start1 pin output high level control relay RY1, tap C and reactor L1 left ends in reactor L1 around
Group part is accessed in compressor current supply circuit, while in MCU in control relay RY1 switch one short Preset Time such as 1 of closure
After second, control RY2's switches off, and disconnects the original tap B for accessing, it is ensured that the winding of only tap C and reactor L1 left ends
Access in compressor current supply circuit part.Because the winding inductance amount of the tap A in reactor L1 and reactor L1 left ends is minimum,
Now compressor operating electric current is relatively low；And the corresponding winding inductance amounts of tap B are relatively large, now compressor operating electric current is relative
It is high；The corresponding winding inductance amounts of tap C are maximum, and now compressor operating electric current is relatively higher, so by different work electricity
Flow valuve selects different windings, can reach relatively good filter effect.
The compressor of air conditioner provided by the utility model embodiment controls circuit, is detected by current detection module and compressed
Current value when machine works, after compressor normally starts, control module produces corresponding according to the operating current size of compressor
Control signal, produced during controlling reactor section or whole winding to access in compressor current supply circuit to compressor operating
Harmonic wave be filtered, the size that can be so directed to compressor operating electric current selects a most suitable winding to access compressor to supply
Electrical circuit, can play relatively good filter effect.
It should be noted that above-mentioned fourth embodiment of the present utility model is protection compressor of air conditioner control circuit also including
Current acquisition module, after compressor start, control module produces corresponding control signal according to the operating current size of compressor,
The harmonic wave produced during with controlling reactor section or whole winding access compressor current supply circuits to compressor operating is carried out
Filtering；And above-mentioned 3rd embodiment of the present utility model is to protect compressor of air conditioner control circuit also including voltage detection module,
Control module produces control signal according to the size of the magnitude of voltage, with compressor start, control the part of reactor around
The harmonic wave produced when in group or whole winding access compressor current supply circuits to compressor operating is filtered, above-mentioned two reality
The scheme for applying example protection can be with individualism, the voltage detecting mould that can be mentioned using 3rd embodiment such as in compressor start
Block, for controlling reactor according to the size of its magnitude of voltage for detecting, and can not use the 4th implementation after compressor start
The current acquisition module that example is mentioned, using the control mode of prior art as simply controlled whole section of access compressor of reactor to power
Loop；Or just have in compressor start inductance value in the control mode of prior art such as simply control reactor it is minimum around
Group section access compressor current supply circuit, and the current acquisition module mentioned using fourth embodiment after compressor start, according to
The compressor operating size of current control reactor winding of current acquisition module detection, the scheme of the above is all of the present utility model
Within protection domain.
As five embodiment of the present utility model, based on fourth embodiment of the present utility model, further as shown in figure 1,
The present embodiment provide compressor of air conditioner control circuit also include temperature detecting module 50, an input port of control module 10 with
The temperature detecting module 50 is connected；Temperature detecting module 50 detects the evaporator tube temperature of air-conditioner, the basis of control module 10
In the collect and process machine start-up course of temperature detecting module 50 and start before evaporator tube temperature value difference absolute value it is big
It is small more than preset value when, the size of the compressor operating current value that control module 10 is gathered according to current acquisition module 60 produces control
Signal processed, after compressor normally starts, to control the reactor section or whole windings to access compressor current supply circuit
In to compressor operating when the harmonic wave that produces be filtered.
As temperature detecting module 50 detects evaporator by the sensor detection circuit based on temperature sensor R19 in Fig. 1
Pipe temperature, MCU obtains the temperature value of evaporator tube by temperature detecting module 50, before compressor must establish beginning startup by cable, now
MCU obtains air-conditioner evaporator pipe initial temperature value by temperature detecting module 50 simultaneously, when compressor must establish the beginning by cable and start,
During one such as 1 minute short time of time delay timing, MCU obtains air-conditioner evaporator to MCU by temperature detecting module 50 simultaneously
Pipe temperature value, by taking air-conditioner operation refrigeration mode as an example, with the refrigerating operaton of air-conditioner after compressor start, evaporator tube temperature
Angle value can be gradually reduced, can by experimental monitoring with compressor start when initial temperature value compare decline temperature value exceed
During preset value, judge that air-conditioner refrigeration is normally run, compressor normally starts, and can such as set this preset value as 10 DEG C,
After MCU time delays timing 1 minute, and check evaporator tube temperature value with respect to initial temperature value differ by more than 10 DEG C when, sentence
Disconnected cooler compressor is had been started up normally, and referring next to the scheme described in embodiment 4, MCU is obtained by current detection module 60
The working current value of compressor is taken, according to the size of compressor operating current value, the different windings in control reactor L1 are accessed
The harmonic wave produced when in compressor current supply circuit to compressor operating is filtered.
The compressor of air conditioner provided by the utility model embodiment controls circuit, and air-conditioning is detected by temperature detecting module
The evaporator tube temperature of device, the evaporator tube temperature before control module starts according to temperature detecting module collect and process machine and after startup
When the size of the absolute value of the difference of angle value exceedes preset value, the compressor operating that control module is gathered according to current acquisition module
The size of current value produces control signal, after compressor start, to control the reactor section or whole windings to access
The harmonic wave produced when in compressor current supply circuit to compressor operating is filtered.With respect to example IV, can guarantee that in compressor
After starting stabilization, the compressor operating current value for detecting is stabilization and accurate, the then size control according to compressor current
The harmonic wave produced when in reactor section processed or whole winding access compressor current supply circuits to compressor operating is filtered,
Improve the reliability of compressor of air conditioner control circuit work.
The utility model also provides a kind of cooler compressor control method.
Compressor of air conditioner based on above-described embodiment protection controls circuit, and with reference to such as Fig. 2, Fig. 2 is provided for the present embodiment
A kind of flow chart of compressor of air conditioner control method, comprises the following steps：
Step S10, when control module detects compressor start instruction, the exchange input in detection compressor current supply circuit
Magnitude of voltage, the size according to voltage produces control signal, and compression is accessed with the part winding or whole windings that control reactor
The harmonic wave produced when in machine current supply circuit to compressor operating is filtered；
Such as voltage detecting circuit detection compressor of the voltage detection module 70 based on voltage detecting transformer CT2 in Fig. 1
The virtual value of the magnitude of voltage of current supply circuit and compressor operating, specially alternating voltage, MCU is by voltage detection module 70 defeated
Inbound port V_CHECK obtain compressor operational voltage value, electric current during due to compressor start than larger, if on startup
Accessing reactor L1 produces partial pressure to cause that the supply voltage of compressor is reduced, if being reduced to the standard operating voltage value of compressor
When following, the startup ability of compressor can be influenceed, therefore the exchange of compressor current supply circuit is detected by voltage detection module 70
Input voltage value is the operational voltage value of compressor, and control module 10 is further according to the specific big of currently detected operational voltage value
Small, the suitable winding determined by tap in reactor by controlling the sub-control unit 301 of filtration module 30 to control is accessed
In compressor current supply circuit.Different windings its inductance value in due to reactor is of different sizes, its winding in compressor start
Partial pressure in compressor current supply circuit is different, therefore is accessed by selecting one in reactor suitable winding, can
Play the startup ability for not influenceing compressor due to the partial pressure of its winding, but can realize producing it in compressor start it is humorous
The filtering that ripple is carried out.
Specifically, in actually control, the AC-input voltage that control module 10 is detected according to voltage detection module 70
The size of value, when less than pre-set threshold value, during default winding accesses compressor current supply circuit in control reactor, this it is default around
Group is the minimum winding of inductance value in reactor.When AC-input voltage is too low, a default winding is now selected to access, this
Winding is that the inductance value of all windings in reactor is minimum, can cause that the partial pressure of its winding is reduced to minimum so that be carried in
The voltage of compressor is remained to so that compressor normal work, at the same the winding of reactor also can to compressor operating when produce it is humorous
Ripple is filtered；And when AC-input voltage is higher than normally preset value, reactor can be selected all to access, due to now
Partial pressure on reactor does not influence compressor normal work, and reactor when all accessing except that can be produced to compressor operating
Harmonic wave is filtered, and also can simultaneously start the peak point current produced during to compressor start and suppress, and makes compressor start more
Plus it is reliable, and this kind of control is relatively easy.Further, in actually control, control module 10 is according to voltage detection module 70
The difference of the size of the AC-input voltage value for detecting, different default windings accesses compressor and powers back in control reactor
Lu Zhong.It is specific by experiment it was determined that when if current compressor voltage value is higher, can be by control module 10
During the larger winding of inductance value accesses compressor current supply circuit in control control reactor, although the partial pressure that its winding is produced compared with
Height, but because supply voltage is higher, loading supply voltage on the compressor remains to meet the job requirement of compressor, it is ensured that pressure
Contracting machine can normally start, if what is now selected is that the less winding of inductance value accesses compressor current supply circuit, now winding
The partial pressure of generation can be relatively low, and in the case where supply voltage is higher, loading supply voltage on the compressor is still higher,
Cause in compressor start that peak point current is high, be unfavorable for the work of compressor, and pass through to access the larger winding of inductance value, except
Partial pressure is relatively high so that loading supply voltage reduction on the compressor, and can also play relative in suppression compressor start
The effect of peak point current high, can preferably improve the startability of compressor；And it is relatively low in current compressor voltage value
When, during compressor current supply circuit can be accessed by the less winding of inductance value in the control reactor of control module 10, its
The partial pressure that winding is produced is relatively low, although supply voltage is relatively low, and loading supply voltage on the compressor remains to meet compressor
Job requirement, it is ensured that compressor can normally start.Exchange input electricity such as in MCU gets current compressor current supply circuit
When being pressed with virtual value for more than 240V, the switch that can export high level control relay RY1 by COMP_start1 pin is closed
Close, in the windings section access compressor current supply circuit of tap C and reactor L1 left ends in reactor L1；Work as voltage effective value
During for 210-240V, the switch that can export high level control relay RY2 by COMP_start2 pin is closed, reactor L1
In tap B and reactor L1 left ends windings section access compressor current supply circuit in；When voltage effective value is less than 210
When, the switch that can export high level control relay RY3 by COMP_start3 pin is closed, tap A in reactor L1 and
The windings section of reactor L1 left ends is accessed in compressor current supply circuit, due to tap C and the electricity of the winding of reactor L1 left ends
Sensibility reciprocal is maximum, therefore its partial pressure is maximum, correspondence input voltage can be than higher range, and tap B and reactor L1 left ends
The inductance value of winding takes second place, and can correspond to relatively low input voltage range, the inductance of the winding of tap A and reactor L1 left ends
Amount is minimum, the lower input voltage range of correspondence, and can meet compressor start with this can play the product in compressor operating again
Raw harmonic wave is filtered effect.
Step S20, control module control driven compressor module conducting, compressor starts start.
When control module receives compressor start order, the exchange input electricity in the compressor current supply circuit for getting
Pressure value, the size according to its voltage produces control signal, and a suitable winding of control reactor L1 is linked into reactor and powers
In loop, then driven compressor module is controlled to turn on, compressor just starts to start.As shown in fig. 1, obtained according to it in MCU
One of switch closure of the size control RY1-RY3 of the AC-input voltage value for arriving, of control reactor L1 is suitable
After winding is linked into reactor current supply circuit, then high level is exported by COMP pin, control the second triode Q20 conductings make
The switch closure of the second relay RY4 is obtained, control AC-input voltage is powered to compressor, just compressor starts to start, in order to
Avoid the closure in relay RY1-RY3 be closed at RY4 or the two closure interval time is too short causes relay switch
Excessive sparking is produced to damage relay contact switch during closure, can be with such as 2 seconds short time of time delay one after the former closes
It is closed again after control.
The compressor of air conditioner control method provided by the utility model embodiment, is detected by increasing voltage detection module
Magnitude of voltage during compressor operating, in compressor start, by judging the size of its magnitude of voltage, control module control reactor
Suitable winding be linked into compressor current supply circuit, it is ensured that in the operating voltage of different compressors, compressor can be normal
Start, moreover it is possible to which the harmonic wave produced during to compressor operating is preferably filtered, and with respect to embodiment one, can further increase pressure
Contracting machine controls the reliability of circuit.
Further, with reference to such as Fig. 3, Fig. 3 is the second embodiment of compressor of air conditioner control method of the present utility model
Flow chart, based on the first embodiment of above-mentioned the utility model cooler compressor control method, controls to compress in control module
Machine drive module is turned on, and after compressor starts starting step, is also included：
Step S30, control module obtains compressor operating current value, according to current value after compressor normally starts
Size produces corresponding control signal, to control reactor section or whole windings to access in compressor current supply circuit to compression
The harmonic wave that machine is produced when working is filtered.
During after the compressor start, because the working environment residing for air-conditioner includes indoor and outdoors temperature
Difference, operating current during its work is different, such as when outdoor and indoor environment temperature is higher, the work of its compressor
Electric current is high, and when outdoor environment temperature is low, the operating current of its compressor is relatively low, and by reactor to compressor operating
During the harmonic wave that produces when being filtered, the inductance values for needing matching different for different current values can be only achieved relatively
Good filter effect, is not that the bigger filter effect of inductance value is better.Therefore the present embodiment control module 10 is adopted by electric current
Collection module 60 detects the size of compressor operating current value, and a suitable winding in control reactor L1 accesses compressor and supplies
It is filtered in electrical circuit, relatively good filter effect can be played.
As current detection circuit of the current detection module 60 based on Current Transmit 1 detects the work of compressor in Fig. 1
Make electric current, MCU obtains the working current value of compressor, the same embodiment of control during compressor start by current detection module 60
Described in three, after compressor start, compressor obtains the working current value of compressor by current detection module 60 simultaneously, and MCU exists
The one short time of time delay timing, compressor obtained the work of compressor by current detection module 60 simultaneously as during 1 minute
Current value, if air-conditioner is working properly, the operating current of compressor can be stablized more than some definite value, it can be determined that be
Compressor has been started up normally, and the different types of compressor that this electric current stationary value size can be selected according to air-conditioner passes through
Experiment determines that, such as the compressor matched with the air-conditioner of 2, its operating current is more than more than 4A in working stability, in MCU
Time delay timing judges that compressor normally starts when the operating current of compressor is detected in more than 4A after 1 minute.In pressure
After contracting machine normally starts, now MCU is further continued for being obtained by current detection module 60 working current value of compressor, root
According to the size of current in its compressor operation, the different windings of control reactor L1 are linked into right in compressor current supply circuit
The harmonic wave produced during compressor operating is filtered.For example when compressor operating electric current is detected in 4-5A, MCU controls
The switch closure of COMP_start3 pin output high level control relay RY3, the tap A and reactor L1 in reactor L1 is left
The windings section at end is accessed in compressor current supply circuit；When the operating current of compressor is detected in 5-7A, MCU controls
The switch closure of COMP_start2 pin output high level control relay RY2, the tap B and reactor L1 in reactor L1 is left
The windings section at end is accessed in compressor current supply circuit, while when MCU is short default in control relay RY2 switches closure one
Between as after 1 second, control RY3's switches off, and disconnects the original tap A for accessing, it is ensured that only tap B and reactor L1 left ends
Windings section is accessed in compressor current supply circuit；When the operating current of compressor is detected in more than 7A, MCU controls COMP_
The switch closure of start1 pin output high level control relay RY1, tap C and reactor L1 left ends in reactor L1 around
Group part is accessed in compressor current supply circuit, while in MCU in control relay RY1 switch one short Preset Time such as 1 of closure
After second, control RY2's switches off, and disconnects the original tap B for accessing, it is ensured that the winding of only tap C and reactor L1 left ends
Access in compressor current supply circuit part.Because the winding inductance amount of the tap A in reactor L1 and reactor L1 left ends is minimum,
Now compressor operating electric current is relatively low；And the corresponding winding inductance amounts of tap B are relatively large, now compressor operating electric current is relative
It is high；The corresponding winding inductance amounts of tap C are maximum, and now compressor operating electric current is relatively higher, so by different work electricity
Flow valuve selects different windings, can reach relatively good filter effect.
The compressor of air conditioner control method provided by the utility model embodiment, is detected by current detection module and compressed
Current value when machine works, after compressor start, control module produces corresponding control according to the operating current size of compressor
Signal processed, what is produced during with controlling reactor section or whole winding access compressor current supply circuits to compressor operating is humorous
Ripple is filtered, and the size that can be so directed to compressor operating electric current selects a most suitable winding access compressor to power back
Road, can play relatively good filter effect.
Further, with reference to such as Fig. 4, Fig. 4 is the 3rd embodiment of compressor of air conditioner control method of the present utility model
Flow chart, based on the second embodiment of above-mentioned the utility model cooler compressor control method, in control module in compressor
After normal startup, also include before obtaining compressor operating current value step S30：
Step S201, control module obtains the evaporator tube temperature value of air-conditioner before compressor start, and in compressor
Evaporator tube temperature value is obtained in start-up course again；The evaporator temperature values obtained again during compressor start and pressure
When the absolute value of the difference of the evaporator temperature values before the startup of contracting machine exceedes preset value, judge that compressor normally starts.
As temperature detecting module 50 detects evaporator by the sensor detection circuit based on temperature sensor R19 in Fig. 1
Pipe temperature, MCU obtains the temperature value of evaporator tube by temperature detecting module 50, before compressor must establish beginning startup by cable, now
MCU obtains air-conditioner evaporator pipe initial temperature value by temperature detecting module 50 simultaneously, when compressor must establish the beginning by cable and start,
During one such as 1 minute short time of time delay timing, MCU obtains air-conditioner evaporator to MCU by temperature detecting module 50 simultaneously
Pipe temperature value, by taking air-conditioner operation refrigeration mode as an example, with the refrigerating operaton of air-conditioner after compressor start, evaporator tube temperature
Angle value can be gradually reduced, can by experimental monitoring with compressor start when initial temperature value compare decline temperature value exceed
During preset value, judge that air-conditioner refrigeration is normally run, compressor normally starts, and can such as set this preset value as 10 DEG C,
After MCU time delays timing 1 minute, and check evaporator tube temperature value with respect to initial temperature value differ by more than 10 DEG C when, sentence
Disconnected cooler compressor is had been started up normally, and referring next to the scheme described in embodiment 4, MCU is obtained by current detection module 60
The working current value of compressor is taken, according to the size of compressor operating current value, the different windings in control reactor L1 are accessed
The harmonic wave produced when in compressor current supply circuit to compressor operating is filtered.
The compressor of air conditioner control method provided by the utility model embodiment, air-conditioning is detected by temperature detecting module
The evaporator tube temperature of device, control module is according to the evaporator in temperature detecting module collect and process machine start-up course and before startup
The size of the absolute value of the difference of pipe temperature value exceed preset value when, judge that compressor normally starts, control module according to
Current acquisition module collection compressor operating current value size produce control signal, with control the reactor section or
The harmonic wave produced when in whole windings access compressor current supply circuits to compressor operating is filtered.With respect to example IV, energy
Ensure after compressor start is normal, the compressor operating current value for detecting is stable and accurate, then according to compressor
Produced when in the size control reactor section of electric current or whole winding access compressor current supply circuits to compressor operating
Harmonic wave is filtered, and improves the reliability of compressor of air conditioner control circuit work.
The utility model also provides a kind of air-conditioner.
In the present embodiment, described air-conditioner is except comprising all parts and control circuit mentioned in the prior art
Outward, circuit also is controlled including above-mentioned compressor of air conditioner, for controlling cooler compressor to work.The pressure of the air-conditioner of the present embodiment
Contracting machine controls circuit, by setting the reactor with multiple taps in the current supply circuit of compressor, controls the part of reactor
Or during whole windings access compressor electronic control loops, the harmonic wave produced during to compressor operating is filtered, it is to avoid defeated
Enter voltage it is relatively low in the case of, compressor on startup due to reactor whole windings access produce partial pressures cause loading compressor on
Operating voltage reduction, cause the abnormal problem of compressor start；And after compressor start, control module is according to compressor
Operating current size produce corresponding control signal, powered back with controlling reactor section or whole windings to access compressor
The harmonic wave produced when in road to compressor operating is filtered, and the size that can be so directed to compressor operating electric current selects one most
Suitable winding accesses compressor current supply circuit, can play relatively good filter effect.
Preferred embodiment of the present utility model is these are only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical fields, are similarly included in scope of patent protection of the present utility model.
Claims (8)
1. a kind of compressor of air conditioner controls circuit, including is series at the driven compressor module in compressor current supply circuit, with pressure
The control module of contracting machine drive module connection, the control module control driven compressor module conducting, thinks compressor operating
There is provided AC power, it is characterised in that the compressor of air conditioner control circuit also includes the filtration module being connected with control module,
The filtration module includes reactor and Access Control unit；
The reactor is the reactor with tap, and the tap is multiple, and the two ends of the reactor are series at the pressure
In contracting machine current supply circuit；
The Access Control unit includes multiple sub-control units corresponding with tap, and each described sub-control unit is defeated with one
Enter end and two output control terminals, wherein multiple output ports correspondence of the control module is connected with the input, it is described
One output control terminal is connected with a tap of the reactor, and another output control terminal is all connected to the one of the reactor
End, the control module controls the reactor section or whole by the multiple sub-control units in Access Control unit
The harmonic wave produced when in winding access compressor current supply circuit to compressor operating is filtered.
2. compressor of air conditioner as claimed in claim 1 controls circuit, it is characterised in that
The compressor of air conditioner control circuit also includes current acquisition module, an input port and the electricity of the control module
Stream acquisition module connection；The operating current of the current acquisition module collect and process machine, the control module is normal in compressor
After startup, the operating current size according to compressor produces corresponding control signal, to control the reactor section or complete
The harmonic wave produced when in portion's winding access compressor current supply circuit to compressor operating is filtered.
3. compressor of air conditioner as claimed in claim 1 or 2 controls circuit, it is characterised in that
The compressor of air conditioner control circuit also includes voltage detection module, an input port and the electricity of the control module
Pressure detection module connection；The voltage detection module detects the AC-input voltage value of compressor current supply circuit, the control mould
Root tuber produces control signal according to the size of the magnitude of voltage, in compressor start, to control the part winding of the reactor
Or the harmonic wave produced when in whole windings access compressor current supply circuits to compressor operating is filtered.
4. compressor of air conditioner as claimed in claim 3 controls circuit, it is characterised in that
It is pre- in the control module control reactor when described ac voltage is less than preset value in compressor start
If winding access compressor current supply circuit in；Wherein described default winding be in the reactor inductance value it is minimum around
Group.
5. compressor of air conditioner as claimed in claim 2 controls circuit, it is characterised in that
The compressor of air conditioner control circuit also includes temperature detecting module, an input port and the temperature of the control module
Degree detection module connection；The temperature detecting module detects the evaporator tube temperature of air-conditioner, and the control module is according to
The size of the absolute value of the difference of the evaporator tube temperature value in temperature detecting module collect and process machine start-up course and before startup
During more than preset value, control module produces control signal according to the size of the current value, after compressor normally starts, to control
The harmonic wave made the reactor section or produce when whole winding is accessed in compressor current supply circuit to compressor operating is carried out
Filtering.
6. compressor of air conditioner as claimed in claim 1 controls circuit, it is characterised in that
The sub-control unit includes switch element and the driver element that is connected with the switch element, the driver element it is defeated
Enter end to be connected with the control module, described switch element one end is connected with the tap terminals of the reactor, other end connection institute
State one end of reactor, the switching of the on off state that the control module passes through driver element controlling switch unit, to control
State reactor some or all of winding access compressor current supply circuit in.
7. compressor of air conditioner as claimed in claim 6 controls circuit, it is characterised in that
The driver element includes the first triode and first resistor, and the switch element includes the first relay, described first
The contact two ends of relay are connected in parallel on the tap of reactor and one end of reactor winding, driving coil one end of the relay
Connection DC power anode, other end connects the colelctor electrode of the first triode, the grounded emitter of first triode, institute
Base stage connection first resistor one end of the first triode is stated, the other end of the first resistor is connected with control module.
8. a kind of air-conditioner, it is characterised in that the air-conditioner includes any described compressor of air conditioner control of claim 1 to 7
Circuit processed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621219319.4U CN206246328U (en) | 2016-11-10 | 2016-11-10 | A kind of compressor of air conditioner controls circuit and air-conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621219319.4U CN206246328U (en) | 2016-11-10 | 2016-11-10 | A kind of compressor of air conditioner controls circuit and air-conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438317A (en) * | 2016-11-10 | 2017-02-22 | 广东美的制冷设备有限公司 | Air conditioner compressor control circuit, air conditioner compressor control method and air conditioner |
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2016
- 2016-11-10 CN CN201621219319.4U patent/CN206246328U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438317A (en) * | 2016-11-10 | 2017-02-22 | 广东美的制冷设备有限公司 | Air conditioner compressor control circuit, air conditioner compressor control method and air conditioner |
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