CN107763814A - A kind of convertible frequency air-conditioner electric discharge device, method and system - Google Patents
A kind of convertible frequency air-conditioner electric discharge device, method and system Download PDFInfo
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- CN107763814A CN107763814A CN201711089193.2A CN201711089193A CN107763814A CN 107763814 A CN107763814 A CN 107763814A CN 201711089193 A CN201711089193 A CN 201711089193A CN 107763814 A CN107763814 A CN 107763814A
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Abstract
The invention provides a kind of convertible frequency air-conditioner electric discharge device, method and system, the convertible frequency air-conditioner electric discharge device includes：Voltage detection module, processing module and discharge module；The voltage detection module is connected with the AC power of the external convertible frequency air conditioner, and the discharge module is connected with least one filtering storage capacitor that the external convertible frequency air conditioner includes；The voltage detection module, the voltage inputted for detecting the AC power to the external convertible frequency air conditioner, and power supply state signal is sent to the processing module according to the voltage；The processing module, for after judging that the AC power stops powering to the external convertible frequency air conditioner according to the power supply state signal, electric discharge instruction to be sent to the discharge module according to the discharge mode signal got；The discharge module, for being instructed according to the electric discharge, consume the electric energy stored at least one filtering storage capacitor.This programme can improve the efficiency repaired to convertible frequency air-conditioner.
Description
Technical field
The present invention relates to electrical engineering technical field, more particularly to a kind of convertible frequency air-conditioner electric discharge device, method and system.
Background technology
The relatively conventional air-conditioning of convertible frequency air-conditioner includes frequency converter, and frequency converter makes pressure by controlling and adjusting the rotating speed of compressor
Contracting machine is in optimal rotary regimes all the time, so as to improve the Energy Efficiency Ratio of air-conditioning.The electric-controlled plate of frequency-variable air conditioner outdoor machine needs to drive
The high power devices such as dynamic compressor, blower fan, in order to these high power device stable power-supplyings, it is necessary to multiple Large Copacities in parallel
Filtering storage capacitor.Because the capacity for filtering storage capacitor is larger, after external ac power source disconnects, each filtering energy storage electricity
Appearance is still stored with more electric energy, and now touching electric-controlled plate has electric shock risk.
At present, when convertible frequency air-conditioner, which breaks down, needs to check the electric-controlled plate of outdoor unit, after external ac power source is disconnected
Need to wait each filtering storage capacitor to discharge naturally, the electric energy for treating to store in each filtering storage capacitor is discharged to level of security
Electric-controlled plate is checked again afterwards, to prevent electric shock accidents.
Due to being stored with more electric energy in each filtering storage capacitor, and after external ac power source disconnects, compressor, wind
The devices such as machine are stopped, and the load of electric-controlled plate is smaller, and the electric energy stored in each filtering storage capacitor needs longer time
It could discharge to level of security, therefore wait longer time is needed when being repaired to convertible frequency air-conditioner, cause the effect of maintenance
Rate is relatively low.
The content of the invention
The embodiments of the invention provide a kind of convertible frequency air-conditioner electric discharge device, method and system, it is possible to increase to convertible frequency air-conditioner
The efficiency repaired.
In a first aspect, the embodiments of the invention provide a kind of convertible frequency air-conditioner electric discharge device, applied to external convertible frequency air conditioner, bag
Include：Voltage detection module, processing module and discharge module；
The voltage detection module is connected with the AC power of the external convertible frequency air conditioner, the discharge module and the change
At least one filtering storage capacitor that frequency outdoor machine of air-conditioner includes is connected；
The voltage detection module, the voltage inputted for detecting the AC power to the external convertible frequency air conditioner, and
Power supply state signal is sent to the processing module according to the voltage；
The processing module, for judging that the AC power stops to the frequency conversion according to the power supply state signal
After outdoor machine of air-conditioner power supply, electric discharge instruction is sent to the discharge module according to the discharge mode signal got；
The discharge module, for being instructed according to the electric discharge, stored in consumption at least one filtering storage capacitor
Electric energy.
Alternatively,
The convertible frequency air-conditioner electric discharge device further comprises：Discharge mode control module；
The discharge mode control module, for the triggering according to outside, automatic discharging mould is sent to the processing module
Formula signal or manual discharge mode signal；
The processing module, for judge the AC power stop to the external convertible frequency air conditioner power after, if
The discharge mode signal received is the automatic discharging mode signal, and sending the electric discharge to the discharge module refers to
Order, if the discharge mode signal received is the manual discharge mode signal, is receiving putting for outside input
The electric discharge is sent after electric execute instruction to the discharge module to instruct.
Alternatively,
The discharge mode control module includes：Automatic circuit resistance, manual line resistance and controlling switch；
One end of the automatic circuit resistance is connected with the dc source of outside, the other end and the first of the processing module
Terminals are connected；
One end of the manual line resistance is connected with one end of the controlling switch, the manual line resistance it is another
One end is connected with the second terminals of the processing module, and the other end of the controlling switch is connected with the dc source
Connect；
The processing module, for judge the AC power stop to the external convertible frequency air conditioner power after, if
First terminals are high level and second terminals are low level, and sending the electric discharge to the discharge module refers to
Order, if first terminals and second terminals are high level, performed in the electric discharge for receiving outside input
The electric discharge is sent after instruction to the discharge module to instruct.
Alternatively,
The convertible frequency air-conditioner electric discharge device further comprises：Indicating module；
The processing module, it is further used for according to the power supply state signal, the discharge mode signal and described puts
The transmission state of electricity instruction, indication signal is sent to the indicating module；
The indicating module, for according to the indication signal, power supply state, electric discharge mould to the external convertible frequency air conditioner
Being partly or entirely shown in formula and at least one filtering storage capacitor institute storing electricity state.
Alternatively,
The voltage detection module includes：Operational amplifier, first resistor, second resistance, 3rd resistor, the 4th resistance,
5th resistance and the 6th resistance；
The power pin of the operational amplifier is connected with the dc source of outside, and the power pin is by mutually going here and there
The first resistor of connection and second resistance ground connection；
The ground pin ground connection of the operational amplifier；
The positive pole input pin of the operational amplifier is connected by the 3rd resistor with the live wire of the AC power
Connect, and the positive pole input pin is connected between the first resistor and the second resistance；
The negative pole input pin of the operational amplifier is connected by the 4th resistance with the zero line of the AC power
Connect；
The output pin of the operational amplifier is connected by the 5th resistance with the processing module, and the output
Pin is connected by the 6th resistance with the negative pole input pin；
The operational amplifier, for being exchanged according to from the positive pole input pin with what the negative pole input pin inputted
Voltage signal, from level signal corresponding to output pin output, make to make by the level signal of the 5th resistance
Transmitted for the power supply state signal to the processing module.
Alternatively,
The discharge module includes：Relay driver, power relay and at least one load resistance；
The input of the relay driver is connected with processing module, the output end of the relay driver with it is described
Power relay is connected；
One end that adhesive switchs on the power relay is connected with the positive pole of at least one filtering storage capacitor, institute
State adhesive switch the other end be connected with one end of at least one load resistance, at least one load resistance it is another
The negative pole with least one filtering storage capacitor is held to be connected, and the other end ground connection of at least one load resistance；
The relay driver, for after the electric discharge instruction is received, driving the power relay to act, making
Adhesive switch closure in the power relay.
Second aspect, the embodiment of the present invention are additionally provided a kind of any one convertible frequency air-conditioner provided based on first aspect and put
The convertible frequency air-conditioner charging method of electric installation, applied to external convertible frequency air conditioner, including：
The AC power of the external convertible frequency air conditioner is detected to the external convertible frequency air conditioner using the voltage detection module
The voltage of input, and power supply state signal is sent to the processing module according to the voltage；
Using the processing module, judging that the AC power stops to the frequency conversion according to the power supply state signal
After outdoor machine of air-conditioner power supply, electric discharge instruction is sent to the discharge module according to the discharge mode signal got；
It is at least one according to included by the electric discharge instruction consumes the external convertible frequency air conditioner using the discharge module
The electric energy stored in filtering storage capacitor.
Alternatively,
When the convertible frequency air-conditioner electric discharge device includes discharge mode control module,
Before the discharge mode signal that the basis is got sends electric discharge instruction to the discharge module, further wrap
Include：
Receive automatic discharging mode signal or the manual discharge mode signal that the discharge mode control module is sent；
The discharge mode signal that the basis is got sends electric discharge instruction to the discharge module, including：
If the discharge mode signal received is the automatic discharging mode signal, sent to the discharge module
The electric discharge instruction, it is outer receiving if the discharge mode signal received is the manual discharge mode signal
The electric discharge is sent after the electric discharge execute instruction of portion's input to the discharge module to instruct.
Alternatively,
When the convertible frequency air-conditioner electric discharge device includes indicating module, further comprise：
Using the processing module, instructed according to the power supply state signal, the discharge mode signal and the electric discharge
Transmission state, to the indicating module send indication signal；
Utilize the indicating module, according to the indication signal, power supply state, electric discharge mould to the external convertible frequency air conditioner
Being partly or entirely shown in formula and at least one filtering storage capacitor institute storing electricity state.
The third aspect, the embodiment of the present invention additionally provide a kind of convertible frequency air-conditioner discharge system, including：AC power, frequency conversion
Any one convertible frequency air-conditioner electric discharge device that outdoor machine of air-conditioner and first aspect provide；
The AC power is connected with the external convertible frequency air conditioner and the convertible frequency air-conditioner electric discharge device respectively；
The external convertible frequency air conditioner includes at least one filtering storage capacitor, at least one filtering storage capacitor and institute
Convertible frequency air-conditioner electric discharge device is stated to be connected；
The AC power, for the external convertible frequency air conditioner input voltage.
Convertible frequency air-conditioner electric discharge device provided in an embodiment of the present invention, method and system, voltage detection module detection alternating current
The voltage that source inputs to external convertible frequency air conditioner, and power supply state signal, processing are sent to processing module according to the voltage detected
Module can determine whether AC power has stopped powering to external convertible frequency air conditioner according to power supply state signal, it is determined that exchange
Power supply has stopped after being powered to external convertible frequency air conditioner, and electric discharge instruction is sent to discharge module according to the discharge mode got,
The electric energy that discharge module stores in after receiving electric discharge instruction to each filtering storage capacitor consumes.So, in frequency conversion
After the AC power of outdoor machine of air-conditioner disconnects, discharge module each can will filter the electric energy that stored in storage capacitor according to electric discharge instruction
Consuming, electric discharge can be shortened and store electric energy in filtering storage capacitor and drop to time needed for level of security naturally relatively,
So as to shorten the stand-by period when being repaired to convertible frequency air-conditioner, the efficiency repaired to convertible frequency air-conditioner is improved.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of schematic diagram for convertible frequency air-conditioner electric discharge device that one embodiment of the invention provides；
Fig. 2 is a kind of convertible frequency air-conditioner electric discharge device including discharge mode control module that one embodiment of the invention provides
Schematic diagram；
Fig. 3 is the convertible frequency air-conditioner electric discharge dress that the another kind that one embodiment of the invention provides includes discharge mode control module
The schematic diagram put；
Fig. 4 is a kind of signal for convertible frequency air-conditioner electric discharge device including indicating module that one embodiment of the invention provides
Figure；
Fig. 5 is the schematic diagram for another convertible frequency air-conditioner electric discharge device that one embodiment of the invention provides；
Fig. 6 is the schematic diagram for another convertible frequency air-conditioner electric discharge device that one embodiment of the invention provides；
Fig. 7 is a kind of flow chart for convertible frequency air-conditioner charging method that one embodiment of the invention provides；
Fig. 8 is a kind of schematic diagram for convertible frequency air-conditioner discharge system that one embodiment of the invention provides；
Fig. 9 is the flow chart for another convertible frequency air-conditioner charging method that one embodiment of the invention provides.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments, based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in figure 1, the embodiments of the invention provide a kind of convertible frequency air-conditioner electric discharge device, applied to external convertible frequency air conditioner,
The device can include：Voltage detection module 10, processing module 20 and discharge module 30；
Voltage detection module 10 is connected with the AC power of external convertible frequency air conditioner, discharge module 30 and external convertible frequency air conditioner bag
At least one filtering storage capacitor included is connected；
Voltage detection module 10 is used to detect the voltage that AC power inputs to external convertible frequency air conditioner, and according to voltage to place
Manage module 20 and send power supply state signal；
Processing module 20 is used for after judging that AC power stops powering to external convertible frequency air conditioner according to power supply state signal,
Electric discharge instruction is sent to discharge module 30 according to the discharge mode signal got；
Discharge module 30 is used to be instructed according to electric discharge, consumes the electric energy stored in each filtering storage capacitor.
The embodiments of the invention provide a kind of convertible frequency air-conditioner electric discharge device, voltage detection module detects AC power to frequency conversion
Outdoor machine of air-conditioner input voltage, and according to the voltage detected to processing module send power supply state signal, processing module according to
Power supply state signal can determine AC power whether stopped to external convertible frequency air conditioner power, it is determined that AC power
Stop after being powered to external convertible frequency air conditioner, electric discharge instruction, discharge module are sent to discharge module according to the discharge mode got
The electric energy stored in after receiving electric discharge instruction to each filtering storage capacitor consumes.So, in external convertible frequency air conditioner
AC power disconnect after, discharge module can fall the power consumption that stores in each filtering storage capacitor according to electric discharge instruction,
Electric discharge can be shortened and store electric energy in filtering storage capacitor and drop to time needed for level of security naturally relatively, so as to
Shorten the stand-by period when being repaired to convertible frequency air-conditioner, improve the efficiency repaired to convertible frequency air-conditioner.
Alternatively, on the basis of convertible frequency air-conditioner electric discharge device shown in Fig. 1, as shown in Fig. 2 the convertible frequency air-conditioner electric discharge device
It can also include：Discharge mode control module 40；
Discharge mode control module 40 is used for the triggering according to outside, and automatic discharging mode signal is sent to processing module 20
Or manual discharge mode signal；
Processing module 20 is after judging that AC power stops powering to external convertible frequency air conditioner, if the discharge mode received
Signal is the automatic discharging mode signal that discharge mode control module 40 is sent, then directly sending electric discharge to discharge module 30 refers to
Order, if the discharge mode signal received is the manual discharge mode signal that discharge mode control module 40 is sent, need
Further determine whether to receive the electric discharge execute instruction of outside input, only just to electric discharge after electric discharge execute instruction is received
Module 30 sends electric discharge instruction.
Convertible frequency air-conditioner is during normal use, and external convertible frequency air conditioner is frequently necessary to repeatedly upper electricity, if powered off each time
All the storage electric energy filtered in storage capacitor is quickly bled off, the components such as filtering storage capacitor can also be shortened by not only wasting electric energy
Life-span.Therefore, setting discharge mode control module in convertible frequency air-conditioner electric discharge device, user to discharge mode by controlling mould
Block is triggered, and discharge mode control module can be made to send automatic discharging mode signal or the mould that discharges manually to processing module
Formula signal.
In product development and scheduling and planning stage, it is necessary to be powered off repeatedly to external convertible frequency air conditioner, needed every time after power-off
Electric-controlled plate is detected or debugged, need in time to discharge storage electric energy in filtering storage capacitor to avoid getting an electric shock, this
When user discharge mode control module can be adjusted to processing module send automatic discharging mode signal state, handle mould
As long as block judges that AC power stops just sending electric discharge instruction to discharge module to external convertible frequency air conditioner power supply, make discharge module
The electric energy stored in each filtering storage capacitor is quickly consumed.
When product volume production enters market, in order to avoid some, in particular cases upper conductance causes filter to external convertible frequency air conditioner repeatedly
The regular repid discharge of ripple storage capacitor, while can be when needing to repair external convertible frequency air conditioner in time by each filtering
The power consumption stored in storage capacitor falls, and user can adjust discharge mode control module manual to being sent to processing module
The state of discharge mode signal, processing module is after judging that AC power stops powering to external convertible frequency air conditioner, it is necessary to enter one
Step judges whether to receive the electric discharge execute instruction of user's input, only just to discharge module after electric discharge execute instruction is received
Electric discharge instruction is sent, discharge module is fallen the power consumption stored in each filtering storage capacitor.
By setting discharge mode control module in convertible frequency air-conditioner electric discharge device so that user can pass through discharge mode
The discharge mode of convertible frequency air-conditioner electric discharge device is adjusted control module.Product development and scheduling and planning rank in convertible frequency air-conditioner
Section, convertible frequency air-conditioner electric discharge device is adjusted to automatic discharging pattern, automatically by each filtering after each external convertible frequency air conditioner power-off
The power consumption stored in storage capacitor falls, and prevents the generation of electric shock accidents.After product volume production enters market, by convertible frequency air-conditioner
Electric discharge device is adjusted to manual discharge mode, without discharge process after external convertible frequency air conditioner normal power down, is only being needed pair
The electric energy stored in each filtering storage capacitor is disappeared when the electric-controlled plate of external convertible frequency air conditioner is detected or repaired and quickly consumed.
So, quickly it can filter what is stored in storage capacitor by each when on the one hand can ensure to repair external convertible frequency air conditioner
Power consumption, the generation of electric shock accidents is prevented, lift the security of convertible frequency air-conditioner；On the other hand, it is normal in external convertible frequency air conditioner
During power-off, quick release is not carried out to the electric energy stored in each filtering storage capacitor, extended while electric energy is saved automatically controlled
The service life of the components such as storage capacitor is filtered on plate.
Alternatively, on the basis of convertible frequency air-conditioner electric discharge device as shown in Figure 2, as shown in figure 3, discharge mode control module
40 can include：Automatic circuit resistance RZ, manual line resistance RSWith controlling switch K1；
Automatic circuit resistance RZOne end be connected with dc source VCC1, the first terminals of the other end and processing module 20
I1It is connected；Manual line resistance RSOne end be connected with controlling switch K1 one end, manual line resistance RSThe other end with
Second terminals I of processing module 202It is connected, the controlling switch K1 other end is connected with dc source VCC1；
Processing module 20 is after judging that AC power stops powering to external convertible frequency air conditioner, if processing module 20 is read
Its first terminals I1For high level and the second terminals I2For low level, then electric discharge instruction directly is sent to discharge module 30, such as
Fruit processing module 20 reads its first terminals I1With the second terminals I2It is high level, then processing module 20 is further sentenced
The disconnected electric discharge execute instruction for whether receiving outside input, only sent out again to discharge module 30 after electric discharge execute instruction is received
Veer away electricity instruction.
When controlling switch K1 is off, the first terminals I in processing module 201Pass through automatic circuit resistance
RZIt is connected with dc source VCC1, the first terminals I in processing module 201For high level, the second terminals I2For low level,
Now if the power supply signal condition adjudgement AC power that processing module 20 is sent according to voltage detection module 10 stops to frequency conversion
Outdoor machine of air-conditioner is powered, then directly sends electric discharge instruction to discharge module 30.When controlling switch K1 is in closure state, mould is handled
The first terminals I on block 201Pass through automatic circuit resistance RZIt is connected with dc source VCC1, second in processing module 20 connects
Line end I2Pass through automatic circuit resistance RSIt is connected with dc source VCC1, the first terminals I in processing module 201Connect with second
Line end I2It is high level, now if the power supply state signal that processing module 20 is sent according to voltage detection module 10 judges to hand over
Stream power supply stops powering to external convertible frequency air conditioner, then needs to further determine whether that the electric discharge for receiving outside input execution refers to
Order, electric discharge instruction is sent to discharge module 30 after electric discharge execute instruction is received.
User can be adjusted the convertible frequency air-conditioner electric discharge device to automatic discharging pattern by controlling switch or electric discharge manually
Pattern, so that convertible frequency air-conditioner electric discharge device in time stores according to the demand of user to filtering storage capacitor in external convertible frequency air conditioner
Electric energy discharged.Due to user only need by controlling switch can to adjust the discharge mode of convertible frequency air-conditioner electric discharge device,
On the one hand make it that regulation process is more convenient, improve the usage experience of user, on the other hand cause discharge mode control module
Structure it is simpler, lift the reliability of the convertible frequency air-conditioner electric discharge device, and reduce the cost of the convertible frequency air-conditioner electric discharge device.
Alternatively, in Fig. 1 into Fig. 3 on the basis of any convertible frequency air-conditioner electric discharge device, as shown in figure 4, the frequency conversion
Air-conditioning electric discharge device can also include：Indicating module 50；
Processing module 20 is further used for the transmission shape according to power supply state signal, discharge mode signal and electric discharge instruction
State, indication signal is sent to indicating module 50；
Indicating module 50 is after the indication signal of the transmission of processing module 20 is received, the power supply shape to external convertible frequency air conditioner
Being partly or entirely shown in state, discharge mode and each filtering storage capacitor institute storing electricity state.
Processing module can determine the power supply that AC power is powered to external convertible frequency air conditioner according to power supply state signal
State, it can determine to put filtering storage capacitor with automatic discharging pattern/manual discharge mode according to discharge mode signal
Electricity, remaining electric energy in each filtering storage capacitor can be determined according to the time for sending instruction of discharging.Processing module is according to this
Indicating module is sent to after a little information generation indication signals, indicating module indicates the power supply of external convertible frequency air conditioner according to indication signal
For state to power/stopping power supply, the discharge mode of instruction convertible frequency air-conditioner electric discharge device is automatic discharging pattern/electric discharge manually
Pattern, indicate that each filtering storage capacitor institute storing electricity is danger level/level of security.So, user is according to indicating module
The information shown, it may be determined that the power supply state of external convertible frequency air conditioner, the discharge mode of convertible frequency air-conditioner electric discharge device and filtering
The level of storage capacitor institute storing electricity, so external convertible frequency air conditioner and convertible frequency air-conditioner electric discharge device are adjusted correspondingly or
Processing, on the one hand facilitates the operation of user, on the other hand can ensure the safety of user.
Specifically, indicating module can indicate that the power supply state of external convertible frequency air conditioner, convertible frequency air-conditioner electric discharge device are put with LED
The level of power mode and filtering storage capacitor institute storing electricity.Such as can be specific to indicate by LED etc. number, color
Information.
Alternatively, in Fig. 1 into Fig. 3 on the basis of any convertible frequency air-conditioner electric discharge device, as shown in figure 5, voltage is examined
Surveying module 10 can include：Operational amplifier D1, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4,
Five resistance R5 and the 6th resistance R6；
Operational amplifier D1 power pin VCC is connected with the dc source VCC2 of outside, and power pin VCC passes through phase
First resistor R1 and second resistance the R2 ground connection mutually connected；
Operational amplifier D1 ground pin GND ground connection；
Operational amplifier D1 positive pole input pin+I is connected by 3rd resistor R3 with the live wire ACL of AC power,
And positive pole input pin+I is connected between first resistor R1 and second resistance R2；
Operational amplifier D1 negative pole input pin-I is connected by the 4th resistance R4 with the zero line ACN of AC power；
Operational amplifier D1 output pin O is connected by the 5th resistance R5 with processing module 20, and output pin O passes through
6th resistance R6 is connected with negative pole input pin-I；
Operational amplifier D1 is used for according to the alternating voltage letter inputted from positive pole input pin+I and negative pole input pin-I
Number, from level signal corresponding to output pin O outputs, make to be used as power supply state signal biography by the 5th resistance R5 level signal
Transport to processing module 20.
Because 3rd resistor R3 and the 4th resistance R4 are connected with the live wire ACL and zero line ACN of AC power respectively, work as friendship
Power supply is flowed when being powered to external convertible frequency air conditioner, and positive pole input pin+I and negative pole input pin-I on operational amplifier D1 are
High level, operational amplifier D1 is according to positive pole input pin+I and negative pole input pin-I level, from output pin O outputs pair
The first level signal answered, after first level signal reaches processing module 20 by the 5th resistance R5, processing module 20 can root
Determine that AC power does not stop powering to external convertible frequency air conditioner according to first level signal；When AC power stops to frequency conversion sky
When adjusting the outer machine to power, positive pole input pin+I and negative pole input pin-I on operational amplifier D1 are low level, operation amplifier
Device D1 is according to positive pole input pin+I and negative pole input pin-I level, from second electrical level letter corresponding to output pin O outputs
Number, after the second electrical level signal reaches processing module 20 by the 5th resistance R5, processing module 20 can be believed according to the second electrical level
Number determine AC power stopped to external convertible frequency air conditioner power.Such as first level signal be low level, second electrical level letter
Number it is high level.
In embodiments of the present invention, voltage detection module 10 can be the module or convertible frequency air-conditioner being separately provided
Existing voltage detecting circuit in PFC module, specifically can flexibly be selected according to the actual requirements on outer Electrical Control plate.
Alternatively, on the basis of convertible frequency air-conditioner electric discharge device shown in Fig. 5, as shown in fig. 6, discharge module can include：
Relay driver D2, power relay K2 and at least one load resistance R7；
Relay driver D2 input is connected with processing module 20, relay driver D2 output end and power after
Electrical equipment K2 is connected；
One end that adhesive switchs on power relay K2 is connected with least one filtering storage capacitor C positive pole, and adhesive is opened
The other end of pass is connected with least one load resistance R7 one end, at least one load resistance R7 other end with it is at least one
Filtering storage capacitor C negative pole is connected, and at least one load resistance R7 other end ground connection；
Relay driver D2 is used for after electric discharge instruction is received, and driving power relay K2 actions, makes power relay
Adhesive switch closure in device K2.
Wherein, each filtering storage capacitor C is parallel with one another in external convertible frequency air conditioner, and the one of each filtering storage capacitor C
End ground connection, the other end are connected with the power output end E on electric-controlled plate.Specifically, power output end E can be on electric-controlled plate
The voltage output end of PFC (Power Factor Correction, PFC) circuit.
In addition to being connected with power relay K2, dc source VCC3's relay driver D2 also with outside is connected, when
After relay driver D2 receives the electric discharge instruction of the transmission of processing module 20, relay driver D2 is dc source VCC3's
Electric energy is transmitted to power relay K2 under effect, power relay K2 is in external dc power VCC4 and relay driver D2 institutes
Transmit the adhesive switch closure for including it under the collective effect of electric energy.It is each after power relay K2 adhesive switch closure
Load resistance R7 is deposited with each filtering storage capacitor C-shaped into loop, each load resistance R7 using each filter in storage capacitor C
The electric energy of storage is generated heat, so as to quickly consume the electric energy stored in each filtering storage capacitor C.
As shown in fig. 7, one embodiment of the invention provides a kind of any one frequency conversion provided based on above-described embodiment
The convertible frequency air-conditioner charging method of air-conditioning electric discharge device, applied to external convertible frequency air conditioner, this method may comprise steps of：
Step 701：Inputted using the AC power of voltage detection module detection external convertible frequency air conditioner to external convertible frequency air conditioner
Voltage, and according to voltage to processing module send power supply state signal；
Step 702：Using processing module, judging that AC power stops to external convertible frequency air conditioner according to power supply state signal
After power supply, electric discharge instruction is sent to discharge module according to the discharge mode signal got；
Step 703：Using discharge module, at least one filtering according to included by electric discharge instructs consumption external convertible frequency air conditioner
The electric energy stored in storage capacitor.
The embodiments of the invention provide a kind of convertible frequency air-conditioner charging method, using voltage detection module detect AC power to
The voltage of external convertible frequency air conditioner input, and power supply state signal is sent to processing module according to the voltage detected, utilize processing
Module judges whether AC power has stopped powering to external convertible frequency air conditioner according to power supply state signal, when judged result is yes
Electric discharge instruction is sent to discharge module according to the discharge mode signal got afterwards, consumed according to electric discharge instruction using discharge module
The electric energy stored in external convertible frequency air conditioner in each filtering storage capacitor.As can be seen here, when AC power disconnects, according to power supply
Status signal can determine that AC power has stopped powering to external convertible frequency air conditioner, now discharge module consumption can be utilized to become
The electric energy stored in frequency outdoor machine of air-conditioner in each filtering storage capacitor, electric discharge can shorten institute in filtering storage capacitor naturally relatively
Storage electric energy drops to time needed for level of security, during so as to shorten the wait when being repaired to convertible frequency air-conditioner
Between, improve the efficiency repaired to convertible frequency air-conditioner.
Alternatively, as shown in Fig. 2 when convertible frequency air-conditioner electric discharge device includes discharge mode control module, step in the figure 7
Before sending electric discharge instruction to discharge module according to discharge mode signal in 702, the transmission of discharge mode control module can be received
Automatic discharging mode signal or manual discharge mode signal, correspondingly, in step 702 according to discharge mode signal to electric discharge mould
When block sends electric discharge instruction, if the discharge mode signal received is automatic discharging mode signal, directly utilizes and handle mould
Block sends electric discharge instruction to discharge module, if the discharge mode signal received is manual discharge mode signal, is receiving
Processing module is recycled to send electric discharge instruction to discharge module after to the electric discharge execute instruction of outside input.
Alternatively, as shown in figure 4, when convertible frequency air-conditioner electric discharge device includes indicating module, put in convertible frequency air-conditioner shown in Fig. 7
On the basis of method for electrically, the convertible frequency air-conditioner charging method can also include：
Using processing module, according to the transmission state of power supply state signal, discharge mode signal and electric discharge instruction, to instruction
Module sends indication signal；
Using indicating module, according to indication signal, to the power supply state of external convertible frequency air conditioner, discharge mode and at least one
Being partly or entirely shown in filtering storage capacitor institute storing electricity state.
Each step that the above method includes, due to being based on same design with apparatus of the present invention embodiment, particular content can
Referring to the narration in apparatus of the present invention embodiment, here is omitted.
As shown in figure 8, one embodiment of the invention additionally provides a kind of convertible frequency air-conditioner discharge system, the system can wrap
Include：Any one convertible frequency air-conditioner electric discharge device that AC power 801, external convertible frequency air conditioner 802 and above-mentioned each embodiment provide
803；
AC power 801 is connected with external convertible frequency air conditioner 802 and convertible frequency air-conditioner electric discharge device 803 respectively；
External convertible frequency air conditioner 802 includes at least one filtering storage capacitor, and each filtering storage capacitor is put with convertible frequency air-conditioner
Electric installation 803 is connected；
AC power 801, for the input voltage of external convertible frequency air conditioner 802.
The contents such as the information exchange between each unit, implementation procedure in said system, due to implementing with apparatus of the present invention
Example is based on same design, and particular content can be found in the narration in apparatus of the present invention embodiment, and here is omitted.
With reference to the convertible frequency air-conditioner electric discharge device shown in Fig. 3 and Fig. 6, convertible frequency air-conditioner provided in an embodiment of the present invention is put
Method for electrically is described in further detail, as shown in figure 9, this method may comprise steps of：
Step 901：The voltage inputted using voltage detection module detection AC power to external convertible frequency air conditioner.
In an embodiment of the invention, can be with after voltage detection module is connected with the zero line and live wire of AC power
Detect the voltage that AC power inputs to external convertible frequency air conditioner in real time using voltage detection module.
Step 902：The voltage detected according to voltage detection module, believe to power supply state corresponding to processing module transmission
Number.
In an embodiment of the invention, voltage detection module is detecting what AC power inputted to external convertible frequency air conditioner
After voltage, power supply state signal corresponding to the voltage to processing module transmission that further basis detects.
For example, as shown in fig. 6, when positive pole input pin+I and negative pole are defeated on operational amplifier D1 in voltage detection module 10
When to enter pin-I be high level, i.e., AC power do not stop to external convertible frequency air conditioner power when, operational amplifier D1 is from defeated
Go out pin O output low level signals, the low level signal is transferred to processing module 20 as power supply state signal；When computing is put
When positive pole input pin+I and negative pole input pin-I is low level on big device D1, operational amplifier D1 is defeated from output pin O
Go out high level signal, the high level signal is transferred to processing module 20 as power supply state signal.
Step 903：Judge whether AC power stops powering to external convertible frequency air conditioner according to power supply state signal, if
It is to perform step 904, otherwise terminate current process.
In an embodiment of the invention, processing module is receiving the power supply state signal of voltage detection module transmission
Afterwards, judge whether AC power has stopped powering to convertible frequency air-conditioner according to the power supply state signal received, if it is, explanation
Need to discharge the electric energy stored in each filtering storage capacitor in external convertible frequency air conditioner according to discharge mode signal, accordingly
Execution step 904, otherwise explanation correspondingly tie without discharging each filtering storage capacitor in external convertible frequency air conditioner
Beam current process.
Step 904：Judgement receives whether discharge mode signal is automatic discharging mode signal, if it is, performing step
906, otherwise perform step 905.
In an embodiment of the invention, processing module it is determined that AC power stopped to convertible frequency air-conditioner power after,
Determine whether the discharge mode signal that discharge mode control module is sent is automatic discharging mode signal, if it is, saying
As long as bright AC power stops just needing to discharge to each filtering storage capacitor to convertible frequency air-conditioner power supply, step is correspondingly performed
Rapid 906, each filtering storage capacitor could be discharged after the confirmation for otherwise illustrating to need to obtain user, correspondingly perform step
Rapid 905.
For example, as shown in figure 3, when if controlling switch K1 is off in discharge mode control module 40, handle
First terminals I in module 201For high level and the second terminals I2For low level, now discharge mode control module 40 passes through
First terminals I1With the second terminals I2Input to processing module 20 for automatic discharging mode signal, correspondingly perform step
906；If controlling switch K1 is in closure state in discharge mode control module 40, the first terminals in processing module 20
I1With the second terminals I2It is high level, now discharge mode control module 40 passes through the first terminals I1With the second terminals
I2Input to processing module 20 for manual discharge mode signal, correspondingly perform step 905.I.e. user adjusts controlling switch K1
When section is to off-state, processing module 20 will receive automatic discharging mode signal, and user adjusts controlling switch K1 to closure
During state, processing module 20 will receive manual discharge mode signal.
Step 905：Judge whether to receive electric discharge execute instruction, if it is, performing step 906, otherwise terminate currently to flow
Journey.
In an embodiment of the invention, if what processing module received is manual discharge mode signal, it is determined that
AC power stops after powering to external convertible frequency air conditioner referring to, it is necessary to further determine whether that the electric discharge for receiving user's input performs
Order, just need to discharge to each filtering storage capacitor after electric discharge execute instruction is received, correspondingly perform step 906,
If being not received by electric discharge execute instruction, illustrate the demand that user is not discharged each filtering storage capacitor, accordingly
Terminate current process in ground.
Step 906：Using processing module electric discharge instruction is sent to discharge module.
In an embodiment of the invention, processing module it is determined that need to it is each filtering storage capacitor discharge after,
Electric discharge instruction is sent to discharge module.
For example, as shown in fig. 6, when relay driver D2 of the processing module 20 into discharge module 30 sends high level
Electric discharge instruction.
Step 907：Each filtering storage capacitor in external convertible frequency air conditioner is discharged using discharge module.
In an embodiment of the invention, discharge module is quick right after the electric discharge instruction of processing module transmission is received
The electric energy stored in external convertible frequency air conditioner in each filtering storage capacitor is consumed, with the short period of time by each filtering
The electric energy stored in storage capacitor drops to level of security.
For example, as shown in fig. 6, relay driver D2 after high level signal is received, driving power relay K2, makes
Adhesive switch closure in power relay K2, each load resistance R7 is connected with each filtering storage capacitor C, utilization is each
The electric energy stored in each filtering storage capacitor C of load resistance R7 consumption, quickly to make what is stored in each filtering storage capacitor C
Electric energy drops to level of security.
In summary, the convertible frequency air-conditioner electric discharge device of each embodiment offer of the present invention, method and system, at least have such as
Lower beneficial effect：
1st, in embodiments of the present invention, the voltage that voltage detection module detection AC power inputs to external convertible frequency air conditioner,
And power supply state signal is sent to processing module according to the voltage detected, processing module can determine according to power supply state signal
Whether AC power has stopped powering to external convertible frequency air conditioner, it is determined that AC power has stopped supplying to external convertible frequency air conditioner
After electricity, electric discharge instruction is sent to discharge module according to the discharge mode got, discharge module is right after electric discharge instruction is received
The electric energy stored in each filtering storage capacitor is consumed.So, after the AC power of external convertible frequency air conditioner disconnects, electric discharge
Module can be fallen the power consumption stored in each filtering storage capacitor according to electric discharge instruction, and electric discharge can shorten filter naturally relatively
Electric energy is stored in ripple storage capacitor and drops to time needed for level of security, is tieed up so as to shorten to convertible frequency air-conditioner
Stand-by period when repairing, improve the efficiency repaired to convertible frequency air-conditioner.
2nd, in embodiments of the present invention, by setting discharge mode control module, user in convertible frequency air-conditioner electric discharge device
The discharge mode of convertible frequency air-conditioner electric discharge device can be adjusted by discharge mode control module so that convertible frequency air-conditioner discharges
Device is discharged filtering storage capacitor with automatic discharging pattern or manual discharge mode.On the one hand can ensure empty to frequency conversion
The power consumption for adjusting outer machine quickly can be stored when being repaired in each filtering storage capacitor, prevent the hair of electric shock accidents
It is raw, lift the security of convertible frequency air-conditioner；On the other hand, in external convertible frequency air conditioner normal power down, not to each filtering energy storage electricity
The electric energy stored in appearance carries out quick release, extends while electric energy is saved and the components such as storage capacitor are filtered on electric-controlled plate
Service life.
3rd, in embodiments of the present invention, discharge mode control module includes two resistance and a controlling switch, Yong Hutong
The convertible frequency air-conditioner electric discharge device can be adjusted to automatic discharging pattern or manual discharge mode by crossing controlling switch, so that frequency conversion is empty
The electric energy for adjusting electric discharge device in time to be stored according to the demand of user to filtering storage capacitor in external convertible frequency air conditioner discharges.
Because user only needs on the one hand to adjust to adjust the discharge mode of convertible frequency air-conditioner electric discharge device by controlling switch
Cheng Gengjia is convenient, improves the usage experience of user, on the other hand make it that the structure of discharge mode control module is simpler, carries
The reliability of the convertible frequency air-conditioner electric discharge device is risen, and reduces the cost of the convertible frequency air-conditioner electric discharge device.
4th, in embodiments of the present invention, indicating module is set in convertible frequency air-conditioner electric discharge device, and indicating module can indicate to become
The water of the power supply state of frequency outdoor machine of air-conditioner, the discharge mode of convertible frequency air-conditioner electric discharge device and filtering storage capacitor institute storing electricity
Flat, the information that user is shown according to indicating module can carry out corresponding to external convertible frequency air conditioner and convertible frequency air-conditioner electric discharge device
Adjustment or processing, on the one hand facilitate the operation of user, on the other hand can ensure the safety of user.
It should be noted that herein, such as first and second etc relational terms are used merely to an entity
Or operation makes a distinction with another entity or operation, and not necessarily require or imply and exist between these entities or operation
Any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant be intended to it is non-
It is exclusive to include, so that process, method, article or equipment including a series of elements not only include those key elements,
But also the other element including being not expressly set out, or also include solid by this process, method, article or equipment
Some key elements.In the absence of more restrictions, the key element limited by sentence " including one ", is not arranged
Except other identical factor in the process including the key element, method, article or equipment being also present.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
Programmed instruction related hardware is completed, and foregoing program can be stored in computer-readable storage medium, the program
Upon execution, the step of execution includes above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
It is last it should be noted that：Presently preferred embodiments of the present invention is the foregoing is only, is merely to illustrate the skill of the present invention
Art scheme, is not intended to limit the scope of the present invention.Any modification for being made within the spirit and principles of the invention,
Equivalent substitution, improvement etc., are all contained in protection scope of the present invention.
Claims (10)
- A kind of 1. convertible frequency air-conditioner electric discharge device, applied to external convertible frequency air conditioner, it is characterised in that including：Voltage detection module, place Manage module and discharge module；The voltage detection module is connected with the AC power of the external convertible frequency air conditioner, and the discharge module is empty with the frequency conversion At least one filtering storage capacitor that adjusting outer machine includes is connected；The voltage detection module, the voltage inputted for detecting the AC power to the external convertible frequency air conditioner, and according to The voltage sends power supply state signal to the processing module；The processing module, for judging that the AC power stops to the convertible frequency air-conditioner according to the power supply state signal After outer machine power supply, electric discharge instruction is sent to the discharge module according to the discharge mode signal got；The discharge module, for being instructed according to the electric discharge, consume the electricity stored at least one filtering storage capacitor Energy.
- 2. convertible frequency air-conditioner electric discharge device according to claim 1, it is characterised in that further comprise：Discharge mode controls Module；The discharge mode control module, for the triggering according to outside, automatic discharging pattern letter is sent to the processing module Number or manual discharge mode signal；The processing module, for judge the AC power stop to the external convertible frequency air conditioner power after, if receive The discharge mode signal arrived is the automatic discharging mode signal, and sending the electric discharge to the discharge module instructs, such as The discharge mode signal that fruit receives is the manual discharge mode signal, then is performed in the electric discharge for receiving outside input The electric discharge is sent after instruction to the discharge module to instruct.
- 3. convertible frequency air-conditioner electric discharge device according to claim 2, it is characterised in thatThe discharge mode control module includes：Automatic circuit resistance, manual line resistance and controlling switch；One end of the automatic circuit resistance is connected with the dc source of outside, the other end and the first wiring of the processing module End is connected；One end of the manual line resistance is connected with one end of the controlling switch, the other end of the manual line resistance It is connected with the second terminals of the processing module, the other end of the controlling switch is connected with the dc source；The processing module, for judge the AC power stop to the external convertible frequency air conditioner power after, if described First terminals are high level and second terminals are low level, and sending the electric discharge to the discharge module instructs, such as First terminals described in fruit and second terminals are high level, then after the electric discharge execute instruction of outside input is received The electric discharge instruction is sent to the discharge module.
- 4. according to any described convertible frequency air-conditioner electric discharge device in claims 1 to 3, it is characterised in that further comprise：Instruction Module；The processing module, it is further used for being referred to according to the power supply state signal, the discharge mode signal and the electric discharge The transmission state of order, indication signal is sent to the indicating module；The indicating module, for according to the indication signal, to the power supply state of the external convertible frequency air conditioner, discharge mode and Being partly or entirely shown at least one filtering storage capacitor institute storing electricity state.
- 5. according to any described convertible frequency air-conditioner electric discharge device in claims 1 to 3, it is characterised in that the voltage detecting mould Block includes：Operational amplifier, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance and the 6th resistance；The power pin of the operational amplifier is connected with the dc source of outside, and the power pin is by being serially connected The first resistor and second resistance ground connection；The ground pin ground connection of the operational amplifier；The positive pole input pin of the operational amplifier is connected by the 3rd resistor with the live wire of the AC power, and The positive pole input pin is connected between the first resistor and the second resistance；The negative pole input pin of the operational amplifier is connected by the 4th resistance with the zero line of the AC power；The output pin of the operational amplifier is connected by the 5th resistance with the processing module, and the output pin It is connected by the 6th resistance with the negative pole input pin；The operational amplifier, for according to the alternating voltage inputted from the positive pole input pin and the negative pole input pin Signal, from level signal corresponding to output pin output, the level signal by the 5th resistance is set to be used as institute Power supply state signal is stated to transmit to the processing module.
- 6. convertible frequency air-conditioner electric discharge device according to claim 5, it is characterised in that the discharge module includes：Relay Driver, power relay and at least one load resistance；The input of the relay driver is connected with processing module, the output end of the relay driver and the power Relay is connected；One end that adhesive switchs on the power relay is connected with the positive pole of at least one filtering storage capacitor, the suction The other end of combination switch is connected with one end of at least one load resistance, the other end of at least one load resistance with The negative pole of at least one filtering storage capacitor is connected, and the other end ground connection of at least one load resistance；The relay driver, for after the electric discharge instruction is received, driving the power relay to act, make described Adhesive switch closure in power relay.
- 7. a kind of convertible frequency air-conditioner charging method based on any convertible frequency air-conditioner electric discharge device in claim 1 to 6, is applied to External convertible frequency air conditioner, it is characterised in that including：The AC power that the external convertible frequency air conditioner is detected using the voltage detection module is inputted to the external convertible frequency air conditioner Voltage, and according to the voltage to the processing module send power supply state signal；Using the processing module, judging that the AC power stops to the convertible frequency air-conditioner according to the power supply state signal After outer machine power supply, electric discharge instruction is sent to the discharge module according to the discharge mode signal got；Using the discharge module, at least one filtering according to included by the electric discharge instruction consumes the external convertible frequency air conditioner The electric energy stored in storage capacitor.
- 8. according to the method for claim 7, it is characterised in that when the convertible frequency air-conditioner electric discharge device includes discharge mode control During molding block,Before the discharge mode signal that the basis is got sends electric discharge instruction to the discharge module, further comprise：Receive automatic discharging mode signal or the manual discharge mode signal that the discharge mode control module is sent；The discharge mode signal that the basis is got sends electric discharge instruction to the discharge module, including：If the discharge mode signal received is the automatic discharging mode signal, to described in discharge module transmission Electric discharge instruction, it is outside defeated receiving if the discharge mode signal received is the manual discharge mode signal The electric discharge is sent after the electric discharge execute instruction entered to the discharge module to instruct.
- 9. the method according to claim 7 or 8, it is characterised in that when the convertible frequency air-conditioner electric discharge device includes instruction mould During block, further comprise：Using the processing module, according to the hair of the power supply state signal, the discharge mode signal and the electric discharge instruction State is sent, indication signal is sent to the indicating module；Using the indicating module, according to the indication signal, to the power supply state of the external convertible frequency air conditioner, discharge mode and Being partly or entirely shown at least one filtering storage capacitor institute storing electricity state.
- A kind of 10. convertible frequency air-conditioner discharge system, it is characterised in that including：AC power, external convertible frequency air conditioner and claim 1 Any described convertible frequency air-conditioner electric discharge device into 6；The AC power is connected with the external convertible frequency air conditioner and the convertible frequency air-conditioner electric discharge device respectively；The external convertible frequency air conditioner includes at least one filtering storage capacitor, at least one filtering storage capacitor and the change Frequency air-conditioning electric discharge device is connected；The AC power, for the external convertible frequency air conditioner input voltage.
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| CN201711089193.2A CN107763814B (en) | 2017-11-08 | 2017-11-08 | Variable frequency air conditioner discharging device, method and system |
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| CN107763814B (en) | 2020-01-07 |
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