CN110410990A - Four-way valve electric-controlled plate and air conditioner - Google Patents
Four-way valve electric-controlled plate and air conditioner Download PDFInfo
- Publication number
- CN110410990A CN110410990A CN201910622850.8A CN201910622850A CN110410990A CN 110410990 A CN110410990 A CN 110410990A CN 201910622850 A CN201910622850 A CN 201910622850A CN 110410990 A CN110410990 A CN 110410990A
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- Prior art keywords
- way valve
- bridge arm
- circuit
- switch
- resistance
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
- Inverter Devices (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention discloses a kind of four-way valve electric-controlled plate and air conditioner, including electric-controlled plate, and it is set to the four-way valve-driving circuit on electric-controlled plate, the circuit includes: H bridge switch circuit, including the first bridge arm switching circuit and the second bridge arm switching circuit, the upper bridge arm of first bridge arm circuit switchs the work when receiving first switch driving signal, with driving exchange four-way valve work；Or first the upper bridge arm switch of bridge arm circuit drive the lower bridge arm switch conduction of the second bridge arm circuit in conducting, positive polarity power supply is exported through direct current four-way valve incoming end to direct current four-way valve；And second the upper bridge arm switch of bridge arm circuit drive the lower bridge arm switch conduction of the first bridge arm circuit in conducting, negative polarity power supply is exported through direct current four-way valve incoming end to direct current four-way valve.The present invention improves the compatibility of four-way valve electric-controlled plate.
Description
Technical field
The present invention relates to electronic circuit technology field, in particular to a kind of four-way valve electric-controlled plate and air conditioner.
Background technique
Four-way valve is divided into exchange four-way valve and direct current four-way valve, and the driving power of the two is also classified into AC driven power and straight
Stream driving power is generally required to independence, and the two is not simultaneous between driving power between the drive control circuit of the two
Hold.It usually requires to design two-way drive control circuit in the same pcb board for two kinds of four-way valves, shared PCB space is big, unfavorable
In the volume for reducing air conditioner.Alternatively, being directed to two kinds of four-way valve plate designs, two corresponding pcb boards, this makes every kind of four-way valve,
At least there is one piece of matched use of electric-controlled plate, the versatility that this will lead to electric-controlled plate is low, reduces the development efficiency of enterprise.
Summary of the invention
The main object of the present invention is to propose a kind of four-way valve electric-controlled plate and air conditioner, it is intended to improve four-way valve electric-controlled plate
Compatibility.
To achieve the above object, the present invention proposes a kind of four-way valve electric-controlled plate, including electric-controlled plate, and is set to the electricity
The four-way valve electric-controlled plate on plate is controlled, the four-way valve-driving circuit includes:
Four-way valve incoming end is exchanged, for exchange four-way valve access；
Direct current four-way valve incoming end is accessed for direct current four-way valve；
Driving power ON-OFF control circuit, the work when receiving first control signal, and export first switch driving letter
Number；
Negative polarity power switch driving circuit, the work when receiving second control signal, and export second switch driving
Signal；
H bridge switch circuit, including the first bridge arm switching circuit and the second bridge arm switching circuit connect in the exchange four-way valve
When entering to terminate into there is exchange four-way valve, the upper bridge arm switch of first bridge arm circuit is receiving the first switch driving letter
Number when work, with driving exchange four-way valve work；
When direct current four-way valve incoming end access has direct current four-way valve, the upper bridge arm switch of first bridge arm circuit
The work when receiving the first switch driving signal, and drive the lower bridge arm of second bridge arm circuit to switch in conducting
Conducting, positive power supply is exported through the direct current four-way valve incoming end to direct current four-way valve；And
The upper bridge arm of second bridge arm circuit switchs the work when receiving the second switch driving signal, and is leading
The lower bridge arm switch conduction that first bridge arm circuit is driven when logical, by negative polarity power supply through the direct current four-way valve incoming end
It exports to direct current four-way valve.
Optionally, the driving power ON-OFF control circuit includes positive control signal amplification unit and positive switch driving
Unit, the control signal put the controlled end of unit for accessing the first control signal, the control signal amplification unit
Output end connect with the controlled end of the positive switch driving unit, the input terminal of the positive switch driving unit, which accesses, to be opened
Driving signal is closed, the output end of the positive switch driving unit switchs respectively with the upper bridge arm of first bridge arm circuit and institute
State the lower bridge arm switch connection of the second bridge arm circuit.
Optionally, the positive control signal amplification unit includes first switch tube, first resistor and second resistance, described
The first end of first resistor is the controlled end of the positive control signal amplification unit, the second end of the first resistor with it is described
The interconnection of the first end of the controlled end of first switch tube and the second resistance；The input terminal of the first switch tube and described second
The second end of resistance is grounded, and the output end of the first switch tube is the output end of the control signal amplification unit；
And/or the positive switch driving unit includes second switch, 3rd resistor, the 4th resistance and the 5th resistance,
The first end of the 3rd resistor is the controlled end of the positive switch driving unit, and connects with the first end of the 4th resistance
It connects, the second end of the 3rd resistor is connect with the first end of the controlled end of the second switch and the 5th resistance, institute
State the second end and the first DC power supply of the input terminal of second switch, the second end of the 4th resistance and the 5th resistance
Interconnection.
Optionally, the negative polarity power switch driving circuit includes third switching tube, the 6th resistance, the 7th resistance, institute
State the 6th resistance first end be the negative polarity power switch driving circuit controlled end, the second end of the 6th resistance with
The interconnection of the first end of the controlled end of the third switching tube and the 7th resistance；The input terminal of the third switching tube and described
The second end of 7th resistance is grounded, and the output end of the third switching tube is the defeated of the negative polarity power switch driving circuit
Outlet.
Optionally, the negative polarity power switch driving circuit further includes the first pull-up resistor, first pull-up resistor
First termination the first DC power supply, the upper bridge arm of the second end of first pull-up resistor and the second bridge arm switching circuit
The controlled end of switch connects.
Optionally, the upper bridge arm switch in the first bridge arm switching circuit includes the first relay, first relay
The first end of device coil is connect with the output end of the driving power ON-OFF control circuit, and the second of first relay coil
End ground connection, the movable contact of first relay exchange four-way valve incoming end and direct current four-way valve incoming end company with described
It connects, the stationary contact of first relay accesses the second DC power supply and AC power source；
Lower bridge arm switch in first bridge arm switching circuit includes the 4th switching tube, the 8th resistance and the 9th resistance, described
The first end of 8th resistance is connect with the output end of the negative polarity power switch driving circuit, the second end of the 8th resistance
It is interconnected with the controlled end of the 4th switching tube and the first end of the 9th resistance；The input terminal of 4th switching tube and straight
Flow four-way valve connection；The second end ground connection of the output end of 4th switching tube and the 9th resistance resistance.
Optionally, the four-way valve-driving circuit further includes the first absorbing circuit, first absorbing circuit and described the
One relay is arranged in parallel.
Optionally, the upper bridge arm switch in the second bridge arm switching circuit includes the 5th switching tube, the tenth resistance and the
The first end of 11 resistance, the tenth resistance is connect with the output end of the driving power ON-OFF control circuit, and the described tenth
The first end of the controlled end and the eleventh resistor of the second end of resistance and the 5th switching tube interconnects；5th switch
The second end and the second DC power supply of the input terminal of pipe and the eleventh resistor interconnect；The output end of 5th switching tube with
The connection of direct current four-way valve；
And/or the lower bridge arm switch in the first bridge arm switching circuit includes the 6th switching tube, twelfth resistor and the
The output end that the upper bridge arm of 13 resistance, the first end of the twelfth resistor and the first bridge arm switching circuit switchs connects
It connects, the second end of the twelfth resistor and the controlled end of the 6th switching tube and the first end of the thirteenth resistor are mutual
Even；The input terminal of 6th switching tube is connect with direct current four-way valve；The output end and the described 13rd of 6th switching tube
The second end of resistance is grounded.
Optionally, it further includes current limliting electricity that the four-way valve electric-controlled plate, which is additionally provided with four-way valve electric-controlled plate described in multiple installation positions,
Resistance, the first protective tube and the second protective tube, the current-limiting resistance, first protective tube and second protective tube are installed on institute
It states on the corresponding installation position of four-way valve electric-controlled plate；
The current-limiting resistance is arranged in series output end and the institute of the upper bridge arm switching tube in the first bridge arm switching circuit
Between the controlled end for stating the lower bridge arm switching tube of the second bridge arm switching circuit；
First protective tube is arranged in series the upper bridge arm in the first DC power supply and the first bridge arm switching circuit and opens
Between the input terminal for closing pipe；
Second protective tube is arranged in series in the upper bridge arm switching tube of AC power source and the first bridge arm switching circuit
Input terminal between.
The present invention also proposes a kind of air conditioner, including four-way valve and four-way valve electric-controlled plate as described above, the four-way valve
The output end of electric-controlled plate is connect with the power end of the four-way valve；The four-way valve is direct current four-way valve and/or exchange four-way valve.
The present invention passes through setting driving power ON-OFF control circuit, and the work when receiving first control signal, and defeated
First switch driving signal out is opened with controlling the upper bridge arm switch of the first bridge arm circuit in H bridge switch circuit, will be accessed
AC driven power is exported through the exchange four-way valve incoming end to exchange four-way valve；Or the first bridge arm in H bridge switch circuit
The upper bridge arm of circuit switchs the direct current driving power supply of output access when opening, and described the is driven on this when bridge arm switch conduction
The lower bridge arm switch conduction of two bridge arm circuits exports the positive polarity power supply of access to direct current four-way valve, and the present invention is also set up
Have negative polarity power switch driving circuit, the work when receiving second control signal, and export second switch driving signal with
Control H bridge switch circuit in the second bridge arm circuit upper bridge arm switch work, and on this when bridge arm switch conduction driving described in
The lower bridge arm switch conduction of first bridge arm circuit, the negative polarity power supply of access is exported to direct current four-way valve.The present invention is not necessarily to
Relay is set, it is defeated by H bridge switch circuit and driving power ON-OFF control circuit and negative polarity power switch driving circuit
First switch driving signal or second switch driving signal out, thus the corresponding first bridge arm electricity in driving H bridge switch circuit
When the upper bridge arm switch conduction of road or the second bridge arm circuit, switched on diagonal to control with bridge arm on this by bridge arm switch on this
Lower bridge arm switch conduction, so as to realize the i.e. controllable four bridge arms switch work of output two-way driving signal, and then solution
Certainly same bridge arm switchs the straight-through problem of upper down tube.The present invention solves on same PCB comprising mutually independent exchange four-way valve
When with direct current four-way valve power control circuit, circuit components quantity is more, and shared PCB space is big, is unfavorable for reducing air conditioner
Volume.Alternatively, needing to cause the versatility of electric-controlled plate low for two kinds of four-way valve plate designs, two corresponding pcb boards, reduce
The development efficiency of enterprise.Further, it is also possible to simplify the circuit structure of four-way valve electric-controlled plate, and reduces and the design of device is wanted
It asks, simplifies the electric-controlled plate route of electrical equipment, to reduce the volume of electric-controlled plate, be conducive to improve electric-controlled plate in electrical equipment
Installation convenience.The present invention improves the drive efficiency of four-way valve, and the self-sustaining of four-way valve state may be implemented, and is conducive to
Energy-saving and emission-reduction.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the functional module structure schematic diagram of one embodiment of four-way valve-driving circuit in four-way valve electric-controlled plate of the present invention；
Fig. 2 is the circuit structure schematic diagram of one embodiment of four-way valve-driving circuit in four-way valve electric-controlled plate of the present invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 10 | Driving power ON-OFF control circuit | RY1 | First relay |
| 20 | Negative polarity power switch driving circuit | D1 | First diode |
| 30 | H bridge switch circuit | D2 | Second diode |
| 40 | Second switch circuit | J1 | Current-limiting resistance |
| 50 | First absorbing circuit | F1 | First protective tube |
| 60 | Second absorbing circuit | F2 | Second protective tube |
| 11 | Positive polarity controls signal amplification unit | CN1 | Exchange four-way valve incoming end |
| 12 | Positive polarity switchs driving unit | CN2 | Direct current four-way valve incoming end |
| 31 | First bridge arm switching circuit | Q1~Q6 | First switch tube~the 6th switching tube |
| 32 | Second bridge arm switching circuit | R1~R13 | First resistor~thirteenth resistor |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
The present invention proposes a kind of four-way valve electric-controlled plate.
In air conditioner, four-way valve is usually provided with to realize the switching of refrigeration, dehumidifier mode and heating mode.Specifically
To control four-way valve coil blackout, four-way valve contained spring elastic force is by four-way valve valve when unit operation refrigeration, dehumidifier mode
Core is drawn to four-way valve refrigeration, dehumidifier one end；When unit runs heating mode, four-way valve coil is powered, and coil magnetic force overcomes four
Four-way valve core is drawn onto heating one end after port valve internal spring force.Four-way valve core is in end positions difference, to control
System refrigerant flow processed, which changes, to be freezed or is heated.Certainly in some air-conditionings, when may be set to be refrigeration, dehumidifier
It controls four-way valve coil to be powered, four-way valve coil blackout is controlled when heating, principle is similar.So in heating or process of refrigerastion,
By controlling the on/off electricity of four-way valve, to change its working condition, and then refrigerating/heating pattern switching is realized.
Four-way valve is divided into exchange four-way valve and direct current four-way valve, and the driving power of the two is also classified into AC driven power and straight
Stream driving power is generally required to independence, and the two is not simultaneous between driving power between the drive control circuit of the two
Hold.That is, when on the same pcb board comprising exchanging four-way valve and direct current four-way valve power control circuit, the two driving power
It is needed with control mutually indepedent；If setting exchange four-way valve and the control of any one power supply of direct current four-way valve on one piece of pcb board
When circuit, the two circuit is to cannot achieve compatibility, will lead in this way exchange four-way valve and direct current four-way valve between electric-controlled plate without
Method is general, needs to design two-way drive control circuit in the same pcb board for two kinds of four-way valves, includes on this same PCB
When mutually independent exchange four-way valve and direct current four-way valve power control circuit, circuit components quantity is more, shared PCB space
Greatly, it is unfavorable for reducing the volume of air conditioner.Alternatively, being directed to two kinds of four-way valve plate designs, two corresponding pcb boards, this makes every kind
Four-way valve will at least have one piece of matched use of electric-controlled plate, and the versatility that this will lead to electric-controlled plate is low, reduces opening for enterprise
Send out efficiency.
Referring to Fig.1, in an embodiment of the present invention, which includes:
Four-way valve incoming end CN1 is exchanged, for exchange four-way valve access；
Direct current four-way valve incoming end CN2 is accessed for direct current four-way valve；
Driving power ON-OFF control circuit 10, the work when receiving first control signal, and export first switch driving
Signal；
Negative polarity power switch driving circuit 20, the work when receiving second control signal, and export second switch drive
Dynamic signal；
H bridge switch circuit 30, including the first bridge arm switching circuit 31 and the second bridge arm switching circuit 32, in the exchange four
When port valve incoming end CN1 access has exchange four-way valve, the upper bridge arm switch of first bridge arm circuit is receiving described first
It works when switching drive signal, with driving exchange four-way valve work；
When direct current four-way valve incoming end CN2 access has direct current four-way valve, the upper bridge arm of first bridge arm circuit
The work when receiving the first switch driving signal is switched, and drives the lower bridge arm of second bridge arm circuit in conducting
Switch conduction exports positive polarity power supply to direct current four-way valve through the direct current four-way valve incoming end CN2；And
The upper bridge arm of second bridge arm circuit switchs the work when receiving the second switch driving signal, and is leading
The lower bridge arm switch conduction that first bridge arm circuit is driven when logical, by negative polarity power supply through the direct current four-way valve incoming end
CN2 is exported to direct current four-way valve.
In the present embodiment, exchange four-way valve incoming end CN1 is respectively used to access with direct current four-way valve incoming end CN2 and exchanges four
Port valve and direct current four-way valve, specifically, the both ends for exchanging four-way valve incoming end CN1 are connect with the both ends of exchange four-way valve coil,
The both ends of direct current four-way valve incoming end CN2 are connect with the both ends of direct current four-way valve coil.Wherein, four-way valve incoming end is suitable for direct current
In the power electrode incoming end of four-way valve coil, the electric current of direct current driving power supply is from one in two terminals of four-way valve incoming end
It is a when flowing out to direct current four-way valve, then it is flowed into from another from direct current four-way valve.Generally, in air conditioner exchange four-way valve and
Direct current four-way valve selects a setting, certainly in other embodiments, exchange four-way valve and straight can also be arranged simultaneously in air conditioner
Four-way valve is flowed, the present embodiment is said for being provided with an exchange four-way valve or a direct current four-way valve in air conditioner
It is bright.
In some embodiments, four-way valve electric-controlled plate is set on the electric-controlled plate of air-conditioner outdoor unit, is also set on electric-controlled plate
It is equipped with the main control chip of the devices work such as compressor, blower in control air-conditioner outdoor unit, the driving power of the present embodiment switchs control
20 control based on main control chip of circuit 10 and negative polarity power switch driving circuit processed is believed according to the control of main control chip output
Number, export corresponding switching drive signal.Specifically, main control chip can be the pulse control signal of high and low level, receive
To high level pulse control signal when (first control signal), driving power ON-OFF control circuit 10 export first switch driving
Signal；When receiving low level pulse control signal (first control signal), driving power ON-OFF control circuit 10 is motionless
Make, namely does not export first switch driving signal.Negative polarity power switch driving circuit 20, then in the pulse for receiving high level
When controlling signal (second control signal), second switch driving signal is exported；Receiving low level pulse control signal (
Two control signals) when be failure to actuate, namely do not export second switch driving signal.
The upper bridge arm switch of first bridge arm circuit is for controlling the AC driven power and direct current four-way valve of exchange four-way valve
Direct current driving power supply output, the input that AC power source (L, N) and DC power supply may be implemented is compatible with.In exchange four-way valve access
End CN1 access has under the operating condition of exchange four-way valve (direct current four-way valve does not access at this time), the upper bridge arm switch of the first bridge arm circuit
AC driven power is exported when conducting, with driving exchange four-way valve work, and make four-way valve open to corresponding refrigeration, dehumidifier (or
Person's heating) mode.And in the upper bridge arm switch OFF of the first bridge arm circuit, then stop exporting AC driven power, to stop
Driving power is provided for exchange four-way valve, so that four-way valve be made to open to heating (or refrigeration, dehumidifier) mode.
Under the operating condition that direct current four-way valve incoming end CN2 access has direct current four-way valve (exchanging four-way valve at this time not access),
The common end of upper bridge arm switch and lower bridge arm switch is connect with one end of four-way valve incoming end in first bridge arm circuit, the second bridge arm
The common end of upper bridge arm switch and lower bridge arm switch is that the first bridge arm circuit is connect with the other end of four-way valve incoming end in circuit.
The upper bridge arm of first bridge arm circuit switchs and the upper bridge arm of the second bridge arm circuit switch is connect with driving power, the first bridge arm circuit
Lower bridge arm switch and the second bridge arm circuit lower bridge arm switch with driving power ground connection, that is, the first bridge arm circuit and second
Bridge arm circuit makes four-way valve coil connect driving power and ground by four-way valve incoming end, and the driving power that will be accessed is through four
Port valve incoming end is exported to four-way valve, so that four-way valve be driven to work.
When the upper bridge arm switch conduction of the first bridge arm circuit, direct current driving power supply is exported, and in the upper of the first bridge arm circuit
When bridge arm switch OFF, stop output direct current driving power supply.The upper bridge arm switch that the present embodiment passes through the first bridge arm circuit of control
Whether work, whether may be controlled to exchange four-way valve offer AC driven power, to realize the driving of exchange four-way valve, together
When by control the first bridge arm circuit upper bridge arm switch work whether, also can control driving direct current four-way valve work direct current
Whether driving power exports, to realize the driving of direct current four-way valve.
It should be noted that four-way valve coil includes first end and second end, what the positive polarity driving power of four-way valve referred to
Be: the electric current of driving power is flowed into from the first end of four-way valve coil, after flowing through four-way valve coil, from four-way valve coil second end
Outflow.The negative polarity driving power of four-way valve refers to: the electric current of driving power is flowed into from the second end of four-way valve coil, is flowed through
After four-way valve coil, flowed out from the first end of four-way valve coil.
(the negative polarity power switch driving circuit 20 at this time when receiving first switch driving signal of H bridge switch circuit 30
Do not work), the upper bridge arm switch conduction of the first bridge arm circuit, and the lower bridge arm of second bridge arm circuit is driven to open after switch
Conducting is closed, the upper bridge arm switch of the first bridge arm circuit flows into access driving power through the common end of the first bridge arm circuit at this time
The second end B of the first end A of four-way valve coil, four-way valve coil switch ground connection through the lower bridge arm of the second bridge arm circuit, will connect
The positive polarity driving power entered is exported to direct current four-way valve.(this when receiving second switch driving signal of H bridge switch circuit 30
When driving power ON-OFF control circuit 10 do not work), the upper bridge arm switch conduction of the second bridge arm circuit, and drive institute after switch
State the lower bridge arm switch conduction of lower bridge arm circuit, at this time the upper bridge arm switch of the second bridge arm circuit will access driving power through the
The common end of one bridge arm circuit flows into the second end B of four-way valve coil, and the first end A of four-way valve coil is through the first bridge arm circuit
Lower bridge arm switch ground connection, the negative polarity driving power of access is exported to direct current four-way valve.The present embodiment passes through driving electricity
Source switch control circuit 10 controls upper bridge arm switch conduction/shutdown of the first bridge arm circuit, then passes through the first bridge arm circuit
The ON/OFF of upper bridge arm switch, controls lower bridge arm switch conduction/shutdown of the second diagonal bridge arm circuit.The present embodiment is logical
Negative polarity power switch driving circuit 20 is crossed to control upper bridge arm switch conduction/shutdown of the second bridge arm circuit, then passes through second
The ON/OFF of the upper bridge arm switch of bridge arm circuit, controls lower bridge arm switch conduction/shutdown of the second diagonal bridge arm circuit.
So set, can driven by output first switch driving signal or second switch driving signal arbitrarily driving signal all the way
When moving the upper bridge arm switch conduction of corresponding first bridge arm circuit or the second bridge arm circuit, controlled by bridge arm switch on this with
Bridge arm switchs the lower bridge arm switch conduction on diagonal on this, so as to realize that output two-way driving signal can control four bridges
Arm switch work.
It is provided with the characteristic of two operating positions in left end and right end according to four-way valve core, is connect by controlling four-way valve coil
Enter the direction of power electrode to control four-way valve spool position, when the first end A of four-way valve coil access power electrode is positive (directly
The electric current for flowing driving power flows into coil from the end), spool is switched to left end (or right end) when second end B is negative, and works as four-way valve
The second end B of coil access power electrode is positive (electric current of direct current driving power supply flows into coil from the end), when first end A is negative
Spool is switched to right end (or left end), when four-way valve core is in valve body left or right, after power supply disconnection, and four-way valve valve
It is constant that core may remain in current location.So set, enter refrigeration, dehumidifier or heating mode after air conditioner is started, or
Person's refrigeration, dehumidifier mode and heating mode switch mutually, pass through the upper bridge arm switch of the first bridge arm circuit in control H-bridge circuit
The conducting switched with the upper bridge arm of the second bridge arm circuit forms driving four to control the conducting of the switch of the lower bridge arm on diagonal line
The electric current of the direct current driving power supply of port valve work flows through the direction of four-way valve so that four-way valve open to corresponding refrigeration, dehumidifier or
Then heating mode can turn off bridge arm switch all in H-bridge circuit, to turn off the direct current driving power supply for being supplied to four-way valve,
The self-sustaining for realizing four-way valve state, to reach energy saving purpose.
The present invention passes through setting driving power ON-OFF control circuit 10, and the work when receiving first control signal, and
First switch driving signal is exported, is opened, will be connect with controlling the upper bridge arm switch of the first bridge arm circuit in H bridge switch circuit 30
The AC driven power entered is exported through the exchange four-way valve incoming end CN1 to exchange four-way valve；Or in H bridge switch circuit 30
The upper bridge arm of first bridge arm circuit switchs the direct current driving power supply of output access when opening, and drives when bridge arm switch conduction on this
The lower bridge arm switch conduction for moving second bridge arm circuit, the positive polarity power supply of access is exported to direct current four-way valve, this hair
It is bright to be additionally provided with negative polarity power switch driving circuit 20, the work when receiving second control signal, and export second switch
Driving signal switchs work with the upper bridge arm for controlling the second bridge arm circuit in H bridge switch circuit 30, and bridge arm switch is led on this
The lower bridge arm switch conduction that first bridge arm circuit is driven when logical exports the negative polarity power supply of access to direct current four-way
Valve.The present invention no setting is required relay, passes through H bridge switch circuit 30 and driving power ON-OFF control circuit 10 and negative polarity
Power switch driving circuit 20 exports first switch driving signal or second switch driving signal, thus in driving H bridge switch electricity
In road 30 when the upper bridge arm switch conduction of corresponding first bridge arm circuit or the second bridge arm circuit, controlled by bridge arm switch on this
System switchs the lower bridge arm switch conduction on diagonal with bridge arm on this, so as to realize output two-way driving signal i.e. controllable four
A bridge arm switchs work, and then it is straight-through to solve the problems, such as that same bridge arm switchs upper down tube.The present invention solves on same PCB
When mutually independent exchange four-way valve and direct current four-way valve power control circuit, circuit components quantity is more, shared PCB space
Greatly, it is unfavorable for reducing the volume of air conditioner.Alternatively, needing to lead to electricity for two kinds of four-way valve plate designs, two corresponding pcb boards
The versatility for controlling plate is low, reduces the development efficiency of enterprise.Further, it is also possible to simplify the circuit structure of four-way valve electric-controlled plate, with
And reduction, to the design requirement of device, the electric-controlled plate route for simplifying electrical equipment is conducive to mention to reduce the volume of electric-controlled plate
Installation convenience of the high electric-controlled plate in electrical equipment.The present invention improves the drive efficiency of four-way valve, and four-way may be implemented
The self-sustaining of valve state, is beneficial to energy conservation emission reduction.
It is understood that four-way valve electric-controlled plate of the present invention, circuit structure are simple, it is easy to accomplish, it can be widely applied to
It needs to export in the driving of the electric elements of positive-negative polarity driving circuit namely the present invention includes but is not limited to the drive to four-way valve
It is dynamic.
Referring to FIG. 1 and FIG. 2, in one embodiment, the driving power ON-OFF control circuit 10 includes positive polarity control letter
Number amplifying unit 11 and positive polarity switch driving unit 12, and the control signal puts the controlled end of unit for accessing described first
Signal is controlled, the output end of the control signal amplification unit is connect with the controlled end of positive polarity switch driving unit 12,
The input terminal of the positive polarity switch driving unit 12 accesses switching drive signal, and the positive polarity switchs the defeated of driving unit 12
Outlet switchs with the lower bridge arm of the upper bridge arm of first bridge arm circuit switch and second bridge arm circuit connect respectively.
It should be noted that the supply voltage of the control chip on electric-controlled plate is usually 3.3V or 5V, the control of output
The voltage of signal processed is also usually 3.3V or 5V, and the upper bridge arm switch and lower bridge arm switch in H bridge switch circuit 30 are usual
It is set as relay or power tube, it usually needs 9V, 12V or higher driving voltage go to drive, for this purpose, the present embodiment is logical
Cross setting negative polarity control signal amplification unit open will control chip output second control signal amplify processing after export.
Negative polarity switchs driving unit when receiving amplified second control signal, then exports the positive polarity switch driving of high level
Signal to the upper bridge arm switch of the second bridge arm circuit and the lower bridge arm of the first bridge arm circuit is switched to drive the second bridge arm circuit
The lower bridge arm switch conduction of upper bridge arm switch and the first bridge arm circuit.It is not received in negative polarity switch driving unit amplified
When second control signal, then low level positive polarity switching drive signal is exported to the upper bridge arm switch of the second bridge arm circuit and the
To drive, the upper bridge arm of the second bridge arm circuit switchs the lower bridge arm switch of one bridge arm circuit and the lower bridge arm of the first bridge arm circuit is opened
Close cut-off.
Referring to FIG. 1 and FIG. 2, in one embodiment, the positive polarity control signal amplification unit 11 includes first switch tube
The first end of Q1, first resistor R1 and second resistance R2, the first resistor R1 are that the positive polarity controls signal amplification unit
11 controlled end, the controlled end of the second end of the first resistor R1 and the first switch tube Q1 and the second resistance R2's
First end interconnection；The second end of the input terminal of the first switch tube Q1 and the second resistance R2 are grounded, and described first opens
The output end for closing pipe Q1 is the output end of the control signal amplification unit；
And/or the positive polarity switch driving unit 12 includes second switch, 3rd resistor, the 4th resistance and the 5th
Resistance, the first end of the 3rd resistor are the controlled end that the positive polarity switchs driving unit 12, and with the 4th resistance
First end connection, the first of the controlled end of the second end of the 3rd resistor and the second switch and the 5th resistance
End connection, the second end of the input terminal of the second switch, the second end of the 4th resistance and the 5th resistance and the
One DC power supply VCC1 interconnection.
In the present embodiment, first switch tube Q1 is optional to be realized using NPN type triode, the optional use of second switch
Metal-oxide-semiconductor, IGBT constant power pipe realize, control of the first switch tube Q1 based on the control chip on electric-controlled plate, NPN type triode
The conducting in the second control signal for receiving high level is the when second switch is connected to control second switch conducting
The lower bridge arm switch of two bridge arm circuits and the upper bridge arm switch of first bridge arm circuit provide driving electric energy, so that the second bridge arm
The lower bridge arm of circuit switchs and the upper bridge arm of first bridge arm circuit switch forms current loop with four-way valve and drives four-way
Valve work.First switch tube Q1 cut-off when receiving low level second control signal, and control second switch cut-off.
Referring to FIG. 1 and FIG. 2, in one embodiment, the negative polarity power switch driving circuit 20 includes third switching tube
Q3, the 6th resistance R6, the 7th resistance R7, the first end of the 6th resistance R6 are the negative polarity power switch driving circuit 20
Controlled end, the of the controlled end of the second end of the 6th resistance R6 and the third switching tube Q3 and the 7th resistance R7
One end interconnection；The input terminal of the third switching tube Q3 and the second end of the 4th resistance are grounded, the third switching tube
The output end of Q3 is the output end of the negative polarity power switch driving circuit 20.
In the present embodiment, third switching tube Q3 can be realized using switching tubes such as triode, IGBT, metal-oxide-semiconductors, this implementation
Example third switching tube Q3 is optional to be realized using NPN triode, and NPN triode is in the first control signal for receiving high level
Conducting, to export upper bridge arm switch of the second switch driving signal into H bridge switch circuit 30 in second bridge arm switching circuit 32
Pipe to drive the upper bridge arm switching tube conducting in the second bridge arm switching circuit 32, and exports DC power supply, is receiving low level
First control signal when end, to stop upper bridge arm of the output first switch driving signal into the second bridge arm switching circuit 32
Switching tube.6th resistance R6, the 7th resistance R7 constitute bleeder circuit, for defeated after being divided the first control signal of access
Out to NPN triode.
Referring to FIG. 1 and FIG. 2, in one embodiment, the negative polarity power switch driving circuit 20 further includes the first pull-up
The of first the first DC power supply VCC1, the first pull-up resistor R11 of termination of resistance R21, the first pull-up resistor R11
Two ends are connect with the controlled end that the upper bridge arm of the second bridge arm switching circuit 32 switchs.
In the present embodiment, it is to be appreciated that the upper bridge arm switch of the second bridge arm circuit is the switching tube of low level conducting,
Such as P-MOS pipe, therefore when positive polarity power switch driving circuit does not work, namely not output cathode driving signal when,
Then by the first pull-up resistor R21 come when upper bridge arm switch controlled end keep high-potential voltage different, so can be improved
Upper bridge arm switch to the response speed of positive polarity driving signal, while can also to avoid positive polarity power switch driving circuit not
When output cathode driving signal, the interference signal on circuit triggers upper bridge arm switch and misleads.Certainly in other embodiments,
The upper bridge arm switch of second bridge arm circuit is the switching tube for being also possible to low level conducting, at this time the first pull-up resistor R21 then phase
That answers replaces with pull down resistor.
Referring to FIG. 1 and FIG. 2, in one embodiment, the upper bridge arm switch in the first bridge arm switching circuit 31 includes the
One relay RY1, the first end of the first relay RY1 coil and the output end of the driving power ON-OFF control circuit 10
Connection, the second end ground connection of the first relay RY1 coil, the movable contact of the first relay RY1 exchange four with described
Port valve incoming end CN1 is connected with the direct current four-way valve incoming end CN2, the stationary contact access second of the first relay RY1
DC power supply VCC2 and AC power source (L, N)；
Lower bridge arm switch in first bridge arm switching circuit 31 includes the 4th switching tube Q4, the 8th resistance R8 and the 9th resistance
R9, the first end of the 8th resistance R8 are connect with the output end of the negative polarity power switch driving circuit 20, and the described 8th
The first end of the controlled end and the 9th resistance R9 of the second end of resistance R8 and the 4th switching tube Q4 interconnects；Described 4th
The input terminal of switching tube Q4 is connect with direct current four-way valve；What the output end of the 4th switching tube Q4 and the 9th resistance R9 hindered
Second end ground connection.
In the present embodiment, the upper bridge arm switch in the first bridge arm switching circuit 31 is realized using the first relay RY1, after
The power supply of the coil of electric appliance is controlled by driving power ON-OFF control circuit 10, the MOS in driving power ON-OFF control circuit 10
When pipe is connected, coil one end ground connection of relay, a first DC power supply VCC1 of termination must be conducted, to provide for four-way valve
Driving power, to drive four-way valve to work.In one embodiment, the first DC power supply VCC1 and direct current driving power supply can use
Same power supply is realized, such as the power supply of 12V can be used to drive relay and direct current four-way valve to work.
4th switching tube Q4 is optional to be realized using metal-oxide-semiconductor, IGBT constant power pipe, and the present embodiment is chosen as N-MOS pipe, the
The control that four switching tube Q4 are switched based on the upper bridge arm of the second bridge arm switching circuit 32, is receiving the second bridge arm switching circuit 32
The switch output of upper bridge arm high level driving signal when be connected, to provide ground terminal for four-way valve, the 4th switch at this time
Upper bridge arm switch, the four-way valve of bridge arm circuit form current loop on pipe Q4 and second, to drive four-way valve to work, the 4th switch
Pipe Q4 keeps the state of cut-off when the upper bridge arm of bridge arm circuit on second switchs cut-off, so as to avoid and the first bridge arm electricity
Upper bridge arm switch in road is straight-through up and down.
Referring to FIG. 1 and FIG. 2, in one embodiment, the four-way valve electric-controlled plate further includes the first absorbing circuit 40, and described
One absorbing circuit 40 is arranged in parallel with the first relay RY1.
In the present embodiment, the first absorbing circuit 40 is optional to be realized using diode D11, capacitor C11, which is continuous
Diode is flowed, freewheeling diode is arranged in parallel at the both ends of the first relay RY1 coil, and coil, can be at it when passing through electric current
Both ends generate induced electromotive force.When the current vanishes, induced electromotive force can generate reverse voltage to the element in circuit.It is continuous
Diodes in parallel is flowed at coil both ends, and when flowing through the current vanishes in coil, the induced electromotive force that coil generates passes through two poles
The circuit that pipe and coil are constituted is done work and is consumed, so as to avoid damage front stage circuits.In some embodiments, first inhales
RC absorbing circuit can also be used by receiving circuit 40, or is constituted and absorbed using RCD absorbing circuit namely resistance, inductance and capacitor
Circuit realizes that the first absorbing circuit 40 is connect by the both ends of four-way valve incoming end with the coil both ends of direct current four-way valve, use
The self induction electromotive force that this inductive load of four-way valve generates is exchanged, when absorbing and disconnecting with consumption circuit to prevent overvoltage from causing
Load isolation breakdown.
Referring to FIG. 1 and FIG. 2, in one embodiment, the upper bridge arm switch in the second bridge arm switching circuit 32 includes the
The first end of five switching tube Q5, the tenth resistance R10 and eleventh resistor R11, the tenth resistance R10 are opened with the driving power
Close the output end connection of control circuit 10, the second end of the tenth resistance R10 and the controlled end of the 5th switching tube Q5 and
The first end of the eleventh resistor R11 interconnects；The of the input terminal of the 5th switching tube Q5 and the eleventh resistor R11
Two ends and the second DC power supply VCC2 interconnection；The output end of the 5th switching tube Q5 is connect with direct current four-way valve；
And/or the lower bridge arm switch in the first bridge arm switching circuit 31 includes the 6th switching tube Q6, twelfth resistor
R12 and thirteenth resistor R13, the upper bridge arm of the first end of the twelfth resistor R12 and the first bridge arm switching circuit 31
The output end of switch connects, the controlled end of the second end of the twelfth resistor R12 and the 6th switching tube Q6 and described the
The first end of 13 resistance R13 interconnects；The input terminal of the 6th switching tube Q6 is connect with direct current four-way valve；6th switch
The second end of the output end of pipe Q6 and the thirteenth resistor R13 ground connection.
In the present embodiment, the 5th switching tube Q5 is optional to be realized using metal-oxide-semiconductor, IGBT constant power pipe, and the present embodiment is optional
For P-MOS pipe, P-MOS pipe in the positive polarity switching drive signal for receiving high level, cut-off, receive it is low level just
It is connected when polarity switch driving signal, so that driving power is provided for four-way valve, and in conducting, the first bridge arm circuit of driving
Lower bridge arm switch conduction.9th resistance R9 is current-limiting resistance J1, and the electric current to avoid output to metal-oxide-semiconductor grid is excessive and damages
Metal-oxide-semiconductor, the tenth resistance R10 is biasing resistor, to provide bias voltage for metal-oxide-semiconductor.The optional use metal-oxide-semiconductor of 6th switching tube Q6,
IGBT constant power pipe realizes, the present embodiment is chosen as N-MOS pipe, the upper bridge of the 6th switching tube Q6 based on bridge arm circuit on first
The control of arm switch, the upper bridge arm switch conduction in bridge arm circuit on first and conducting when exporting the driving signal of high level, from
And ground terminal is provided for four-way valve, upper bridge arm switch, the four-way valve of bridge arm circuit are formed on the 6th switching tube Q6 and first at this time
Current loop, to drive four-way valve to work.
Referring to FIG. 1 and FIG. 2, in one embodiment, the four-way valve electric-controlled plate is additionally provided with four-way described in multiple installation positions
Valve electric-controlled plate further includes current-limiting resistance J1, the first protective tube F1 and the second protective tube F2, the current-limiting resistance J1, first guarantor
Dangerous pipe F1 and the second protective tube F2 are installed on the corresponding installation position of the four-way valve electric-controlled plate；
The current-limiting resistance J1 is arranged in series in the output end of the upper bridge arm switching tube of the first bridge arm switching circuit 31
Between the controlled end of the lower bridge arm switching tube of the second bridge arm switching circuit 32；
The first protective tube F1 is arranged in series in the first DC power supply VCC1 and the first bridge arm switching circuit 31
Between the input terminal of upper bridge arm switching tube；
The second protective tube F2 is arranged in series in the upper bridge of AC power source (L, N) and the first bridge arm switching circuit 31
Between the input terminal of arm switch pipe.
It is understood that exchanging four-way valve in air conditioner and direct current four-way valve selecting a setting, in practical application
When, the installation position of the first protective tube F1, the second protective tube F2 and current-limiting resistance J1 are reserved on electric-controlled plate, user can be according to need
It asks, to access current-limiting resistance J1, the first protective tube F1 and the second protective tube F2 of insurance, to select connection driving exchange four-way valve
Driving circuit, connection driving direct current four-way valve driving circuit.There is exchange four-way valve in exchange four-way valve incoming end CN1 access
When, the first protective tube F1 is arranged in series and is exchanged between four-way valve incoming end CN1 in AC driven power with described, at this time second
The installation position of protective tube F2 and current-limiting resistance J1 can be arranged using open circuit or high resistant, so that the first bridge arm switching circuit 31
The AC driven power of upper bridge arm switch access does not flow through lower bridge arm switch and direct current four-way valve incoming end CN2.In direct current
When four-way valve incoming end CN2 access has direct current four-way valve, the second protective tube F2 is arranged in series in DC power supply and the first bridge arm
Between the upper bridge arm switch of switching circuit 31, the current-limiting resistance J1 upper bridge arm for being arranged in series the first bridge arm switching circuit 31 is switched
With direct current four-way valve incoming end CN2, thus connect the first bridge arm switching circuit 31 upper bridge arm switch with direct current four-way valve access
CN2 is held, the installation position of the first protective tube F1 can be using open circuit or high resistant setting, so that the first bridge arm switching circuit 31 at this time
Upper bridge arm switch access direct current driving power supply may not flow into exchange four-way valve incoming end CN1.
A kind of air conditioner of the present invention, including four-way valve and four-way valve electric-controlled plate as described above, the four-way valve electric-controlled plate
Two power ends of two output ends and the direct current four-way valve connect one to one；The four-way valve is direct current four-way valve
And/or exchange four-way valve.The detailed construction of the four-way valve electric-controlled plate can refer to above-described embodiment, and details are not described herein again；It can manage
Solution, due to having used above-mentioned four-way valve electric-controlled plate in the air condition of that present invention, the embodiment packet of the air condition of that present invention
Whole technical solutions of above-mentioned four-way valve electric-controlled plate whole embodiments are included, and technical effect achieved is also identical, herein
It repeats no more.
The foregoing is merely alternative embodiments of the invention, are not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of four-way valve electric-controlled plate, including electric-controlled plate, and the four-way valve electric-controlled plate being set on the electric-controlled plate, feature
It is, the four-way valve electric-controlled plate includes:
Four-way valve incoming end is exchanged, for exchange four-way valve access；
Direct current four-way valve incoming end is accessed for direct current four-way valve；
Driving power ON-OFF control circuit, the work when receiving first control signal, and export first switch driving signal；
Negative polarity power switch driving circuit, the work when receiving second control signal, and export second switch driving signal；
H bridge switch circuit, including the first bridge arm switching circuit and the second bridge arm switching circuit, in the exchange four-way valve incoming end
When access has exchange four-way valve, the upper bridge arm of first bridge arm circuit is switched when receiving the first switch driving signal
Work, with driving exchange four-way valve work；
When direct current four-way valve incoming end access has direct current four-way valve, the upper bridge arm switch of first bridge arm circuit is being connect
Work when receiving the first switch driving signal, and drive the lower bridge arm of second bridge arm circuit to switch in conducting and lead
It is logical, positive power supply is exported through the direct current four-way valve incoming end to direct current four-way valve；And
The upper bridge arm of second bridge arm circuit switchs the work when receiving the second switch driving signal, and in conducting
The lower bridge arm switch conduction for driving first bridge arm circuit exports negative polarity power supply through the direct current four-way valve incoming end
To direct current four-way valve.
2. four-way valve electric-controlled plate as described in claim 1, which is characterized in that the driving power ON-OFF control circuit includes just
To control signal amplification unit and positive switch driving unit, the control signal puts the controlled end of unit for accessing described the
One control signal, the output end of the control signal amplification unit are connect with the controlled end of the positive switch driving unit, institute
State the input terminal access switching drive signal of positive switch driving unit, the output end of the positive switch driving unit respectively with
The upper bridge arm switch of first bridge arm circuit and the lower bridge arm of second bridge arm circuit switch connection.
3. four-way valve electric-controlled plate as claimed in claim 2, which is characterized in that the positive control signal amplification unit includes the
One switching tube, first resistor and second resistance, the first end of the first resistor are the positive control signal amplification unit
Controlled end, the second end of the first resistor and the controlled end of the first switch tube and the first end of the second resistance are mutual
Even；The second end of the input terminal of the first switch tube and the second resistance is grounded, the output end of the first switch tube
For the output end of the control signal amplification unit；
And/or the positive switch driving unit includes second switch, 3rd resistor, the 4th resistance and the 5th resistance, it is described
The first end of 3rd resistor is the controlled end of the positive switch driving unit, and connect with the first end of the 4th resistance,
The second end of the 3rd resistor is connect with the first end of the controlled end of the second switch and the 5th resistance, and described
The input terminal of two switching tubes, the second end of the second end of the 4th resistance and the 5th resistance and the first DC power supply are mutual
Even.
4. four-way valve electric-controlled plate as described in claim 1, which is characterized in that the negative polarity power switch driving circuit includes
Third switching tube, the 6th resistance, the 7th resistance, the first end of the 6th resistance are the negative polarity power switch driving circuit
Controlled end, the second end of the 6th resistance and the first end of the controlled end of the third switching tube and the 7th resistance are mutual
Even；The second end of the input terminal of the third switching tube and the 7th resistance is grounded, the output end of the third switching tube
For the output end of the negative polarity power switch driving circuit.
5. four-way valve electric-controlled plate as claimed in claim 4, which is characterized in that the negative polarity power switch driving circuit also wraps
Include the first pull-up resistor, first the first DC power supply of termination of first pull-up resistor, the second of first pull-up resistor
The controlled end switched with the upper bridge arm of the second bridge arm switching circuit is held to connect.
6. four-way valve electric-controlled plate as described in claim 1, which is characterized in that the upper bridge arm in the first bridge arm switching circuit
Switch includes the first relay, the output of the first end of first relay coil and the driving power ON-OFF control circuit
End connection, the second end ground connection of first relay coil, the movable contact of first relay exchange four-way valve with described
Incoming end is connected with the direct current four-way valve incoming end, the stationary contact of first relay access the second DC power supply with exchange
Power supply；
In first bridge arm switching circuit lower bridge arm switch include the 4th switching tube, the 8th resistance and the 9th resistance, the described 8th
The first end of resistance is connect with the output end of the negative polarity power switch driving circuit, the second end of the 8th resistance and institute
State the first end interconnection of the controlled end and the 9th resistance of the 4th switching tube；The input terminal and direct current four of 4th switching tube
Port valve connection；The second end ground connection of the output end of 4th switching tube and the 9th resistance resistance.
7. four-way valve electric-controlled plate as claimed in claim 6, which is characterized in that the four-way valve-driving circuit further includes the first suction
Circuit is received, first absorbing circuit is arranged in parallel with first relay.
8. four-way valve electric-controlled plate as described in claim 1, which is characterized in that the upper bridge arm in the second bridge arm switching circuit
Switch includes the 5th switching tube, the tenth resistance and eleventh resistor, and the first end of the tenth resistance is opened with the driving power
Close the output end connection of control circuit, the second end of the tenth resistance and the controlled end and the described tenth of the 5th switching tube
The first end of one resistance interconnects；The input terminal of 5th switching tube and the second end and the second direct current of the eleventh resistor
Source interconnection；The output end of 5th switching tube is connect with direct current four-way valve；
And/or the lower bridge arm switch in the first bridge arm switching circuit includes the 6th switching tube, twelfth resistor and the 13rd
Resistance, the first end of the twelfth resistor are connect with the output end that the upper bridge arm of the first bridge arm switching circuit switchs, institute
The first end for stating the second end of twelfth resistor and the controlled end of the 6th switching tube and the thirteenth resistor interconnects；It is described
The input terminal of 6th switching tube is connect with direct current four-way valve；The of the output end of 6th switching tube and the thirteenth resistor
Two ends ground connection.
9. four-way valve electric-controlled plate as described in claim 1, which is characterized in that the four-way valve electric-controlled plate is additionally provided with multiple peaces
The dress position four-way valve electric-controlled plate further includes current-limiting resistance, the first protective tube and the second protective tube, the current-limiting resistance, described the
One protective tube and second protective tube are installed on the corresponding installation position of the four-way valve electric-controlled plate；
The current-limiting resistance is arranged in series output end and described the in the upper bridge arm switching tube of the first bridge arm switching circuit
Between the controlled end of the lower bridge arm switching tube of two bridge arm switching circuits；
First protective tube is arranged in series in the upper bridge arm switching tube of the first DC power supply and the first bridge arm switching circuit
Input terminal between；
Second protective tube is arranged in series in the defeated of AC power source and the upper bridge arm switching tube of the first bridge arm switching circuit
Enter between end.
10. a kind of air conditioner, which is characterized in that including four-way valve and four-way valve as claimed in any one of claims 1 to 9 electricity
Plate is controlled, the output end of the four-way valve electric-controlled plate is connect with the power end of the four-way valve；The four-way valve is direct current four-way valve
And/or exchange four-way valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622850.8A CN110410990B (en) | 2019-07-09 | 2019-07-09 | Automatically controlled board of cross valve and air conditioner |
| PCT/CN2020/100623 WO2021004450A1 (en) | 2019-07-09 | 2020-07-07 | Four-way valve electrical control board and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910622850.8A CN110410990B (en) | 2019-07-09 | 2019-07-09 | Automatically controlled board of cross valve and air conditioner |
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| CN110410990A true CN110410990A (en) | 2019-11-05 |
| CN110410990B CN110410990B (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021004450A1 (en) * | 2019-07-09 | 2021-01-14 | 广东美的制冷设备有限公司 | Four-way valve electrical control board and air conditioner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113608455A (en) * | 2021-07-29 | 2021-11-05 | 梁文华 | Test tube cleaning instrument control circuit that disinfects |
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| CN204349439U (en) * | 2014-11-21 | 2015-05-20 | 南京鼎瑞智能电力科技有限公司 | The anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor |
| JP6354623B2 (en) * | 2015-03-05 | 2018-07-11 | 住友電気工業株式会社 | Conversion device |
| CN106208641B (en) * | 2016-09-18 | 2020-02-21 | 北京机械设备研究所 | Alternating current-direct current multiplexing circuit |
| CN110410990B (en) * | 2019-07-09 | 2021-03-19 | 广东美的制冷设备有限公司 | Automatically controlled board of cross valve and air conditioner |
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|---|---|
| CN110410990B (en) | 2021-03-19 |
| WO2021004450A1 (en) | 2021-01-14 |
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