CN109442595A - Air conditioner and its outdoor unit control circuit - Google Patents
Air conditioner and its outdoor unit control circuit Download PDFInfo
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- CN109442595A CN109442595A CN201811305948.2A CN201811305948A CN109442595A CN 109442595 A CN109442595 A CN 109442595A CN 201811305948 A CN201811305948 A CN 201811305948A CN 109442595 A CN109442595 A CN 109442595A
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- unit
- relay
- air conditioner
- switch
- preliminary filling
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/22—Arrangement or mounting thereof
-
- 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)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air conditioner and its outdoor unit control circuits, the outdoor unit control circuit includes: rectifier bridge, first ac input end is connected by the switch of the first relay with the side of electric main, and the second ac input end is connected with the other side of electric main；Second relay, switch in parallel with the first relay after the switch of the second relay is connected with thermistor；Preliminary filling unit；Switch unit；Control unit, when air conditioner powers on, indoor communication unit and outside communication unit form current supply circuit, switching means conductive, second relay powers on closure, and to carry out preliminary filling to preliminary filling unit, control unit controls switch unit after preliminary filling unit preliminary filling, outdoor controller controls the first relay closure, and outdoor unit powers on.The power supply control of outdoor unit can be realized without the setting high-current relay of mounted circuit board indoors for the circuit, so as to while reducing cost, control energy consumption, the space of mounted circuit board in release room.
Description
Technical field
The present invention relates to air conditioner technical field, in particular to a kind of outdoor unit of the air conditioner control circuit and a kind of air-conditioning
Device.
Background technique
Currently, as shown in Figure 1, the power supply control of outdoor unit generally uses the relay of two high currents in transducer air conditioning
Device is controlled, and one is located in indoor mounted circuit board, another is located outside in mounted circuit board.When need give outdoor unit supply
Relay in electricity Shi Xian opening chamber in mounted circuit board obtains outdoor unit electric.Since outdoor unit has big electrolytic capacitor, thus it is necessary
It is first big electrolytic capacitor using thermistor string into major loop, then recycles the high current relay in outdoor mounted circuit board
Device carries out short-circuit processing to thermistor.
Since the relay that aforesaid way uses two high currents is controlled, higher cost；High current relay
The control of device needs biggish electric current, and energy consumption is high；The volume of high-current relay is larger, occupies more circuit board space.
Summary of the invention
The present invention is directed at least solve one of the technical problem in above-mentioned technology to a certain extent.For this purpose, of the invention
One purpose is to propose a kind of outdoor unit of the air conditioner control circuit, which is arranged high current without mounted circuit board indoors
The power supply control of outdoor unit can be realized in relay, electromechanical in release room so as to while reducing cost, control energy consumption
The space of road plate.
It is another object of the present invention to propose a kind of air conditioner.
In order to achieve the above objectives, one aspect of the present invention embodiment proposes a kind of outdoor unit of the air conditioner control circuit, institute
Stating air conditioner includes: indoor communication unit and outside communication unit, and the indoor is logical by the first output end of unit
It crosses the first connecting line to be connected with the first input end of the outside communication unit, the second output that the indoor passes through unit
End is connected by the second connecting line with the second input terminal of the outside communication unit；The outdoor unit control circuit includes:
Outdoor controller；Rectifier bridge, the first ac input end of the rectifier bridge pass through the switch and electric main of the first relay
Side be connected, the second ac input end of the rectifier bridge is connected with the other side of electric main；Second relay, described
Switch in parallel with first relay after the switch of two relays is connected with thermistor；Preliminary filling unit, the preliminary filling list
One end of member is connected with the direct current positive output end of the rectifier bridge, the other end of the preliminary filling unit and the direct current of the rectifier bridge
Negative output terminal is connected；Switch unit, the first end of the switch unit are connected with one end of the coil of second relay, institute
The other end for stating the coil of the second relay is connected with first connecting line, the second end of the switch unit and described second
Connecting line is connected；Control unit, one end of described control unit are connected with the control terminal of the switch unit, described control unit
Second end be connected with second connecting line；Wherein, when the air conditioner powers on, the indoor communication unit and described
Outside communication unit forms current supply circuit, and the switching means conductive, second relay powers on closure, to described pre-
It fills unit and carries out preliminary filling, described control unit controls the switch unit after preliminary filling unit preliminary filling and disconnects, described
Outdoor controller controls the first relay closure, to be powered to outdoor unit of the air conditioner.
Outdoor unit of the air conditioner control circuit according to an embodiment of the present invention, when air conditioner powers on, indoor communication unit
Member and outside communication unit form current supply circuit, and switching means conductive, the second relay powers on closure, with to preliminary filling unit into
Row preliminary filling, control unit control switch unit after preliminary filling unit preliminary filling, and outdoor controller controls the first relay
Device closure, to be powered to outdoor unit of the air conditioner.High-current relay is arranged without mounted circuit board indoors in the circuit
The power supply control of outdoor unit can be achieved, so as to while reducing cost, control energy consumption, the sky of mounted circuit board in release room
Between.
In addition, the outdoor unit of the air conditioner control circuit proposed according to that above embodiment of the present invention can also have it is following attached
The technical characteristic added:
According to one embodiment of present invention, above-mentioned outdoor unit of the air conditioner control circuit further include: EMC unit, institute
State EMC (Electro Magnetic Compatibility, Electro Magnetic Compatibility) unit be connected to the electric main with it is described
Between rectifier bridge.
According to one embodiment of present invention, the switch unit includes: first switch tube, the collection of the first switch tube
Electrode is connected with one end of the coil of second relay；First resistor, one end of the first resistor is respectively with described
The other end of the coil of two relays is connected with first connecting line；Second resistance, one end of the second resistance with it is described
The other end of first resistor is connected, and has first to connect between the other end of the first resistor and one end of the second resistance
Contact, the other end of the second resistance are connected with the base stage of the first switch tube, and the other end of the second resistance with
There is the second tie point between the base stage of the first switch tube；3rd resistor, one end of the 3rd resistor and described second
Tie point be connected, the other end of the 3rd resistor be connected with the emitter of the first switch tube afterwards and second connecting line
It is connected.
According to one embodiment of present invention, described control unit includes: photoelectrical coupler, and the photoelectrical coupler includes
The anode of light emitting diode and light-receiving triode, the light emitting diode is connected by the 4th resistance with the first default power supply,
The cathode of the light emitting diode is connected with the outdoor controller, the collector of the light-receiving triode and described first
Tie point is connected, and the emitter of the light-receiving triode is connected with second connecting line.
According to one embodiment of present invention, first relay is high-current relay, and second relay is
Low current relay.
In order to achieve the above objectives, another aspect of the present invention embodiment proposes a kind of air conditioner comprising above-mentioned air-conditioning
The outdoor unit control circuit of device.
Air conditioner according to an embodiment of the present invention, it is indoor when air conditioner powers on by above-mentioned outdoor unit control circuit
Side communication unit and outside communication unit form current supply circuit, and switch unit is led；Logical, the second relay powers on closure, with right
Preliminary filling unit carries out preliminary filling, and control unit controls switch unit after preliminary filling unit preliminary filling, outdoor controller control
The first relay closure is made, outdoor unit of the air conditioner powers on, can be real without the setting high-current relay of mounted circuit board indoors
The power supply control of existing outdoor unit, so as to while reducing cost, control energy consumption, the space of mounted circuit board in release room.
Detailed description of the invention
Fig. 1 is the block diagram of outdoor unit of the air conditioner control circuit in the related technology；
Fig. 2 is the block diagram of outdoor unit of the air conditioner control circuit according to an embodiment of the invention；
Fig. 3 is the structural representation of indoor communication unit and outside communication unit according to an embodiment of the invention
Figure；
Fig. 4 is the circuit topology figure of outdoor unit of the air conditioner control circuit according to an embodiment of the invention；And
Fig. 5 is the structural schematic diagram of Switching Power Supply according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
It is controlled with reference to the accompanying drawing to describe the motor inductances parameter optimization of the frequency converting air-conditioner compressor of the embodiment of the present invention
Method, non-transitorycomputer readable storage medium, the motor inductances parameter optimization control device of frequency converting air-conditioner compressor and change
Frequency air conditioner.
Fig. 2 is the block diagram of outdoor unit of the air conditioner control circuit according to an embodiment of the invention.Wherein, such as
Shown in Fig. 3, air conditioner includes: indoor communication unit 1 and outside communication unit 2, the first output that indoor passes through unit 1
End is connected by the first connecting line ACN-IN with the first input end of outside communication unit 2, and indoor passes through the second of unit 1
Output end is connected by the second connecting line S with the second input terminal of outside communication unit 2.As shown in Fig. 2, outdoor unit control electricity
Road includes: outdoor controller (not specifically illustrated in figure), rectifier bridge 10, the second relay K2, preliminary filling unit 20, switch unit
30, control unit 40.
Wherein, the first ac input end of rectifier bridge 10 passes through the switch of the first relay K1 and the side of electric main AC
It is connected, the second ac input end of rectifier bridge 10 is connected with the other side of electric main AC.The switch and heat of second relay K2
Switch in parallel after quick resistance PTC1 series connection with the first relay K1.One end of preliminary filling unit 20 and the direct current of rectifier bridge 10 are just defeated
Outlet is connected, and the other end of preliminary filling unit 20 is connected with the direct current negative output terminal of rectifier bridge 10.The first end of switch unit 30 with
One end of the coil of second relay K2 is connected, the other end of the coil of the second relay K2 and the first connecting line ACN-IN phase
Even, the second end of switch unit 30 is connected with the second connecting line S.The control terminal phase of one end of control unit 40 and switch unit 30
Even, the second end of control unit 40 is connected with the second connecting line S.When air conditioner powers on, indoor communication unit 1 and outside
Communication unit 2 forms current supply circuit, and switch unit 30 is connected, and the second relay K2 powers on closure, to carry out to preliminary filling unit 20
Preliminary filling, the control switch unit 30 after preliminary filling 20 preliminary filling of unit of control unit 40 disconnect, outdoor controller control first
Relay K1 closure, outdoor unit of the air conditioner power on.
In Fig. 3, IOComR is represented: indoor unit signal receiving end, IOComS are represented: indoor unit data sending terminal, RXD are room
Outer machine signal receiving end, TXD are outdoor unit signal sending end.
It should be noted that in the present invention, the first relay K1 is high-current relay, the second relay K2 is small electricity
Current relay.
Specifically, the specific structure of indoor communication unit 1 and outside communication unit 2 can refer to Fig. 3, no longer superfluous herein
It states, naturally it is also possible to it is other forms, what the indoor communication unit 1 and outside communication unit 2 for being able to achieve air conditioner communicated
Purpose.When air conditioner shutdown, indoor communication unit 1 and outside communication unit 2 do not have power supply, indoor communication
The optocoupler IC4 of unit 1 is disconnected, and the first connecting line ACN-IN and the second connecting line S are in an off state, are not formed and powered back
Road, thus the coil losing electricity of the second relay K2, the second relay K2 is disconnected.When air conditioner powers on, the indoor unit of air conditioner
The optocoupler IC4 conducting of communication unit 1 on the inside of controller control room, indoor communication unit 1 and outside communication unit 2 are formed and are supplied
It is conducted on electrical circuit, the first connecting line ACN-IN and the second connecting line S, switch unit 30 is connected, and the second relay K2's thinks
Coil obtains electric, and K2 powers on closure, carries out preliminary filling to preliminary filling unit 20 by thermistor PTC1, is closed moment to avoid relay
Electric current is excessive to be caused to impact to circuit.After preliminary filling, 40 control switch unit 30 of control unit is disconnected, outdoor controller control
The first relay K1 closure is made, to be powered to outdoor unit of the air conditioner, thus outdoor unit can be opened.
In the present invention, outdoor unit control circuit is located outside on machine control panel, and the first relay K1 is preliminary filling relay, can
Using low current relay, so as to reduce power consumption, it is not necessary that high-current relay, Ji Keshi is arranged on machine control panel indoors
The power supply control of existing outdoor unit.The cost of low current relay is low, generally can reduce by 70% cost, small electricity than high-current relay
The control of current relay only needs low current i.e. controllable, and energy consumption can reduce 1W or more, and low current relay is small in size, body
The 30% of product only high-current relay is hereinafter, occupy less circuit board space.The circuit is without mounted circuit board indoors as a result,
High-current relay, which is arranged, can be realized the power supply control of outdoor unit, so as to release while reducing cost, control energy consumption
Put the space of indoor mounted circuit board.
Further, according to one embodiment of present invention, as shown in figure 4, above-mentioned outdoor unit control circuit can be with
It include: EMC unit 50.EMC unit 50 is connected between electric main AC and rectifier bridge 10.
Specifically, as shown in figure 4, EMC unit 50 may include the first inductance L1, first capacitor C1 and the second capacitor C2,
Specific connection type is referring to Fig. 4, and details are not described herein again.The electromagnetism to other equipment that EMC unit 50 can both reduce circuit is dry
It disturbs, and circuit can be improved to the resistivity of electromagnetic interference present in the environment of place.Certainly, EMC unit may be it
Its form can achieve the purpose that invention.
According to one embodiment of present invention, as shown in figure 4, above-mentioned outdoor unit control circuit can also include: filtering
Unit 60, filter unit 60 are connected between rectifier bridge 10 and preliminary filling unit 20.
Specifically, as shown in figure 4, filter unit 60 may include third capacitor C3, circuit is can be absorbed in filter unit 60
Flat wave is played the role of in middle spike and pulse.
It should be noted that as shown in figure 4, outdoor unit control circuit can also include fuse FUSE1 voltage-stabilizing device
ZR1.Fuse FUSE1 can carry out overcurrent protection, and voltage-stabilizing device ZR1 can make the voltage for being input to rectifier bridge 1 keep stablizing.
Preliminary filling unit 20 may include big capacity electrolyte capacitor E1.
According to one embodiment of present invention, as shown in figure 4, switch unit 30 may include: first switch tube Q1, first
Resistance R1, second resistance R2 and 3rd resistor R3.
Wherein, the collector of first switch tube Q1 is connected with one end of the coil of the second relay K2.First resistor R1's
One end is connected with the other end of the coil of the second relay K2 and the first connecting line ACN-IN respectively.One end of second resistance R2 with
The other end of first resistor R1 is connected, and has the first connection between the other end of first resistor R1 and one end of second resistance R2
The other end of point A, second resistance R2 are connected with the base stage of first switch tube Q1, and the other end and first switch of second resistance R2
There is the second tie point B between the base stage of pipe Q1.One end of 3rd resistor R3 is connected with the second tie point B, 3rd resistor R3's
The other end is connected after being connected with the emitter of first switch tube Q1 with the second connecting line S.
Control unit 40 may include: photoelectrical coupler IC1.Photoelectrical coupler IC1 includes light emitting diode and light-receiving
The anode of triode, light emitting diode is connected by the 4th resistance R4 with the first default power supply VCC1, the cathode of light emitting diode
It is connected with outdoor controller, the collector of light-receiving triode is connected with the first tie point A, the emitter of light-receiving triode
It is connected with the second connecting line S.
Specifically, when air conditioner powers on, the optocoupler of communication unit 1 on the inside of the indoor machine controller control room of air conditioner
IC4 conducting, indoor communication unit 1 and outside communication unit 2 form current supply circuit, and the first connecting line ACN-IN and second connects
It is conducted on wiring S, Q1 base stage is obtained electric and is connected by resistance R1, R2, and for K2 to be connected and be closed, preliminary filling unit 20 passes through K2
And thermistor PTC1 charges, after fully charged, outdoor controller control is closed for K1, and controls photoelectrical coupler
The cathode that IC1 conducting, i.e. outdoor controller send low level signal to light emitting diode.Photoelectrical coupler IC1 conducting, makes Q1
It closes, so that K2 be made to disconnect, outdoor unit is powered on, into normal operating conditions.When air conditioner shutdown or air conditioner power off suddenly,
Since relay K1, K2 do not power, K1, K2 are closed, and outdoor unit is in close state.
In the present invention, the current ring communication electric current of indoor communication unit 1 and outside communication unit 2, which removes, can be used+
The DC power supply of 24V is powered, and 24VGND Switching Power Supply can also be used and be powered.The structure of Switching Power Supply is referred to figure
5 structure, or other structures are not done specifically defined.
Outdoor unit of the air conditioner control circuit according to an embodiment of the present invention, when air conditioner powers on, indoor communication unit
Member and outside communication unit form current supply circuit, and switching means conductive, the second relay powers on closure, with to preliminary filling unit into
Row preliminary filling, control unit control switch unit after preliminary filling unit preliminary filling, and outdoor controller controls the first relay
Device closure, to be powered to outdoor unit of the air conditioner.High-current relay is arranged without mounted circuit board indoors in the circuit
The power supply control of outdoor unit can be achieved, so as to while reducing cost, control energy consumption, the sky of mounted circuit board in release room
Between.
In addition, the present invention also proposes a kind of air conditioner comprising above-mentioned outdoor unit of the air conditioner control circuit.
Air conditioner according to an embodiment of the present invention, it is indoor when air conditioner powers on by above-mentioned outdoor unit control circuit
Side communication unit and outside communication unit form current supply circuit, and switching means conductive, the second relay powers on closure, to pre-
It fills unit and carries out preliminary filling, control unit controls switch unit after preliminary filling unit preliminary filling, outdoor controller control
First relay closure, outdoor unit of the air conditioner power on, and can be realized without the setting high-current relay of mounted circuit board indoors
The power supply control of outdoor unit, so as to while reducing cost, control energy consumption, the space of mounted circuit board in release room.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing custom logic function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium ", which can be, any may include, stores, communicates, propagates or pass
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium include the following: there is the electricity of one or more wirings
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can then be edited, be interpreted or when necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.Such as, if realized with hardware in another embodiment, following skill well known in the art can be used
Any one of art or their combination are realized: have for data-signal is realized the logic gates of logic function from
Logic circuit is dissipated, the specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although having been shown and retouching above
The embodiment of the present invention is stated, it is to be understood that above-described embodiment is exemplary, and should not be understood as to limit of the invention
System, those skilled in the art can be changed above-described embodiment, modify, replace and become within the scope of the invention
Type.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (6)
1. a kind of outdoor unit of the air conditioner control circuit, which is characterized in that the air conditioner includes: indoor communication unit and room
Outside communication unit, the indoor pass through the first connecting line and the outside communication unit by the first output end of unit
First input end be connected, the indoor is communicated by the second connecting line with the outside by the second output terminal of unit
Second input terminal of unit is connected；The outdoor unit control circuit includes:
Outdoor controller；
Rectifier bridge, the first ac input end of the rectifier bridge pass through the side phase of the switch and electric main of the first relay
Even, the second ac input end of the rectifier bridge is connected with the other side of electric main；
Second relay, the switch of second relay connect with thermistor after with the switch of first relay simultaneously
Connection；
Preliminary filling unit, one end of the preliminary filling unit are connected with the direct current positive output end of the rectifier bridge, the preliminary filling unit
The other end is connected with the direct current negative output terminal of the rectifier bridge；
Switch unit, the first end of the switch unit are connected with one end of the coil of second relay, described second after
The other end of the coil of electric appliance is connected with first connecting line, the second end of the switch unit and the second connecting line phase
Even；
Control unit, one end of described control unit are connected with the control terminal of the switch unit, and the second of described control unit
End is connected with second connecting line；
Wherein, when the air conditioner powers on, the indoor communication unit and outside communication unit formation are powered back
Road, the switching means conductive, second relay power on closure, to carry out preliminary filling, the control to the preliminary filling unit
Unit controls the switch unit after preliminary filling unit preliminary filling and disconnects, the outdoor controller control described first
Relay closure, to be powered to outdoor unit of the air conditioner.
2. outdoor unit of the air conditioner control circuit according to claim 1, which is characterized in that further include:
Filter unit, the filter unit are connected between the rectifier bridge and the preliminary filling unit.
3. outdoor unit of the air conditioner control circuit according to claim 1, which is characterized in that the switch unit includes:
First switch tube, the collector of the first switch tube are connected with one end of the coil of second relay；
First resistor, one end of the first resistor connect with the other end of the coil of second relay and described first respectively
Wiring is connected；
Second resistance, one end of the second resistance are connected with the other end of the first resistor, and the first resistor is another
There is the first tie point, the other end of the second resistance and the first switch between one end and one end of the second resistance
The base stage of pipe is connected, and has the second tie point between the other end of the second resistance and the base stage of the first switch tube；
3rd resistor, one end of the 3rd resistor are connected with second tie point, the other end of the 3rd resistor and institute
The emitter for stating first switch tube is connected to be connected with second connecting line afterwards.
4. outdoor unit of the air conditioner control circuit according to claim 3, which is characterized in that described control unit includes:
Photoelectrical coupler, the photoelectrical coupler include light emitting diode and light-receiving triode, the sun of the light emitting diode
Pole is connected by the 4th resistance with the first default power supply, and the cathode of the light emitting diode is connected with the outdoor controller,
The collector of the light-receiving triode is connected with first tie point, the emitter of the light-receiving triode and described the
Two connecting lines are connected.
5. outdoor unit of the air conditioner control circuit described in any one of -4 according to claim 1, which is characterized in that described first
Relay is high-current relay, and second relay is low current relay.
6. a kind of air conditioner, which is characterized in that controlled including outdoor unit of the air conditioner according to any one of claims 1 to 5
Circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811305948.2A CN109442595A (en) | 2018-11-05 | 2018-11-05 | Air conditioner and its outdoor unit control circuit |
| PCT/CN2019/092902 WO2020093706A1 (en) | 2018-11-05 | 2019-06-26 | Air conditioner and outdoor unit control circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811305948.2A CN109442595A (en) | 2018-11-05 | 2018-11-05 | Air conditioner and its outdoor unit control circuit |
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| Publication Number | Publication Date |
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| CN109442595A true CN109442595A (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811305948.2A Pending CN109442595A (en) | 2018-11-05 | 2018-11-05 | Air conditioner and its outdoor unit control circuit |
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| CN (1) | CN109442595A (en) |
| WO (1) | WO2020093706A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030709A (en) * | 2019-04-29 | 2019-07-19 | 广东美的制冷设备有限公司 | Drive control circuit, air conditioner, control method and computer readable storage medium |
| CN110086156A (en) * | 2019-04-30 | 2019-08-02 | 广东美的制冷设备有限公司 | Drive control circuit and air conditioner |
| CN110762808A (en) * | 2019-10-31 | 2020-02-07 | 广东美的制冷设备有限公司 | Drive control circuit and air conditioner |
| WO2020093706A1 (en) * | 2018-11-05 | 2020-05-14 | 广东美的制冷设备有限公司 | Air conditioner and outdoor unit control circuit thereof |
| CN111976415A (en) * | 2019-05-23 | 2020-11-24 | 广东美的制冷设备有限公司 | Outdoor unit electric control device and vehicle-mounted air conditioner |
| CN114061124A (en) * | 2021-10-15 | 2022-02-18 | 佛山市顺德区美的电子科技有限公司 | Control circuit, control method, equipment and storage medium for air conditioner outdoor unit |
| CN114963346A (en) * | 2022-05-06 | 2022-08-30 | 宁波奥克斯电气股份有限公司 | Totem-pole circuit, air conditioner external unit and air conditioner |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020093706A1 (en) * | 2018-11-05 | 2020-05-14 | 广东美的制冷设备有限公司 | Air conditioner and outdoor unit control circuit thereof |
| CN110030709A (en) * | 2019-04-29 | 2019-07-19 | 广东美的制冷设备有限公司 | Drive control circuit, air conditioner, control method and computer readable storage medium |
| CN110086156A (en) * | 2019-04-30 | 2019-08-02 | 广东美的制冷设备有限公司 | Drive control circuit and air conditioner |
| CN111976415A (en) * | 2019-05-23 | 2020-11-24 | 广东美的制冷设备有限公司 | Outdoor unit electric control device and vehicle-mounted air conditioner |
| CN110762808A (en) * | 2019-10-31 | 2020-02-07 | 广东美的制冷设备有限公司 | Drive control circuit and air conditioner |
| CN114061124A (en) * | 2021-10-15 | 2022-02-18 | 佛山市顺德区美的电子科技有限公司 | Control circuit, control method, equipment and storage medium for air conditioner outdoor unit |
| CN114061124B (en) * | 2021-10-15 | 2024-02-13 | 佛山市顺德区美的电子科技有限公司 | Control circuit, control method, equipment and storage medium of air conditioner outdoor unit |
| CN114963346A (en) * | 2022-05-06 | 2022-08-30 | 宁波奥克斯电气股份有限公司 | Totem-pole circuit, air conditioner external unit and air conditioner |
| CN114963346B (en) * | 2022-05-06 | 2023-08-25 | 宁波奥克斯电气股份有限公司 | Totem pole circuit, air conditioner external unit and air conditioner |
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| Publication number | Publication date |
|---|---|
| WO2020093706A1 (en) | 2020-05-14 |
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Application publication date: 20190308 |
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